1 /*

     2 * Copyright (c) 2008-2009 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 : Grid view Observers

    15 *

    16 */

    17 

    18 

    19 #ifndef GLXGRIDVIEWMLOBSERVER_H_

    20 #define GLXGRIDVIEWMLOBSERVER_H_

    21 

    22 // Photos Headers

    23 #include <mglxmedialistobserver.h>

    24 

    25 // FORWARD DECLARATIONS

    26 class CGlxMediaList;

    27 class CHgGrid;

    28 class CGlxDRMUtility;

    29 //class CHgContextUtility;

    30 

    31 // CLASS DECLARATION

    32 class CGlxGridViewMLObserver: public CBase,

    33                               public MGlxMediaListObserver

    34 

    35     {

    36 public:

    37 

    38     /**

    39      * Two-phased constructor.

    40      *

    41      * @return Pointer to newly created object.

    42      */

    43     IMPORT_C static CGlxGridViewMLObserver* NewL(MGlxMediaList& aMediaList,

    44             CHgGrid* aHgGrid);

    45 

    46     /**

    47      * Destructor.

    48      */

    49     virtual ~CGlxGridViewMLObserver();

    50 

    51 public: // from MGlxMediaListObserver

    52     void HandleItemAddedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList );

    53     void HandleItemRemovedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList*/* aList */);

    54     void HandleAttributesAvailableL( TInt aItemIndex, 

    55         const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList );    

    56     void HandleFocusChangedL( NGlxListDefs::TFocusChangeType aType, 

    57     TInt aNewIndex, TInt aOldIndex, MGlxMediaList* aList );

    58     void HandleItemSelectedL(TInt aIndex, TBool aSelected, MGlxMediaList* aList );

    59     void HandleMessageL( const CMPXMessage& aMessage, MGlxMediaList* aList );

    60     void HandleError( TInt aError );

    61     void HandleCommandCompleteL( CMPXCommand* aCommandResult, TInt aError, 

    62         MGlxMediaList* aList );

    63     void HandleMediaL( TInt aListIndex, MGlxMediaList* aList );

    64     void HandleItemModifiedL( const RArray<TInt>& aItemIndexes, MGlxMediaList* aList );

    65     void HandlePopulatedL( MGlxMediaList* aList );

    66 

    67 private:

    68 

    69     /**

    70      * C++ default constructor.

    71      */

    72     CGlxGridViewMLObserver(MGlxMediaList& aMediaList,CHgGrid* aHgGrid);

    73 

    74     /**

    75      * By default Symbian 2nd phase constructor is private.

    76      */

    77     void ConstructL();

    78 

    79     /**

    80      * HandleErrorL is added to make the compiler happy by reducing codescanner warnings

    81      * No extra purpose

    82      */

    83     void HandleErrorL();

    84 

    85     /**

    86      * Checks the availability of relevant thumbnail(Quality or Speed) attribute

    87      * @param aIndex Media index to check the thumbnail attribute

    88      * @return ETrue if relevant thumbnail available 

    89      *         EFalse if relevant thumbnail not available 

    90      */    

    91     TBool HasRelevantThumbnail(TInt aIndex);

    92     

    93     /**

    94      * RefreshScreen - Refreshes the Hg Grid based on the attributes available index 

    95      * 

    96      */

    97     void RefreshScreen(TInt aItemIndex,const RArray<TMPXAttribute>& aAttributes);

    98     

    99     /**

   100      * UpdateItemsL - Update the items with the DRM/video icon and  date/time

   101      * 

   102      */

   103     void UpdateItemsL (TInt aItemIndex,const RArray<TMPXAttribute>& aAttributes);

   104     

   105 private:

   106 

   107     MGlxMediaList& iMediaList;

   108 	

   109     // Instance of HG Grid

   110     CHgGrid* iHgGrid;

   111 

   112     // Provides DRM related functionality

   113     CGlxDRMUtility* iDRMUtility;

   114 	

   115     TSize iGridIconSize;

   116     

   117     //No of visible items in a page/view

   118     TInt  iItemsPerPage;

   119 

   120     // Flag to indicate the downloads plugin

   121     TBool iDownloadsPlugin;

   122     

   123     // Modified Indexes array to refresh the screen

   124     RArray<TInt> iModifiedIndexes;

   125 

   126 //    CHgContextUtility* iContextUtility;

   127     

   128     //Grid Thumbnail Attribs

   129     TMPXAttribute iQualityTnAttrib;

   130     TMPXAttribute iSpeedTnAttrib;    

   131     };

   132 #endif //GLXGRIDVIEWMLOBSERVER_H_