vcl/unx/gtk/a11y/atkselection.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 "atkwrapper.hxx"
  21
  22 #include <com/sun/star/accessibility/XAccessibleSelection.hpp>
  23
  24 #include <stdio.h>
  25
  26 using namespace ::com::sun::star;
  27
  28 static accessibility::XAccessibleSelection*
  29     getSelection( AtkSelection *pSelection ) throw (uno::RuntimeException)
  30 {
  31     AtkObjectWrapper *pWrap = ATK_OBJECT_WRAPPER( pSelection );
  32     if( pWrap )
  33     {
  34         if( !pWrap->mpSelection && pWrap->mpContext )
  35         {
  36             uno::Any any = pWrap->mpContext->queryInterface( cppu::UnoType<accessibility::XAccessibleSelection>::get() );
  37             pWrap->mpSelection = static_cast< accessibility::XAccessibleSelection * > (any.pReserved);
  38             pWrap->mpSelection->acquire();
  39         }
  40
  41         return pWrap->mpSelection;
  42     }
  43
  44     return NULL;
  45 }
  46
  47 extern "C" {
  48
  49 static gboolean
  50 selection_add_selection( AtkSelection *selection,
  51                          gint          i )
  52 {
  53     try {
  54         accessibility::XAccessibleSelection* pSelection = getSelection( selection );
  55         if( pSelection )
  56         {
  57             pSelection->selectAccessibleChild( i );
  58             return TRUE;
  59         }
  60     }
  61     catch(const uno::Exception&) {
  62         g_warning( "Exception in selectAccessibleChild()" );
  63     }
  64
  65     return FALSE;
  66 }
  67
  68 static gboolean
  69 selection_clear_selection( AtkSelection *selection )
  70 {
  71     try {
  72         accessibility::XAccessibleSelection* pSelection = getSelection( selection );
  73         if( pSelection )
  74         {
  75             pSelection->clearAccessibleSelection();
  76             return TRUE;
  77         }
  78     }
  79     catch(const uno::Exception&) {
  80         g_warning( "Exception in selectAccessibleChild()" );
  81     }
  82
  83     return FALSE;
  84 }
  85
  86 static AtkObject*
  87 selection_ref_selection( AtkSelection *selection,
  88                          gint          i )
  89 {
  90     try {
  91         accessibility::XAccessibleSelection* pSelection = getSelection( selection );
  92         if( pSelection )
  93             return atk_object_wrapper_ref( pSelection->getSelectedAccessibleChild( i ) );
  94     }
  95     catch(const uno::Exception&) {
  96         g_warning( "Exception in getSelectedAccessibleChild()" );
  97     }
  98
  99     return NULL;
 100 }
 101
 102 static gint
 103 selection_get_selection_count( AtkSelection   *selection)
 104 {
 105     try {
 106         accessibility::XAccessibleSelection* pSelection = getSelection( selection );
 107         if( pSelection )
 108             return pSelection->getSelectedAccessibleChildCount();
 109     }
 110     catch(const uno::Exception&) {
 111         g_warning( "Exception in getSelectedAccessibleChildCount()" );
 112     }
 113
 114     return -1;
 115 }
 116
 117 static gboolean
 118 selection_is_child_selected( AtkSelection   *selection,
 119                               gint           i)
 120 {
 121     try {
 122         accessibility::XAccessibleSelection* pSelection = getSelection( selection );
 123         if( pSelection )
 124             return pSelection->isAccessibleChildSelected( i );
 125     }
 126     catch(const uno::Exception&) {
 127         g_warning( "Exception in getSelectedAccessibleChildCount()" );
 128     }
 129
 130     return FALSE;
 131 }
 132
 133 static gboolean
 134 selection_remove_selection( AtkSelection *selection,
 135                             gint           i )
 136 {
 137     try {
 138         accessibility::XAccessibleSelection* pSelection = getSelection( selection );
 139         if( pSelection )
 140         {
 141             pSelection->deselectAccessibleChild( i );
 142             return TRUE;
 143         }
 144     }
 145     catch(const uno::Exception&) {
 146         g_warning( "Exception in getSelectedAccessibleChildCount()" );
 147     }
 148
 149     return FALSE;
 150 }
 151
 152 static gboolean
 153 selection_select_all_selection( AtkSelection   *selection)
 154 {
 155     try {
 156         accessibility::XAccessibleSelection* pSelection = getSelection( selection );
 157         if( pSelection )
 158         {
 159             pSelection->selectAllAccessibleChildren();
 160             return TRUE;
 161         }
 162     }
 163     catch(const uno::Exception&) {
 164         g_warning( "Exception in getSelectedAccessibleChildCount()" );
 165     }
 166
 167     return FALSE;
 168 }
 169
 170 } // extern "C"
 171
 172 void
 173 selectionIfaceInit( AtkSelectionIface *iface)
 174 {
 175   g_return_if_fail (iface != NULL);
 176
 177   iface->add_selection = selection_add_selection;
 178   iface->clear_selection = selection_clear_selection;
 179   iface->ref_selection = selection_ref_selection;
 180   iface->get_selection_count = selection_get_selection_count;
 181   iface->is_child_selected = selection_is_child_selected;
 182   iface->remove_selection = selection_remove_selection;
 183   iface->select_all_selection = selection_select_all_selection;
 184 }
 185
 186 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */