SlideShareWidget better management of container.
/* mediafragment module */
IriSP.MediaFragment = function(Popcorn, config, Serializer) {
IriSP.Module.call(this, Popcorn, config, Serializer);
this.mutex = false; /* a mutex because we access the url from two different functions */
this._Popcorn.listen( "loadedmetadata", IriSP.wrap(this,this.advanceTime));
this._Popcorn.listen( "pause", IriSP.wrap(this,this.updateTime));
this._Popcorn.listen( "seeked", IriSP.wrap(this,this.updateTime));
this._Popcorn.listen( "IriSP.PolemicTweet.click", IriSP.wrap(this,this.updateAnnotation));
this._Popcorn.listen( "IriSP.SegmentsWidget.click", IriSP.wrap(this,this.updateAnnotation));
window.onhashchange = IriSP.wrap(this, this.advanceTime);
};
IriSP.MediaFragment.prototype = new IriSP.Module();
IriSP.MediaFragment.prototype.advanceTime = function() {
var url = window.location.href;
if ( url.split( "#" )[ 1 ] != null ) {
pageoffset = url.split( "#" )[1];
if ( pageoffset.substring(0, 2) === "t=") {
// timecode
if ( pageoffset.substring( 2 ) != null ) {
var offsettime = pageoffset.substring( 2 );
this._Popcorn.currentTime( parseFloat(offsettime) );
/* we have to trigger this signal manually because of a
bug in the jwplayer */
this._Popcorn.trigger("seeked", parseFloat(offsettime));
}
} else if ( pageoffset.substring(0, 3) === "id=") {
// annotation
var annotationId = pageoffset.substring( 3 );
// there's no better way than that because
// of possible race conditions
this._serializer.sync(IriSP.wrap(this, function() {
this.lookupAnnotation.call(this, annotationId);
}));
}
}
};
/** handler for the seeked signal. It may have or may have not an argument.
@param time if not undefined, the time we're seeking to
*/
IriSP.MediaFragment.prototype.updateTime = function(time) {
if (this.mutex === true) {
return;
}
var history = window.history;
if ( !history.pushState ) {
return false;
}
if (IriSP.null_or_undefined(time) || typeof(time) != "number") {
var ntime = this._Popcorn.currentTime().toFixed(2)
} else {
var ntime = time.toFixed(2);
}
// used to relay the new hash to the embedder
this._Popcorn.trigger("IriSP.Mediafragment.hashchange", "#t=" + ntime);
splitArr = window.location.href.split( "#" )
history.replaceState( {}, "", splitArr[0] + "#t=" + ntime );
};
IriSP.MediaFragment.prototype.updateAnnotation = function(annotationId) {
var _this = this;
this.mutex = true;
var history = window.history;
if ( !history.pushState ) {
return false;
}
// used to relay the new hash to the embedder
this._Popcorn.trigger("IriSP.Mediafragment.hashchange", "#id=" + annotationId);
splitArr = window.location.href.split( "#" )
history.replaceState( {}, "", splitArr[0] + "#id=" + annotationId);
// reset the mutex afterwards to prevent the module from reacting to his own changes.
window.setTimeout(function() { _this.mutex = false }, 50);
};
// lookup and seek to the beginning of an annotation
IriSP.MediaFragment.prototype.lookupAnnotation = function(annotationId) {
var _this = this;
this.mutex = true;
var annotation = undefined;
var annotations = this._serializer._data.annotations;
var i;
for (i = 0; i < annotations.length; i++) {
if (annotations[i].id === annotationId) {
annotation = annotations[i];
break;
}
}
if (typeof(annotation) !== "undefined") {
this._Popcorn.currentTime(annotation.begin / 1000);
/* we have to trigger this signal manually because of a
bug in the jwplayer */
this._Popcorn.trigger("seeked", annotation.begin / 1000);
this._Popcorn.trigger("IriSP.Mediafragment.showAnnotation", annotationId);
}
window.setTimeout(function() { _this.mutex = false }, 50);
};