WebCore/PlatformTouchEvent.h

   1 /*
   2  * Copyright (C) 2008, Apple Inc. All rights reserved.
   3  *
   4  * No license or rights are granted by Apple expressly or by implication,
   5  * estoppel, or otherwise, to Apple copyrights, patents, trademarks, trade
   6  * secrets or other rights.
   7  */
   8
   9 #ifndef PlatformTouchEvent_h
  10 #define PlatformTouchEvent_h
  11
  12 #include <JavaScriptCore/Platform.h>
  13
  14 #if ENABLE(TOUCH_EVENTS)
  15
  16 #include <GraphicsServices/GSEvent.h>
  17 #include <wtf/Vector.h>
  18
  19 #include "IntPoint.h"
  20
  21 namespace WebCore {
  22
  23     enum TouchEventType { TouchEventBegin, TouchEventChange, TouchEventEnd, TouchEventCancel };
  24
  25     class PlatformTouchEvent {
  26     public:
  27         PlatformTouchEvent(GSEventRef);
  28
  29         TouchEventType eventType() const;
  30         double timestamp() const;
  31         unsigned touchCount() const;
  32         IntPoint touchLocationAtIndex(unsigned) const;
  33         IntPoint globalTouchLocationAtIndex(unsigned) const;
  34         unsigned touchIdentifierAtIndex(unsigned) const;
  35
  36         bool gestureChanged() const;
  37
  38         float scaleAbsolute() const;
  39         float rotationAbsolute() const;
  40
  41         GSEventRef platformEvent() const { return m_gsEvent; }
  42     private:
  43         GSEventRef m_gsEvent;
  44         unsigned m_fingerCount;
  45         Vector<GSEventPathInfo> m_pathData;
  46     };
  47 } // namespace WebCore
  48
  49 #endif // ENABLE(TOUCH_EVENTS)
  50
  51 #endif // PlatformTouchEvent_h