/*
* Copyright (c) 2005-2009 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:
* Abstract base class for usbman extension plugins.
*
*/
/**
@file
@publishedPartner
@released
*/
#ifndef USBMANEXTENSIONPLUGIN_H
#define USBMANEXTENSIONPLUGIN_H
#include <e32base.h>
#include <d32usbc.h>
class MUsbmanExtensionPluginObserver;
class MUsbDeviceNotify;
/**
The UID of the Usbman Extension Plugin interface.
*/
const TInt KUsbmanExtensionPluginInterfaceUid = 0x10208DD6;
class CUsbmanExtensionPlugin : public CBase
{
public:
/**
Constructor.
@param aImplementationUid The UID of the implementation.
@param aObserver The observer of the plugin.
*/
IMPORT_C static CUsbmanExtensionPlugin* NewL(const TUid aImplementationUid,
MUsbmanExtensionPluginObserver& aObserver);
/** Destructor. */
IMPORT_C ~CUsbmanExtensionPlugin();
public:
/**
Called by Usbman server to get a pointer to an object which implements the
ExtensionPlugin interface with UID aUid. This is a mechanism for allowing future
change to the plugin API without breaking BC in existing (non-updated)
plugins.
*/
virtual TAny* GetInterface(TUid aUid) = 0;
protected:
/**
Constructor.
@param aObserver The observer of the plugin.
*/
IMPORT_C CUsbmanExtensionPlugin(MUsbmanExtensionPluginObserver& aObserver);
protected:
/**
Accessor for the observer.
@return The observer.
*/
IMPORT_C MUsbmanExtensionPluginObserver& Observer();
private: // owned
/**
UID set by ECOM when the instance is created. Used when the instance is
destroyed.
*/
TUid iInstanceId;
private: // unowned
MUsbmanExtensionPluginObserver& iObserver;
};
#endif // USBMANEXTENSIONPLUGIN_H