/** @language english
* <p>The LMedia class is the base class for LSound object and LVideo object.</p>
* <p>LMedia is an abstract base class; therefore, you cannot call LMedia directly. </p>
* <p>The LMedia class is an abstract base class for all objects that can contain child objects. It cannot be instantiated directly.</p>
* @class LMedia
* @extends LDisplayObject
* @constructor
* @since 1.7.0
* @public
*/
var LMedia = (function () {
function LMedia () {
var s = this;
LExtends(s, LDisplayObject, []);
/** @language english
* The length of LSound object or LVideo object
* @property length
* @type int
* @since 1.7.0
* @public
*/
s.length = 0;
s.loopIndex = 0;
s.loopLength = 1;
/** @language english
* The LSound object or LVideo object is playing.
* @property playing
* @type Boolean
* @since 1.7.0
* @public
*/
s.playing = false;
s.oncomplete = null;
s.onsoundcomplete = null;
s.currentStart = 0;
LSound.Container.add(this);
}
var p = {
onload : function () {
var s = this;
if (s.data.readyState) {
s.length = s.data.duration - (LGlobal.android ? 0.1 : 0);
var e = new LEvent(LEvent.COMPLETE);
e.currentTarget = s;
e.target = s.data;
s.dispatchEvent(e);
return;
}
s.data.addEventListener("canplaythrough", function () {
s.onload();
}, false);
},
_onended : function () {
var s = this, i, l;
if (s.data.ended) {
s.dispatchEvent(LEvent.SOUND_COMPLETE);
}
if (++s.loopIndex < s.loopLength) {
i = s.loopIndex;
l = s.loopLength;
s.close();
s.play(s.currentStart, s.loopLength, s.currentTimeTo);
s.loopIndex = i;
} else {
s.close();
}
},
/** @language english
* <p>Initiates loading of an external media file from the specified URL. </p>
* <p>To support different browsers, you can look like this</p>
* <p>medio.load("medias/a.mp3,medias/a.wav,medias/a.ogg");</p>
* @method load
* @param {String} url A URL that points to an external media file.
* @since 1.7.0
* @public
*/
load : function (u) {
var s = this;
if (Object.prototype.toString.apply(u) == "[object HTMLAudioElement]") {
s.data = u;
s.onload();
return;
}
var a, b, c, k, d, q = {"mov" : ["quicktime"], "3gp" : ["3gpp"], "ogv" : ["ogg"], "m4a" : ["mpeg"], "mp3" : ["mpeg"], "wav" : ["wav", "x-wav", "wave"], "wave" : ["wav", "x-wav", "wave"], "aac" : ["mp4"]};
a = u.split(',');
for (k in a) {
b = a[k].split('.');
d = b[b.length - 1];
if (q[d]) {
d = q[d];
} else {
d = [d];
}
c = d.some(function (element, index, array) {
return s.data.canPlayType(s._type + "/" + element);
});
if (c) {
s.data.src = a[k];
s.onload();
s.data.load();
return;
}
}
if (s.oncomplete) {
s.oncomplete({});
}
},
/** @language english
* <p>Get the time of reproducing.</p>
* @method getCurrentTime
* @return {int} the time of reproducing.
* @since 1.7.0
* @public
*/
getCurrentTime : function () {
return this.data.currentTime;
},
/** @language english
* <p>Set the volume of media.</p>
* @method setVolume
* @param {float} value the volume。
* @since 1.7.0
* @public
*/
setVolume : function (v) {
this.data.volume = v;
},
/** @language english
* <p>Get the volume of media.</p>
* @method getVolume
* @return {float} the volume.
* @since 1.7.0
* @public
*/
getVolume : function () {
return this.data.volume;
},
/** @language english
* <p>play the media file.</p>
* @method play
* @param {float} startTime The initial position in milliseconds at which playback should start.
* @param {int} loops Defines the number of times a sound loops back to the startTime value before the sound channel stops playback.
* @since 1.7.0
* @public
*/
play : function (c, l, to) {
var s = this;
if (s.length == 0) {
return;
}
if (typeof c != UNDEFINED) {
s.data.currentTime = c;
s.currentStart = c;
}
if (typeof l != UNDEFINED) {
s.loopLength = l;
}
if (typeof to !== UNDEFINED) {
s.currentTimeTo = to > s.length ? s.length : to;
} else {
s.currentTimeTo = s.length;
}
if (s.timeout) {
clearTimeout(s.timeout);
delete s.timeout;
}
s.timeout = setTimeout(function(){
s._onended();
}, (s.currentTimeTo - s.data.currentTime) * 1000);
s.data.loop = false;
s.loopIndex = 0;
s.playing = true;
s.data.play();
},
/** @language english
* <p>play segment of audio.</p>
* @method playSegment
* @param {float} startTime The initial position in milliseconds at which playback should start.
* @param {float} segment length。
* @param {int} loops Defines the number of times a sound loops back to the startTime value before the sound channel stops playback.
* @since 1.9.0
* @public
*/
playSegment : function (c, seg, l) {
this.playTo(c, c + seg, l);
},
/** @language english
* <p>play segment of audio.</p>
* @method playTo
* @param {float} startTime start time.
* @param {float} endTime end time.
* @param {int} loops Defines the number of times a sound loops back to the startTime value before the sound channel stops playback.
* @since 1.9.0
* @public
*/
playTo : function (c, to, l) {
this.play(c, l, to);
},
/** @language english
* <p>Pauses the currently playing audio/video.</p>
* @method stop
* @since 1.7.0
* @public
*/
stop : function () {
var s = this;
if (!s.playing) {
return;
}
if (s.timeout) {
clearTimeout(s.timeout);
delete s.timeout;
}
s.playing = false;
s.data.pause();
},
/** @language english
* <p>Close the currently playing audio/video.</p>
* @method close
* @since 1.7.0
* @public
*/
close : function () {
var s = this;
if (!s.playing) {
return;
}
if (s.timeout) {
clearTimeout(s.timeout);
delete s.timeout;
}
s.playing = false;
s.data.pause();
s.data.currentTime = 0;
s.currentSave = 0;
},
ll_check : function () {
var s = this;
if (!s.playing) {
return;
}
if (s.currentTimeTo < s.data.currentTime + LSound.Container.time * 0.005) {
s._onended();
}
},
die : function () {
LSound.Container.remove(this);
}
};
for (var k in p) {
LMedia.prototype[k] = p[k];
}
return LMedia;
})();
/** @language english
* when the media is loaded
* <p><a href="LEvent.html#property_COMPLETE">LEvent.COMPLETE</a></p>
* @event LEvent.COMPLETE
*/
