/*

* Copyright (c) 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:    

*

*/

#ifndef M_MICENATPLUGINEVENTOBS_H

#define M_MICENATPLUGINEVENTOBS_H

#include <e32base.h>

class CNATFWPluginApi;

/**

 *  Observer interface for clients interested to receive NAT plugin events.

 *

 *  @lib icecandidatehandler.dll

 *  @since S60 v3.2

 */

class MIceNatPluginEventObs

    {

public:

    /**  NAT plugin events */

    enum TNatPluginEvent

        {

        EFirstPluginEventInd    = 0,

        EServerConnected        = 0,

        ELocalCandidateFound    = 1,

        EFetchingCompleted      = 2,

        ETcpConnSetupCompleted  = 3,

        EReceivingActivated     = 4,

        EReceivingDeactivated   = 5,

        ESendingActivated       = 6,

        ESendingDeactivated     = 7,

        ECandidatePairFound     = 8,

        EConnChecksCompleted    = 9,

        EGeneralError           = 10,

        ELastPluginEventInd     = 10

        };

    /**

     * Notifies about plugin event.

     *  

     * @since   S60 v3.2

     * @param   aPlugin         The plugin raising the event

     * @param   aStreamId       The stream identifier

     * @param   aEventCode      The code specifying event

     * @param   aErrorCode      The error code associated with the event

     * @param   aEventData      Optional event data

     */

    virtual void PluginEventOccured( const CNATFWPluginApi* aPlugin,

        TUint aStreamId, TNatPluginEvent aEventCode, TInt aErrorCode, 

        TAny* aEventData, TUint aStreamConnectionId = 0,

        TUint aComponentId = 0, TBool aIPv6After = EFalse ) = 0;

    };

#endif // M_MICENATPLUGINEVENTOBS_H