Fixes memory leak on webaudio resolve #64

src/sound/Sound.js

@@ -175,6 +175,12 @@ Phaser.Sound = function (game, key, volume, loop, connect) {
     */
     this._sound = null;
 
+    /**
+    * @property {object} _markedToDelete - When audio stops if markedToDelete it's active, will disconnect the nodes and free the memory.
+    * @private
+    */
+    this._markedToDelete = false;
+
     if (this.usingWebAudio)
     {
         this.context = this.game.sound.context;
@@ -388,7 +394,7 @@ Phaser.Sound.prototype = {
     /**
     * Called automatically by the AudioContext when the sound stops playing.
     * Doesn't get called if the sound is set to loop or is a section of an Audio Sprite.
-    * 
+    *
     * @method Phaser.Sound#onEndedHandler
     * @protected
     */
@@ -399,6 +405,18 @@ Phaser.Sound.prototype = {
         this.currentTime = this.durationMS;
         this.stop();
 
+        if(this._markedToDelete){
+          if (this.externalNode)
+          {
+              this._sound.disconnect(this.externalNode);
+          }
+          else if (this.gainNode)
+          {
+              this._sound.disconnect(this.gainNode);
+          }
+        }
+
+
     },
 
     /**
@@ -504,7 +522,7 @@ Phaser.Sound.prototype = {
 
     /**
     * Play this sound, or a marked section of it.
-    * 
+    *
     * @method Phaser.Sound#play
     * @param {string} [marker=''] - If you want to play a marker then give the key here, otherwise leave blank to play the full sound.
     * @param {number} [position=0] - The starting position to play the sound from - this is ignored if you provide a marker.
@@ -561,7 +579,7 @@ Phaser.Sound.prototype = {
 
         if (marker === '' && Object.keys(this.markers).length > 0)
         {
-            //  If they didn't specify a marker but this is an audio sprite, 
+            //  If they didn't specify a marker but this is an audio sprite,
             //  we should never play the entire thing
             return this;
         }
@@ -873,22 +891,15 @@ Phaser.Sound.prototype = {
                 else
                 {
                     try {
+                        this._markedToDelete = true;
                         this._sound.stop(0);
+
                     }
                     catch (e)
                     {
                         //  Thanks Android 4.4
                     }
                 }
-
-                if (this.externalNode)
-                {
-                    this._sound.disconnect(this.externalNode);
-                }
-                else if (this.gainNode)
-                {
-                    this._sound.disconnect(this.gainNode);
-                }
             }
             else if (this.usingAudioTag)
             {
@@ -948,7 +959,7 @@ Phaser.Sound.prototype = {
         this.fadeTo(duration, 1);
 
     },
-    
+
     /**
     * Decreases the volume of this Sound from its current value to 0 over the duration specified.
     * At the end of the fade Sound.onFadeComplete is dispatched with this Sound object as the first parameter,
@@ -965,7 +976,7 @@ Phaser.Sound.prototype = {
 
     /**
     * Fades the volume of this Sound from its current value to the given volume over the duration specified.
-    * At the end of the fade Sound.onFadeComplete is dispatched with this Sound object as the first parameter, 
+    * At the end of the fade Sound.onFadeComplete is dispatched with this Sound object as the first parameter,
     * and the final volume (volume) as the second parameter.
     *
     * @method Phaser.Sound#fadeTo