--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbuis/usbui/USBClassChangeUIPlugin/inc/USBClassChangeUIPluginInterface.h	Wed Sep 01 12:20:49 2010 +0100
@@ -0,0 +1,97 @@
+/*
+* 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