--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/satengine/SatServer/SystemState/inc/CSatPSChangeNotifier.h	Tue Feb 02 01:11:09 2010 +0200
@@ -0,0 +1,137 @@
+/*
+* Copyright (c) 2002-2006 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:  Notifies the changes in publish and suscripe properties.
+*
+*/
+
+
+
+#ifndef CSATPSCHANGENOTIFIER_H
+#define CSATPSCHANGENOTIFIER_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <e32property.h>
+#include "MSatSystemStateChangeNotifier.h"
+
+// FORWARD DECLARATION
+class MSatSystemStateObserver;
+
+// CLASS DECLARATION
+
+/**
+*  Notifies the changes in publish and suscripe properties.
+*
+*  @lib SatSystemState
+*  @since Series 60 3.0
+*/
+class CSatPSChangeNotifier : public CActive,
+                             public MSatSystemStateChangeNotifier
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * Two-phased constructor.
+        * @param aPropertyKey This is the P&S key.
+        * @param aPropertyValue Value of the P&S key.
+        * @param aObserver A class that is notified when value changes.
+        * @param aNotifyValue Defines the value that causes the notification.
+        */
+        static CSatPSChangeNotifier* NewL(
+            const TUid& aPropertyKey,
+            TUint aPropertyValue,
+            MSatSystemStateObserver& aObserver,
+            TInt aNotifyValue = -1 );
+
+        /**
+        * Destructor.
+        */
+        virtual ~CSatPSChangeNotifier();
+
+    public: // Functions from base classes
+
+        /**
+        * From MSatSystemStateChangeNotifier Request a notification of a
+        * change in system state.
+        */
+        void NotifyChangeL();
+
+        /**
+        * From MSatSystemStateChangeNotifier Cancels the notification request.
+        */
+        void CancelNotify();
+               
+        /**
+        * From MSatSystemStateChangeNotifier Gets the current value.
+        * @return Current value for earlier request.
+        */
+        TInt GetValueInt();
+
+    protected:  // Functions from base classes
+
+        /**
+        * From CActive
+        */
+        void DoCancel();
+
+        /**
+        * From CActive.
+        */
+        void RunL();
+
+    private: // New methods
+
+        /**
+        * Makes the request and activates the active object.
+        */
+        void Activate();
+
+    private:
+
+        /**
+        * C++ default constructor.
+        * @param aPropertyKey This is the P&S key.
+        * @param aPropertyValue Value of the P&S key.
+        * @param aObserver A class that is notified when value changes.
+        * @param aNotifyValue Defines the value that causes the notification.
+        */
+        CSatPSChangeNotifier(
+            const TUid& aPropertyKey,
+            TUint aPropertyValue,
+            MSatSystemStateObserver& aObserver,
+            TInt aNotifyValue );
+
+    private:    // Data
+
+        // Change observer.
+        MSatSystemStateObserver& iObserver;
+
+        // Publish & suscripe handle.
+        RProperty iPSClient;
+
+        // Publish&Suscripe property key
+        TUid iPSKey;
+
+        // Publish&Suscripe property value
+        TUint iPSValue;
+
+        // Value of the property when observer should be notified
+        // If this is not set, the changed value is sent to observer
+        TInt iNotifyValue;
+
+    };
+
+#endif      // CSATPSCHANGENOTIFIER_H
+
+// End of File