diff -r c743ef5928ba -r f966699dea19 idlehomescreen/xmluicontroller/inc/cenrepobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluicontroller/inc/cenrepobserver.h	Fri Feb 19 22:42:37 2010 +0200
@@ -0,0 +1,98 @@
+/*
+* Copyright (c) 2010 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:  Listens for changes in a Central Repository key.
+*
+*/
+
+#ifndef CENREPOBSERVER_H
+#define CENREPOBSERVER_H
+
+// FORWARD DECLARATIONS
+class CRepository;
+class MCenRepObserver;
+
+// Stop requesting new notifications after this many consecutive errors
+const TInt KCenRepErrorRetryCount = 80;
+
+namespace AiXmlUiController
+{
+
+/**
+* MCenRepObserver
+*
+* Client application must implement the CenRepObserver interface in
+* order to receive a notification when Central Repository key 
+* KCRUidCmManager/ KCurrentCellularDataUsage changes.
+*
+*/
+class MCenRepObserver
+    {
+public:
+    /**
+    * This method is called every time when Central Repository key 
+    * KCRUidCmManager/ KCurrentCellularDataUsage changes.
+    *
+    * @param aValue The new value for KCurrentCellularDataUsage.
+    * 
+    */
+    virtual void CurrentCellularDataUsageChangedL( const TInt aValue ) = 0;
+    };
+
+/**
+* CCenRepObserver
+*
+*/
+NONSHARABLE_CLASS( CCenRepObserver ) : public CActive
+    {
+public: // Constructors and destructor
+    static CCenRepObserver* NewL( MCenRepObserver* aObserver );
+
+    static CCenRepObserver* NewLC( MCenRepObserver* aObserver );
+
+    virtual ~CCenRepObserver();
+
+private:
+    CCenRepObserver( MCenRepObserver* aObserver );
+
+    void ConstructL();
+    
+    /**
+    * Request notification for network setting change
+    */
+    void RequestNotifications();
+ 
+private: // Methods from base class
+    void DoCancel();
+    void RunL();
+
+private:
+    /**
+    * Cenrep Observer. Not own
+    */
+    MCenRepObserver*   iObserver;
+    
+    /**
+    * Cenrep repository. Own
+    */
+    CRepository*       iRepository;
+    
+    /**
+    * Cenrep read error count.
+    */
+    TInt               iErrorCounter;
+    };
+}// namespace AiXmlUiController
+#endif // AOCENREPOBSERVER_H
+
+// End-of-file