diff -r 000000000000 -r 6474c204b198 mobile/android/base/MediaCastingBar.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/MediaCastingBar.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,118 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko;
+
+import org.mozilla.gecko.util.GeckoEventListener;
+import org.mozilla.gecko.util.ThreadUtils;
+
+import org.json.JSONObject;
+
+import android.content.Context;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.ImageButton;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+public class MediaCastingBar extends RelativeLayout implements View.OnClickListener, GeckoEventListener  {
+    private static final String LOGTAG = "MediaCastingBar";
+
+    private TextView mCastingTo;
+    private ImageButton mMediaPlay;
+    private ImageButton mMediaPause;
+    private ImageButton mMediaStop;
+
+    private boolean mInflated = false;
+
+    public MediaCastingBar(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        GeckoAppShell.getEventDispatcher().registerEventListener("Casting:Started", this);
+        GeckoAppShell.getEventDispatcher().registerEventListener("Casting:Stopped", this);
+    }
+
+    public void inflateContent() {
+        LayoutInflater inflater = LayoutInflater.from(getContext());
+        View content = inflater.inflate(R.layout.media_casting, this);
+
+        mMediaPlay = (ImageButton) content.findViewById(R.id.media_play);
+        mMediaPlay.setOnClickListener(this);
+        mMediaPause = (ImageButton) content.findViewById(R.id.media_pause);
+        mMediaPause.setOnClickListener(this);
+        mMediaStop = (ImageButton) content.findViewById(R.id.media_stop);
+        mMediaStop.setOnClickListener(this);
+
+        mCastingTo = (TextView) content.findViewById(R.id.media_casting_to);
+
+        // Capture clicks on the rest of the view to prevent them from
+        // leaking into other views positioned below.
+        content.setOnClickListener(this);
+
+        mInflated = true;
+    }
+
+    public void show() {
+        if (!mInflated)
+            inflateContent();
+
+        setVisibility(VISIBLE);
+    }
+
+    public void hide() {
+        setVisibility(GONE);
+    }
+
+    public void onDestroy() {
+        GeckoAppShell.getEventDispatcher().unregisterEventListener("Casting:Started", this);
+        GeckoAppShell.getEventDispatcher().unregisterEventListener("Casting:Stopped", this);
+    }
+
+    // View.OnClickListener implementation
+    @Override
+    public void onClick(View v) {
+        final int viewId = v.getId();
+
+        if (viewId == R.id.media_play) {
+            GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Casting:Play", ""));
+            mMediaPlay.setVisibility(GONE);
+            mMediaPause.setVisibility(VISIBLE);
+        } else if (viewId == R.id.media_pause) {
+            GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Casting:Pause", ""));
+            mMediaPause.setVisibility(GONE);
+            mMediaPlay.setVisibility(VISIBLE);
+        } else if (viewId == R.id.media_stop) {
+            GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Casting:Stop", ""));
+        }
+    }
+
+    // GeckoEventListener implementation
+    @Override
+    public void handleMessage(final String event, final JSONObject message) {
+        final String device = message.optString("device");
+
+        ThreadUtils.postToUiThread(new Runnable() {
+            @Override
+            public void run() {
+                if (event.equals("Casting:Started")) {
+                    show();
+                    if (!TextUtils.isEmpty(device)) {
+                        mCastingTo.setText(device);
+                    } else {
+                        // Should not happen
+                        mCastingTo.setText("");
+                        Log.d(LOGTAG, "Device name is empty.");
+                    }
+                    mMediaPlay.setVisibility(GONE);
+                    mMediaPause.setVisibility(VISIBLE);
+                } else if (event.equals("Casting:Stopped")) {
+                    hide();
+                }
+            }
+        });
+    }
+}