xref: /external/chromium_org/third_party/WebKit/Source/core/events/EventDispatchMediator.h

/*
 * Copyright (C) 2011 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.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * 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
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 */

#ifndef EventDispatchMediator_h
#define EventDispatchMediator_h

#include "platform/heap/Handle.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/RefPtr.h"

namespace blink {

class Event;
class EventDispatcher;
class Node;

class EventDispatchMediator : public RefCountedWillBeGarbageCollectedFinalized<EventDispatchMediator> {
public:
    static PassRefPtrWillBeRawPtr<EventDispatchMediator> create(PassRefPtrWillBeRawPtr<Event>);
    virtual ~EventDispatchMediator() { };
    virtual void trace(Visitor*);
    virtual bool dispatchEvent(EventDispatcher*) const;
    Event* event() const { return m_event.get(); };

protected:
    explicit EventDispatchMediator(PassRefPtrWillBeRawPtr<Event>);
    EventDispatchMediator() { };
    void setEvent(PassRefPtrWillBeRawPtr<Event> event) { m_event = event; };

private:
    RefPtrWillBeMember<Event> m_event;
};

} // namespace blink

#endif // EventDispatchMediator_h