/*

* Copyright (c) 2006 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:  Monitors File system for Format events

*

*/

#ifndef CTMFORMATOBSERVER_H

#define CTMFORMATOBSERVER_H

#include <babackup.h>

#include "f32file.h"

/**

 * Observer interface

 */

class MTMFormatObserver

    {

public:

    virtual void FormatNotification( TBool aFormat ) = 0;

    };

/**

 *  File System monitor class to monitor for format events

 *

 *  @lib thumbnailsserver.exe

 *  @since S60 3.0

 */

class CTMFormatObserver: public CBase,

                         public MBackupOperationObserver

    {

public:

    /**

    * Two-phase constructor

    * @param aObserver observer to the monitor

    */

    static CTMFormatObserver* NewL( MTMFormatObserver& aObserver );

    /**

    * Two-phase constructor

    * @param aObserver observer to the monitor

    */

    static CTMFormatObserver* NewLC( MTMFormatObserver& aObserver );

    /**

    * Destructor

    */

    virtual ~CTMFormatObserver();

public: // New functions

    /**

    * Polls for the current monitor status

    * If an event is happening, it will callback the observer of the event

    */

    void PollStatus();

protected: // Base Class

    /*

    * From MBackupOperationObserver

    * Notifies this class of the backup event.

    * MMC App will signal a start / end.

    */

    void HandleBackupOperationEventL(const TBackupOperationAttributes& aBackupOperationAttributes);

private:

    /**

    *  C++ constructor

    *  aObserver observer to this event

    */

    CTMFormatObserver ( MTMFormatObserver& aObserver );

    /*

    * Second phased constructor

    */

    void ConstructL();

private: // data

    // not own

    MTMFormatObserver& iObserver; 

    CBaBackupSessionWrapper* iBackupSession;

    };

#endif // CTMFORMATOBSERVER_H