Improve record/stop/play handling

vocoder/static/vocoder.js

@@ -10,33 +10,37 @@
 var serverUrl = 'http://localhost:5000';
 var archiveUrl = serverUrl + '/add-to-archive/';
 
-function setupRecording(){
-  var mic, recorder, soundFile;
-  var state = 0;
+var mic, recorder, soundFile;
+var state = 0;
+
+// 30 seconds (in milliseconds)
+var recordingTimeout = 30000;
 
+function setupRecording(){
   mic = new p5.AudioIn();
   mic.start();
+
   recorder = new p5.SoundRecorder();
   recorder.setInput(mic);
+
   soundFile = new p5.SoundFile();
 
   function doRecording(){
-    // TODO: handle timing out if no stopping happens
     if (mic.enabled){
-      recorder.record(soundFile);
+      setTimeout(recorder.record(soundFile), recordingTimeout);
     }
   };
 
   function doStopping(){
-    // TODO: only stop if playing/recording otherwise:
-    // "NotSupportedError: Operation is not supported"
-    recorder.stop();
-
-    // TODO: handle the generation of shapes from here
+    if (recorder.recording) {
+      recorder.stop();
+    }
   };
 
   function doPlaying(){
-    soundFile.play();
+    if (soundFile.isLoaded()){
+      soundFile.play();
+    }
   };
 
   function doArchiving(){
@@ -80,4 +84,5 @@ function setup(){
   setupRecording();
 }
 
-function draw(){}
+function draw(){
+}