1 /*

     2 * Copyright (c) 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 #ifndef CTSCENREPLISTENER_H

    19 #define CTSCENREPLISTENER_H

    20 

    21 #include <e32base.h>

    22 

    23 class CRepository;

    24 

    25 /**

    26  * Observer interface for getting notifications about a cenrep key change.

    27  */

    28 class MTsCenrepChangeObserver

    29     {

    30 public:

    31     virtual void CenrepChanged( TUint32 aKey, TInt aNewValue ) = 0;

    32     };

    33 

    34 /**

    35  * Class to get notifications about changes to a cenrep key.

    36  */

    37 NONSHARABLE_CLASS( CTsCenrepListener ) : public CActive

    38     {

    39 public:

    40     /**

    41      * Fist step constructor

    42      */

    43     IMPORT_C static CTsCenrepListener* NewL(const TUid& aRep, TUint32 aKey,

    44                                             MTsCenrepChangeObserver& aObserver);

    45     

    46     /**

    47      * Fist step constructor

    48      */

    49     IMPORT_C static CTsCenrepListener* NewLC(const TUid& aRep, TUint32 aKey,

    50                                              MTsCenrepChangeObserver& aObserver);

    51     

    52     /**

    53      * Destructor.

    54      */

    55     IMPORT_C ~CTsCenrepListener();

    56     

    57     /**

    58      * Returns the current value of the watched key.

    59      */

    60     IMPORT_C TInt Value();

    61     

    62 private:

    63     /**

    64      * Constructor.

    65      * Starts listening for the key.

    66      */

    67     CTsCenrepListener(TUint32 aKey,

    68         MTsCenrepChangeObserver& aObserver );

    69     

    70     /**

    71      * Second step constructor 

    72      */

    73     void ConstructL(const TUid& aRep);

    74     

    75     void DoCancel();

    76     void RunL(); 

    77     TInt RunError( TInt aError );

    78     

    79     MTsCenrepChangeObserver& iObserver;

    80     CRepository* iRep;

    81     TUint32 iKey;

    82     };

    83     

    84 #endif /*CTSCENREPLISTENER_H*/