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/*
* Copyright (C) 2008 Nuanti Ltd.
* Copyright (C) 2009 Jan Alonzo
* Copyright (C) 2009, 2010, 2011, 2012 Igalia S.L.
*
* Portions from Mozilla a11y, copyright as follows:
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Sun Microsystems, Inc.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "WebKitAccessibleInterfaceTable.h"
#if HAVE(ACCESSIBILITY)
#include "AccessibilityListBox.h"
#include "AccessibilityObject.h"
#include "AccessibilityTable.h"
#include "AccessibilityTableCell.h"
#include "HTMLTableCaptionElement.h"
#include "HTMLTableElement.h"
#include "RenderElement.h"
#include "WebKitAccessible.h"
#include "WebKitAccessibleInterfaceText.h"
#include "WebKitAccessibleUtil.h"
using namespace WebCore;
static AccessibilityObject* core(AtkTable* table)
{
if (!WEBKIT_IS_ACCESSIBLE(table))
return nullptr;
return &webkitAccessibleGetAccessibilityObject(WEBKIT_ACCESSIBLE(table));
}
static AccessibilityTableCell* cell(AtkTable* table, guint row, guint column)
{
AccessibilityObject* accTable = core(table);
if (is<AccessibilityTable>(*accTable))
return downcast<AccessibilityTable>(*accTable).cellForColumnAndRow(column, row);
return nullptr;
}
static gint cellIndex(AccessibilityTableCell* axCell, AccessibilityTable* axTable)
{
// Calculate the cell's index as if we had a traditional Gtk+ table in
// which cells are all direct children of the table, arranged row-first.
AccessibilityObject::AccessibilityChildrenVector allCells;
axTable->cells(allCells);
AccessibilityObject::AccessibilityChildrenVector::iterator position;
position = std::find(allCells.begin(), allCells.end(), axCell);
if (position == allCells.end())
return -1;
return position - allCells.begin();
}
static AccessibilityTableCell* cellAtIndex(AtkTable* table, gint index)
{
AccessibilityObject* accTable = core(table);
if (is<AccessibilityTable>(*accTable)) {
AccessibilityObject::AccessibilityChildrenVector allCells;
downcast<AccessibilityTable>(*accTable).cells(allCells);
if (0 <= index && static_cast<unsigned>(index) < allCells.size())
return downcast<AccessibilityTableCell>(allCells[index].get());
}
return nullptr;
}
static AtkObject* webkitAccessibleTableRefAt(AtkTable* table, gint row, gint column)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AccessibilityTableCell* axCell = cell(table, row, column);
if (!axCell)
return 0;
auto* cell = axCell->wrapper();
if (!cell)
return 0;
// This method transfers full ownership over the returned
// AtkObject, so an extra reference is needed here.
return ATK_OBJECT(g_object_ref(cell));
}
static gint webkitAccessibleTableGetIndexAt(AtkTable* table, gint row, gint column)
{
g_return_val_if_fail(ATK_TABLE(table), -1);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), -1);
AccessibilityTableCell* axCell = cell(table, row, column);
AccessibilityTable* axTable = downcast<AccessibilityTable>(core(table));
return cellIndex(axCell, axTable);
}
static gint webkitAccessibleTableGetColumnAtIndex(AtkTable* table, gint index)
{
g_return_val_if_fail(ATK_TABLE(table), -1);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), -1);
AccessibilityTableCell* axCell = cellAtIndex(table, index);
if (axCell) {
std::pair<unsigned, unsigned> columnRange;
axCell->columnIndexRange(columnRange);
return columnRange.first;
}
return -1;
}
static gint webkitAccessibleTableGetRowAtIndex(AtkTable* table, gint index)
{
g_return_val_if_fail(ATK_TABLE(table), -1);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), -1);
AccessibilityTableCell* axCell = cellAtIndex(table, index);
if (axCell) {
std::pair<unsigned, unsigned> rowRange;
axCell->rowIndexRange(rowRange);
return rowRange.first;
}
return -1;
}
static gint webkitAccessibleTableGetNColumns(AtkTable* table)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AccessibilityObject* accTable = core(table);
if (!is<AccessibilityTable>(*accTable))
return 0;
if (int columnCount = downcast<AccessibilityTable>(*accTable).axColumnCount())
return columnCount;
return downcast<AccessibilityTable>(*accTable).columnCount();
}
static gint webkitAccessibleTableGetNRows(AtkTable* table)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AccessibilityObject* accTable = core(table);
if (!is<AccessibilityTable>(*accTable))
return 0;
if (int rowCount = downcast<AccessibilityTable>(*accTable).axRowCount())
return rowCount;
return downcast<AccessibilityTable>(*accTable).rowCount();
}
static gint webkitAccessibleTableGetColumnExtentAt(AtkTable* table, gint row, gint column)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AccessibilityTableCell* axCell = cell(table, row, column);
if (axCell) {
std::pair<unsigned, unsigned> columnRange;
axCell->columnIndexRange(columnRange);
return columnRange.second;
}
return 0;
}
static gint webkitAccessibleTableGetRowExtentAt(AtkTable* table, gint row, gint column)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AccessibilityTableCell* axCell = cell(table, row, column);
if (axCell) {
std::pair<unsigned, unsigned> rowRange;
axCell->rowIndexRange(rowRange);
return rowRange.second;
}
return 0;
}
static AtkObject* webkitAccessibleTableGetColumnHeader(AtkTable* table, gint column)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AccessibilityObject* accTable = core(table);
if (is<AccessibilityTable>(*accTable)) {
AccessibilityObject::AccessibilityChildrenVector columnHeaders;
downcast<AccessibilityTable>(*accTable).columnHeaders(columnHeaders);
for (const auto& columnHeader : columnHeaders) {
std::pair<unsigned, unsigned> columnRange;
downcast<AccessibilityTableCell>(*columnHeader).columnIndexRange(columnRange);
if (columnRange.first <= static_cast<unsigned>(column) && static_cast<unsigned>(column) < columnRange.first + columnRange.second)
return ATK_OBJECT(columnHeader->wrapper());
}
}
return nullptr;
}
static AtkObject* webkitAccessibleTableGetRowHeader(AtkTable* table, gint row)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AccessibilityObject* accTable = core(table);
if (is<AccessibilityTable>(*accTable)) {
AccessibilityObject::AccessibilityChildrenVector rowHeaders;
downcast<AccessibilityTable>(*accTable).rowHeaders(rowHeaders);
for (const auto& rowHeader : rowHeaders) {
std::pair<unsigned, unsigned> rowRange;
downcast<AccessibilityTableCell>(*rowHeader).rowIndexRange(rowRange);
if (rowRange.first <= static_cast<unsigned>(row) && static_cast<unsigned>(row) < rowRange.first + rowRange.second)
return ATK_OBJECT(rowHeader->wrapper());
}
}
return nullptr;
}
static AtkObject* webkitAccessibleTableGetCaption(AtkTable* table)
{
g_return_val_if_fail(ATK_TABLE(table), nullptr);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), nullptr);
AccessibilityObject* accTable = core(table);
if (accTable->isAccessibilityRenderObject()) {
Node* node = accTable->node();
if (is<HTMLTableElement>(node)) {
auto caption = downcast<HTMLTableElement>(*node).caption();
if (caption)
return ATK_OBJECT(AccessibilityObject::firstAccessibleObjectFromNode(caption->renderer()->element())->wrapper());
}
}
return nullptr;
}
static const gchar* webkitAccessibleTableGetColumnDescription(AtkTable* table, gint column)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AtkObject* columnHeader = atk_table_get_column_header(table, column);
if (columnHeader && ATK_IS_TEXT(columnHeader))
return atk_text_get_text(ATK_TEXT(columnHeader), 0, -1);
return 0;
}
static const gchar* webkitAccessibleTableGetRowDescription(AtkTable* table, gint row)
{
g_return_val_if_fail(ATK_TABLE(table), 0);
returnValIfWebKitAccessibleIsInvalid(WEBKIT_ACCESSIBLE(table), 0);
AtkObject* rowHeader = atk_table_get_row_header(table, row);
if (rowHeader && ATK_IS_TEXT(rowHeader))
return atk_text_get_text(ATK_TEXT(rowHeader), 0, -1);
return 0;
}
void webkitAccessibleTableInterfaceInit(AtkTableIface* iface)
{
iface->ref_at = webkitAccessibleTableRefAt;
iface->get_index_at = webkitAccessibleTableGetIndexAt;
iface->get_column_at_index = webkitAccessibleTableGetColumnAtIndex;
iface->get_row_at_index = webkitAccessibleTableGetRowAtIndex;
iface->get_n_columns = webkitAccessibleTableGetNColumns;
iface->get_n_rows = webkitAccessibleTableGetNRows;
iface->get_column_extent_at = webkitAccessibleTableGetColumnExtentAt;
iface->get_row_extent_at = webkitAccessibleTableGetRowExtentAt;
iface->get_column_header = webkitAccessibleTableGetColumnHeader;
iface->get_row_header = webkitAccessibleTableGetRowHeader;
iface->get_caption = webkitAccessibleTableGetCaption;
iface->get_column_description = webkitAccessibleTableGetColumnDescription;
iface->get_row_description = webkitAccessibleTableGetRowDescription;
}
#endif