void AccessibilityScrollView::addChildren()
{
ASSERT(!m_haveChildren);
m_haveChildren = true;
AccessibilityObject* webArea = webAreaObject();
if (webArea)
m_children.append(webArea);
updateChildrenIfNecessary();
}
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;
}
AccessibilityTableCell* AccessibilityARIAGrid::cellForColumnAndRow(unsigned column, unsigned row)
{
if (!m_renderer)
return 0;
updateChildrenIfNecessary();
if (column >= columnCount() || row >= rowCount())
return 0;
AccessibilityObject* tableRow = m_rows[row].get();
if (!tableRow)
return 0;
AccessibilityChildrenVector children = tableRow->children();
// in case this row had fewer columns than other rows
AccessibilityObject* tableCell = 0;
if (column >= children.size())
return 0;
tableCell = children[column].get();
return static_cast<AccessibilityTableCell*>(tableCell);
}
