1 /*

     2 * Copyright (c) 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:  Publish & Subscribe property change observer implementation

    15 *

    16 */

    17 

    18 

    19 

    20 // INCLUDE FILES

    21 #include "CIMPSCenrepObserver.h"

    22 #include "MIMPSPropertyNotificationObserver.h"

    23 

    24 #include <bautils.h>

    25 #include <barsc.h>

    26 #include <centralrepository.h>

    27 

    28 // ============================ MEMBER FUNCTIONS ===============================

    29 

    30 // -----------------------------------------------------------------------------

    31 // CIMPSCenrepObserver::CIMPSCenrepObserver

    32 // C++ default constructor can NOT contain any code, that

    33 // might leave.

    34 // -----------------------------------------------------------------------------

    35 //

    36 CIMPSCenrepObserver::CIMPSCenrepObserver( MIMPSPropertyNotificationObserver& aObserver )

    37         : CActive( CActive::EPriorityLow ),

    38         iObserver( aObserver )

    39     {

    40     }

    41 

    42 // -----------------------------------------------------------------------------

    43 // CIMPSCenrepObserver::ConstructL

    44 // Symbian 2nd phase constructor can leave.

    45 // -----------------------------------------------------------------------------

    46 //

    47 void CIMPSCenrepObserver::ConstructL()

    48     {

    49     CActiveScheduler::Add( this );

    50     }

    51 

    52 // -----------------------------------------------------------------------------

    53 // CIMPSPropertyObserver::NewL

    54 // Two-phased constructor.

    55 // -----------------------------------------------------------------------------

    56 //

    57 CIMPSCenrepObserver* CIMPSCenrepObserver::NewL( MIMPSPropertyNotificationObserver& aObserver )

    58     {

    59     CIMPSCenrepObserver* self = new( ELeave ) CIMPSCenrepObserver( aObserver );

    60 

    61     CleanupStack::PushL( self );

    62     self->ConstructL();

    63     CleanupStack::Pop();

    64 

    65     return self;

    66     }

    67 

    68 

    69 // Destructor

    70 CIMPSCenrepObserver::~CIMPSCenrepObserver()

    71     {

    72     if ( IsActive() )

    73         {

    74         Cancel();

    75         }

    76     delete iRepository;

    77     }

    78 

    79 

    80 // -----------------------------------------------------------------------------

    81 // CIMPSCenrepObserver::ObservePropertyChangeL

    82 // (other items were commented in a header).

    83 // -----------------------------------------------------------------------------

    84 //

    85 void CIMPSCenrepObserver::ObservePropertyChangeL( TUid aCategory, TUint aKey )

    86     {

    87     if ( IsActive() )

    88         {

    89         return;

    90         }

    91 

    92     CRepository* tempRepository = CRepository::NewL( aCategory );

    93     delete iRepository;

    94     iRepository = tempRepository;

    95 

    96     User::LeaveIfError( iRepository->NotifyRequest( aKey, iStatus ) );

    97 

    98     iKey = aKey;

    99     iCategory = aCategory;

   100 

   101     SetActive();

   102     }

   103 

   104 // -----------------------------------------------------------------------------

   105 // CIMPSCenrepObserver::CancelObserve

   106 // (other items were commented in a header).

   107 // -----------------------------------------------------------------------------

   108 //

   109 void CIMPSCenrepObserver::CancelObserve()

   110     {

   111     if ( IsActive() )

   112         {

   113         Cancel();

   114         }

   115     }

   116 

   117 // -----------------------------------------------------------------------------

   118 // CIMPSCenrepObserver::RunL

   119 // (other items were commented in a header).

   120 // -----------------------------------------------------------------------------

   121 //

   122 void CIMPSCenrepObserver::RunL()

   123     {

   124     // subscribe to a new notification

   125     User::LeaveIfError( iRepository->NotifyRequest( iKey, iStatus ) );

   126     SetActive();

   127     // notify observer

   128     iObserver.HandlePropertyNotificationEventL( iCategory, iKey );

   129     }

   130 

   131 // -----------------------------------------------------------------------------

   132 // CIMPSCenrepObserver::DoCancel

   133 // (other items were commented in a header).

   134 // -----------------------------------------------------------------------------

   135 //

   136 void CIMPSCenrepObserver::DoCancel()

   137     {

   138     iRepository->NotifyCancel( iKey );

   139     }

   140 

   141 // -----------------------------------------------------------------------------

   142 // CIMPSCenrepObserver::Category

   143 // (other items were commented in a header).

   144 // -----------------------------------------------------------------------------

   145 //

   146 TUid CIMPSCenrepObserver::Category()

   147     {

   148     return iCategory;

   149     }

   150 

   151 // -----------------------------------------------------------------------------

   152 // CIMPSCenrepObserver::Key

   153 // (other items were commented in a header).

   154 // -----------------------------------------------------------------------------

   155 //

   156 TUint CIMPSCenrepObserver::Key()

   157     {

   158     return iKey;

   159     }

   160 

   161 //  End of File