summaryrefslogtreecommitdiffstats
path: root/widget/windows/nsWinGesture.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--widget/windows/nsWinGesture.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/widget/windows/nsWinGesture.h b/widget/windows/nsWinGesture.h
new file mode 100644
index 0000000000..040b460da9
--- /dev/null
+++ b/widget/windows/nsWinGesture.h
@@ -0,0 +1,91 @@
+/* -*- 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"
+
+// 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();
+
+ // 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);
+
+ private:
+ // Delay load info
+ bool InitLibrary();
+
+ // 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__ */