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Bug 858135 - Update LocalMediaStreamPlayback inheritance to use Object.create(). r=jesup

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This commit is contained in:
Henrik Skupin 2013-04-11 07:48:09 -04:00
parent e142faf203
commit 31cb07457a
1 changed files with 65 additions and 64 deletions
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129
dom/media/tests/mochitest/mediaStreamPlayback.js
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@ -174,72 +174,73 @@ function LocalMediaStreamPlayback(mediaElement, mediaStream) {
MediaStreamPlayback.call(this, mediaElement, mediaStream);
}
// Sets up the inheritance chain from LMSP --> MSP
LocalMediaStreamPlayback.prototype = new MediaStreamPlayback();
LocalMediaStreamPlayback.prototype.constructor = LocalMediaStreamPlayback;
/**
* Starts media with a media stream, runs it until a canplaythrough and
* timeupdate event fires, and calls stop() on the stream.
*
* @param {Boolean} isResume specifies if this media element is being resumed
* from a previous run
* @param {Function} onSuccess the success callback if the media element
* successfully fires ended on a stop() call
* on the stream
* @param {Function} onError the error callback if the media element fails
* to fire an ended callback on a stop() call
* on the stream
*/
LocalMediaStreamPlayback.prototype.playMediaWithStreamStop = function(
isResume, onSuccess, onError) {
var self = this;
this.startMedia(isResume, function() {
self.stopStreamInMediaPlayback(function() {
self.stopMediaElement();
onSuccess();
}, onError);
}, onError);
}
/**
* Stops the local media stream while it's currently in playback in
* a media element.
*
* Precondition: The media stream and element should both be actively
* being played.
*
* @param {Function} onSuccess the success callback if the media element
* fires an ended event from stop() being called
* @param {Function} onError the error callback if the media element
* fails to fire an ended event from stop() being
* called
*/
LocalMediaStreamPlayback.prototype.stopStreamInMediaPlayback = function(
onSuccess, onError) {
var endedFired = false;
var self = this;
LocalMediaStreamPlayback.prototype = Object.create(MediaStreamPlayback.prototype, {
/**
* Callback fired when the ended event fires when stop() is called on the
* stream.
* Starts media with a media stream, runs it until a canplaythrough and
* timeupdate event fires, and calls stop() on the stream.
*
* @param {Boolean} isResume specifies if this media element is being resumed
* from a previous run
* @param {Function} onSuccess the success callback if the media element
* successfully fires ended on a stop() call
* on the stream
* @param {Function} onError the error callback if the media element fails
* to fire an ended callback on a stop() call
* on the stream
*/
var endedCallback = function() {
endedFired = true;
self.mediaElement.removeEventListener('ended', endedCallback, false);
ok(true, "ended event successfully fired");
onSuccess();
};
playMediaWithStreamStop : {
value: function (isResume, onSuccess, onError) {
var self = this;
this.mediaElement.addEventListener('ended', endedCallback, false);
this.mediaStream.stop();
// If ended doesn't fire in enough time, then we fail the test
setTimeout(function() {
if (!endedFired) {
ok(false, "ended event never fired");
onError();
this.startMedia(isResume, function() {
self.stopStreamInMediaPlayback(function() {
self.stopMediaElement();
onSuccess();
}, onError);
}, onError);
}
}, TIMEOUT_LENGTH);
}
},
/**
* Stops the local media stream while it's currently in playback in
* a media element.
*
* Precondition: The media stream and element should both be actively
* being played.
*
* @param {Function} onSuccess the success callback if the media element
* fires an ended event from stop() being called
* @param {Function} onError the error callback if the media element
* fails to fire an ended event from stop() being
* called
*/
stopStreamInMediaPlayback : {
value: function (onSuccess, onError) {
var endedFired = false;
var self = this;
/**
* Callback fired when the ended event fires when stop() is called on the
* stream.
*/
var endedCallback = function() {
endedFired = true;
self.mediaElement.removeEventListener('ended', endedCallback, false);
ok(true, "ended event successfully fired");
onSuccess();
};
this.mediaElement.addEventListener('ended', endedCallback, false);
this.mediaStream.stop();
// If ended doesn't fire in enough time, then we fail the test
setTimeout(function() {
if (!endedFired) {
ok(false, "ended event never fired");
onError();
}
}, TIMEOUT_LENGTH);
}
}
});