phoneclientserver/phoneserver/Src/Ussd/CPhSrvUssdReplyTimer.cpp
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     1 /*
       
     2 * Copyright (c) 2002-2004 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:  USSD Reply Timer.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 // INCLUDE FILES
       
    21 #include "CPhSrvUssdReplyTimer.h"
       
    22 #include "MPhSrvUssdReplyTimerObserver.h"
       
    23 
       
    24 
       
    25 // CONSTANTS
       
    26 const TUint KPhSrvUssdReplyTimerInterval = 300000000; // 5 min
       
    27 
       
    28 
       
    29 // ============================ MEMBER FUNCTIONS ===============================
       
    30 
       
    31 // -----------------------------------------------------------------------------
       
    32 // CPhSrvUssdReplyTimer::CPhSrvUssdReplyTimer
       
    33 //
       
    34 // Constructor
       
    35 //
       
    36 // -----------------------------------------------------------------------------
       
    37 //
       
    38 CPhSrvUssdReplyTimer::CPhSrvUssdReplyTimer( 
       
    39     MPhSrvUssdReplyTimerObserver& aObserver )
       
    40 :   CTimer( CActive::EPriorityStandard ), 
       
    41     iObserver( aObserver )
       
    42     {
       
    43     CActiveScheduler::Add( this );
       
    44     }
       
    45 
       
    46 
       
    47 // -----------------------------------------------------------------------------
       
    48 // CPhSrvUssdReplyTimer::NewL
       
    49 // Two-phased constructor.
       
    50 // -----------------------------------------------------------------------------
       
    51 //
       
    52 CPhSrvUssdReplyTimer* CPhSrvUssdReplyTimer::NewL( 
       
    53     MPhSrvUssdReplyTimerObserver& aObserver )
       
    54     {
       
    55     CPhSrvUssdReplyTimer* self = 
       
    56         new( ELeave ) CPhSrvUssdReplyTimer( aObserver );
       
    57     CleanupStack::PushL( self );
       
    58     self->ConstructL();
       
    59     CleanupStack::Pop(); // self
       
    60     return self;
       
    61     }
       
    62 
       
    63 
       
    64 // -----------------------------------------------------------------------------
       
    65 // CPhSrvUssdReplyTimer::~CPhSrvUssdReplyTimer
       
    66 //
       
    67 // Destructor
       
    68 //
       
    69 // -----------------------------------------------------------------------------
       
    70 //
       
    71 CPhSrvUssdReplyTimer::~CPhSrvUssdReplyTimer()
       
    72     {
       
    73     Cancel();
       
    74     iTimer.Close();
       
    75     }
       
    76 
       
    77 
       
    78 // -----------------------------------------------------------------------------
       
    79 // CPhSrvUssdReplyTimer::ConstructL
       
    80 //
       
    81 // Symbian OS second phase constructor
       
    82 //
       
    83 // -----------------------------------------------------------------------------
       
    84 //
       
    85 void CPhSrvUssdReplyTimer::ConstructL()
       
    86     {
       
    87     CTimer::ConstructL();
       
    88     }
       
    89 
       
    90 
       
    91 // -----------------------------------------------------------------------------
       
    92 // CPhSrvUssdReplyTimer::IsTimerActive
       
    93 // -----------------------------------------------------------------------------
       
    94 //
       
    95 TBool CPhSrvUssdReplyTimer::IsTimerActive() const
       
    96     {
       
    97     return iTimeLeft.Int() != 0;
       
    98     }
       
    99 
       
   100 
       
   101 // -----------------------------------------------------------------------------
       
   102 // CPhSrvUssdReplyTimer::Start
       
   103 // -----------------------------------------------------------------------------
       
   104 //
       
   105 void CPhSrvUssdReplyTimer::Start()
       
   106     {
       
   107     Cancel();
       
   108     iTimeLeft = KPhSrvUssdReplyTimerInterval;
       
   109     iLastStartTime.UniversalTime();
       
   110     After( iTimeLeft );
       
   111     }
       
   112 
       
   113 
       
   114 // -----------------------------------------------------------------------------
       
   115 // CPhSrvUssdReplyTimer::Pause
       
   116 // -----------------------------------------------------------------------------
       
   117 //
       
   118 void CPhSrvUssdReplyTimer::Pause()
       
   119     {
       
   120     if ( !IsActive() )
       
   121         {
       
   122         return;
       
   123         }
       
   124     Cancel();
       
   125     iTimeLeft = KPhSrvUssdReplyTimerInterval;           
       
   126     }
       
   127 
       
   128 
       
   129 // -----------------------------------------------------------------------------
       
   130 // CPhSrvUssdReplyTimer::Continue
       
   131 // -----------------------------------------------------------------------------
       
   132 //
       
   133 void CPhSrvUssdReplyTimer::Continue()
       
   134     {
       
   135     if ( IsActive() )
       
   136         {
       
   137         return;
       
   138         }
       
   139     
       
   140     if ( iTimeLeft.Int() <= 0 )
       
   141         {
       
   142         iTimeLeft = 0;
       
   143         TRAP_IGNORE(  iObserver.UssdReplyTimerObserverHandleExpiredL( KErrNone ) );
       
   144         return;
       
   145         }
       
   146     
       
   147     iLastStartTime.UniversalTime();
       
   148     After( iTimeLeft );
       
   149     }
       
   150 
       
   151 
       
   152 // -----------------------------------------------------------------------------
       
   153 // CPhSrvUssdReplyTimer::Stop
       
   154 // -----------------------------------------------------------------------------
       
   155 //
       
   156 void CPhSrvUssdReplyTimer::Stop()
       
   157     {
       
   158     Cancel();
       
   159     iTimeLeft = 0;
       
   160     }
       
   161 
       
   162 
       
   163 // -----------------------------------------------------------------------------
       
   164 // CPhSrvUssdReplyTimer::RunL
       
   165 //
       
   166 // Called when the timer expires. Notify observer
       
   167 //
       
   168 // -----------------------------------------------------------------------------
       
   169 //
       
   170 void CPhSrvUssdReplyTimer::RunL()
       
   171     {
       
   172     // Called only when status is KErrNone, since when the system
       
   173     // time is changed, timers may be completed with KErrAbort.
       
   174     iTimeLeft = 0;
       
   175     if ( iStatus.Int() == KErrNone )
       
   176         {
       
   177         iObserver.UssdReplyTimerObserverHandleExpiredL( KErrNone );
       
   178         }
       
   179     }
       
   180 
       
   181 
       
   182 // -----------------------------------------------------------------------------
       
   183 // CPhSrvUssdReplyTimer::RunError
       
   184 //
       
   185 // Called when RunL leaves. 
       
   186 // The RunL can leave in observer side, then it is ok to just return KErrNone.
       
   187 //
       
   188 // -----------------------------------------------------------------------------
       
   189 //
       
   190 TInt CPhSrvUssdReplyTimer::RunError( TInt /*aError*/ )
       
   191     {
       
   192     return KErrNone;
       
   193     }
       
   194 
       
   195 
       
   196 //  End of File