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| 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 #ifndef EventContext_h | |
| 28 #define EventContext_h | |
| 29 | |
| 30 #include "core/events/EventTarget.h" | |
| 31 #include "core/dom/Node.h" | |
| 32 #include "core/dom/StaticNodeList.h" | |
| 33 #include "core/dom/TreeScope.h" | |
| 34 #include "wtf/RefPtr.h" | |
| 35 | |
| 36 namespace WebCore { | |
| 37 | |
| 38 class Event; | |
| 39 class TouchList; | |
| 40 | |
| 41 class EventContext { | |
| 42 public: | |
| 43 // FIXME: Use ContainerNode instead of Node. | |
| 44 EventContext(PassRefPtr<Node>, PassRefPtr<EventTarget> currentTarget, PassRe
fPtr<EventTarget> target); | |
| 45 virtual ~EventContext(); | |
| 46 | |
| 47 Node* node() const { return m_node.get(); } | |
| 48 EventTarget* target() const { return m_target.get(); } | |
| 49 PassRefPtr<NodeList> eventPath() { return m_eventPath; } | |
| 50 void adoptEventPath(Vector<RefPtr<Node> >&); | |
| 51 void setEventPath(PassRefPtr<NodeList> nodeList) { m_eventPath = nodeList; } | |
| 52 | |
| 53 bool currentTargetSameAsTarget() const { return m_currentTarget.get() == m_t
arget.get(); } | |
| 54 virtual void handleLocalEvents(Event*) const; | |
| 55 virtual bool isMouseOrFocusEventContext() const; | |
| 56 virtual bool isTouchEventContext() const; | |
| 57 | |
| 58 protected: | |
| 59 #ifndef NDEBUG | |
| 60 bool isUnreachableNode(EventTarget*); | |
| 61 #endif | |
| 62 RefPtr<Node> m_node; | |
| 63 RefPtr<EventTarget> m_currentTarget; | |
| 64 RefPtr<EventTarget> m_target; | |
| 65 RefPtr<NodeList> m_eventPath; | |
| 66 }; | |
| 67 | |
| 68 typedef Vector<OwnPtr<EventContext>, 32> EventPath; | |
| 69 | |
| 70 class MouseOrFocusEventContext : public EventContext { | |
| 71 public: | |
| 72 MouseOrFocusEventContext(PassRefPtr<Node>, PassRefPtr<EventTarget> currentTa
rget, PassRefPtr<EventTarget> target); | |
| 73 virtual ~MouseOrFocusEventContext(); | |
| 74 EventTarget* relatedTarget() const { return m_relatedTarget.get(); } | |
| 75 void setRelatedTarget(PassRefPtr<EventTarget>); | |
| 76 virtual void handleLocalEvents(Event*) const OVERRIDE; | |
| 77 virtual bool isMouseOrFocusEventContext() const OVERRIDE; | |
| 78 | |
| 79 private: | |
| 80 RefPtr<EventTarget> m_relatedTarget; | |
| 81 }; | |
| 82 | |
| 83 | |
| 84 class TouchEventContext : public EventContext { | |
| 85 public: | |
| 86 TouchEventContext(PassRefPtr<Node>, PassRefPtr<EventTarget> currentTarget, P
assRefPtr<EventTarget> target); | |
| 87 virtual ~TouchEventContext(); | |
| 88 | |
| 89 virtual void handleLocalEvents(Event*) const OVERRIDE; | |
| 90 virtual bool isTouchEventContext() const OVERRIDE; | |
| 91 | |
| 92 TouchList* touches() { return m_touches.get(); } | |
| 93 TouchList* targetTouches() { return m_targetTouches.get(); } | |
| 94 TouchList* changedTouches() { return m_changedTouches.get(); } | |
| 95 | |
| 96 private: | |
| 97 RefPtr<TouchList> m_touches; | |
| 98 RefPtr<TouchList> m_targetTouches; | |
| 99 RefPtr<TouchList> m_changedTouches; | |
| 100 #ifndef NDEBUG | |
| 101 void checkReachability(TouchList*) const; | |
| 102 #endif | |
| 103 }; | |
| 104 | |
| 105 inline TouchEventContext* toTouchEventContext(EventContext* eventContext) | |
| 106 { | |
| 107 ASSERT_WITH_SECURITY_IMPLICATION(!eventContext || eventContext->isTouchEvent
Context()); | |
| 108 return static_cast<TouchEventContext*>(eventContext); | |
| 109 } | |
| 110 | |
| 111 #ifndef NDEBUG | |
| 112 inline bool EventContext::isUnreachableNode(EventTarget* target) | |
| 113 { | |
| 114 // FIXME: Checks also for SVG elements. | |
| 115 return target && target->toNode() && !target->toNode()->isSVGElement() && !t
arget->toNode()->treeScope().isInclusiveAncestorOf(m_node->treeScope()); | |
| 116 } | |
| 117 #endif | |
| 118 | |
| 119 inline void MouseOrFocusEventContext::setRelatedTarget(PassRefPtr<EventTarget> r
elatedTarget) | |
| 120 { | |
| 121 ASSERT(!isUnreachableNode(relatedTarget.get())); | |
| 122 m_relatedTarget = relatedTarget; | |
| 123 } | |
| 124 | |
| 125 } | |
| 126 | |
| 127 #endif // EventContext_h | |
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Chromium Code Reviews
Issue 26558004:
Revert 158219 "Move dom/*Event* to events to match the DOM vs. E..." (Closed)
Base URL: svn://svn.chromium.org/blink/branches/chromium/1651/