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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 "ConfigurationControllerBroadcaster.hxx"
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <tools/diagnose_ex.h>
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::drawing::framework;
namespace sd { namespace framework {
ConfigurationControllerBroadcaster::ConfigurationControllerBroadcaster (
const Reference<XConfigurationController>& rxController)
: mxConfigurationController(rxController),
maListenerMap()
{
}
void ConfigurationControllerBroadcaster::AddListener(
const Reference<XConfigurationChangeListener>& rxListener,
const OUString& rsEventType,
const Any& rUserData)
{
if ( ! rxListener.is())
throw lang::IllegalArgumentException("invalid listener",
mxConfigurationController,
0);
if (maListenerMap.find(rsEventType) == maListenerMap.end())
maListenerMap[rsEventType] = ListenerList();
ListenerDescriptor aDescriptor;
aDescriptor.mxListener = rxListener;
aDescriptor.maUserData = rUserData;
maListenerMap[rsEventType].push_back(aDescriptor);
}
void ConfigurationControllerBroadcaster::RemoveListener(
const Reference<XConfigurationChangeListener>& rxListener)
{
if ( ! rxListener.is())
throw lang::IllegalArgumentException("invalid listener",
mxConfigurationController,
0);
ListenerMap::iterator iMap;
ListenerList::iterator iList;
for (iMap=maListenerMap.begin(); iMap!=maListenerMap.end(); ++iMap)
{
for (iList=iMap->second.begin(); iList!=iMap->second.end(); ++iList)
{
if (iList->mxListener == rxListener)
{
iMap->second.erase(iList);
break;
}
}
}
}
void ConfigurationControllerBroadcaster::NotifyListeners (
const ListenerList& rList,
const ConfigurationChangeEvent& rEvent)
{
// Create a local copy of the event in which the user data is modified
// for every listener.
ConfigurationChangeEvent aEvent (rEvent);
ListenerList::const_iterator iListener;
for (iListener=rList.begin(); iListener!=rList.end(); ++iListener)
{
try
{
aEvent.UserData = iListener->maUserData;
iListener->mxListener->notifyConfigurationChange(aEvent);
}
catch (const lang::DisposedException& rException)
{
// When the exception comes from the listener itself then
// unregister it.
if (rException.Context == iListener->mxListener)
RemoveListener(iListener->mxListener);
}
catch (const RuntimeException&)
{
DBG_UNHANDLED_EXCEPTION();
}
}
}
void ConfigurationControllerBroadcaster::NotifyListeners (const ConfigurationChangeEvent& rEvent)
{
// Notify the specialized listeners.
ListenerMap::const_iterator iMap (maListenerMap.find(rEvent.Type));
if (iMap != maListenerMap.end())
{
// Create a local list of the listeners to avoid problems with
// concurrent changes and to be able to remove disposed listeners.
ListenerList aList (iMap->second.begin(), iMap->second.end());
NotifyListeners(aList,rEvent);
}
// Notify the universal listeners.
iMap = maListenerMap.find(OUString());
if (iMap != maListenerMap.end())
{
// Create a local list of the listeners to avoid problems with
// concurrent changes and to be able to remove disposed listeners.
ListenerList aList (iMap->second.begin(), iMap->second.end());
NotifyListeners(aList,rEvent);
}
}
void ConfigurationControllerBroadcaster::NotifyListeners (
const OUString& rsEventType,
const Reference<XResourceId>& rxResourceId,
const Reference<XResource>& rxResourceObject)
{
ConfigurationChangeEvent aEvent;
aEvent.Type = rsEventType;
aEvent.ResourceId = rxResourceId;
aEvent.ResourceObject = rxResourceObject;
try
{
NotifyListeners(aEvent);
}
catch (const lang::DisposedException&)
{
}
}
void ConfigurationControllerBroadcaster::DisposeAndClear()
{
lang::EventObject aEvent;
aEvent.Source = mxConfigurationController;
while (!maListenerMap.empty())
{
ListenerMap::iterator iMap (maListenerMap.begin());
if (iMap == maListenerMap.end())
break;
// When the first vector is empty then remove it from the map.
if (iMap->second.empty())
{
maListenerMap.erase(iMap);
continue;
}
else
{
Reference<lang::XEventListener> xListener (
iMap->second.front().mxListener, UNO_QUERY);
if (xListener.is())
{
// Tell the listener that the configuration controller is
// being disposed and remove the listener (for all event
// types).
try
{
RemoveListener(iMap->second.front().mxListener);
xListener->disposing(aEvent);
}
catch (const RuntimeException&)
{
DBG_UNHANDLED_EXCEPTION();
}
}
else
{
// Remove just this reference to the listener.
iMap->second.erase(iMap->second.begin());
}
}
}
}
} } // end of namespace sd::framework
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
