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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
commit267c6f2ac71f92999e969232431ba04678e7437e (patch)
tree358c9467650e1d0a1d7227a21dac2e3d08b622b2 /comphelper/source/property/propmultiplex2.cxx
parentInitial commit. (diff)
downloadlibreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz
libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'comphelper/source/property/propmultiplex2.cxx')
-rw-r--r--comphelper/source/property/propmultiplex2.cxx137
1 files changed, 137 insertions, 0 deletions
diff --git a/comphelper/source/property/propmultiplex2.cxx b/comphelper/source/property/propmultiplex2.cxx
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+++ b/comphelper/source/property/propmultiplex2.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 <com/sun/star/beans/XPropertySet.hpp>
+#include <comphelper/propmultiplex2.hxx>
+#include <osl/diagnose.h>
+
+namespace comphelper
+{
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::beans;
+
+OPropertyChangeListener2::~OPropertyChangeListener2()
+{
+ if (m_xAdapter.is())
+ m_xAdapter->onListenerDestruction();
+}
+
+void OPropertyChangeListener2::disposeAdapter(std::unique_lock<std::mutex>& rGuard)
+{
+ if (m_xAdapter.is())
+ m_xAdapter->dispose(rGuard);
+
+ // will automatically set a new adapter
+ OSL_ENSURE(!m_xAdapter.is(), "OPropertyChangeListener::disposeAdapter: what did dispose do?");
+}
+
+void OPropertyChangeListener2::setAdapter(std::unique_lock<std::mutex>& /*rGuard*/,
+ OPropertyChangeMultiplexer2* pAdapter)
+{
+ m_xAdapter = pAdapter;
+}
+
+OPropertyChangeMultiplexer2::OPropertyChangeMultiplexer2(std::mutex& rMutex,
+ std::unique_lock<std::mutex>& rGuard,
+ OPropertyChangeListener2* _pListener,
+ const Reference<XPropertySet>& _rxSet)
+ : m_rMutex(rMutex)
+ , m_xSet(_rxSet)
+ , m_pListener(_pListener)
+ , m_nLockCount(0)
+ , m_bListening(false)
+{
+ m_pListener->setAdapter(rGuard, this);
+}
+
+OPropertyChangeMultiplexer2::~OPropertyChangeMultiplexer2() {}
+
+void OPropertyChangeMultiplexer2::lock() { ++m_nLockCount; }
+
+void OPropertyChangeMultiplexer2::unlock() { --m_nLockCount; }
+
+void OPropertyChangeMultiplexer2::dispose(std::unique_lock<std::mutex>& rGuard)
+{
+ if (!m_bListening)
+ return;
+
+ Reference<XPropertyChangeListener> xPreventDelete(this);
+
+ for (const OUString& rProp : m_aProperties)
+ m_xSet->removePropertyChangeListener(rProp, static_cast<XPropertyChangeListener*>(this));
+
+ m_pListener->setAdapter(rGuard, nullptr);
+
+ m_pListener = nullptr;
+ m_bListening = false;
+
+ m_xSet = nullptr;
+}
+
+void OPropertyChangeMultiplexer2::onListenerDestruction()
+{
+ if (!m_bListening)
+ return;
+
+ Reference<XPropertyChangeListener> xPreventDelete(this);
+
+ for (const OUString& rProp : m_aProperties)
+ m_xSet->removePropertyChangeListener(rProp, static_cast<XPropertyChangeListener*>(this));
+}
+
+// XEventListener
+
+void SAL_CALL OPropertyChangeMultiplexer2::disposing(const EventObject& /*_rSource*/)
+{
+ std::unique_lock g(m_rMutex);
+ if (m_pListener)
+ {
+ // disconnect the listener
+ if (m_pListener) // may have been reset whilst calling into _disposing
+ m_pListener->setAdapter(g, nullptr);
+ }
+
+ m_pListener = nullptr;
+ m_bListening = false;
+
+ m_xSet = nullptr;
+}
+
+// XPropertyChangeListener
+
+void SAL_CALL OPropertyChangeMultiplexer2::propertyChange(const PropertyChangeEvent& _rEvent)
+{
+ if (m_pListener && !locked())
+ m_pListener->_propertyChanged(_rEvent);
+}
+
+void OPropertyChangeMultiplexer2::addProperty(const OUString& _sPropertyName)
+{
+ if (m_xSet.is())
+ {
+ m_xSet->addPropertyChangeListener(_sPropertyName,
+ static_cast<XPropertyChangeListener*>(this));
+ m_aProperties.push_back(_sPropertyName);
+ m_bListening = true;
+ }
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */