1 /*

     2 * Copyright (c) 2002 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:  Header file for the CCbsUiTopicListMonitor class.

    15 *

    16 *

    17 */

    18 

    19 

    20 #ifndef     CCBSUITOPICLISTMONITOR_H

    21 #define     CCBSUITOPICLISTMONITOR_H

    22 

    23 // INCLUDES

    24 #include <e32base.h>

    25 #include <CbsCommon.h>

    26 

    27  

    28 //  FORWARD DECLARATIONS

    29 class MCbs;

    30 class MCbsUiTopicMonitorObserver;

    31 

    32 //  CLASS DEFINITIONS 

    33 

    34 

    35 /**

    36 *  Monitors topic related events.  

    37 */

    38 class CCbsUiTopicListMonitor : public CActive

    39     {

    40     public: // New functions

    41 

    42         /**

    43         * Create an instance of the class. 

    44         *

    45         * @param aServer cbs server

    46         */

    47         static CCbsUiTopicListMonitor* NewL( MCbs& aServer );

    48 

    49         /**

    50         * Destructor.

    51         */

    52         ~CCbsUiTopicListMonitor();

    53 

    54         /**

    55         * Issues the request.

    56         */

    57         void IssueRequest();

    58 

    59     public: // From CActive

    60         

    61         /**

    62         * It is called when server notifies.

    63         */

    64         void RunL();

    65 

    66         /**

    67         * Cancels the request.

    68         */

    69         void DoCancel();

    70 

    71     public: // New functions

    72 

    73         /**

    74         * Adds a observer to this monitor.

    75         *

    76         * @param aObserver Observer to be added.

    77         */

    78         void AddObserverL( MCbsUiTopicMonitorObserver* aObserver );

    79 

    80     private:

    81 

    82         typedef CArrayFixFlat<MCbsUiTopicMonitorObserver*>

    83             TCbsUiMonitorObservers;

    84 

    85         /**

    86         * Constructor.

    87         *

    88         * @param aServer cbs server

    89         */

    90         CCbsUiTopicListMonitor( MCbs& aServer );

    91 

    92         /**

    93         * Finalizes the construction.

    94         */

    95         void ConstructL();

    96 

    97     private: // Data

    98 

    99         // ETrue if request is active.

   100         TBool iContinue;

   101 

   102         // To issue the request.

   103         MCbs& iServer;

   104 

   105         // Observers who are interested in topic changes.

   106         // Monitor doesn't own the observers.

   107         TCbsUiMonitorObservers* iObservers;

   108 

   109         // Which topic handle the event is conserning.

   110         TCbsTopicNumber iTopicNumber;

   111 

   112         // What kind of event has been.

   113         TCbsTopicListEvent iEvent;

   114     };

   115 

   116 #endif      //  CCBSUITOPICLISTMONITOR_H

   117             

   118 // End of File