source: trunk/synergy/lib/platform/COSXScreenSaver.h

/*
 * synergy -- mouse and keyboard sharing utility
 * Copyright (C) 2002 Chris Schoeneman
 * 
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file COPYING that should have accompanied this file.
 * 
 * This package 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 General Public License for more details.
 */

#ifndef COSXSCREENSAVER_H
#define COSXSCREENSAVER_H

#include "IScreenSaver.h"
#include <Carbon/Carbon.h>

//! OSX screen saver implementation
class COSXScreenSaver : public IScreenSaver {
public:
        COSXScreenSaver(void* eventTarget);
        virtual ~COSXScreenSaver();

        // IScreenSaver overrides
        virtual void            enable();
        virtual void            disable();
        virtual void            activate();
        virtual void            deactivate();
        virtual bool            isActive() const;
        
private:
        void                            processLaunched(ProcessSerialNumber psn);
        void                            processTerminated(ProcessSerialNumber psn);
        
        static pascal OSStatus
                                                launchTerminationCallback(
                                                        EventHandlerCallRef nextHandler,
                                                        EventRef theEvent, void* userData);

private:
        // the target for the events we generate
        void*                           m_eventTarget;

        bool                            m_enabled;
        void*                           m_screenSaverController;
        void*                           m_autoReleasePool;
        EventHandlerRef         m_launchTerminationEventHandlerRef;
        ProcessSerialNumber     m_screenSaverPSN;
};

#endif