michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsIInterfaceRequestor.h"
michael@0: #include "nsIInterfaceRequestorUtils.h"
michael@0: 
michael@0: nsresult
michael@0: nsGetInterface::operator()( const nsIID& aIID, void** aInstancePtr ) const
michael@0: {
michael@0:   nsresult status;
michael@0: 
michael@0:   if ( mSource )
michael@0:   {
michael@0:     nsCOMPtr<nsIInterfaceRequestor> factoryPtr = do_QueryInterface(mSource, &status);
michael@0: 
michael@0:     if ( factoryPtr )
michael@0:       status = factoryPtr->GetInterface(aIID, aInstancePtr);
michael@0:     else
michael@0:       status = NS_ERROR_NO_INTERFACE;
michael@0:   }
michael@0:   else
michael@0:     status = NS_ERROR_NULL_POINTER;
michael@0: 
michael@0:   if ( NS_FAILED(status) )
michael@0:     *aInstancePtr = 0;
michael@0:   if ( mErrorPtr )
michael@0:     *mErrorPtr = status;
michael@0:   return status;
michael@0: }