1 files changed, 86 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/features/ui/components/tabs_bar.js b/app/javascript/flavours/glitch/features/ui/components/tabs_bar.js
new file mode 100644
index 000000000..a67405215
--- /dev/null
+++ b/app/javascript/flavours/glitch/features/ui/components/tabs_bar.js
@@ -0,0 +1,86 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { NavLink, withRouter } from 'react-router-dom';
+import { FormattedMessage, injectIntl } from 'react-intl';
+import { debounce } from 'lodash';
+import { isUserTouching } from 'flavours/glitch/util/is_mobile';
+import Icon from 'flavours/glitch/components/icon';
+import NotificationsCounterIcon from './notifications_counter_icon';
+
+export const links = [
+  <NavLink className='tabs-bar__link' to='/timelines/home' data-preview-title-id='column.home' data-preview-icon='home' ><Icon id='home' fixedWidth /><FormattedMessage id='tabs_bar.home' defaultMessage='Home' /></NavLink>,
+  <NavLink className='tabs-bar__link' to='/notifications' data-preview-title-id='column.notifications' data-preview-icon='bell' ><NotificationsCounterIcon /><FormattedMessage id='tabs_bar.notifications' defaultMessage='Notifications' /></NavLink>,
+  <NavLink className='tabs-bar__link' to='/timelines/public/local' data-preview-title-id='column.community' data-preview-icon='users' ><Icon id='users' fixedWidth /><FormattedMessage id='tabs_bar.local_timeline' defaultMessage='Local' /></NavLink>,
+  <NavLink className='tabs-bar__link' exact to='/timelines/public' data-preview-title-id='column.public' data-preview-icon='globe' ><Icon id='globe' fixedWidth /><FormattedMessage id='tabs_bar.federated_timeline' defaultMessage='Federated' /></NavLink>,
+  <NavLink className='tabs-bar__link optional' to='/search' data-preview-title-id='tabs_bar.search' data-preview-icon='bell' ><Icon id='search' fixedWidth /><FormattedMessage id='tabs_bar.search' defaultMessage='Search' /></NavLink>,
+  <NavLink className='tabs-bar__link' style={{ flexGrow: '0', flexBasis: '30px' }} to='/getting-started' data-preview-title-id='getting_started.heading' data-preview-icon='bars' ><Icon id='bars' fixedWidth /></NavLink>,
+];
+
+export function getIndex (path) {
+  return links.findIndex(link => link.props.to === path);
+}
+
+export function getLink (index) {
+  return links[index].props.to;
+}
+
+export default @injectIntl
+@withRouter
+class TabsBar extends React.PureComponent {
+
+  static propTypes = {
+    intl: PropTypes.object.isRequired,
+    history: 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.props.history.push(to);
+          }, 50);
+
+          nextTab.addEventListener('transitionend', listener);
+          nextTab.classList.add('active');
+        }
+      });
+    }
+
+  }
+
+  render () {
+    const { intl: { formatMessage } } = this.props;
+
+    return (
+      <div className='tabs-bar__wrapper'>
+        <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>
+
+        <div id='tabs-bar__portal' />
+      </div>
+    );
+  }
+
+}