// Copyright (c) 1998-2009 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:

//

#if !defined __MTCLREG_H__

#define __MTCLREG_H__

#include <e32base.h>		// CActive, TFileName etc.

#include <msvreg.h>

#include <msvapi.h>			// MMsvSessionObserver

// CObserverRegistry mixes in session notification API

// this allows run-time update of the registries on the client-side.

// the server registry should inherit from CMtmDllRegistry

class CObserverRegistry : public CMtmDllRegistry, public MMsvSessionObserver

/** Base class for client, UI and UI data MTM registries.

It implements the session observer interface to update the registry information 

when MTM groups are installed or uninstalled.

@publishedAll

@released

*/

	{

public:

	IMPORT_C virtual void HandleSessionEventL(TMsvSessionEvent aEvent, TAny* aArg1, TAny* aArg2, TAny* aArg3);

	IMPORT_C ~CObserverRegistry();

protected:

	IMPORT_C CObserverRegistry(CMsvSession& aMsvSession,TUid aDllTypeUid,TTimeIntervalMicroSeconds32 aTimeoutMicroSeconds32);

	IMPORT_C void ConstructL();

protected:

	CMsvSession& iMsvSession;

	TBool iIsAdded;

	};

// Client side MTM registry

class CClientMtmRegistry : public CObserverRegistry

/** Accesses the Client-side MTM registry. 

This registry holds details of the all the Client-side MTMs currently available 

on the system. Message client applications use this class to get a CBaseMtm-derived 

object by which to access Client-side MTM functionality.

Note that the base class CMtmDllRegistry provides functions for discovering 

what MTMs are present in the registry.

@publishedAll

@released

*/

	{

public:

	IMPORT_C static CClientMtmRegistry* NewL(CMsvSession& aMsvSession, TTimeIntervalMicroSeconds32 aTimeoutMicroSeconds32=TTimeIntervalMicroSeconds32(30000000));

	IMPORT_C ~CClientMtmRegistry();

	IMPORT_C CBaseMtm* NewMtmL(TUid aMtmTypeUid);

	//

protected:

	CClientMtmRegistry(CMsvSession& aMsvSession,TTimeIntervalMicroSeconds32 aTimeoutMicroSeconds32);

	void ConstructL();

	//

private:

	CBaseMtm* DoNewMtmL(const RLibrary& aLib, CRegisteredMtmDll& aReg) const;

	};

#endif // __MTCLREG_H__