countVisibleItems method

int countVisibleItems(
  1. List<TSelectItem<V>> items
)

Counts visible items in the tree

Implementation

int countVisibleItems(List<TSelectItem<V>> items) {
  int count = 0;
  for (final item in items) {
    count++;
    if (item.hasChildren && item.expanded) {
      count += countVisibleItems(item.children!);
    }
  }
  return count;
}