--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/exths/src/plugincontainer/propertyobserver.cpp Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,134 @@
+/*
+* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+ *
+*/
+
+
+// INCLUDE FILES
+#include "propertyobserver.h"
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CPropertyObserver::CPropertyObserver
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CPropertyObserver::CPropertyObserver(MPropertyChangeHandler& aHandler,
+ const TUid& aCategory,
+ const TUint& aKey)
+: CActive( CActive::EPriorityStandard ),
+ iCategory( aCategory ),
+ iKey( aKey ),
+ iHandler( aHandler )
+{
+}
+
+// -----------------------------------------------------------------------------
+// CPropertyObserver::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CPropertyObserver::ConstructL(void)
+{
+ CActiveScheduler::Add( this );
+
+ User::LeaveIfError( iProperty.Attach( iCategory, iKey ) );
+
+ // Start observing...
+ Subscribe();
+
+ // Notify the initial value if needed...
+// NotifyCurrentValue();
+}
+
+// -----------------------------------------------------------------------------
+// CPropertyObserver::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CPropertyObserver* CPropertyObserver::NewL(MPropertyChangeHandler& aHandler,
+ const TUid& aCategory,
+ const TUint& aKey)
+{
+ CPropertyObserver* self = new( ELeave )CPropertyObserver( aHandler, aCategory, aKey );
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop( self );
+ return self;
+}
+
+// Destructor
+CPropertyObserver::~CPropertyObserver()
+{
+ Deque();
+ iProperty.Cancel();
+ iProperty.Close();
+}
+
+// -----------------------------------------------------------------------------
+// CPropertyObserver::RunL
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CPropertyObserver::RunL(void)
+{
+ if( iStatus.Int() == KErrNone )
+ {
+ Subscribe();
+ NotifyCurrentValue();
+ }
+}
+
+// -----------------------------------------------------------------------------
+// CPropertyObserver::DoCancel
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CPropertyObserver::DoCancel(void)
+{
+ iProperty.Cancel();
+}
+
+// -----------------------------------------------------------------------------
+// CPropertyObserver::Subscribe
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CPropertyObserver::Subscribe(void)
+{
+ iProperty.Subscribe( iStatus );
+ SetActive();
+}
+
+// -----------------------------------------------------------------------------
+// CPropertyObserver::NotifyCurrentValue
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CPropertyObserver::NotifyCurrentValue(void)
+{
+ TInt value;
+
+ if( iProperty.Get( iCategory, iKey, value ) == KErrNone )
+ {
+ iHandler.HandlePropertyChange( iCategory, iKey, value );
+ }
+}
+
+
+// End of File