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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/drawing/framework/XConfigurationChangeListener.hpp>
#include <com/sun/star/drawing/framework/XConfigurationController.hpp>
#include <com/sun/star/drawing/framework/XResource.hpp>
#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::framework {
ConfigurationControllerBroadcaster::ConfigurationControllerBroadcaster (
const Reference<XConfigurationController>& rxController)
: mxConfigurationController(rxController)
{
}
void ConfigurationControllerBroadcaster::AddListener(
const Reference<XConfigurationChangeListener>& rxListener,
const OUString& rsEventType,
const Any& rUserData)
{
if ( ! rxListener.is())
throw lang::IllegalArgumentException("invalid listener",
mxConfigurationController,
0);
maListenerMap.try_emplace(rsEventType);
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);
ListenerList::iterator iList;
for (auto& rMap : maListenerMap)
{
iList = std::find_if(rMap.second.begin(), rMap.second.end(),
[&rxListener](const ListenerDescriptor& rList) { return rList.mxListener == rxListener; });
if (iList != rMap.second.end())
rMap.second.erase(iList);
}
}
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);
for (const auto& rListener : rList)
{
try
{
aEvent.UserData = rListener.maUserData;
rListener.mxListener->notifyConfigurationChange(aEvent);
}
catch (const lang::DisposedException& rException)
{
// When the exception comes from the listener itself then
// unregister it.
if (rException.Context == rListener.mxListener)
RemoveListener(rListener.mxListener);
}
catch (const RuntimeException&)
{
DBG_UNHANDLED_EXCEPTION("sd");
}
}
}
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<XConfigurationChangeListener> xListener (
iMap->second.front().mxListener );
if (xListener.is())
{
// Tell the listener that the configuration controller is
// being disposed and remove the listener (for all event
// types).
try
{
RemoveListener(xListener);
xListener->disposing(aEvent);
}
catch (const RuntimeException&)
{
DBG_UNHANDLED_EXCEPTION("sd");
}
}
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: */
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