/*

* Copyright (c) 2002-2005 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 and Subscribe implementation of notify services

*

*/

#ifndef CCANOTIFIERIMPL_H

#define CCANOTIFIERIMPL_H

//  INCLUDES

#include "MCANotifierInterface.h"

#include "MCAPropertyNotificationObserver.h"

// FORWARD DECLARATIONS

class MCANotifierKeyObserver;

class CCAPropertyObserver;

// CLASS DECLARATION

/**

*  Class for notifying key changes, reading and changing the values of

*  Pub&Sub keys.

*

*  @since Series 60 Platform 3.0

*/

class CCANotifierImpl : public CBase,

            public MCANotifierInterface,

            public MCAPropertyNotificationObserver

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CCANotifierImpl* NewL( MCANotifierKeyObserver* aObserver,

                                      const TUid aUid );

        /**

        * Destructor.

        */

        virtual ~CCANotifierImpl();

    public: // Functions from base classes

        TInt SetInt( TNotifyKey aKey, TInt aValue );

        TInt GetInt( TNotifyKey aKey, TInt& aValue );

        TInt ListenKeyChanges( TNotifyKey aKey );

    private: // From MCAPropertyNotificationObserver

        /**

        * @see MCAPropertyNotificationObserver

        */

        void HandlePropertyNotificationEventL( TUid aCategory, TUint aKey );

    private:

        /**

        * C++ default constructor.

        */

        CCANotifierImpl( MCANotifierKeyObserver* aObserver, const TUid aUid );

    private:    // Data

        MCANotifierKeyObserver* iObserver;

        TUid iCatUID;

        CCAPropertyObserver* iPropWatcher;

    };

#endif      // CCANOTIFIERIMPL_H 

// End of File