1 /* 2 * Copyright (C) 2012 Google 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 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * 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 THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef GestureEvent_h 27 #define GestureEvent_h 28 29 #include "core/dom/EventDispatcher.h" 30 #include "core/dom/MouseRelatedEvent.h" 31 #include "core/platform/PlatformGestureEvent.h" 32 33 namespace WebCore { 34 35 class GestureEvent : public MouseRelatedEvent { 36 public: 37 virtual ~GestureEvent() { } 38 39 static PassRefPtr<GestureEvent> create(); 40 static PassRefPtr<GestureEvent> create(PassRefPtr<AbstractView>, const PlatformGestureEvent&); 41 42 void initGestureEvent(const AtomicString& type, PassRefPtr<AbstractView>, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, float deltaX, float deltaY); 43 44 virtual bool isGestureEvent() const OVERRIDE; 45 46 virtual const AtomicString& interfaceName() const; 47 48 float deltaX() const { return m_deltaX; } 49 float deltaY() const { return m_deltaY; } 50 51 private: 52 GestureEvent(); 53 GestureEvent(const AtomicString& type, PassRefPtr<AbstractView>, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, float deltaX, float deltaY); 54 55 float m_deltaX; 56 float m_deltaY; 57 }; 58 59 class GestureEventDispatchMediator : public EventDispatchMediator { 60 public: 61 static PassRefPtr<GestureEventDispatchMediator> create(PassRefPtr<GestureEvent> gestureEvent) 62 { 63 return adoptRef(new GestureEventDispatchMediator(gestureEvent)); 64 } 65 66 private: 67 explicit GestureEventDispatchMediator(PassRefPtr<GestureEvent>); 68 69 GestureEvent* event() const; 70 71 virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE; 72 }; 73 74 inline GestureEvent* toGestureEvent(Event* event) 75 { 76 ASSERT(event && event->isGestureEvent()); 77 return static_cast<GestureEvent*>(event); 78 } 79 80 } // namespace WebCore 81 82 #endif // GestureEvent_h 83
