TSVB doesn't communicate it's index-patterns to dashboard

src/plugins/vis_type_timeseries/common/constants.ts

@@ -18,3 +18,4 @@
  */
 
 export const MAX_BUCKETS_SETTING = 'metrics:max_buckets';
+export const INDEXES_SEPARATOR = ',';

src/plugins/vis_type_timeseries/public/metrics_type.ts

@@ -25,7 +25,9 @@ import { EditorController } from './application';
 // @ts-ignore
 import { PANEL_TYPES } from '../common/panel_types';
 import { VisEditor } from './application/components/vis_editor_lazy';
-import { VIS_EVENT_TO_TRIGGER, VisGroups } from '../../visualizations/public';
+import { VIS_EVENT_TO_TRIGGER, VisGroups, VisParams } from '../../visualizations/public';
+import { getDataStart } from './services';
+import { INDEXES_SEPARATOR } from '../common/constants';
 
 export const metricsVisDefinition = {
   name: 'metrics',
@@ -84,5 +86,21 @@ export const metricsVisDefinition = {
     return [VIS_EVENT_TO_TRIGGER.applyFilter];
   },
   inspectorAdapters: {},
+  getUsedIndexPattern: async (params: VisParams) => {
+    const { indexPatterns } = getDataStart();
+    const indexes: string = params.index_pattern;
+
+    if (indexes) {
+      const cachedIndexes = await indexPatterns.getIdsWithTitle();
+      const ids = indexes
+        .split(INDEXES_SEPARATOR)
+        .map((title) => cachedIndexes.find((i) => i.title === title)?.id)
+        .filter((id) => id);
+
+      return Promise.all(ids.map((id) => indexPatterns.get(id!)));
+    }
+
+    return [];
+  },
   responseHandler: 'none',
 };

src/plugins/visualizations/public/embeddable/create_vis_embeddable_from_object.ts

@@ -41,6 +41,7 @@ import {
 import { VisualizeEmbeddableFactoryDeps } from './visualize_embeddable_factory';
 import { VISUALIZE_ENABLE_LABS_SETTING } from '../../common/constants';
 import { SavedVisualizationsLoader } from '../saved_visualizations';
+import { IndexPattern } from '../../../data/public';
 
 export const createVisEmbeddableFromObject = (deps: VisualizeEmbeddableFactoryDeps) => async (
   vis: Vis,
@@ -69,8 +70,14 @@ export const createVisEmbeddableFromObject = (deps: VisualizeEmbeddableFactoryDe
       return new DisabledLabEmbeddable(vis.title, input);
     }
 
-    const indexPattern = vis.data.indexPattern;
-    const indexPatterns = indexPattern ? [indexPattern] : [];
+    let indexPatterns: IndexPattern[] = [];
+
+    if (vis.type.getUsedIndexPattern) {
+      indexPatterns = await vis.type.getUsedIndexPattern(vis.params);
+    } else if (vis.data.indexPattern) {
+      indexPatterns = [vis.data.indexPattern];
+    }
+
     const editable = getCapabilities().visualize.save as boolean;
 
     return new VisualizeEmbeddable(

src/plugins/visualizations/public/vis.ts

@@ -137,7 +137,6 @@ export class Vis<TVisParams = VisParams> {
     if (state.params || typeChanged) {
       this.params = this.getParams(state.params);
     }
-
     if (state.data && state.data.searchSource) {
       this.data.searchSource = await getSearch().searchSource.create(state.data.searchSource!);
       this.data.indexPattern = this.data.searchSource.getField('index');

src/plugins/visualizations/public/vis_types/base_vis_type.ts

@@ -44,6 +44,7 @@ interface CommonBaseVisTypeOptions<TVisParams>
       | 'editorConfig'
       | 'hidden'
       | 'stage'
+      | 'getUsedIndexPattern'
       | 'useCustomNoDataScreen'
       | 'visConfig'
       | 'group'
@@ -96,6 +97,7 @@ export class BaseVisType<TVisParams = VisParams> implements VisType<TVisParams>
   public readonly responseHandler;
   public readonly hierarchicalData;
   public readonly setup;
+  public readonly getUsedIndexPattern;
   public readonly useCustomNoDataScreen;
   public readonly inspectorAdapters;
   public readonly toExpressionAst;
@@ -126,6 +128,7 @@ export class BaseVisType<TVisParams = VisParams> implements VisType<TVisParams>
     this.responseHandler = opts.responseHandler ?? 'none';
     this.setup = opts.setup;
     this.hierarchicalData = opts.hierarchicalData ?? false;
+    this.getUsedIndexPattern = opts.getUsedIndexPattern;
     this.useCustomNoDataScreen = opts.useCustomNoDataScreen ?? false;
     this.inspectorAdapters = opts.inspectorAdapters;
     this.toExpressionAst = opts.toExpressionAst;

src/plugins/visualizations/public/vis_types/types.ts

@@ -20,10 +20,11 @@
 import { IconType } from '@elastic/eui';
 import React from 'react';
 import { Adapters } from 'src/plugins/inspector';
+import { IndexPattern } from 'src/plugins/data/public';
 import { VisEditorConstructor } from 'src/plugins/visualize/public';
 import { ISchemas } from 'src/plugins/vis_default_editor/public';
 import { TriggerContextMapping } from '../../../ui_actions/public';
-import { Vis, VisToExpressionAst, VisualizationControllerConstructor } from '../types';
+import { Vis, VisParams, VisToExpressionAst, VisualizationControllerConstructor } from '../types';
 
 export interface VisTypeOptions {
   showTimePicker: boolean;
@@ -64,6 +65,13 @@ export interface VisType<TVisParams = unknown> {
    * If given, it will return the supported triggers for this vis.
    */
   readonly getSupportedTriggers?: () => Array<keyof TriggerContextMapping>;
+
+  /**
+   * Some visualizations are created without SearchSource and may change the used indexes during the visualization configuration.
+   * Using this method we can rewrite the standard mechanism for getting used indexes
+   */
+  readonly getUsedIndexPattern?: (visParams: VisParams) => IndexPattern[] | Promise<IndexPattern[]>;
+
   readonly isAccessible?: boolean;
   readonly requestHandler?: string | unknown;
   readonly responseHandler?: string | unknown;