Bug 1222907 - report media status to MediaCastingBar. r=mfinkle.

mobile/android/base/ChromeCast.java

@@ -86,14 +86,24 @@ class ChromeCast implements GeckoMediaPlayer {
         @Override
         public void onStatusUpdated() {
             MediaStatus mediaStatus = remoteMediaPlayer.getMediaStatus();
-            boolean isPlaying = mediaStatus.getPlayerState() == MediaStatus.PLAYER_STATE_PLAYING;
 
+            switch (mediaStatus.getPlayerState()) {
+            case MediaStatus.PLAYER_STATE_PLAYING:
+                GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("MediaPlayer:Playing", null));
+                break;
+            case MediaStatus.PLAYER_STATE_PAUSED:
+                GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("MediaPlayer:Paused", null));
+                break;
+            case MediaStatus.PLAYER_STATE_IDLE:
                 // TODO: Do we want to shutdown when there are errors?
-            if (mediaStatus.getPlayerState() == MediaStatus.PLAYER_STATE_IDLE &&
-                mediaStatus.getIdleReason() == MediaStatus.IDLE_REASON_FINISHED) {
-
+                if (mediaStatus.getIdleReason() == MediaStatus.IDLE_REASON_FINISHED) {
                     GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Casting:Stop", null));
                 }
+                break;
+            default:
+                // TODO: Do we need to handle other status such as buffering / unknown?
+                break;
+            }
         }
 
         @Override

mobile/android/base/MediaCastingBar.java

@@ -34,6 +34,8 @@ public class MediaCastingBar extends RelativeLayout implements View.OnClickListe
 
         EventDispatcher.getInstance().registerGeckoThreadListener(this,
             "Casting:Started",
+            "Casting:Paused",
+            "Casting:Playing",
             "Casting:Stopped");
     }
 
@@ -71,6 +73,8 @@ public class MediaCastingBar extends RelativeLayout implements View.OnClickListe
     public void onDestroy() {
         EventDispatcher.getInstance().unregisterGeckoThreadListener(this,
             "Casting:Started",
+            "Casting:Paused",
+            "Casting:Playing",
             "Casting:Stopped");
     }
 
@@ -111,6 +115,12 @@ public class MediaCastingBar extends RelativeLayout implements View.OnClickListe
                     }
                     mMediaPlay.setVisibility(GONE);
                     mMediaPause.setVisibility(VISIBLE);
+                } else if (event.equals("Casting:Paused")) {
+                    mMediaPause.setVisibility(GONE);
+                    mMediaPlay.setVisibility(VISIBLE);
+                } else if (event.equals("Casting:Playing")) {
+                    mMediaPlay.setVisibility(GONE);
+                    mMediaPause.setVisibility(VISIBLE);
                 } else if (event.equals("Casting:Stopped")) {
                     hide();
                 }

mobile/android/chrome/content/CastingApps.js

@@ -745,8 +745,16 @@ var CastingApps = {
     }
 
     let status = aRemoteMedia.status;
-    if (status == "completed") {
+    switch (status) {
+      case "started":
+        Messaging.sendRequest({ type: "Casting:Playing" });
+        break;
+      case "paused":
+        Messaging.sendRequest({ type: "Casting:Paused" });
+        break;
+      case "completed":
         this.closeExternal();
+        break;
     }
   }
 };

mobile/android/modules/MediaPlayerApp.jsm

@@ -83,6 +83,9 @@ function RemoteMedia(id, listener) {
 
 RemoteMedia.prototype = {
   shutdown: function shutdown() {
+    Services.obs.removeObserver(this, "MediaPlayer:Playing");
+    Services.obs.removeObserver(this, "MediaPlayer:Paused");
+
     this._send("MediaPlayer:End", {}, (result, err) => {
       this._status = "shutdown";
       if ("onRemoteMediaStop" in this._listener) {
@@ -123,6 +126,8 @@ RemoteMedia.prototype = {
         return;
       }
 
+      Services.obs.addObserver(this, "MediaPlayer:Playing", false);
+      Services.obs.addObserver(this, "MediaPlayer:Paused", false);
       this._status = "started";
     })
   },
@@ -131,6 +136,29 @@ RemoteMedia.prototype = {
     return this._status;
   },
 
+  observe: function (aSubject, aTopic, aData) {
+    switch (aTopic) {
+      case "MediaPlayer:Playing":
+        if (this._status !== "started") {
+          this._status = "started";
+          if ("onRemoteMediaStatus" in this._listener) {
+            this._listener.onRemoteMediaStatus(this);
+          }
+        }
+        break;
+      case "MediaPlayer:Paused":
+        if (this._status !== "paused") {
+          this._status = "paused";
+          if ("onRemoteMediaStatus" in this._listener) {
+            this._listener.onRemoteMediaStatus(this);
+          }
+        }
+        break;
+      default:
+        break;
+    }
+  },
+
   _send: function(msg, data, callback) {
     data.id = this._id;
     send(msg, data, callback);