768 lines
18 KiB
JavaScript
768 lines
18 KiB
JavaScript
webshims.register('mediaelement-yt', function($, webshims, window, document, undefined, options){
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"use strict";
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var mediaelement = webshims.mediaelement;
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var ytAPI = $.Deferred();
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window.onYouTubePlayerAPIReady = function() {
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ytAPI.resolve();
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};
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if(window.YT && YT.Player){
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window.onYouTubePlayerAPIReady();
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}
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var getProps = {
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paused: true,
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ended: false,
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currentSrc: '',
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duration: window.NaN,
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readyState: 0,
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networkState: 0,
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videoHeight: 0,
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videoWidth: 0,
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error: null,
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buffered: {
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start: function(index){
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if(index){
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webshims.error('buffered index size error');
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return;
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}
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return 0;
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},
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end: function(index){
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if(index){
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webshims.error('buffered index size error');
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return;
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}
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return 0;
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},
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length: 0
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}
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};
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var getPropKeys = Object.keys(getProps);
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var getSetProps = {
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currentTime: 0,
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volume: 1,
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muted: false
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};
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var getSetPropKeys = Object.keys(getSetProps);
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var playerStateObj = $.extend({
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isActive: 'html5',
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activating: 'html5',
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wasSwfReady: false,
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_metadata: false,
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_callMeta: false,
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currentTime: 0,
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_buffered: 0,
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_ppFlag: undefined
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}, getProps, getSetProps);
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var trigger = function(elem, evt){
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evt = $.Event(evt);
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evt.preventDefault();
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$.event.trigger(evt, undefined, elem);
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};
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var resetSwfProps = (function(){
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var resetProtoProps = ['_buffered', '_metadata', '_ppFlag', 'currentSrc', 'currentTime', 'duration', 'ended', 'networkState', 'paused', 'videoHeight', 'videoWidth', '_callMeta'];
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var len = resetProtoProps.length;
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return function(data){
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if(!data){return;}
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var lenI = len;
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var networkState = data.networkState;
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data.readyState = 0;
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while(--lenI){
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delete data[resetProtoProps[lenI]];
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}
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data.buffered.length = 0;
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clearInterval(data._timeInterval);
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if(networkState){
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trigger(data._elem, 'emptied');
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}
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};
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})();
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var getComputedDimension = (function(){
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var dimCache = {};
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var getVideoDims = function(data){
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var ret, poster, img;
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if(dimCache[data.currentSrc]){
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ret = dimCache[data.currentSrc];
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} else if(data.videoHeight && data.videoWidth){
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dimCache[data.currentSrc] = {
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width: data.videoWidth,
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height: data.videoHeight
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};
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ret = dimCache[data.currentSrc];
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} else if((poster = $.attr(data._elem, 'poster'))){
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ret = dimCache[poster];
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if(!ret){
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img = document.createElement('img');
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img.onload = function(){
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dimCache[poster] = {
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width: this.width,
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height: this.height
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};
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if(dimCache[poster].height && dimCache[poster].width){
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setElementDimension(data, $.prop(data._elem, 'controls'));
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} else {
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delete dimCache[poster];
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}
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img.onload = null;
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};
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img.src = poster;
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if(img.complete && img.onload){
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img.onload();
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}
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}
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}
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return ret || {width: 300, height: data._elemNodeName == 'video' ? 150 : 50};
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};
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var getCssStyle = function(elem, style){
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return elem.style[style] || (elem.currentStyle && elem.currentStyle[style]) || (window.getComputedStyle && (window.getComputedStyle( elem, null ) || {} )[style]) || '';
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};
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var minMaxProps = ['minWidth', 'maxWidth', 'minHeight', 'maxHeight'];
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var addMinMax = function(elem, ret){
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var i, prop;
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var hasMinMax = false;
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for (i = 0; i < 4; i++) {
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prop = getCssStyle(elem, minMaxProps[i]);
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if(parseFloat(prop, 10)){
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hasMinMax = true;
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ret[minMaxProps[i]] = prop;
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}
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}
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return hasMinMax;
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};
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var retFn = function(data){
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var videoDims, ratio, hasMinMax;
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var elem = data._elem;
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var autos = {
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width: getCssStyle(elem, 'width') == 'auto',
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height: getCssStyle(elem, 'height') == 'auto'
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};
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var ret = {
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width: !autos.width && $(elem).width(),
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height: !autos.height && $(elem).height()
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};
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if(autos.width || autos.height){
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videoDims = getVideoDims(data);
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ratio = videoDims.width / videoDims.height;
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if(autos.width && autos.height){
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ret.width = videoDims.width;
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ret.height = videoDims.height;
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} else if(autos.width){
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ret.width = ret.height * ratio;
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} else if(autos.height){
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ret.height = ret.width / ratio;
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}
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if(addMinMax(elem, ret)){
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data.shadowElem.css(ret);
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if(autos.width){
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ret.width = data.shadowElem.height() * ratio;
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}
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if(autos.height){
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ret.height = ((autos.width) ? ret.width : data.shadowElem.width()) / ratio;
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}
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if(autos.width && autos.height){
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data.shadowElem.css(ret);
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ret.height = data.shadowElem.width() / ratio;
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ret.width = ret.height * ratio;
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data.shadowElem.css(ret);
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ret.width = data.shadowElem.height() * ratio;
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ret.height = ret.width / ratio;
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}
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}
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}
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return ret;
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};
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return retFn;
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})();
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var setElementDimension = function(data){
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var dims;
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var elem = data._elem;
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var box = data.shadowElem;
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if(data.isActive == 'third'){
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if(data && data._ytAPI && data._ytAPI.getPlaybackQuality){
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window.ytapi = data._ytAPI;
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}
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data._elem.style.display = '';
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dims = getComputedDimension(data);
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data._elem.style.display = 'none';
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box.css(dims);
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}
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};
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var getYtDataFromElem = function(elem){
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try {
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(elem.nodeName);
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} catch(er){
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return null;
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}
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var data = webshims.data(elem, 'mediaelement');
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return (data && data.isActive == 'third') ? data : null;
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};
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var qualReg = /vq\=(small|medium|large|hd720|hd1080|highres)/i;
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var getYtParams = function(src){
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var found;
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var qual = (src.match(qualReg) || ['', ''])[1].toLowerCase();;
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src = src.split('?');
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if(src[0].indexOf('youtube.com/watch') != -1 && src[1]){
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src = src[1].split('&');
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$.each(src, function(i, name){
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name = name.split('=');
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if(name[0] == 'v'){
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src = name[1];
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found = true;
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return false;
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}
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});
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} else if(src[0].indexOf('youtube.com/v/') != -1) {
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src = src[0].split('/');
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$.each(src, function(i, name){
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if(found){
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src = name;
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return false;
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}
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if(name == 'v'){
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found = true;
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}
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});
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}
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if(!found){
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webshims.error('no youtube id found: '+ src);
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}
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return {
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videoId: src,
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suggestedQuality: qual
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};
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};
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var startAutoPlay = function(data){
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if(!data){return;}
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if( (data._ppFlag === undefined && ($.prop(data._elem, 'autoplay')) || !data.paused)){
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setTimeout(function(){
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if(data.isActive == 'third' && (data._ppFlag === undefined || !data.paused)){
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try {
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$(data._elem).play();
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} catch(er){}
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}
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}, 1);
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}
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};
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var addMediaToStopEvents = $.noop;
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(function(){
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var stopEvents = {
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play: 1,
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playing: 1
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};
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var hideEvtArray = ['play', 'pause', 'playing', 'canplay', 'progress', 'waiting', 'ended', 'loadedmetadata', 'loadstart', 'durationchange', 'emptied'];
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var hidevents = hideEvtArray.map(function(evt){
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return evt +'.webshimspolyfill';
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}).join(' ');
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var hidePlayerEvents = function(event){
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var data = webshims.data(event.target, 'mediaelement');
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if(!data){return;}
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var isNativeHTML5 = ( event.originalEvent && event.originalEvent.type === event.type );
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if( isNativeHTML5 == (data.activating == 'third') ){
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event.stopImmediatePropagation();
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if(stopEvents[event.type] && data.isActive != data.activating){
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$(event.target).pause();
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}
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}
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};
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addMediaToStopEvents = function(elem){
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$(elem)
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.off(hidevents)
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.on(hidevents, hidePlayerEvents)
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;
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hideEvtArray.forEach(function(evt){
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webshims.moveToFirstEvent(elem, evt);
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});
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};
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addMediaToStopEvents(document);
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})();
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$(document).on('emptied', function(e){
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var data = getYtDataFromElem(e.target);
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startAutoPlay(data);
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});
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mediaelement.setActive = function(elem, type, data){
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if(!data){
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data = webshims.data(elem, 'mediaelement');
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}
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if(!data || data.isActive == type){return;}
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if(type != 'html5' && type != 'third'){
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webshims.warn('wrong type for mediaelement activating: '+ type);
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}
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var shadowData = webshims.data(elem, 'shadowData');
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data.activating = type;
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$(elem).pause();
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data.isActive = type;
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if(type == 'third'){
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shadowData.shadowElement = shadowData.shadowFocusElement = data.shadowElem[0];
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$(elem).addClass('yt-api-active nonnative-api-active').hide().getShadowElement().show();
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} else {
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clearInterval(data._timeInterval);
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$(elem).removeClass('yt-api-active nonnative-api-active').show().getShadowElement().hide();
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shadowData.shadowElement = shadowData.shadowFocusElement = false;
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}
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$(elem).trigger('mediaelementapichange');
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};
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var handlePlayPauseState = function(state, data){
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data._ppFlag = true;
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if(state == 'playing'){
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handlePlayPauseState('play', data);
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if(data.readyState < 3){
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data.readyState = 3;
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trigger(data._elem, 'canplay');
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}
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$(data._elem).trigger('playing');
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}
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if(state == 'play' && data.paused){
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data.paused = false;
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trigger(data._elem, 'play');
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} else if(state == 'pause' && !data.paused){
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data.paused = true;
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trigger(data._elem, 'pause');
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}
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};
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var qualityLevels = {
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small: {
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height: 240,
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width: 320
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},
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medium: {
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height: 360,
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width: 640 //480
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},
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large: {
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height: 480,
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width: 853 // 640
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},
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hd720: {
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height: 720,
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width: 1280 // 960
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},
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hd1080: {
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height: 1080,
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width: 1920 // 1440
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},
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highres: {
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height: 1080,
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width: 1920 // 1440
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}
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};
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var addYtAPI = function(mediaElm, elemId, data, ytParams){
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ytAPI.done(function(){
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var handleBuffered = function(){
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var buffered, bufFac;
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if(data._metadata && data._ytAPI.getVideoLoadedFraction){
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bufFac = data._ytAPI.getVideoLoadedFraction();
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buffered = bufFac * data.duration;
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if(data._buffered !== buffered){
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data._buffered = buffered;
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data.buffered.length = 1;
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$(mediaElm).trigger('progress');
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}
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if(bufFac > 0.99){
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data.networkState = 1;
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}
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if(data.readyState < 4 && data.currentTime && (data._buffered - data.currentTime > 9 || bufFac > 0.9) ){
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data.readyState = 4;
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trigger(data._elem, 'canplaythrough');
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}
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}
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};
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var getTime = function(){
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if(data._ytAPI && data._ytAPI.getCurrentTime){
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var currentTime = data._ytAPI.getCurrentTime();
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if(data.currentTime != currentTime){
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data.currentTime = currentTime;
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$(mediaElm).trigger('timeupdate');
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}
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handleBuffered();
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}
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};
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var getData = function(){
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if(data.isActive == 'third' && data._ytAPI && data._ytAPI.getVolume){
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var volume = data._ytAPI.getVolume() / 100;
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var muted = data._ytAPI.isMuted();
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var triggerVolume;
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if(volume != data.volume){
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data.volume = volume;
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triggerVolume = true;
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}
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if(muted != data.muted){
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data.muted = muted;
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triggerVolume = true;
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}
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getTime();
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handleBuffered();
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if(triggerVolume){
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$(mediaElm).trigger('volumechange');
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}
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}
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};
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var getIntervalTime = function(){
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clearInterval(data._timeInterval);
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data._timeInterval = setInterval(function(){
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var currentTime = data._ytAPI.getCurrentTime();
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if(data.currentTime != currentTime){
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data.currentTime = currentTime;
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$(mediaElm).trigger('timeupdate');
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}
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}, 350);
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};
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data._metatrys = 0;
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data._ytAPI = new YT.Player(elemId, {
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height: '100%',
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width: '100%',
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allowfullscreen: 'allowfullscreen',
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webkitallowfullscreen: 'allowfullscreen',
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playerVars: {
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allowfullscreen: true,
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fs: 1,
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rel: 0,
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showinfo: 0,
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autohide: 1,
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controls: $.prop(mediaElm, 'controls') ? 1:0
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},
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videoId: ytParams.videoId,
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events: {
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'onReady': function(e){
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startAutoPlay(data);
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setTimeout(getData, 9);
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setInterval(getData, 5000);
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},
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'onStateChange': function(e){
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if(!e.target.getDuration){
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return;
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}
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var callMeta;
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if(!data._metadata){
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if(ytParams.suggestedQuality){
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data._ytAPI.setPlaybackQuality(ytParams.suggestedQuality);
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}
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var duration = e.target.getDuration();
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var quality = e.target.getPlaybackQuality();
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if(duration){
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data._metadata = true;
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data.duration = duration;
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if(data.readyState < 1){
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data.readyState = 1;
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}
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if(data.networkState < 1){
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data.networkState = 2;
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}
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callMeta = true;
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if(!qualityLevels[quality]){
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quality = 'medium';
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}
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data.videoHeight = qualityLevels[quality].height;
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data.videoWidth = qualityLevels[quality].width;
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}
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if( duration && data._metatrys < 3 && (quality == 'unknown' || (ytParams.suggestedQuality && quality != ytParams.suggestedQuality)) ){
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data._metatrys++;
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data._metadata = false;
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callMeta = false;
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} else {
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data._metatrys = 0;
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}
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}
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if(callMeta){
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$(mediaElm)
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.trigger('durationchange')
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.trigger('loadedmetadata')
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;
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}
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setTimeout(getData, 9);
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if(e.data == 1){
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handlePlayPauseState('playing', data);
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getIntervalTime();
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} else if(e.data == 2){
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clearInterval(data._timeInterval);
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handlePlayPauseState('pause', data);
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} else if(e.data == 3){
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if(data.readyState > 2){
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data.readyState = 2;
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}
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data.networkState = 2;
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$(mediaElm).trigger('waiting');
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} else if(e.data === 0){
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if(data.readyState > 4){
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data.readyState = 4;
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}
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data.networkState = 1;
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clearInterval(data._timeInterval);
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$(mediaElm).trigger('ended');
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}
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}
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}
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});
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$(mediaElm).on('updateytdata', getData);
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});
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};
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if('matchMedia' in window){
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var allowMediaSorting = false;
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try {
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allowMediaSorting = window.matchMedia('only all').matches;
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} catch(er){}
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if(allowMediaSorting){
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mediaelement.sortMedia = function(src1, src2){
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src1 = !src1.media || matchMedia( src1.media ).matches;
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src2 = !src2.media || matchMedia( src2.media ).matches;
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return src1 == src2 ?
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0 :
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src1 ? -1
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: 1;
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};
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}
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}
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|
|
mediaelement.createSWF = function(mediaElem, src, data){
|
|
if(!data){
|
|
data = webshims.data(mediaElem, 'mediaelement');
|
|
}
|
|
var elemId = 'yt-'+ webshims.getID(mediaElem);
|
|
var ytParams = getYtParams(src.src);
|
|
var hasControls = $.prop(mediaElem, 'controls');
|
|
var attrStyle = {};
|
|
|
|
if((attrStyle.height = $.attr(mediaElem, 'height') || '') || (attrStyle.width = $.attr(mediaElem, 'width') || '')){
|
|
$(mediaElem).css(attrStyle);
|
|
webshims.warn("width or height content attributes used. Webshims prefers the usage of CSS (computed styles or inline styles) to detect size of a video/audio. It's really more powerfull.");
|
|
}
|
|
|
|
if(data){
|
|
mediaelement.setActive(mediaElem, 'third', data);
|
|
data.currentSrc = '';
|
|
resetSwfProps(data);
|
|
data.currentSrc = src.srcProp;
|
|
if(hasControls != data._hasControls){
|
|
data.shadowElem.html('<div id="'+ elemId +'">');
|
|
addYtAPI(mediaElem, elemId, data, ytParams);
|
|
} else {
|
|
ytAPI.done(function(){
|
|
if(data._ytAPI.cueVideoById){
|
|
data._ytAPI.cueVideoById(ytParams);
|
|
}
|
|
});
|
|
}
|
|
data._hasControls = hasControls;
|
|
trigger(data._elem, 'loadstart');
|
|
return;
|
|
}
|
|
|
|
|
|
var box = $('<div class="polyfill-video polyfill-mediaelement '+ webshims.shadowClass +'" id="wrapper-'+ elemId +'"><div id="'+ elemId +'"></div>')
|
|
.css({
|
|
position: 'relative',
|
|
overflow: 'hidden'
|
|
})
|
|
;
|
|
var setDimension = function(){
|
|
setElementDimension(data);
|
|
};
|
|
|
|
|
|
|
|
data = webshims.data(mediaElem, 'mediaelement', webshims.objectCreate(playerStateObj, {
|
|
shadowElem: {
|
|
value: box
|
|
},
|
|
_elem: {
|
|
value: mediaElem
|
|
},
|
|
_hasControls: {
|
|
value: hasControls
|
|
},
|
|
currentSrc: {
|
|
value: src.srcProp
|
|
},
|
|
buffered: {
|
|
value: {
|
|
start: function(index){
|
|
if(index >= data.buffered.length){
|
|
webshims.error('buffered index size error');
|
|
return;
|
|
}
|
|
return 0;
|
|
},
|
|
end: function(index){
|
|
if(index >= data.buffered.length){
|
|
webshims.error('buffered index size error');
|
|
return;
|
|
}
|
|
return data._buffered;
|
|
},
|
|
length: 0
|
|
}
|
|
}
|
|
}));
|
|
|
|
|
|
webshims.addShadowDom(mediaElem, box);
|
|
mediaelement.setActive(mediaElem, 'third', data);
|
|
addMediaToStopEvents(mediaElem);
|
|
|
|
box.insertBefore(mediaElem);
|
|
|
|
setElementDimension(data);
|
|
|
|
addYtAPI(mediaElem, elemId, data, ytParams);
|
|
$(mediaElem)
|
|
.on('updatemediaelementdimensions loadedmetadata emptied', setDimension)
|
|
.onWSOff('updateshadowdom', setDimension)
|
|
;
|
|
trigger(data._elem, 'loadstart');
|
|
};
|
|
|
|
(function(){
|
|
var triggerUpdate = function(data){
|
|
clearTimeout(data.updateDataTimer);
|
|
data.updateDataTimer = setTimeout(function(){
|
|
$(data._elem).triggerHandler('updateytdata');
|
|
}, 9);
|
|
};
|
|
var descs = {};
|
|
var mediaSup;
|
|
var createGetProp = function(key){
|
|
descs[key] = {
|
|
get: function(){
|
|
var data = getYtDataFromElem(this);
|
|
if(data){
|
|
return data[key];
|
|
} else {
|
|
return mediaSup[key].prop._supget.apply(this);
|
|
}
|
|
},
|
|
writeable: false
|
|
};
|
|
};
|
|
var createGetSetProp = function(key, setFn){
|
|
createGetProp(key);
|
|
delete descs[key].writeable;
|
|
descs[key].set = setFn;
|
|
};
|
|
|
|
getPropKeys.forEach(createGetProp);
|
|
|
|
createGetSetProp('currentTime', function(t){
|
|
var data = getYtDataFromElem(this);
|
|
if(data){
|
|
t *= 1;
|
|
if (!isNaN(t) && data._ytAPI && data._ytAPI.seekTo) {
|
|
data._ytAPI.seekTo(t);
|
|
triggerUpdate(data);
|
|
}
|
|
} else {
|
|
return mediaSup.currentTime.prop._supset.apply(this, arguments);
|
|
}
|
|
});
|
|
|
|
createGetSetProp('muted', function(mute){
|
|
var data = getYtDataFromElem(this);
|
|
if(data){
|
|
if (data._ytAPI && data._ytAPI.mute) {
|
|
data._ytAPI[mute ? 'mute' : 'unMute']();
|
|
triggerUpdate(data);
|
|
}
|
|
|
|
} else {
|
|
return mediaSup.muted.prop._supset.apply(this, arguments);
|
|
}
|
|
});
|
|
|
|
createGetSetProp('volume', function(v){
|
|
var data = getYtDataFromElem(this);
|
|
if(data){
|
|
v *= 100;
|
|
if (!isNaN(v) && data._ytAPI && data._ytAPI.setVolume) {
|
|
if(v < 0 || v > 100){
|
|
webshims.error('volume greater or less than allowed '+ (v / 100));
|
|
}
|
|
data._ytAPI.setVolume(v);
|
|
triggerUpdate(data);
|
|
}
|
|
|
|
} else {
|
|
return mediaSup.volume.prop._supset.apply(this, arguments);
|
|
}
|
|
});
|
|
|
|
$.each(['play', 'pause'], function(i, name){
|
|
var ytName = name+'Video';
|
|
descs[name] = {
|
|
value: function(){
|
|
var data = getYtDataFromElem(this);
|
|
if(data){
|
|
if(data._ytAPI && data._ytAPI[ytName]){
|
|
data._ytAPI[ytName]();
|
|
handlePlayPauseState(name, data);
|
|
}
|
|
} else {
|
|
return mediaSup[name].prop._supvalue.apply(this, arguments);
|
|
}
|
|
}
|
|
};
|
|
|
|
});
|
|
mediaSup = webshims.defineNodeNameProperties('video', descs, 'prop');
|
|
|
|
webshims.onNodeNamesPropertyModify('video', 'controls', function(val, boolProp){
|
|
var data = getYtDataFromElem(this);
|
|
$(this)[boolProp ? 'addClass' : 'removeClass']('webshims-controls');
|
|
|
|
if(data && data._ytAPI && !data.readyState){
|
|
$(this).mediaLoad();
|
|
}
|
|
});
|
|
|
|
})();
|
|
|
|
|
|
|
|
});
|