/*

* Copyright (c) 2006-2009 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:  

*

*/

#ifndef __MESSAGEMONITORPLUGIN_H__

#define __MESSAGEMONITORPLUGIN_H__

//  INCLUDES 

#include <e32base.h>

#include <msvapi.h>

#include <monitorplugin.h>

#include "messagescannerao.h"

class CMessageMonitorPlugin : public CMonitorPlugin, public MMsvSessionObserver

  	{

	public:

		/**

		* NewL

		* @return

		*/

		static CMessageMonitorPlugin* NewL();

		/**

		* Destructor

		*/

		virtual ~CMessageMonitorPlugin();

		/**

		* From CMonitorPlugin

		*/

		TBool StartMonitoring( MMonitorPluginObserver& aObserver, 

                               CMdESession* aMdEClient, 

                               CContextEngine* aCtxEngine,

                               CHarvesterPluginFactory* aHarvesterPluginFactory );

		/**

		* From CMonitorPlugin

		*/

		TBool StopMonitoring();

		/**

		* From CMonitorPlugin

		*/		

		TBool ResumeMonitoring( MMonitorPluginObserver& aObserver, 

				                CMdESession* aMdEClient, 

								CContextEngine* aCtxEngine,

								CHarvesterPluginFactory* aHarvesterPluginFactory );

		/**

		* From CMonitorPlugin

		*/		

		TBool PauseMonitoring();

		/**

		* From MMsvSessionObserver

		*/

		virtual void HandleSessionEventL( TMsvSessionEvent aEvent, 

										  TAny* aArg1, 

										  TAny* aArg2, 

										  TAny* aArg3 );

		/**

		* Creates a URI for a message.

		*/

		static HBufC* CreateUriL( const TUid& aMsgTypeUid, const TMsvId aMsgId );

		/**

		 * Method CreateFileNameL.

		 * Creates file name in variable iFileName.

		 */

		void CreateFileNameL(); 

	private:

		/**

		* From Constructor

		*/

		CMessageMonitorPlugin();

		/**

		* 2nd phase construction

		*/

		void ConstructL();

		void HandleMsgMovedL( const TMsvId aFolderId1, 

							  const TMsvId aFolderId2, 

							  const CMsvEntrySelection& aSelection );

		void HandleMsgCreatedChangedL( const CMsvEntrySelection& aSelection,

                                       const TMsvId aFolderId,

                                       const TMsvSessionEvent aEvent );

		void HandleMsgDeletedL( const CMsvEntrySelection& aSelection );

		void RemoveObjectL( const TDesC& aUri );

		TBool IsValidMessageTypeL( const TMsvEntry& aEntry, CMsvSession& aSession );

		/**

		 * This method checks if the CRestoreWatcher has created a file in harvester server's

		 * private directory as a sign of restore and starts message scanner if it finds the file.

		 */

		void CheckRestoreL();

	private:

		MMonitorPluginObserver* iMonitorPluginObserver;

		CMsvSession* iMsvSession;			// Session Message server session, own

		CMdESession* iMdeSession;

		CMessageScannerAO* iMessageScannerAO;

		/*iFileName - File used for restore flag.*/

		TFileName iFileName;

	};

#endif // __MESSAGEMONITORPLUGIN_H__