/*

* 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:  Engine observer used by each session to complete events

*

*/

#ifndef M_MPXHARVESTERENGINEOBSERVER_H

#define M_MPXHARVESTERENGINEOBSERVER_H

#include "mpxhvsmsg.h"

class CMPXMedia;

/**

 *  Harvester Engine observer

 *

 *  Each session could have async requests, 

 *  this class allows the engine to callback to a particular session

 *

 *  @lib mpxharvesterserver.exe

 */

class MMPXHarvesterEngineObserver 

    {

public:

    /**

    * Handles the completion of an import event

    * @param aMedia media object to return to the client

    * @param aErr 

    * @param aMsg message to complete

    */

    virtual void HandleImportCompleteL( CMPXMedia* aMedia, 

                                        TInt aErr,

                                        RHvsMsg* aMsg ) = 0;

    /**

    * Handles the completion of an export event

    * @param aMedia media object to return to the client

    * @param aErr error code for the operation

    * @param aMsg message to complete

    */

    virtual void HandleExportCompleteL( CMPXMedia* aMedia, 

                                        TInt aErr,

                                        RHvsMsg* aMsg ) = 0;

    /**

    * Complete the async request, no need for packaging any returns

    * @param aMsg message to complete

    * @param aErr error code to complete the operation

    */

    virtual void CompleteTask( RHvsMsg* aMsg, TInt aErr ) = 0;

    };

#endif // M_MPXHARVESTERENGINEOBSERVER_H