Use ES6 Classes for Sound.

[sound.git] / sound.js

diff --git a/sound.js b/sound.js
index 8fcac31691dd2ad8bc57ef8eced6900e9cd5eaba..0db080c5f914bb4c40d828ca2951976564286822 100644 (file)
--- a/sound.js
+++ b/sound.js
@@ -1,4 +1,4 @@
-/* Copyright (c) 2014 Jer Noble
+/* Copyright (c) 2014-2016 Jer Noble

  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal


@@ -19,82 +19,50 @@
  * THE SOFTWARE.
  */
 
  * THE SOFTWARE.
  */
 

-function Sound(src) {
-
-    if (Sound.audioContext === undefined) {
-        var AudioContext = window.AudioContext || window.webkitAudioContext || window.mozAudioContext;
-        Sound.audioContext = new AudioContext();
-    }
-
-    this._networkState = this.NETWORK.EMPTY;
-    this._preload = this.PRELOAD.AUTO;
-    this._buffered = {};
-    this._readyState = this.READY.NOTHING;
-    this._seeking = false;
-    this._paused = true;
-    this._defaultPlaybackRate = 1;
-    this._playbackRate = 1;
-    this._played = {};
-    this._seekable = {};
-    this._ended = false;
-    this._autoplay = true;
-    this._loop = false;
-    this._volume = 1;
-    this._muted = false;
-    this._defaultMuted = false;
-
-    this.selectResourceTimer = null;
-    this.fetchResourceTimer = null;
-    this.timeUpdateTimer = null;
-
-    this.buffer = null;
-    this.node = null;
-    this.gainNode = null;
-
-    this.ajax = null;
-    this.eventListeners = { };
-    this.startTime = 0;
-    this.nextStartTime = 0;
-
-    this.autoplaying = false;
-    this.delayingTheLoadEvent = false;
-    this.sentLoadedData = false;
-
-    this.setSrc(src);
-}
+class Sound {
+    constructor(src) {
+        if (Sound.audioContext === undefined) {
+            var AudioContext = window.AudioContext || window.webkitAudioContext || window.mozAudioContext;
+            Sound.audioContext = new AudioContext();
+        }
+
+        this._networkState = this.NETWORK.EMPTY;
+        this._preload = this.PRELOAD.AUTO;
+        this._buffered = {};
+        this._readyState = this.READY.NOTHING;
+        this._seeking = false;
+        this._paused = true;
+        this._defaultPlaybackRate = 1;
+        this._playbackRate = 1;
+        this._played = {};
+        this._seekable = {};
+        this._autoplay = true;
+        this._loop = false;
+        this._volume = 1;
+        this._muted = false;
+        this._defaultMuted = false;
+
+        this.selectResourceTimer = null;
+        this.fetchResourceTimer = null;
+        this.timeUpdateTimer = null;
+
+        this.buffer = null;
+        this.node = null;
+        this.gainNode = null;
+
+        this.ajax = null;
+        this.eventListeners = { };
+        this.startTime = 0;
+        this.nextStartTime = 0;

 
 

-Sound.prototype = {
-    /* Constants */
-    ERR: {
-        NONE: 0,
-        ABORTED: 1,
-        NETWORK: 2,
-        DECODE: 3,
-        SRC_NOT_SUPPORTED: 4,
-    },
-
-    NETWORK: {
-        EMPTY: 0,
-        IDLE: 1,
-        LOADING: 2,
-        NO_SOURCE: 3,
-    },
-
-    READY: {
-        NOTHING: 0,
-        METADATA: 1,
-        CURRENT_DATA: 2,
-        FUTURE_DATA: 3,
-        ENOUGH_DATA: 4,
-    },
-
-    PRELOAD: {
-        NONE: 0,
-        METADATA: 1,
-        AUTO: 2,
-    },
-
-    load: function() {
+        this.autoplaying = false;
+        this.delayingTheLoadEvent = false;
+        this.sentLoadedData = false;
+
+        this.src = src;
+    }
+
+    load() {

         if (this.networkState === this.NETWORK.LOADING || this.networkState === this.NETWORK.IDLE)
             this.dispatchEventAsync(new CustomEvent('abort'));
 
         if (this.networkState === this.NETWORK.LOADING || this.networkState === this.NETWORK.IDLE)
             this.dispatchEventAsync(new CustomEvent('abort'));
 


@@ -115,52 +83,52 @@ Sound.prototype = {
             }
 
             if (this._readyState != this.READY.NOTHING)
             }
 
             if (this._readyState != this.READY.NOTHING)

-                this.setReadyState(this.READY.NOTHING);
+                this.readyState = this.READY.NOTHING;

 
             if (!this._paused)
                 this.pause();
 
             if (!this._seeking)
                 this._seeking = false;
 
             if (!this._paused)
                 this.pause();
 
             if (!this._seeking)
                 this._seeking = false;

-            this.setCurrentTime(0);
+            this.currentTime = 0;

             this.buffer = null;
         }
 
             this.buffer = null;
         }
 

-        this.setPlaybackRate(this.defaultPlaybackRate);
+        this.playbackRate = this.defaultPlaybackRate;

         this._error = null;
         this.autoplaying = true;
         this.stopInternal();
         this.sentLoadedData = false;
 
         this.selectResource();
         this._error = null;
         this.autoplaying = true;
         this.stopInternal();
         this.sentLoadedData = false;
 
         this.selectResource();

-    },
+    }

 
 

-    selectResource: function() {
-        this.setNetworkState(this.NETWORK.NO_SOURCE);
+    selectResource() {
+        this.networkState = this.NETWORK.NO_SOURCE;

         this.delayingTheLoadEvent = true;
 
         this.selectResourceTimer = setTimeout(this.selectResourceAsync.bind(this), 0);
         this.delayingTheLoadEvent = true;
 
         this.selectResourceTimer = setTimeout(this.selectResourceAsync.bind(this), 0);

-    },
+    }

 
 

-    selectResourceAsync: function() {
+    selectResourceAsync() {

         this.selectResourceTimer = null;
 
         if (!this._src) {
         this.selectResourceTimer = null;
 
         if (!this._src) {

-            this.setNetworkState(this.NETWORK.EMPTY);
+            this.networkState = this.NETWORK.EMPTY;

             return;
         }
 
             return;
         }
 

-        this.setNetworkState(this.NETWORK.LOADING);
+        this.networkState = this.NETWORK.LOADING;

         this.dispatchEventAsync(new CustomEvent('loadstart'));
 
         this.fetchResourceTimer = setTimeout(this.fetchResource(), 0);
         this.dispatchEventAsync(new CustomEvent('loadstart'));
 
         this.fetchResourceTimer = setTimeout(this.fetchResource(), 0);

-    },
+    }

 
 

-    fetchResource: function() {
+    fetchResource() {

         this.fetchResourceTimer = null;
 
         if (this._preload === this.PRELOAD.NONE) {
         this.fetchResourceTimer = null;
 
         if (this._preload === this.PRELOAD.NONE) {

-            this.setNetworkState(this.NETWORK.IDLE);
+            this.networkState = this.NETWORK.IDLE;

             this.dispatchEventAsync(new CustomEvent('suspend'));
             this.delayingTheLoadEvent = false;
             return;
             this.dispatchEventAsync(new CustomEvent('suspend'));
             this.delayingTheLoadEvent = false;
             return;


@@ -173,19 +141,19 @@ Sound.prototype = {
         this.ajax.onload = this.resourceFetchingSucceeded.bind(this);
         this.ajax.onerror = this.resourceFetchingFailed.bind(this);
         this.ajax.send();
         this.ajax.onload = this.resourceFetchingSucceeded.bind(this);
         this.ajax.onerror = this.resourceFetchingFailed.bind(this);
         this.ajax.send();

-    },
+    }

 
 

-    resourceFetchingProgressed: function() {
+    resourceFetchingProgressed() {

         this.dispatchEventAsync(new CustomEvent('progress'));
         this.dispatchEventAsync(new CustomEvent('progress'));

-    },
+    }

 
 

-    resourceFetchingSucceeded: function() {
+    resourceFetchingSucceeded() {

         if (!this.ajax.response)
             return;
 
         if (!this.ajax.response)
             return;
 

-        this.setNetworkState(this.NETWORK.IDLE);
+        this.networkState = this.NETWORK.IDLE;

         this.dispatchEventAsync(new CustomEvent('suspend'));
         this.dispatchEventAsync(new CustomEvent('suspend'));

-        this.setReadyState(this.READY.METADATA);
+        this.readyState = this.READY.METADATA;

 
         try {
             Sound.audioContext.decodeAudioData(
 
         try {
             Sound.audioContext.decodeAudioData(


@@ -196,38 +164,38 @@ Sound.prototype = {
         } catch(exception) {
             console.log(exception);
         }
         } catch(exception) {
             console.log(exception);
         }

-    },
+    }

 
 

-    resourceFetchingFailed: function() {
+    resourceFetchingFailed() {

         this.error = { code: MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED };
         this.error = { code: MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED };

-        this.setNetworkState(this.NETWORK.NO_SOURCE);
+        this.networkState = this.NETWORK.NO_SOURCE;

         this.dispatchEventAsync(new CustomEvent('error'));
         this.delayingTheLoadEvent = false;
         this.dispatchEventAsync(new CustomEvent('error'));
         this.delayingTheLoadEvent = false;

-    },
+    }

 
 

-    resourceDecodingSucceeded: function(buffer) {
+    resourceDecodingSucceeded(buffer) {

         this.buffer = buffer;
 
         this.buffer = buffer;
 

-        this.setCurrentTime(0);
+        this.currentTime = 0;

         this.dispatchEventAsync(new CustomEvent('durationchange'));
         this.dispatchEventAsync(new CustomEvent('durationchange'));

-        this.setReadyState(this.READY.ENOUGH_DATA);
+        this.readyState = this.READY.ENOUGH_DATA;

 
         if (this.autoplaying && this._paused && this._autoplay)
             this.play();
         this.dispatchEventAsync(new CustomEvent('canplaythrough'));
 
         if (this.autoplaying && this._paused && this._autoplay)
             this.play();
         this.dispatchEventAsync(new CustomEvent('canplaythrough'));

-    },
+    }

 
 

-    resourceDecodingFailed: function(error) {
+    resourceDecodingFailed(error) {

         this._error = { code: HTMLMediaElement.MEDIA_ERR_DECODE };
         this.dispatchEventAsync(new CustomEvent('error'));
         if (this._readyState === this.READY.NOTHING) {
         this._error = { code: HTMLMediaElement.MEDIA_ERR_DECODE };
         this.dispatchEventAsync(new CustomEvent('error'));
         if (this._readyState === this.READY.NOTHING) {

-            this.setNetworkState(this.NETWORK.EMPTY);
+            this.networkState = this.NETWORK.EMPTY;

             this.dispatchEventAsync('emptied');
         } else
             this.dispatchEventAsync('emptied');
         } else

-            this.setNetworkState(this.NETWORK.IDLE);
-    },
+            this.networkState = this.NETWORK.IDLE;
+    }

 
 

-    play: function() {
+    play() {

         if (this._networkState === this.NETWORK.EMPTY)
             this.loadResource();
 
         if (this._networkState === this.NETWORK.EMPTY)
             this.loadResource();
 


@@ -239,16 +207,15 @@ Sound.prototype = {
         if (this.node)
             return;
 
         if (this.node)
             return;
 

-        if (this._ended) {
+        if (this.endedPlayback()) {

             if (this._playbackRate > 0)
             if (this._playbackRate > 0)

-                this.setCurrentTime(0);
+                this.currentTime = 0;

             else
             else

-                this.setCurrentTime(this.duration)
+                this.currentTime = this.duration

         }
 
         }
 

-        if (this._paused || this._ended) {
+        if (this._paused || this.endedPlayback()) {

             this._paused = false;
             this._paused = false;

-            this._ended = false;

             this.dispatchEventAsync(new CustomEvent('play'));
 
             if (this._readyState < this.READY.FUTURE_DATA)
             this.dispatchEventAsync(new CustomEvent('play'));
 
             if (this._readyState < this.READY.FUTURE_DATA)


@@ -260,9 +227,9 @@ Sound.prototype = {
         this._autoplay = false;
 
         this.playInternal();
         this._autoplay = false;
 
         this.playInternal();

-    },
+    }

 
 

-    playInternal: function() {
+    playInternal() {

         this.gainNode = Sound.audioContext.createGainNode();
         this.gainNode.gain.value = this._muted ? 0 : this._volume;
         this.gainNode.connect(Sound.audioContext.destination);
         this.gainNode = Sound.audioContext.createGainNode();
         this.gainNode.gain.value = this._muted ? 0 : this._volume;
         this.gainNode.connect(Sound.audioContext.destination);


@@ -274,17 +241,19 @@ Sound.prototype = {
         this.node.buffer = this.buffer;
         this.node.playbackRate.value = this._playbackRate;
         this.node.onended = this.onended.bind(this);
         this.node.buffer = this.buffer;
         this.node.playbackRate.value = this._playbackRate;
         this.node.onended = this.onended.bind(this);

-               var remainingDuration = this._playbackRate < 0 ? this.nextStartTime : this.buffer.duration - this.nextStartTime;
-        this.node.start(0, this.nextStartTime, remainingDuration);
+        if (this._playbackRate < 0)
+            this.node.start(0, 0, this.nextStartTime);
+        else
+            this.node.start(0, this.nextStartTime, this.buffer.duration - this.nextStartTime);

 
         this.timeUpdateTimer = setInterval(this.sendTimeUpdate.bind(this), 250);
 
         this.timeUpdateTimer = setInterval(this.sendTimeUpdate.bind(this), 250);

-    },
+    }

 
 

-    sendTimeUpdate: function() {
+    sendTimeUpdate() {

         this.dispatchEventAsync(new CustomEvent('timeupdate'));
         this.dispatchEventAsync(new CustomEvent('timeupdate'));

-    },
+    }

 
 

-    pause: function() {
+    pause() {

         if (this._networkState === this.NETWORK.EMPTY)
             this.loadResource();
 
         if (this._networkState === this.NETWORK.EMPTY)
             this.loadResource();
 


@@ -301,9 +270,9 @@ Sound.prototype = {
 
         this.nextStartTime = this._playbackRate * (Sound.audioContext.currentTime - this.startTime);
         this.stopInternal();
 
         this.nextStartTime = this._playbackRate * (Sound.audioContext.currentTime - this.startTime);
         this.stopInternal();

-    },
+    }

 
 

-    stopInternal: function() {
+    stopInternal() {

         if (this.node) {
             this.node.disconnect();
             delete this.node;
         if (this.node) {
             this.node.disconnect();
             delete this.node;


@@ -314,21 +283,37 @@ Sound.prototype = {
         }
 
         clearInterval(this.timeUpdateTimer);
         }
 
         clearInterval(this.timeUpdateTimer);

-    },
+    }

 
 

-    onended: function() {
+    onended() {

         if (this._loop) {
         if (this._loop) {

+            this.nextStartTime = this._playbackRate < 0 ? this.duration : 0;

             this.stopInternal();
             this.playInternal();
             return;
         }
 
             this.stopInternal();
             this.playInternal();
             return;
         }
 

-        this._ended = true;
+        this.nextStartTime = this._playbackRate < 0 ? 0 : this.duration;

         this.stopInternal();
         this.dispatchEventAsync(new CustomEvent('ended'));
         this.stopInternal();
         this.dispatchEventAsync(new CustomEvent('ended'));

-    },
+    }

 
 

-    addEventListener: function(eventName, handler) {
+    endedPlayback() {
+        if (this._readyState < this.READY.METADATA)
+            return false;
+
+        if (this.currentTime >= this.duration && this._playbackRate >= 0 && !this._loop)
+            return true;
+
+        if (this.currentTime <= 0 && this._playbackRate <= 0)
+            return true;
+    }
+
+    get ended() {
+        return this.endedPlayback() && this._playbackRate >= 0;
+    }
+
+    addEventListener(eventName, handler) {

         if (!this.eventListeners[eventName])
             this.eventListeners[eventName] = [];
 
         if (!this.eventListeners[eventName])
             this.eventListeners[eventName] = [];
 


@@ -337,9 +322,9 @@ Sound.prototype = {
             return;
 
         listeners.push(handler);
             return;
 
         listeners.push(handler);

-    },
+    }

 
 

-    removeEventListener: function(eventName, handler) {
+    removeEventListener(eventName, handler) {

         if (!this.eventListeners[eventName])
             return;
 
         if (!this.eventListeners[eventName])
             return;
 


@@ -349,50 +334,49 @@ Sound.prototype = {
             return;
 
         listeners.splice(index, 1);
             return;
 
         listeners.splice(index, 1);

-    },
+    }

 
 

-    dispatchEventAsync: function(event) {
+    dispatchEventAsync(event) {

         window.setTimeout(this.dispatchEvent.bind(this, event), 0);
         window.setTimeout(this.dispatchEvent.bind(this, event), 0);

-    },
+    }

 
 

-    dispatchEvent: function(event) {
+    dispatchEvent(event) {

         if (!this.eventListeners[event.type])
             return;
 
         if (!this.eventListeners[event.type])
             return;
 

-        event.target = this;

         var listeners = this.eventListeners[event.type];
         listeners.forEach(function(listener) {
             listener.call(this, event);
         });
         var listeners = this.eventListeners[event.type];
         listeners.forEach(function(listener) {
             listener.call(this, event);
         });

-    },
+    }

 
 

-    getSrc: function() {
+    get src() {

         return this._src;
         return this._src;

-    },
+    }

 
 

-    setSrc: function(src) {
+    set src(src) {

         this._src = src;
         if (this._src)
             this.load();
         this._src = src;
         if (this._src)
             this.load();

-    },
+    }

 
 

-    getCurrentSrc: function() {
+    get currentSrc() {

         return this._src;
         return this._src;

-    },
+    }

 
 

-    getNetworkState: function() {
+    get setworkState() {

         return this._networkState;
         return this._networkState;

-    },
+    }

 
 

-    setNetworkState: function(value) {
+    set networkState(value) {

         this._networkState = value;
         this._networkState = value;

-    },
+    }

 
 

-    getReadyState: function() {
+    get readyState() {

         return this._readyState;
         return this._readyState;

-    },
+    }

 
 

-    setReadyState: function(value) {
+    set readyState(value) {

         var oldState = this._readyState;
         var newState = this._readyState = value;
 
         var oldState = this._readyState;
         var newState = this._readyState = value;
 


@@ -408,7 +392,7 @@ Sound.prototype = {
         }
 
         if (oldState >= this.READY.FUTURE_DATA && newState <= this.READY.CURRENT_DATA) {
         }
 
         if (oldState >= this.READY.FUTURE_DATA && newState <= this.READY.CURRENT_DATA) {

-            if (this.autoplaying && this._paused && this._autoplay && !this._ended && !this._error) {
+            if (this.autoplaying && this._paused && this._autoplay && !this.endedPlayback() && !this._error) {

                 this.dispatchEventAsync('timeupdate');
                 this.dispatchEventAsync('waiting');
                 this.nextStartTime = this._playbackRate * (Sound.audioContext.currentTime - this.startTime);
                 this.dispatchEventAsync('timeupdate');
                 this.dispatchEventAsync('waiting');
                 this.nextStartTime = this._playbackRate * (Sound.audioContext.currentTime - this.startTime);


@@ -432,18 +416,18 @@ Sound.prototype = {
             if (this.autoplaying && this._paused && this._autoplay)
                 this.play();
         }
             if (this.autoplaying && this._paused && this._autoplay)
                 this.play();
         }

-    },
+    }

 
 

-    getPreload: function() {
+    get preload() {

         switch (this._preload) {
             case this.PRELOAD.NONE: return 'none';
             case this.PRELOAD.METADATA: return 'metadata';
             case this.PRELOAD.AUTO: return 'auto';
             default: return '';
         }
         switch (this._preload) {
             case this.PRELOAD.NONE: return 'none';
             case this.PRELOAD.METADATA: return 'metadata';
             case this.PRELOAD.AUTO: return 'auto';
             default: return '';
         }

-    },
+    }

 
 

-    setPreload: function(preload) {
+    set preload(preload) {

         switch (preload) {
             default:
             case 'none':
         switch (preload) {
             default:
             case 'none':


@@ -460,15 +444,15 @@ Sound.prototype = {
                     this.load();
                 break;
         }
                     this.load();
                 break;
         }

-    },
+    }

 
 

-    getCurrentTime: function() {
+    get currentTime() {

         if (!this.node)
             return this.nextStartTime;
         return this.nextStartTime + this._playbackRate * (Sound.audioContext.currentTime - this.startTime);
         if (!this.node)
             return this.nextStartTime;
         return this.nextStartTime + this._playbackRate * (Sound.audioContext.currentTime - this.startTime);

-    },
+    }

 
 

-    setCurrentTime: function(time) {
+    set currentTime(time) {

         this.nextStartTime = parseFloat(time);
         this.dispatchEventAsync(new CustomEvent('timeupdate'));
         if (!this.node)
         this.nextStartTime = parseFloat(time);
         this.dispatchEventAsync(new CustomEvent('timeupdate'));
         if (!this.node)


@@ -476,48 +460,55 @@ Sound.prototype = {
 
         this.stopInternal();
         this.playInternal();
 
         this.stopInternal();
         this.playInternal();

-    },
+    }

 
 

-    getDuration: function() {
+    get duration() {

         if (!this.buffer)
             return NaN;
 
         return this.buffer.duration;
         if (!this.buffer)
             return NaN;
 
         return this.buffer.duration;

-    },
+    }

 
 

-    getPaused: function() {
+    get paused() {

         return this._paused;
         return this._paused;

-    },
+    }

 
 

-    getPlaybackRate: function() {
+    get playbackRate() {

         return this._playbackRate;
         return this._playbackRate;

-    },
+    }

 
 

-    setPlaybackRate: function(rate) {
+    set playbackRate(rate) {

         var oldPlaybackRate = this._playbackRate;
         this._playbackRate = parseFloat(rate);
         this.dispatchEventAsync(new CustomEvent('ratechange'));
 
         if (this.node) {
         var oldPlaybackRate = this._playbackRate;
         this._playbackRate = parseFloat(rate);
         this.dispatchEventAsync(new CustomEvent('ratechange'));
 
         if (this.node) {

-            this.nextStartTime = oldPlaybackRate * (Sound.audioContext.currentTime - this.startTime);
+            var currentTime = Sound.audioContext.currentTime
+            this.nextStartTime += oldPlaybackRate * (currentTime - this.startTime);
+            this.startTime = currentTime;

             this.node.playbackRate.value = this._playbackRate;
             this.node.playbackRate.value = this._playbackRate;

+
+            if ((oldPlaybackRate <= 0) != (this._playbackRate <= 0)) {
+                this.stopInternal();
+                this.playInternal();
+            }

         }
         }

-    },
+    }

 
 

-    getDefaultPlaybackRate: function() {
+    get defaultPlaybackRate() {

         return this._defaultPlaybackRate;
         return this._defaultPlaybackRate;

-    },
+    }

 
 

-    setDefaultPlaybackRate: function(rate) {
+    set defaultPlaybackRate(rate) {

         this._defaultPlaybackRate = parseFloat(rate);
         this.dispatchEventAsync(new CustomEvent('ratechange'));
         this._defaultPlaybackRate = parseFloat(rate);
         this.dispatchEventAsync(new CustomEvent('ratechange'));

-    },
+    }

 
 

-    getVolume: function() {
+    get volume() {

         return this._volume;
         return this._volume;

-    },
+    }

 
 

-    setVolume: function(volume) {
+    set volume(volume) {

         if (this._volume === volume)
             return;
 
         if (this._volume === volume)
             return;
 


@@ -526,13 +517,13 @@ Sound.prototype = {
 
         if (this.gainNode)
             this.gainNode.gain.value = this._muted ? 0 : this._volume;
 
         if (this.gainNode)
             this.gainNode.gain.value = this._muted ? 0 : this._volume;

-    },
+    }

 
 

-    getMuted: function() {
+    get muted() {

         return this._muted;
         return this._muted;

-    },
+    }

 
 

-    setMuted: function(muted) {
+    set muted(muted) {

         if (this._muted === muted)
             return;
 
         if (this._muted === muted)
             return;
 


@@ -541,129 +532,58 @@ Sound.prototype = {
 
         if (this.gainNode)
             this.gainNode.gain.value = this._muted ? 0 : this._volume;
 
         if (this.gainNode)
             this.gainNode.gain.value = this._muted ? 0 : this._volume;

-    },
+    }

 
 

-    getAutoplay: function() {
+    get autoplay() {

         return this._autoplay;
         return this._autoplay;

-    },
+    }

 
 

-    setAutoplay: function(autoplay) {
+    set autoplay(autoplay) {

         if (this._autoplay === autoplay)
             return;
 
         this._autoplay = autoplay;
         if (this._autoplay && this._networkState === this.NETWORK.EMPTY)
             this.load();
         if (this._autoplay === autoplay)
             return;
 
         this._autoplay = autoplay;
         if (this._autoplay && this._networkState === this.NETWORK.EMPTY)
             this.load();

-    },
+    }

 
 

-    getLoop: function() {
+    get loop() {

         return this._loop;
         return this._loop;

-    },
+    }

 
 

-    setLoop: function(loop) {
+    set loop(loop) {

         this._loop = loop;
         this._loop = loop;

-    },
+    }
+}
+
+Sound.prototype.ERR = {
+    NONE: 0,
+    ABORTED: 1,
+    NETWORK: 2,
+    DECODE: 3,
+    SRC_NOT_SUPPORTED: 4,

 };
 
 };
 

-Object.defineProperty(Sound.prototype, 'src', {
-    get: Sound.prototype.getSrc,
-    set: Sound.prototype.setSrc,
-});
-
-Object.defineProperty(Sound.prototype, 'currentSrc', {
-    get: Sound.prototype.getCurrentSrc,
-});
-
-Object.defineProperty(Sound.prototype, 'networkState', {
-    get: Sound.prototype.getNetworkState,
-});
-
-Object.defineProperty(Sound.prototype, 'preload', {
-    get: Sound.prototype.getPreload,
-    set: Sound.prototype.setPreload,
-});
-
-Object.defineProperty(Sound.prototype, 'buffered', {
-    get: Sound.prototype.getBuffered,
-});
-
-Object.defineProperty(Sound.prototype, 'readyState', {
-    get: Sound.prototype.getReadyState,
-});
-
-Object.defineProperty(Sound.prototype, 'seeking', {
-    get: Sound.prototype.getSeeking,
-});
-
-Object.defineProperty(Sound.prototype, 'currentTime', {
-    get: Sound.prototype.getCurrentTime,
-    set: Sound.prototype.setCurrentTime,
-});
-
-Object.defineProperty(Sound.prototype, 'duration', {
-    get: Sound.prototype.getDuration,
-});
-
-Object.defineProperty(Sound.prototype, 'paused', {
-    get: Sound.prototype.getPaused,
-});
-
-Object.defineProperty(Sound.prototype, 'defaultPlaybackRate', {
-    get: Sound.prototype.getDefaultPlaybackRate,
-    set: Sound.prototype.setDefaultPlaybackRate,
-});
-
-Object.defineProperty(Sound.prototype, 'playbackRate', {
-    get: Sound.prototype.getPlaybackRate,
-    set: Sound.prototype.setPlaybackRate,
-});
-
-Object.defineProperty(Sound.prototype, 'played', {
-    get: Sound.prototype.getPlayed,
-});
-
-Object.defineProperty(Sound.prototype, 'seekable', {
-    get: Sound.prototype.getSeekable,
-});
-
-Object.defineProperty(Sound.prototype, 'ended', {
-    get: Sound.prototype.getEnded,
-});
-
-Object.defineProperty(Sound.prototype, 'autoplay', {
-    get: Sound.prototype.getAutoplay,
-    set: Sound.prototype.setAutoplay,
-});
-
-Object.defineProperty(Sound.prototype, 'loop', {
-    get: Sound.prototype.getLoop,
-    set: Sound.prototype.setLoop,
-});
-
-Object.defineProperty(Sound.prototype, 'controls', {
-    get: Sound.prototype.getControls,
-    set: Sound.prototype.setControls,
-});
-
-Object.defineProperty(Sound.prototype, 'volume', {
-    get: Sound.prototype.getVolume,
-    set: Sound.prototype.setVolume,
-});
-
-Object.defineProperty(Sound.prototype, 'muted', {
-    get: Sound.prototype.getMuted,
-    set: Sound.prototype.setMuted,
-});
-
-Object.defineProperty(Sound.prototype, 'defaultMuted', {
-    get: Sound.prototype.getDefaultMuted,
-    set: Sound.prototype.setDefaultMuted,
-});
-
-Object.defineProperty(Sound.prototype, 'preload', {
-    get: Sound.prototype.getPreload,
-    set: Sound.prototype.setPreload,
-});
+Sound.prototype.NETWORK = {
+    EMPTY: 0,
+    IDLE: 1,
+    LOADING: 2,
+    NO_SOURCE: 3,
+};
+
+Sound.prototype.READY = {
+    NOTHING: 0,
+    METADATA: 1,
+    CURRENT_DATA: 2,
+    FUTURE_DATA: 3,
+    ENOUGH_DATA: 4,
+};
+
+Sound.prototype.PRELOAD = {
+    NONE: 0,
+    METADATA: 1,
+    AUTO: 2,
+};

 
 document.createElement = function(elementName) {
     if (elementName === "Audio" || elementName === "audio")
 
 document.createElement = function(elementName) {
     if (elementName === "Audio" || elementName === "audio")