1 /* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef NativeWebWheelEvent_h 27 #define NativeWebWheelEvent_h 28 29 #include "WebEvent.h" 30 31 #if PLATFORM(MAC) 32 #include <wtf/RetainPtr.h> 33 OBJC_CLASS NSView; 34 #elif PLATFORM(QT) 35 #include <qgraphicssceneevent.h> 36 #elif PLATFORM(GTK) 37 typedef struct _GdkEventScroll GdkEventScroll; 38 #endif 39 40 namespace WebKit { 41 42 class NativeWebWheelEvent : public WebWheelEvent { 43 public: 44 #if PLATFORM(MAC) 45 NativeWebWheelEvent(NSEvent *, NSView *); 46 #elif PLATFORM(WIN) 47 NativeWebWheelEvent(HWND, UINT message, WPARAM, LPARAM); 48 #elif PLATFORM(QT) 49 explicit NativeWebWheelEvent(QGraphicsSceneWheelEvent*); 50 #elif PLATFORM(GTK) 51 NativeWebWheelEvent(GdkEventScroll*); 52 #endif 53 54 #if PLATFORM(MAC) nativeEvent()55 NSEvent* nativeEvent() const { return m_nativeEvent.get(); } 56 #elif PLATFORM(WIN) nativeEvent()57 const MSG* nativeEvent() const { return &m_nativeEvent; } 58 #elif PLATFORM(QT) nativeEvent()59 const QGraphicsSceneWheelEvent* nativeEvent() const { return m_nativeEvent; } 60 #elif PLATFORM(GTK) nativeEvent()61 GdkEventScroll* nativeEvent() const { return m_nativeEvent; } 62 #endif 63 64 private: 65 #if PLATFORM(MAC) 66 RetainPtr<NSEvent> m_nativeEvent; 67 #elif PLATFORM(WIN) 68 MSG m_nativeEvent; 69 #elif PLATFORM(QT) 70 QGraphicsSceneWheelEvent* m_nativeEvent; 71 #elif PLATFORM(GTK) 72 GdkEventScroll* m_nativeEvent; 73 #endif 74 }; 75 76 } // namespace WebKit 77 78 #endif // NativeWebWheelEvent_h 79