docusaurus/packages/docusaurus-theme-classic/src/theme/CodeBlock/WordWrapButton/index.tsx

/**
 * 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.
 */

import React from 'react';
import clsx from 'clsx';
import {translate} from '@docusaurus/Translate';
import type {Props} from '@theme/CodeBlock/WordWrapButton';

import styles from './styles.module.css';

export default function WordWrapButton({
  className,
  onClick,
  isEnabled,
}: Props): JSX.Element | null {
  const title = translate({
    id: 'theme.CodeBlock.wordWrapToggle',
    message: 'Toggle word wrap',
    description:
      'The title attribute for toggle word wrapping button of code block lines',
  });

  return (
    <button
      type="button"
      onClick={onClick}
      className={clsx(
        'clean-btn',
        className,
        isEnabled && styles.wordWrapButtonEnabled,
      )}
      aria-label={title}
      title={title}>
      <svg
        className={styles.wordWrapButtonIcon}
        viewBox="0 0 24 24"
        aria-hidden="true">
        <path
          fill="currentColor"
          d="M4 19h6v-2H4v2zM20 5H4v2h16V5zm-3 6H4v2h13.25c1.1 0 2 .9 2 2s-.9 2-2 2H15v-2l-3 3l3 3v-2h2c2.21 0 4-1.79 4-4s-1.79-4-4-4z"
        />
      </svg>
    </button>
  );
}