react/packages/react-devtools-shared/src/devtools/views/Components/ExpandCollapseToggle.js

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */

import React from 'react';
import Button from '../Button';
import ButtonIcon from '../ButtonIcon';

import styles from './ExpandCollapseToggle.css';

type ExpandCollapseToggleProps = {|
  isOpen: boolean,
  setIsOpen: Function,
|};

export default function ExpandCollapseToggle({
  isOpen,
  setIsOpen,
}: ExpandCollapseToggleProps) {
  return (
    <Button
      className={styles.ExpandCollapseToggle}
      onClick={() => setIsOpen(prevIsOpen => !prevIsOpen)}
      title={`${isOpen ? 'Collapse' : 'Expand'} prop value`}>
      <ButtonIcon type={isOpen ? 'expanded' : 'collapsed'} />
    </Button>
  );
}