48 lines
1.0 KiB
C++
48 lines
1.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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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#include "mozilla/Attributes.h"
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class nsAutoCopyListener final : 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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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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~nsAutoCopyListener() {}
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static nsAutoCopyListener* sInstance;
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};
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#endif
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