/*

* 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:  Collection engine observer

*

*/

#ifndef MMPXCOLLECTIONENGINEOBSERVER_H

#define MMPXCOLLECTIONENGINEOBSERVER_H

#include <badesca.h>

#include <mpxcollectionenginecommonobserver.h>

/**

*  Interface for receiving data asynchronously 

*/

NONSHARABLE_CLASS(MMPXCollectionEngineObserver) : public MMPXCollectionEngineCommonObserver

    {

public:

    /**

    *  Handles the collection entries being opened. Typically called

    *  when client has Open()'d a folder

    *  Or Handles the item being opened. Typically called

    *  when client has Open()'d an item. Client typically responds by

    *  'playing' the item via the playlist

    *

    *  @param aMedia media to hold collection entries

    *  @param aIndex focused entry

    *  @param aComplete ETrue no more entries. EFalse more entries expected

    *  @param aError error code   

    */

    virtual void HandleOpen(CMPXMedia* aMedia,

                            TInt aIndex,TBool aComplete,TInt aError) = 0;

    /**

    * Handles a generic Async Op completion ( nothing to return )

    * @param aError, error to complete

    */

    virtual void HandleOpComplete( TInt aError ) = 0;

    };    

#endif // MMPXCOLLECTIONENGINEOBSERVER_H