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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 #ifndef CONTENT_BROWSER_RENDERER_HOST_GAMEPAD_BROWSER_MESSAGE_FILTER_H_
      6 #define CONTENT_BROWSER_RENDERER_HOST_GAMEPAD_BROWSER_MESSAGE_FILTER_H_
      7 
      8 #include "base/compiler_specific.h"
      9 #include "base/memory/shared_memory.h"
     10 #include "content/browser/gamepad/gamepad_consumer.h"
     11 #include "content/public/browser/browser_message_filter.h"
     12 
     13 namespace content {
     14 
     15 class GamepadService;
     16 class RenderProcessHost;
     17 
     18 class GamepadBrowserMessageFilter :
     19     public BrowserMessageFilter,
     20     public GamepadConsumer {
     21  public:
     22   GamepadBrowserMessageFilter();
     23 
     24   // BrowserMessageFilter implementation.
     25   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     26 
     27   // GamepadConsumer implementation.
     28   virtual void OnGamepadConnected(
     29       unsigned index,
     30       const blink::WebGamepad& gamepad) OVERRIDE;
     31   virtual void OnGamepadDisconnected(
     32       unsigned index,
     33       const blink::WebGamepad& gamepad) OVERRIDE;
     34 
     35  private:
     36   virtual ~GamepadBrowserMessageFilter();
     37 
     38   void OnGamepadStartPolling(base::SharedMemoryHandle* renderer_handle);
     39   void OnGamepadStopPolling();
     40 
     41   bool is_started_;
     42 
     43   DISALLOW_COPY_AND_ASSIGN(GamepadBrowserMessageFilter);
     44 };
     45 
     46 }  // namespace content
     47 
     48 #endif  // CONTENT_BROWSER_RENDERER_HOST_GAMEPAD_BROWSER_MESSAGE_FILTER_H_
     49