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             : #include <svl/listener.hxx>
      21             : #include <svl/broadcast.hxx>
      22             : 
      23          56 : SvtListener::QueryBase::QueryBase( sal_uInt16 nId ) : mnId(nId) {}
      24          56 : SvtListener::QueryBase::~QueryBase() {}
      25             : 
      26         109 : sal_uInt16 SvtListener::QueryBase::getId() const
      27             : {
      28         109 :     return mnId;
      29             : }
      30             : 
      31       15853 : SvtListener::SvtListener() {}
      32             : 
      33           0 : SvtListener::SvtListener( const SvtListener &r ) :
      34           0 :     maBroadcasters(r.maBroadcasters) {}
      35             : 
      36       30368 : SvtListener::~SvtListener()
      37             : {
      38             :     // Unregister itself from all broadcasters it's listening to.
      39       15184 :     EndListeningAll();
      40       15184 : }
      41             : 
      42             : // registeres at a specific SvtBroadcaster
      43             : 
      44       21609 : bool SvtListener::StartListening( SvtBroadcaster& rBroadcaster )
      45             : {
      46             :     std::pair<BroadcastersType::iterator, bool> r =
      47       21609 :         maBroadcasters.insert(&rBroadcaster);
      48       21609 :     if (r.second)
      49             :     {
      50             :         // This is a new broadcaster.
      51       20445 :         rBroadcaster.Add(this);
      52             :     }
      53       21609 :     return r.second;
      54             : }
      55             : 
      56        7342 : bool SvtListener::EndListening( SvtBroadcaster& rBroadcaster )
      57             : {
      58        7342 :     BroadcastersType::iterator it = maBroadcasters.find(&rBroadcaster);
      59        7342 :     if (it == maBroadcasters.end())
      60             :         // Not listening to this broadcaster.
      61        1519 :         return false;
      62             : 
      63        5823 :     rBroadcaster.Remove(this);
      64        5823 :     maBroadcasters.erase(it);
      65        5823 :     return true;
      66             : }
      67             : 
      68       19297 : void SvtListener::EndListeningAll()
      69             : {
      70       19297 :     BroadcastersType::iterator it = maBroadcasters.begin(), itEnd = maBroadcasters.end();
      71       33741 :     for (; it != itEnd; ++it)
      72             :     {
      73       14444 :         SvtBroadcaster& rBC = **it;
      74       14444 :         rBC.Remove(this);
      75             :     }
      76       19297 :     maBroadcasters.clear();
      77       19297 : }
      78             : 
      79             : 
      80           0 : bool SvtListener::IsListening( SvtBroadcaster& rBroadcaster ) const
      81             : {
      82           0 :     return maBroadcasters.count(&rBroadcaster) > 0;
      83             : }
      84             : 
      85         186 : void SvtListener::CopyAllBroadcasters( const SvtListener& r )
      86             : {
      87         186 :     BroadcastersType aCopy(r.maBroadcasters);
      88         186 :     maBroadcasters.swap(aCopy);
      89         186 :     BroadcastersType::iterator it = maBroadcasters.begin(), itEnd = maBroadcasters.end();
      90         334 :     for (; it != itEnd; ++it)
      91             :     {
      92         148 :         SvtBroadcaster* p = *it;
      93         148 :         p->Add(this);
      94         186 :     }
      95         186 : }
      96             : 
      97        2379 : bool SvtListener::HasBroadcaster() const
      98             : {
      99        2379 :     return !maBroadcasters.empty();
     100             : }
     101             : 
     102           0 : void SvtListener::Notify( const SfxHint& /*rHint*/ ) {}
     103             : 
     104           0 : void SvtListener::Query( QueryBase& /*rQuery*/ ) const {}
     105             : 
     106             : 
     107             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */