SingleTopNav: Initial changes (#93694)

initial changes for single top nav

packages/grafana-ui/src/components/ToolbarButton/ToolbarButton.tsx

@@ -224,6 +224,7 @@ const getStyles = (theme: GrafanaTheme2) => {
       flexGrow: 1,
     }),
     content: css({
+      display: 'flex',
       flexGrow: 1,
     }),
     contentWithIcon: css({

public/app/core/components/AppChrome/AppChrome.tsx

@@ -3,7 +3,7 @@ import classNames from 'classnames';
 import { PropsWithChildren, useEffect } from 'react';
 
 import { GrafanaTheme2 } from '@grafana/data';
-import { locationSearchToObject, locationService } from '@grafana/runtime';
+import { config, locationSearchToObject, locationService } from '@grafana/runtime';
 import { useStyles2, LinkButton, useTheme2 } from '@grafana/ui';
 import { useGrafana } from 'app/core/context/GrafanaContext';
 import { useMediaQueryChange } from 'app/core/hooks/useMediaQueryChange';
@@ -17,6 +17,7 @@ import { DOCKED_LOCAL_STORAGE_KEY, DOCKED_MENU_OPEN_LOCAL_STORAGE_KEY } from './
 import { MegaMenu, MENU_WIDTH } from './MegaMenu/MegaMenu';
 import { NavToolbar } from './NavToolbar/NavToolbar';
 import { ReturnToPrevious } from './ReturnToPrevious/ReturnToPrevious';
+import { SingleTopBar } from './TopBar/SingleTopBar';
 import { TopSearchBar } from './TopBar/TopSearchBar';
 import { TOP_BAR_LEVEL_HEIGHT } from './types';
 
@@ -34,6 +35,7 @@ export function AppChrome({ children }: Props) {
   const menuDockedAndOpen = !state.chromeless && state.megaMenuDocked && state.megaMenuOpen;
   const scopesDashboardsState = useScopesDashboardsState();
   const isScopesDashboardsOpen = Boolean(scopesDashboardsState?.isEnabled && scopesDashboardsState?.isPanelOpened);
+  const isSingleTopNav = config.featureToggles.singleTopNav;
 
   useMediaQueryChange({
     breakpoint: dockedMenuBreakpoint,
@@ -92,6 +94,15 @@ export function AppChrome({ children }: Props) {
             Skip to main content
           </LinkButton>
           <header className={cx(styles.topNav)}>
+            {isSingleTopNav ? (
+              <SingleTopBar
+                sectionNav={state.sectionNav.node}
+                pageNav={state.pageNav}
+                onToggleMegaMenu={handleMegaMenu}
+                onToggleKioskMode={chrome.onToggleKioskMode}
+              />
+            ) : (
+              <>
                 {!searchBarHidden && <TopSearchBar />}
                 <NavToolbar
                   searchBarHidden={searchBarHidden}
@@ -102,6 +113,8 @@ export function AppChrome({ children }: Props) {
                   onToggleMegaMenu={handleMegaMenu}
                   onToggleKioskMode={chrome.onToggleKioskMode}
                 />
+              </>
+            )}
           </header>
         </>
       )}
@@ -140,11 +153,12 @@ export function AppChrome({ children }: Props) {
 }
 
 const getStyles = (theme: GrafanaTheme2, searchBarHidden: boolean) => {
+  const isSingleTopNav = config.featureToggles.singleTopNav;
   return {
     content: css({
       display: 'flex',
       flexDirection: 'column',
-      paddingTop: TOP_BAR_LEVEL_HEIGHT * 2,
+      paddingTop: isSingleTopNav ? TOP_BAR_LEVEL_HEIGHT : TOP_BAR_LEVEL_HEIGHT * 2,
       flexGrow: 1,
       height: 'auto',
     }),
@@ -167,13 +181,13 @@ const getStyles = (theme: GrafanaTheme2, searchBarHidden: boolean) => {
       },
       {
         position: 'fixed',
-        height: `calc(100% - ${searchBarHidden ? TOP_BAR_LEVEL_HEIGHT : TOP_BAR_LEVEL_HEIGHT * 2}px)`,
+        height: `calc(100% - ${searchBarHidden || isSingleTopNav ? TOP_BAR_LEVEL_HEIGHT : TOP_BAR_LEVEL_HEIGHT * 2}px)`,
         zIndex: 2,
       }
     ),
     scopesDashboardsContainer: css({
       position: 'fixed',
-      height: `calc(100% - ${searchBarHidden ? TOP_BAR_LEVEL_HEIGHT : TOP_BAR_LEVEL_HEIGHT * 2}px)`,
+      height: `calc(100% - ${searchBarHidden || isSingleTopNav ? TOP_BAR_LEVEL_HEIGHT : TOP_BAR_LEVEL_HEIGHT * 2}px)`,
       zIndex: 1,
     }),
     scopesDashboardsContainerDocked: css({

public/app/core/components/AppChrome/AppChromeMenu.tsx

@@ -6,6 +6,7 @@ import { useRef } from 'react';
 import CSSTransition from 'react-transition-group/CSSTransition';
 
 import { GrafanaTheme2 } from '@grafana/data';
+import { config } from '@grafana/runtime';
 import { useStyles2, useTheme2 } from '@grafana/ui';
 import { useGrafana } from 'app/core/context/GrafanaContext';
 import { KioskMode } from 'app/types';
@@ -76,7 +77,8 @@ export function AppChromeMenu({}: Props) {
 }
 
 const getStyles = (theme: GrafanaTheme2, searchBarHidden?: boolean) => {
-  const topPosition = searchBarHidden ? TOP_BAR_LEVEL_HEIGHT : TOP_BAR_LEVEL_HEIGHT * 2;
+  const topPosition =
+    searchBarHidden || config.featureToggles.singleTopNav ? TOP_BAR_LEVEL_HEIGHT : TOP_BAR_LEVEL_HEIGHT * 2;
 
   return {
     backdrop: css({

public/app/core/components/AppChrome/AppChromeService.tsx

@@ -213,7 +213,7 @@ export class AppChromeService {
   private getNextKioskMode() {
     const { kioskMode, searchBarHidden } = this.state.getValue();
 
-    if (searchBarHidden || kioskMode === KioskMode.TV) {
+    if (searchBarHidden || kioskMode === KioskMode.TV || config.featureToggles.singleTopNav) {
       appEvents.emit(AppEvents.alertInfo, [t('navigation.kiosk.tv-alert', 'Press ESC to exit kiosk mode')]);
       return KioskMode.Full;
     }

public/app/core/components/AppChrome/TopBar/SingleTopBar.tsx

@@ -0,0 +1,131 @@
+import { css } from '@emotion/css';
+import { cloneDeep } from 'lodash';
+import { memo } from 'react';
+
+import { GrafanaTheme2, NavModelItem } from '@grafana/data';
+import { Dropdown, Icon, ToolbarButton, useStyles2 } from '@grafana/ui';
+import { config } from 'app/core/config';
+import { contextSrv } from 'app/core/core';
+import { HOME_NAV_ID } from 'app/core/reducers/navModel';
+import { ScopesSelector } from 'app/features/scopes';
+import { useSelector } from 'app/types';
+
+import { Branding } from '../../Branding/Branding';
+import { Breadcrumbs } from '../../Breadcrumbs/Breadcrumbs';
+import { buildBreadcrumbs } from '../../Breadcrumbs/utils';
+import { enrichHelpItem } from '../MegaMenu/utils';
+import { NewsContainer } from '../News/NewsContainer';
+import { OrganizationSwitcher } from '../OrganizationSwitcher/OrganizationSwitcher';
+import { QuickAdd } from '../QuickAdd/QuickAdd';
+import { TOP_BAR_LEVEL_HEIGHT } from '../types';
+
+import { SignInLink } from './SignInLink';
+import { TopNavBarMenu } from './TopNavBarMenu';
+import { TopSearchBarCommandPaletteTrigger } from './TopSearchBarCommandPaletteTrigger';
+import { TopSearchBarSection } from './TopSearchBarSection';
+
+interface Props {
+  sectionNav: NavModelItem;
+  pageNav?: NavModelItem;
+  onToggleMegaMenu(): void;
+  onToggleKioskMode(): void;
+}
+
+export const SingleTopBar = memo(function SingleTopBar({
+  onToggleMegaMenu,
+  onToggleKioskMode,
+  pageNav,
+  sectionNav,
+}: Props) {
+  const styles = useStyles2(getStyles);
+  const navIndex = useSelector((state) => state.navIndex);
+
+  const helpNode = cloneDeep(navIndex['help']);
+  const enrichedHelpNode = helpNode ? enrichHelpItem(helpNode) : undefined;
+  const profileNode = navIndex['profile'];
+  const homeNav = useSelector((state) => state.navIndex)[HOME_NAV_ID];
+  const breadcrumbs = buildBreadcrumbs(sectionNav, pageNav, homeNav);
+
+  return (
+    <div className={styles.layout}>
+      <TopSearchBarSection>
+        <ToolbarButton narrow onClick={onToggleMegaMenu}>
+          <Branding.MenuLogo className={styles.img} />
+        </ToolbarButton>
+        <Breadcrumbs breadcrumbs={breadcrumbs} className={styles.breadcrumbsWrapper} />
+        <OrganizationSwitcher />
+        <ScopesSelector />
+      </TopSearchBarSection>
+
+      <TopSearchBarSection align="right">
+        <TopSearchBarCommandPaletteTrigger />
+        <QuickAdd />
+        {enrichedHelpNode && (
+          <Dropdown overlay={() => <TopNavBarMenu node={enrichedHelpNode} />} placement="bottom-end">
+            <ToolbarButton iconOnly icon="question-circle" aria-label="Help" />
+          </Dropdown>
+        )}
+        {config.newsFeedEnabled && <NewsContainer />}
+        {!contextSrv.user.isSignedIn && <SignInLink />}
+        {profileNode && (
+          <Dropdown overlay={() => <TopNavBarMenu node={profileNode} />} placement="bottom-end">
+            <ToolbarButton
+              className={styles.profileButton}
+              imgSrc={contextSrv.user.gravatarUrl}
+              imgAlt="User avatar"
+              aria-label="Profile"
+            />
+          </Dropdown>
+        )}
+        <ToolbarButton className={styles.kioskToggle} onClick={onToggleKioskMode} narrow aria-label="Enable kiosk mode">
+          <Icon name="angle-up" size="xl" />
+        </ToolbarButton>
+      </TopSearchBarSection>
+    </div>
+  );
+});
+
+const getStyles = (theme: GrafanaTheme2) => ({
+  layout: css({
+    height: TOP_BAR_LEVEL_HEIGHT,
+    display: 'flex',
+    gap: theme.spacing(1),
+    alignItems: 'center',
+    padding: theme.spacing(0, 1),
+    borderBottom: `1px solid ${theme.colors.border.weak}`,
+    justifyContent: 'space-between',
+
+    [theme.breakpoints.up('sm')]: {
+      gridTemplateColumns: '2fr minmax(240px, 1fr)', // TODO probably change these values
+      display: 'grid',
+
+      justifyContent: 'flex-start',
+    },
+  }),
+  breadcrumbsWrapper: css({
+    display: 'flex',
+    overflow: 'hidden',
+    [theme.breakpoints.down('sm')]: {
+      minWidth: '50%',
+    },
+  }),
+  img: css({
+    alignSelf: 'center',
+    height: theme.spacing(3),
+    width: theme.spacing(3),
+  }),
+  profileButton: css({
+    padding: theme.spacing(0, 0.25),
+    img: {
+      borderRadius: theme.shape.radius.circle,
+      height: '24px',
+      marginRight: 0,
+      width: '24px',
+    },
+  }),
+  kioskToggle: css({
+    [theme.breakpoints.down('lg')]: {
+      display: 'none',
+    },
+  }),
+});

public/app/core/context/GrafanaContext.ts

@@ -1,7 +1,7 @@
 import { createContext, useCallback, useContext } from 'react';
 
 import { GrafanaConfig } from '@grafana/data';
-import { LocationService, locationService, BackendSrv } from '@grafana/runtime';
+import { LocationService, locationService, BackendSrv, config } from '@grafana/runtime';
 
 import { AppChromeService } from '../components/AppChrome/AppChromeService';
 import { NewFrontendAssetsChecker } from '../services/NewFrontendAssetsChecker';
@@ -50,7 +50,7 @@ export function useChromeHeaderHeight() {
 
   if (kioskMode || chromeless) {
     return 0;
-  } else if (searchBarHidden) {
+  } else if (searchBarHidden || config.featureToggles.singleTopNav) {
     return SINGLE_HEADER_BAR_HEIGHT;
   } else {
     return SINGLE_HEADER_BAR_HEIGHT * 2;