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Diffstat (limited to '')
| -rw-r--r-- | widget/windows/WinPointerEvents.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/widget/windows/WinPointerEvents.h b/widget/windows/WinPointerEvents.h new file mode 100644 index 0000000000..6bded07d06 --- /dev/null +++ b/widget/windows/WinPointerEvents.h @@ -0,0 +1,174 @@ +/* -*- 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 "nsWindowBase.h" + +// Define PointerEvent related macros and structures when building code on +// Windows version before Win8. +#if WINVER < 0x0602 + +// These definitions are copied from WinUser.h. Some of them are not used but +// keep them here for future usage. +# define WM_NCPOINTERUPDATE 0x0241 +# define WM_NCPOINTERDOWN 0x0242 +# define WM_NCPOINTERUP 0x0243 +# define WM_POINTERUPDATE 0x0245 +# define WM_POINTERDOWN 0x0246 +# define WM_POINTERUP 0x0247 +# define WM_POINTERENTER 0x0249 +# define WM_POINTERLEAVE 0x024A +# define WM_POINTERACTIVATE 0x024B +# define WM_POINTERCAPTURECHANGED 0x024C +# define WM_TOUCHHITTESTING 0x024D +# define WM_POINTERWHEEL 0x024E +# define WM_POINTERHWHEEL 0x024F +# define DM_POINTERHITTEST 0x0250 + +typedef UINT32 PEN_FLAGS; +# define PEN_FLAG_NONE 0x00000000 // Default +# define PEN_FLAG_BARREL 0x00000001 // The barrel button is pressed +# define PEN_FLAG_INVERTED 0x00000002 // The pen is inverted +# define PEN_FLAG_ERASER 0x00000004 // The eraser button is pressed + +typedef UINT32 PEN_MASK; +# define PEN_MASK_NONE \ + 0x00000000 // Default - none of the optional fields are valid +# define PEN_MASK_PRESSURE 0x00000001 // The pressure field is valid +# define PEN_MASK_ROTATION 0x00000002 // The rotation field is valid +# define PEN_MASK_TILT_X 0x00000004 // The tiltX field is valid +# define PEN_MASK_TILT_Y 0x00000008 // The tiltY field is valid + +typedef struct tagPOINTER_PEN_INFO { + POINTER_INFO pointerInfo; + PEN_FLAGS penFlags; + PEN_MASK penMask; + UINT32 pressure; + UINT32 rotation; + INT32 tiltX; + INT32 tiltY; +} POINTER_PEN_INFO; + +/* + * Flags that appear in pointer input message parameters + */ +# define POINTER_MESSAGE_FLAG_NEW 0x00000001 // New pointer +# define POINTER_MESSAGE_FLAG_INRANGE 0x00000002 // Pointer has not departed +# define POINTER_MESSAGE_FLAG_INCONTACT 0x00000004 // Pointer is in contact +# define POINTER_MESSAGE_FLAG_FIRSTBUTTON 0x00000010 // Primary action +# define POINTER_MESSAGE_FLAG_SECONDBUTTON 0x00000020 // Secondary action +# define POINTER_MESSAGE_FLAG_THIRDBUTTON 0x00000040 // Third button +# define POINTER_MESSAGE_FLAG_FOURTHBUTTON 0x00000080 // Fourth button +# define POINTER_MESSAGE_FLAG_FIFTHBUTTON 0x00000100 // Fifth button +# define POINTER_MESSAGE_FLAG_PRIMARY 0x00002000 // Pointer is primary +# define POINTER_MESSAGE_FLAG_CONFIDENCE \ + 0x00004000 // Pointer is considered unlikely to be accidental +# define POINTER_MESSAGE_FLAG_CANCELED \ + 0x00008000 // Pointer is departing in an abnormal manner + +/* + * Macros to retrieve information from pointer input message parameters + */ +# define GET_POINTERID_WPARAM(wParam) (LOWORD(wParam)) +# define IS_POINTER_FLAG_SET_WPARAM(wParam, flag) \ + (((DWORD)HIWORD(wParam) & (flag)) == (flag)) +# define IS_POINTER_NEW_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_NEW) +# define IS_POINTER_INRANGE_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_INRANGE) +# define IS_POINTER_INCONTACT_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_INCONTACT) +# define IS_POINTER_FIRSTBUTTON_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_FIRSTBUTTON) +# define IS_POINTER_SECONDBUTTON_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_SECONDBUTTON) +# define IS_POINTER_THIRDBUTTON_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_THIRDBUTTON) +# define IS_POINTER_FOURTHBUTTON_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_FOURTHBUTTON) +# define IS_POINTER_FIFTHBUTTON_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_FIFTHBUTTON) +# define IS_POINTER_PRIMARY_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_PRIMARY) +# define HAS_POINTER_CONFIDENCE_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_CONFIDENCE) +# define IS_POINTER_CANCELED_WPARAM(wParam) \ + IS_POINTER_FLAG_SET_WPARAM(wParam, POINTER_MESSAGE_FLAG_CANCELED) + +/* + * WM_POINTERACTIVATE return codes + */ +# define PA_ACTIVATE MA_ACTIVATE +# define PA_NOACTIVATE MA_NOACTIVATE + +#endif // WINVER < 0x0602 + +/****************************************************************************** + * 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 ShouldEnableInkCollector(); + 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__ |