p5.js-web-editor/client/modules/IDE/components/NewFolderModal.jsx

import PropTypes from 'prop-types';
import React from 'react';
import { reduxForm } from 'redux-form';
import NewFolderForm from './NewFolderForm';

import ExitIcon from '../../../images/exit.svg';

class NewFolderModal extends React.Component {
  componentDidMount() {
    this.newFolderModal.focus();
  }

  render() {
    return (
      <section className="modal" ref={(element) => { this.newFolderModal = element; }} >
        <div className="modal-content-folder">
          <div className="modal__header">
            <h2 className="modal__title">Create Folder</h2>
            <button
              className="modal__exit-button"
              onClick={this.props.closeModal}
              aria-label="Close New Folder Modal"
            >
              <ExitIcon focusable="false" aria-hidden="true" />
            </button>
          </div>
          <NewFolderForm {...this.props} />
        </div>
      </section>
    );
  }
}

NewFolderModal.propTypes = {
  closeModal: PropTypes.func.isRequired
};

function validate(formProps) {
  const errors = {};
  if (!formProps.name) {
    errors.name = 'Please enter a name';
  } else if (formProps.name.trim().length === 0) {
    errors.name = 'Folder name cannot contain only spaces';
  } else if (formProps.name.match(/\.+/i)) {
    errors.name = 'Folder name cannot contain an extension';
  }

  return errors;
}
export default reduxForm({
  form: 'new-folder',
  fields: ['name'],
  validate
})(NewFolderModal);