plugins/org.eclipse.actf.examples.scripteditor/resources/scripts/vd-compat.js - actf/org.eclipse.actf.examples - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009, 2015 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *    IBM Corporation - initial API and implementation
  *******************************************************************************/
 //
 // Ad-hoc codes to bridge the gap between the HTML5 spec and browser implementations
 //
 if (true) { // if (typeof TextTrack == 'undefined') { // As of Mar 2015, no major browser sufficiently supports TextTrack.
   (function () {
     TextTrack = function (kind, label, language) { // See: http://www.w3.org/TR/html5/embedded-content-0.html#texttrack
       this.kind = kind;
       this.label = label;
       this.language = language;
       this.mode = TextTrack.HIDDEN;
       this.cues = new TextTrackCueList();
       this.activeCues = new TextTrackCueList();
     };

     TextTrack.DISABLED = 0;
     TextTrack.HIDDEN = 1;
     TextTrack.SHOWING = 2;

     TextTrack.prototype.addCue = function (cue) {
       cue.track = cue.__track__ = this;
       this.cues.__addCue__(cue);
     };

     TextTrack.prototype.removeCue = function (cue) {
       cue.track = cue.__track__ = null;
       this.cues.__removeCue__(cue);
     };

     TextTrack.prototype.toString = function () {
       return 'TextTrack <' + this.kind + '> ' + this.label + ' (' + this.language + ') : ' + this.cues;
     };

     TextTrackList = function () { // See: http://www.w3.org/TR/html5/embedded-content-0.html#texttracklist
       var list = [];

       list.getTrackById = function (id) {
         for (var i = 0; i < this.length; ++i) {
           var e = this[i];

           if (e.id == id) {
             return e;
           }
         }

         return null;
       };

       list.toString = function () {
         return 'TextTrackList [\n\t' + this.join(',\n\t') + '\n]';
       };

       return list;
     };

     TextTrackCue = function (startTime, endTime, text) { // See: http://www.w3.org/TR/html5/embedded-content-0.html#texttrackcue
       if (typeof VTTCue != 'undefined') {
         return new VTTCue(startTime, endTime, text);
       }
       else {
         this.startTime = startTime;
         this.endTime = endTime;
         this.text = text;
       }
     };

     TextTrackCue.prototype.toString = function () {
       return 'TextTrackCue <' + this.id + '> ' + this.startTime + ' -> ' + this.endTime + ' : ' + this.text + (this.pauseOnExit ? ' * pause-on-exit * ' : ' ');
     };

     TextTrackCueList = function () { // See: http://www.w3.org/TR/html5/embedded-content-0.html#texttrackcuelist
       var list = [];

       list.getCueById = function (id) {
         for (var i = 0; i < this.length; ++i) {
           var e = this[i];

           if (e.id == id) {
             return e;
           }
         }

         return null;
       };

       list.__addCue__ = function (cue) {
         this.push(cue);
       };

       list.__removeCue__ = function (cue) {
         for (var i = 0; i < this.length; ++i) {
           if (this[i] === cue) {
             this.splice(i--, 1);
           }
         }
       };

       list.toString = function () {
         return 'TextTrackCueList [\n\t' + this.join(',\n\t') + '\n]';
       };

       return list;
     };

     var fixMediaElement = function (m) {
       m.textTracks = m.__textTracks__ = new TextTrackList();
       m.addTextTrack = m.__addTextTrack__ = addTextTrack;
       m.__lastTime__ = m.currentTime;
       m.addEventListener('timeupdate', updateCues, false);
       m.addEventListener('seeked', updateCues, false);
     };

     var fixTrackElement = function (t) {
       t.kind = t.getAttribute('kind');
       t.src = t.getAttribute('src');
       t.srclang = t.getAttribute('srclang');
       t.label = t.getAttribute('label');
       t['default'] = t.getAttribute('default') != null; // .default causes an error in IE

       if (!t.dataset) {
         var d = {};
         var a = t.attributes;

         for (var i = 0; i < a.length; ++i) {
           if (a[i].name.indexOf('data-') == 0) {
             d[a[i].name.substr(5)] = a[i].value;
           }
         }

         t.dataset = d;
       }
     };

     var addTextTrack = function (kind, label, language) { // HTMLMediaElement#addTextTrack
       var t = new TextTrack(kind, label, language);
       this.__textTracks__.push(t);
       return t;
     };

     var updateCues = function (e) { // http://dev.w3.org/html5/spec/media-elements.html#media-playback
       var video = e.target;

       var currentTime = video.currentTime;
       var lastTime = video.__lastTime__; video.__lastTime__ = currentTime;
       var isMonotonicIncrease = currentTime > lastTime && currentTime <= lastTime + .5; // major browsers fire timeupdate events every 250 ms

       var currentCues = [];
       var otherCues = [];
       var conflicted = false;

       var tracks = video.__textTracks__;

       for (var i = 0; i < tracks.length; ++i) {
         var t = tracks[i];

         if (t.mode != TextTrack.DISABLED) {
           var cues = t.cues;

           for (var j = 0; j < cues.length; ++j) {
             var c = cues[j];

             if (c.startTime <= currentTime && c.endTime > currentTime) {
               currentCues.push(c);
               c.__missed__ = false;
               conflicted = conflicted || !c.__active__;
             }
             else {
               otherCues.push(c);
               c.__missed__ = isMonotonicIncrease && c.startTime >= lastTime && c.endTime <= currentTime;
               conflicted = conflicted || c.__active__ || c.__missed__;
             }
           }
         }
       }

       if (!conflicted) {
         return;
       }

       var events = [];

       for (var i = 0; i < otherCues.length; ++i) {
         var c = otherCues[i];

         if (c.pauseOnExit && (c.__active__ || c.__missed__)) {
           video.pause();
         }

         if (c.__missed__) {
           events.push({ type: 'enter', timeStamp: c.startTime, target: c });
         }

         if (c.__active__ || c.__missed__) {
           events.push({ type: 'exit', timeStamp: c.endTime, target: c });
         }

         c.__active__ = false;
         c.__track__.activeCues.__removeCue__(c);
       }

       for (var i = 0; i < currentCues.length; ++i) {
         var c = currentCues[i];

         if (!c.__active__) {
           events.push({ type: 'enter', timeStamp: c.startTime, target: c });
         }

         c.__active__ = true;
         c.__track__.activeCues.__addCue__(c);
       }

       events.sort(function (a, b) { return a.timeStamp - b.timeStamp });

       for (var i = 0; i < events.length; ++i) {
         var e = events[i];
         var f = e.target['on' + e.type];

         if (f) {
           f.call(e.target, e);
         }
       }
     };

     var videoElems = document.getElementsByTagName('video');

     for (var i = 0; i < videoElems.length; ++i) {
       fixMediaElement(videoElems[i]);
     }

     var audioElems = document.getElementsByTagName('audio');

     for (var i = 0; i < audioElems.length; ++i) {
       fixMediaElement(audioElems[i]);
     }

     var trackElems = document.getElementsByTagName('track');

     for (var i = 0; i < trackElems.length; ++i) {
       var t = trackElems[i];
       fixTrackElement(t);
       t.track = t.__track__ = t.parentNode.__addTextTrack__(t.kind, t.label, t.srclang);
     }
   })();
 }

 if (true) { // if (typeof MediaController == 'undefined') { // As of Mar 2015, no major browser sufficiently supports MediaController.
   (function () {
     MediaController = function () {}; // See: http://www.w3.org/TR/html5/embedded-content-0.html#mediacontroller

     MediaController.prototype.__syncTime__ = function (kicker) {
       if (kicker.__seekedForSync__) {
         kicker.__seekedForSync__ = false;
         return;
       }

       var slaveElems = getSlaveElementsOf(this);
       var currentTime = kicker.currentTime;

       for (var i = 0; i < slaveElems.length; ++i) {
         var s = slaveElems[i];

         if (s !== kicker) {
           s.__seekedForSync__ = true;
           s.currentTime = currentTime;
         }
       }
     };

     MediaController.prototype.__syncPlayback__ = function (kicker) {
       var slaveElems = getSlaveElementsOf(this);
       var readyState = 0;
       var paused = false;

       for (var i = 0; i < slaveElems.length; ++i) {
         var s = slaveElems[i];
         readyState = Math.max(readyState, s.readyState);
         paused = paused || s.ended || (s.paused && !s.__pausedForSync__);
       }

       this.readyState = readyState;
       this.paused = paused || readyState < 4; // < HAVE_ENOUGH_DATA

       for (var i = 0; i < slaveElems.length; ++i) {
         var s = slaveElems[i];

         if (this.paused) {
           if (!s.paused) {
             s.__pausedForSync__ = true;
             s.pause();
           }
           else {

           }
         }
         else {
           if (s.paused) {
             s.__pausedForSync__ = false;
             s.play();
           }
           else {
             s.__pausedForSync__ = false;
           }
         }
       }
     };

     var getSlaveElementsOf = function (controller) {
       var videoElems = document.getElementsByTagName('video');
       var audioElems = document.getElementsByTagName('audio');
       var slaveElems = [];

       for (var i = 0; i < videoElems.length; ++i) {
         var v = videoElems[i];

         if (v.controller === controller) {
           slaveElems.push(v);
         }
       }

       for (var i = 0; i < audioElems.length; ++i) {
         var a = audioElems[i];

         if (a.controller === controller) {
           slaveElems.push(a);
         }
       }

       return slaveElems;
     };

     var controllers = {};

     var fixMediaElement = function (m) {
       m.mediaGroup = m.getAttribute('mediagroup');

       if (!m.mediaGroup) {
         return;
       }

       m.controller = controllers[m.mediaGroup] || (controllers[m.mediaGroup] = new MediaController());
       m.addEventListener('seeked', syncTime, false);
       m.addEventListener('seeked', syncPlayback, false);
       m.addEventListener('playing', syncPlayback, false);
       m.addEventListener('waiting', syncPlayback, false);
       m.addEventListener('pause', syncPlayback, false);
       m.addEventListener('ended', syncPlayback, false);
       m.__pausedForSync__ = true;
     };

     var syncTime = function (e) {
       e.target.controller.__syncTime__(e.target);
     };

     var syncPlayback = function (e) {
       e.target.controller.__syncPlayback__(e.target);
     };

     var videoElems = document.getElementsByTagName('video');

     for (var i = 0; i < videoElems.length; ++i) {
       fixMediaElement(videoElems[i]);
     }

     var audioElems = document.getElementsByTagName('audio');

     for (var i = 0; i < audioElems.length; ++i) {
       fixMediaElement(audioElems[i]);
     }
   })();
 }
	/*******************************************************************************
	* Copyright (c) 2009, 2015 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	//
	// Ad-hoc codes to bridge the gap between the HTML5 spec and browser implementations
	//
	if (true) { // if (typeof TextTrack == 'undefined') { // As of Mar 2015, no major browser sufficiently supports TextTrack.
	(function () {
	TextTrack = function (kind, label, language) { // See: http://www.w3.org/TR/html5/embedded-content-0.html#texttrack
	this.kind = kind;
	this.label = label;
	this.language = language;
	this.mode = TextTrack.HIDDEN;
	this.cues = new TextTrackCueList();
	this.activeCues = new TextTrackCueList();
	};

	TextTrack.DISABLED = 0;
	TextTrack.HIDDEN = 1;
	TextTrack.SHOWING = 2;

	TextTrack.prototype.addCue = function (cue) {
	cue.track = cue.__track__ = this;
	this.cues.__addCue__(cue);
	};

	TextTrack.prototype.removeCue = function (cue) {
	cue.track = cue.__track__ = null;
	this.cues.__removeCue__(cue);
	};

	TextTrack.prototype.toString = function () {
	return 'TextTrack <' + this.kind + '> ' + this.label + ' (' + this.language + ') : ' + this.cues;
	};

	TextTrackList = function () { // See: http://www.w3.org/TR/html5/embedded-content-0.html#texttracklist
	var list = [];

	list.getTrackById = function (id) {
	for (var i = 0; i < this.length; ++i) {
	var e = this[i];

	if (e.id == id) {
	return e;
	}
	}

	return null;
	};

	list.toString = function () {
	return 'TextTrackList [\n\t' + this.join(',\n\t') + '\n]';
	};

	return list;
	};

	TextTrackCue = function (startTime, endTime, text) { // See: http://www.w3.org/TR/html5/embedded-content-0.html#texttrackcue
	if (typeof VTTCue != 'undefined') {
	return new VTTCue(startTime, endTime, text);
	}
	else {
	this.startTime = startTime;
	this.endTime = endTime;
	this.text = text;
	}
	};

	TextTrackCue.prototype.toString = function () {
	return 'TextTrackCue <' + this.id + '> ' + this.startTime + ' -> ' + this.endTime + ' : ' + this.text + (this.pauseOnExit ? ' * pause-on-exit * ' : ' ');
	};

	TextTrackCueList = function () { // See: http://www.w3.org/TR/html5/embedded-content-0.html#texttrackcuelist
	var list = [];

	list.getCueById = function (id) {
	for (var i = 0; i < this.length; ++i) {
	var e = this[i];

	if (e.id == id) {
	return e;
	}
	}

	return null;
	};

	list.__addCue__ = function (cue) {
	this.push(cue);
	};

	list.__removeCue__ = function (cue) {
	for (var i = 0; i < this.length; ++i) {
	if (this[i] === cue) {
	this.splice(i--, 1);
	}
	}
	};

	list.toString = function () {
	return 'TextTrackCueList [\n\t' + this.join(',\n\t') + '\n]';
	};

	return list;
	};

	var fixMediaElement = function (m) {
	m.textTracks = m.__textTracks__ = new TextTrackList();
	m.addTextTrack = m.__addTextTrack__ = addTextTrack;
	m.__lastTime__ = m.currentTime;
	m.addEventListener('timeupdate', updateCues, false);
	m.addEventListener('seeked', updateCues, false);
	};

	var fixTrackElement = function (t) {
	t.kind = t.getAttribute('kind');
	t.src = t.getAttribute('src');
	t.srclang = t.getAttribute('srclang');
	t.label = t.getAttribute('label');
	t['default'] = t.getAttribute('default') != null; // .default causes an error in IE

	if (!t.dataset) {
	var d = {};
	var a = t.attributes;

	for (var i = 0; i < a.length; ++i) {
	if (a[i].name.indexOf('data-') == 0) {
	d[a[i].name.substr(5)] = a[i].value;
	}
	}

	t.dataset = d;
	}
	};

	var addTextTrack = function (kind, label, language) { // HTMLMediaElement#addTextTrack
	var t = new TextTrack(kind, label, language);
	this.__textTracks__.push(t);
	return t;
	};

	var updateCues = function (e) { // http://dev.w3.org/html5/spec/media-elements.html#media-playback
	var video = e.target;

	var currentTime = video.currentTime;
	var lastTime = video.__lastTime__; video.__lastTime__ = currentTime;
	var isMonotonicIncrease = currentTime > lastTime && currentTime <= lastTime + .5; // major browsers fire timeupdate events every 250 ms

	var currentCues = [];
	var otherCues = [];
	var conflicted = false;

	var tracks = video.__textTracks__;

	for (var i = 0; i < tracks.length; ++i) {
	var t = tracks[i];

	if (t.mode != TextTrack.DISABLED) {
	var cues = t.cues;

	for (var j = 0; j < cues.length; ++j) {
	var c = cues[j];

	if (c.startTime <= currentTime && c.endTime > currentTime) {
	currentCues.push(c);
	c.__missed__ = false;
	conflicted = conflicted \|\| !c.__active__;
	}
	else {
	otherCues.push(c);
	c.__missed__ = isMonotonicIncrease && c.startTime >= lastTime && c.endTime <= currentTime;
	conflicted = conflicted \|\| c.__active__ \|\| c.__missed__;
	}
	}
	}
	}

	if (!conflicted) {
	return;
	}

	var events = [];

	for (var i = 0; i < otherCues.length; ++i) {
	var c = otherCues[i];

	if (c.pauseOnExit && (c.__active__ \|\| c.__missed__)) {
	video.pause();
	}

	if (c.__missed__) {
	events.push({ type: 'enter', timeStamp: c.startTime, target: c });
	}

	if (c.__active__ \|\| c.__missed__) {
	events.push({ type: 'exit', timeStamp: c.endTime, target: c });
	}

	c.__active__ = false;
	c.__track__.activeCues.__removeCue__(c);
	}

	for (var i = 0; i < currentCues.length; ++i) {
	var c = currentCues[i];

	if (!c.__active__) {
	events.push({ type: 'enter', timeStamp: c.startTime, target: c });
	}

	c.__active__ = true;
	c.__track__.activeCues.__addCue__(c);
	}

	events.sort(function (a, b) { return a.timeStamp - b.timeStamp });

	for (var i = 0; i < events.length; ++i) {
	var e = events[i];
	var f = e.target['on' + e.type];

	if (f) {
	f.call(e.target, e);
	}
	}
	};

	var videoElems = document.getElementsByTagName('video');

	for (var i = 0; i < videoElems.length; ++i) {
	fixMediaElement(videoElems[i]);
	}

	var audioElems = document.getElementsByTagName('audio');

	for (var i = 0; i < audioElems.length; ++i) {
	fixMediaElement(audioElems[i]);
	}

	var trackElems = document.getElementsByTagName('track');

	for (var i = 0; i < trackElems.length; ++i) {
	var t = trackElems[i];
	fixTrackElement(t);
	t.track = t.__track__ = t.parentNode.__addTextTrack__(t.kind, t.label, t.srclang);
	}
	})();
	}

	if (true) { // if (typeof MediaController == 'undefined') { // As of Mar 2015, no major browser sufficiently supports MediaController.
	(function () {
	MediaController = function () {}; // See: http://www.w3.org/TR/html5/embedded-content-0.html#mediacontroller

	MediaController.prototype.__syncTime__ = function (kicker) {
	if (kicker.__seekedForSync__) {
	kicker.__seekedForSync__ = false;
	return;
	}

	var slaveElems = getSlaveElementsOf(this);
	var currentTime = kicker.currentTime;

	for (var i = 0; i < slaveElems.length; ++i) {
	var s = slaveElems[i];

	if (s !== kicker) {
	s.__seekedForSync__ = true;
	s.currentTime = currentTime;
	}
	}
	};

	MediaController.prototype.__syncPlayback__ = function (kicker) {
	var slaveElems = getSlaveElementsOf(this);
	var readyState = 0;
	var paused = false;

	for (var i = 0; i < slaveElems.length; ++i) {
	var s = slaveElems[i];
	readyState = Math.max(readyState, s.readyState);
	paused = paused \|\| s.ended \|\| (s.paused && !s.__pausedForSync__);
	}

	this.readyState = readyState;
	this.paused = paused \|\| readyState < 4; // < HAVE_ENOUGH_DATA

	for (var i = 0; i < slaveElems.length; ++i) {
	var s = slaveElems[i];

	if (this.paused) {
	if (!s.paused) {
	s.__pausedForSync__ = true;
	s.pause();
	}
	else {

	}
	}
	else {
	if (s.paused) {
	s.__pausedForSync__ = false;
	s.play();
	}
	else {
	s.__pausedForSync__ = false;
	}
	}
	}
	};

	var getSlaveElementsOf = function (controller) {
	var videoElems = document.getElementsByTagName('video');
	var audioElems = document.getElementsByTagName('audio');
	var slaveElems = [];

	for (var i = 0; i < videoElems.length; ++i) {
	var v = videoElems[i];

	if (v.controller === controller) {
	slaveElems.push(v);
	}
	}

	for (var i = 0; i < audioElems.length; ++i) {
	var a = audioElems[i];

	if (a.controller === controller) {
	slaveElems.push(a);
	}
	}

	return slaveElems;
	};

	var controllers = {};

	var fixMediaElement = function (m) {
	m.mediaGroup = m.getAttribute('mediagroup');

	if (!m.mediaGroup) {
	return;
	}

	m.controller = controllers[m.mediaGroup] \|\| (controllers[m.mediaGroup] = new MediaController());
	m.addEventListener('seeked', syncTime, false);
	m.addEventListener('seeked', syncPlayback, false);
	m.addEventListener('playing', syncPlayback, false);
	m.addEventListener('waiting', syncPlayback, false);
	m.addEventListener('pause', syncPlayback, false);
	m.addEventListener('ended', syncPlayback, false);
	m.__pausedForSync__ = true;
	};

	var syncTime = function (e) {
	e.target.controller.__syncTime__(e.target);
	};

	var syncPlayback = function (e) {
	e.target.controller.__syncPlayback__(e.target);
	};

	var videoElems = document.getElementsByTagName('video');

	for (var i = 0; i < videoElems.length; ++i) {
	fixMediaElement(videoElems[i]);
	}

	var audioElems = document.getElementsByTagName('audio');

	for (var i = 0; i < audioElems.length; ++i) {
	fixMediaElement(audioElems[i]);
	}
	})();
	}