1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Mozilla Communicator client code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
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26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #ifndef nsAutoCopyListener_h_
39 : #define nsAutoCopyListener_h_
40 :
41 : #include "nsISelectionListener.h"
42 : #include "nsISelectionPrivate.h"
43 :
44 : class nsAutoCopyListener : public nsISelectionListener
45 0 : {
46 : public:
47 : NS_DECL_ISUPPORTS
48 : NS_DECL_NSISELECTIONLISTENER
49 :
50 0 : void Listen(nsISelectionPrivate *aSelection)
51 : {
52 0 : NS_ASSERTION(aSelection, "Null selection passed to Listen()");
53 0 : aSelection->AddSelectionListener(this);
54 0 : }
55 :
56 0 : static nsAutoCopyListener* GetInstance()
57 : {
58 0 : if (!sInstance) {
59 0 : sInstance = new nsAutoCopyListener();
60 :
61 0 : NS_ADDREF(sInstance);
62 : }
63 :
64 0 : return sInstance;
65 : }
66 :
67 1403 : static void Shutdown()
68 : {
69 1403 : NS_IF_RELEASE(sInstance);
70 1403 : }
71 :
72 : private:
73 : static nsAutoCopyListener* sInstance;
74 : };
75 :
76 : #endif
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