/*

 * Copyright (C) 2009 Apple 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:

 *

 * 1.  Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 * 2.  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.

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 RunLoopTimer_h

#define RunLoopTimer_h

#include "SchedulePair.h"

#include <wtf/Noncopyable.h>

#include <wtf/RetainPtr.h>

namespace WebCore {

// Time intervals are all in seconds.

class RunLoopTimerBase : public Noncopyable {

public:

    virtual ~RunLoopTimerBase();

    void schedule(const SchedulePair*);

    void schedule(const SchedulePairHashSet&);

    void start(double nextFireInterval, double repeatInterval);

    void startRepeating(double repeatInterval) { start(repeatInterval, repeatInterval); }

    void startOneShot(double interval) { start(interval, 0); }

    void stop();

    bool isActive() const;

    virtual void fired() = 0;

private:

#if PLATFORM(CF)

    RetainPtr<CFRunLoopTimerRef> m_timer;

#endif

};

template <typename TimerFiredClass> class RunLoopTimer : public RunLoopTimerBase {

public:

    typedef void (TimerFiredClass::*TimerFiredFunction)(RunLoopTimer*);

    RunLoopTimer(TimerFiredClass* o, TimerFiredFunction f)

        : m_object(o), m_function(f) { }

    virtual void fired() { (m_object->*m_function)(this); }

private:

    TimerFiredClass* m_object;

    TimerFiredFunction m_function;

};

} // namespace WebCore

#endif