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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_
#define CONTENT_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_
#include "base/memory/scoped_ptr.h"
#include "base/memory/shared_memory.h"
#include "content/common/gamepad_messages.h"
#include "content/public/renderer/renderer_gamepad_provider.h"
#include "third_party/WebKit/public/platform/WebGamepads.h"
namespace content {
struct GamepadHardwareBuffer;
class GamepadSharedMemoryReader : public RendererGamepadProvider {
public:
explicit GamepadSharedMemoryReader(RenderThread* thread);
virtual ~GamepadSharedMemoryReader();
// RendererGamepadProvider implementation.
virtual void SampleGamepads(
blink::WebGamepads& gamepads) OVERRIDE;
virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
virtual void Start(blink::WebPlatformEventListener* listener) OVERRIDE;
protected:
// PlatformEventObserver protected methods.
virtual void SendStartMessage() OVERRIDE;
virtual void SendStopMessage() OVERRIDE;
private:
void OnGamepadConnected(int index, const blink::WebGamepad& gamepad);
void OnGamepadDisconnected(int index, const blink::WebGamepad& gamepad);
base::SharedMemoryHandle renderer_shared_memory_handle_;
scoped_ptr<base::SharedMemory> renderer_shared_memory_;
GamepadHardwareBuffer* gamepad_hardware_buffer_;
bool ever_interacted_with_;
DISALLOW_COPY_AND_ASSIGN(GamepadSharedMemoryReader);
};
} // namespace content
#endif // CONTENT_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_
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