comparison js/core.js @ 2823:25027b8665a2

Implementation for #209

     this.play = function (id) {
         // Start the timer and set the audioEngine state to playing (1)
         if (typeof id !== "number" || id < 0 || id > this.audioObjects.length) {
             throw ('FATAL - Passed id was undefined - AudioEngineContext.play(id)');
         }
+        var maxPlays = this.audioObjects[id].specification.maxNumberPlays || this.audioObjects[id].specification.parent.maxNumberPlays || specification.maxNumberPlays;
+        if (maxPlays !== undefined && this.audioObjects[id].numberOfPlays >= maxPlays) {
+            interfaceContext.lightbox.post("Error", "Cannot play this fragment more than " + maxPlays + " times");
+            return;
+        }
         if (this.status === 1) {
             this.timer.startTest();
             interfaceContext.playhead.setTimePerPixel(this.audioObjects[id]);
             if (this.synchPlayback && this.loopPlayback) {
                 // Traditional looped playback

 }
 
 function audioObject(id) {
     // The main buffer object with common control nodes to the AudioEngine
 
+    var playCounter = 0;
+
     this.specification = undefined;
     this.id = id;
     this.state = 0; // 0 - no data, 1 - ready
     this.url = null; // Hold the URL given for the output back to the results.
     this.metric = new metricTracker(this);

         this.interfaceDOM.stopPlayback();
     };
 
     this.play = function (startTime) {
         if (this.bufferNode === undefined && this.buffer.buffer !== undefined) {
+            playCounter++;
             this.bufferNode = audioContext.createBufferSource();
             this.bufferNode.owner = this;
             this.bufferNode.connect(this.outputGain);
             this.bufferNode.buffer = this.buffer.buffer;
             this.bufferNode.loop = audioEngineContext.loopPlayback;

                 this.storeDOM.appendChild(this.commentDOM.exportXMLDOM(this));
             }
         }
         this.metric.exportXMLDOM(this.storeDOM.getElementsByTagName('metric')[0]);
     };
+
+    Object.defineProperties(this, {
+        "numberOfPlays": {
+            'get': function () {
+                return playCounter;
+            },
+            'set': function () {
+                return playCounter;
+            }
+        }
+    });
 }
 
 function timer() {
     /* Timer object used in audioEngine to keep track of session timings
      * Uses the timer of the web audio API, so sample resolution