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mediaelement-and-player.js
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mediaelement-and-player.js
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/*!
*
* MediaElement.js
* HTML5 <video> and <audio> shim and player
* http://mediaelementjs.com/
*
* Creates a JavaScript object that mimics HTML5 MediaElement API
* for browsers that don't understand HTML5 or can't play the provided codec
* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
*
* Copyright 2010-2014, John Dyer (http://j.hn)
* License: MIT
*
*/
// Namespace
var mejs = mejs || {};
// version number
mejs.version = '2.20.1';
// player number (for missing, same id attr)
mejs.meIndex = 0;
// media types accepted by plugins
mejs.plugins = {
silverlight: [
{version: [3,0], types: ['video/mp4','video/m4v','video/mov','video/wmv','audio/wma','audio/m4a','audio/mp3','audio/wav','audio/mpeg']}
],
flash: [
{version: [9,0,124], types: ['video/mp4','video/m4v','video/mov','video/flv','video/rtmp','video/x-flv','audio/flv','audio/x-flv','audio/mp3','audio/m4a','audio/mpeg', 'video/dailymotion', 'video/x-dailymotion', 'application/x-mpegURL']}
// 'video/youtube', 'video/x-youtube',
// ,{version: [12,0], types: ['video/webm']} // for future reference (hopefully!)
],
youtube: [
{version: null, types: ['video/youtube', 'video/x-youtube', 'audio/youtube', 'audio/x-youtube']}
],
vimeo: [
{version: null, types: ['video/vimeo', 'video/x-vimeo']}
]
};
/*
Utility methods
*/
mejs.Utility = {
encodeUrl: function(url) {
return encodeURIComponent(url); //.replace(/\?/gi,'%3F').replace(/=/gi,'%3D').replace(/&/gi,'%26');
},
escapeHTML: function(s) {
return s.toString().split('&').join('&').split('<').join('<').split('"').join('"');
},
absolutizeUrl: function(url) {
var el = document.createElement('div');
el.innerHTML = '<a href="' + this.escapeHTML(url) + '">x</a>';
return el.firstChild.href;
},
getScriptPath: function(scriptNames) {
var
i = 0,
j,
codePath = '',
testname = '',
slashPos,
filenamePos,
scriptUrl,
scriptPath,
scriptFilename,
scripts = document.getElementsByTagName('script'),
il = scripts.length,
jl = scriptNames.length;
// go through all <script> tags
for (; i < il; i++) {
scriptUrl = scripts[i].src;
slashPos = scriptUrl.lastIndexOf('/');
if (slashPos > -1) {
scriptFilename = scriptUrl.substring(slashPos + 1);
scriptPath = scriptUrl.substring(0, slashPos + 1);
} else {
scriptFilename = scriptUrl;
scriptPath = '';
}
// see if any <script> tags have a file name that matches the
for (j = 0; j < jl; j++) {
testname = scriptNames[j];
filenamePos = scriptFilename.indexOf(testname);
if (filenamePos > -1) {
codePath = scriptPath;
break;
}
}
// if we found a path, then break and return it
if (codePath !== '') {
break;
}
}
// send the best path back
return codePath;
},
/*
* Calculate the time format to use. We have a default format set in the
* options but it can be imcomplete. We ajust it according to the media
* duration.
*
* We support format like 'hh:mm:ss:ff'.
*/
calculateTimeFormat: function(time, options, fps) {
if (time < 0) {
time = 0;
}
if(typeof fps == 'undefined') {
fps = 25;
}
var format = options.timeFormat,
firstChar = format[0],
firstTwoPlaces = (format[1] == format[0]),
separatorIndex = firstTwoPlaces? 2: 1,
separator = ':',
hours = Math.floor(time / 3600) % 24,
minutes = Math.floor(time / 60) % 60,
seconds = Math.floor(time % 60),
frames = Math.floor(((time % 1)*fps).toFixed(3)),
lis = [
[frames, 'f'],
[seconds, 's'],
[minutes, 'm'],
[hours, 'h']
];
// Try to get the separator from the format
if (format.length < separatorIndex) {
separator = format[separatorIndex];
}
var required = false;
for (var i=0, len=lis.length; i < len; i++) {
if (format.indexOf(lis[i][1]) !== -1) {
required=true;
}
else if (required) {
var hasNextValue = false;
for (var j=i; j < len; j++) {
if (lis[j][0] > 0) {
hasNextValue = true;
break;
}
}
if (! hasNextValue) {
break;
}
if (!firstTwoPlaces) {
format = firstChar + format;
}
format = lis[i][1] + separator + format;
if (firstTwoPlaces) {
format = lis[i][1] + format;
}
firstChar = lis[i][1];
}
}
options.currentTimeFormat = format;
},
/*
* Prefix the given number by zero if it is lower than 10.
*/
twoDigitsString: function(n) {
if (n < 10) {
return '0' + n;
}
return String(n);
},
secondsToTimeCode: function(time, options) {
if (time < 0) {
time = 0;
}
// Maintain backward compatibility with method signature before v2.18.
if (typeof options !== 'object') {
var format = 'm:ss';
format = arguments[1] ? 'hh:mm:ss' : format; // forceHours
format = arguments[2] ? format + ':ff' : format; // showFrameCount
options = {
currentTimeFormat: format,
framesPerSecond: arguments[3] || 25
};
}
var fps = options.framesPerSecond;
if(typeof fps === 'undefined') {
fps = 25;
}
var format = options.currentTimeFormat,
hours = Math.floor(time / 3600) % 24,
minutes = Math.floor(time / 60) % 60,
seconds = Math.floor(time % 60),
frames = Math.floor(((time % 1)*fps).toFixed(3));
lis = [
[frames, 'f'],
[seconds, 's'],
[minutes, 'm'],
[hours, 'h']
];
var res = format;
for (i=0,len=lis.length; i < len; i++) {
res = res.replace(lis[i][1]+lis[i][1], this.twoDigitsString(lis[i][0]));
res = res.replace(lis[i][1], lis[i][0]);
}
return res;
},
timeCodeToSeconds: function(hh_mm_ss_ff, forceHours, showFrameCount, fps){
if (typeof showFrameCount == 'undefined') {
showFrameCount=false;
} else if(typeof fps == 'undefined') {
fps = 25;
}
var tc_array = hh_mm_ss_ff.split(":"),
tc_hh = parseInt(tc_array[0], 10),
tc_mm = parseInt(tc_array[1], 10),
tc_ss = parseInt(tc_array[2], 10),
tc_ff = 0,
tc_in_seconds = 0;
if (showFrameCount) {
tc_ff = parseInt(tc_array[3])/fps;
}
tc_in_seconds = ( tc_hh * 3600 ) + ( tc_mm * 60 ) + tc_ss + tc_ff;
return tc_in_seconds;
},
convertSMPTEtoSeconds: function (SMPTE) {
if (typeof SMPTE != 'string')
return false;
SMPTE = SMPTE.replace(',', '.');
var secs = 0,
decimalLen = (SMPTE.indexOf('.') != -1) ? SMPTE.split('.')[1].length : 0,
multiplier = 1;
SMPTE = SMPTE.split(':').reverse();
for (var i = 0; i < SMPTE.length; i++) {
multiplier = 1;
if (i > 0) {
multiplier = Math.pow(60, i);
}
secs += Number(SMPTE[i]) * multiplier;
}
return Number(secs.toFixed(decimalLen));
},
/* borrowed from SWFObject: http://code.google.com/p/swfobject/source/browse/trunk/swfobject/src/swfobject.js#474 */
removeSwf: function(id) {
var obj = document.getElementById(id);
if (obj && /object|embed/i.test(obj.nodeName)) {
if (mejs.MediaFeatures.isIE) {
obj.style.display = "none";
(function(){
if (obj.readyState == 4) {
mejs.Utility.removeObjectInIE(id);
} else {
setTimeout(arguments.callee, 10);
}
})();
} else {
obj.parentNode.removeChild(obj);
}
}
},
removeObjectInIE: function(id) {
var obj = document.getElementById(id);
if (obj) {
for (var i in obj) {
if (typeof obj[i] == "function") {
obj[i] = null;
}
}
obj.parentNode.removeChild(obj);
}
}
};
// Core detector, plugins are added below
mejs.PluginDetector = {
// main public function to test a plug version number PluginDetector.hasPluginVersion('flash',[9,0,125]);
hasPluginVersion: function(plugin, v) {
var pv = this.plugins[plugin];
v[1] = v[1] || 0;
v[2] = v[2] || 0;
return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false;
},
// cached values
nav: window.navigator,
ua: window.navigator.userAgent.toLowerCase(),
// stored version numbers
plugins: [],
// runs detectPlugin() and stores the version number
addPlugin: function(p, pluginName, mimeType, activeX, axDetect) {
this.plugins[p] = this.detectPlugin(pluginName, mimeType, activeX, axDetect);
},
// get the version number from the mimetype (all but IE) or ActiveX (IE)
detectPlugin: function(pluginName, mimeType, activeX, axDetect) {
var version = [0,0,0],
description,
i,
ax;
// Firefox, Webkit, Opera
if (typeof(this.nav.plugins) != 'undefined' && typeof this.nav.plugins[pluginName] == 'object') {
description = this.nav.plugins[pluginName].description;
if (description && !(typeof this.nav.mimeTypes != 'undefined' && this.nav.mimeTypes[mimeType] && !this.nav.mimeTypes[mimeType].enabledPlugin)) {
version = description.replace(pluginName, '').replace(/^\s+/,'').replace(/\sr/gi,'.').split('.');
for (i=0; i<version.length; i++) {
version[i] = parseInt(version[i].match(/\d+/), 10);
}
}
// Internet Explorer / ActiveX
} else if (typeof(window.ActiveXObject) != 'undefined') {
try {
ax = new ActiveXObject(activeX);
if (ax) {
version = axDetect(ax);
}
}
catch (e) { }
}
return version;
}
};
// Add Flash detection
mejs.PluginDetector.addPlugin('flash','Shockwave Flash','application/x-shockwave-flash','ShockwaveFlash.ShockwaveFlash', function(ax) {
// adapted from SWFObject
var version = [],
d = ax.GetVariable("$version");
if (d) {
d = d.split(" ")[1].split(",");
version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
}
return version;
});
// Add Silverlight detection
mejs.PluginDetector.addPlugin('silverlight','Silverlight Plug-In','application/x-silverlight-2','AgControl.AgControl', function (ax) {
// Silverlight cannot report its version number to IE
// but it does have a isVersionSupported function, so we have to loop through it to get a version number.
// adapted from http://www.silverlightversion.com/
var v = [0,0,0,0],
loopMatch = function(ax, v, i, n) {
while(ax.isVersionSupported(v[0]+ "."+ v[1] + "." + v[2] + "." + v[3])){
v[i]+=n;
}
v[i] -= n;
};
loopMatch(ax, v, 0, 1);
loopMatch(ax, v, 1, 1);
loopMatch(ax, v, 2, 10000); // the third place in the version number is usually 5 digits (4.0.xxxxx)
loopMatch(ax, v, 2, 1000);
loopMatch(ax, v, 2, 100);
loopMatch(ax, v, 2, 10);
loopMatch(ax, v, 2, 1);
loopMatch(ax, v, 3, 1);
return v;
});
// add adobe acrobat
/*
PluginDetector.addPlugin('acrobat','Adobe Acrobat','application/pdf','AcroPDF.PDF', function (ax) {
var version = [],
d = ax.GetVersions().split(',')[0].split('=')[1].split('.');
if (d) {
version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
}
return version;
});
*/
// necessary detection (fixes for <IE9)
mejs.MediaFeatures = {
init: function() {
var
t = this,
d = document,
nav = mejs.PluginDetector.nav,
ua = mejs.PluginDetector.ua.toLowerCase(),
i,
v,
html5Elements = ['source','track','audio','video'];
// detect browsers (only the ones that have some kind of quirk we need to work around)
t.isiPad = (ua.match(/ipad/i) !== null);
t.isiPhone = (ua.match(/iphone/i) !== null);
t.isiOS = t.isiPhone || t.isiPad;
t.isAndroid = (ua.match(/android/i) !== null);
t.isBustedAndroid = (ua.match(/android 2\.[12]/) !== null);
t.isBustedNativeHTTPS = (location.protocol === 'https:' && (ua.match(/android [12]\./) !== null || ua.match(/macintosh.* version.* safari/) !== null));
t.isIE = (nav.appName.toLowerCase().indexOf("microsoft") != -1 || nav.appName.toLowerCase().match(/trident/gi) !== null);
t.isChrome = (ua.match(/chrome/gi) !== null);
t.isChromium = (ua.match(/chromium/gi) !== null);
t.isFirefox = (ua.match(/firefox/gi) !== null);
t.isWebkit = (ua.match(/webkit/gi) !== null);
t.isGecko = (ua.match(/gecko/gi) !== null) && !t.isWebkit && !t.isIE;
t.isOpera = (ua.match(/opera/gi) !== null);
t.hasTouch = ('ontouchstart' in window); // && window.ontouchstart != null); // this breaks iOS 7
// Borrowed from `Modernizr.svgasimg`, sources:
// - https://github.com/Modernizr/Modernizr/issues/687
// - https://github.com/Modernizr/Modernizr/pull/1209/files
t.svgAsImg = !!document.implementation.hasFeature('http://www.w3.org/TR/SVG11/feature#Image', '1.1');
// create HTML5 media elements for IE before 9, get a <video> element for fullscreen detection
for (i=0; i<html5Elements.length; i++) {
v = document.createElement(html5Elements[i]);
}
t.supportsMediaTag = (typeof v.canPlayType !== 'undefined' || t.isBustedAndroid);
// Fix for IE9 on Windows 7N / Windows 7KN (Media Player not installer)
try{
v.canPlayType("video/mp4");
}catch(e){
t.supportsMediaTag = false;
}
t.supportsPointerEvents = (function() {
// TAKEN FROM MODERNIZR
var element = document.createElement('x'),
documentElement = document.documentElement,
getComputedStyle = window.getComputedStyle,
supports;
if(!('pointerEvents' in element.style)){
return false;
}
element.style.pointerEvents = 'auto';
element.style.pointerEvents = 'x';
documentElement.appendChild(element);
supports = getComputedStyle &&
getComputedStyle(element, '').pointerEvents === 'auto';
documentElement.removeChild(element);
return !!supports;
})();
// Older versions of Firefox can't move plugins around without it resetting,
t.hasFirefoxPluginMovingProblem = false;
// detect native JavaScript fullscreen (Safari/Firefox only, Chrome still fails)
// iOS
t.hasiOSFullScreen = (typeof v.webkitEnterFullscreen !== 'undefined');
// W3C
t.hasNativeFullscreen = (typeof v.requestFullscreen !== 'undefined');
// webkit/firefox/IE11+
t.hasWebkitNativeFullScreen = (typeof v.webkitRequestFullScreen !== 'undefined');
t.hasMozNativeFullScreen = (typeof v.mozRequestFullScreen !== 'undefined');
t.hasMsNativeFullScreen = (typeof v.msRequestFullscreen !== 'undefined');
t.hasTrueNativeFullScreen = (t.hasWebkitNativeFullScreen || t.hasMozNativeFullScreen || t.hasMsNativeFullScreen);
t.nativeFullScreenEnabled = t.hasTrueNativeFullScreen;
// Enabled?
if (t.hasMozNativeFullScreen) {
t.nativeFullScreenEnabled = document.mozFullScreenEnabled;
} else if (t.hasMsNativeFullScreen) {
t.nativeFullScreenEnabled = document.msFullscreenEnabled;
}
if (t.isChrome) {
t.hasiOSFullScreen = false;
}
if (t.hasTrueNativeFullScreen) {
t.fullScreenEventName = '';
if (t.hasWebkitNativeFullScreen) {
t.fullScreenEventName = 'webkitfullscreenchange';
} else if (t.hasMozNativeFullScreen) {
t.fullScreenEventName = 'mozfullscreenchange';
} else if (t.hasMsNativeFullScreen) {
t.fullScreenEventName = 'MSFullscreenChange';
}
t.isFullScreen = function() {
if (t.hasMozNativeFullScreen) {
return d.mozFullScreen;
} else if (t.hasWebkitNativeFullScreen) {
return d.webkitIsFullScreen;
} else if (t.hasMsNativeFullScreen) {
return d.msFullscreenElement !== null;
}
}
t.requestFullScreen = function(el) {
//TRIVANTIS TAG - LO-3050 make sure to update this block if we update mediaelement library
if (t.hasWebkitNativeFullScreen) {
if((window.location != window.parent.location))
myTop.document.body.webkitRequestFullScreen();
el.webkitRequestFullScreen();
} else if (t.hasMozNativeFullScreen) {
if((window.location != window.parent.location))
myTop.document.body.mozRequestFullScreen();
el.mozRequestFullScreen();
} else if (t.hasMsNativeFullScreen) {
if((window.location != window.parent.location))
myTop.document.body.msRequestFullscreen();
el.msRequestFullscreen();
}
}
t.cancelFullScreen = function() {
if (t.hasWebkitNativeFullScreen) {
if((window.location != window.parent.location))
myTop.document.webkitCancelFullScreen();
document.webkitCancelFullScreen();
} else if (t.hasMozNativeFullScreen) {
if((window.location != window.parent.location))
myTop.document.mozCancelFullScreen();
document.mozCancelFullScreen();
} else if (t.hasMsNativeFullScreen) {
if((window.location != window.parent.location))
myTop.document.msExitFullscreen();
document.msExitFullscreen();
}
}
}
// OS X 10.5 can't do this even if it says it can :(
if (t.hasiOSFullScreen && ua.match(/mac os x 10_5/i)) {
t.hasNativeFullScreen = false;
t.hasiOSFullScreen = false;
}
}
};
mejs.MediaFeatures.init();
/*
extension methods to <video> or <audio> object to bring it into parity with PluginMediaElement (see below)
*/
mejs.HtmlMediaElement = {
pluginType: 'native',
isFullScreen: false,
setCurrentTime: function (time) {
this.currentTime = time;
},
setMuted: function (muted) {
this.muted = muted;
},
setVolume: function (volume) {
this.volume = volume;
},
// for parity with the plugin versions
stop: function () {
this.pause();
},
// This can be a url string
// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
setSrc: function (url) {
// Fix for IE9 which can't set .src when there are <source> elements. Awesome, right?
var
existingSources = this.getElementsByTagName('source');
while (existingSources.length > 0){
this.removeChild(existingSources[0]);
}
if (typeof url == 'string') {
this.src = url;
} else {
var i, media;
for (i=0; i<url.length; i++) {
media = url[i];
if (this.canPlayType(media.type)) {
this.src = media.src;
break;
}
}
}
},
setVideoSize: function (width, height) {
this.width = width;
this.height = height;
}
};
/*
Mimics the <video/audio> element by calling Flash's External Interface or Silverlights [ScriptableMember]
*/
mejs.PluginMediaElement = function (pluginid, pluginType, mediaUrl) {
this.id = pluginid;
this.pluginType = pluginType;
this.src = mediaUrl;
this.events = {};
this.attributes = {};
};
// JavaScript values and ExternalInterface methods that match HTML5 video properties methods
// http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/fl/video/FLVPlayback.html
// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
mejs.PluginMediaElement.prototype = {
// special
pluginElement: null,
pluginType: '',
isFullScreen: false,
// not implemented :(
playbackRate: -1,
defaultPlaybackRate: -1,
seekable: [],
played: [],
// HTML5 read-only properties
paused: true,
ended: false,
seeking: false,
duration: 0,
error: null,
tagName: '',
// HTML5 get/set properties, but only set (updated by event handlers)
muted: false,
volume: 1,
currentTime: 0,
// HTML5 methods
play: function () {
if (this.pluginApi != null) {
if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
this.pluginApi.playVideo();
} else {
this.pluginApi.playMedia();
}
this.paused = false;
}
},
load: function () {
if (this.pluginApi != null) {
if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
} else {
this.pluginApi.loadMedia();
}
this.paused = false;
}
},
pause: function () {
if (this.pluginApi != null) {
if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
this.pluginApi.pauseVideo();
} else {
this.pluginApi.pauseMedia();
}
this.paused = true;
}
},
stop: function () {
if (this.pluginApi != null) {
if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
this.pluginApi.stopVideo();
} else {
this.pluginApi.stopMedia();
}
this.paused = true;
}
},
canPlayType: function(type) {
var i,
j,
pluginInfo,
pluginVersions = mejs.plugins[this.pluginType];
for (i=0; i<pluginVersions.length; i++) {
pluginInfo = pluginVersions[i];
// test if user has the correct plugin version
if (mejs.PluginDetector.hasPluginVersion(this.pluginType, pluginInfo.version)) {
// test for plugin playback types
for (j=0; j<pluginInfo.types.length; j++) {
// find plugin that can play the type
if (type == pluginInfo.types[j]) {
return 'probably';
}
}
}
}
return '';
},
positionFullscreenButton: function(x,y,visibleAndAbove) {
if (this.pluginApi != null && this.pluginApi.positionFullscreenButton) {
this.pluginApi.positionFullscreenButton(Math.floor(x),Math.floor(y),visibleAndAbove);
}
},
hideFullscreenButton: function() {
if (this.pluginApi != null && this.pluginApi.hideFullscreenButton) {
this.pluginApi.hideFullscreenButton();
}
},
// custom methods since not all JavaScript implementations support get/set
// This can be a url string
// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
setSrc: function (url) {
if (typeof url == 'string') {
this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(url));
this.src = mejs.Utility.absolutizeUrl(url);
} else {
var i, media;
for (i=0; i<url.length; i++) {
media = url[i];
if (this.canPlayType(media.type)) {
this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(media.src));
this.src = mejs.Utility.absolutizeUrl(media.src);
break;
}
}
}
},
setCurrentTime: function (time) {
if (this.pluginApi != null) {
if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
this.pluginApi.seekTo(time);
} else {
this.pluginApi.setCurrentTime(time);
}
this.currentTime = time;
}
},
setVolume: function (volume) {
if (this.pluginApi != null) {
// same on YouTube and MEjs
if (this.pluginType == 'youtube') {
this.pluginApi.setVolume(volume * 100);
} else {
this.pluginApi.setVolume(volume);
}
this.volume = volume;
}
},
setMuted: function (muted) {
if (this.pluginApi != null) {
if (this.pluginType == 'youtube') {
if (muted) {
this.pluginApi.mute();
} else {
this.pluginApi.unMute();
}
this.muted = muted;
this.dispatchEvent({type:'volumechange'});
} else {
this.pluginApi.setMuted(muted);
}
this.muted = muted;
}
},
// additional non-HTML5 methods
setVideoSize: function (width, height) {
//if (this.pluginType == 'flash' || this.pluginType == 'silverlight') {
if (this.pluginElement && this.pluginElement.style) {
this.pluginElement.style.width = width + 'px';
this.pluginElement.style.height = height + 'px';
}
if (this.pluginApi != null && this.pluginApi.setVideoSize) {
this.pluginApi.setVideoSize(width, height);
}
//}
},
setFullscreen: function (fullscreen) {
if (this.pluginApi != null && this.pluginApi.setFullscreen) {
this.pluginApi.setFullscreen(fullscreen);
}
},
enterFullScreen: function() {
if (this.pluginApi != null && this.pluginApi.setFullscreen) {
this.setFullscreen(true);
}
},
exitFullScreen: function() {
if (this.pluginApi != null && this.pluginApi.setFullscreen) {
this.setFullscreen(false);
}
},
// start: fake events
addEventListener: function (eventName, callback, bubble) {
this.events[eventName] = this.events[eventName] || [];
this.events[eventName].push(callback);
},
removeEventListener: function (eventName, callback) {
if (!eventName) { this.events = {}; return true; }
var callbacks = this.events[eventName];
if (!callbacks) return true;
if (!callback) { this.events[eventName] = []; return true; }
for (var i = 0; i < callbacks.length; i++) {
if (callbacks[i] === callback) {
this.events[eventName].splice(i, 1);
return true;
}
}
return false;
},
dispatchEvent: function (event) {
var i,
args,
callbacks = this.events[event.type];
if (callbacks) {
for (i = 0; i < callbacks.length; i++) {
callbacks[i].apply(this, [event]);
}
}
},
// end: fake events
// fake DOM attribute methods
hasAttribute: function(name){
return (name in this.attributes);
},
removeAttribute: function(name){
delete this.attributes[name];
},
getAttribute: function(name){
if (this.hasAttribute(name)) {
return this.attributes[name];
}
return '';
},
setAttribute: function(name, value){
this.attributes[name] = value;
},
remove: function() {
mejs.Utility.removeSwf(this.pluginElement.id);
mejs.MediaPluginBridge.unregisterPluginElement(this.pluginElement.id);
}
};
// Handles calls from Flash/Silverlight and reports them as native <video/audio> events and properties
mejs.MediaPluginBridge = {
pluginMediaElements:{},
htmlMediaElements:{},
registerPluginElement: function (id, pluginMediaElement, htmlMediaElement) {
this.pluginMediaElements[id] = pluginMediaElement;
this.htmlMediaElements[id] = htmlMediaElement;
},
unregisterPluginElement: function (id) {
delete this.pluginMediaElements[id];
delete this.htmlMediaElements[id];
},
// when Flash/Silverlight is ready, it calls out to this method
initPlugin: function (id) {
var pluginMediaElement = this.pluginMediaElements[id],
htmlMediaElement = this.htmlMediaElements[id];
if (pluginMediaElement) {
// find the javascript bridge
switch (pluginMediaElement.pluginType) {
case "flash":
pluginMediaElement.pluginElement = pluginMediaElement.pluginApi = document.getElementById(id);
break;
case "silverlight":
pluginMediaElement.pluginElement = document.getElementById(pluginMediaElement.id);
pluginMediaElement.pluginApi = pluginMediaElement.pluginElement.Content.MediaElementJS;
break;
}
if (pluginMediaElement.pluginApi != null && pluginMediaElement.success) {
pluginMediaElement.success(pluginMediaElement, htmlMediaElement);
}
}
},
// receives events from Flash/Silverlight and sends them out as HTML5 media events
// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
fireEvent: function (id, eventName, values) {
var
e,
i,
bufferedTime,
pluginMediaElement = this.pluginMediaElements[id];
if(!pluginMediaElement){
return;
}
// fake event object to mimic real HTML media event.
e = {
type: eventName,
target: pluginMediaElement
};
// attach all values to element and event object
for (i in values) {
pluginMediaElement[i] = values[i];
e[i] = values[i];
}
// fake the newer W3C buffered TimeRange (loaded and total have been removed)
bufferedTime = values.bufferedTime || 0;
e.target.buffered = e.buffered = {
start: function(index) {
return 0;
},
end: function (index) {
return bufferedTime;
},
length: 1
};
pluginMediaElement.dispatchEvent(e);
}
};
/*
Default options
*/
mejs.MediaElementDefaults = {
// allows testing on HTML5, flash, silverlight
// auto: attempts to detect what the browser can do
// auto_plugin: prefer plugins and then attempt native HTML5
// native: forces HTML5 playback
// shim: disallows HTML5, will attempt either Flash or Silverlight
// none: forces fallback view