@helpscout/hsds-react/utilities/closest.js

React component library for Help Scout's Design System

"use strict";

exports.__esModule = true;
exports.matches = matches;
exports.closest = closest;
exports.default = void 0;

/* istanbul ignore file */
// Source
// https://github.com/ForbesLindesay/closest
var proto = typeof Element !== 'undefined' ? Element.prototype : {};
var vendor = proto['matches'] || proto['matchesSelector'] || proto['webkitMatchesSelector'] || proto['mozMatchesSelector'] || proto['msMatchesSelector'] || proto['oMatchesSelector'];

function matches(el, selector) {
  if (!el || el.nodeType !== 1) return false;
  if (vendor) return vendor.call(el, selector);
  if (!el.parentNode) return false;
  var nodes = el.parentNode.querySelectorAll(selector);

  for (var i = 0; i < nodes.length; i++) {
    if (nodes[i] == el) return true;
  }

  return false;
} // TODO: remove, move to Beacon (src/components/PreviousMessages/PreviousMessages.LoadMore.js)


function closest(element, selector, checkYoSelf) {
  var parent = checkYoSelf ? element : element.parentNode;

  while (parent && parent !== document) {
    if (matches(parent, selector)) return parent;
    parent = parent.parentNode;
  }
}

var _default = closest;
exports.default = _default;