1 /*

     2 * Copyright (c) 2008 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:  Event listener implementation presence

    15 *

    16 */

    17 

    18 

    19 #ifndef CSERVICEWIDGETTIMER_H

    20 #define CSERVICEWIDGETTIMER_H

    21 

    22 #include <e32base.h>

    23 

    24 // forward declaration

    25 class MServiceWidgetTimerObserver;

    26 // class declaration

    27 

    28 /**

    29  * @class timer class

    30  * @since 5.0

    31  */

    32  

    33 class CServiceWidgetTimer : public CActive

    34     {

    35 public :

    36         // Constructor

    37         /**

    38          * Creates a new CServiceWidgetTimer.

    39          * @param aObserver, reference to timer 

    40          * @return New instance of this class         

    41          */

    42         static CServiceWidgetTimer* NewL(MServiceWidgetTimerObserver& aObserver );

    43         

    44           /**

    45            * Standard C++ destructor.

    46            */

    47          ~CServiceWidgetTimer();

    48          

    49          /**

    50          * start listening

    51          * @param a time interval

    52          */

    53          void StartListening(TTimeIntervalMicroSeconds32 anInterval);

    54          

    55           

    56          /**

    57          * stop listening

    58          */

    59          void StopListening();     

    60                  

    61 private : // From CActive

    62 

    63         /**

    64         *  RunL

    65         */

    66         void RunL();  

    67         

    68         /**

    69         *  DoCancel

    70         */

    71         void DoCancel();

    72 

    73         

    74 private: // Implementation

    75        

    76        /**

    77         * Standard C++ constructor

    78         * @param aObserver, reference to timer

    79        */

    80         CServiceWidgetTimer(MServiceWidgetTimerObserver& aObserver );

    81 

    82        /**

    83         * Performs the 2nd phase of construction.

    84         */

    85        void ConstructL();

    86        

    87 private :

    88     	    

    89        	// not owns : reference to contact update observer

    90         MServiceWidgetTimerObserver& iObserver;

    91         

    92 		/**

    93 		 *  owns : timer to trigger message queue uptation checking

    94 		 */

    95 		RTimer iTimer;

    96 	

    97 	    };

    98 

    99 #endif /*CSERVICEWIDGETTIMER_H*/

   100 

   101 //end of file