| 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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| 2 | /* ***** BEGIN LICENSE BLOCK *****
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| 3 | * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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| 4 | *
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| 5 | * The contents of this file are subject to the Mozilla Public License Version
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| 6 | * 1.1 (the "License"); you may not use this file except in compliance with
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| 7 | * the License. You may obtain a copy of the License at
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| 8 | * http://www.mozilla.org/MPL/
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| 9 | *
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| 10 | * Software distributed under the License is distributed on an "AS IS" basis,
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| 11 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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| 12 | * for the specific language governing rights and limitations under the
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| 13 | * License.
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| 14 | *
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| 15 | * The Original Code is mozilla.org code.
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| 16 | *
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| 17 | * The Initial Developer of the Original Code is
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| 18 | * Netscape Communications Corporation.
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| 19 | * Portions created by the Initial Developer are Copyright (C) 1998
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| 20 | * the Initial Developer. All Rights Reserved.
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| 21 | *
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| 22 | * Contributor(s):
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| 23 | * Scott Collins <[email protected]>
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| 24 | *
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| 25 | * Alternatively, the contents of this file may be used under the terms of
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| 26 | * either of the GNU General Public License Version 2 or later (the "GPL"),
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| 27 | * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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| 28 | * in which case the provisions of the GPL or the LGPL are applicable instead
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| 29 | * of those above. If you wish to allow use of your version of this file only
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| 30 | * under the terms of either the GPL or the LGPL, and not to allow others to
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| 31 | * use your version of this file under the terms of the MPL, indicate your
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| 32 | * decision by deleting the provisions above and replace them with the notice
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| 33 | * and other provisions required by the GPL or the LGPL. If you do not delete
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| 34 | * the provisions above, a recipient may use your version of this file under
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| 35 | * the terms of any one of the MPL, the GPL or the LGPL.
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| 36 | *
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| 37 | * ***** END LICENSE BLOCK ***** */
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| 38 |
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| 39 | #include "nsIInterfaceRequestor.h"
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| 40 | #include "nsIInterfaceRequestorUtils.h"
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| 41 |
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| 42 | nsresult
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| 43 | nsGetInterface::operator()( const nsIID& aIID, void** aInstancePtr ) const
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| 44 | {
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| 45 | nsresult status;
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| 46 |
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| 47 | if ( mSource )
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| 48 | {
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| 49 | nsCOMPtr<nsIInterfaceRequestor> factoryPtr = do_QueryInterface(mSource, &status);
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| 50 | NS_ASSERTION(factoryPtr, "Did you know you were calling |do_GetInterface()| on an object that doesn't support the |nsIInterfaceRequestor| interface?");
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| 51 |
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| 52 | if ( factoryPtr )
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| 53 | status = factoryPtr->GetInterface(aIID, aInstancePtr);
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| 54 |
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| 55 | if ( NS_FAILED(status) )
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| 56 | *aInstancePtr = 0;
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| 57 | }
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| 58 | else
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| 59 | status = NS_ERROR_NULL_POINTER;
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| 60 |
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| 61 | if ( mErrorPtr )
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| 62 | *mErrorPtr = status;
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| 63 | return status;
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| 64 | }
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