diff -r 000000000000 -r 164170e6151a securitydialogs/lockapp/inc/lockapppubsubobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/securitydialogs/lockapp/inc/lockapppubsubobserver.h	Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,129 @@
+/*
+* Copyright (c) 2007 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 key observer
+ *
+*/
+
+
+#ifndef __LOCKAPPPUBSUBOBSERVER_H__
+#define __LOCKAPPPUBSUBOBSERVER_H__
+
+// INCLUDES
+#include <w32std.h>
+#include <e32svr.h>
+#include <e32property.h>
+#include "lockappobserverinterface.h"
+
+/**
+ *  CLockAppPubSubObserver class implements a Publish & Subscribe key observer.
+ *  It can be used to monitor and also to set a PubSub key.
+ *
+ *  @lib    lockapp
+ *  @since  5.0
+ *  @author Tamas Koteles
+ */
+class CLockAppPubSubObserver : public CActive
+	{
+	public:
+
+		/**
+		 * Two-phased constructor.
+		 *
+		 * @param aObserver   pointer to observer
+		 * @param aPubSubUid  publish & subscribe Uid
+		 * @param aKeyId      publish & subscribe key id
+		 * @return            the instance just created.
+		 */
+		static CLockAppPubSubObserver* NewL( MLockAppObserverInterface* aObserver, TUid aPubSubUid,
+				TUint32 aKeyId );
+
+		/**
+		 * Destructor.
+		 */
+		~CLockAppPubSubObserver( );
+
+		/**
+		 * Start obsering PubSub key
+		 */
+		TInt Start( );
+
+		/**
+		 * Stop observing PubSub key
+		 */
+		void Stop( );
+
+		/**
+		 * Get key value from P&S.
+		 */
+		TInt GetKeyValue( TInt& aValue );
+
+		/**
+		 * Set key value to P&S.
+		 */
+		TInt SetKeyValue( TInt aValue );
+
+	protected:
+
+		/**
+		 * C++ default constructor.
+		 *
+		 * @param aObserver observer
+		 * @param aPubSubUid publish & subscribe Uid
+		 * @param aKeyId key id
+		 */
+		CLockAppPubSubObserver( MLockAppObserverInterface* aObserver, TUid aPubSubUid,
+				TUint32 aKeyId );
+
+		/**
+		 * Symbian OS constructor.
+		 */
+		void ConstructL( );
+
+	private:
+
+		void RunL( );
+
+		void DoCancel( );
+
+	protected:
+
+		/**
+		 * Observer's callback interface. Not owned.
+		 */
+		MLockAppObserverInterface* iObserver;
+
+		/**
+		 * Access to Publish & Subscribe.
+		 */
+		RProperty iProperty;
+
+		/**
+		 * Publish & Subscribe Uid.
+		 */
+		TUid iPubSubUid;
+
+		/**
+		 * Publish & Subscribe key Id.
+		 */
+		TUint32 iKeyId;
+
+		/**
+		 * Publish & Subscribe key's value.
+		 */
+		TInt iValue;
+
+	};
+
+#endif // __LOCKAPPPUBSUBOBSERVER_H__
+// END OF FILE