/*

* 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:    Unit tests

*

*/

#ifndef __C_GLXLISTCONSTRUCTION_H__

#define __C_GLXLISTCONSTRUCTION_H__

//  EXTERNAL INCLUDES

#include <e32std.h>

//  INTERNAL INCLUDES

#include "glxmediaid.h"

#include "mglxnavigablelistobserver.h"

#include "_glxnotification.h"

//  FORWARD DECLARATIONS

class CGlxItemList;

class CGlxStaticItemList;

class CGlxNavigableList;

class TGlxMedia;

class CMPXCollectionPath;

/**

 * Reconstruction of a list

 *

 */

class CGlxListReconstructionBase : public CBase, public MGlxNavigableListObserver

    {

    public:     

        ~CGlxListReconstructionBase();

        void ClearNotifications();

        TBool NotificationListEquals( const TNotification::TData* aNotificationList );

        // From MGlxNavigableListObserver

        void HandleItemsAdded( TInt aAddedAtIndex, TInt aCount );

        void HandleItemsRemoved( TInt aRemovedFromIndex, TInt aCount );

        void HandleFocusChanged( NGlxListDefs::TFocusChangeType aType, 

            TInt aNewIndex, TInt aOldIndex );

        void HandleItemSelected( TInt aIndex, TBool aSelected );

        virtual const TGlxMediaId& OriginalItem( TInt aIndex ) const = 0;

        virtual TBool ReconstructionEquals() const = 0;

    protected:

        void ConstructL( TInt aReservationCount = 400 );

    protected:

        // List of notifications received

        RArray< TNotification > iNotifications;

        // list that has been reconstructed from notifications

        RArray< TGlxMediaId > iReconstructedList;

        // focus index reconstructed from notifications

        TInt iFocusIndex;

        // selection reconstructed from notifications

        RArray< TInt> iSelectedItemIndices;

    };

/**

 * Reconstruction of a item list

 */

template < class _ListClass >

class CGlxListReconstruction : public CGlxListReconstructionBase

    {

    public:     

        inline CGlxListReconstruction();

        inline void SetList( _ListClass& aList );

        inline TBool ItemsEqual() const;

        // From CGlxListReconstructionBase

        inline const TGlxMediaId& OriginalItem( TInt aIndex ) const;

    protected: 

        _ListClass* iList;

    };

#include "glxlistreconstruction.inl"

#endif      //  __C_GLXITEMLISTCONSTRUCTION_H__