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:  CSysApGanPropertyListener class definition. Class for

    15 *                RProperty changes from GAN server.

    16 */

    17 

    18 

    19 #ifndef C_SYSAPGANPROPERTYLISTENER_H

    20 #define C_SYSAPGANPROPERTYLISTENER_H

    21 

    22 #include <e32base.h>

    23 #include <e32property.h>

    24 #include "msysapganpropertyobserver.h"

    25 

    26 /**

    27  *  Listen RProperty events.

    28  */

    29 NONSHARABLE_CLASS( CSysApGanPropertyListener ) : 

    30     public CActive

    31     {

    32 public:

    33     /**

    34      * Static constructor.

    35      * @param aProperty Property to listen to.

    36      * @param aObserver Object that is informed about about new IAP usage.

    37      */

    38     static CSysApGanPropertyListener* NewL( 

    39         RProperty& aProperty,

    40         MSysApGanPropertyObserver& aObserver );

    41     

    42     /**

    43      * Destructor.

    44      */

    45     ~CSysApGanPropertyListener();

    46 

    47 protected:

    48     /**

    49      * C++ constructor.

    50      * @param aProperty Property to listen to.

    51      * @param aObserver Object that is informed about about new IAP usage.

    52      */

    53     CSysApGanPropertyListener( 

    54         RProperty& aProperty,

    55         MSysApGanPropertyObserver& aObserver );

    56     

    57     /**

    58      * Symbian 2nd phase constructor.

    59      */

    60     void ConstructL();

    61     

    62 public:

    63     /**

    64      * Subscribes to a property. 

    65      */

    66     void Subscribe();

    67 

    68 protected: // From CActive

    69 

    70     /**

    71      * Handles an active object's request completion event.

    72      */

    73     void RunL();

    74     

    75     /**

    76      * Cancels asynchronous request.

    77      */

    78     void DoCancel();

    79     

    80     /**

    81      * Handles a leave occurring in RunL().

    82      * @param aError Error that caused RunL to leave.

    83      */

    84     TInt RunError( TInt aError );   

    85 

    86 protected: // Data

    87 

    88     /**

    89      * Observer to notifiy about property changes.

    90      */

    91     MSysApGanPropertyObserver& iObserver;

    92     

    93     /**

    94      * Property to listen to.

    95      */

    96     RProperty&   iProperty;

    97     

    98     };

    99 

   100 #endif // C_SYSAPGANPROPERTYLISTENER_H