/*

* 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:  Monitors MMC insertions and removals.*

*/

#ifndef __MMCMONITORPLUGIN_H__

#define __MMCMONITORPLUGIN_H__

#include <e32base.h>

#include "mdeharvestersession.h"

#include "mdeobject.h"

#include "monitorplugin.h"

#include "mmcmounttaskao.h"

#include "mmcusbao.h"

#include "mmcscannerao.h"

class CMMCMonitorPlugin : public CMonitorPlugin, public MMMCMonitorObserver

  	{

	public:

		/**

		* Creates and constructs a new instance of CMMCMonitorPlugin.

		*

		* @return A pointer to the new instance of CMMCMonitorPlugin.

		*/

		static CMMCMonitorPlugin* NewL();

		/**

		* Destructor

		*/

		virtual ~CMMCMonitorPlugin();

		/**

		* 

		*

		* @param aObserver  All events are notified via the aObserver.

		* @param aMdEClient  A pointer to MdE client.

		* @param aCtxEngine  A pointer to context engine.

		* @param aPluginFactory  A pointer to harvester plugin factory.

		* @return ETrue if success, EFalse if not.

		*/

		TBool StartMonitoring( MMonitorPluginObserver& aObserver,

            CMdESession* aMdEClient, CContextEngine* aCtxEngine,

            CHarvesterPluginFactory* aHarvesterPluginFactory );

		/**

		* Stops the monitoring.

		*

		* @return ETrue if success, EFalse if not.

		*/

		TBool StopMonitoring();

		/**

		* Resumes paused monitoring.

		*

		* @param aObserver  All events are notified via the aObserver.

		* @param aMdEClient  A pointer to MdE client.

		* @param aCtxEngine  A pointer to context engine.

		* @param aPluginFactory  A pointer to harvester plugin factory.

		* @return ETrue if success, EFalse if not.

		*/

		TBool ResumeMonitoring( MMonitorPluginObserver& aObserver,

            CMdESession* aMdEClient, CContextEngine* aCtxEngine,

            CHarvesterPluginFactory* aHarvesterPluginFactory );

		/**

		* Pauses the monitoring.

		*

		* @return ETrue if success, EFalse if not.

		*/

		TBool PauseMonitoring();

		/**

		* Inherited from MMMCMonitorObserver. Will be called by CMMCMonitorAO when any MMC is inserted

		* or removed.

		*

		* @param aDriveChar  The drive which is inserted or removed.

		* @param aEventType  EMounted if media is inserted, EDismounted if media is removed.

		*/

		void MountEvent( TChar aDriveChar, TUint32 aMediaID, TMMCEventType aEventType );

	private:

		/**

		* C++ constructor - not exported;

		* implicitly called from NewL()

		*/

		CMMCMonitorPlugin();

		/**

		* 2nd phase construction, called by NewL().

		*/

		void ConstructL();

		/**

		* Creates and adds a file monitor for a specified drive.

		*

		* @param aDrive  A drive for file monitor.

		*/

		void AddNotificationPathL( TChar aDrive );

		/**

		* Starts monitor all MMCs in the device.

		*/

		void StartMonitoringAllMMCsL( RArray<TMdEMediaInfo>& aMedias );

	private: // data

		/**

		* An observer class to notify about file creations, modifications and deletions in any MMCs.

		*/

		MMonitorPluginObserver* iObserver;

		/**

		* A pointer to MMC monitor which observes any MMCs insertions and removals.

		*/

		CMMCMonitorAO* iMMCMonitor;

		/**

		* A pointer to MdE client.

		*/

		CMdEHarvesterSession* iMdEClient;

		CMMCMountTaskAO* iMountTask;

		CMMCUsbAO* iUsbMonitor;

		CMmcScannerAO* iMmcScanner;

		CMmcScannerAO* iHddScanner;

	};

#endif // __MMCMONITORPLUGIN_H__