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 CTSPROPERTYLISTENER_H

    19 #define CTSPROPERTYLISTENER_H

    20 

    21 #include <e32base.h>

    22 #include <e32property.h>

    23 

    24 /**

    25  * Observer interface for getting notifications about a P&S property change.

    26  */

    27 class MTsPropertyChangeObserver

    28     {

    29 public:

    30     virtual void PropertyChanged( TUid aCategory, TUint aKey ) = 0;

    31     };

    32 

    33 /**

    34  * Class to get notifications about changes to a P&S property.

    35  */

    36 NONSHARABLE_CLASS( CTsPropertyListener ) : public CActive

    37     {

    38 public:

    39     /**

    40      * Constructor.

    41      * Starts listening for the property with the given category/key.

    42      */

    43     IMPORT_C CTsPropertyListener( TUid aCategory,

    44         TUint aKey, MTsPropertyChangeObserver& aObserver );

    45         

    46     /**

    47      * Destructor.

    48     */

    49     IMPORT_C ~CTsPropertyListener();

    50     

    51 private:

    52     void DoCancel();

    53     void RunL(); 

    54     TInt RunError( TInt aError );

    55 

    56     MTsPropertyChangeObserver& iObserver;

    57     RProperty iProperty;

    58     TUid iCategory;

    59     TUint iKey;

    60     };

    61 

    62 #endif /*CTSPROPERTYLISTENER_H*/

    63 

    64 // End of file