680 lines
21 KiB
JavaScript
680 lines
21 KiB
JavaScript
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/*!-----------------------------------------------------------------------------
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* Vegas - Fullscreen Backgrounds and Slideshows.
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* v2.1.3 - built 2015-04-28
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* Licensed under the MIT License.
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* http://vegas.jaysalvat.com/
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* ----------------------------------------------------------------------------
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* Copyright (C) 2010-2015 Jay Salvat
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* http://jaysalvat.com/
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* --------------------------------------------------------------------------*/
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(function ($) {
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'use strict';
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var defaults = {
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slide: 0,
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delay: 5000,
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preload: false,
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preloadImage: false,
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preloadVideo: false,
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timer: true,
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overlay: false,
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autoplay: true,
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shuffle: false,
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cover: true,
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color: null,
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align: 'center',
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valign: 'center',
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transition: 'fade',
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transitionDuration: 1000,
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transitionRegister: [],
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animation: null,
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animationDuration: 'auto',
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animationRegister: [],
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init: function () {},
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play: function () {},
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pause: function () {},
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walk: function () {},
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slides: [
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// {
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// src: null,
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// color: null,
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// delay: null,
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// align: null,
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// valign: null,
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// transition: null,
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// transitionDuration: null,
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// animation: null,
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// animationDuration: null,
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// cover: true,
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// video: {
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// src: [],
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// mute: true,
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// loop: true
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// }
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// ...
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]
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};
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var videoCache = {};
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var Vegas = function (elmt, options) {
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this.elmt = elmt;
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this.settings = $.extend({}, defaults, $.vegas.defaults, options);
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this.slide = this.settings.slide;
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this.total = this.settings.slides.length;
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this.noshow = this.total < 2;
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this.paused = !this.settings.autoplay || this.noshow;
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this.$elmt = $(elmt);
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this.$timer = null;
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this.$overlay = null;
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this.$slide = null;
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this.timeout = null;
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this.transitions = [
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'fade', 'fade2',
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'blur', 'blur2',
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'flash', 'flash2',
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'negative', 'negative2',
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'burn', 'burn2',
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'slideLeft', 'slideLeft2',
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'slideRight', 'slideRight2',
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'slideUp', 'slideUp2',
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'slideDown', 'slideDown2',
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'zoomIn', 'zoomIn2',
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'zoomOut', 'zoomOut2',
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'swirlLeft', 'swirlLeft2',
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'swirlRight', 'swirlRight2'
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];
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this.animations = [
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'kenburns',
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'kenburnsLeft', 'kenburnsRight',
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'kenburnsUp', 'kenburnsUpLeft', 'kenburnsUpRight',
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'kenburnsDown', 'kenburnsDownLeft', 'kenburnsDownRight'
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];
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if (this.settings.transitionRegister instanceof Array === false) {
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this.settings.transitionRegister = [ this.settings.transitionRegister ];
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}
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if (this.settings.animationRegister instanceof Array === false) {
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this.settings.animationRegister = [ this.settings.animationRegister ];
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}
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this.transitions = this.transitions.concat(this.settings.transitionRegister);
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this.animations = this.animations.concat(this.settings.animationRegister);
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this.support = {
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objectFit: 'objectFit' in document.body.style,
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transition: 'transition' in document.body.style || 'WebkitTransition' in document.body.style,
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video: $.vegas.isVideoCompatible()
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};
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if (this.settings.shuffle === true) {
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this.shuffle();
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}
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this._init();
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};
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Vegas.prototype = {
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_init: function () {
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var $wrapper,
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$overlay,
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$timer,
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isBody = this.elmt.tagName === 'BODY',
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timer = this.settings.timer,
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overlay = this.settings.overlay,
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self = this;
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// Preloading
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this._preload();
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// Wrapper with content
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if (!isBody) {
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this.$elmt.css('height', this.$elmt.css('height'));
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$wrapper = $('<div class="vegas-wrapper">')
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.css('overflow', this.$elmt.css('overflow'))
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.css('padding', this.$elmt.css('padding'));
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// Some browsers don't compute padding shorthand
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if (!this.$elmt.css('padding')) {
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$wrapper
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.css('padding-top', this.$elmt.css('padding-top'))
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.css('padding-bottom', this.$elmt.css('padding-bottom'))
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.css('padding-left', this.$elmt.css('padding-left'))
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.css('padding-right', this.$elmt.css('padding-right'));
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}
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this.$elmt.clone(true).children().appendTo($wrapper);
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this.elmt.innerHTML = '';
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}
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// Timer
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if (timer && this.support.transition) {
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$timer = $('<div class="vegas-timer"><div class="vegas-timer-progress">');
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this.$timer = $timer;
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this.$elmt.prepend($timer);
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}
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// Overlay
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if (overlay) {
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$overlay = $('<div class="vegas-overlay">');
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if (typeof overlay === 'string') {
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$overlay.css('background-image', 'url(' + overlay + ')');
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}
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this.$overlay = $overlay;
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this.$elmt.prepend($overlay);
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}
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// Container
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this.$elmt.addClass('vegas-container');
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if (!isBody) {
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this.$elmt.append($wrapper);
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}
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setTimeout(function () {
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self.trigger('init');
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self._goto(self.slide);
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if (self.settings.autoplay) {
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self.trigger('play');
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}
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}, 1);
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},
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_preload: function () {
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var video, img, i;
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for (i = 0; i < this.settings.slides.length; i++) {
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if (this.settings.preload || this.settings.preloadImages) {
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if (this.settings.slides[i].src) {
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img = new Image();
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img.src = this.settings.slides[i].src;
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}
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}
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if (this.settings.preload || this.settings.preloadVideos) {
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if (this.support.video && this.settings.slides[i].video) {
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if (this.settings.slides[i].video instanceof Array) {
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video = this._video(this.settings.slides[i].video);
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} else {
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video = this._video(this.settings.slides[i].video.src);
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}
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}
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}
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}
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},
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_random: function (array) {
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return array[Math.floor(Math.random() * (array.length - 1))];
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},
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_slideShow: function () {
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var self = this;
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if (this.total > 1 && !this.paused && !this.noshow) {
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this.timeout = setTimeout(function () {
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self.next();
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}, this._options('delay'));
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}
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},
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_timer: function (state) {
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var self = this;
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clearTimeout(this.timeout);
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if (!this.$timer) {
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return;
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}
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this.$timer
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.removeClass('vegas-timer-running')
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.find('div')
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.css('transition-duration', '0ms');
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if (this.paused || this.noshow) {
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return;
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}
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if (state) {
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setTimeout(function () {
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self.$timer
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.addClass('vegas-timer-running')
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.find('div')
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.css('transition-duration', self._options('delay') - 100 + 'ms');
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}, 100);
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}
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},
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_video: function (srcs) {
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var video,
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source,
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cacheKey = srcs.toString();
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if (videoCache[cacheKey]) {
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return videoCache[cacheKey];
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}
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if (srcs instanceof Array === false) {
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srcs = [ srcs ];
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}
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video = document.createElement('video');
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video.preload = true;
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srcs.forEach(function (src) {
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source = document.createElement('source');
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source.src = src;
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video.appendChild(source);
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});
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videoCache[cacheKey] = video;
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return video;
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},
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_fadeOutSound: function (video, duration) {
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var self = this,
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delay = duration / 10,
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volume = video.volume - 0.09;
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if (volume > 0) {
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video.volume = volume;
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setTimeout(function () {
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self._fadeOutSound(video, duration);
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}, delay);
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} else {
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video.pause();
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}
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},
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_fadeInSound: function (video, duration) {
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var self = this,
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delay = duration / 10,
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volume = video.volume + 0.09;
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if (volume < 1) {
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video.volume = volume;
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setTimeout(function () {
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self._fadeInSound(video, duration);
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}, delay);
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}
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},
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_options: function (key, i) {
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if (i === undefined) {
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i = this.slide;
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}
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if (this.settings.slides[i][key] !== undefined) {
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return this.settings.slides[i][key];
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}
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return this.settings[key];
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},
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_goto: function (nb) {
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if (typeof this.settings.slides[nb] === 'undefined') {
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nb = 0;
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}
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this.slide = nb;
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var $slide,
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$inner,
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$video,
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$slides = this.$elmt.children('.vegas-slide'),
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src = this.settings.slides[nb].src,
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videoSettings = this.settings.slides[nb].video,
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delay = this._options('delay'),
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align = this._options('align'),
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valign = this._options('valign'),
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color = this._options('color') || this.$elmt.css('background-color'),
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cover = this._options('cover') ? 'cover' : 'contain',
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self = this,
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total = $slides.length,
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video,
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img;
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var transition = this._options('transition'),
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transitionDuration = this._options('transitionDuration'),
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animation = this._options('animation' ),
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animationDuration = this._options('animationDuration');
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if (transition === 'random' || transition instanceof Array) {
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if (transition instanceof Array) {
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transition = this._random(transition);
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} else {
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transition = this._random(this.transitions);
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}
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}
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if (animation === 'random' || animation instanceof Array) {
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if (animation instanceof Array) {
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animation = this._random(animation);
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} else {
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animation = this._random(this.animations);
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}
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}
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if (transitionDuration === 'auto' || transitionDuration > delay) {
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transitionDuration = delay;
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}
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if (animationDuration === 'auto') {
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animationDuration = delay;
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}
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$slide = $('<div class="vegas-slide"></div>');
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if (this.support.transition && transition) {
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$slide.addClass('vegas-transition-' + transition);
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}
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// Video
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if (this.support.video && videoSettings) {
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if (videoSettings instanceof Array) {
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video = this._video(videoSettings);
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} else {
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video = this._video(videoSettings.src);
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}
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video.loop = videoSettings.loop !== undefined ? videoSettings.loop : true;
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video.muted = videoSettings.mute !== undefined ? videoSettings.mute : true;
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if (video.muted === false) {
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video.volume = 0;
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this._fadeInSound(video, transitionDuration);
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} else {
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video.pause();
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}
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$video = $(video)
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.addClass('vegas-video')
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.css('background-color', color);
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if (this.support.objectFit) {
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$video
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.css('object-position', align + ' ' + valign)
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.css('object-fit', cover)
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.css('width', '100%')
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.css('height', '100%');
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} else if (cover === 'contain') {
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$video
|
||
|
|
.css('width', '100%')
|
||
|
|
.css('height', '100%');
|
||
|
|
}
|
||
|
|
|
||
|
|
$slide.append($video);
|
||
|
|
|
||
|
|
// Image
|
||
|
|
|
||
|
|
} else {
|
||
|
|
img = new Image();
|
||
|
|
|
||
|
|
$inner = $('<div class="vegas-slide-inner"></div>')
|
||
|
|
.css('background-image', 'url(' + src + ')')
|
||
|
|
.css('background-color', color)
|
||
|
|
.css('background-position', align + ' ' + valign)
|
||
|
|
.css('background-size', cover);
|
||
|
|
|
||
|
|
if (this.support.transition && animation) {
|
||
|
|
$inner
|
||
|
|
.addClass('vegas-animation-' + animation)
|
||
|
|
.css('animation-duration', animationDuration + 'ms');
|
||
|
|
}
|
||
|
|
|
||
|
|
$slide.append($inner);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!this.support.transition) {
|
||
|
|
$slide.css('display', 'none');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (total) {
|
||
|
|
$slides.eq(total - 1).after($slide);
|
||
|
|
} else {
|
||
|
|
this.$elmt.prepend($slide);
|
||
|
|
}
|
||
|
|
|
||
|
|
self._timer(false);
|
||
|
|
|
||
|
|
function go () {
|
||
|
|
self._timer(true);
|
||
|
|
|
||
|
|
setTimeout(function () {
|
||
|
|
if (transition) {
|
||
|
|
if (self.support.transition) {
|
||
|
|
$slides
|
||
|
|
.css('transition', 'all ' + transitionDuration + 'ms')
|
||
|
|
.addClass('vegas-transition-' + transition + '-out');
|
||
|
|
|
||
|
|
$slides.each(function () {
|
||
|
|
var video = $slides.find('video').get(0);
|
||
|
|
|
||
|
|
if (video) {
|
||
|
|
video.volume = 1;
|
||
|
|
self._fadeOutSound(video, transitionDuration);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
$slide
|
||
|
|
.css('transition', 'all ' + transitionDuration + 'ms')
|
||
|
|
.addClass('vegas-transition-' + transition + '-in');
|
||
|
|
} else {
|
||
|
|
$slide.fadeIn(transitionDuration);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var i = 0; i < $slides.length - 4; i++) {
|
||
|
|
$slides.eq(i).remove();
|
||
|
|
}
|
||
|
|
|
||
|
|
self.trigger('walk');
|
||
|
|
self._slideShow();
|
||
|
|
}, 100);
|
||
|
|
}
|
||
|
|
if (video) {
|
||
|
|
if (video.readyState === 4) {
|
||
|
|
video.currentTime = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
video.play();
|
||
|
|
go();
|
||
|
|
} else {
|
||
|
|
img.src = src;
|
||
|
|
img.onload = go;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
shuffle: function () {
|
||
|
|
var temp,
|
||
|
|
rand;
|
||
|
|
|
||
|
|
for (var i = this.total - 1; i > 0; i--) {
|
||
|
|
rand = Math.floor(Math.random() * (i + 1));
|
||
|
|
temp = this.settings.slides[i];
|
||
|
|
|
||
|
|
this.settings.slides[i] = this.settings.slides[rand];
|
||
|
|
this.settings.slides[rand] = temp;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
play: function () {
|
||
|
|
if (this.paused) {
|
||
|
|
this.paused = false;
|
||
|
|
this.next();
|
||
|
|
this.trigger('play');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
pause: function () {
|
||
|
|
this._timer(false);
|
||
|
|
this.paused = true;
|
||
|
|
this.trigger('pause');
|
||
|
|
},
|
||
|
|
|
||
|
|
toggle: function () {
|
||
|
|
if (this.paused) {
|
||
|
|
this.play();
|
||
|
|
} else {
|
||
|
|
this.pause();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
playing: function () {
|
||
|
|
return !this.paused && !this.noshow;
|
||
|
|
},
|
||
|
|
|
||
|
|
current: function (advanced) {
|
||
|
|
if (advanced) {
|
||
|
|
return {
|
||
|
|
slide: this.slide,
|
||
|
|
data: this.settings.slides[this.slide]
|
||
|
|
};
|
||
|
|
}
|
||
|
|
return this.slide;
|
||
|
|
},
|
||
|
|
|
||
|
|
jump: function (nb) {
|
||
|
|
if (nb < 0 || nb > this.total - 1 || nb === this.slide) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.slide = nb;
|
||
|
|
this._goto(this.slide);
|
||
|
|
},
|
||
|
|
|
||
|
|
next: function () {
|
||
|
|
this.slide++;
|
||
|
|
|
||
|
|
if (this.slide >= this.total) {
|
||
|
|
this.slide = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
this._goto(this.slide);
|
||
|
|
},
|
||
|
|
|
||
|
|
previous: function () {
|
||
|
|
this.slide--;
|
||
|
|
|
||
|
|
if (this.slide < 0) {
|
||
|
|
this.slide = this.total - 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
this._goto(this.slide);
|
||
|
|
},
|
||
|
|
|
||
|
|
trigger: function (fn) {
|
||
|
|
var params = [];
|
||
|
|
|
||
|
|
if (fn === 'init') {
|
||
|
|
params = [ this.settings ];
|
||
|
|
} else {
|
||
|
|
params = [
|
||
|
|
this.slide,
|
||
|
|
this.settings.slides[this.slide]
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
this.$elmt.trigger('vegas' + fn, params);
|
||
|
|
|
||
|
|
if (typeof this.settings[fn] === 'function') {
|
||
|
|
this.settings[fn].apply(this.$elmt, params);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
options: function (key, value) {
|
||
|
|
var oldSlides = this.settings.slides.slice();
|
||
|
|
|
||
|
|
if (typeof key === 'object') {
|
||
|
|
this.settings = $.extend({}, defaults, $.vegas.defaults, key);
|
||
|
|
} else if (typeof key === 'string') {
|
||
|
|
if (value === undefined) {
|
||
|
|
return this.settings[key];
|
||
|
|
}
|
||
|
|
this.settings[key] = value;
|
||
|
|
} else {
|
||
|
|
return this.settings;
|
||
|
|
}
|
||
|
|
|
||
|
|
// In case slides have changed
|
||
|
|
if (this.settings.slides !== oldSlides) {
|
||
|
|
this.total = this.settings.slides.length;
|
||
|
|
this.noshow = this.total < 2;
|
||
|
|
this._preload();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
destroy: function () {
|
||
|
|
clearTimeout(this.timeout);
|
||
|
|
|
||
|
|
this.$elmt.removeClass('vegas-container');
|
||
|
|
this.$elmt.find('> .vegas-slide').remove();
|
||
|
|
this.$elmt.find('> .vegas-wrapper').clone(true).children().appendTo(this.$elmt);
|
||
|
|
this.$elmt.find('> .vegas-wrapper').remove();
|
||
|
|
|
||
|
|
if (this.settings.timer) {
|
||
|
|
this.$timer.remove();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.settings.overlay) {
|
||
|
|
this.$overlay.remove();
|
||
|
|
}
|
||
|
|
|
||
|
|
this.elmt._vegas = null;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
$.fn.vegas = function(options) {
|
||
|
|
var args = arguments,
|
||
|
|
error = false,
|
||
|
|
returns;
|
||
|
|
|
||
|
|
if (options === undefined || typeof options === 'object') {
|
||
|
|
return this.each(function () {
|
||
|
|
if (!this._vegas) {
|
||
|
|
this._vegas = new Vegas(this, options);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
} else if (typeof options === 'string') {
|
||
|
|
this.each(function () {
|
||
|
|
var instance = this._vegas;
|
||
|
|
|
||
|
|
if (!instance) {
|
||
|
|
throw new Error('No Vegas applied to this element.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof instance[options] === 'function' && options[0] !== '_') {
|
||
|
|
returns = instance[options].apply(instance, [].slice.call(args, 1));
|
||
|
|
} else {
|
||
|
|
error = true;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
if (error) {
|
||
|
|
throw new Error('No method "' + options + '" in Vegas.');
|
||
|
|
}
|
||
|
|
|
||
|
|
return returns !== undefined ? returns : this;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
$.vegas = {};
|
||
|
|
$.vegas.defaults = defaults;
|
||
|
|
|
||
|
|
$.vegas.isVideoCompatible = function () {
|
||
|
|
return !/(Android|webOS|Phone|iPad|iPod|BlackBerry|Windows Phone)/i.test(navigator.userAgent);
|
||
|
|
};
|
||
|
|
|
||
|
|
})(window.jQuery || window.Zepto);
|