/*

* Copyright (c) 2007 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:  Interface for model classes to be used by

*                CAknMemorySelectionEventHandler.

*

*/

#ifndef M_AKNMEMORYSELECTIONMODEL_H

#define M_AKNMEMORYSELECTIONMODEL_H

#include <bamdesca.h> // MDesCArray

/**

*  interface class for memory selection models

*

*  @lib CommonDialogs.lib

*  @since S60 5.0

*/

class MAknMemorySelectionModel: public MDesCArray

    {

public:

// Enumerations

    /**

    * Layout for listbox. For decorating items.

    */

    enum TListBoxLayout

        {

        ELayoutPopupMenu = 0,

        ELayoutSettingPage = 10,

        ELayoutDoublePopup = 20

        };

// Constructors and destructor

    /**

     * A virtual destructor to ensure that correct destructor gets called.

     * Must have an empty implementation.

     */

    virtual ~MAknMemorySelectionModel() { };

// New functions

    /**

     * Update Data arrays

     */

    virtual void UpdateDataArraysL() { }

    /**

     * Update model's items

     */

    virtual void UpdateItemsL() = 0;

    /**

     * Get path of a drive referenced by given listbox item index.

     * @param aLbxItemIndex Index of the listbox item.

     * @param aDrivePath A reference to a descriptor where the drive path is

     *        stored.

     */

    virtual void GetDrive( TInt aLbxItemIndex, TDes& aDrivePath ) = 0;

    };

#endif // M_AKNMEMORYSELECTIONMODEL_H