1 /*

     2 * Copyright (c) 2002 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:  A timer based class used to notify objects when an automatic

    15 *                response is expected.

    16 *

    17 */

    18 

    19 

    20 #ifndef CPHSRVUSSDREPLYTIMER_H

    21 #define CPHSRVUSSDREPLYTIMER_H

    22 

    23 

    24 // INCLUDES

    25 #include <e32base.h>

    26 

    27 

    28 // FORWARD DECLARATIONS

    29 class MPhSrvUssdReplyTimerObserver;

    30 

    31 

    32 // CLASS DECLARATION

    33 

    34 /**

    35 *  A timer based class used to notify objects when an 

    36 *  automatic response is expected

    37 *

    38 *  @since 1.0

    39 */

    40 class CPhSrvUssdReplyTimer : public CTimer

    41     {

    42     public:  // Constructors and destructor

    43 

    44         /**

    45         * Two-phased constructor.

    46         *

    47         * @param aObserver Observer for reply timer expiration event.

    48         */

    49         static CPhSrvUssdReplyTimer* 

    50             NewL( MPhSrvUssdReplyTimerObserver& aObserver );

    51 

    52         /**

    53         * Destructor.

    54         */

    55         ~CPhSrvUssdReplyTimer();

    56         

    57 

    58     public: // New functions

    59 

    60         /**

    61         * Query is the timer active or not.

    62         * 

    63         * @return True if timer is running/paused.

    64         */

    65         TBool IsTimerActive() const;

    66 

    67         /**

    68         * Start the timer.

    69         */

    70         void Start();

    71 

    72         /**

    73         * Pause the timer.

    74         */

    75         void Pause();

    76 

    77         /**

    78         * Continue paused timer.

    79         */

    80         void Continue();

    81 

    82         /**

    83         * Stop the timer.

    84         */

    85         void Stop();

    86 

    87 

    88     private: // Functions from base classes

    89 

    90         /**

    91         * From CActive

    92         */

    93         void RunL();

    94 

    95         /**

    96         * From CActive

    97         */

    98         TInt RunError( TInt aError );

    99 

   100 

   101     private:

   102 

   103         /**

   104         * C++ constructor.

   105         */

   106         CPhSrvUssdReplyTimer( MPhSrvUssdReplyTimerObserver& aObserver );

   107 

   108         /**

   109         * By default Symbian 2nd phase constructor is private.

   110         */

   111         void ConstructL();

   112 

   113 

   114     private:     // Data

   115 

   116         // The actual timer.

   117         RTimer iTimer;

   118 

   119         // The counter for remaining time.

   120         TTimeIntervalMicroSeconds32 iTimeLeft;

   121 

   122         // When the timer was started last time.

   123         TTime iLastStartTime;

   124 

   125         // Observer for timer events.

   126         MPhSrvUssdReplyTimerObserver& iObserver;

   127     };

   128 

   129 #endif // CPHSRVUSSDREPLYTIMER_H

   130 

   131 

   132 // End of File