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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: backendnotifier.cxx,v $
* $Revision: 1.6 $
*
* 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
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