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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef EventPath_h
#define EventPath_h
#include "core/events/EventContext.h"
#include "wtf/OwnPtr.h"
#include "wtf/Vector.h"
namespace WebCore {
class Event;
class EventTarget;
class Node;
enum EventDispatchBehavior {
RetargetEvent,
StayInsideShadowDOM
};
class EventPath {
public:
explicit EventPath(Event*);
explicit EventPath(Node*);
void resetWith(Node*);
EventContext& operator[](size_t index) { return m_eventContexts[index]; }
const EventContext& operator[](size_t index) const { return m_eventContexts[index]; }
const EventContext& last() const { return m_eventContexts[size() - 1]; }
bool isEmpty() const { return m_eventContexts.isEmpty(); }
size_t size() const { return m_eventContexts.size(); }
void shrink(size_t newSize) { m_eventContexts.shrink(newSize); }
static Node* parent(Node*);
static EventTarget* eventTargetRespectingTargetRules(Node*);
private:
EventPath();
EventContext& at(size_t index) { return m_eventContexts[index]; }
void addEventContext(Node*);
void calculatePath();
void calculateAdjustedTargets();
void calculateAdjustedEventPathForEachNode();
Vector<EventContext, 64> m_eventContexts;
Node* m_node;
Event* m_event;
};
} // namespace
#endif
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