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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google Inc. All Rights Reserved. | 2 * Copyright (C) 2010 Google Inc. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| (...skipping 17 matching lines...) Expand all Loading... |
| 28 #define EventContext_h | 28 #define EventContext_h |
| 29 | 29 |
| 30 #include "EventTarget.h" | 30 #include "EventTarget.h" |
| 31 #include "Node.h" | 31 #include "Node.h" |
| 32 #include "TreeScope.h" | 32 #include "TreeScope.h" |
| 33 #include <wtf/RefPtr.h> | 33 #include <wtf/RefPtr.h> |
| 34 | 34 |
| 35 namespace WebCore { | 35 namespace WebCore { |
| 36 | 36 |
| 37 class Event; | 37 class Event; |
| 38 #if ENABLE(TOUCH_EVENTS) | |
| 39 class TouchList; | 38 class TouchList; |
| 40 #endif | |
| 41 | 39 |
| 42 class EventContext { | 40 class EventContext { |
| 43 public: | 41 public: |
| 44 // FIXME: Use ContainerNode instead of Node. | 42 // FIXME: Use ContainerNode instead of Node. |
| 45 EventContext(PassRefPtr<Node>, PassRefPtr<EventTarget> currentTarget, PassRe
fPtr<EventTarget> target); | 43 EventContext(PassRefPtr<Node>, PassRefPtr<EventTarget> currentTarget, PassRe
fPtr<EventTarget> target); |
| 46 virtual ~EventContext(); | 44 virtual ~EventContext(); |
| 47 | 45 |
| 48 Node* node() const { return m_node.get(); } | 46 Node* node() const { return m_node.get(); } |
| 49 EventTarget* target() const { return m_target.get(); } | 47 EventTarget* target() const { return m_target.get(); } |
| 50 bool currentTargetSameAsTarget() const { return m_currentTarget.get() == m_t
arget.get(); } | 48 bool currentTargetSameAsTarget() const { return m_currentTarget.get() == m_t
arget.get(); } |
| (...skipping 20 matching lines...) Expand all Loading... |
| 71 EventTarget* relatedTarget() const { return m_relatedTarget.get(); } | 69 EventTarget* relatedTarget() const { return m_relatedTarget.get(); } |
| 72 void setRelatedTarget(PassRefPtr<EventTarget>); | 70 void setRelatedTarget(PassRefPtr<EventTarget>); |
| 73 virtual void handleLocalEvents(Event*) const OVERRIDE; | 71 virtual void handleLocalEvents(Event*) const OVERRIDE; |
| 74 virtual bool isMouseOrFocusEventContext() const OVERRIDE; | 72 virtual bool isMouseOrFocusEventContext() const OVERRIDE; |
| 75 | 73 |
| 76 private: | 74 private: |
| 77 RefPtr<EventTarget> m_relatedTarget; | 75 RefPtr<EventTarget> m_relatedTarget; |
| 78 }; | 76 }; |
| 79 | 77 |
| 80 | 78 |
| 81 #if ENABLE(TOUCH_EVENTS) | |
| 82 class TouchEventContext : public EventContext { | 79 class TouchEventContext : public EventContext { |
| 83 public: | 80 public: |
| 84 TouchEventContext(PassRefPtr<Node>, PassRefPtr<EventTarget> currentTarget, P
assRefPtr<EventTarget> target); | 81 TouchEventContext(PassRefPtr<Node>, PassRefPtr<EventTarget> currentTarget, P
assRefPtr<EventTarget> target); |
| 85 virtual ~TouchEventContext(); | 82 virtual ~TouchEventContext(); |
| 86 | 83 |
| 87 virtual void handleLocalEvents(Event*) const OVERRIDE; | 84 virtual void handleLocalEvents(Event*) const OVERRIDE; |
| 88 virtual bool isTouchEventContext() const OVERRIDE; | 85 virtual bool isTouchEventContext() const OVERRIDE; |
| 89 | 86 |
| 90 TouchList* touches() { return m_touches.get(); } | 87 TouchList* touches() { return m_touches.get(); } |
| 91 TouchList* targetTouches() { return m_targetTouches.get(); } | 88 TouchList* targetTouches() { return m_targetTouches.get(); } |
| 92 TouchList* changedTouches() { return m_changedTouches.get(); } | 89 TouchList* changedTouches() { return m_changedTouches.get(); } |
| 93 | 90 |
| 94 private: | 91 private: |
| 95 RefPtr<TouchList> m_touches; | 92 RefPtr<TouchList> m_touches; |
| 96 RefPtr<TouchList> m_targetTouches; | 93 RefPtr<TouchList> m_targetTouches; |
| 97 RefPtr<TouchList> m_changedTouches; | 94 RefPtr<TouchList> m_changedTouches; |
| 98 #ifndef NDEBUG | 95 #ifndef NDEBUG |
| 99 void checkReachability(TouchList*) const; | 96 void checkReachability(TouchList*) const; |
| 100 #endif | 97 #endif |
| 101 }; | 98 }; |
| 102 | 99 |
| 103 inline TouchEventContext* toTouchEventContext(EventContext* eventContext) | 100 inline TouchEventContext* toTouchEventContext(EventContext* eventContext) |
| 104 { | 101 { |
| 105 ASSERT_WITH_SECURITY_IMPLICATION(!eventContext || eventContext->isTouchEvent
Context()); | 102 ASSERT_WITH_SECURITY_IMPLICATION(!eventContext || eventContext->isTouchEvent
Context()); |
| 106 return static_cast<TouchEventContext*>(eventContext); | 103 return static_cast<TouchEventContext*>(eventContext); |
| 107 } | 104 } |
| 108 #endif // ENABLE(TOUCH_EVENTS) | |
| 109 | 105 |
| 110 #ifndef NDEBUG | 106 #ifndef NDEBUG |
| 111 inline bool EventContext::isUnreachableNode(EventTarget* target) | 107 inline bool EventContext::isUnreachableNode(EventTarget* target) |
| 112 { | 108 { |
| 113 // FIXME: Checks also for SVG elements. | 109 // FIXME: Checks also for SVG elements. |
| 114 return target && target->toNode() && !target->toNode()->isSVGElement() && !i
sReachable(target->toNode()); | 110 return target && target->toNode() && !target->toNode()->isSVGElement() && !i
sReachable(target->toNode()); |
| 115 } | 111 } |
| 116 | 112 |
| 117 inline bool EventContext::isReachable(Node* target) const | 113 inline bool EventContext::isReachable(Node* target) const |
| 118 { | 114 { |
| 119 ASSERT(target); | 115 ASSERT(target); |
| 120 TreeScope* targetScope = target->treeScope(); | 116 TreeScope* targetScope = target->treeScope(); |
| 121 for (TreeScope* scope = m_node->treeScope(); scope; scope = scope->parentTre
eScope()) { | 117 for (TreeScope* scope = m_node->treeScope(); scope; scope = scope->parentTre
eScope()) { |
| 122 if (scope == targetScope) | 118 if (scope == targetScope) |
| 123 return true; | 119 return true; |
| 124 } | 120 } |
| 125 return false; | 121 return false; |
| 126 } | 122 } |
| 127 #endif | 123 #endif |
| 128 | 124 |
| 129 inline void MouseOrFocusEventContext::setRelatedTarget(PassRefPtr<EventTarget> r
elatedTarget) | 125 inline void MouseOrFocusEventContext::setRelatedTarget(PassRefPtr<EventTarget> r
elatedTarget) |
| 130 { | 126 { |
| 131 ASSERT(!isUnreachableNode(relatedTarget.get())); | 127 ASSERT(!isUnreachableNode(relatedTarget.get())); |
| 132 m_relatedTarget = relatedTarget; | 128 m_relatedTarget = relatedTarget; |
| 133 } | 129 } |
| 134 | 130 |
| 135 } | 131 } |
| 136 | 132 |
| 137 #endif // EventContext_h | 133 #endif // EventContext_h |
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