puyopuyotetr.is/app/javascript/mastodon/features/compose/components/navigation_bar.js

import React from 'react';
import PropTypes from 'prop-types';
import ImmutablePropTypes from 'react-immutable-proptypes';
import Avatar from '../../../components/avatar';
import IconButton from '../../../components/icon_button';
import Permalink from '../../../components/permalink';
import { FormattedMessage } from 'react-intl';
import ImmutablePureComponent from 'react-immutable-pure-component';

export default class NavigationBar extends ImmutablePureComponent {

  static propTypes = {
    account: ImmutablePropTypes.map.isRequired,
    onClose: PropTypes.func.isRequired,
  };

  render () {
    return (
      <div className='navigation-bar'>
        <Permalink href={this.props.account.get('url')} to={`/accounts/${this.props.account.get('id')}`}>
          <span style={{ display: 'none' }}>{this.props.account.get('acct')}</span>
          <Avatar src={this.props.account.get('avatar')} staticSrc={this.props.account.get('avatar_static')} size={40} />
        </Permalink>

        <div className='navigation-bar__profile'>
          <Permalink href={this.props.account.get('url')} to={`/accounts/${this.props.account.get('id')}`}>
            <strong className='navigation-bar__profile-account'>@{this.props.account.get('acct')}</strong>
          </Permalink>

          <a href='/settings/profile' className='navigation-bar__profile-edit'><FormattedMessage id='navigation_bar.edit_profile' defaultMessage='Edit profile' /></a>
        </div>

        <IconButton title='' icon='close' onClick={this.props.onClose} />
      </div>
    );
  }

}