Function useTableRow

packages/react-aria/src/table/useTableRow.ts:50–166

(
  props: GridRowProps<T>,
  state: TableState<T> | TreeGridState<T>,
  ref: RefObject<FocusableElement | null>
)

 * @param state - State of the table, as returned by `useTableState`.
 */
export function useTableRow<T>(
  props: GridRowProps<T>,
  state: TableState<T> | TreeGridState<T>,
  ref: RefObject<FocusableElement | null>
): TableRowAria {
  let {node, isVirtualized} = props;
  let {rowProps, ...states} = useGridRow<T, ITableCollection<T>, TableState<T>>(
    props,
    state as TableState<T>,
    ref
  );
  let {direction} = useLocale();

  if (isVirtualized && state.treeColumn == null) {
    rowProps['aria-rowindex'] = node.index + 1 + state.collection.headerRows.length; // aria-rowindex is 1 based
  } else {
    delete rowProps['aria-rowindex'];
  }

  let isExpanded =
    state.treeColumn != null && (state.expandedKeys === 'all' || state.expandedKeys.has(node.key));
  let stringFormatter = useLocalizedStringFormatter(intlMessages, '@react-aria/table');
  let labelProps = useLabels({
    'aria-label': isExpanded
      ? stringFormatter.format('collapse')
      : stringFormatter.format('expand'),
    'aria-labelledby': getRowLabelledBy(state as TableState<T>, node.key)
  });

  let treeGridRowProps: HTMLAttributes<HTMLElement> = {};
  let expandButtonProps: AriaButtonProps = {};
  if (state.treeColumn != null) {
    let treeNode = state.collection.getItem(node.key);
    if (treeNode != null) {
      let lastChild = getLastChild(state.collection, node);
      let hasChildRows =
        treeNode.props?.hasChildRows ||
        treeNode.props?.UNSTABLE_childItems ||
        lastChild?.type !== 'cell';
      let parent = state.collection.getItem(node.parentKey!)!;
      let isParentBody = parent.type === 'tablebody' || parent.type === 'body';
      let lastSibling = getLastChild(state.collection, parent)!;
      while (lastSibling && lastSibling.type !== 'item' && lastSibling.prevKey != null) {
        lastSibling = state.collection.getItem(lastSibling.prevKey)!;
      }

      treeGridRowProps = {
        onKeyDown: e => {
          if (
            e.key === EXPANSION_KEYS['expand'][direction] &&
            state.selectionManager.focusedKey === treeNode.key &&
            hasChildRows &&
            state.expandedKeys !== 'all' &&
            !state.expandedKeys.has(treeNode.key)
          ) {
            state.toggleKey(treeNode.key);
            e.stopPropagation();
          } else if (