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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef WinPointerEvents_h__
#define WinPointerEvents_h__
#include "mozilla/MouseEvents.h"
#include "touchinjection_sdk80.h"
#include <windef.h>
/******************************************************************************
* WinPointerInfo
*
* This is a helper class to handle WM_POINTER*. It only supports Win8 or later.
*
******************************************************************************/
class WinPointerInfo final : public mozilla::WidgetPointerHelper {
public:
WinPointerInfo() : WidgetPointerHelper(), mPressure(0), mButtons(0) {}
WinPointerInfo(uint32_t aPointerId, uint32_t aTiltX, uint32_t aTiltY,
float aPressure, int16_t aButtons)
: WidgetPointerHelper(aPointerId, aTiltX, aTiltY),
mPressure(aPressure),
mButtons(aButtons) {}
float mPressure;
int16_t mButtons;
};
class WinPointerEvents final {
public:
explicit WinPointerEvents();
public:
bool ShouldHandleWinPointerMessages(UINT aMsg, WPARAM aWParam);
uint32_t GetPointerId(WPARAM aWParam) {
return GET_POINTERID_WPARAM(aWParam);
}
bool GetPointerType(uint32_t aPointerId, POINTER_INPUT_TYPE* aPointerType);
POINTER_INPUT_TYPE GetPointerType(uint32_t aPointerId);
bool GetPointerInfo(uint32_t aPointerId, POINTER_INFO* aPointerInfo);
bool GetPointerPenInfo(uint32_t aPointerId, POINTER_PEN_INFO* aPenInfo);
bool ShouldRollupOnPointerEvent(UINT aMsg, WPARAM aWParam);
bool ShouldFirePointerEventByWinPointerMessages();
WinPointerInfo* GetCachedPointerInfo(UINT aMsg, WPARAM aWParam);
void ConvertAndCachePointerInfo(UINT aMsg, WPARAM aWParam);
void ConvertAndCachePointerInfo(WPARAM aWParam, WinPointerInfo* aInfo);
private:
// Function prototypes
typedef BOOL(WINAPI* GetPointerTypePtr)(uint32_t aPointerId,
POINTER_INPUT_TYPE* aPointerType);
typedef BOOL(WINAPI* GetPointerInfoPtr)(uint32_t aPointerId,
POINTER_INFO* aPointerInfo);
typedef BOOL(WINAPI* GetPointerPenInfoPtr)(uint32_t aPointerId,
POINTER_PEN_INFO* aPenInfo);
void InitLibrary();
static HMODULE sLibraryHandle;
static const wchar_t kPointerLibraryName[];
// Static function pointers
static GetPointerTypePtr getPointerType;
static GetPointerInfoPtr getPointerInfo;
static GetPointerPenInfoPtr getPointerPenInfo;
WinPointerInfo mPenPointerDownInfo;
WinPointerInfo mPenPointerUpInfo;
WinPointerInfo mPenPointerUpdateInfo;
};
#endif // #ifndef WinPointerEvents_h__
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