/*
* Copyright (c) 2010 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: 
*
*/

#include <e32base.h>
#include <hwrmlight.h>

#ifndef CACTIVITYMANAGER_H_
#define CACTIVITYMANAGER_H_

class MActivityManagerObserver
{
public :
    virtual void ActivityChangedL(const TBool aActive) = 0;
};

//#define MONITOR_LIGHTS
class CActivityManager : public CActive
#ifdef MONITOR_LIGHTS   
                           ,public MHWRMLightObserver
#endif

{
public:

    /**
     * Two-phased constructor.
     *     
     */
    static CActivityManager* NewL(MActivityManagerObserver* aObserver, TInt aTimeout = 60);

    /**
     * Destructor
     *     
     */
    virtual ~CActivityManager();
    void SetTimeout(TInt aTimeout);
    void Start();
    void Reset();
    void Stop();
    TBool IsInactive();


protected: // from CActive
    void DoCancel();
    void RunL();
    TInt RunError(TInt aError);

protected:
    CActivityManager(MActivityManagerObserver* aObserver, TInt aTimeout);
    void ConstructL();
    void NotifyObserver();
    
#ifdef MONITOR_LIGHTS
private: //From MHWRMLightObserver
    void LightStatusChanged(TInt aTarget, CHWRMLight::TLightStatus aStatus);
#endif
    
protected:
    enum TWatch { ENone = 0, EWaitingForInactivity, EWaitingForActivity };

protected:
    RTimer iTimer;
    TWatch iWatch;
    MActivityManagerObserver* iObserver; ///The observer of activity status
    TInt iTimeout; ///Current inactivity period
    
#ifdef MONITOR_LIGHTS
    //Backlight control 
    CHWRMLight* iLight;
    //backlight status
    TBool iLights;
#endif
    //previous status
    TInt iPreviousStatus;
    TBool iFirstRound;
};
#endif /* CACTIVITYMANAGER_H_ */