/*

* 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:  ESMR CAS plug-in contact retriever observer

*

*/

#ifndef MESMRCASPLUGINCONTACTRETRIEVEROBSERVER_H

#define MESMRCASPLUGINCONTACTRETRIEVEROBSERVER_H

class CCalUser;

/**

 * MESMRCasPluginContactRetrieverObserver defines observer

 * interface for contact retriever operations.

 */

class MESMRCasPluginContactRetrieverObserver

    {

public: // Destruction

    virtual ~MESMRCasPluginContactRetrieverObserver() {}

public: // Interface

    /**

     * Called to notify that MR contact count fetching is complete.

     * @param aCanExecute ETrue if at least 1 contact with email was found.

     */

    virtual void MRCanExecuteComplete( TBool aCanExecute ) = 0;

    /**

     * Notify observer about error.

     * @param aError Error code.

     */

    virtual void MRCanExecuteError(

            TInt aError ) = 0;

    /**

     * Called to notify that MR contact fetching is complete.

     * @param aContactCount Total number of contacts.

     * @param aContacts Array of fecthed MR attendees.

     */

    virtual void MRGetAttendeesComplete(

            TInt aContactCount,

            const RPointerArray<CCalUser>& aAttendees ) = 0;

    /**

     * Notify observer about error.

     * @param aError Error code.

     */

    virtual void MRGetAttendeesError(

            TInt aError ) = 0;

    };

#endif // MESMRCASPLUGINCONTACTRETRIEVEROBSERVER_H

// EOF