diff -r ebe688cedc25 -r 7fdbb852d323 messagingappbase/ncnlist/inc/NcnPublishAndSubscribeObserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingappbase/ncnlist/inc/NcnPublishAndSubscribeObserver.h	Wed Sep 01 12:31:54 2010 +0100
@@ -0,0 +1,117 @@
+/*
+* 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:   Defines class CNcnPublishAndSubscribeObserver.
+*
+*/
+
+
+
+#ifndef NCNPUBLISHANDSUBSCRIBEOBSERVER_H
+#define NCNPUBLISHANDSUBSCRIBEOBSERVER_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <e32property.h>
+#include "NcnSubscribeHandler.h"
+
+// CLASS DECLARATION
+class CNcnModelBase;
+class CNcnSubscriber;
+
+/**
+* Listens to the Phone idle status and other Properties
+* through the Publish and Subscribe session.
+*/
+class CNcnPublishAndSubscribeObserver : public CBase, public MNcnSubscribeHandler
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * C++ default constructor.
+        */
+        CNcnPublishAndSubscribeObserver( CNcnModelBase* aModel );
+
+        /**
+        * Two-phased constructor.
+        */
+        static CNcnPublishAndSubscribeObserver* NewL( CNcnModelBase* aModel );
+
+        /**
+        * Destructor.
+        */
+        virtual ~CNcnPublishAndSubscribeObserver();
+
+    public:
+        
+        /*
+        * Through this Publish and Subscribe is notified about state changes.
+        * @param aCategory Property category.
+        * @param aVariable The Property to be set
+		* @param aState The value to be set for the aVariable Property
+        */
+        void NotifyPublishAndSubscribe( const TUid& aCategory, TUint aVariable, const TInt aState );
+
+	public: //from base classes
+
+		 /**
+        * Through this method the Property subscribers notify of Property changes
+        * @param aCategory The category of the property to be observed
+		* @param aKey The subkey of the property to be observed
+		*/
+        void HandlePropertyChangedL( const TUid& aCategory, TInt aKey );
+
+    private:
+
+        /**
+        * By default Symbian OS constructor is private.
+        */
+        void ConstructL();
+
+        // By default, prohibit copy constructor
+        CNcnPublishAndSubscribeObserver( const CNcnPublishAndSubscribeObserver& );
+        // Prohibit assigment operator
+        CNcnPublishAndSubscribeObserver& operator= ( const CNcnPublishAndSubscribeObserver& );
+
+		 /**
+        *  Determine idle state.
+        * Reads iAutolockStatus, iCurrentCallStatus and iPhoneIdleState and informs 
+        * model about the idle status
+		*/
+        void DetermineIdleState();
+        
+    private:    // Data
+
+        // Property subscribers
+		CNcnSubscriber* iSimChangedSubscriber;
+		CNcnSubscriber* iPhoneIdleSubscriber;
+		CNcnSubscriber* iAutolockSubscriber;
+		CNcnSubscriber* iCurrentCallSubscriber;
+		CNcnSubscriber* iSimUsableSubscriber;
+		
+         // A pointer to the event monitor.
+        CNcnModelBase* iModel;
+
+        // Stores the phone idle state status
+        TInt iPhoneIdleState;
+
+        // Stores the autolock status
+        TInt iAutolockStatus;
+
+        // Stores the current call status
+        TInt iCurrentCallStatus;
+    };
+
+#endif      // NCNPUBLISHANDSUBSCRIBEOBSERVER_H
+
+// End of File