static AtkObject*
getRowHeaderCB(AtkTable *aTable, gint aRowIdx)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
if (!accWrap)
return nullptr;
Accessible* cell = accWrap->AsTable()->CellAt(aRowIdx, 0);
if (!cell)
return nullptr;
// If the cell at the first column is row header then assume it is row
// header for all columns,
if (cell->Role() == roles::ROWHEADER)
return AccessibleWrap::GetAtkObject(cell);
// otherwise get row header for the data cell at the first column.
TableCellAccessible* tableCell = cell->AsTableCell();
if (!tableCell)
return nullptr;
nsAutoTArray<Accessible*, 10> headerCells;
tableCell->RowHeaderCells(&headerCells);
if (headerCells.IsEmpty())
return nullptr;
return AccessibleWrap::GetAtkObject(headerCells[0]);
}
uint32_t ARIAGridCellAccessible::ColIdx() const {
Accessible* row = Row();
if (!row) return 0;
int32_t indexInRow = IndexInParent();
uint32_t colIdx = 0;
for (int32_t idx = 0; idx < indexInRow; idx++) {
Accessible* cell = row->GetChildAt(idx);
if (cell->IsTableCell()) {
colIdx += cell->AsTableCell()->ColExtent();
}
}
return colIdx;
}
uint32_t ARIAGridAccessible::ColCount() const {
AccIterator rowIter(this, filters::GetRow);
Accessible* row = rowIter.Next();
if (!row) return 0;
AccIterator cellIter(row, filters::GetCell);
Accessible* cell = nullptr;
uint32_t colCount = 0;
while ((cell = cellIter.Next())) {
MOZ_ASSERT(cell->IsTableCell(), "No table or grid cell!");
colCount += cell->AsTableCell()->ColExtent();
}
return colCount;
}