dom-helpers/cjs/offsetParent.js

tiny modular DOM lib for ie9+

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.default = offsetParent;
var _css = _interopRequireDefault(require("./css.js"));
var _ownerDocument = _interopRequireDefault(require("./ownerDocument.js"));
const isHTMLElement = e => !!e && 'offsetParent' in e;
function offsetParent(node) {
  const doc = (0, _ownerDocument.default)(node);
  let parent = node && node.offsetParent;
  while (isHTMLElement(parent) && parent.nodeName !== 'HTML' && (0, _css.default)(parent, 'position') === 'static') {
    parent = parent.offsetParent;
  }
  return parent || doc.documentElement;
}
module.exports = exports.default;