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        7019 : SvtListenerBase::SvtListenerBase( SvtListener& rLst,
      28             :                                   SvtBroadcaster& rBroadcaster )
      29             :     : pLeft( 0 ), pRight( 0 ),
      30        7019 :     pBroadcaster( &rBroadcaster ), pListener( &rLst )
      31             : {
      32        7019 :     pNext = rLst.pBrdCastLst;
      33        7019 :     rLst.pBrdCastLst = this;
      34             : 
      35        7019 :     if( pBroadcaster->pRoot )
      36             :     {
      37             :         // set ever behind the root
      38        1815 :         pRight = pBroadcaster->pRoot->pRight;
      39        1815 :         pBroadcaster->pRoot->pRight = this;
      40        1815 :         this->pLeft = pBroadcaster->pRoot;
      41        1815 :         if( pRight )
      42         334 :             pRight->pLeft = this;
      43             :     }
      44             :     else
      45        5204 :         pBroadcaster->pRoot = this;
      46        7019 : }
      47             : 
      48        6863 : SvtListenerBase::~SvtListenerBase()
      49             : {
      50        6863 :     SvtListenerBase *pR = pRight, *pL = pLeft;
      51        6863 :     if( pBroadcaster->pRoot )
      52        6863 :         pBroadcaster->pRoot = pL ? pL : pR;
      53             : 
      54        6863 :     if( pL )
      55         924 :         pL->pRight = pR;
      56        6863 :     if( pR )
      57        1051 :         pR->pLeft = pL;
      58             : 
      59        6863 :     SvtListenerIter::RemoveListener( *this, pR );
      60             : 
      61        6863 :     if( !pBroadcaster->pRoot )
      62        5070 :         pBroadcaster->ListenersGone();
      63        6863 : }
      64             : 
      65             : 
      66             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */