Basic top nav bar for dashboard (#4108)

Basic top nav bar for dashboard

This PR will add basic structure to render top nav bar, including a basic implementation for dashboard app state. This is not functionality complete, but to help implement a basic working dashboard app as the first step.

Signed-off-by: abbyhu2000 <[email protected]>

src/plugins/dashboard/public/application/components/dashboard_editor.tsx

@@ -3,8 +3,212 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-import React from 'react';
+import React, { useEffect, useState } from 'react';
+import { useParams } from 'react-router-dom';
+import { EventEmitter } from 'events';
+import { EMPTY, Subscription, merge } from 'rxjs';
+import { catchError, distinctUntilChanged, map, mapTo, startWith, switchMap } from 'rxjs/operators';
+import deepEqual from 'fast-deep-equal';
+import { DashboardTopNav } from '../components/dashboard_top_nav';
+import { useChromeVisibility } from '../utils/use/use_chrome_visibility';
+import { useOpenSearchDashboards } from '../../../../opensearch_dashboards_react/public';
+import { useSavedDashboardInstance } from '../utils/use/use_saved_dashboard_instance';
+
+import { DashboardServices, SavedDashboardPanel } from '../../types';
+import {
+  DASHBOARD_CONTAINER_TYPE,
+  DashboardContainer,
+  DashboardContainerInput,
+  DashboardPanelState,
+} from '../embeddable';
+import {
+  ContainerOutput,
+  ErrorEmbeddable,
+  ViewMode,
+  isErrorEmbeddable,
+} from '../../embeddable_plugin';
+import { DashboardEmptyScreen, DashboardEmptyScreenProps } from '../dashboard_empty_screen';
+import { convertSavedDashboardPanelToPanelState } from '../lib/embeddable_saved_object_converters';
+import { useDashboardAppState } from '../utils/use/use_dashboard_app_state';
 
 export const DashboardEditor = () => {
-  return <div>Dashboard Editor</div>;
+  const { id: dashboardIdFromUrl } = useParams<{ id: string }>();
+  const { services } = useOpenSearchDashboards<DashboardServices>();
+  const { embeddable, data, dashboardConfig, embeddableCapabilities, uiSettings, http } = services;
+  const { query: queryService } = data;
+  const { visualizeCapabilities, mapsCapabilities } = embeddableCapabilities;
+  const timefilter = queryService.timefilter.timefilter;
+  const isChromeVisible = useChromeVisibility(services.chrome);
+  const [eventEmitter] = useState(new EventEmitter());
+
+  const { savedDashboardInstance } = useSavedDashboardInstance(
+    services,
+    eventEmitter,
+    isChromeVisible,
+    dashboardIdFromUrl
+  );
+
+  const { appState } = useDashboardAppState(services, eventEmitter, savedDashboardInstance);
+
+  const appStateData = appState?.get();
+  if (!appStateData) {
+    return null;
+  }
+  let dashboardContainer: DashboardContainer | undefined;
+  let inputSubscription: Subscription | undefined;
+  let outputSubscription: Subscription | undefined;
+
+  const dashboardDom = document.getElementById('dashboardViewport');
+  const dashboardFactory = embeddable.getEmbeddableFactory<
+    DashboardContainerInput,
+    ContainerOutput,
+    DashboardContainer
+  >(DASHBOARD_CONTAINER_TYPE);
+
+  const getShouldShowEditHelp = () => {
+    return (
+      !appStateData.panels.length &&
+      appStateData.viewMode === ViewMode.EDIT &&
+      !dashboardConfig.getHideWriteControls()
+    );
+  };
+
+  const getShouldShowViewHelp = () => {
+    return (
+      !appStateData.panels.length &&
+      appStateData.viewMode === ViewMode.VIEW &&
+      !dashboardConfig.getHideWriteControls()
+    );
+  };
+
+  const shouldShowUnauthorizedEmptyState = () => {
+    const readonlyMode =
+      !appStateData.panels.length &&
+      !getShouldShowEditHelp() &&
+      !getShouldShowViewHelp() &&
+      dashboardConfig.getHideWriteControls();
+    const userHasNoPermissions =
+      !appStateData.panels.length && !visualizeCapabilities.save && !mapsCapabilities.save;
+    return readonlyMode || userHasNoPermissions;
+  };
+
+  const getEmptyScreenProps = (
+    shouldShowEditHelp: boolean,
+    isEmptyInReadOnlyMode: boolean
+  ): DashboardEmptyScreenProps => {
+    const emptyScreenProps: DashboardEmptyScreenProps = {
+      onLinkClick: () => {}, // TODO
+      showLinkToVisualize: shouldShowEditHelp,
+      uiSettings,
+      http,
+    };
+    if (shouldShowEditHelp) {
+      emptyScreenProps.onVisualizeClick = () => {
+        alert('click'); // TODO
+      };
+    }
+    if (isEmptyInReadOnlyMode) {
+      emptyScreenProps.isReadonlyMode = true;
+    }
+    return emptyScreenProps;
+  };
+
+  const getDashboardInput = () => {
+    const embeddablesMap: {
+      [key: string]: DashboardPanelState;
+    } = {};
+    appStateData.panels.forEach((panel: SavedDashboardPanel) => {
+      embeddablesMap[panel.panelIndex] = convertSavedDashboardPanelToPanelState(panel);
+    });
+
+    const lastReloadRequestTime = 0;
+    return {
+      id: savedDashboardInstance.id || '',
+      filters: appStateData.filters,
+      hidePanelTitles: appStateData?.options.hidePanelTitles,
+      query: appStateData.query,
+      timeRange: {
+        ..._.cloneDeep(timefilter.getTime()),
+      },
+      refreshConfig: timefilter.getRefreshInterval(),
+      viewMode: appStateData.viewMode,
+      panels: embeddablesMap,
+      isFullScreenMode: appStateData?.fullScreenMode,
+      isEmbeddedExternally: false, // TODO
+      // isEmptyState: shouldShowEditHelp || shouldShowViewHelp || isEmptyInReadonlyMode,
+      isEmptyState: false, // TODO
+      useMargins: appStateData.options.useMargins,
+      lastReloadRequestTime, // TODO
+      title: appStateData.title,
+      description: appStateData.description,
+      expandedPanelId: appStateData.expandedPanelId,
+    };
+  };
+
+  if (dashboardFactory) {
+    dashboardFactory
+      .create(getDashboardInput())
+      .then((container: DashboardContainer | ErrorEmbeddable | undefined) => {
+        if (container && !isErrorEmbeddable(container)) {
+          dashboardContainer = container;
+
+          dashboardContainer.renderEmpty = () => {
+            const shouldShowEditHelp = getShouldShowEditHelp();
+            const shouldShowViewHelp = getShouldShowViewHelp();
+            const isEmptyInReadOnlyMode = shouldShowUnauthorizedEmptyState();
+            const isEmptyState = shouldShowEditHelp || shouldShowViewHelp || isEmptyInReadOnlyMode;
+            return isEmptyState ? (
+              <DashboardEmptyScreen
+                {...getEmptyScreenProps(shouldShowEditHelp, isEmptyInReadOnlyMode)}
+              />
+            ) : null;
+          };
+
+          outputSubscription = merge(
+            // output of dashboard container itself
+            dashboardContainer.getOutput$(),
+            // plus output of dashboard container children,
+            // children may change, so make sure we subscribe/unsubscribe with switchMap
+            dashboardContainer.getOutput$().pipe(
+              map(() => dashboardContainer!.getChildIds()),
+              distinctUntilChanged(deepEqual),
+              switchMap((newChildIds: string[]) =>
+                merge(
+                  ...newChildIds.map((childId) =>
+                    dashboardContainer!
+                      .getChild(childId)
+                      .getOutput$()
+                      .pipe(catchError(() => EMPTY))
+                  )
+                )
+              )
+            )
+          )
+            .pipe(
+              mapTo(dashboardContainer),
+              startWith(dashboardContainer) // to trigger initial index pattern update
+              // updateIndexPatternsOperator //TODO
+            )
+            .subscribe();
+
+          inputSubscription = dashboardContainer.getInput$().subscribe(() => {});
+
+          if (dashboardDom && container) {
+            container.render(dashboardDom);
+          }
+        }
+      });
+  }
+
+  return (
+    <div>
+      {savedDashboardInstance && appState && (
+        <DashboardTopNav
+          isChromeVisible={isChromeVisible}
+          savedDashboardInstance={savedDashboardInstance}
+          appState={appState}
+        />
+      )}
+    </div>
+  );
 };

src/plugins/dashboard/public/application/components/dashboard_top_nav.tsx

@@ -3,8 +3,115 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-import React from 'react';
+import React, { memo, useState, useEffect } from 'react';
+import { Filter } from 'src/plugins/data/public';
+import { useCallback } from 'react';
+import { useOpenSearchDashboards } from '../../../../opensearch_dashboards_react/public';
+import { getTopNavConfig } from '../top_nav/get_top_nav_config';
+import { DashboardAppState, DashboardServices, NavAction } from '../../types';
 
-export const DashboardTopNav = () => {
-  return <div>Dashboard Top Nav</div>;
+interface DashboardTopNavProps {
+  isChromeVisible: boolean;
+  savedDashboardInstance: any;
+  appState: DashboardAppState;
+}
+
+enum UrlParams {
+  SHOW_TOP_MENU = 'show-top-menu',
+  SHOW_QUERY_INPUT = 'show-query-input',
+  SHOW_TIME_FILTER = 'show-time-filter',
+  SHOW_FILTER_BAR = 'show-filter-bar',
+  HIDE_FILTER_BAR = 'hide-filter-bar',
+}
+
+const TopNav = ({ isChromeVisible, savedDashboardInstance, appState }: DashboardTopNavProps) => {
+  const [filters, setFilters] = useState<Filter[]>([]);
+  const [topNavMenu, setTopNavMenu] = useState<any>();
+  const [isFullScreenMode, setIsFullScreenMode] = useState<any>();
+
+  const { services } = useOpenSearchDashboards<DashboardServices>();
+  const { TopNavMenu } = services.navigation.ui;
+  const { data, dashboardConfig, setHeaderActionMenu } = services;
+  const { query: queryService } = data;
+
+  // TODO: this should base on URL
+  const isEmbeddedExternally = false;
+
+  // TODO: should use URL params
+  const shouldForceDisplay = (param: string): boolean => {
+    // const [searchParams] = useSearchParams();
+    return false;
+  };
+
+  const shouldShowNavBarComponent = (forceShow: boolean): boolean =>
+    (forceShow || isChromeVisible) && !appState?.fullScreenMode;
+
+  useEffect(() => {
+    setFilters(queryService.filterManager.getFilters());
+  }, [services, queryService]);
+
+  useEffect(() => {
+    const navActions: {
+      [key: string]: NavAction;
+    } = {}; // TODO: need to implement nav actions
+    setTopNavMenu(
+      getTopNavConfig(appState?.viewMode, navActions, dashboardConfig.getHideWriteControls())
+    );
+  }, [appState, services, dashboardConfig]);
+
+  useEffect(() => {
+    setIsFullScreenMode(appState?.fullScreenMode);
+  }, [appState, services]);
+
+  const shouldShowFilterBar = (forceHide: boolean): boolean =>
+    !forceHide && (filters!.length > 0 || !appState?.fullScreenMode);
+
+  const forceShowTopNavMenu = shouldForceDisplay(UrlParams.SHOW_TOP_MENU);
+  const forceShowQueryInput = shouldForceDisplay(UrlParams.SHOW_QUERY_INPUT);
+  const forceShowDatePicker = shouldForceDisplay(UrlParams.SHOW_TIME_FILTER);
+  const forceHideFilterBar = shouldForceDisplay(UrlParams.HIDE_FILTER_BAR);
+  const showTopNavMenu = shouldShowNavBarComponent(forceShowTopNavMenu);
+  const showQueryInput = shouldShowNavBarComponent(forceShowQueryInput);
+  const showDatePicker = shouldShowNavBarComponent(forceShowDatePicker);
+  const showQueryBar = showQueryInput || showDatePicker;
+  const showFilterBar = shouldShowFilterBar(forceHideFilterBar);
+  const showSearchBar = showQueryBar || showFilterBar;
+
+  // TODO: implement handleRefresh
+  const handleRefresh = useCallback((_payload: any, isUpdate?: boolean) => {
+    /* if (isUpdate === false) {
+        // The user can still request a reload in the query bar, even if the
+        // query is the same, and in that case, we have to explicitly ask for
+        // a reload, since no state changes will cause it.
+        lastReloadRequestTime = new Date().getTime();
+        const changes = getChangesFromAppStateForContainerState();
+    if (changes && dashboardContainer) {
+      dashboardContainer.updateInput(changes);
+    }*/
+  }, []);
+
+  return isChromeVisible ? (
+    <TopNavMenu
+      appName={'dashboard'}
+      savedQueryId={appState?.savedQuery}
+      config={showTopNavMenu ? topNavMenu : undefined}
+      className={isFullScreenMode ? 'osdTopNavMenu-isFullScreen' : undefined}
+      screenTitle={appState.title}
+      // showTopNavMenu={showTopNavMenu}
+      showSearchBar={showSearchBar}
+      showQueryBar={showQueryBar}
+      showQueryInput={showQueryInput}
+      showDatePicker={showDatePicker}
+      showFilterBar={showFilterBar}
+      useDefaultBehaviors={true}
+      indexPatterns={[]}
+      showSaveQuery={services.dashboardCapabilities.saveQuery as boolean}
+      savedQuery={undefined}
+      onSavedQueryIdChange={() => {}}
+      onQuerySubmit={handleRefresh}
+      setMenuMountPoint={isEmbeddedExternally ? undefined : setHeaderActionMenu}
+    />
+  ) : null;
 };
+
+export const DashboardTopNav = memo(TopNav);