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-rw-r--r--comphelper/source/container/containermultiplexer.cxx159
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diff --git a/comphelper/source/container/containermultiplexer.cxx b/comphelper/source/container/containermultiplexer.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <comphelper/containermultiplexer.hxx>
+#include <com/sun/star/container/XContainer.hpp>
+#include <osl/diagnose.h>
+
+namespace comphelper
+{
+
+
+ using namespace ::com::sun::star::uno;
+ using namespace ::com::sun::star::lang;
+ using namespace ::com::sun::star::container;
+
+ OContainerListener::OContainerListener(::osl::Mutex& _rMutex)
+ :m_rMutex(_rMutex)
+ {
+ }
+
+
+ OContainerListener::~OContainerListener()
+ {
+ if (m_xAdapter.is())
+ {
+ m_xAdapter->dispose();
+ }
+ }
+
+
+ void OContainerListener::_elementInserted( const ContainerEvent& /*_rEvent*/ )
+ {
+ }
+
+
+ void OContainerListener::_elementRemoved( const ContainerEvent& )
+ {
+ }
+
+
+ void OContainerListener::_elementReplaced( const ContainerEvent& /*_rEvent*/ )
+ {
+ }
+
+
+ void OContainerListener::_disposing(const EventObject& )
+ {
+ }
+
+
+ void OContainerListener::setAdapter(OContainerListenerAdapter* pAdapter)
+ {
+ ::osl::MutexGuard aGuard(m_rMutex);
+ m_xAdapter = pAdapter;
+ }
+
+ OContainerListenerAdapter::OContainerListenerAdapter(OContainerListener* _pListener,
+ const Reference< XContainer >& _rxContainer)
+ :m_xContainer(_rxContainer)
+ ,m_pListener(_pListener)
+ {
+ if (m_pListener)
+ m_pListener->setAdapter(this);
+
+ osl_atomic_increment(&m_refCount);
+ try
+ {
+ m_xContainer->addContainerListener(this);
+ }
+ catch(const Exception&)
+ {
+ OSL_FAIL("Exception caught!");
+ }
+ osl_atomic_decrement(&m_refCount);
+ }
+
+
+ OContainerListenerAdapter::~OContainerListenerAdapter()
+ {
+ }
+
+
+ void OContainerListenerAdapter::dispose()
+ {
+ if (!m_xContainer.is())
+ return;
+
+ try
+ {
+ Reference< XContainerListener > xPreventDelete(this);
+ m_xContainer->removeContainerListener(xPreventDelete);
+ m_pListener->setAdapter(nullptr);
+ }
+ catch(const Exception&)
+ {
+ OSL_FAIL("Exception caught!");
+ }
+ m_xContainer = nullptr;
+ m_pListener = nullptr;
+ }
+
+
+ void SAL_CALL OContainerListenerAdapter::disposing( const EventObject& _rSource)
+ {
+ if (m_pListener)
+ {
+ // tell the listener
+ m_pListener->_disposing(_rSource);
+ // disconnect the listener
+ if ( m_pListener )
+ m_pListener->setAdapter(nullptr);
+ }
+
+ m_xContainer = nullptr;
+ m_pListener = nullptr;
+ }
+
+
+ void SAL_CALL OContainerListenerAdapter::elementInserted( const ContainerEvent& _rEvent )
+ {
+ if (m_pListener)
+ m_pListener->_elementInserted(_rEvent);
+ }
+
+
+ void SAL_CALL OContainerListenerAdapter::elementRemoved( const ContainerEvent& _rEvent )
+ {
+ if (m_pListener)
+ m_pListener->_elementRemoved(_rEvent);
+ }
+
+
+ void SAL_CALL OContainerListenerAdapter::elementReplaced( const ContainerEvent& _rEvent )
+ {
+ if (m_pListener)
+ m_pListener->_elementReplaced(_rEvent);
+ }
+
+
+} // namespace comphelper
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */