--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysstatemgmt/ssmcustcmds/ssmsystemcmds/inc/ssmpskeyobserver.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,110 @@
+/*
+* Copyright (c) 2009 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:
+* Declaration of CSsmPsKeyObserver class.
+*
+*/
+
+#ifndef SSMPSKEYOBSERVER_H
+#define SSMPSKEYOBSERVER_H
+
+#include <e32base.h>
+#include <e32property.h>
+
+/**
+*  An active object which waits until a P&S key value changes to a predefined
+*  value and then signals a request status.
+*/
+NONSHARABLE_CLASS( CSsmPsKeyObserver ) : public CActive
+    {
+
+public:
+
+    /**
+    * First phase constructor.
+    *
+    * @param aCategory The UID that identifies the property category.
+    * @param aKey The property sub-key, i.e. the key that identifies the
+    *             specific property within the category.
+    */
+    CSsmPsKeyObserver( TUid aCategory, TUint aKey );
+
+    /**
+    * Destructor.
+    */
+    virtual ~CSsmPsKeyObserver();
+
+    /**
+    * Start observing the key value.
+    *
+    * @param aStatus Request status to be completed when the property reaches
+    *        the target value.
+    */
+    void StartObserving( TRequestStatus& aStatus );
+
+private:
+
+    /**
+    * From CActive.
+    * Implements cancellation of an outstanding request.
+    */
+    virtual void DoCancel();
+
+    /**
+    * From CActive.
+    * Handles an active object’s request completion event.
+    */
+    virtual void RunL();
+
+protected:
+
+    virtual TBool IsMatch( const TInt aKeyValue ) const = 0;
+
+private:
+
+    /**
+    * Check the key value fron P&S and subscribe to listen to changes
+    * in the P&S key if the value is not the same as the target value.
+    */
+    void CheckKeyValue();
+
+    /**
+    * Complete client request with the given error code.
+    *
+    * @param aErrorCode The error code to complete the request with.
+    */
+    void Complete( const TInt aErrorCode );
+
+private: // data
+
+    /** P&S variable to listen to. */
+    RProperty iProperty;
+
+    /** The UID that identifies the property category. */
+    TUid iCategory;
+
+    /**
+    * The property sub-key, i.e. the key that identifies the specific property
+    * within the category.
+    */
+    TUint iKey;
+
+    /**
+    * Request status to be completed when the property reaches the target value.
+    */
+    TRequestStatus* iClientStatus;
+
+    };
+
+#endif // SSMPSKEYOBSERVER_H