// Copyright (c) 2008-2009 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 SYMBIAN_DEN_APIEXTENSION_H

#define SYMBIAN_DEN_APIEXTENSION_H

#include <ecom/ecom.h>

#include <elements/interfacetable.h>

#include <elements/responsemsg.h>

#include <elements/sd_std.h>

#include <elements/sd_apiextensionclient.h>

namespace Den

{

/**

	@internalTechnology

*/

class CExtItfMsgPluginInfo : public CBase

	{

public:

	IMPORT_C static CExtItfMsgPluginInfo* NewInstanceL(const Meta::STypeId& aTypeId);

	IMPORT_C ~CExtItfMsgPluginInfo();

	virtual const TImplementationProxy* ImplementationProxy() const = 0;

	virtual TInt ImplementationProxyTableSize() const = 0;

private:

	TUid iDestroyUid;

	};

/**

	@internalTechnology

*/

class MIpcExtensionInterface

	{

public:

	virtual TInt Open(TUint aClientId) = 0;

	virtual void Close(TUint aClientId) = 0;

	virtual Meta::STypeId MsgImplTid() const = 0;

	};

/**

	@internalTechnology

*/

class AIpcExtensionInterfaceBase : public MIpcExtensionInterface

	{

	friend class TIpcExtensionRoutingMessageBase;

protected:

	IMPORT_C AIpcExtensionInterfaceBase(); //sets iMsgPluginInfo to NULL

	virtual ~AIpcExtensionInterfaceBase()

		{

		}

private:

	//Only used internally by TIpcExtensionRoutingMessageBase - don't export!

	void RegisterMessagesL();

	void DeregisterMessages();

private:

	CExtItfMsgPluginInfo* iMsgPluginInfo;

	};

/**

	@internalTechnology

*/

template <TInt32 MSG_IMPL_UID, TInt32 MSG_IMPL_TYPEID = 0>

class AIpcExtensionInterface : public AIpcExtensionInterfaceBase

	{

public:

	enum {EUid = MSG_IMPL_UID};

	enum {ETypeId = MSG_IMPL_TYPEID};

protected:

	inline Meta::STypeId MsgImplTid() const

		{

		return Meta::STypeId::CreateSTypeId(MSG_IMPL_UID, MSG_IMPL_TYPEID);

		}

	};

} //namespace Den

#endif //SYMBIAN_DEN_APIEXTENSION_H