tootlab-mastodon/app/javascript/mastodon/features/ui/components/navigation_panel.js

import React from 'react';
import PropTypes from 'prop-types';
import { NavLink, Link } from 'react-router-dom';
import { FormattedMessage } from 'react-intl';
import Icon from 'mastodon/components/icon';
import { showTrends } from 'mastodon/initial_state';
import NotificationsCounterIcon from './notifications_counter_icon';
import FollowRequestsNavLink from './follow_requests_nav_link';
import ListPanel from './list_panel';
import TrendsContainer from 'mastodon/features/getting_started/containers/trends_container';
import Logo from 'mastodon/components/logo';
import SignInBanner from './sign_in_banner';

export default class NavigationPanel extends React.Component {

  static contextTypes = {
    router: PropTypes.object.isRequired,
    identity: PropTypes.object.isRequired,
  };

  render () {
    const { signedIn } = this.context.identity;

    return (
      <div className='navigation-panel'>
        <div className='navigation-panel__logo'>
          <Link to='/' className='column-link column-link--logo'><Logo /></Link>
          <hr />
        </div>

        {signedIn && (
          <React.Fragment>
            <NavLink className='column-link column-link--transparent' to='/home' data-preview-title-id='column.home' data-preview-icon='home' ><Icon className='column-link__icon' id='home' fixedWidth /><FormattedMessage id='tabs_bar.home' defaultMessage='Home' /></NavLink>
            <NavLink className='column-link column-link--transparent' to='/notifications' data-preview-title-id='column.notifications' data-preview-icon='bell' ><NotificationsCounterIcon className='column-link__icon' /><FormattedMessage id='tabs_bar.notifications' defaultMessage='Notifications' /></NavLink>
            <FollowRequestsNavLink />
          </React.Fragment>
        )}

        <NavLink className='column-link column-link--transparent' to='/explore' data-preview-title-id='explore.title' data-preview-icon='hashtag'><Icon className='column-link__icon' id='hashtag' fixedWidth /><FormattedMessage id='explore.title' defaultMessage='Explore' /></NavLink>
        <NavLink className='column-link column-link--transparent' to='/public/local' data-preview-title-id='column.community' data-preview-icon='users' ><Icon className='column-link__icon' id='users' fixedWidth /><FormattedMessage id='tabs_bar.local_timeline' defaultMessage='Local' /></NavLink>
        <NavLink className='column-link column-link--transparent' exact to='/public' data-preview-title-id='column.public' data-preview-icon='globe' ><Icon className='column-link__icon' id='globe' fixedWidth /><FormattedMessage id='tabs_bar.federated_timeline' defaultMessage='Federated' /></NavLink>

        {!signedIn && (
          <div className='navigation-panel__sign-in-banner'>
            <hr />
            <SignInBanner />
          </div>
        )}

        {signedIn && (
          <React.Fragment>
            <NavLink className='column-link column-link--transparent' to='/conversations'><Icon className='column-link__icon' id='at' fixedWidth /><FormattedMessage id='navigation_bar.direct' defaultMessage='Direct messages' /></NavLink>
            <NavLink className='column-link column-link--transparent' to='/favourites'><Icon className='column-link__icon' id='star' fixedWidth /><FormattedMessage id='navigation_bar.favourites' defaultMessage='Favourites' /></NavLink>
            <NavLink className='column-link column-link--transparent' to='/bookmarks'><Icon className='column-link__icon' id='bookmark' fixedWidth /><FormattedMessage id='navigation_bar.bookmarks' defaultMessage='Bookmarks' /></NavLink>
            <NavLink className='column-link column-link--transparent' to='/lists'><Icon className='column-link__icon' id='list-ul' fixedWidth /><FormattedMessage id='navigation_bar.lists' defaultMessage='Lists' /></NavLink>

            <ListPanel />

            <hr />

            <a className='column-link column-link--transparent' href='/settings/preferences'><Icon className='column-link__icon' id='cog' fixedWidth /><FormattedMessage id='navigation_bar.preferences' defaultMessage='Preferences' /></a>
            <a className='column-link column-link--transparent' href='/relationships'><Icon className='column-link__icon' id='users' fixedWidth /><FormattedMessage id='navigation_bar.follows_and_followers' defaultMessage='Follows and followers' /></a>
          </React.Fragment>
        )}

        <div className='navigation-panel__legal'>
          <hr />
          <NavLink className='column-link column-link--transparent' to='/about'><Icon className='column-link__icon' id='ellipsis-h' fixedWidth /><FormattedMessage id='navigation_bar.about' defaultMessage='About' /></NavLink>
        </div>

        {showTrends && (
          <React.Fragment>
            <div className='flex-spacer' />
            <TrendsContainer />
          </React.Fragment>
        )}
      </div>
    );
  }

}