/*

* Copyright (c) 2007-2009 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:

* Name          : sipalrobserver.h

* Part of       : SIP / SIP Profile Agent / SIP ALR Monitor

* Version       : SIP/6.0 

*

*/

#ifndef MSIPALROBSERVER_H

#define MSIPALROBSERVER_H

// INCLUDES

#include <e32std.h>

// CONSTANTS

const TUint32 KNoIap = 0;

// CLASS DECLARATION

/**

* Callback to receive notifications about IAP availabilities.

*/

class MSipAlrObserver

	{

	public:

        /** ALR events */

        enum TEvent

            {

             /** 

            * A new IAP became available.

            * When receiving this event the client must call 

            * CSipAlrMonitor::AllowMigration or 

            * CSipAlrMonitor::DisallowMigration.

            */           

            EIapAvailable = 0,

            /** 

            * A new IAP that became available is now active 

            * and the client can start migrating to it.

            */

            EIapActive = 1,

            /**

            * No new IAP available in the used SNAP.

            */

            ENoNewIapAvailable = 2 ,

			/**

            * Refreshing IAPs failed

            */

            ERefreshError = 3,

			/**

            * The user has rejected offerred IAP

            */

            EOfferedIapRejected = 4

            };

        /**

        * ALR related event occurred.

        * @param aEvent the event that occurred

        * @param aSnapId the SNAP related to the event

        * @param aIapId the IAP related to the event

        */

        virtual void AlrEvent( TEvent aEvent,

                               TUint32 aSnapId,

                               TUint32 aIapId ) = 0;

	};

#endif // MSIPALROBSERVER_H