forked from mirrors/gecko-dev
265e672179
# ignore-this-changeset --HG-- extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef WinGesture_h__
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#define WinGesture_h__
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/*
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* nsWinGesture - Touch input handling for tablet displays.
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*/
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#include "nsdefs.h"
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#include <winuser.h>
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#include <tpcshrd.h>
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#include "nsPoint.h"
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#include "mozilla/EventForwards.h"
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#include "mozilla/TouchEvents.h"
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// WM_TABLET_QUERYSYSTEMGESTURESTATUS return values
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#define TABLET_ROTATE_GESTURE_ENABLE 0x02000000
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class nsPointWin : public nsIntPoint {
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public:
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nsPointWin& operator=(const POINTS& aPoint) {
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x = aPoint.x;
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y = aPoint.y;
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return *this;
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}
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nsPointWin& operator=(const POINT& aPoint) {
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x = aPoint.x;
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y = aPoint.y;
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return *this;
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}
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nsPointWin& operator=(int val) {
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x = y = val;
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return *this;
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}
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void ScreenToClient(HWND hWnd) {
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POINT tmp;
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tmp.x = x;
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tmp.y = y;
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::ScreenToClient(hWnd, &tmp);
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*this = tmp;
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}
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};
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class nsWinGesture {
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public:
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nsWinGesture();
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public:
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bool SetWinGestureSupport(
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HWND hWnd, mozilla::WidgetGestureNotifyEvent::PanDirection aDirection);
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bool ShutdownWinGestureSupport();
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// Simple gesture process
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bool ProcessGestureMessage(HWND hWnd, WPARAM wParam, LPARAM lParam,
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mozilla::WidgetSimpleGestureEvent& evt);
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// Pan processing
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bool IsPanEvent(LPARAM lParam);
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bool ProcessPanMessage(HWND hWnd, WPARAM wParam, LPARAM lParam);
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bool PanDeltaToPixelScroll(mozilla::WidgetWheelEvent& aWheelEvent);
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void UpdatePanFeedbackX(HWND hWnd, int32_t scrollOverflow, bool& endFeedback);
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void UpdatePanFeedbackY(HWND hWnd, int32_t scrollOverflow, bool& endFeedback);
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void PanFeedbackFinalize(HWND hWnd, bool endFeedback);
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private:
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// Delay load info
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bool InitLibrary();
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// Pan and feedback state
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nsPointWin mPanIntermediate;
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nsPointWin mPanRefPoint;
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nsPointWin mPixelScrollDelta;
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bool mPanActive;
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bool mFeedbackActive;
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bool mXAxisFeedback;
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bool mYAxisFeedback;
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bool mPanInertiaActive;
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nsPointWin mPixelScrollOverflow;
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// Zoom state
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double mZoomIntermediate;
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// Rotate state
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double mRotateIntermediate;
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};
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#endif /* WinGesture_h__ */
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