1 files changed, 32 insertions, 8 deletions
diff --git a/app/javascript/mastodon/features/ui/components/tabs_bar.js b/app/javascript/mastodon/features/ui/components/tabs_bar.js
index 265cb818b..09acee067 100644
--- a/app/javascript/mastodon/features/ui/components/tabs_bar.js
+++ b/app/javascript/mastodon/features/ui/components/tabs_bar.js
@@ -2,19 +2,43 @@ import React from 'react';
 import NavLink from 'react-router-dom/NavLink';
 import { FormattedMessage } from 'react-intl';
 
+const links = [
+  <NavLink className='tabs-bar__link primary' activeClassName='active' to='/statuses/new'><i className='fa fa-fw fa-pencil' /><FormattedMessage id='tabs_bar.compose' defaultMessage='Compose' /></NavLink>,
+  <NavLink className='tabs-bar__link primary' activeClassName='active' to='/timelines/home'><i className='fa fa-fw fa-home' /><FormattedMessage id='tabs_bar.home' defaultMessage='Home' /></NavLink>,
+  <NavLink className='tabs-bar__link primary' activeClassName='active' to='/notifications'><i className='fa fa-fw fa-bell' /><FormattedMessage id='tabs_bar.notifications' defaultMessage='Notifications' /></NavLink>,
+
+  <NavLink className='tabs-bar__link secondary' activeClassName='active' to='/timelines/public/local'><i className='fa fa-fw fa-users' /><FormattedMessage id='tabs_bar.local_timeline' defaultMessage='Local' /></NavLink>,
+  <NavLink className='tabs-bar__link secondary' activeClassName='active' exact to='/timelines/public'><i className='fa fa-fw fa-globe' /><FormattedMessage id='tabs_bar.federated_timeline' defaultMessage='Federated' /></NavLink>,
+
+  <NavLink className='tabs-bar__link primary' activeClassName='active' style={{ flexGrow: '0', flexBasis: '30px' }} to='/getting-started'><i className='fa fa-fw fa-asterisk' /></NavLink>,
+];
+
+export function getPreviousLink (path) {
+  const index = links.findIndex(link => link.props.to === path);
+
+  if (index > 0) {
+    return links[index - 1].props.to;
+  }
+
+  return null;
+};
+
+export function getNextLink (path) {
+  const index = links.findIndex(link => link.props.to === path);
+
+  if (index !== -1 && index < links.length - 1) {
+    return links[index + 1].props.to;
+  }
+
+  return null;
+};
+
 class TabsBar extends React.Component {
 
   render () {
     return (
       <div className='tabs-bar'>
-        <NavLink className='tabs-bar__link primary' activeClassName='active' to='/statuses/new'><i className='fa fa-fw fa-pencil' /><FormattedMessage id='tabs_bar.compose' defaultMessage='Compose' /></NavLink>
-        <NavLink className='tabs-bar__link primary' activeClassName='active' to='/timelines/home'><i className='fa fa-fw fa-home' /><FormattedMessage id='tabs_bar.home' defaultMessage='Home' /></NavLink>
-        <NavLink className='tabs-bar__link primary' activeClassName='active' to='/notifications'><i className='fa fa-fw fa-bell' /><FormattedMessage id='tabs_bar.notifications' defaultMessage='Notifications' /></NavLink>
-
-        <NavLink className='tabs-bar__link secondary' activeClassName='active' to='/timelines/public/local'><i className='fa fa-fw fa-users' /><FormattedMessage id='tabs_bar.local_timeline' defaultMessage='Local' /></NavLink>
-        <NavLink className='tabs-bar__link secondary' activeClassName='active' exact to='/timelines/public'><i className='fa fa-fw fa-globe' /><FormattedMessage id='tabs_bar.federated_timeline' defaultMessage='Federated' /></NavLink>
-
-        <NavLink className='tabs-bar__link primary' activeClassName='active' style={{ flexGrow: '0', flexBasis: '30px' }} to='/getting-started'><i className='fa fa-fw fa-asterisk' /></NavLink>
+        {React.Children.toArray(links)}
       </div>
     );
   }