1 /*

     2 * Copyright (c) 2002-2009 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: 

    15 *

    16 */

    17 

    18 

    19 #ifndef MCLFPROCESSOBSERVER_H

    20 #define MCLFPROCESSOBSERVER_H

    21 

    22 //  INCLUDES

    23 #include <e32std.h>

    24 

    25 // DATA TYPES

    26 /**

    27 * Content Listing Framework process events

    28 */

    29 enum TCLFProcessEvent

    30     {

    31     /// CLF server starts update process

    32     ECLFUpdateStart = 0x0,

    33     /// CLF server update process is end

    34     ECLFUpdateStop = 0x1

    35     };

    36 

    37 // FORWARD DECLARATIONS

    38 class MCLFProcessObserverExt;

    39 

    40 // CLASS DECLARATION

    41 

    42 /**

    43 *  Process observer interface for Content Listing Framework.

    44 *  Implement this interface to get notified of process events. These process

    45 *  events are generated when update process of CLF server is started

    46 *  and finished.

    47 *

    48 *  @lib ContentListingFramework.lib

    49 *  @since S60 3.1

    50 */

    51 class MCLFProcessObserver

    52     {

    53     public: // New functions

    54 

    55         /**

    56         * Abstract method to handle CLF process event. This method is called

    57         * when process events are generated.

    58         * @since S60 3.1

    59         * @param aProcessEvent The process event that was generated.

    60         */

    61         virtual void HandleCLFProcessEventL( TCLFProcessEvent aProcessEvent ) = 0;

    62 

    63     protected:

    64 

    65         /**

    66         * Destructor.

    67         */

    68         virtual ~MCLFProcessObserver() {}

    69 

    70     private: // Extension interface

    71 

    72         /**

    73         * This member is internal and not intended for use.

    74         */

    75         virtual MCLFProcessObserverExt* Extension() { return NULL; }

    76 

    77     };

    78 

    79 #endif      // MCLFProcessObserver_H

    80 

    81 // End of File