/*
 * 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
 * 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 EventDispatchMediator_h
#define EventDispatchMediator_h

#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>

namespace WebCore {

class Event;
class EventDispatcher;
class Node;

class EventDispatchMediator : public RefCounted<EventDispatchMediator> {
public:
    static PassRefPtr<EventDispatchMediator> create(PassRefPtr<Event>);
    virtual ~EventDispatchMediator() { };
    virtual bool dispatchEvent(EventDispatcher*) const;
    Event* event() const { return m_event.get(); };

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

private:
    RefPtr<Event> m_event;
};

class FocusEventDispatchMediator : public EventDispatchMediator {
public:
    static PassRefPtr<FocusEventDispatchMediator> create(PassRefPtr<Node> oldFocusedNode);
private:
    explicit FocusEventDispatchMediator(PassRefPtr<Node> oldFocusedNode);
    virtual bool dispatchEvent(EventDispatcher*) const;
    RefPtr<Node> m_oldFocusedNode;
};

class BlurEventDispatchMediator : public EventDispatchMediator {
public:
    static PassRefPtr<BlurEventDispatchMediator> create(PassRefPtr<Node> newFocusedNode);
private:
    explicit BlurEventDispatchMediator(PassRefPtr<Node> newFocusedNode);
    virtual bool dispatchEvent(EventDispatcher*) const;
    RefPtr<Node> m_newFocusedNode;
};

} // namespace WebCore

#endif // EventDispatchMediator_h
