--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluirendering/uiengine/src/xnpropertysubscriber.cpp	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,105 @@
+/*
+* Copyright (c) 2008 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:  Subscribes properties from P&S
+*
+*/
+
+#include "xnpropertysubscriber.h"
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CXnPropertySubscriber::CXnPropertySubscriber(
+    MXnPropertyChangeObserver& aObserver,
+    const TUint32 aKey )
+    : CActive( EPriorityStandard ),
+    iPropertyChangeObserver( aObserver ),
+    iKey( aKey )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CXnPropertySubscriber* CXnPropertySubscriber::NewLC(
+    const TUid aUid,
+    const TUint32 aKey,
+    MXnPropertyChangeObserver& aObserver )
+    {
+    CXnPropertySubscriber* self =
+        new ( ELeave ) CXnPropertySubscriber( aObserver, aKey );
+    CleanupStack::PushL( self );
+    self->ConstructL( aUid, aKey );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CXnPropertySubscriber* CXnPropertySubscriber::NewL(
+    const TUid aUid,
+    const TUint32 aKey,
+    MXnPropertyChangeObserver& aObserver )
+    {
+    CXnPropertySubscriber* self = CXnPropertySubscriber::NewLC(
+        aUid, aKey, aObserver );
+    CleanupStack::Pop(); // self;
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CXnPropertySubscriber::ConstructL(
+    const TUid aUid,
+    const TUint32 aKey )
+    {
+    User::LeaveIfError( iProperty.Attach( aUid, aKey ) );
+    CActiveScheduler::Add( this ); // Add to scheduler
+    // initial subscription and process current property value
+    RunL();
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CXnPropertySubscriber::~CXnPropertySubscriber()
+    {
+    Cancel(); // Cancel any request, if outstanding
+    iProperty.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CXnPropertySubscriber::DoCancel()
+    {
+    iProperty.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CXnPropertySubscriber::RunL()
+    {
+    // resubscribe before processing new value to prevent missing updates
+    iProperty.Subscribe( iStatus );
+    SetActive();
+
+    TInt intValue;
+    if ( iProperty.Get( intValue ) != KErrNotFound )
+        {
+        iPropertyChangeObserver.PropertyChangedL( iKey, intValue );
+        }
+    }