@material-ui/core/esm/NoSsr/NoSsr.js

React components that implement Google's Material Design.

import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import React from 'react';
import PropTypes from 'prop-types';
import { exactProp } from '@material-ui/utils';
var useEnhancedEffect = typeof window !== 'undefined' && process.env.NODE_ENV !== 'test' ? React.useLayoutEffect : React.useEffect;
/**
 * NoSsr purposely removes components from the subject of Server Side Rendering (SSR).
 *
 * This component can be useful in a variety of situations:
 * - Escape hatch for broken dependencies not supporting SSR.
 * - Improve the time-to-first paint on the client by only rendering above the fold.
 * - Reduce the rendering time on the server.
 * - Under too heavy server load, you can turn on service degradation.
 */

function NoSsr(props) {
  var children = props.children,
      _props$defer = props.defer,
      defer = _props$defer === void 0 ? false : _props$defer,
      _props$fallback = props.fallback,
      fallback = _props$fallback === void 0 ? null : _props$fallback;

  var _React$useState = React.useState(false),
      _React$useState2 = _slicedToArray(_React$useState, 2),
      mountedState = _React$useState2[0],
      setMountedState = _React$useState2[1];

  useEnhancedEffect(function () {
    if (!defer) {
      setMountedState(true);
    }
  }, [defer]);
  React.useEffect(function () {
    if (defer) {
      setMountedState(true);
    }
  }, [defer]); // We need the Fragment here to force react-docgen to recognise NoSsr as a component.

  return React.createElement(React.Fragment, null, mountedState ? children : fallback);
}

process.env.NODE_ENV !== "production" ? NoSsr.propTypes = {
  /**
   * You can wrap a node.
   */
  children: PropTypes.node.isRequired,

  /**
   * If `true`, the component will not only prevent server-side rendering.
   * It will also defer the rendering of the children into a different screen frame.
   */
  defer: PropTypes.bool,

  /**
   * The fallback content to display.
   */
  fallback: PropTypes.node
} : void 0;

if (process.env.NODE_ENV !== 'production') {
  // eslint-disable-next-line
  NoSsr['propTypes' + ''] = exactProp(NoSsr.propTypes);
}

export default NoSsr;