mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-29 07:42:04 +00:00
118598553f
MozReview-Commit-ID: 1FWJypkoqYz --HG-- extra : rebase_source : b3faef1abb72e8230ac70a963be96c19392632d4
289 lines
10 KiB
C++
289 lines
10 KiB
C++
/* -*- 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 WinGesture_h__
|
|
#define WinGesture_h__
|
|
|
|
/*
|
|
* nsWinGesture - Touch input handling for tablet displays.
|
|
*/
|
|
|
|
#include "nsdefs.h"
|
|
#include <winuser.h>
|
|
#include <tpcshrd.h>
|
|
#include "nsPoint.h"
|
|
#include "mozilla/EventForwards.h"
|
|
#include "mozilla/TouchEvents.h"
|
|
|
|
// Desktop builds target apis for 502. Win8 Metro builds target 602.
|
|
#if WINVER < 0x0602
|
|
|
|
DECLARE_HANDLE(HGESTUREINFO);
|
|
|
|
/*
|
|
* Gesture flags - GESTUREINFO.dwFlags
|
|
*/
|
|
#define GF_BEGIN 0x00000001
|
|
#define GF_INERTIA 0x00000002
|
|
#define GF_END 0x00000004
|
|
|
|
/*
|
|
* Gesture configuration structure
|
|
* - Used in SetGestureConfig and GetGestureConfig
|
|
* - Note that any setting not included in either GESTURECONFIG.dwWant or
|
|
* GESTURECONFIG.dwBlock will use the parent window's preferences or
|
|
* system defaults.
|
|
*/
|
|
typedef struct tagGESTURECONFIG {
|
|
DWORD dwID; // gesture ID
|
|
DWORD dwWant; // settings related to gesture ID that are to be turned on
|
|
DWORD dwBlock; // settings related to gesture ID that are to be turned off
|
|
} GESTURECONFIG, *PGESTURECONFIG;
|
|
|
|
/*
|
|
* Gesture information structure
|
|
* - Pass the HGESTUREINFO received in the WM_GESTURE message lParam into the
|
|
* GetGestureInfo function to retrieve this information.
|
|
* - If cbExtraArgs is non-zero, pass the HGESTUREINFO received in the WM_GESTURE
|
|
* message lParam into the GetGestureExtraArgs function to retrieve extended
|
|
* argument information.
|
|
*/
|
|
typedef struct tagGESTUREINFO {
|
|
UINT cbSize; // size, in bytes, of this structure (including variable length Args field)
|
|
DWORD dwFlags; // see GF_* flags
|
|
DWORD dwID; // gesture ID, see GID_* defines
|
|
HWND hwndTarget; // handle to window targeted by this gesture
|
|
POINTS ptsLocation; // current location of this gesture
|
|
DWORD dwInstanceID; // internally used
|
|
DWORD dwSequenceID; // internally used
|
|
ULONGLONG ullArguments; // arguments for gestures whose arguments fit in 8 BYTES
|
|
UINT cbExtraArgs; // size, in bytes, of extra arguments, if any, that accompany this gesture
|
|
} GESTUREINFO, *PGESTUREINFO;
|
|
typedef GESTUREINFO const * PCGESTUREINFO;
|
|
|
|
/*
|
|
* Gesture notification structure
|
|
* - The WM_GESTURENOTIFY message lParam contains a pointer to this structure.
|
|
* - The WM_GESTURENOTIFY message notifies a window that gesture recognition is
|
|
* in progress and a gesture will be generated if one is recognized under the
|
|
* current gesture settings.
|
|
*/
|
|
typedef struct tagGESTURENOTIFYSTRUCT {
|
|
UINT cbSize; // size, in bytes, of this structure
|
|
DWORD dwFlags; // unused
|
|
HWND hwndTarget; // handle to window targeted by the gesture
|
|
POINTS ptsLocation; // starting location
|
|
DWORD dwInstanceID; // internally used
|
|
} GESTURENOTIFYSTRUCT, *PGESTURENOTIFYSTRUCT;
|
|
|
|
|
|
/*
|
|
* Gesture argument helpers
|
|
* - Angle should be a double in the range of -2pi to +2pi
|
|
* - Argument should be an unsigned 16-bit value
|
|
*/
|
|
#define GID_ROTATE_ANGLE_TO_ARGUMENT(_arg_) ((USHORT)((((_arg_) + 2.0 * 3.14159265) / (4.0 * 3.14159265)) * 65535.0))
|
|
#define GID_ROTATE_ANGLE_FROM_ARGUMENT(_arg_) ((((double)(_arg_) / 65535.0) * 4.0 * 3.14159265) - 2.0 * 3.14159265)
|
|
|
|
/*
|
|
* Gesture configuration flags
|
|
*/
|
|
#define GC_ALLGESTURES 0x00000001
|
|
|
|
#define GC_ZOOM 0x00000001
|
|
|
|
#define GC_PAN 0x00000001
|
|
#define GC_PAN_WITH_SINGLE_FINGER_VERTICALLY 0x00000002
|
|
#define GC_PAN_WITH_SINGLE_FINGER_HORIZONTALLY 0x00000004
|
|
#define GC_PAN_WITH_GUTTER 0x00000008
|
|
#define GC_PAN_WITH_INERTIA 0x00000010
|
|
|
|
#define GC_ROTATE 0x00000001
|
|
|
|
#define GC_TWOFINGERTAP 0x00000001
|
|
|
|
#define GC_PRESSANDTAP 0x00000001
|
|
|
|
/*
|
|
* Gesture IDs
|
|
*/
|
|
#define GID_BEGIN 1
|
|
#define GID_END 2
|
|
#define GID_ZOOM 3
|
|
#define GID_PAN 4
|
|
#define GID_ROTATE 5
|
|
#define GID_TWOFINGERTAP 6
|
|
#define GID_PRESSANDTAP 7
|
|
|
|
// Maximum number of gestures that can be included
|
|
// in a single call to SetGestureConfig / GetGestureConfig
|
|
#define GESTURECONFIGMAXCOUNT 256
|
|
|
|
// If specified, GetGestureConfig returns consolidated configuration
|
|
// for the specified window and it's parent window chain
|
|
#define GCF_INCLUDE_ANCESTORS 0x00000001
|
|
|
|
// Window events we need to respond to or receive
|
|
#define WM_GESTURE 0x0119
|
|
#define WM_GESTURENOTIFY 0x011A
|
|
|
|
typedef struct _TOUCHINPUT {
|
|
LONG x;
|
|
LONG y;
|
|
HANDLE hSource;
|
|
DWORD dwID;
|
|
DWORD dwFlags;
|
|
DWORD dwMask;
|
|
DWORD dwTime;
|
|
ULONG_PTR dwExtraInfo;
|
|
DWORD cxContact;
|
|
DWORD cyContact;
|
|
} TOUCHINPUT, *PTOUCHINPUT;
|
|
|
|
typedef HANDLE HTOUCHINPUT;
|
|
|
|
#define WM_TOUCH 0x0240
|
|
|
|
#define TOUCHEVENTF_MOVE 0x0001
|
|
#define TOUCHEVENTF_DOWN 0x0002
|
|
#define TOUCHEVENTF_UP 0x0004
|
|
#define TOUCHEVENTF_INRANGE 0x0008
|
|
#define TOUCHEVENTF_PRIMARY 0x0010
|
|
#define TOUCHEVENTF_NOCOALESCE 0x0020
|
|
#define TOUCHEVENTF_PEN 0x0040
|
|
#define TOUCHEVENTF_PALM 0x0080
|
|
|
|
#define TOUCHINPUTMASKF_TIMEFROMSYSTEM 0x0001
|
|
#define TOUCHINPUTMASKF_EXTRAINFO 0x0002
|
|
#define TOUCHINPUTMASKF_CONTACTAREA 0x0004
|
|
|
|
#define TOUCH_COORD_TO_PIXEL(C) (C/100)
|
|
|
|
#define TWF_FINETOUCH 0x0001
|
|
#define TWF_WANTPALM 0x0002
|
|
|
|
#endif // WINVER < 0x0602
|
|
|
|
// WM_TABLET_QUERYSYSTEMGESTURESTATUS return values
|
|
#define TABLET_ROTATE_GESTURE_ENABLE 0x02000000
|
|
|
|
class nsPointWin : public nsIntPoint
|
|
{
|
|
public:
|
|
nsPointWin& operator=(const POINTS& aPoint) {
|
|
x = aPoint.x; y = aPoint.y;
|
|
return *this;
|
|
}
|
|
nsPointWin& operator=(const POINT& aPoint) {
|
|
x = aPoint.x; y = aPoint.y;
|
|
return *this;
|
|
}
|
|
nsPointWin& operator=(int val) {
|
|
x = y = val;
|
|
return *this;
|
|
}
|
|
void ScreenToClient(HWND hWnd) {
|
|
POINT tmp;
|
|
tmp.x = x; tmp.y = y;
|
|
::ScreenToClient(hWnd, &tmp);
|
|
*this = tmp;
|
|
}
|
|
};
|
|
|
|
class nsWinGesture
|
|
{
|
|
public:
|
|
nsWinGesture();
|
|
|
|
public:
|
|
bool SetWinGestureSupport(HWND hWnd, mozilla::WidgetGestureNotifyEvent::PanDirection aDirection);
|
|
bool ShutdownWinGestureSupport();
|
|
bool RegisterTouchWindow(HWND hWnd);
|
|
bool UnregisterTouchWindow(HWND hWnd);
|
|
bool GetTouchInputInfo(HTOUCHINPUT hTouchInput, uint32_t cInputs, PTOUCHINPUT pInputs);
|
|
bool CloseTouchInputHandle(HTOUCHINPUT hTouchInput);
|
|
bool IsAvailable();
|
|
|
|
// Simple gesture process
|
|
bool ProcessGestureMessage(HWND hWnd, WPARAM wParam, LPARAM lParam, mozilla::WidgetSimpleGestureEvent& evt);
|
|
|
|
// Pan processing
|
|
bool IsPanEvent(LPARAM lParam);
|
|
bool ProcessPanMessage(HWND hWnd, WPARAM wParam, LPARAM lParam);
|
|
bool PanDeltaToPixelScroll(mozilla::WidgetWheelEvent& aWheelEvent);
|
|
void UpdatePanFeedbackX(HWND hWnd, int32_t scrollOverflow, bool& endFeedback);
|
|
void UpdatePanFeedbackY(HWND hWnd, int32_t scrollOverflow, bool& endFeedback);
|
|
void PanFeedbackFinalize(HWND hWnd, bool endFeedback);
|
|
|
|
public:
|
|
// Helpers
|
|
bool GetGestureInfo(HGESTUREINFO hGestureInfo, PGESTUREINFO pGestureInfo);
|
|
bool CloseGestureInfoHandle(HGESTUREINFO hGestureInfo);
|
|
bool GetGestureExtraArgs(HGESTUREINFO hGestureInfo, UINT cbExtraArgs, PBYTE pExtraArgs);
|
|
bool SetGestureConfig(HWND hWnd, UINT cIDs, PGESTURECONFIG pGestureConfig);
|
|
bool GetGestureConfig(HWND hWnd, DWORD dwFlags, PUINT pcIDs, PGESTURECONFIG pGestureConfig);
|
|
bool BeginPanningFeedback(HWND hWnd);
|
|
bool EndPanningFeedback(HWND hWnd);
|
|
bool UpdatePanningFeedback(HWND hWnd, LONG offsetX, LONG offsetY, BOOL fInInertia);
|
|
|
|
protected:
|
|
|
|
private:
|
|
// Function prototypes
|
|
typedef BOOL (WINAPI * GetGestureInfoPtr)(HGESTUREINFO hGestureInfo, PGESTUREINFO pGestureInfo);
|
|
typedef BOOL (WINAPI * CloseGestureInfoHandlePtr)(HGESTUREINFO hGestureInfo);
|
|
typedef BOOL (WINAPI * GetGestureExtraArgsPtr)(HGESTUREINFO hGestureInfo, UINT cbExtraArgs, PBYTE pExtraArgs);
|
|
typedef BOOL (WINAPI * SetGestureConfigPtr)(HWND hwnd, DWORD dwReserved, UINT cIDs, PGESTURECONFIG pGestureConfig, UINT cbSize);
|
|
typedef BOOL (WINAPI * GetGestureConfigPtr)(HWND hwnd, DWORD dwReserved, DWORD dwFlags, PUINT pcIDs, PGESTURECONFIG pGestureConfig, UINT cbSize);
|
|
typedef BOOL (WINAPI * BeginPanningFeedbackPtr)(HWND hWnd);
|
|
typedef BOOL (WINAPI * EndPanningFeedbackPtr)(HWND hWnd, BOOL fAnimateBack);
|
|
typedef BOOL (WINAPI * UpdatePanningFeedbackPtr)(HWND hWnd, LONG offsetX, LONG offsetY, BOOL fInInertia);
|
|
typedef BOOL (WINAPI * RegisterTouchWindowPtr)(HWND hWnd, ULONG flags);
|
|
typedef BOOL (WINAPI * UnregisterTouchWindowPtr)(HWND hWnd);
|
|
typedef BOOL (WINAPI * GetTouchInputInfoPtr)(HTOUCHINPUT hTouchInput, uint32_t cInputs, PTOUCHINPUT pInputs, int32_t cbSize);
|
|
typedef BOOL (WINAPI * CloseTouchInputHandlePtr)(HTOUCHINPUT hTouchInput);
|
|
|
|
// Static function pointers
|
|
static GetGestureInfoPtr getGestureInfo;
|
|
static CloseGestureInfoHandlePtr closeGestureInfoHandle;
|
|
static GetGestureExtraArgsPtr getGestureExtraArgs;
|
|
static SetGestureConfigPtr setGestureConfig;
|
|
static GetGestureConfigPtr getGestureConfig;
|
|
static BeginPanningFeedbackPtr beginPanningFeedback;
|
|
static EndPanningFeedbackPtr endPanningFeedback;
|
|
static UpdatePanningFeedbackPtr updatePanningFeedback;
|
|
static RegisterTouchWindowPtr registerTouchWindow;
|
|
static UnregisterTouchWindowPtr unregisterTouchWindow;
|
|
static GetTouchInputInfoPtr getTouchInputInfo;
|
|
static CloseTouchInputHandlePtr closeTouchInputHandle;
|
|
|
|
// Delay load info
|
|
bool InitLibrary();
|
|
|
|
static HMODULE sLibraryHandle;
|
|
static const wchar_t kGestureLibraryName[];
|
|
|
|
// Pan and feedback state
|
|
nsPointWin mPanIntermediate;
|
|
nsPointWin mPanRefPoint;
|
|
nsPointWin mPixelScrollDelta;
|
|
bool mPanActive;
|
|
bool mFeedbackActive;
|
|
bool mXAxisFeedback;
|
|
bool mYAxisFeedback;
|
|
bool mPanInertiaActive;
|
|
nsPointWin mPixelScrollOverflow;
|
|
|
|
// Zoom state
|
|
double mZoomIntermediate;
|
|
|
|
// Rotate state
|
|
double mRotateIntermediate;
|
|
};
|
|
|
|
#endif /* WinGesture_h__ */
|
|
|
|
|