Function getIter

packages/foliate-js/ui/tree.js:116–116

(current)

    isTreeItem(node) && node.offsetParent ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_SKIP;
  const iter = document.createTreeWalker($toc, 1, { acceptNode });
  const getIter = (current) => ((iter.currentNode = current), iter);

  for (const el of list)
    el.addEventListener("keydown", (event) => {