sw/source/core/access/accfrmobjslist.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 "accfrmobjslist.hxx"
  21 #include <accmap.hxx>
  22 #include "acccontext.hxx"
  23
  24 #include <pagefrm.hxx>
  25 #include <sortedobjs.hxx>
  26 #include <anchoredobject.hxx>
  27
  28 using namespace ::sw::access;
  29
  30 SwAccessibleChildSList_const_iterator::SwAccessibleChildSList_const_iterator(
  31     const SwAccessibleChildSList& rLst,
  32     SwAccessibleMap& rAccMap )
  33     : m_rList( rLst ),
  34       m_aCurr( m_rList.GetFrame().GetLower() ),
  35       m_nNextObj( 0 )
  36 {
  37     if( !m_aCurr.GetSwFrame() )
  38     {
  39         const SwFrame& rFrame = m_rList.GetFrame();
  40         if( rFrame.IsPageFrame() )
  41         {
  42             const SwPageFrame& rPgFrame = static_cast< const SwPageFrame& >( rFrame );
  43             const SwSortedObjs *pObjs = rPgFrame.GetSortedObjs();
  44             if( pObjs && pObjs->size() )
  45             {
  46                 m_aCurr = (*pObjs)[m_nNextObj++]->GetDrawObj();
  47             }
  48         }
  49         else if( rFrame.IsTextFrame() )
  50         {
  51             const SwSortedObjs *pObjs = rFrame.GetDrawObjs();
  52             if ( pObjs && pObjs->size() )
  53             {
  54                 m_aCurr = (*pObjs)[m_nNextObj++]->GetDrawObj();
  55                 while( m_aCurr.IsValid() && !m_aCurr.IsBoundAsChar() )
  56                 {
  57                     m_aCurr = (m_nNextObj < pObjs->size())
  58                             ? (*pObjs)[m_nNextObj++]->GetDrawObj()
  59                             : static_cast< const SdrObject *>( nullptr );
  60                 }
  61             }
  62             if ( !m_aCurr.IsValid() )
  63             {
  64                 ::rtl::Reference < SwAccessibleContext > xAccImpl =
  65                                     rAccMap.GetContextImpl( &rFrame, false );
  66                 if( xAccImpl.is() )
  67                 {
  68                     SwAccessibleContext* pAccImpl = xAccImpl.get();
  69                     m_aCurr = SwAccessibleChild( pAccImpl->GetAdditionalAccessibleChild( 0 ) );
  70                     ++m_nNextObj;
  71                 }
  72             }
  73         }
  74     }
  75
  76     if( m_rList.IsVisibleChildrenOnly() )
  77     {
  78         // Find the first visible
  79         while( m_aCurr.IsValid() &&
  80                !m_aCurr.AlwaysIncludeAsChild() &&
  81                !m_aCurr.GetBox( rAccMap ).Overlaps( m_rList.GetVisArea() ) )
  82         {
  83             next();
  84         }
  85     }
  86 }
  87
  88 SwAccessibleChildSList_const_iterator& SwAccessibleChildSList_const_iterator::next()
  89 {
  90     bool bNextTaken( true );
  91     if( m_aCurr.GetDrawObject() || m_aCurr.GetWindow() )
  92     {
  93         bNextTaken = false;
  94     }
  95     else if( m_aCurr.GetSwFrame() )
  96     {
  97         m_aCurr = m_aCurr.GetSwFrame()->GetNext();
  98         if( !m_aCurr.GetSwFrame() )
  99         {
 100             bNextTaken = false;
 101         }
 102     }
 103
 104     if( !bNextTaken )
 105     {
 106         const SwFrame& rFrame = m_rList.GetFrame();
 107         if( rFrame.IsPageFrame() )
 108         {
 109             const SwPageFrame& rPgFrame = static_cast< const SwPageFrame& >( rFrame );
 110             const SwSortedObjs *pObjs = rPgFrame.GetSortedObjs();
 111             m_aCurr = ( pObjs && m_nNextObj < pObjs->size() )
 112                     ? (*pObjs)[m_nNextObj++]->GetDrawObj()
 113                     : static_cast< const SdrObject *>( nullptr );
 114         }
 115         else if( rFrame.IsTextFrame() )
 116         {
 117             const SwSortedObjs* pObjs = rFrame.GetDrawObjs();
 118             const size_t nObjsCount = pObjs ? pObjs->size() : 0;
 119             m_aCurr = ( pObjs && m_nNextObj < nObjsCount )
 120                     ? (*pObjs)[m_nNextObj++]->GetDrawObj()
 121                     : static_cast< const SdrObject *>( nullptr );
 122             while( m_aCurr.IsValid() && !m_aCurr.IsBoundAsChar() )
 123             {
 124                 m_aCurr = ( m_nNextObj < nObjsCount )
 125                         ? (*pObjs)[m_nNextObj++]->GetDrawObj()
 126                         : static_cast< const SdrObject *>( nullptr );
 127             }
 128             if ( !m_aCurr.IsValid() )
 129             {
 130                 ::rtl::Reference < SwAccessibleContext > xAccImpl =
 131                                     m_rList.GetAccMap().GetContextImpl( &rFrame, false );
 132                 if( xAccImpl.is() )
 133                 {
 134                     SwAccessibleContext* pAccImpl = xAccImpl.get();
 135                     m_aCurr = SwAccessibleChild( pAccImpl->GetAdditionalAccessibleChild( m_nNextObj - nObjsCount ) );
 136                     ++m_nNextObj;
 137                 }
 138             }
 139         }
 140     }
 141
 142     return *this;
 143 }
 144
 145 SwAccessibleChildSList_const_iterator& SwAccessibleChildSList_const_iterator::next_visible()
 146 {
 147     next();
 148     while( m_aCurr.IsValid() &&
 149            !m_aCurr.AlwaysIncludeAsChild() &&
 150            !m_aCurr.GetBox( m_rList.GetAccMap() ).Overlaps( m_rList.GetVisArea() ) )
 151     {
 152         next();
 153     }
 154
 155     return *this;
 156 }
 157
 158 SwAccessibleChildSList_const_iterator& SwAccessibleChildSList_const_iterator::operator++()
 159 {
 160     return m_rList.IsVisibleChildrenOnly() ? next_visible() : next();
 161 }
 162
 163 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */