/*

* Copyright (c) 2005-2007 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:  This observer is used by

*                availabilities to observer function from the availability

*

*/

#ifndef MMUSAVAAVAILABILITYOBSERVER

#define MMUSAVAAVAILABILITYOBSERVER

#include <e32def.h>

#include "musavaobserver.h"

/**

 *  MusAvailability Observer base class

 *

 *  Observer interface for ECOM clients.

 *

 *  @lib musavailabilityplugin.lib

 */

class MMusAvaAvailabilityObserver

    {

public:

    /**

     * Availability report

     *

     * @param aStatus New status for availability.

     */

    virtual void AvailabilityChanged(

        MMusAvaObserver::TAvailabilityName aName,

        MMusAvaObserver::TAvailabilityStatus aStatus ) = 0;

    virtual void AvailabilityError(

        MMusAvaObserver::TAvailabilityName aName,

        MMusAvaObserver::TAvailabilityStatus aStatus ) = 0;

    virtual TBool Available( 

        MMusAvaObserver::TAvailabilityName aAvailability ) = 0;

    virtual MMusAvaObserver::TAvailabilityStatus 

    	AvailabilityPluginState() = 0;

    };

#endif //MMUSAVAAVAILABILITYOBSERVER