/**
 * DO NOT EDIT
 *
 * This file was automatically generated by
 *   https://github.com/Polymer/tools/tree/master/packages/gen-typescript-declarations
 *
 * To modify these typings, edit the source file(s):
 *   iron-focusables-helper.js
 */

import {dom} from '@polymer/polymer/lib/legacy/polymer.dom.js';

declare class IronFocusablesHelperClass {

  /**
   * Returns a sorted array of tabbable nodes, including the root node.
   * It searches the tabbable nodes in the light and shadow dom of the chidren,
   * sorting the result by tabindex.
   */
  getTabbableNodes(node: Node): HTMLElement[];

  /**
   * Returns if a element is focusable.
   */
  isFocusable(element: HTMLElement): boolean;

  /**
   * Returns if a element is tabbable. To be tabbable, a element must be
   * focusable, visible, and with a tabindex !== -1.
   */
  isTabbable(element: HTMLElement): boolean;
}