// Copyright (c) 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:

//

/**

 @file

 @internalTechnology

*/

#ifndef CMEDIASYNCOBSERVER_H

#define CMEDIASYNCOBSERVER_H

#include "cmediasyncserverdef.h"

#include "cmediasyncdatabase.h"

class CMediaSyncDatabase;

class CMediaSyncObserver : public CBase,

                           public MMdESessionObserver,

                           public MMdEObjectObserver,

                           public MMdEObjectPresentObserver

  {

public:

    static CMediaSyncObserver* NewL(CMediaSyncDatabase* aDb);

    virtual ~CMediaSyncObserver();

    void SubscribeForChangeNotificationL();

    void UnsubscribeForChangeNotificationL();

public:

    // From MMdESessionObserver

    void HandleSessionOpened(CMdESession& aSession, TInt aError);

    void HandleSessionError(CMdESession& aSession, TInt aError);

    // From MMdEObjectObserver

    void HandleObjectNotification(CMdESession& aSession,

                                 TObserverNotificationType aType,

                                 const RArray<TItemId>& aObjectIdArray);

    // From MMdEObjectPresentObserver

    void HandleObjectPresentNotification(CMdESession& aSession, 

                                        TBool aPresent, 

                                        const RArray<TItemId>& aObjectIdArray);

private:

    CMediaSyncObserver(CMediaSyncDatabase* aDb);

    void ConstructL();

    void HandleSessionCallback(TInt aError);

    void HandleObjectNotificationL(CMdESession& aSession,

                                   TObserverNotificationType aType,

                                   const RArray<TItemId>& aObjectIdArray);  

    void HandleObjectPresentNotificationL(CMdESession& aSession, 

                                        TBool aPresent, 

                                        const RArray<TItemId>& aObjectIdArray);

private: //not has ownership

    /**

    FLOGGER debug trace member variable.

    */

    __FLOG_DECLARATION_MEMBER_MUTABLE;

    CMdESession*           iSession;    

    CMediaSyncDatabase*    iDb;    

    CActiveSchedulerWait*  iSessionWait;  

    TInt                   iMdeSessionError;

    TBool iSubscribed;  

  };

#endif /*CMEDIASYNCOBSERVER_H*/