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 the License "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: 

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include "SystemInfoObserver.h"

    21 

    22 // ============================ MEMBER FUNCTIONS ===============================

    23 

    24 

    25 // -----------------------------------------------------------------------------

    26 // CSystemInfoObserver::CSystemInfoObserver

    27 // Two-phased constructor.

    28 // -----------------------------------------------------------------------------

    29 CSystemInfoObserver* CSystemInfoObserver::NewL( MSystemInfoObserverClient* aClient, TInt aId )

    30     {

    31     CSystemInfoObserver* self = new ( ELeave ) CSystemInfoObserver( aClient, aId );

    32     CleanupStack::PushL( self );

    33     self->ConstructL();

    34     CleanupStack::Pop( self );

    35     return self;

    36     }

    37 

    38 // -----------------------------------------------------------------------------

    39 // CSystemInfoObserver::CSystemInfoObserver

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

    41 // might leave.

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

    43 CSystemInfoObserver::CSystemInfoObserver( MSystemInfoObserverClient* aClient, TInt aId )

    44     : CActive( EPriorityStandard ),

    45       iClient( aClient ),

    46       iId( aId )

    47     {

    48     }

    49 

    50 

    51 // -----------------------------------------------------------------------------

    52 // CSystemInfoObserver::ConstructL

    53 // Symbian 2nd phase constructor can leave.

    54 // -----------------------------------------------------------------------------

    55 void CSystemInfoObserver::ConstructL()

    56     {

    57     CActiveScheduler::Add( this );

    58     }

    59 

    60 // -----------------------------------------------------------------------------

    61 // CSystemInfoObserver::~CSystemInfoObserver()

    62 // Destructor

    63 // -----------------------------------------------------------------------------

    64 CSystemInfoObserver::~CSystemInfoObserver()

    65     {

    66     Cancel();

    67     if ( iClient )

    68       {

    69         iClient->Close( iId );

    70       }

    71     }

    72 

    73 // -----------------------------------------------------------------------------

    74 // CSystemInfoObserver::RequestNotification

    75 // -----------------------------------------------------------------------------

    76 void CSystemInfoObserver::RequestNotificationL()

    77     {

    78     if ( !IsActive() )

    79         {

    80         iClient->SubscribeL( iId, iStatus );

    81         SetActive();

    82         }

    83     }

    84 

    85 // -----------------------------------------------------------------------------

    86 // CSystemInfoObserver::RunL

    87 // -----------------------------------------------------------------------------

    88 void CSystemInfoObserver::RunL()

    89     {

    90     if( iStatus == KErrNone )

    91        {

    92        iClient->UpdateL( iId );

    93        iClient->SubscribeL( iId, iStatus );  // FUTURE consider letting client decide if to do this

    94        SetActive();

    95        }

    96     }

    97 

    98 // -----------------------------------------------------------------------------

    99 // CSystemInfoObserver::RunError

   100 // -----------------------------------------------------------------------------

   101 TInt CSystemInfoObserver::RunError( TInt /*aError*/ )

   102     {

   103     return KErrNone;

   104     }

   105 

   106 // -----------------------------------------------------------------------------

   107 // CSystemInfoObserver::DoCancel

   108 // -----------------------------------------------------------------------------

   109 void CSystemInfoObserver::DoCancel()

   110     {

   111     iClient->Cancel( iId );

   112     }

   113 

   114 //  End of File