1 : /* ***** BEGIN LICENSE BLOCK *****
2 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3 : *
4 : * The contents of this file are subject to the Mozilla Public License Version
5 : * 1.1 (the "License"); you may not use this file except in compliance with
6 : * the License. You may obtain a copy of the License at
7 : * http://www.mozilla.org/MPL/
8 : *
9 : * Software distributed under the License is distributed on an "AS IS" basis,
10 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 : * for the specific language governing rights and limitations under the
12 : * License.
13 : *
14 : * The Original Code is Mozilla.
15 : *
16 : * The Initial Developer of the Original Code is IBM Corporation.
17 : * Portions created by IBM Corporation are Copyright (C) 2004
18 : * IBM Corporation. All Rights Reserved.
19 : *
20 : * Contributor(s):
21 : * Darin Fisher <darin@meer.net>
22 : *
23 : * Alternatively, the contents of this file may be used under the terms of
24 : * either the GNU General Public License Version 2 or later (the "GPL"), or
25 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26 : * in which case the provisions of the GPL or the LGPL are applicable instead
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30 : * decision by deleting the provisions above and replace them with the notice
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32 : * the provisions above, a recipient may use your version of this file under
33 : * the terms of any one of the MPL, the GPL or the LGPL.
34 : *
35 : * ***** END LICENSE BLOCK ***** */
36 :
37 : #include "nsInterfaceRequestorAgg.h"
38 : #include "nsCOMPtr.h"
39 :
40 : class nsInterfaceRequestorAgg : public nsIInterfaceRequestor
41 2977 : {
42 : public:
43 : NS_DECL_ISUPPORTS
44 : NS_DECL_NSIINTERFACEREQUESTOR
45 :
46 2989 : nsInterfaceRequestorAgg(nsIInterfaceRequestor *aFirst,
47 : nsIInterfaceRequestor *aSecond)
48 : : mFirst(aFirst)
49 2989 : , mSecond(aSecond) {}
50 :
51 : nsCOMPtr<nsIInterfaceRequestor> mFirst, mSecond;
52 : };
53 :
54 : // XXX This needs to support threadsafe refcounting until we fix bug 243591.
55 77490 : NS_IMPL_THREADSAFE_ISUPPORTS1(nsInterfaceRequestorAgg, nsIInterfaceRequestor)
56 :
57 : NS_IMETHODIMP
58 8 : nsInterfaceRequestorAgg::GetInterface(const nsIID &aIID, void **aResult)
59 : {
60 8 : nsresult rv = NS_ERROR_NO_INTERFACE;
61 8 : if (mFirst)
62 8 : rv = mFirst->GetInterface(aIID, aResult);
63 8 : if (mSecond && NS_FAILED(rv))
64 0 : rv = mSecond->GetInterface(aIID, aResult);
65 8 : return rv;
66 : }
67 :
68 : nsresult
69 2989 : NS_NewInterfaceRequestorAggregation(nsIInterfaceRequestor *aFirst,
70 : nsIInterfaceRequestor *aSecond,
71 : nsIInterfaceRequestor **aResult)
72 : {
73 2989 : *aResult = new nsInterfaceRequestorAgg(aFirst, aSecond);
74 2989 : if (!*aResult)
75 0 : return NS_ERROR_OUT_OF_MEMORY;
76 2989 : NS_ADDREF(*aResult);
77 2989 : return NS_OK;
78 : }
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