// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// CScreensaverActivityManager class

// 

//

#ifndef SCREENSAVERACTIVITYMANAGER_H

#define SCREENSAVERACTIVITYMANAGER_H

#include <e32base.h>

class CScreensaverActivityManager : public CTimer

	{

public:

 	static CScreensaverActivityManager* NewL(TInt aPriority);

	~CScreensaverActivityManager();

	void Start(TTimeIntervalSeconds aInterval,

	                    TCallBack aInactiveCallback,

	                    TCallBack aActiveCallback);

	void SetInactivityTimeout(TTimeIntervalSeconds aInterval);

	TBool IsMonitoringForActivity();

private:

	void RunL();

	CScreensaverActivityManager(TInt aPriority);

	void MonitorInactivity();

private:

    enum TState {

        EStUndefined = 0,    //< Never used, reserved

        EStNotActive,        //< Constructed but not started

        EStMonForInactivity, //< Monitoring user inactivity mode

        EStMonForActivity    //< Monitoring user activity mode

    };

    /** Inactivity interval */

    TTimeIntervalSeconds iInterval;

    /** Callback to be used in case that user inactivity is detected */

	TCallBack            iInactiveCallback;

    /** Callback to be used in case of user activity after inactivity period */

	TCallBack            iActiveCallback;

    /** State of object, what form of monitoring is active. */

	TState                iState;

	};

#endif // SCREENSAVERACTIVITYMANAGER_H