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      1 // Copyright (c) 2011 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_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_
      6 #define CONTENT_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "base/memory/shared_memory.h"
     10 #include "third_party/WebKit/public/platform/WebGamepads.h"
     11 
     12 namespace content {
     13 
     14 struct GamepadHardwareBuffer;
     15 
     16 class GamepadSharedMemoryReader {
     17  public:
     18   GamepadSharedMemoryReader();
     19   virtual ~GamepadSharedMemoryReader();
     20   void SampleGamepads(WebKit::WebGamepads&);
     21 
     22  private:
     23   base::SharedMemoryHandle renderer_shared_memory_handle_;
     24   scoped_ptr<base::SharedMemory> renderer_shared_memory_;
     25   GamepadHardwareBuffer* gamepad_hardware_buffer_;
     26 
     27   bool ever_interacted_with_;
     28 };
     29 
     30 }  // namespace content
     31 
     32 #endif  // CONTENT_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_
     33