1 /* 2 * Copyright (C) 2001 Peter Kelly (pmk (at) post.com) 3 * Copyright (C) 2001 Tobias Anton (anton (at) stud.fbi.fh-darmstadt.de) 4 * Copyright (C) 2006 Samuel Weinig (sam.weinig (at) gmail.com) 5 * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #include "config.h" 24 #include "WheelEvent.h" 25 26 #include "EventNames.h" 27 #include <wtf/MathExtras.h> 28 29 namespace WebCore { 30 31 WheelEvent::WheelEvent() 32 : m_wheelDeltaX(0) 33 , m_wheelDeltaY(0) 34 { 35 } 36 37 WheelEvent::WheelEvent(float wheelTicksX, float wheelTicksY, PassRefPtr<AbstractView> view, 38 int screenX, int screenY, int pageX, int pageY, 39 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey) 40 : MouseRelatedEvent(eventNames().mousewheelEvent, 41 true, true, view, 0, screenX, screenY, pageX, pageY, 42 ctrlKey, altKey, shiftKey, metaKey) 43 , m_wheelDeltaX(lroundf(wheelTicksX * 120)) 44 , m_wheelDeltaY(lroundf(wheelTicksY * 120)) // Normalize to the Windows 120 multiple 45 { 46 } 47 48 void WheelEvent::initWheelEvent(int wheelDeltaX, int wheelDeltaY, PassRefPtr<AbstractView> view, 49 int screenX, int screenY, int pageX, int pageY, 50 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey) 51 { 52 if (dispatched()) 53 return; 54 55 initUIEvent(eventNames().mousewheelEvent, true, true, view, 0); 56 57 m_screenX = screenX; 58 m_screenY = screenY; 59 m_ctrlKey = ctrlKey; 60 m_altKey = altKey; 61 m_shiftKey = shiftKey; 62 m_metaKey = metaKey; 63 m_wheelDeltaX = wheelDeltaX; 64 m_wheelDeltaY = wheelDeltaY; 65 66 initCoordinates(pageX, pageY); 67 } 68 69 70 bool WheelEvent::isWheelEvent() const 71 { 72 return true; 73 } 74 75 } // namespace WebCore 76
