/*

* Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  describes system information notifiers.

*

*/

#ifndef __SYSUSERACTIVITY_H__

#define __SYSUSERACTIVITY_H__

//INCLUDES

#include "sysinfo.h"

#include "activerequests.h"

// FORWARD DECLARATIONS

class CUserActivityManager;

/**

*  @ref CUserActivity active object class to handle user activity and user 

*   inactivity notifications.

*

*  @lib sysinfoservice.lib

*  @since S60 3.2

*/

NONSHARABLE_CLASS(CUserActivity): public CActiveRequest

    {

    public:

    /**

    * Two-phased constructor.

    *

    * @return A new instance of this class.

    */    

    static CUserActivity* NewL(const TSysRequest& aRequest);

    /**

    * Destructor.

    */

    ~CUserActivity();

    private:

    // Enumeration of user events.

    enum TEvent

        {

        EUSERACTIVITY,

        EUSERINACTIVITY

        };

    /**

    * C++ default constructor.

    */

    CUserActivity( TSysRequest::TRequestType aReqType,TInt32 aTransID,

                                                ISystemObserver* aObsrvr );

    /**

    * By default Symbian 2nd phase constructor is private.

    */

    void ConstructL(const TSysRequest& aRequest);

    public:	

    /**

    * Issues user activity and inactivity request.

    */

    TInt Request();

    protected: // from CActive

    void RunL();

    void DoCancel();

    protected:

    /**

    * call back handle to handle inactivity event.

    */

    static	TInt HandleInactiveEventL(TAny* aPtr);

    /**

    * call back handle to handle activity event.

    */

    static	TInt HandleActiveEventL(TAny* aPtr);

    /**

    * call back handle to handle activity event.

    */	

    void HandleReqResponseL(TEvent aEvent);

    private:	// DATA

    //Activity manager handle.

    CUserActivityManager*       iActivityManager;

    // TimeOut value for user inactivity notification.

    TInt                        iTimeout;

    };

#endif __SYSUSERACTIVITY_H__