Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 :
21 : #include "listenerbase.hxx"
22 : #include <svl/listeneriter.hxx>
23 : #include <svl/listener.hxx>
24 : #include <svl/broadcast.hxx>
25 :
26 :
27 14246 : SvtListenerBase::SvtListenerBase( SvtListener& rLst,
28 : SvtBroadcaster& rBroadcaster )
29 : : pLeft( 0 ), pRight( 0 ),
30 14246 : pBroadcaster( &rBroadcaster ), pListener( &rLst )
31 : {
32 14246 : pNext = rLst.pBrdCastLst;
33 14246 : rLst.pBrdCastLst = this;
34 :
35 14246 : if( pBroadcaster->pRoot )
36 : {
37 : // set ever behind the root
38 3716 : pRight = pBroadcaster->pRoot->pRight;
39 3716 : pBroadcaster->pRoot->pRight = this;
40 3716 : this->pLeft = pBroadcaster->pRoot;
41 3716 : if( pRight )
42 668 : pRight->pLeft = this;
43 : }
44 : else
45 10530 : pBroadcaster->pRoot = this;
46 14246 : }
47 :
48 13924 : SvtListenerBase::~SvtListenerBase()
49 : {
50 13924 : SvtListenerBase *pR = pRight, *pL = pLeft;
51 13924 : if( pBroadcaster->pRoot )
52 13924 : pBroadcaster->pRoot = pL ? pL : pR;
53 :
54 13924 : if( pL )
55 1934 : pL->pRight = pR;
56 13924 : if( pR )
57 2102 : pR->pLeft = pL;
58 :
59 13924 : SvtListenerIter::RemoveListener( *this, pR );
60 :
61 13924 : if( !pBroadcaster->pRoot )
62 10252 : pBroadcaster->ListenersGone();
63 13924 : }
64 :
65 :
66 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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