/*

* Copyright (c) 2008 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:  HID Keyboard Layout ECOM interface definition.

 *

*/

#ifndef __HIDLAYOUTPLUGININTERFACE_H__

#define __HIDLAYOUTPLUGININTERFACE_H__

#include <ecom/ecom.h>

#include "hiddebug.h"

#include "hiduids.h"

// Constant for plugin interface:

const TUid KHidLayoutPluginInterfaceUid =

    {

    LAYOUT_PLUGIN_IF

    };

/**

 * Interface class for HID Layout plugin. All plugins will implement this class.

 *

 * @lib kbdlayout.lib ?

 * @since ...

 */

class CHidLayoutPluginInterface : public CBase

    {

public:

    // Constructors & destructors

    /**

     * Creates new plugin having the given UID.

     * Uses Leave code KErrNotFound if implementation is not found.

     *

     * @param aImplementationUid Implementation UID of the plugin to be

     *        created.

     */

    inline static CHidLayoutPluginInterface* NewL(

            const TUid aImplementationUid);

    /**

     * Destructor

     */

    inline ~CHidLayoutPluginInterface();

protected:

    // New

    /**

     * C++ constructor.

     */

    inline CHidLayoutPluginInterface();

private:

    // Data

    /**

     * ECOM plugin instance UID.

     */

    TUid iDtor_ID_Key;

    };

inline CHidLayoutPluginInterface::CHidLayoutPluginInterface()

    {

    }

inline CHidLayoutPluginInterface::~CHidLayoutPluginInterface()

    {

    DBG(RDebug::Print(_L("[HID]\tCHidLayoutPluginInterface: destroying plugin 0x%08x"),iDtor_ID_Key));

    REComSession::DestroyedImplementation(iDtor_ID_Key);

    }

inline CHidLayoutPluginInterface* CHidLayoutPluginInterface::NewL(

        TUid aImplementationUid)

    {

    DBG(RDebug::Print(_L("[HID]\tCHidLayoutPluginInterface: Loading plugin 0x%08x"),aImplementationUid.iUid));

    TAny* ptr;

    TInt32 keyOffset = _FOFF( CHidLayoutPluginInterface, iDtor_ID_Key );

    ptr = REComSession::CreateImplementationL(aImplementationUid, keyOffset);

    DEBUG_PRINT( _L( "[HID]\tCHidLayoutPluginInterface: Loading done." ) );

    return reinterpret_cast<CHidLayoutPluginInterface*> (ptr);

    }

#endif