/*

* Copyright (c) 2006 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: 

*        Header file for CUSBClassChangeUIPluginInterface class.

*

*/

#ifndef USBCLASSCHANGEUIPLUGININTERFACE_H

#define USBCLASSCHANGEUIPLUGININTERFACE_H

// System includes

#include <gsplugininterface.h>

/**

 * ECOM plug-in creation for the standalone application. 

 * The view class must inherit this class to be able to signal the

 * destruction of the interface implementation. If this implementation

 * was created in the GS application, the destruction must not be 

 * signalled, since the view framework does it. If this implementation

 * was created in the standalone USB UI application, the destruction

 * must be signalled, since otherwise there will be memory leaks. 

 * 

 * The inherited CGSPluginInterface destructor does not signal the

 * desctruction. Also, it cannot be signalled in the destructor of 

 * this class, since it would be called while deleting the view. 

 * This class stores the instance ID iDtor_ID_Key, because it can't

 * access the private member variable of class CGSPluginInterface.

 * 

 * Note that the implementation is inline, because the concrete 

 * plug-in has not been loaded. The implementation of this class can't

 * reside in the plug-in to be loaded by the ECOM framework. 

 * 

 */ 

class CUSBClassChangeUIPluginInterface	: public CGSPluginInterface

    {    

    public: // Constructors & destructors

        /**

         * Creates new USBClassChangeUI view plugin having the given UID.

         * Uses Leave code KErrNotFound, if implementation is not found.

         *

         * @param aImplementationUid Implementation UID of the plugin to be 

         *        created.

         * @param aInitParams The AppUi of the USBClassChangeUI application.

         * @return The new view. 

         */                                                 

        static CUSBClassChangeUIPluginInterface* NewL(

            const TUid aImplementationUid, 

            TAny* aInitParams);

        /**

         * Destructor

         */

        ~CUSBClassChangeUIPluginInterface();

        /**

         * Signal destruction of the interface implementation to ECOM.

         * This should not be called from the GS plugin, since the 

         * framework wants to do it itself. From the application, the

         * view must call this before destruction. 

         */

        void SignalDestruction();

    protected: 

        /**

         * Default constructor

         */    

        CUSBClassChangeUIPluginInterface();

    private: // Data

        /**

         * ECOM plugin instance UID. 

         * The inherited member variable with the same name is hidden, but

         * there is no way to access it. 

         */

        TUid iDtor_ID_Key;

    };

#include "USBClassChangeUIPluginInterface.inl"

#endif //USBCLASSCHANGEUIPLUGININTERFACE_H

//End of file