react-native-web-headroom/docs/node_modules/react-modal/lib/helpers/ariaAppHider.js

React Native Web Headroom

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.assertNodeList = assertNodeList;
exports.setElement = setElement;
exports.validateElement = validateElement;
exports.hide = hide;
exports.show = show;
exports.documentNotReadyOrSSRTesting = documentNotReadyOrSSRTesting;
exports.resetForTesting = resetForTesting;

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var globalElement = null;

function assertNodeList(nodeList, selector) {
  if (!nodeList || !nodeList.length) {
    throw new Error("react-modal: No elements were found for selector " + selector + ".");
  }
}

function setElement(element) {
  var useElement = element;
  if (typeof useElement === "string") {
    var el = document.querySelectorAll(useElement);
    assertNodeList(el, useElement);
    useElement = "length" in el ? el[0] : el;
  }
  globalElement = useElement || globalElement;
  return globalElement;
}

function validateElement(appElement) {
  if (!appElement && !globalElement) {
    (0, _warning2.default)(false, ["react-modal: App element is not defined.", "Please use `Modal.setAppElement(el)` or set `appElement={el}`.", "This is needed so screen readers don't see main content", "when modal is opened. It is not recommended, but you can opt-out", "by setting `ariaHideApp={false}`."].join(" "));

    return false;
  }

  return true;
}

function hide(appElement) {
  if (validateElement(appElement)) {
    (appElement || globalElement).setAttribute("aria-hidden", "true");
  }
}

function show(appElement) {
  if (validateElement(appElement)) {
    (appElement || globalElement).removeAttribute("aria-hidden");
  }
}

function documentNotReadyOrSSRTesting() {
  globalElement = null;
}

function resetForTesting() {
  globalElement = null;
}