React UI: Move global /graph settings to navbar

This saves precious space at the top and makes the page look less
awkward.

Signed-off-by: Julius Volz <julius.volz@gmail.com>

web/ui/react-app/src/App.tsx

@@ -1,4 +1,4 @@
-import React, { FC } from 'react';
+import React, { FC, useState } from 'react';
 import Navigation from './Navbar';
 import { Container } from 'reactstrap';
 
@@ -8,9 +8,11 @@ import { Alerts, Config, Flags, Rules, Services, Status, Targets, TSDBStatus, Pa
 import PathPrefixProps from './types/PathPrefixProps';
 
 const App: FC<PathPrefixProps> = ({ pathPrefix }) => {
+  const [extraNavItem, setExtraNavItem] = useState<React.ReactNode>(null);
+
   return (
     <>
-      <Navigation pathPrefix={pathPrefix} />
+      <Navigation pathPrefix={pathPrefix} extraNavItem={extraNavItem} />
       <Container fluid style={{ paddingTop: 70 }}>
         <Router basepath={`${pathPrefix}/new`}>
           <Redirect from="/" to={`${pathPrefix}/new/graph`} />
@@ -19,7 +21,7 @@ const App: FC<PathPrefixProps> = ({ pathPrefix }) => {
             NOTE: Any route added here needs to also be added to the list of
             React-handled router paths ("reactRouterPaths") in /web/web.go.
           */}
-          <PanelList path="/graph" pathPrefix={pathPrefix} />
+          <PanelList path="/graph" pathPrefix={pathPrefix} setExtraNavItem={setExtraNavItem} />
           <Alerts path="/alerts" pathPrefix={pathPrefix} />
           <Config path="/config" pathPrefix={pathPrefix} />
           <Flags path="/flags" pathPrefix={pathPrefix} />

web/ui/react-app/src/Navbar.tsx

@@ -14,9 +14,14 @@ import {
 } from 'reactstrap';
 import PathPrefixProps from './types/PathPrefixProps';
 
-const Navigation: FC<PathPrefixProps> = ({ pathPrefix }) => {
+interface NavigationProps {
+  extraNavItem: React.ReactNode;
+}
+
+const Navigation: FC<PathPrefixProps & NavigationProps> = ({ pathPrefix, extraNavItem }) => {
   const [isOpen, setIsOpen] = useState(false);
   const toggle = () => setIsOpen(!isOpen);
+
   return (
     <Navbar className="mb-3" dark color="dark" expand="md" fixed="top">
       <NavbarToggler onClick={toggle} />
@@ -70,6 +75,7 @@ const Navigation: FC<PathPrefixProps> = ({ pathPrefix }) => {
             <NavLink href={`${pathPrefix}/`}>Classic UI</NavLink>
           </NavItem>
         </Nav>
+        {extraNavItem}
       </Collapse>
     </Navbar>
   );

web/ui/react-app/src/pages/graph/PanelList.tsx

@@ -1,16 +1,22 @@
-import React, { Component, ChangeEvent } from 'react';
+import React, { Component, ChangeEvent, CSSProperties } from 'react';
 import { RouteComponentProps } from '@reach/router';
 
-import { Alert, Button, Col, Row } from 'reactstrap';
+import { Alert, Button, Col, Row, DropdownToggle, DropdownMenu, UncontrolledDropdown } from 'reactstrap';
 
 import Panel, { PanelOptions, PanelDefaultOptions } from './Panel';
 import Checkbox from '../../components/Checkbox';
 import PathPrefixProps from '../../types/PathPrefixProps';
 import { generateID, decodePanelOptionsFromQueryString, encodePanelOptionsToQueryString } from '../../utils';
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
+import { faCog } from '@fortawesome/free-solid-svg-icons';
 
 export type MetricGroup = { title: string; items: string[] };
 export type PanelMeta = { key: string; options: PanelOptions; id: string };
 
+interface PanelListProps {
+  setExtraNavItem: (item: React.ReactNode) => void;
+}
+
 interface PanelListState {
   panels: PanelMeta[];
   pastQueries: string[];
@@ -20,8 +26,8 @@ interface PanelListState {
   useLocalTime: boolean;
 }
 
-class PanelList extends Component<RouteComponentProps & PathPrefixProps, PanelListState> {
-  constructor(props: RouteComponentProps & PathPrefixProps) {
+class PanelList extends Component<RouteComponentProps & PathPrefixProps & PanelListProps, PanelListState> {
+  constructor(props: RouteComponentProps & PathPrefixProps & PanelListProps) {
     super(props);
 
     this.state = {
@@ -35,6 +41,8 @@ class PanelList extends Component<RouteComponentProps & PathPrefixProps, PanelLi
   }
 
   componentDidMount() {
+    this.props.setExtraNavItem(this.panelSettingsDropdown());
+
     !this.state.panels.length && this.addPanel();
     fetch(`${this.props.pathPrefix}/api/v1/label/__name__/values`, { cache: 'no-store', credentials: 'same-origin' })
       .then(resp => {
@@ -82,6 +90,10 @@ class PanelList extends Component<RouteComponentProps & PathPrefixProps, PanelLi
     this.updatePastQueries();
   }
 
+  componentWillUnmount() {
+    this.props.setExtraNavItem(null);
+  }
+
   isHistoryEnabled = () => JSON.parse(localStorage.getItem('enable-query-history') || 'false') as boolean;
 
   getHistoryItems = () => JSON.parse(localStorage.getItem('history') || '[]') as string[];
@@ -154,15 +166,18 @@ class PanelList extends Component<RouteComponentProps & PathPrefixProps, PanelLi
     );
   };
 
-  render() {
-    const { metricNames, pastQueries, timeDriftError, fetchMetricsError, panels } = this.state;
-    const { pathPrefix } = this.props;
+  panelSettingsDropdown() {
+    const wrapperStyles: CSSProperties = { margin: '3px 15px', alignSelf: 'center', whiteSpace: 'nowrap' };
+
     return (
-      <>
-        <Row className="mb-2">
+      <UncontrolledDropdown className="float-right">
+        <DropdownToggle>
+          <FontAwesomeIcon icon={faCog} fixedWidth />
+        </DropdownToggle>
+        <DropdownMenu right>
           <Checkbox
             id="query-history-checkbox"
-            wrapperStyles={{ margin: '0 0 0 15px', alignSelf: 'center' }}
+            wrapperStyles={wrapperStyles}
             onChange={this.toggleQueryHistory}
             defaultChecked={this.isHistoryEnabled()}
           >
@@ -170,13 +185,22 @@ class PanelList extends Component<RouteComponentProps & PathPrefixProps, PanelLi
           </Checkbox>
           <Checkbox
             id="use-local-time-checkbox"
-            wrapperStyles={{ margin: '0 0 0 15px', alignSelf: 'center' }}
+            wrapperStyles={wrapperStyles}
             onChange={this.toggleUseLocalTime}
             defaultChecked={this.useLocalTime()}
           >
             Use local time
           </Checkbox>
-        </Row>
+        </DropdownMenu>
+      </UncontrolledDropdown>
+    );
+  }
+
+  render() {
+    const { metricNames, pastQueries, timeDriftError, fetchMetricsError, panels } = this.state;
+    const { pathPrefix } = this.props;
+    return (
+      <>
         <Row>
           <Col>
             {timeDriftError && (