[Lens] Show underlying data editor navigation

src/plugins/navigation/public/top_nav_menu/top_nav_menu_data.tsx

@@ -24,6 +24,8 @@ export interface TopNavMenuData {
   isLoading?: boolean;
   iconType?: string;
   iconSide?: EuiButtonProps['iconSide'];
+  target?: string;
+  href?: string;
 }
 
 export interface RegisteredTopNavMenuData extends TopNavMenuData {

src/plugins/navigation/public/top_nav_menu/top_nav_menu_item.tsx

@@ -50,12 +50,19 @@ export function TopNavMenuItem(props: TopNavMenuData) {
     className: props.className,
   };
 
+  // If the item specified a href, then override the suppress the onClick
+  // and make it become a regular link
+  const overrideProps =
+    props.target && props.href
+      ? { onClick: undefined, href: props.href, target: props.target }
+      : {};
+
   const btn = props.emphasize ? (
     <EuiButton size="s" {...commonButtonProps} fill>
       {getButtonContainer()}
     </EuiButton>
   ) : (
-    <EuiHeaderLink size="s" color="primary" {...commonButtonProps}>
+    <EuiHeaderLink size="s" color="primary" {...commonButtonProps} {...overrideProps}>
       {getButtonContainer()}
     </EuiHeaderLink>
   );

test/functional/services/filter_bar.ts

@@ -103,6 +103,11 @@ export class FilterBarService extends FtrService {
     return filters.length;
   }
 
+  public async getFiltersLabel(): Promise<string[]> {
+    const filters = await this.testSubjects.findAll('~filter');
+    return Promise.all(filters.map((filter) => filter.getVisibleText()));
+  }
+
   /**
    * Adds a filter to the filter bar.
    *

x-pack/plugins/lens/kibana.json

@@ -28,7 +28,8 @@
     "taskManager",
     "globalSearch",
     "savedObjectsTagging",
-    "spaces"
+    "spaces",
+    "discover"
   ],
   "configPath": [
     "xpack",

x-pack/plugins/lens/public/app_plugin/lens_top_nav.tsx

@@ -28,10 +28,16 @@ import {
   DispatchSetState,
 } from '../state_management';
 import { getIndexPatternsObjects, getIndexPatternsIds, getResolvedDateRange } from '../utils';
+import {
+  combineQueryAndFilters,
+  getLayerMetaInfo,
+  getShowUnderlyingDataLabel,
+} from './show_underlying_data';
 
 function getLensTopNavConfig(options: {
   showSaveAndReturn: boolean;
   enableExportToCSV: boolean;
+  showOpenInDiscover?: boolean;
   showCancel: boolean;
   isByValueMode: boolean;
   allowByValue: boolean;
@@ -46,6 +52,7 @@ function getLensTopNavConfig(options: {
     showCancel,
     allowByValue,
     enableExportToCSV,
+    showOpenInDiscover,
     showSaveAndReturn,
     savingToLibraryPermitted,
     savingToDashboardPermitted,
@@ -90,6 +97,21 @@ function getLensTopNavConfig(options: {
     });
   }
 
+  if (showOpenInDiscover) {
+    topNavMenu.push({
+      label: getShowUnderlyingDataLabel(),
+      run: () => {},
+      testId: 'lnsApp_openInDiscover',
+      description: i18n.translate('xpack.lens.app.openInDiscoverAriaLabel', {
+        defaultMessage: 'Open underlying data in Discover',
+      }),
+      disableButton: Boolean(tooltips.showUnderlyingDataWarning()),
+      tooltip: tooltips.showUnderlyingDataWarning,
+      target: '_blank',
+      href: actions.getUnderlyingDataUrl(),
+    });
+  }
+
   topNavMenu.push({
     label: i18n.translate('xpack.lens.app.inspect', {
       defaultMessage: 'Inspect',
@@ -183,6 +205,7 @@ export const LensTopNavMenu = ({
     uiSettings,
     application,
     attributeService,
+    discover,
     dashboardFeatureFlag,
   } = useKibana<LensAppServices>().services;
 
@@ -290,6 +313,26 @@ export const LensTopNavMenu = ({
     filters,
     initialContext,
   ]);
+
+  const layerMetaInfo = useMemo(() => {
+    if (!activeDatasourceId || !discover) {
+      return;
+    }
+    return getLayerMetaInfo(
+      datasourceMap[activeDatasourceId],
+      datasourceStates[activeDatasourceId].state,
+      activeData,
+      application.capabilities
+    );
+  }, [
+    activeData,
+    activeDatasourceId,
+    datasourceMap,
+    datasourceStates,
+    discover,
+    application.capabilities,
+  ]);
+
   const topNavConfig = useMemo(() => {
     const baseMenuEntries = getLensTopNavConfig({
       showSaveAndReturn:
@@ -299,6 +342,7 @@ export const LensTopNavMenu = ({
             (dashboardFeatureFlag.allowByValueEmbeddables || Boolean(initialInput))
         ) || Boolean(initialContextIsEmbedded),
       enableExportToCSV: Boolean(isSaveable && activeData && Object.keys(activeData).length),
+      showOpenInDiscover: Boolean(layerMetaInfo?.isVisible),
       isByValueMode: getIsByValueMode(),
       allowByValue: dashboardFeatureFlag.allowByValueEmbeddables,
       showCancel: Boolean(isLinkedToOriginatingApp),
@@ -321,6 +365,9 @@ export const LensTopNavMenu = ({
           }
           return undefined;
         },
+        showUnderlyingDataWarning: () => {
+          return layerMetaInfo?.error;
+        },
       },
       actions: {
         inspect: () => lensInspector.inspect({ title }),
@@ -388,6 +435,31 @@ export const LensTopNavMenu = ({
             redirectToOrigin();
           }
         },
+        getUnderlyingDataUrl: () => {
+          if (!layerMetaInfo) {
+            return;
+          }
+          const { error, meta } = layerMetaInfo;
+          // If Discover is not available, return
+          // If there's no data, return
+          if (error || !discover || !meta) {
+            return;
+          }
+          const { filters: newFilters, query: newQuery } = combineQueryAndFilters(
+            query,
+            filters,
+            meta,
+            indexPatterns
+          );
+
+          return discover.locator!.getRedirectUrl({
+            indexPatternId: meta.id,
+            timeRange: data.query.timefilter.timefilter.getTime(),
+            filters: newFilters,
+            query: newQuery,
+            columns: meta.columns,
+          });
+        },
       },
     });
     return [...(additionalMenuEntries || []), ...baseMenuEntries];
@@ -398,6 +470,7 @@ export const LensTopNavMenu = ({
     initialContextIsEmbedded,
     isSaveable,
     activeData,
+    layerMetaInfo,
     getIsByValueMode,
     savingToLibraryPermitted,
     savingToDashboardPermitted,
@@ -414,6 +487,11 @@ export const LensTopNavMenu = ({
     setIsSaveModalVisible,
     goBackToOriginatingApp,
     redirectToOrigin,
+    discover,
+    query,
+    filters,
+    indexPatterns,
+    data.query.timefilter.timefilter,
   ]);
 
   const onQuerySubmitWrapped = useCallback(

x-pack/plugins/lens/public/app_plugin/mounter.tsx

@@ -61,6 +61,7 @@ export async function getLensServices(
     usageCollection,
     fieldFormats,
     spaces,
+    discover,
   } = startDependencies;
 
   const storage = new Storage(localStorage);
@@ -95,6 +96,7 @@ export async function getLensServices(
     // Temporarily required until the 'by value' paradigm is default.
     dashboardFeatureFlag: startDependencies.dashboard.dashboardFeatureFlagConfig,
     spaces,
+    discover,
   };
 }
 
@@ -114,8 +116,10 @@ export async function mountApp(
     getPresentationUtilContext,
     topNavMenuEntryGenerators,
   } = mountProps;
-  const [coreStart, startDependencies] = await core.getStartServices();
-  const instance = await createEditorFrame();
+  const [[coreStart, startDependencies], instance] = await Promise.all([
+    core.getStartServices(),
+    createEditorFrame(),
+  ]);
   const historyLocationState = params.history.location.state as HistoryLocationState;
 
   const lensServices = await getLensServices(coreStart, startDependencies, attributeService);