/*

* Copyright (c) 2003 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:  

*

*/

#ifndef SAEPUBSUBNOTIFIER_H

#define SAEPUBSUBNOTIFIER_H

//  INCLUDES

#include <e32base.h>

#include <e32property.h>

#include <DosSvrServices.h>

#include "PSVariables.h"

// CLASS DECLARATION

class CSaeEtelObserver;

class CSaeSignalStrengthObserver;

/**

*  This class creates the observers and notifies about state changes to Publish and Subscribe.

*/

NONSHARABLE_CLASS( CSaePubSubNotifier ) : public CBase

    {

    public: // Constructors and destructor

        /**

        * C++ default constructor.

        */

        CSaePubSubNotifier();

        /**

        * Two-phased constructor.

        */

        static CSaePubSubNotifier* NewL();

        /**

        * Destructor.

        */

        virtual ~CSaePubSubNotifier();

        /**

        * Through this method the Publish and Subscribe is notified about the state changes.

        * @param aVariable  The variable uid of the variable to change. 

        * @param aState     The new state of the variable

		* @return Return value of the call to RProperty::Set()

        */

        TInt NotifyPubSub( const TUid aVariable, const TInt aState );

    private:

        /**

        * By default EPOC constructor is private.

        */

        void ConstructL();

        // By default, prohibit copy constructor

        CSaePubSubNotifier( const CSaePubSubNotifier& );

        // Prohibit assigment operator

        CSaePubSubNotifier& operator= ( const CSaePubSubNotifier& );

		// Define Publish and Subscribe properties

		void DefineProperties();

    private:  // Data

        // Etel observer.

        CSaeEtelObserver* iEtelObserver;

		// Network signal strength observer

		CSaeSignalStrengthObserver* iSignalObserver;

		// This variable indicates whether the calls forwarding information is

		// initialised.

        TBool iCfStatusInitialised;

		//Publish and Subscribe properties

		RProperty iSAProperty;

    };

#endif      // SAEPUBSUBNOTIFIER_H   

// End of File