1 /*

     2 * Copyright (c) 2009 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 // INCLUDE FILES

    19 #include "cimalertpropertyobserver.h"

    20 #include "mimalertpropertynotificationobserver.h"

    21 

    22 #include <bautils.h>

    23 #include <barsc.h>

    24 #include <e32property.h>

    25 

    26 

    27 // ============================ MEMBER FUNCTIONS ===============================

    28 

    29 // -----------------------------------------------------------------------------

    30 // CIMAlertPropertyObserver::CIMAlertPropertyObserver

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

    32 // might leave.

    33 // -----------------------------------------------------------------------------

    34 //

    35 CIMAlertPropertyObserver::CIMAlertPropertyObserver( 

    36         MIMAlertPropertyNotificationObserver& aObserver )

    37     : CActive( CActive::EPriorityLow ),

    38       iObserver( aObserver )

    39     {

    40     CActiveScheduler::Add( this );

    41     }

    42 

    43 

    44 // -----------------------------------------------------------------------------

    45 // CIMAlertPropertyObserver::NewL

    46 // Two-phased constructor.

    47 // -----------------------------------------------------------------------------

    48 //

    49 CIMAlertPropertyObserver* CIMAlertPropertyObserver::NewL( 

    50         MIMAlertPropertyNotificationObserver& aObserver )

    51     {

    52     CIMAlertPropertyObserver* self = new( ELeave ) CIMAlertPropertyObserver( aObserver );

    53     return self;

    54     }

    55 

    56 

    57 // Destructor

    58 CIMAlertPropertyObserver::~CIMAlertPropertyObserver()

    59     {

    60     if( IsActive() )

    61         {

    62         Cancel();

    63         }

    64     }

    65 

    66 

    67 // -----------------------------------------------------------------------------

    68 // CIMAlertPropertyObserver::ObservePropertyChangeL

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

    70 // -----------------------------------------------------------------------------

    71 //

    72 void CIMAlertPropertyObserver::ObservePropertyChangeL( TUid aCategory, TUint aKey )

    73     {

    74 	if( IsActive() )

    75 		{

    76 		return;

    77 		}

    78     User::LeaveIfError( iProperty.Attach( aCategory, aKey ) );

    79 	iKey = aKey;

    80 	iCategory = aCategory;

    81     iProperty.Subscribe( iStatus );

    82     SetActive();

    83     }

    84 

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

    86 // CIMAlertPropertyObserver::CancelObserve

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

    88 // -----------------------------------------------------------------------------

    89 //

    90 void CIMAlertPropertyObserver::CancelObserve()

    91     {

    92     if( IsActive() )

    93         {

    94         Cancel();

    95         }

    96 	}

    97 

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

    99 // CIMAlertPropertyObserver::RunL

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

   101 // -----------------------------------------------------------------------------

   102 //

   103 void CIMAlertPropertyObserver::RunL()

   104     {

   105 	iProperty.Subscribe( iStatus );

   106 	SetActive();

   107     iObserver.HandlePropertyNotificationEventL( iCategory, iKey );      

   108     }

   109 

   110 // -----------------------------------------------------------------------------

   111 // CIMAlertPropertyObserver::DoCancel

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

   113 // -----------------------------------------------------------------------------

   114 //

   115 void CIMAlertPropertyObserver::DoCancel()

   116     {

   117     iProperty.Cancel();

   118     }

   119 

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

   121 // CIMAlertPropertyObserver::Category

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

   123 // -----------------------------------------------------------------------------

   124 //

   125 TUid CIMAlertPropertyObserver::Category()

   126 	{

   127 	return iCategory;

   128 	}

   129 

   130 // -----------------------------------------------------------------------------

   131 // CIMAlertPropertyObserver::Key

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

   133 // -----------------------------------------------------------------------------

   134 //

   135 TUint CIMAlertPropertyObserver::Key()

   136 	{

   137 	return iKey;

   138 	}

   139 

   140 //  End of File