/*

* Copyright (c) 2006 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:      main callback interface for AVController client

*

*/

#ifndef M_UPNPAVDEVICEOBSERVER_H

#define M_UPNPAVDEVICEOBSERVER_H

// INCLUDES

// FORWARD DECLARATIONS

class CUpnpAVDevice;

/**

* Defines the response interface for the device control operations of the

* UPnP AV Controller.

*

* @since Series 60 3.1

*/

class MUPnPAVDeviceObserver

    {

public:

    /**

     * Notifies that a new UPnP device was discovered.

     *

     * UPnPAVController releases the memory allocated for aDevice

     * after calling the callback method.

     *

     * @since Series 60 3.1

     * @param aDevice CUpnpDevice object

     * @return None

     */

    virtual void UPnPDeviceDiscovered( const CUpnpAVDevice& aDevice ) = 0;

    /**

     * Notifies that a UPnP device was disappeared.

     *

     * UPnPAVController releases the memory allocated for aDevice

     * after calling the callback method.

     *

     * @since Series 60 3.1

     * @param aDevice CUpnpDevice object

     * @return None

     */

    virtual void UPnPDeviceDisappeared( const CUpnpAVDevice& aDevice ) = 0;

    /**

     * Notifies that the WLAN connection has been lost. All sessions

     * are now unusable and must be closed.

     *

     * @since Series 60 3.1

     * @return None

     */        

    virtual void WLANConnectionLost() = 0;       

    /**

     * Notifies that the device icon download has completed and icon is readable by 

     * MUPnPAVController::GetDeviceIconL().

     *

     * @param aDevice CUpnpDevice object

     */

    virtual void UPnPDeviceIconDownloaded( const CUpnpAVDevice& /*aDevice*/ ) {}

    };

#endif // M_UPNPAVDEVICEOBSERVER_H

// End of File