--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/taskswitcher/contextengine/hgctxutils/inc/hgcenreplistener.h	Mon Jan 18 20:10:36 2010 +0200
@@ -0,0 +1,85 @@
+/*
+* ===========================================================================
+*  Name        : HgCenrepListener.h
+*  Part of     : Hg
+*  Description : Class to get notifications about changes to a cenrep key
+*
+*  Copyright © 2008 Nokia Corporation.
+*  This material, including documentation and any related 
+*  computer programs, is protected by copyright controlled by 
+*  Nokia Corporation. All rights are reserved. Copying, 
+*  including reproducing, storing, adapting or translating, any 
+*  or all of this material requires the prior written consent of 
+*  Nokia Corporation. This material also contains confidential 
+*  information which may not be disclosed to others without the 
+*  prior written consent of Nokia Corporation.
+* ===========================================================================
+*/
+
+#ifndef __CENREPLISTENER_H__
+#define __CENREPLISTENER_H__
+
+#include <e32base.h>
+
+class CRepository;
+
+/**
+ * Observer interface for getting notifications about a cenrep key change.
+ */
+class MHgCenrepChangeObserver
+    {
+public:
+    virtual void CenrepChanged( TUint32 aKey, TInt aNewValue ) = 0;
+    };
+
+/**
+ * Class to get notifications about changes to a cenrep key.
+ */
+NONSHARABLE_CLASS( CHgCenrepListener ) : public CActive
+    {
+public:
+    /**
+     * Fist step constructor
+     */
+    IMPORT_C static CHgCenrepListener* NewL(const TUid& aRep, TUint32 aKey,
+                                            MHgCenrepChangeObserver& aObserver);
+    
+    /**
+     * Fist step constructor
+     */
+    IMPORT_C static CHgCenrepListener* NewLC(const TUid& aRep, TUint32 aKey,
+                                             MHgCenrepChangeObserver& aObserver);
+    
+    /**
+     * Destructor.
+     */
+    IMPORT_C ~CHgCenrepListener();
+    
+    /**
+     * Returns the current value of the watched key.
+     */
+    IMPORT_C TInt Value();
+    
+private:
+    /**
+     * Constructor.
+     * Starts listening for the key.
+     */
+    CHgCenrepListener(TUint32 aKey,
+        MHgCenrepChangeObserver& aObserver );
+    
+    /**
+     * Second step constructor 
+     */
+    void ConstructL(const TUid& aRep);
+    
+    void DoCancel();
+    void RunL(); 
+    TInt RunError( TInt aError );
+    
+    MHgCenrepChangeObserver& iObserver;
+    CRepository* iRep;
+    TUint32 iKey;
+    };
+    
+#endif