/*

* 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 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: Active callback for Backup/Restore observer.

*

*/

#ifndef HSBACKUPRESTOREACTIVECALLBACK_H

#define HSBACKUPRESTOREACTIVECALLBACK_H

#include <e32base.h>

#include <connect/abclient.h>

class HsBackupRestoreObserver;

NONSHARABLE_CLASS(CHsBURActiveCallback) : public CBase, 

	                                     public conn::MActiveBackupDataClient

    {

public:

    IMPORT_C static CHsBURActiveCallback* NewL(HsBackupRestoreObserver* observer);

    virtual ~CHsBURActiveCallback();    

    // new functions from base class MActiveBackupDataClient

    virtual void AllSnapshotsSuppliedL();

    virtual void ReceiveSnapshotDataL(

        TDriveNumber aDrive, TDesC8& aBuffer, TBool aLastSection);

    virtual TUint GetExpectedDataSize(TDriveNumber aDrive);

    virtual void GetSnapshotDataL( 

        TDriveNumber aDrive, TPtr8& aBuffer, TBool& aFinished);

    virtual void InitialiseGetBackupDataL(TDriveNumber aDrive);

    virtual void GetBackupDataSectionL(TPtr8& aBuffer, TBool& aFinished);

    virtual void InitialiseRestoreBaseDataL(TDriveNumber aDrive);

    virtual void RestoreBaseDataSectionL(TDesC8& aBuffer, TBool aFinished);

    virtual void InitialiseRestoreIncrementDataL(TDriveNumber aDrive);

    virtual void RestoreIncrementDataSectionL(TDesC8& aBuffer, TBool aFinished);

    virtual void RestoreComplete(TDriveNumber aDrive);   

    virtual void TerminateMultiStageOperation();

    virtual TUint GetDataChecksum(TDriveNumber aDrive);

private:

    CHsBURActiveCallback(HsBackupRestoreObserver* observer);

    void ConstructL();

private:

	// Bacup/Restore observer. Not own.

    HsBackupRestoreObserver *iObserver;

    };

#endif // HSBACKUPRESTOREACTIVECALLBACK_H