/*

* 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:  Message store observer handler.

*

*/

#ifndef MSGSTOREOBSERVERHANDLER_H_

#define MSGSTOREOBSERVERHANDLER_H_

#include <e32base.h>

//<cmail>

//</cmail>

#include "MessageStoreClientServer.h"

const TUint KEventBufferLength  = 30;

// ===============================

// CLASS: CMsgStoreObserverHandler

// ===============================

class CMsgStoreObserverHandler : private CActive

	{

	public:

	    // ==============

	    // PUBLIC METHODS

	    // ==============

		static CMsgStoreObserverHandler* NewL( RMessageStoreSession& aSession );

		virtual ~CMsgStoreObserverHandler();

		void AddObserverL( MMsgStoreObserver* aObserver );

		void RemoveObserverL( MMsgStoreObserver* aObserver );

		void AddObserverL( MMsgStoreMailBoxObserver* aOBserver, TMsgStoreId aMailBoxId );

		void RemoveObserverL( MMsgStoreMailBoxObserver* aObserver, TMsgStoreId aMailBoxId );

	private:

		struct TMailBoxObserverInfo

			{

			TMsgStoreId               iMailBoxId;

			MMsgStoreMailBoxObserver* iObserver;

			};

	    // ===============

	    // PRIVATE METHODS

	    // ===============	    

		CMsgStoreObserverHandler( RMessageStoreSession& aSession );

		void ModificationNotify( const TMsgStoreEvent& aEvent );

		void SystemEventNotify( const TMsgStoreEvent& aEvent );

		void AccountEventNotify( const TMsgStoreEvent& aEvent );

		// inherited from CActive

		void RunL();

		void DoCancel();

		TInt RunError( TInt aError );

	    // ==================

	    // PRIVATE ATTRIBUTES

	    // ==================

		RMessageStoreSession&                            iSession;

		RArray<MMsgStoreObserver*>                       iObservers;

		RArray<TMailBoxObserverInfo>                     iMailBoxObservers;

		TBuf8<sizeof(TMsgStoreEvent)*KEventBufferLength> iEventBuffer;

		__LOG_DECLARATION

	}; // end class CMsgStoreObserverHandler

#endif /*MSGSTOREOBSERVERHANDLER_H_*/