1 /*

     2 * Copyright (c) 2005-2005 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:  

    15 *

    16 */

    17 

    18 

    19 #include <aipspropertyobserver.h>

    20 #include "aissaverstatusobserver.h"

    21 #include <screensaverinternalpskeys.h> // this include needs to be last

    22 #include "aifwpanic.h"

    23 #include "debug.h"

    24 

    25 CAiSSaverStatusObserver::CAiSSaverStatusObserver()

    26     {

    27     }

    28     

    29 CAiSSaverStatusObserver::~CAiSSaverStatusObserver()

    30     {

    31     }

    32 

    33 CAiSSaverStatusObserver* CAiSSaverStatusObserver::NewL( MAiStateManager* aStateManager )

    34     {

    35     CAiSSaverStatusObserver* self = new (ELeave) CAiSSaverStatusObserver();

    36     CleanupStack::PushL(self);

    37     self->ConstructL( aStateManager );

    38     CleanupStack::Pop(self);

    39     return self;

    40     }

    41 

    42 void CAiSSaverStatusObserver::ConstructL( MAiStateManager* aStateManager )

    43     {

    44     BaseConstructL( TCallBack( HandleScreenSaverStateChanged, this ),

    45                     KPSUidScreenSaver,

    46                     KScreenSaverOn,

    47 		            aStateManager );

    48     }

    49     

    50 TAiStateChanges CAiSSaverStatusObserver::Status()

    51     {

    52     TInt value = 0;

    53     Tint err = iObserver->Get( value );

    54     if( ( value == 0 ) ||

    55         ( err != KErrNone ) )

    56     	{

    57     	return ESMAIScreensaverInactive;

    58     	}

    59     else

    60     	{

    61     	return ESMAIScreensaverActive;

    62     	} 

    63     }

    64 

    65 TInt CAiSSaverStatusObserver::HandleScreenSaverStateChanged( TAny* aPtr )

    66     {

    67     CAiSSaverStatusObserver* self =

    68                 static_cast<CAiSSaverStatusObserver*>( aPtr );

    69 

    70     __ASSERT_DEBUG( self, 

    71                     AiFwPanic::Panic( AiFwPanic::EAiFwPanic_NullPointerReference ) );

    72 

    73     TInt value = 0;

    74     TInt err = self->iObserver->Get( value );

    75 	

    76     if ( ( value == 0 ) ||

    77          ( err != KErrNone ) )

    78 		{

    79         // screensaver off

    80         __PRINTS("XAI: Screen saver = OFF");

    81         self->iStateManager->ReportStateChange( ESMAIScreensaverInactive );

    82 		}

    83     else

    84 		{

    85         // screensaver on

    86         __PRINTS("XAI: Screen saver = ON");

    87         self->iStateManager->ReportStateChange( ESMAIScreensaverActive );

    88 		}

    89 	

    90     return KErrNone;

    91     }

    92