#ifndef CONTENT_BROWSER_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_
#define CONTENT_BROWSER_GAMEPAD_GAMEPAD_PLATFORM_DATA_FETCHER_WIN_H_
#include "build/build_config.h"
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <stdlib.h>
#include <Unknwn.h>
#include <WinDef.h>
#include <windows.h>
#include <XInput.h>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/message_loop/message_loop.h"
#include "base/scoped_native_library.h"
#include "content/browser/gamepad/gamepad_data_fetcher.h"
#include "content/browser/gamepad/gamepad_standard_mappings.h"
#include "content/browser/gamepad/raw_input_data_fetcher_win.h"
#include "third_party/WebKit/public/platform/WebGamepads.h"
namespace content {
class GamepadPlatformDataFetcherWin : public GamepadDataFetcher {
public:
GamepadPlatformDataFetcherWin();
virtual ~GamepadPlatformDataFetcherWin();
virtual void GetGamepadData(blink::WebGamepads* pads,
bool devices_changed_hint) OVERRIDE;
virtual void PauseHint(bool paused) OVERRIDE;
private:
bool GetXInputGamepadData(blink::WebGamepads* pads,
bool devices_changed_hint);
typedef void (WINAPI *XInputEnableFunc)(BOOL enable);
typedef DWORD (WINAPI *XInputGetCapabilitiesFunc)(
DWORD dwUserIndex, DWORD dwFlags, XINPUT_CAPABILITIES* pCapabilities);
typedef DWORD (WINAPI *XInputGetStateFunc)(
DWORD dwUserIndex, XINPUT_STATE* pState);
bool GetXInputDllFunctions();
void EnumerateDevices(blink::WebGamepads* pads);
bool GetXInputPadConnectivity(int i, blink::WebGamepad* pad) const;
void GetXInputPadData(int i, blink::WebGamepad* pad);
void GetRawInputPadData(int i, blink::WebGamepad* pad);
int FirstAvailableGamepadId() const;
bool HasXInputGamepad(int index) const;
bool HasRawInputGamepad(const HANDLE handle) const;
base::ScopedNativeLibrary xinput_dll_;
bool xinput_available_;
XInputEnableFunc xinput_enable_;
XInputGetCapabilitiesFunc xinput_get_capabilities_;
XInputGetStateFunc xinput_get_state_;
enum PadConnectionStatus {
DISCONNECTED,
XINPUT_CONNECTED,
RAWINPUT_CONNECTED
};
struct PadState {
PadConnectionStatus status;
GamepadStandardMappingFunction mapper;
int xinput_index;
HANDLE raw_input_handle;
};
PadState pad_state_[blink::WebGamepads::itemsLengthCap];
scoped_ptr<RawInputDataFetcher> raw_input_fetcher_;
DISALLOW_COPY_AND_ASSIGN(GamepadPlatformDataFetcherWin);
};
}
#endif