/*

* Copyright (c) 2010 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 : P&S key monitor for communication between VPN client

*               and SIP Profile server

* Name        : vpnsipobserver.h

* Part of     : VPN client / VPN Connection Agent

* Version     : 1.0

*

*/

#ifndef VPNSIPOBSERVER_H

#define VPNSIPOBSERVER_H

#include <e32base.h>

#include "vpnconnagt.h"                   // Reference to CVPNConnAgt is needed for call back

class CVPNConnAgt;

NONSHARABLE_CLASS( CVpnSipObserver ): public CActive

    {      

public: // Constructor & destructor

    /**

     * Two-phased constructor

     */

    static CVpnSipObserver* NewL( CVPNConnAgt& aAgent );

    /**

     * Destructor

     */

    virtual ~CVpnSipObserver();

public: // New methods

    /**

     * Closes the sip connections

     * @return ETrue if connections are succesfully closed

     */

    TInt RequestDeregister();

    /**

     * Re-opens connection in case vpn session ends

     */

    TInt RequestRegister();

private: // From CActive

    /**

     * From CActive

     */

    void RunL();

    /**

     * From CActive

     */

    void DoCancel();

private: // New methods

    /**

     * Subscribes to the property

     */

    void Subscribe();

    /**

     * 2nd phase constructor

     */

    void ConstructL();

    /**

     * C++ constructor

     */

    CVpnSipObserver( CVPNConnAgt& aAgent );

private: // Data

    /**

     * Own: P&S for communication between SIP Profile Server and VPN client

     */

    RProperty iSIPProperty;

    /**

     * Own: Owner of this observer

     */

    CVPNConnAgt& iAgent;

    };

#endif    // VPNSIPOBSERVER_H