mastodon/app/javascript/flavours/glitch/components/display_name.js

//  Package imports.
import classNames from 'classnames';
import PropTypes from 'prop-types';
import React from 'react';
import ImmutablePropTypes from 'react-immutable-proptypes';

//  The component.
export default function DisplayName ({
  account,
  className,
  inline,
  localDomain,
  others,
  onAccountClick,
}) {
  const computedClass = classNames('display-name', { inline }, className);

  if (!account) return null;

  let displayName, suffix;

  let acct = account.get('acct');

  if (acct.indexOf('@') === -1 && localDomain) {
    acct = `${acct}@${localDomain}`;
  }

  if (others && others.size > 0) {
    displayName = others.take(2).map(a => (
      <a
        href={a.get('url')}
        target='_blank'
        onClick={(e) => onAccountClick(a.get('id'), e)}
        title={`@${a.get('acct')}`}
      >
        <bdi key={a.get('id')}>
          <strong className='display-name__html' dangerouslySetInnerHTML={{ __html: a.get('display_name_html') }} />
        </bdi>
      </a>
    )).reduce((prev, cur) => [prev, ', ', cur]);

    if (others.size - 2 > 0) {
     displayName.push(` +${others.size - 2}`);
    }

    suffix = (
      <a href={account.get('url')} target='_blank' onClick={(e) => onAccountClick(account.get('id'), e)}>
        <span className='display-name__account'>@{acct}</span>
      </a>
    );
  } else {
    displayName = <bdi><strong className='display-name__html' dangerouslySetInnerHTML={{ __html: account.get('display_name_html') }} /></bdi>;
    suffix      = <span className='display-name__account'>@{acct}</span>;
  }

  return (
    <span className={computedClass}>
      {displayName}
      {inline ? ' ' : null}
      {suffix}
    </span>
  );
}

//  Props.
DisplayName.propTypes = {
  account: ImmutablePropTypes.map,
  className: PropTypes.string,
  inline: PropTypes.bool,
  localDomain: PropTypes.string,
  others: ImmutablePropTypes.list,
  handleClick: PropTypes.func,
};