@ou-imdt/utils/lib/closestFocusableAncestor.js

Utility library for interactive media development

import composedAncestors from './composedAncestors.js';
import firstFocusableNodeFrom from './firstFocusableNodeFrom.js';

/**
 * Finds the closest focusable ancestor of a node.
 * @param {Node} node - The node to start searching from.
 * @param {string} focusDelegate - The property name used as a focus delegate.
 * @returns {Node|null} The closest focusable ancestor or `null` if none found.
 */
export default function closestFocusableAncestor(node, focusDelegate) {
  return firstFocusableNodeFrom(composedAncestors(node), focusDelegate);
}