1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:    Unit tests

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #ifndef __C_GLXLISTCONSTRUCTION_H__

    22 #define __C_GLXLISTCONSTRUCTION_H__

    23 

    24 //  EXTERNAL INCLUDES

    25 #include <e32std.h>

    26 

    27 //  INTERNAL INCLUDES

    28 #include "glxmediaid.h"

    29 #include "mglxnavigablelistobserver.h"

    30 #include "_glxnotification.h"

    31 

    32 //  FORWARD DECLARATIONS

    33 class CGlxItemList;

    34 class CGlxStaticItemList;

    35 class CGlxNavigableList;

    36 class TGlxMedia;

    37 class CMPXCollectionPath;

    38 

    39 /**

    40  * Reconstruction of a list

    41  *

    42  */

    43 class CGlxListReconstructionBase : public CBase, public MGlxNavigableListObserver

    44     {

    45     public:     

    46         ~CGlxListReconstructionBase();

    47         

    48         void ClearNotifications();

    49         

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

    51         

    52         // From MGlxNavigableListObserver

    53         void HandleItemsAdded( TInt aAddedAtIndex, TInt aCount );

    54         void HandleItemsRemoved( TInt aRemovedFromIndex, TInt aCount );

    55         void HandleFocusChanged( NGlxListDefs::TFocusChangeType aType, 

    56             TInt aNewIndex, TInt aOldIndex );

    57         void HandleItemSelected( TInt aIndex, TBool aSelected );

    58         

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

    60         virtual TBool ReconstructionEquals() const = 0;

    61     

    62     protected:

    63         void ConstructL( TInt aReservationCount = 400 );

    64     

    65     protected:

    66         // List of notifications received

    67         RArray< TNotification > iNotifications;

    68         // list that has been reconstructed from notifications

    69         RArray< TGlxMediaId > iReconstructedList;

    70         // focus index reconstructed from notifications

    71         TInt iFocusIndex;

    72         // selection reconstructed from notifications

    73         RArray< TInt> iSelectedItemIndices;

    74     };

    75 

    76 /**

    77  * Reconstruction of a item list

    78  */

    79 template < class _ListClass >

    80 class CGlxListReconstruction : public CGlxListReconstructionBase

    81     {

    82     public:     

    83         inline CGlxListReconstruction();

    84         inline void SetList( _ListClass& aList );

    85         

    86         inline TBool ItemsEqual() const;

    87         

    88         // From CGlxListReconstructionBase

    89         inline const TGlxMediaId& OriginalItem( TInt aIndex ) const;

    90         

    91     protected: 

    92         _ListClass* iList;

    93     };

    94 

    95 #include "glxlistreconstruction.inl"

    96 

    97 #endif      //  __C_GLXITEMLISTCONSTRUCTION_H__