From 17ce9f641dbd93c6096c0cf9825d1ca2e8da6bae Mon Sep 17 00:00:00 2001
From: Seth Call <sethcall@gmail.com>
Date: Mon, 4 May 2015 14:09:55 -0500
Subject: [PATCH] * VRFS-3165 - stop preview widget by using pause, VRFS-3174 -
 stop preview when you leave page

---
 .../javascripts/jam_track_preview.js.coffee      |  7 ++++++-
 .../javascripts/jam_track_screen.js.coffee       |  6 +++++-
 web/vendor/assets/javascripts/howler.core.js     | 16 ++++++++--------
 3 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/web/app/assets/javascripts/jam_track_preview.js.coffee b/web/app/assets/javascripts/jam_track_preview.js.coffee
index 6e619b42c..c87b5d03c 100644
--- a/web/app/assets/javascripts/jam_track_preview.js.coffee
+++ b/web/app/assets/javascripts/jam_track_preview.js.coffee
@@ -73,6 +73,8 @@ context.JK.JamTrackPreview = class JamTrackPreview
         urls.push(@jamTrackTrack.preview_ogg_url)
 
       @no_audio = false
+      @root.on('remove', @onDestroyed);
+
       @sound = new Howl({
         src: urls,
         autoplay: false,
@@ -86,6 +88,9 @@ context.JK.JamTrackPreview = class JamTrackPreview
       @playButton.addClass('disabled')
       @stopButton.addClass('disabled')
 
+  onDestroyed: () =>
+    @sound.unload()
+
   removeNowPlaying: () =>
     context.JK.JamTrackPreview.nowPlaying.splice(this)
     if context.JK.JamTrackPreview.nowPlaying.length > 0
@@ -118,7 +123,7 @@ context.JK.JamTrackPreview = class JamTrackPreview
 
   issueStop: () =>
     @logger.debug("stop issued for jam track preview")
-    @sound.stop()
+    @sound.pause() # stop does not actually stop in windows client
     @stopButton.addClass('hidden')
     @playButton.removeClass('hidden')
 
diff --git a/web/app/assets/javascripts/jam_track_screen.js.coffee b/web/app/assets/javascripts/jam_track_screen.js.coffee
index 8247fbaeb..9fc419a9b 100644
--- a/web/app/assets/javascripts/jam_track_screen.js.coffee
+++ b/web/app/assets/javascripts/jam_track_screen.js.coffee
@@ -27,7 +27,10 @@ context.JK.JamTrackScreen=class JamTrackScreen
     this.refresh()
     
   afterShow:(data) =>
-    
+
+  beforeHide: () =>
+    this.clearResults();
+
   events:() =>
     @genre.on 'change', this.search
     @artist.on 'change', this.search
@@ -283,6 +286,7 @@ context.JK.JamTrackScreen=class JamTrackScreen
     screenBindings =
       'beforeShow': this.beforeShow
       'afterShow': this.afterShow
+      'beforeHide' : this.beforeHide
     @app.bindScreen 'jamtrackBrowse', screenBindings
     @screen = $('#jamtrack-find-form')
     @scroller = @screen.find('.content-body-scroller')
diff --git a/web/vendor/assets/javascripts/howler.core.js b/web/vendor/assets/javascripts/howler.core.js
index 33b8bfbc3..12b27fb8b 100644
--- a/web/vendor/assets/javascripts/howler.core.js
+++ b/web/vendor/assets/javascripts/howler.core.js
@@ -160,7 +160,7 @@
       var self = this || Howler;
       var audioTest = new Audio();
       var mpegTest = audioTest.canPlayType('audio/mpeg;').replace(/^no$/, '');
-      
+
       self._codecs = {
         mp3: !!(mpegTest || audioTest.canPlayType('audio/mp3;').replace(/^no$/, '')),
         mpeg: !!mpegTest,
@@ -498,9 +498,9 @@
 
           // Play the sound using the supported method.
           if (typeof node.bufferSource.start === 'undefined') {
-            node.bufferSource.noteGrainOn(0, seek, duration);
+            sound._loop ? node.bufferSource.noteGrainOn(0, seek, 86400) : node.bufferSource.noteGrainOn(0, seek, duration);
           } else {
-            node.bufferSource.start(0, seek, duration);
+            sound._loop ? node.bufferSource.start(0, seek, 86400) : node.bufferSource.start(0, seek, duration);
           }
 
           // Start a new timer if none is present.
@@ -852,7 +852,7 @@
             var dir = from > to ? 'out' : 'in';
             var steps = diff / 0.01;
             var stepLen = len / steps;
-            
+
             (function() {
               var vol = from;
               var interval = setInterval(function(id) {
@@ -1157,7 +1157,7 @@
     _emit: function(event, id, msg) {
       var self = this;
       var events = self['_on' + event];
-      
+
       // Loop through event store and fire all functions.
       for (var i=0; i<events.length; i++) {
         if (!events[i].id || events[i].id === id) {
@@ -1430,7 +1430,7 @@
 
       // Fire an error event and pass back the code.
       self._parent._emit('loaderror', self._id, self._node.error ? self._node.error.code : 0);
-      
+
       // Clear the event listener.
       self._node.removeEventListener('error', self._errorListener, false);
     },
@@ -1513,7 +1513,7 @@
         for (var i=0; i<data.length; ++i) {
           dataView[i] = data.charCodeAt(i);
         }
-        
+
         decodeAudioData(dataView.buffer, self);
       } else {
         // Load the buffer from the URL.
@@ -1648,4 +1648,4 @@
     window.Howl = Howl;
     window.Sound = Sound;
   }
-})();
+})();
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