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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/chromeos/extensions/media_player_event_router.h"
      6 
      7 #include "base/memory/singleton.h"
      8 #include "content/public/browser/browser_context.h"
      9 #include "extensions/browser/event_router.h"
     10 #include "extensions/browser/extension_system.h"
     11 
     12 namespace extensions {
     13 
     14 static void BroadcastEvent(content::BrowserContext* context,
     15                            const std::string& event_name) {
     16   if (context && EventRouter::Get(context)) {
     17     scoped_ptr<base::ListValue> args(new base::ListValue());
     18     scoped_ptr<extensions::Event> event(new extensions::Event(
     19         event_name, args.Pass()));
     20     EventRouter::Get(context)->BroadcastEvent(event.Pass());
     21   }
     22 }
     23 
     24 MediaPlayerEventRouter::MediaPlayerEventRouter(content::BrowserContext* context)
     25     : browser_context_(context) {}
     26 
     27 MediaPlayerEventRouter::~MediaPlayerEventRouter() {
     28 }
     29 
     30 void MediaPlayerEventRouter::NotifyNextTrack() {
     31   BroadcastEvent(browser_context_, "mediaPlayerPrivate.onNextTrack");
     32 }
     33 
     34 void MediaPlayerEventRouter::NotifyPrevTrack() {
     35   BroadcastEvent(browser_context_, "mediaPlayerPrivate.onPrevTrack");
     36 }
     37 
     38 void MediaPlayerEventRouter::NotifyTogglePlayState() {
     39   BroadcastEvent(browser_context_, "mediaPlayerPrivate.onTogglePlayState");
     40 }
     41 
     42 }  // namespace extensions
     43