/*

 * 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:

 * CSysApCenRepOfflineModeObserver is a an observer for the Offline Mode central Repository key.

 * This class handles the changes to the offline mode changes done from Power Menu or Control Panel 

 *

 */

#ifndef SYSAPCENREPOFFLINEMODEOBSERVER_H

#define SYSAPCENREPOFFLINEMODEOBSERVER_H

// INCLUDES

#include <e32base.h>

#include <centralrepository.h>

#include <cenrepnotifyhandler.h>

#include "MSysApOfflineModeController.h"

NONSHARABLE_CLASS(CSysApCenRepOfflineModeObserver) : public CBase, 

                                                     public MCenRepNotifyHandlerCallback

    {

public: // Constructors and destructor

    /**

    * Default constructor

    */

    static CSysApCenRepOfflineModeObserver* NewL( 

            MSysApOfflineModeController& aSysApOfflineModeController );

    /**

    * Destructor.

    */

    ~CSysApCenRepOfflineModeObserver();

private:    

    /**

    * Two phase ConstructL

    */

    void ConstructL( );

    /**

    * Constructor 

    * @param aSysApOfflineModeController is the instance of Offline mode controller

    */

    CSysApCenRepOfflineModeObserver( MSysApOfflineModeController& aSysApOfflineModeController );

    /**

    * default constructor.

    */

    CSysApCenRepOfflineModeObserver();

public: // From MCenRepNotifyHandlerCallback

    /**

    * Handles the changes to offline mode state

    * @param aId is the cen rep key which was changed

    * @param aNewValue is the new value		

    */

    void HandleNotifyInt( TUint32 aId, TInt aNewValue );

    /**

    * Handles the error in changing offline mode state

    * @param aId is the cen rep key which was changed

    * @param aError is the error id		

    * @param aHandler is Offline cep rep handler same as iOfflineModeHandler		

    */

    void HandleNotifyError( TUint32 aId, TInt aError, CCenRepNotifyHandler* aHandler );

    /**

    * Returns whether Offline mode is currently active or not

    * @return ETrue if Offline mode is active, else EFalse

    */		

    TBool IsOffline() const;

private:

    /**

    * Instance of Offline mode controller. Used for enabling or disabling offline mode

    */	

    MSysApOfflineModeController& iSysApOfflineModeController;

    /**

    * Central Repository for gettting the Offline Mode

    */	

    CRepository*          iOfflineCenRep;

    /**

    * Handler to the cen rep for listening to the offline changes

    */

    CCenRepNotifyHandler* iOfflineModeHandler;

    };

#endif      // SYSAPCENREPBTOBSERVER_H