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       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                 :      22305 : SvtListenerBase::SvtListenerBase( SvtListener& rLst,
      28                 :            :                                   SvtBroadcaster& rBroadcaster )
      29                 :            :     : pLeft( 0 ), pRight( 0 ),
      30                 :      22305 :     pBroadcaster( &rBroadcaster ), pListener( &rLst )
      31                 :            : {
      32                 :      22305 :     pNext = rLst.pBrdCastLst;
      33                 :      22305 :     rLst.pBrdCastLst = this;
      34                 :            : 
      35         [ +  + ]:      22305 :     if( pBroadcaster->pRoot )
      36                 :            :     {
      37                 :            :         // set ever behind the root
      38                 :       9327 :         pRight = pBroadcaster->pRoot->pRight;
      39                 :       9327 :         pBroadcaster->pRoot->pRight = this;
      40                 :       9327 :         this->pLeft = pBroadcaster->pRoot;
      41         [ +  + ]:       9327 :         if( pRight )
      42                 :       1734 :             pRight->pLeft = this;
      43                 :            :     }
      44                 :            :     else
      45                 :      12978 :         pBroadcaster->pRoot = this;
      46                 :      22305 : }
      47                 :            : 
      48                 :      21890 : SvtListenerBase::~SvtListenerBase()
      49                 :            : {
      50                 :      21890 :     SvtListenerBase *pR = pRight, *pL = pLeft;
      51         [ +  - ]:      21890 :     if( pBroadcaster->pRoot )
      52         [ +  + ]:      21890 :         pBroadcaster->pRoot = pL ? pL : pR;
      53                 :            : 
      54         [ +  + ]:      21890 :     if( pL )
      55                 :       4787 :         pL->pRight = pR;
      56         [ +  + ]:      21890 :     if( pR )
      57                 :       5410 :         pR->pLeft = pL;
      58                 :            : 
      59                 :      21890 :     SvtListenerIter::RemoveListener( *this, pR );
      60                 :            : 
      61         [ +  + ]:      21890 :     if( !pBroadcaster->pRoot )
      62                 :      12643 :         pBroadcaster->ListenersGone();
      63                 :      21890 : }
      64                 :            : 
      65                 :            : 
      66                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */