AccessibilityTableCell* AccessibilityTable::cellForColumnAndRow(unsigned column, unsigned row)
{
updateChildrenIfNecessary();
if (column >= columnCount() || row >= rowCount())
return 0;
// Iterate backwards through the rows in case the desired cell has a rowspan and exists in a previous row.
for (unsigned rowIndexCounter = row + 1; rowIndexCounter > 0; --rowIndexCounter) {
unsigned rowIndex = rowIndexCounter - 1;
const auto& children = m_rows[rowIndex]->children();
// Since some cells may have colspans, we have to check the actual range of each
// cell to determine which is the right one.
for (unsigned colIndexCounter = std::min(static_cast<unsigned>(children.size()), column + 1); colIndexCounter > 0; --colIndexCounter) {
unsigned colIndex = colIndexCounter - 1;
AccessibilityObject* child = children[colIndex].get();
ASSERT(child->isTableCell());
if (!child->isTableCell())
continue;
std::pair<unsigned, unsigned> columnRange;
std::pair<unsigned, unsigned> rowRange;
AccessibilityTableCell* tableCellChild = toAccessibilityTableCell(child);
tableCellChild->columnIndexRange(columnRange);
tableCellChild->rowIndexRange(rowRange);
if ((column >= columnRange.first && column < (columnRange.first + columnRange.second))
&& (row >= rowRange.first && row < (rowRange.first + rowRange.second)))
return tableCellChild;
}
}
return 0;
}
void AccessibilityTableCell::columnHeaders(AccessibilityChildrenVector& headers)
{
AccessibilityTable* parent = parentTable();
if (!parent)
return;
std::pair<unsigned, unsigned> rowRange;
rowIndexRange(rowRange);
std::pair<unsigned, unsigned> colRange;
columnIndexRange(colRange);
for (unsigned row = 0; row < rowRange.first; row++) {
AccessibilityTableCell* tableCell = parent->cellForColumnAndRow(colRange.first, row);
if (tableCell == this || headers.contains(tableCell))
continue;
std::pair<unsigned, unsigned> childRowRange;
tableCell->rowIndexRange(childRowRange);
const AtomicString& scope = tableCell->getAttribute(scopeAttr);
if (scope == "col" || tableCell->isTableHeaderCell())
headers.append(tableCell);
else if (scope == "colgroup" && isTableCellInSameColGroup(tableCell))
headers.append(tableCell);
}
}
void AccessibilityTableCell::columnHeaders(AccessibilityChildrenVector& headers)
{
AccessibilityTable* parent = parentTable();
if (!parent)
return;
// Choose columnHeaders as the place where the "headers" attribute is reported.
ariaElementsFromAttribute(headers, headersAttr);
// If the headers attribute returned valid values, then do not further search for column headers.
if (!headers.isEmpty())
return;
std::pair<unsigned, unsigned> rowRange;
rowIndexRange(rowRange);
std::pair<unsigned, unsigned> colRange;
columnIndexRange(colRange);
for (unsigned row = 0; row < rowRange.first; row++) {
AccessibilityTableCell* tableCell = parent->cellForColumnAndRow(colRange.first, row);
if (!tableCell || tableCell == this || headers.contains(tableCell))
continue;
std::pair<unsigned, unsigned> childRowRange;
tableCell->rowIndexRange(childRowRange);
const AtomicString& scope = tableCell->getAttribute(scopeAttr);
if (scope == "col" || tableCell->isTableHeaderCell())
headers.append(tableCell);
else if (scope == "colgroup" && isTableCellInSameColGroup(tableCell))
headers.append(tableCell);
}
}
static gint webkitAccessibleTableGetRowExtentAt(AtkTable* table, gint row, gint column)
{
AccessibilityTableCell* axCell = cell(table, row, column);
if (axCell) {
pair<unsigned, unsigned> rowRange;
axCell->rowIndexRange(rowRange);
return rowRange.second;
}
return 0;
}
static gint webkitAccessibleTableGetRowAtIndex(AtkTable* table, gint index)
{
AccessibilityTableCell* axCell = cellAtIndex(table, index);
if (axCell) {
pair<unsigned, unsigned> rowRange;
axCell->rowIndexRange(rowRange);
return rowRange.first;
}
return -1;
}
static gint webkit_accessible_table_get_row_extent_at(AtkTable* table, gint row, gint column)
{
AccessibilityTableCell* AXCell = cell(table, row, column);
if (AXCell) {
pair<int, int> rowRange;
AXCell->rowIndexRange(rowRange);
return rowRange.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) {
pair<unsigned, unsigned> rowRange;
axCell->rowIndexRange(rowRange);
return rowRange.second;
}
return 0;
}
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) {
pair<unsigned, unsigned> rowRange;
axCell->rowIndexRange(rowRange);
return rowRange.first;
}
return -1;
}
static AtkObject* webkitAccessibleTableGetRowHeader(AtkTable* table, gint row)
{
AccessibilityObject* accTable = core(table);
if (accTable->isAccessibilityRenderObject()) {
AccessibilityObject::AccessibilityChildrenVector allRowHeaders;
static_cast<AccessibilityTable*>(accTable)->rowHeaders(allRowHeaders);
unsigned rowCount = allRowHeaders.size();
for (unsigned k = 0; k < rowCount; ++k) {
pair<unsigned, unsigned> rowRange;
AccessibilityTableCell* cell = static_cast<AccessibilityTableCell*>(allRowHeaders.at(k).get());
cell->rowIndexRange(rowRange);
if (rowRange.first <= static_cast<unsigned>(row) && static_cast<unsigned>(row) < rowRange.first + rowRange.second)
return allRowHeaders[k]->wrapper();
}
}
return 0;
}
AccessibilityTableCell* AccessibilityARIAGrid::cellForColumnAndRow(unsigned column, unsigned row)
{
if (!m_renderer)
return 0;
updateChildrenIfNecessary();
if (column >= columnCount() || row >= rowCount())
return 0;
int intRow = (int)row;
int intColumn = (int)column;
pair<int, int> columnRange;
pair<int, int> rowRange;
// Iterate backwards through the rows in case the desired cell has a rowspan and exists
// in a previous row.
for (; intRow >= 0; --intRow) {
AccessibilityObject* tableRow = m_rows[intRow].get();
if (!tableRow)
continue;
AccessibilityChildrenVector children = tableRow->children();
unsigned childrenLength = children.size();
// Since some cells may have colspans, we have to check the actual range of each
// cell to determine which is the right one.
for (unsigned k = 0; k < childrenLength; ++k) {
AccessibilityObject* child = children[k].get();
if (!child->isTableCell())
continue;
AccessibilityTableCell* tableCellChild = static_cast<AccessibilityTableCell*>(child);
tableCellChild->columnIndexRange(columnRange);
tableCellChild->rowIndexRange(rowRange);
if ((intColumn >= columnRange.first && intColumn < (columnRange.first + columnRange.second))
&& (intRow >= rowRange.first && intRow < (rowRange.first + rowRange.second)))
return tableCellChild;
}
}
return 0;
}
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 (accTable->isAccessibilityRenderObject()) {
AccessibilityObject::AccessibilityChildrenVector allRowHeaders;
toAccessibilityTable(accTable)->rowHeaders(allRowHeaders);
unsigned rowCount = allRowHeaders.size();
for (unsigned k = 0; k < rowCount; ++k) {
pair<unsigned, unsigned> rowRange;
AccessibilityTableCell* cell = toAccessibilityTableCell(allRowHeaders.at(k).get());
cell->rowIndexRange(rowRange);
if (rowRange.first <= static_cast<unsigned>(row) && static_cast<unsigned>(row) < rowRange.first + rowRange.second)
return allRowHeaders[k]->wrapper();
}
}
return 0;
}