1 /*

     2 * Copyright (c) 2010 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  CCBSUITOPICLISTMONITOR_H

    20 #define  CCBSUITOPICLISTMONITOR_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include <CbsCommon.h>

    25 

    26  

    27 //  FORWARD DECLARATIONS

    28 class MCbs;

    29 class MCbsUiTopicMonitorObserver;

    30 

    31 //  CLASS DEFINITIONS 

    32 

    33 

    34 /**

    35 *  Monitors topic related events.  

    36 */

    37 class CCbsUiTopicListMonitor : public CActive

    38     {

    39     public: // New functions

    40 

    41         /**

    42         * Create an instance of the class. 

    43         *

    44         * @param aServer cbs server

    45         */

    46         static CCbsUiTopicListMonitor* NewL( MCbs& aServer );

    47 

    48         /**

    49         * Destructor.

    50         */

    51         ~CCbsUiTopicListMonitor();

    52 

    53         /**

    54         * Issues the request.

    55         */

    56         void IssueRequest();

    57 

    58     public: // From CActive

    59         

    60         /**

    61         * It is called when server notifies.

    62         */

    63         void RunL();

    64 

    65         /**

    66         * Cancels the request.

    67         */

    68         void DoCancel();

    69 

    70     public: // New functions

    71 

    72         /**

    73         * Adds a observer to this monitor.

    74         *

    75         * @param aObserver Observer to be added.

    76         */

    77         void AddObserverL( MCbsUiTopicMonitorObserver* aObserver );

    78 

    79     private:

    80 

    81         typedef CArrayFixFlat<MCbsUiTopicMonitorObserver*>

    82             TCbsUiMonitorObservers;

    83 

    84         /**

    85         * Constructor.

    86         *

    87         * @param aServer cbs server

    88         */

    89         CCbsUiTopicListMonitor( MCbs& aServer );

    90 

    91         /**

    92         * Finalizes the construction.

    93         */

    94         void ConstructL();

    95 

    96     private: // Data

    97 

    98         // ETrue if request is active.

    99         TBool iContinue;

   100 

   101         // To issue the request.

   102         MCbs& iServer;

   103 

   104         // Observers who are interested in topic changes.

   105         // Monitor doesn't own the observers.

   106         TCbsUiMonitorObservers* iObservers;

   107 

   108         // Which topic handle the event is conserning.

   109         TCbsTopicNumber iTopicNumber;

   110 

   111         // What kind of event has been.

   112         TCbsTopicListEvent iEvent;

   113     };

   114 

   115 #endif      //  CCBSUITOPICLISTMONITOR_H

   116             

   117 // End of File