unotools/source/config/options.cxx

   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 <sal/config.h>
  21 #include <unotools/options.hxx>
  22
  23 #include <algorithm>
  24
  25 using utl::detail::Options;
  26 using utl::ConfigurationBroadcaster;
  27
  28 utl::ConfigurationListener::~ConfigurationListener() {}
  29
  30 ConfigurationBroadcaster::ConfigurationBroadcaster()
  31 : m_nBroadcastBlocked( 0 )
  32 , m_nBlockedHint( ConfigurationHints::NONE )
  33 {
  34 }
  35
  36 ConfigurationBroadcaster::ConfigurationBroadcaster(ConfigurationBroadcaster const & rSource)
  37 : mpList( rSource.mpList ? new IMPL_ConfigurationListenerList(*rSource.mpList) : nullptr )
  38 , m_nBroadcastBlocked( rSource.m_nBroadcastBlocked )
  39 , m_nBlockedHint( rSource.m_nBlockedHint )
  40 {
  41 }
  42
  43 ConfigurationBroadcaster::~ConfigurationBroadcaster()
  44 {
  45 }
  46
  47 ConfigurationBroadcaster & ConfigurationBroadcaster::operator =(
  48     ConfigurationBroadcaster const & other)
  49 {
  50     if (&other != this) {
  51         mpList.reset(
  52             other.mpList == nullptr ? nullptr : new IMPL_ConfigurationListenerList(*other.mpList));
  53         m_nBroadcastBlocked = other.m_nBroadcastBlocked;
  54         m_nBlockedHint = other.m_nBlockedHint;
  55     }
  56     return *this;
  57 }
  58
  59 void ConfigurationBroadcaster::AddListener( utl::ConfigurationListener* pListener )
  60 {
  61     if ( !mpList )
  62         mpList.reset(new IMPL_ConfigurationListenerList);
  63     mpList->push_back( pListener );
  64 }
  65
  66 void ConfigurationBroadcaster::RemoveListener( utl::ConfigurationListener const * pListener )
  67 {
  68     if ( mpList ) {
  69         auto it = std::find(mpList->begin(), mpList->end(), pListener);
  70         if ( it != mpList->end() )
  71             mpList->erase( it );
  72     }
  73 }
  74
  75 void ConfigurationBroadcaster::NotifyListeners( ConfigurationHints nHint )
  76 {
  77     if ( m_nBroadcastBlocked )
  78         m_nBlockedHint |= nHint;
  79     else
  80     {
  81         nHint |= m_nBlockedHint;
  82         m_nBlockedHint = ConfigurationHints::NONE;
  83         if ( mpList ) {
  84             for ( size_t n = 0; n < mpList->size(); n++ )
  85                 (*mpList)[ n ]->ConfigurationChanged( this, nHint );
  86         }
  87     }
  88 }
  89
  90 void ConfigurationBroadcaster::BlockBroadcasts( bool bBlock )
  91 {
  92     if ( bBlock )
  93         ++m_nBroadcastBlocked;
  94     else if ( m_nBroadcastBlocked )
  95     {
  96         if ( --m_nBroadcastBlocked == 0 )
  97             NotifyListeners( ConfigurationHints::NONE );
  98     }
  99 }
 100
 101 Options::Options()
 102 {
 103 }
 104
 105 Options::~Options()
 106 {
 107 }
 108
 109 void Options::ConfigurationChanged( ConfigurationBroadcaster*, ConfigurationHints nHint )
 110 {
 111     NotifyListeners( nHint );
 112 }
 113
 114 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */