1 /*

     2 * Copyright (c) 2006 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:  Listens to ECOM for screensaver plugin changes.

    15 *

    16 */

    17 

    18 

    19 #include "mpslnscreensaverecomobserver.h"

    20 

    21 #include "PslnEcomListener.h"

    22 #include "PslnModel.h"

    23 

    24 // ======== MEMBER FUNCTIONS ========

    25 

    26 // ---------------------------------------------------------------------------

    27 // C++ constructor can NOT contain any code, that might leave.

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

    29 //

    30 CPslnEcomListener::CPslnEcomListener( CPslnModel& aModel, 

    31     MPslnScreenSaverECOMObserver& aObserver ) : 

    32     CActive( CActive::EPriorityStandard ), iModel( &aModel ), 

    33     iObserver( &aObserver )

    34     {

    35     CActiveScheduler::Add( this );

    36     }

    37 

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

    39 // Symbian 2nd phase constructor can leave.

    40 // ---------------------------------------------------------------------------

    41 //

    42 void CPslnEcomListener::ConstructL()

    43     {

    44     iSession = REComSession::OpenL();

    45     // Start ECOM monitoring

    46     StartECOMMonitoringL();

    47     }

    48 

    49 // ---------------------------------------------------------------------------

    50 // Two-phased constructor.

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

    52 //

    53 EXPORT_C CPslnEcomListener* CPslnEcomListener::NewL( 

    54     CPslnModel& aModel, MPslnScreenSaverECOMObserver& aObserver )

    55     {

    56     CPslnEcomListener* self = 

    57         new ( ELeave ) CPslnEcomListener( aModel, aObserver );

    58     CleanupStack::PushL( self );

    59     self->ConstructL();

    60     CleanupStack::Pop( self );

    61     return self;

    62     }

    63 

    64 // ---------------------------------------------------------------------------

    65 // Destructor.

    66 // ---------------------------------------------------------------------------

    67 //

    68 CPslnEcomListener::~CPslnEcomListener()

    69     {

    70     Cancel();

    71     iSession.Close();

    72     }

    73 

    74 // -----------------------------------------------------------------------------

    75 // Called when active object is ready.

    76 // -----------------------------------------------------------------------------

    77 //

    78 void CPslnEcomListener::RunL()

    79     {

    80     iModel->LoadScreensaverArrayL();

    81     iObserver->HandlePluginListChangeL();

    82     StartECOMMonitoringL();

    83     }

    84 

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

    86 // Called when active object is cancelled.

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

    88 //

    89 void CPslnEcomListener::DoCancel()

    90     {

    91     iSession.CancelNotifyOnChange( iStatus );

    92     }

    93 

    94 // -----------------------------------------------------------------------------

    95 // Called when active object is cancelled.

    96 // -----------------------------------------------------------------------------

    97 //

    98 void CPslnEcomListener::StartECOMMonitoringL()

    99     {

   100     if ( !IsActive() )

   101         {

   102         iSession.NotifyOnChange( iStatus );

   103         SetActive();

   104         }

   105     else

   106         {

   107         User::Leave( KErrAlreadyExists );

   108         }

   109     }

   110 

   111 // End of file