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Diffstat (limited to 'comphelper/source/property/propmultiplex.cxx')
| -rw-r--r-- | comphelper/source/property/propmultiplex.cxx | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/comphelper/source/property/propmultiplex.cxx b/comphelper/source/property/propmultiplex.cxx new file mode 100644 index 000000000000..a7e9c1e395d0 --- /dev/null +++ b/comphelper/source/property/propmultiplex.cxx @@ -0,0 +1,184 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_comphelper.hxx" +#include <comphelper/propmultiplex.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; + +//======================================================================== +//= OPropertyChangeListener +//======================================================================== +//------------------------------------------------------------------------ +OPropertyChangeListener::~OPropertyChangeListener() +{ + if (m_pAdapter) + m_pAdapter->dispose(); +} + +//------------------------------------------------------------------ +void OPropertyChangeListener::_disposing(const EventObject&) throw( RuntimeException) +{ + // nothing to do here +} + +//------------------------------------------------------------------ +void OPropertyChangeListener::disposeAdapter() +{ + if ( m_pAdapter ) + m_pAdapter->dispose(); + + // will automatically set a new adapter + OSL_ENSURE( !m_pAdapter, "OPropertyChangeListener::disposeAdapter: what did dispose do?" ); +} + +//------------------------------------------------------------------ +void OPropertyChangeListener::setAdapter(OPropertyChangeMultiplexer* pAdapter) +{ + if (m_pAdapter) + { + ::osl::MutexGuard aGuard(m_rMutex); + m_pAdapter->release(); + m_pAdapter = NULL; + } + + if (pAdapter) + { + ::osl::MutexGuard aGuard(m_rMutex); + m_pAdapter = pAdapter; + m_pAdapter->acquire(); + } +} + +//======================================================================== +//= OPropertyChangeMultiplexer +//======================================================================== +//------------------------------------------------------------------ +OPropertyChangeMultiplexer::OPropertyChangeMultiplexer(OPropertyChangeListener* _pListener, const Reference< XPropertySet>& _rxSet, sal_Bool _bAutoReleaseSet) + :m_xSet(_rxSet) + ,m_pListener(_pListener) + ,m_nLockCount(0) + ,m_bListening(sal_False) + ,m_bAutoSetRelease(_bAutoReleaseSet) +{ + m_pListener->setAdapter(this); +} + +//------------------------------------------------------------------ +OPropertyChangeMultiplexer::~OPropertyChangeMultiplexer() +{ +} + +//------------------------------------------------------------------ +void OPropertyChangeMultiplexer::lock() +{ + ++m_nLockCount; +} + +//------------------------------------------------------------------ +void OPropertyChangeMultiplexer::unlock() +{ + --m_nLockCount; +} + +//------------------------------------------------------------------ +void OPropertyChangeMultiplexer::dispose() +{ + if (m_bListening) + { + Reference< XPropertyChangeListener> xPreventDelete(this); + + const ::rtl::OUString* pProperties = m_aProperties.getConstArray(); + for (sal_Int32 i = 0; i < m_aProperties.getLength(); ++i, ++pProperties) + m_xSet->removePropertyChangeListener(*pProperties, static_cast< XPropertyChangeListener*>(this)); + + m_pListener->setAdapter(NULL); + + m_pListener = NULL; + m_bListening = sal_False; + + if (m_bAutoSetRelease) + m_xSet = NULL; + } +} + +// XEventListener +//------------------------------------------------------------------ +void SAL_CALL OPropertyChangeMultiplexer::disposing( const EventObject& _rSource) throw( RuntimeException) +{ + if (m_pListener) + { + // tell the listener + if (!locked()) + m_pListener->_disposing(_rSource); + // disconnect the listener + if (m_pListener) // may have been reset whilest calling into _disposing + m_pListener->setAdapter(NULL); + } + + m_pListener = NULL; + m_bListening = sal_False; + + if (m_bAutoSetRelease) + m_xSet = NULL; +} + +// XPropertyChangeListener +//------------------------------------------------------------------ +void SAL_CALL OPropertyChangeMultiplexer::propertyChange( const PropertyChangeEvent& _rEvent ) throw( RuntimeException) +{ + if (m_pListener && !locked()) + m_pListener->_propertyChanged(_rEvent); +} + +//------------------------------------------------------------------ +void OPropertyChangeMultiplexer::addProperty(const ::rtl::OUString& _sPropertyName) +{ + if (m_xSet.is()) + { + m_xSet->addPropertyChangeListener(_sPropertyName, static_cast< XPropertyChangeListener*>(this)); + m_aProperties.realloc(m_aProperties.getLength() + 1); + m_aProperties.getArray()[m_aProperties.getLength()-1] = _sPropertyName; + m_bListening = sal_True; + } +} + +//......................................................................... +} +//......................................................................... + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |