Avoid potential negative array index access to cached text.
[LibreOffice.git] / chart2 / source / tools / ModifyListenerHelper.cxx
blob507e79fa32e21027f13432ae68aceac650f35c1c
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 * This file incorporates work covered by the following license notice:
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
20 #include <ModifyListenerHelper.hxx>
22 using namespace ::com::sun::star;
24 using ::com::sun::star::uno::Reference;
26 namespace chart
29 ModifyEventForwarder::ModifyEventForwarder()
33 // ____ XModifyBroadcaster ____
34 void SAL_CALL ModifyEventForwarder::addModifyListener( const Reference< util::XModifyListener >& aListener )
36 std::unique_lock aGuard(m_aMutex);
38 m_aModifyListeners.addInterface( aGuard, aListener );
41 void SAL_CALL ModifyEventForwarder::removeModifyListener( const Reference< util::XModifyListener >& aListener )
43 std::unique_lock aGuard(m_aMutex);
45 m_aModifyListeners.removeInterface( aGuard, aListener );
48 // ____ XModifyListener ____
49 void SAL_CALL ModifyEventForwarder::modified( const lang::EventObject& aEvent )
51 std::unique_lock aGuard(m_aMutex);
53 if( m_aModifyListeners.getLength(aGuard) == 0 )
54 return;
56 m_aModifyListeners.notifyEach( aGuard, &util::XModifyListener::modified, aEvent );
59 // ____ XEventListener (base of XModifyListener) ____
60 void SAL_CALL ModifyEventForwarder::disposing( const lang::EventObject& /* Source */ )
62 // nothing
65 // ____ WeakComponentImplHelperBase ____
66 void ModifyEventForwarder::disposing(std::unique_lock<std::mutex>& rGuard)
68 // dispose was called at this
69 m_aModifyListeners.disposeAndClear( rGuard, lang::EventObject( static_cast<cppu::OWeakObject*>(this) ) );
72 } // namespace chart::ModifyListenerHelper
74 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */