1/* 2 * Copyright (C) 2010 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 * 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 COMPUTER, INC. ``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 27#include "config.h" 28#include "EventContext.h" 29 30#include "DOMWindow.h" 31#include "Document.h" 32#include "Event.h" 33#include "FocusEvent.h" 34#include "MouseEvent.h" 35#include "Node.h" 36#include "TouchEvent.h" 37#include "TouchList.h" 38 39namespace WebCore { 40 41EventContext::EventContext(PassRefPtr<Node> node, PassRefPtr<EventTarget> currentTarget, PassRefPtr<EventTarget> target) 42 : m_node(node) 43 , m_currentTarget(currentTarget) 44 , m_target(target) 45{ 46 ASSERT(m_node); 47 ASSERT(!isUnreachableNode(m_target.get())); 48} 49 50EventContext::~EventContext() 51{ 52} 53 54void EventContext::handleLocalEvents(Event* event) const 55{ 56 event->setTarget(m_target.get()); 57 event->setCurrentTarget(m_currentTarget.get()); 58 m_node->handleLocalEvents(event); 59} 60 61bool EventContext::isMouseOrFocusEventContext() const 62{ 63 return false; 64} 65 66bool EventContext::isTouchEventContext() const 67{ 68 return false; 69} 70 71MouseOrFocusEventContext::MouseOrFocusEventContext(PassRefPtr<Node> node, PassRefPtr<EventTarget> currentTarget, PassRefPtr<EventTarget> target) 72 : EventContext(node, currentTarget, target) 73 , m_relatedTarget(0) 74{ 75} 76 77MouseOrFocusEventContext::~MouseOrFocusEventContext() 78{ 79} 80 81void MouseOrFocusEventContext::handleLocalEvents(Event* event) const 82{ 83 ASSERT(event->isMouseEvent() || event->isFocusEvent()); 84 if (m_relatedTarget.get() && event->isMouseEvent()) 85 toMouseEvent(event)->setRelatedTarget(m_relatedTarget.get()); 86 else if (m_relatedTarget.get() && event->isFocusEvent()) 87 toFocusEvent(event)->setRelatedTarget(m_relatedTarget.get()); 88 EventContext::handleLocalEvents(event); 89} 90 91bool MouseOrFocusEventContext::isMouseOrFocusEventContext() const 92{ 93 return true; 94} 95 96#if ENABLE(TOUCH_EVENTS) 97TouchEventContext::TouchEventContext(PassRefPtr<Node> node, PassRefPtr<EventTarget> currentTarget, PassRefPtr<EventTarget> target) 98 : EventContext(node, currentTarget, target) 99 , m_touches(TouchList::create()) 100 , m_targetTouches(TouchList::create()) 101 , m_changedTouches(TouchList::create()) 102{ 103} 104 105TouchEventContext::~TouchEventContext() 106{ 107} 108 109void TouchEventContext::handleLocalEvents(Event* event) const 110{ 111#ifndef NDEBUG 112 checkReachability(m_touches.get()); 113 checkReachability(m_targetTouches.get()); 114 checkReachability(m_changedTouches.get()); 115#endif 116 ASSERT(event->isTouchEvent()); 117 TouchEvent* touchEvent = toTouchEvent(event); 118 touchEvent->setTouches(m_touches); 119 touchEvent->setTargetTouches(m_targetTouches); 120 touchEvent->setChangedTouches(m_changedTouches); 121 EventContext::handleLocalEvents(event); 122} 123 124bool TouchEventContext::isTouchEventContext() const 125{ 126 return true; 127} 128 129#ifndef NDEBUG 130void TouchEventContext::checkReachability(TouchList* touchList) const 131{ 132 for (size_t i = 0; i < touchList->length(); ++i) 133 ASSERT(isReachable(touchList->item(i)->target()->toNode())); 134} 135#endif 136 137#endif // ENABLE(TOUCH_EVENTS) 138 139} 140