diff -r 000000000000 -r 79c6a41cd166 idlefw/src/utility/caipspropertyobserver.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlefw/src/utility/caipspropertyobserver.cpp	Thu Dec 17 08:54:17 2009 +0200
@@ -0,0 +1,147 @@
+/*
+* Copyright (c) 2005-2006 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:  Publish and subscribe parameter observer implementation.
+*
+*/
+
+
+#include "caipspropertyobserver.h"
+
+// ---------------------------------------------------------------------------
+// void ConstructL( TCallBack aCallBack, TUid aCategory, TInt aKey )
+// ---------------------------------------------------------------------------
+//
+void CPSPropertyObserver::ConstructL()
+    {
+    User::LeaveIfError( iProperty.Attach( iCategory, iKey ) );
+    CActiveScheduler::Add( this );
+
+    iProperty.Subscribe( iStatus );
+    SetActive();
+    }
+
+// ---------------------------------------------------------------------------
+// CPSPropertyObserver()
+// ---------------------------------------------------------------------------
+//
+CPSPropertyObserver::CPSPropertyObserver( TCallBack aCallBack,
+                                          TUid aCategory,
+                                          TInt aKey )
+  : CActive( EPriorityStandard ),
+    iCallBack( aCallBack ),
+    iCategory( aCategory ),
+    iKey( aKey )
+    {
+    }
+    
+// ---------------------------------------------------------------------------
+// CPSPropertyObserver* NewL( TCallBack aCallBack, TUid aCategory, TInt aKey )
+// ---------------------------------------------------------------------------
+//
+CPSPropertyObserver* CPSPropertyObserver::NewL( TCallBack aCallBack,
+                                                TUid aCategory,
+                                                TInt aKey )
+    { 
+    CPSPropertyObserver* self = new ( ELeave ) CPSPropertyObserver( aCallBack,
+                                                                    aCategory,
+                                                                    aKey );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+    
+// ---------------------------------------------------------------------------
+// ~CPSPropertyObserver()
+// ---------------------------------------------------------------------------
+//
+CPSPropertyObserver::~CPSPropertyObserver()
+    {
+    if( IsAdded() )
+        {
+        Deque();
+        }
+    iProperty.Close();
+    }
+    
+// ---------------------------------------------------------------------------
+// void Release()
+// ---------------------------------------------------------------------------
+//
+void CPSPropertyObserver::Release()
+    {
+    delete this;
+    }
+    
+// ---------------------------------------------------------------------------
+// void RunL()
+// ---------------------------------------------------------------------------
+//
+void CPSPropertyObserver::RunL()
+    {
+    // resubscribe before processing new value to prevent missing updates.
+    iProperty.Subscribe( iStatus );
+    SetActive();
+
+    // property updated, get new value.
+    TInt propval;
+    if ( iProperty.Get( iCategory, iKey, propval ) != KErrNotFound )
+        {
+        iCallBack.CallBack();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// void DoCancel()
+// ---------------------------------------------------------------------------
+//
+void CPSPropertyObserver::DoCancel()
+    {
+    iProperty.Cancel();
+    }
+
+// ---------------------------------------------------------------------------
+// TInt Get( TInt& aValue )
+// ---------------------------------------------------------------------------
+//
+TInt CPSPropertyObserver::Get( TInt& aValue )
+    { 
+	TInt error = iProperty.Get( iCategory, iKey, aValue );
+
+    return error;
+    }
+    
+// ---------------------------------------------------------------------------
+// TInt Get( TDes8& aString )
+// ---------------------------------------------------------------------------
+//
+TInt CPSPropertyObserver::Get( TDes8& aString )
+	{ 
+	TInt error = iProperty.Get( iCategory, iKey, aString );
+    return error;
+    }
+
+// ---------------------------------------------------------------------------
+// TInt Get( TDes16& aString )
+// ---------------------------------------------------------------------------
+//
+TInt CPSPropertyObserver::Get( TDes16& aString )
+    { 
+	TInt error = iProperty.Get( iCategory, iKey, aString );
+    return error;
+    }
+
+// ========== OTHER EXPORTED FUNCTIONS ========================================
+
+// End of File.