203476b667
Change-Id: Iee554baae7239c9bf0ac35cab6ff235a88dc29a1 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/153973 Tested-by: Noel Grandin <noel.grandin@collabora.co.uk> Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
137 lines
4.2 KiB
C++
137 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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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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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <com/sun/star/beans/XPropertySet.hpp>
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#include <comphelper/propmultiplex2.hxx>
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#include <osl/diagnose.h>
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namespace comphelper
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{
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::lang;
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using namespace ::com::sun::star::beans;
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OPropertyChangeListener2::~OPropertyChangeListener2()
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{
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if (m_xAdapter.is())
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m_xAdapter->onListenerDestruction();
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}
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void OPropertyChangeListener2::disposeAdapter(std::unique_lock<std::mutex>& rGuard)
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{
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if (m_xAdapter.is())
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m_xAdapter->dispose(rGuard);
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// will automatically set a new adapter
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OSL_ENSURE(!m_xAdapter.is(), "OPropertyChangeListener::disposeAdapter: what did dispose do?");
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}
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void OPropertyChangeListener2::setAdapter(std::unique_lock<std::mutex>& /*rGuard*/,
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OPropertyChangeMultiplexer2* pAdapter)
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{
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m_xAdapter = pAdapter;
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}
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OPropertyChangeMultiplexer2::OPropertyChangeMultiplexer2(std::mutex& rMutex,
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std::unique_lock<std::mutex>& rGuard,
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OPropertyChangeListener2* _pListener,
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const Reference<XPropertySet>& _rxSet)
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: m_rMutex(rMutex)
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, m_xSet(_rxSet)
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, m_pListener(_pListener)
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, m_nLockCount(0)
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, m_bListening(false)
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{
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m_pListener->setAdapter(rGuard, this);
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}
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OPropertyChangeMultiplexer2::~OPropertyChangeMultiplexer2() {}
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void OPropertyChangeMultiplexer2::lock() { ++m_nLockCount; }
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void OPropertyChangeMultiplexer2::unlock() { --m_nLockCount; }
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void OPropertyChangeMultiplexer2::dispose(std::unique_lock<std::mutex>& rGuard)
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{
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if (!m_bListening)
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return;
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Reference<XPropertyChangeListener> xPreventDelete(this);
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for (const OUString& rProp : m_aProperties)
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m_xSet->removePropertyChangeListener(rProp, static_cast<XPropertyChangeListener*>(this));
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m_pListener->setAdapter(rGuard, nullptr);
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m_pListener = nullptr;
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m_bListening = false;
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m_xSet = nullptr;
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}
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void OPropertyChangeMultiplexer2::onListenerDestruction()
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{
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if (!m_bListening)
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return;
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Reference<XPropertyChangeListener> xPreventDelete(this);
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for (const OUString& rProp : m_aProperties)
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m_xSet->removePropertyChangeListener(rProp, static_cast<XPropertyChangeListener*>(this));
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}
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// XEventListener
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void SAL_CALL OPropertyChangeMultiplexer2::disposing(const EventObject& /*_rSource*/)
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{
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std::unique_lock g(m_rMutex);
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if (m_pListener)
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{
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// disconnect the listener
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if (m_pListener) // may have been reset whilst calling into _disposing
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m_pListener->setAdapter(g, nullptr);
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}
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m_pListener = nullptr;
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m_bListening = false;
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m_xSet = nullptr;
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}
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// XPropertyChangeListener
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void SAL_CALL OPropertyChangeMultiplexer2::propertyChange(const PropertyChangeEvent& _rEvent)
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{
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if (m_pListener && !locked())
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m_pListener->_propertyChanged(_rEvent);
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}
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void OPropertyChangeMultiplexer2::addProperty(const OUString& _sPropertyName)
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{
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if (m_xSet.is())
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{
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m_xSet->addPropertyChangeListener(_sPropertyName,
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static_cast<XPropertyChangeListener*>(this));
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m_aProperties.push_back(_sPropertyName);
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m_bListening = true;
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}
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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