react/src/devtools/views/Components/ExpandCollapseToggle.js

// @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>
  );
}