--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/IMPSServiceSettingsUI/SharedDataSrc/CIMPSSystemNotifierPubSub.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,104 @@
+/*
+* Copyright (c) 2004 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 & Subscribe system keys change observer
+*
+*/
+
+
+
+#ifndef CIMPSSYSTEMNOTFIER_H
+#define CIMPSSYSTEMNOTFIERSYSTEMAGENT_H
+
+//  INCLUDES
+
+#include "MIMPSSystemNotifier.h"
+#include "MIMPSPropertyNotificationObserver.h"
+
+// FORWARD DECLARATIONS
+class MIMPSSystemNotifierObserver;
+class CIMPSPropertyObserver;
+
+// CLASS DECLARATION
+
+/**
+*  Implementation of the Publish & Subscribe system keys change observer
+*
+*  @since 2.6
+*/
+NONSHARABLE_CLASS( CIMPSSystemNotifierPubSub ) : public MIMPSSystemNotifier,
+        public MIMPSPropertyNotificationObserver
+    {
+public:  // Constructors and destructor
+
+    /**
+    * Two-phased constructor.
+    * @param aObserver Observer to be informed when observed system key changes
+    */
+    static CIMPSSystemNotifierPubSub* NewL( MIMPSSystemNotifierObserver& aObserver,
+    const TUid aKey );
+
+    /**
+    * Destructor.
+    */
+    virtual ~CIMPSSystemNotifierPubSub();
+
+protected:     // from MIMPSSystemNotifier
+
+    /**
+    * @see MIMPSSystemNotifier
+    */
+    TInt Subscribe();
+
+    /**
+    * @see MIMPSSystemNotifier
+    */
+    void UnSubscribe();
+
+    /**
+    * @see MIMPSSystemNotifier
+    */
+    TInt GetIntKey( TInt& aValue );
+
+protected:  // from MIMPSPropertyNotificationObserver.h
+
+    void HandlePropertyNotificationEventL( TUid aCategory, TUint aKey );
+
+private:
+
+    /**
+    * C++ default constructor.
+    */
+    CIMPSSystemNotifierPubSub( MIMPSSystemNotifierObserver& aObserver,
+                               const TUid aKey );
+
+    /**
+    * Symbian 2nd phase constructor..
+    */
+    void ConstructL();
+
+private:    // Data
+    // Observers property sets, owned
+    CIMPSPropertyObserver* iPropertyObserver;
+
+    // Observer to be informed when value of system key changes
+    MIMPSSystemNotifierObserver& iObserver;
+
+    // the key this observer is attached
+    TUid iKey;
+
+    };
+
+#endif      // CIMPSSYSTEMNOTFIERSYSTEMAGENT_H
+
+// End of File