1 files changed, 60 insertions, 10 deletions
diff --git a/app/javascript/mastodon/features/ui/components/tabs_bar.js b/app/javascript/mastodon/features/ui/components/tabs_bar.js
index baec86d0d..af9e6bf45 100644
--- a/app/javascript/mastodon/features/ui/components/tabs_bar.js
+++ b/app/javascript/mastodon/features/ui/components/tabs_bar.js
@@ -1,16 +1,19 @@
 import React from 'react';
+import PropTypes from 'prop-types';
 import NavLink from 'react-router-dom/NavLink';
-import { FormattedMessage } from 'react-intl';
+import { FormattedMessage, injectIntl } from 'react-intl';
+import { debounce } from 'lodash';
+import { isUserTouching } from '../../../is_mobile';
 
 export const links = [
-  <NavLink className='tabs-bar__link primary' activeClassName='active' to='/statuses/new' data-preview-title-id='tabs_bar.compose' data-preview-icon='pencil' ><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' data-preview-title-id='column.home' data-preview-icon='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' data-preview-title-id='column.notifications' data-preview-icon='bell' ><i className='fa fa-fw fa-bell' /><FormattedMessage id='tabs_bar.notifications' defaultMessage='Notifications' /></NavLink>,
+  <NavLink className='tabs-bar__link primary' to='/statuses/new' data-preview-title-id='tabs_bar.compose' data-preview-icon='pencil' ><i className='fa fa-fw fa-pencil' /><FormattedMessage id='tabs_bar.compose' defaultMessage='Compose' /></NavLink>,
+  <NavLink className='tabs-bar__link primary' to='/timelines/home' data-preview-title-id='column.home' data-preview-icon='home' ><i className='fa fa-fw fa-home' /><FormattedMessage id='tabs_bar.home' defaultMessage='Home' /></NavLink>,
+  <NavLink className='tabs-bar__link primary' to='/notifications' data-preview-title-id='column.notifications' data-preview-icon='bell' ><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' data-preview-title-id='column.community' data-preview-icon='users' ><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' data-preview-title-id='column.public' data-preview-icon='globe' ><i className='fa fa-fw fa-globe' /><FormattedMessage id='tabs_bar.federated_timeline' defaultMessage='Federated' /></NavLink>,
+  <NavLink className='tabs-bar__link secondary' to='/timelines/public/local' data-preview-title-id='column.community' data-preview-icon='users' ><i className='fa fa-fw fa-users' /><FormattedMessage id='tabs_bar.local_timeline' defaultMessage='Local' /></NavLink>,
+  <NavLink className='tabs-bar__link secondary' exact to='/timelines/public' data-preview-title-id='column.public' data-preview-icon='globe' ><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' data-preview-title-id='tabs_bar.federated_timeline' data-preview-icon='asterisk' ><i className='fa fa-fw fa-asterisk' /></NavLink>,
+  <NavLink className='tabs-bar__link primary' style={{ flexGrow: '0', flexBasis: '30px' }} to='/getting-started' data-preview-title-id='getting_started.heading' data-preview-icon='asterisk' ><i className='fa fa-fw fa-asterisk' /></NavLink>,
 ];
 
 export function getIndex (path) {
@@ -21,13 +24,60 @@ export function getLink (index) {
   return links[index].props.to;
 }
 
+@injectIntl
 export default class TabsBar extends React.Component {
 
+  static contextTypes = {
+    router: PropTypes.object.isRequired,
+  }
+
+  static propTypes = {
+    intl: PropTypes.object.isRequired,
+  }
+
+  setRef = ref => {
+    this.node = ref;
+  }
+
+  handleClick = (e) => {
+    // Only apply optimization for touch devices, which we assume are slower
+    // We thus avoid the 250ms delay for non-touch devices and the lag for touch devices
+    if (isUserTouching()) {
+      e.preventDefault();
+      e.persist();
+
+      requestAnimationFrame(() => {
+        const tabs = Array(...this.node.querySelectorAll('.tabs-bar__link'));
+        const currentTab = tabs.find(tab => tab.classList.contains('active'));
+        const nextTab = tabs.find(tab => tab.contains(e.target));
+        const { props: { to } } = links[Array(...this.node.childNodes).indexOf(nextTab)];
+
+
+        if (currentTab !== nextTab) {
+          if (currentTab) {
+            currentTab.classList.remove('active');
+          }
+
+          const listener = debounce(() => {
+            nextTab.removeEventListener('transitionend', listener);
+            this.context.router.history.push(to);
+          }, 50);
+
+          nextTab.addEventListener('transitionend', listener);
+          nextTab.classList.add('active');
+        }
+      });
+    }
+
+  }
+
   render () {
+    const { intl: { formatMessage } } = this.props;
+
     return (
-      <div className='tabs-bar'>
-        {React.Children.toArray(links)}
-      </div>
+      <nav className='tabs-bar' ref={this.setRef}>
+        {links.map(link => React.cloneElement(link, { key: link.props.to, onClick: this.handleClick, 'aria-label': formatMessage({ id: link.props['data-preview-title-id'] }) }))}
+      </nav>
     );
   }