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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 "listenerbase.hxx"
#include <svl/listeneriter.hxx>
#include <svl/listener.hxx>
#include <svl/broadcast.hxx>
SvtListenerBase::SvtListenerBase( SvtListener& rLst,
SvtBroadcaster& rBroadcaster )
: pLeft( 0 ), pRight( 0 ),
pBroadcaster( &rBroadcaster ), pListener( &rLst )
{
pNext = rLst.pBrdCastLst;
rLst.pBrdCastLst = this;
if( pBroadcaster->pRoot )
{
// set ever behind the root
pRight = pBroadcaster->pRoot->pRight;
pBroadcaster->pRoot->pRight = this;
this->pLeft = pBroadcaster->pRoot;
if( pRight )
pRight->pLeft = this;
}
else
pBroadcaster->pRoot = this;
}
SvtListenerBase::~SvtListenerBase()
{
SvtListenerBase *pR = pRight, *pL = pLeft;
if( pBroadcaster->pRoot )
pBroadcaster->pRoot = pL ? pL : pR;
if( pL )
pL->pRight = pR;
if( pR )
pR->pLeft = pL;
SvtListenerIter::RemoveListener( *this, pR );
if( !pBroadcaster->pRoot )
pBroadcaster->ListenersGone();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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