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Diffstat (limited to 'configmgr/source/backend/backendnotifier.cxx')
-rw-r--r-- | configmgr/source/backend/backendnotifier.cxx | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/configmgr/source/backend/backendnotifier.cxx b/configmgr/source/backend/backendnotifier.cxx new file mode 100644 index 000000000000..1f51eb56cb8e --- /dev/null +++ b/configmgr/source/backend/backendnotifier.cxx @@ -0,0 +1,195 @@ +/************************************************************************* + * + * 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_configmgr.hxx" + +#include "backendnotifier.hxx" + +#ifndef INCLUDED_ALGORITHM +#include <algorithm> +#define INCLUDED_ALGORITHM +#endif +#include "configpath.hxx" + +namespace configmgr +{ +// --------------------------------------------------------------------------- + namespace backend + { + + +//---------------------------------------------------------------------------- +BackendChangeNotifier::BackendChangeNotifier(const uno::Reference<backenduno::XBackend>& _xBackend) +: m_aMutex() + ,m_aListeners() + ,m_aBackend(_xBackend, uno::UNO_QUERY) +{ + +} +// --------------------------------------------------------------------------- + +BackendChangeNotifier::~BackendChangeNotifier() +{ + m_aListeners.clear(); +} +// --------------------------------------------------------------------------- +void SAL_CALL BackendChangeNotifier::componentDataChanged(const backenduno::ComponentChangeEvent& _aEvent) + throw (::com::sun::star::uno::RuntimeException) +{ + rtl::OUString aComponentName = _aEvent.Component; + std::map<rtl::OUString, ComponentNotifier>::iterator aIter = m_aListeners.find(aComponentName); + if(aIter != m_aListeners.end()) + { + aIter->second.notifyListeners(aComponentName); + } +} +// ----------------------------------------------------------------------------- +void SAL_CALL BackendChangeNotifier::disposing( lang::EventObject const & /*rSource*/ ) +throw (uno::RuntimeException) +{ + osl::MutexGuard aListGuard(m_aMutex); + if (m_aBackend.is()) + { + m_aBackend.clear(); + } + m_aListeners.clear(); +} +// ----------------------------------------------------------------------------- +void BackendChangeNotifier::addListener(INodeDataListener * _xListener, const ComponentRequest& _aRequest) SAL_THROW(()) +{ + osl::MutexGuard aListGuard(m_aMutex); + + OSL_PRECOND(_xListener, "ERROR: trying to register a NULL listener"); + ComponentListener aComponentListener(_xListener, _aRequest.getOptions()); + + const rtl::OUString aComponentName = _aRequest.getComponentName(); + + //Check if we have a Listener registered for that Component + std::map<rtl::OUString, ComponentNotifier>::iterator aIter; + aIter = m_aListeners.find(aComponentName); + if (aIter == m_aListeners.end()) + { + ComponentNotifier aComponentNotifier; + aComponentNotifier.addListenerToList(aComponentListener); + m_aListeners[aComponentName] = aComponentNotifier; + + //Now need to register Listener with MultiStratumBackend for that Component + if (m_aBackend.is()) + { + m_aBackend->addChangesListener(this, aComponentName); + } + } + else + { + //Add Listener and Option to ComponentNotifier list + aIter->second.addListenerToList(aComponentListener); + + } + +} +// --------------------------------------------------------------------------- + +void BackendChangeNotifier::removeListener(INodeDataListener * _xListener, const ComponentRequest& _aRequest) SAL_THROW(()) +{ + osl::MutexGuard aListGuard(m_aMutex); + OSL_PRECOND(!m_aListeners.empty(), + "BackendChangeNotifier:Cannot Remove Listener, no Listeners Registered"); + OSL_PRECOND(_xListener, "ERROR: trying to remove a NULL listener"); + + std::map<rtl::OUString, ComponentNotifier>::iterator aIter; + rtl::OUString aComponentName = _aRequest.getComponentName(); + + aIter = m_aListeners.find(aComponentName); + if (aIter == m_aListeners.end()) + { + OSL_TRACE("BackendChangeNotifier: removeListener: no listener registered for component %s", + aComponentName.getStr()); + } + else + { + ComponentListener aComponentListener(_xListener, _aRequest.getOptions()); + aIter->second.removeListenerFromList(aComponentListener); + if (aIter->second.isListEmpty()) + { + m_aListeners.erase(aIter); + //Need all to de-register listeners from the lower layers + if (m_aBackend.is()) + { + m_aBackend->removeChangesListener(this, aComponentName); + } + } + } + +} +// --------------------------------------------------------------------------- +ComponentNotifier::ComponentNotifier():m_aListenerList() +{ +} +// --------------------------------------------------------------------------- + + +void ComponentNotifier::addListenerToList(const ComponentListener& _aListener) +{ + m_aListenerList.push_back(_aListener); + //REM TO REMOVE + ComponentListener aListener = m_aListenerList.front(); + +} +// --------------------------------------------------------------------------- +void ComponentNotifier::removeListenerFromList(const ComponentListener& _aListener) +{ + OSL_PRECOND(!m_aListenerList.empty(), + "ComponentNotifier:Cannot Remove Listener, no Listeners Registered"); + + std::list<ComponentListener>::iterator aIter; + + //Remove first instance that matches in the list + aIter = std::find(m_aListenerList.begin(), m_aListenerList.end(),_aListener); + if(aIter != m_aListenerList.end()) + { + m_aListenerList.erase(aIter); + } +} +// --------------------------------------------------------------------------- +void ComponentNotifier::notifyListeners(const rtl::OUString& _aComponent) +{ + + for( std::list<ComponentListener>::iterator aIter = m_aListenerList.begin(); + aIter != m_aListenerList.end(); aIter++) + { + ComponentRequest aRequest(_aComponent, (*aIter).m_aOptions); + + (*aIter).m_aListener->dataChanged(aRequest); + } + +} +// --------------------------------------------------------------------------- + } // namespace backend + +// --------------------------------------------------------------------------- +} // namespace configmgr |