--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/page/TouchGestureHandler.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,63 @@
+/*
+    Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef TouchGestureHandler_h
+#define TouchGestureHandler_h
+
+#include "PlatformTouchEvent.h"
+
+namespace WebCore {
+
+class TouchGestureHandler {
+
+public:
+    TouchGestureHandler();
+
+    void reset();
+    void updateTouchPoints(const Vector<const PlatformTouchPoint*>& touchPoints);
+
+    int translateX() const { return m_translate.x(); }
+    int translateY() const { return m_translate.y(); }
+    const IntPoint& pos() const { return m_pos; }
+    const IntPoint& screenPos() const { return m_screenPos; }
+    float scale() const { return m_scale; }
+    float rotate() const { return m_rotate; }
+
+private:
+    float calcAngle(const IntPoint& p1, const IntPoint& p2) const;
+    float diffAngle(float alpha, float beta) const;
+    IntPoint calcPos(const Vector<const PlatformTouchPoint*>& touchPoints) const;
+    float calcDistance(const IntPoint& p1, const IntPoint& p2) const;
+    void updateRefreshNeededState(const Vector<const PlatformTouchPoint*>& touchPoints);
+
+    bool m_refreshNeeded;
+    IntPoint m_translate;
+    float m_scale;
+    float m_rotate;
+    IntPoint m_pos;
+    IntPoint m_screenPos;
+    float m_prevAngle;
+    int m_prevSize;
+    int m_prevIds[2];
+    float m_prevDistance;
+};
+
+}
+
+#endif // TouchGestureHandler_h