/*

* Copyright (c) 2008 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 C_ATEXTCOMMONOBSERVER_H

#define C_ATEXTCOMMONOBSERVER_H

#include <ecom/ecom.h>

class CATExtCommonBase;

/**

 *  The interface for AT Extension Plugin to interact with plugins.

 *

 *  @since S60 v5.0

 */

class MATExtCommonObserver

    {

public:

    /**

     * Called by concrete extension Plugin to inform that mode status has

     * changed.

     *

     * @since S60 5.0

     * @param aMode New mode

     * @return Symbian error code on error, KErrNone otherwise

     */

    virtual TInt SendModeStatusChange( TUint aMode ) = 0;

    /**

     * Called by concrete extension plugin to inform that NVRAM status has

     * changed.

     *

     * @since S60 5.0

     * @param aNvram New NVRAM status. The new settings (delimited by "|")

     *               must differ from the Hayes defaults.

     * @return Symbian error code on error, KErrNone otherwise

     */

    virtual TInt SendNvramStatusChange( const TDesC8& aNvram ) = 0;

    /**

     * Called by the destructor of CATExtPluginBase.

     * A concrete service provider implementation should not touch this.

     *

     * @param aPlugin Plugin that was closed

     * @return Symbian error code on error, KErrNone otherwise

     */

    virtual TInt ATExtPluginClosed( CATExtCommonBase* aPlugin ) = 0;

    };

#endif  // C_ATEXTCOMMONOBSERVER_H