| // 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/render_process_observer.h" |
| #include "content/public/renderer/renderer_gamepad_provider.h" |
| #include "third_party/WebKit/public/platform/WebGamepads.h" |
| |
| namespace content { |
| |
| struct GamepadHardwareBuffer; |
| class RendererWebKitPlatformSupportImpl; |
| |
| class GamepadSharedMemoryReader |
| : public RenderProcessObserver, |
| public RendererGamepadProvider { |
| public: |
| GamepadSharedMemoryReader( |
| RendererWebKitPlatformSupportImpl* webkit_platform_support); |
| virtual ~GamepadSharedMemoryReader(); |
| |
| // RendererGamepadProvider implementation. |
| virtual void SampleGamepads( |
| blink::WebGamepads& gamepads) OVERRIDE; |
| virtual void SetGamepadListener( |
| blink::WebGamepadListener* listener) OVERRIDE; |
| |
| // RenderProcessObserver implementation. |
| virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE; |
| |
| private: |
| void OnGamepadConnected(int index, const blink::WebGamepad& gamepad); |
| void OnGamepadDisconnected(int index, const blink::WebGamepad& gamepad); |
| |
| void StartPollingIfNecessary(); |
| void StopPollingIfNecessary(); |
| |
| base::SharedMemoryHandle renderer_shared_memory_handle_; |
| scoped_ptr<base::SharedMemory> renderer_shared_memory_; |
| GamepadHardwareBuffer* gamepad_hardware_buffer_; |
| blink::WebGamepadListener* gamepad_listener_; |
| |
| bool is_polling_; |
| bool ever_interacted_with_; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_ |