/*

* Copyright (c) 2009 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: Media Fetch plug-in list handler

*

*/

// INCLUDES

#include <e32base.h>

#include <bamdesca.h>

/**

* MAudioFetcherListHandlerObserver

* 

* CAudioFetcherListHandler uses MAudioFetcherListHandlerObserver to get listbox item texts.

*/

class MAudioFetcherListHandlerObserver

    {

    public:

        virtual TPtrC ConstructListboxItem( TInt aListIndex ) = 0;

        virtual TInt ListboxItemCount() = 0;

    };

/**

* CMFListHandler

* 

* This class is used as listbox model's item array. Listbox uses it to draw 

* list items. CAudioFetcherListHandler gets list item texts from CAudioFetcherFileHandler

* (metadata query result). This way there is no need to copy all list items

* into listbox model.  

*/

class CAudioFetcherListHandler : public CBase, public MDesCArray

    {

    public:

        static CAudioFetcherListHandler* NewL();

        virtual ~CAudioFetcherListHandler();

    private:

        void ConstructL();

        CAudioFetcherListHandler();

    public:  // from MDesCArray

        TInt MdcaCount() const;

        TPtrC16 MdcaPoint(TInt aIndex) const;

    public:

        void SetObserver( MAudioFetcherListHandlerObserver* aObserver );

        static void Panic( TInt aReason );

    private:

        MAudioFetcherListHandlerObserver* iObserver;  // does not own

    };