void AccessibilityTableCell::rowIndexRange(std::pair<unsigned, unsigned>& rowRange)
{
if (!m_renderer || !m_renderer->isTableCell())
return;
RenderTableCell* renderCell = toRenderTableCell(m_renderer);
rowRange.first = renderCell->rowIndex();
rowRange.second = renderCell->rowSpan();
// since our table might have multiple sections, we have to offset our row appropriately
RenderTableSection* section = renderCell->section();
RenderTable* table = renderCell->table();
if (!table || !section)
return;
RenderTableSection* footerSection = table->footer();
unsigned rowOffset = 0;
for (RenderTableSection* tableSection = table->topSection(); tableSection; tableSection = table->sectionBelow(tableSection, SkipEmptySections)) {
// Don't add row offsets for bottom sections that are placed in before the body section.
if (tableSection == footerSection)
continue;
if (tableSection == section)
break;
rowOffset += tableSection->numRows();
}
rowRange.first += rowOffset;
}
void AccessibilityTableCell::rowIndexRange(std::pair<unsigned, unsigned>& rowRange)
{
if (!m_renderer || !m_renderer->isTableCell())
return;
RenderTableCell* renderCell = toRenderTableCell(m_renderer);
rowRange.first = renderCell->rowIndex();
rowRange.second = renderCell->rowSpan();
// since our table might have multiple sections, we have to offset our row appropriately
RenderTableSection* section = renderCell->section();
RenderTable* table = renderCell->table();
if (!table || !section)
return;
RenderTableSection* tableSection = table->topSection();
unsigned rowOffset = 0;
while (tableSection) {
if (tableSection == section)
break;
rowOffset += tableSection->numRows();
tableSection = table->sectionBelow(tableSection, SkipEmptySections);
}
rowRange.first += rowOffset;
}
AccessibilityObject* AccessibilityTableCell::titleUIElement() const
{
// Try to find if the first cell in this row is a <th>. If it is,
// then it can act as the title ui element. (This is only in the
// case when the table is not appearing as an AXTable.)
if (isTableCell() || !m_renderer || !m_renderer->isTableCell())
return 0;
// Table cells that are th cannot have title ui elements, since by definition
// they are title ui elements
Node* node = m_renderer->node();
if (node && node->hasTagName(thTag))
return 0;
RenderTableCell* renderCell = toRenderTableCell(m_renderer);
// If this cell is in the first column, there is no need to continue.
int col = renderCell->col();
if (!col)
return 0;
int row = renderCell->rowIndex();
RenderTableSection* section = renderCell->section();
if (!section)
return 0;
RenderTableCell* headerCell = section->primaryCellAt(row, 0);
if (!headerCell || headerCell == renderCell)
return 0;
Node* cellElement = headerCell->node();
if (!cellElement || !cellElement->hasTagName(thTag))
return 0;
return axObjectCache()->getOrCreate(headerCell);
}
AccessibilityTableCell* AccessibilityTable::cellForColumnAndRow(unsigned column, unsigned row)
{
if (!m_renderer || !m_renderer->isTable())
return 0;
updateChildrenIfNecessary();
RenderTable* table = toRenderTable(m_renderer);
// FIXME: This will skip a table with just a tfoot. Should fix by using RenderTable::topSection.
RenderTableSection* tableSection = table->header();
if (!tableSection)
tableSection = table->firstBody();
RenderTableCell* cell = 0;
unsigned rowCount = 0;
unsigned rowOffset = 0;
while (tableSection) {
unsigned numRows = tableSection->numRows();
unsigned numCols = tableSection->numColumns();
rowCount += numRows;
unsigned sectionSpecificRow = row - rowOffset;
if (row < rowCount && column < numCols && sectionSpecificRow < numRows) {
cell = tableSection->primaryCellAt(sectionSpecificRow, column);
// we didn't find the cell, which means there's spanning happening
// search backwards to find the spanning cell
if (!cell) {
// first try rows
for (int testRow = sectionSpecificRow - 1; testRow >= 0; --testRow) {
cell = tableSection->primaryCellAt(testRow, column);
// cell overlapped. use this one
ASSERT(cell->rowSpan() >= 1);
if (cell && ((cell->rowIndex() + (cell->rowSpan() - 1)) >= sectionSpecificRow))
break;
cell = 0;
}
if (!cell) {
// try cols
for (int testCol = column - 1; testCol >= 0; --testCol) {
cell = tableSection->primaryCellAt(sectionSpecificRow, testCol);
// cell overlapped. use this one
ASSERT(cell->rowSpan() >= 1);
if (cell && ((cell->col() + (cell->colSpan() - 1)) >= column))
break;
cell = 0;
}
}
}
}
if (cell)
break;
rowOffset += numRows;
// we didn't find anything between the rows we should have
if (row < rowCount)
break;
tableSection = table->sectionBelow(tableSection, SkipEmptySections);
}
if (!cell)
return 0;
AccessibilityObject* cellObject = axObjectCache()->getOrCreate(cell);
ASSERT(cellObject->isTableCell());
return static_cast<AccessibilityTableCell*>(cellObject);
}