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 XPCOM.
15 : *
16 : * The Initial Developer of the Original Code is
17 : * the Mozilla Foundation <http://www.mozilla.org/>.
18 : * Portions created by the Initial Developer are Copyright (C) 2006
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : * Benjamin Smedberg <benjamin@smedbergs.us> - New code
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either the GNU General Public License Version 2 or later (the "GPL"), or
26 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
28 : * of those above. If you wish to allow use of your version of this file only
29 : * under the terms of either the GPL or the LGPL, and not to allow others to
30 : * use your version of this file under the terms of the MPL, indicate your
31 : * decision by deleting the provisions above and replace them with the notice
32 : * and other provisions required by the GPL or the LGPL. If you do not delete
33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #ifndef nsXPTCUtils_h__
39 : #define nsXPTCUtils_h__
40 :
41 : #include "xptcall.h"
42 :
43 : /**
44 : * A helper class that initializes an xptcall helper at construction
45 : * and releases it at destruction.
46 : */
47 : class nsAutoXPTCStub : protected nsIXPTCProxy
48 : {
49 : public:
50 : nsISomeInterface* mXPTCStub;
51 :
52 : protected:
53 106804 : nsAutoXPTCStub() : mXPTCStub(nsnull) { }
54 :
55 : nsresult
56 106804 : InitStub(const nsIID& aIID)
57 : {
58 106804 : return NS_GetXPTCallStub(aIID, this, &mXPTCStub);
59 : }
60 :
61 106521 : ~nsAutoXPTCStub()
62 106521 : {
63 106521 : if (mXPTCStub)
64 106521 : NS_DestroyXPTCallStub(mXPTCStub);
65 106521 : }
66 : };
67 :
68 : #endif // nsXPTCUtils_h__
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