/*
* Copyright (c) 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: ESMRUI API extension definition
*
*/
#ifndef ESMRUTILSAPIEXT_H
#define ESMRUTILSAPIEXT_H
#include <cmrutils.h>
/**
* Extension API query function.
*
* Usage:
* Class providing extension:
*
* class CExtendable
* {
* public:
* .
* .
* .
* TAny* ExtensionL( TUid aExtUid );
* };
*
* TAny* CExtendable::ExtensionL( TUid aExtUid )
* {
* if (aExtUid == KOwnExtension)
* {
* return static_cast<ExtensionApiType*>( this );
* }
* }
*
* Class using extension:
*
*
* CMRUtils* utils = ...;
* ExtensionApiType* ext = ExtensionApiL<ExtensionApiType>( iUtils );
*
* @param aUtils
* @return Pointer to the requested extension API
*/
template<class ExtensionApiType>
ExtensionApiType* ExtensionApiL( CMRUtils& aUtils )
{
TAny* extApi = aUtils.ExtensionL( ExtensionApiType::ExtensionUid() );
if ( extApi )
{
return static_cast<ExtensionApiType*>( extApi );
}
else
{
return NULL;
}
}
#endif // ESMRUTILSAPIEXT_H
// End of File