зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
2.5 KiB
C++
Executable File
79 строки
2.5 KiB
C++
Executable File
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsAutoCopyListener_h_
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#define nsAutoCopyListener_h_
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#include "nsISelectionListener.h"
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#include "nsISelectionPrivate.h"
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class nsAutoCopyListener : public nsISelectionListener
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSISELECTIONLISTENER
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void Listen(nsISelectionPrivate *aSelection)
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{
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NS_ASSERTION(aSelection, "Null selection passed to Listen()");
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aSelection->AddSelectionListener(this);
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}
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static nsAutoCopyListener* GetInstance()
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{
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if (!sInstance) {
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sInstance = new nsAutoCopyListener();
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if (!sInstance)
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return nsnull;
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NS_ADDREF(sInstance);
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}
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return sInstance;
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}
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static void Shutdown()
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{
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NS_IF_RELEASE(sInstance);
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}
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private:
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static nsAutoCopyListener* sInstance;
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};
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#endif
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