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/*
* Copyright (C) 2007, 2008, 2009, 2010 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. 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 QTMovieTask_h
#define QTMovieTask_h
#include <WTF/HashSet.h>
#ifdef QTMOVIEWIN_EXPORTS
#define QTMOVIEWIN_API __declspec(dllexport)
#else
#define QTMOVIEWIN_API __declspec(dllimport)
#endif
class QTMovieTaskClient {
public:
virtual void task() = 0;
};
typedef void (*SetTaskTimerDelayFunc)(double);
typedef void (*StopTaskTimerFunc)();
class QTMOVIEWIN_API QTMovieTask {
public:
static QTMovieTask* sharedTask();
void addTaskClient(QTMovieTaskClient* client);
void removeTaskClient(QTMovieTaskClient*);
void fireTaskClients();
void updateTaskTimer(double maxInterval = 1.0, double minInterval = 1.0 / 30);
void setTaskTimerFuncs(SetTaskTimerDelayFunc setTaskTimerDelay, StopTaskTimerFunc stopTaskTimer);
protected:
QTMovieTask();
~QTMovieTask();
SetTaskTimerDelayFunc m_setTaskTimerDelay;
StopTaskTimerFunc m_stopTaskTimer;
HashSet<QTMovieTaskClient*> m_taskList;
private:
QTMovieTask(const QTMovieTask&);
QTMovieTask& operator=(const QTMovieTask&);
};
#endif
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