// 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 CMTPIMAGEDPMDEOBSERVER_H

#define CMTPIMAGEDPMDEOBSERVER_H

#include <e32cmn.h>

#include <e32base.h>

#include <e32def.h>

#include <comms-infras/commsdebugutility.h>

#include "rmediasyncserver.h"

#include "cmtpimagedpobjectpropertymgr.h"

class MMTPDataProviderFramework;

class CMTPImageDataProvider;

/** 

Implements the observer interfaces of MDE.

@internalComponent

*/

class CMTPImageDpMdeObserver : public CBase, 

                               public MMdEObjectObserver

    {

public:

    static CMTPImageDpMdeObserver* NewL(MMTPDataProviderFramework& aFramework, CMTPImageDataProvider& aDataProvider);

    ~CMTPImageDpMdeObserver();

public:

    // From MMdEObjectObserver

    void HandleObjectNotification(CMdESession& aSession,

                                 TObserverNotificationType aType,

                                 const RArray<TItemId>& aObjectIdArray);

    void SubscribeForChangeNotificationL();

    void UnsubscribeForChangeNotificationL();

private:

    CMTPImageDpMdeObserver(MMTPDataProviderFramework& aFramework, CMTPImageDataProvider& aDataProvider);

    void ConstructL();   

private:    

    void HandleObjectNotificationL(CMdESession& aSession,

                                   TObserverNotificationType aType,

                                   const RArray<TItemId>& aObjectIdArray);

    void ProcessMdeNotificationL(const RArray<TItemId>& aObjectIdArray, TObserverNotificationType aType);     

    void CreateMetadataL(const CMdEObject& aMdeObject, CMTPObjectMetaData& aMetaData); 

private:

    /**

    FLOGGER debug trace member variable.

    */

    __FLOG_DECLARATION_MEMBER_MUTABLE;

    MMTPDataProviderFramework&    iFramework;    

    CMTPImageDataProvider&        iDataProvider;

    TBool                         iSubscribed;

    TInt                          iNewPics;

    };

#endif // CMTPIMAGEDPMDEOBSERVER_H