1 /* 2 * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #include "config.h" 27 28 #include "PlatformWheelEvent.h" 29 30 namespace WebCore { 31 32 PlatformWheelEvent::PlatformWheelEvent( 33 const IntPoint& pos, 34 const IntPoint& globalPos, 35 float deltaX, 36 float deltaY, 37 bool shiftKey, 38 bool ctrlKey, 39 bool altKey, 40 bool metaKey) 41 : PlatformEvent( 42 PlatformEvent::Wheel, 43 shiftKey, 44 ctrlKey, 45 altKey, 46 metaKey, 47 WallTime {}) 48 , m_position(pos) 49 , m_globalPosition(globalPos) 50 // For some unknown reason, EventHandler expects deltaX/deltaY < 0 for 51 // ScrollRight/ScrollDown, and deltaX/deltaY > 0 for ScrollLeft/ScrollUp. 52 // Java mouse wheel events behave in reverse way, so need a negation here. 53 , m_deltaX(-deltaX) 54 , m_deltaY(-deltaY) 55 , m_wheelTicksX(-deltaX) 56 , m_wheelTicksY(-deltaY) 57 , m_granularity(ScrollByPixelWheelEvent) 58 , m_directionInvertedFromDevice(false) 59 { 60 } 61 62 } // namespace WebCore