1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/atk/nsMaiInterfaceTable.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,320 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "InterfaceInitFuncs.h"
1.11 +
1.12 +#include "Accessible-inl.h"
1.13 +#include "AccessibleWrap.h"
1.14 +#include "nsAccUtils.h"
1.15 +#include "TableAccessible.h"
1.16 +#include "TableCellAccessible.h"
1.17 +#include "nsMai.h"
1.18 +
1.19 +#include "nsArrayUtils.h"
1.20 +
1.21 +#include "mozilla/Likely.h"
1.22 +
1.23 +using namespace mozilla::a11y;
1.24 +
1.25 +extern "C" {
1.26 +static AtkObject*
1.27 +refAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx)
1.28 +{
1.29 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.30 + if (!accWrap || aRowIdx < 0 || aColIdx < 0)
1.31 + return nullptr;
1.32 +
1.33 + Accessible* cell = accWrap->AsTable()->CellAt(aRowIdx, aColIdx);
1.34 + if (!cell)
1.35 + return nullptr;
1.36 +
1.37 + AtkObject* cellAtkObj = AccessibleWrap::GetAtkObject(cell);
1.38 + if (cellAtkObj)
1.39 + g_object_ref(cellAtkObj);
1.40 +
1.41 + return cellAtkObj;
1.42 +}
1.43 +
1.44 +static gint
1.45 +getIndexAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx)
1.46 +{
1.47 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.48 + if (!accWrap || aRowIdx < 0 || aColIdx < 0)
1.49 + return -1;
1.50 +
1.51 + return static_cast<gint>(accWrap->AsTable()->CellIndexAt(aRowIdx, aColIdx));
1.52 +}
1.53 +
1.54 +static gint
1.55 +getColumnAtIndexCB(AtkTable *aTable, gint aIdx)
1.56 +{
1.57 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.58 + if (!accWrap || aIdx < 0)
1.59 + return -1;
1.60 +
1.61 + return static_cast<gint>(accWrap->AsTable()->ColIndexAt(aIdx));
1.62 +}
1.63 +
1.64 +static gint
1.65 +getRowAtIndexCB(AtkTable *aTable, gint aIdx)
1.66 +{
1.67 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.68 + if (!accWrap || aIdx < 0)
1.69 + return -1;
1.70 +
1.71 + return static_cast<gint>(accWrap->AsTable()->RowIndexAt(aIdx));
1.72 +}
1.73 +
1.74 +static gint
1.75 +getColumnCountCB(AtkTable *aTable)
1.76 +{
1.77 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.78 + if (!accWrap)
1.79 + return -1;
1.80 +
1.81 + return static_cast<gint>(accWrap->AsTable()->ColCount());
1.82 +}
1.83 +
1.84 +static gint
1.85 +getRowCountCB(AtkTable *aTable)
1.86 +{
1.87 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.88 + if (!accWrap)
1.89 + return -1;
1.90 +
1.91 + return static_cast<gint>(accWrap->AsTable()->RowCount());
1.92 +}
1.93 +
1.94 +static gint
1.95 +getColumnExtentAtCB(AtkTable *aTable, gint aRowIdx, gint aColIdx)
1.96 +{
1.97 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.98 + if (!accWrap || aRowIdx < 0 || aColIdx < 0)
1.99 + return -1;
1.100 +
1.101 + return static_cast<gint>(accWrap->AsTable()->ColExtentAt(aRowIdx, aColIdx));
1.102 +}
1.103 +
1.104 +static gint
1.105 +getRowExtentAtCB(AtkTable *aTable, gint aRowIdx, gint aColIdx)
1.106 +{
1.107 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.108 + if (!accWrap)
1.109 + return -1;
1.110 +
1.111 + return static_cast<gint>(accWrap->AsTable()->RowExtentAt(aRowIdx, aColIdx));
1.112 +}
1.113 +
1.114 +static AtkObject*
1.115 +getCaptionCB(AtkTable* aTable)
1.116 +{
1.117 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.118 + if (!accWrap)
1.119 + return nullptr;
1.120 +
1.121 + Accessible* caption = accWrap->AsTable()->Caption();
1.122 + return caption ? AccessibleWrap::GetAtkObject(caption) : nullptr;
1.123 +}
1.124 +
1.125 +static const gchar*
1.126 +getColumnDescriptionCB(AtkTable *aTable, gint aColumn)
1.127 +{
1.128 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.129 + if (!accWrap)
1.130 + return nullptr;
1.131 +
1.132 + nsAutoString autoStr;
1.133 + accWrap->AsTable()->ColDescription(aColumn, autoStr);
1.134 +
1.135 + return AccessibleWrap::ReturnString(autoStr);
1.136 +}
1.137 +
1.138 +static AtkObject*
1.139 +getColumnHeaderCB(AtkTable *aTable, gint aColIdx)
1.140 +{
1.141 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.142 + if (!accWrap)
1.143 + return nullptr;
1.144 +
1.145 + Accessible* cell = accWrap->AsTable()->CellAt(0, aColIdx);
1.146 + if (!cell)
1.147 + return nullptr;
1.148 +
1.149 + // If the cell at the first row is column header then assume it is column
1.150 + // header for all rows,
1.151 + if (cell->Role() == roles::COLUMNHEADER)
1.152 + return AccessibleWrap::GetAtkObject(cell);
1.153 +
1.154 + // otherwise get column header for the data cell at the first row.
1.155 + TableCellAccessible* tableCell = cell->AsTableCell();
1.156 + if (!tableCell)
1.157 + return nullptr;
1.158 +
1.159 + nsAutoTArray<Accessible*, 10> headerCells;
1.160 + tableCell->ColHeaderCells(&headerCells);
1.161 + if (headerCells.IsEmpty())
1.162 + return nullptr;
1.163 +
1.164 + return AccessibleWrap::GetAtkObject(headerCells[0]);
1.165 +}
1.166 +
1.167 +static const gchar*
1.168 +getRowDescriptionCB(AtkTable *aTable, gint aRow)
1.169 +{
1.170 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.171 + if (!accWrap)
1.172 + return nullptr;
1.173 +
1.174 + nsAutoString autoStr;
1.175 + accWrap->AsTable()->RowDescription(aRow, autoStr);
1.176 +
1.177 + return AccessibleWrap::ReturnString(autoStr);
1.178 +}
1.179 +
1.180 +static AtkObject*
1.181 +getRowHeaderCB(AtkTable *aTable, gint aRowIdx)
1.182 +{
1.183 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.184 + if (!accWrap)
1.185 + return nullptr;
1.186 +
1.187 + Accessible* cell = accWrap->AsTable()->CellAt(aRowIdx, 0);
1.188 + if (!cell)
1.189 + return nullptr;
1.190 +
1.191 + // If the cell at the first column is row header then assume it is row
1.192 + // header for all columns,
1.193 + if (cell->Role() == roles::ROWHEADER)
1.194 + return AccessibleWrap::GetAtkObject(cell);
1.195 +
1.196 + // otherwise get row header for the data cell at the first column.
1.197 + TableCellAccessible* tableCell = cell->AsTableCell();
1.198 + if (!tableCell)
1.199 + return nullptr;
1.200 +
1.201 + nsAutoTArray<Accessible*, 10> headerCells;
1.202 + tableCell->RowHeaderCells(&headerCells);
1.203 + if (headerCells.IsEmpty())
1.204 + return nullptr;
1.205 +
1.206 + return AccessibleWrap::GetAtkObject(headerCells[0]);
1.207 +}
1.208 +
1.209 +static AtkObject*
1.210 +getSummaryCB(AtkTable *aTable)
1.211 +{
1.212 + // Neither html:table nor xul:tree nor ARIA grid/tree have an ability to
1.213 + // link an accessible object to specify a summary. There is closes method
1.214 + // in TableAccessible::summary to get a summary as a string which is not
1.215 + // mapped directly to ATK.
1.216 + return nullptr;
1.217 +}
1.218 +
1.219 +static gint
1.220 +getSelectedColumnsCB(AtkTable *aTable, gint** aSelected)
1.221 +{
1.222 + *aSelected = nullptr;
1.223 +
1.224 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.225 + if (!accWrap)
1.226 + return 0;
1.227 +
1.228 + nsAutoTArray<uint32_t, 10> cols;
1.229 + accWrap->AsTable()->SelectedColIndices(&cols);
1.230 + if (cols.IsEmpty())
1.231 + return 0;
1.232 +
1.233 + gint* atkColumns = g_new(gint, cols.Length());
1.234 + if (!atkColumns) {
1.235 + NS_WARNING("OUT OF MEMORY");
1.236 + return 0;
1.237 + }
1.238 +
1.239 + memcpy(atkColumns, cols.Elements(), cols.Length() * sizeof(uint32_t));
1.240 + *aSelected = atkColumns;
1.241 + return cols.Length();
1.242 +}
1.243 +
1.244 +static gint
1.245 +getSelectedRowsCB(AtkTable *aTable, gint **aSelected)
1.246 +{
1.247 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.248 + if (!accWrap)
1.249 + return 0;
1.250 +
1.251 + nsAutoTArray<uint32_t, 10> rows;
1.252 + accWrap->AsTable()->SelectedRowIndices(&rows);
1.253 +
1.254 + gint* atkRows = g_new(gint, rows.Length());
1.255 + if (!atkRows) {
1.256 + NS_WARNING("OUT OF MEMORY");
1.257 + return 0;
1.258 + }
1.259 +
1.260 + memcpy(atkRows, rows.Elements(), rows.Length() * sizeof(uint32_t));
1.261 + *aSelected = atkRows;
1.262 + return rows.Length();
1.263 +}
1.264 +
1.265 +static gboolean
1.266 +isColumnSelectedCB(AtkTable *aTable, gint aColIdx)
1.267 +{
1.268 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.269 + if (!accWrap)
1.270 + return FALSE;
1.271 +
1.272 + return static_cast<gboolean>(accWrap->AsTable()->IsColSelected(aColIdx));
1.273 +}
1.274 +
1.275 +static gboolean
1.276 +isRowSelectedCB(AtkTable *aTable, gint aRowIdx)
1.277 +{
1.278 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.279 + if (!accWrap)
1.280 + return FALSE;
1.281 +
1.282 + return static_cast<gboolean>(accWrap->AsTable()->IsRowSelected(aRowIdx));
1.283 +}
1.284 +
1.285 +static gboolean
1.286 +isCellSelectedCB(AtkTable *aTable, gint aRowIdx, gint aColIdx)
1.287 +{
1.288 + AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
1.289 + if (!accWrap)
1.290 + return FALSE;
1.291 +
1.292 + return static_cast<gboolean>(accWrap->AsTable()->
1.293 + IsCellSelected(aRowIdx, aColIdx));
1.294 +}
1.295 +}
1.296 +
1.297 +void
1.298 +tableInterfaceInitCB(AtkTableIface* aIface)
1.299 +{
1.300 + NS_ASSERTION(aIface, "no interface!");
1.301 + if (MOZ_UNLIKELY(!aIface))
1.302 + return;
1.303 +
1.304 + aIface->ref_at = refAtCB;
1.305 + aIface->get_index_at = getIndexAtCB;
1.306 + aIface->get_column_at_index = getColumnAtIndexCB;
1.307 + aIface->get_row_at_index = getRowAtIndexCB;
1.308 + aIface->get_n_columns = getColumnCountCB;
1.309 + aIface->get_n_rows = getRowCountCB;
1.310 + aIface->get_column_extent_at = getColumnExtentAtCB;
1.311 + aIface->get_row_extent_at = getRowExtentAtCB;
1.312 + aIface->get_caption = getCaptionCB;
1.313 + aIface->get_column_description = getColumnDescriptionCB;
1.314 + aIface->get_column_header = getColumnHeaderCB;
1.315 + aIface->get_row_description = getRowDescriptionCB;
1.316 + aIface->get_row_header = getRowHeaderCB;
1.317 + aIface->get_summary = getSummaryCB;
1.318 + aIface->get_selected_columns = getSelectedColumnsCB;
1.319 + aIface->get_selected_rows = getSelectedRowsCB;
1.320 + aIface->is_column_selected = isColumnSelectedCB;
1.321 + aIface->is_row_selected = isRowSelectedCB;
1.322 + aIface->is_selected = isCellSelectedCB;
1.323 +}
