REGRESSION(r156546): media/video-no-audio.html broken

[WebKit-https.git] / Source / WebCore / Modules / mediacontrols / mediaControlsApple.js

diff --git a/Source/WebCore/Modules/mediacontrols/mediaControlsApple.js b/Source/WebCore/Modules/mediacontrols/mediaControlsApple.js
index cc30400..7a117b4 100644 (file)
--- a/Source/WebCore/Modules/mediacontrols/mediaControlsApple.js
+++ b/Source/WebCore/Modules/mediacontrols/mediaControlsApple.js
@@ -25,6 +25,7 @@ function Controller(root, video, host)
     this.updateCaptionButton();
     this.updateCaptionContainer();
     this.updateVolume();
+    this.updateHasAudio();
 };
 
 /* Enums */
@@ -112,6 +113,11 @@ Controller.prototype = {
         this.listenFor(this.video.textTracks, 'addtrack', this.handleTextTrackAdd);
         this.listenFor(this.video.textTracks, 'removetrack', this.handleTextTrackRemove);
 
+        /* audio tracks */
+        this.listenFor(this.video.audioTracks, 'change', this.updateHasAudio);
+        this.listenFor(this.video.audioTracks, 'addtrack', this.updateHasAudio);
+        this.listenFor(this.video.audioTracks, 'removetrack', this.updateHasAudio);
+
         /* controls attribute */
         this.controlsObserver = new MutationObserver(this.handleControlsChange.bind(this));
         this.controlsObserver.observe(this.video, { attributes: true, attributeFilter: ['controls'] });
@@ -128,6 +134,11 @@ Controller.prototype = {
         this.stopListeningFor(this.video.textTracks, 'addtrack', this.handleTextTrackAdd);
         this.stopListeningFor(this.video.textTracks, 'removetrack', this.handleTextTrackRemove);
 
+        /* audio tracks */
+        this.stopListeningFor(this.video.audioTracks, 'change', this.updateHasAudio);
+        this.stopListeningFor(this.video.audioTracks, 'addtrack', this.updateHasAudio);
+        this.stopListeningFor(this.video.audioTracks, 'removetrack', this.updateHasAudio);
+
         /* controls attribute */
         this.controlsObserver.disconnect();
         delete(this.controlsObserver);
@@ -914,6 +925,14 @@ Controller.prototype = {
         delete this.captionMenuItems;
     },
 
+    updateHasAudio: function()
+    {
+        if (this.video.audioTracks.length)
+            this.controls.muteBox.classList.remove(this.ClassNames.hidden);
+        else
+            this.controls.muteBox.classList.add(this.ClassNames.hidden);
+    },
+
     updateVolume: function()
     {
         if (this.video.muted || !this.video.volume) {