1 /*

     2 * Copyright (c) 2006 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:  Base class for concrete thumbnailloaders.

    15 *

    16 */

    17 

    18 

    19 #ifndef CPHCNTTHUMBNAILLOADERBASE_H

    20 #define CPHCNTTHUMBNAILLOADERBASE_H

    21 

    22 

    23 #include <e32base.h>

    24 #include "mphcntthumbnailloader.h"

    25 

    26 /**

    27  *  Base class for thumbnail loaders.

    28  *

    29  *  Holds the loading observer and offers interface 

    30  *  for notifying the observer.

    31  *

    32  *  @lib PhoneCntFinder

    33  *  @since S60 v3.1

    34  */

    35 NONSHARABLE_CLASS( CPhCntThumbnailLoaderBase ) : 

    36     public CBase,

    37     public MPhCntThumbnailLoader

    38     {

    39 public:

    40 

    41 // from base class MPhCntThumbnailLoader

    42 

    43      /**

    44       * From MPhCntThumbnailLoader.

    45       *

    46       * @since S60 v3.1

    47       * @see MPhCntThumbnailLoader

    48       */

    49     void LoadL( 

    50         const CPhCntContactId& aContactId,

    51         MPhCntLoaderObserver& aLoadingObserver );

    52 

    53 protected:

    54 

    55     virtual ~CPhCntThumbnailLoaderBase();

    56 

    57     CPhCntThumbnailLoaderBase();

    58     

    59     /**

    60      * Notifies the observer.

    61      */

    62     void NotifyObserver( CFbsBitmap* aBitmap, TInt aError );

    63     

    64 private:

    65 

    66     /**

    67      * Template method, for doing the actual loading in base class.

    68      */

    69     virtual void DoLoadL( const CPhCntContactId& aContactId ) = 0;

    70     

    71 private: // Data

    72 

    73     /** 

    74      * Observer of loading thumbnail.

    75      * Not own.

    76      */

    77     MPhCntLoaderObserver* iLoadingObserver;

    78 

    79     };

    80 

    81 #endif // CPHCNTTHUMBNAILLOADERBASE_H