/*

* 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: This file defines class CIpsPlgSosBasePlugin.

*

*/

#ifndef IPSSTATEEXTENSION_H

#define IPSSTATEEXTENSION_H

#include <cmailboxstateext.h>

#include "ipsplgcommon.h"

class MEmailMailboxState;

class MStateObserverCallback

    {

public:

    virtual void ActiveFolderChanged(

            const TFSMailMsgId& aActiveMailboxId,

            const TFSMailMsgId& aActiveFolderId)=0;

    };

NONSHARABLE_CLASS ( CIpsStateExtension ) :

    public CMailboxStateExtension

    {

public: //from CMailboxStateExtension

    static CIpsStateExtension* NewL(MStateObserverCallback& aCallback);

    /**

     * Sets data provider interface.

     * @param aDataProvider data provider.

     */

    void SetStateDataProvider( MEmailMailboxState* aDataProvider );

    /**

    * Notification that folder has changed in email application.

    * @param aActiveMailboxId id of the mailbox container the folder

    * @param aActiveFolderId currently active folder id or null id if

    *        there's currently no active folder (e.g. application is closed)

    */

    void NotifyActiveFolderChanged(

        const TFSMailMsgId& aActiveMailboxId,

        const TFSMailMsgId& aActiveFolderId);

    virtual ~CIpsStateExtension();

private:

    CIpsStateExtension(MStateObserverCallback& aCallback);

    void ConstructL();

private:

    MEmailMailboxState*         iDataProvider;//not owned    

    MStateObserverCallback&     iCallback;

    };

#endif //IPSSTATEEXTENSION_H