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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef EventRetargeter_h
#define EventRetargeter_h
#include "wtf/HashMap.h"
#include "wtf/RefPtr.h"
#include "wtf/Vector.h"
namespace WebCore {
class EventPath;
class EventTarget;
class FocusEvent;
class MouseEvent;
class Node;
class TouchEvent;
class TouchList;
class TreeScope;
class EventRetargeter {
public:
static void adjustForMouseEvent(Node*, MouseEvent&);
static void adjustForFocusEvent(Node*, FocusEvent&);
typedef Vector<RefPtr<TouchList> > EventPathTouchLists;
static void adjustForTouchEvent(Node*, TouchEvent&);
private:
typedef Vector<RefPtr<EventTarget> > AdjustedTargets;
typedef HashMap<TreeScope*, EventTarget*> RelatedTargetMap;
enum EventWithRelatedTargetDispatchBehavior {
StopAtBoundaryIfNeeded,
DoesNotStopAtBoundary
};
static void adjustForRelatedTarget(const Node*, EventTarget* relatedTarget, EventPath&);
static void calculateAdjustedNodes(const Node*, const Node* relatedNode, EventWithRelatedTargetDispatchBehavior, EventPath&, AdjustedTargets&);
static void buildRelatedNodeMap(const Node*, RelatedTargetMap&);
static EventTarget* findRelatedNode(TreeScope*, RelatedTargetMap&);
static void adjustTouchList(const Node*, const TouchList*, const EventPath&, EventPathTouchLists&);
#ifndef NDEBUG
static void checkReachability(Node*, TouchList*);
#endif
};
}
#endif // EventRetargeter_h
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