/*

* 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:    SIMPLE Engine watcher callback observer

*

*/

#ifndef M_simplewatcherobserver_H

#define M_simplewatcherobserver_H

#include <e32std.h>

// FORWARD DECLARATION

class MSimpleConnection;

class MSimplePresenceList;

class MSimpleDocument;

/**

 *  MSimpleWatcher

 *

 *  SIMPLE Engine watcher callback observer

 *

 *  @lib simpleengine

 *  @since S60 3.2

 */

class MSimpleWatcherObserver

    {

public:

    /**

     * Watcher request completion.

     *

     * @since S60 3.2

     * @param aOpId operation id

     * @param aStatus completion status. 

     */

    virtual void WatcherReqCompleteL( TInt aOpId, TInt aStatus ) = 0;

    /**

     * Watcher notification callback.

     *

     * @since S60 3.2

     * @param aDocument presence entity data

     */

    virtual void WatcherNotificationL( MSimpleDocument& aDocument ) = 0;

    /**

     * Watcher presence list notification callback.

     *

     * @since S60 3.2

     * @param aList presence list

     */

    virtual void WatcherListNotificationL( MSimplePresenceList& aList ) = 0;

    /**

     * Watcher request terminated

     *

     * @since S60 3.2

     * @param aOpId operation id

     * @param aReason termination reason. Refer to simpleerrors.h

     */

    virtual void WatcherTerminatedL(

        TInt aOpId, TInt aReason ) = 0;

    };

#endif

// End of File