camerauis/cameraapp/generic/src/CamSAEventActive.cpp
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     1 /*
       
     2 * Copyright (c) 2007 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:  Handler for System Agent events*
       
    15 */
       
    16 
       
    17 
       
    18 // INCLUDE FILES
       
    19 #include <saclient.h>
       
    20 #include "CamSAEventActive.h"
       
    21 #include "CamAppController.h"
       
    22 
       
    23 // We need to use a large enough priority, so that
       
    24 // we get system agent events even when incoming call
       
    25 // occurs during recording.
       
    26 const TInt EPrioritySuperHigh = 2000;
       
    27 
       
    28 // ========================= MEMBER FUNCTIONS ================================
       
    29 
       
    30 // ---------------------------------------------------------
       
    31 // CCamSAEventActive::CCamSAEventActive
       
    32 // C++ constructor
       
    33 // ---------------------------------------------------------
       
    34 //
       
    35 CCamSAEventActive::CCamSAEventActive( CCamAppController& aController,
       
    36                                       const RSystemAgent& aSystemAgent )
       
    37     : CActive( EPrioritySuperHigh ), iController( aController ),
       
    38       iSystemAgent( aSystemAgent )
       
    39     {
       
    40     iRequestIssued = EFalse;
       
    41     CActiveScheduler::Add( this );
       
    42     }
       
    43 
       
    44 // ---------------------------------------------------------
       
    45 // Destructor
       
    46 // ---------------------------------------------------------
       
    47 //
       
    48 CCamSAEventActive::~CCamSAEventActive() 
       
    49   {
       
    50   PRINT( _L("Camera => ~CCamSAEventActive") );
       
    51   Cancel();
       
    52   PRINT( _L("Camera <= ~CCamSAEventActive") );
       
    53   }
       
    54 
       
    55 // ---------------------------------------------------------
       
    56 // CCamSAEventActive::IssueRequest
       
    57 // Issue a request to receive events from System Agent
       
    58 // ---------------------------------------------------------
       
    59 //
       
    60 void CCamSAEventActive::IssueRequest()
       
    61     {
       
    62     iSAEvent.SetRequestStatus( iStatus );
       
    63     if ( !iRequestIssued ) 
       
    64         {
       
    65         iRequestIssued = ETrue;
       
    66         iSystemAgent.NotifyOnAnyEvent( iSAEvent );
       
    67         SetActive() ;       
       
    68         }
       
    69     }
       
    70 
       
    71 // ---------------------------------------------------------
       
    72 // CCamSAEventActive::DoCancel   
       
    73 // Cancel the request to receive events from System Agent 
       
    74 // ---------------------------------------------------------
       
    75 //
       
    76 void CCamSAEventActive::DoCancel() 
       
    77     {
       
    78     iSystemAgent.NotifyEventCancel();
       
    79     iRequestIssued = EFalse;
       
    80     }
       
    81 
       
    82 // ---------------------------------------------------------
       
    83 // CCamSAEventActive::RunError
       
    84 // Called when RunL() is trapped by Active Scheduler
       
    85 // ---------------------------------------------------------
       
    86 //
       
    87 TInt CCamSAEventActive::RunError( TInt /*aError*/ )
       
    88     {
       
    89     Cancel();
       
    90     IssueRequest();
       
    91     return KErrNone;
       
    92     }
       
    93 
       
    94 // ---------------------------------------------------------
       
    95 // Called when an event comes from System Agent
       
    96 // ---------------------------------------------------------
       
    97 //
       
    98 void CCamSAEventActive::RunL()
       
    99     {   
       
   100     iRequestIssued = EFalse;
       
   101     iController.HandleSysAgentEventL( iSAEvent );
       
   102     IssueRequest();
       
   103     }
       
   104 
       
   105 // End of File