Vega visualization renderer (#81606)

* Create vega to_ast function

* Create a custom vega renderer

* Fix sass error

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

src/plugins/vis_type_vega/public/components/vega_vis.scss

@@ -1,3 +1,11 @@
+.vgaVis__wrapper {
+  @include euiScrollBar;
+
+  display: flex;
+  flex: 1 1 0;
+  overflow: auto;
+}
+
 .vgaVis {
   display: flex;
   flex: 1 1 100%;

src/plugins/vis_type_vega/public/components/vega_vis_component.tsx

@@ -0,0 +1,85 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React, { useEffect, useMemo, useRef } from 'react';
+import { EuiResizeObserver } from '@elastic/eui';
+import { throttle } from 'lodash';
+
+import { IInterpreterRenderHandlers } from 'src/plugins/expressions';
+import { createVegaVisualization } from '../vega_visualization';
+import { VegaVisualizationDependencies } from '../plugin';
+import { VegaParser } from '../data_model/vega_parser';
+
+import './vega_vis.scss';
+
+interface VegaVisComponentProps {
+  deps: VegaVisualizationDependencies;
+  fireEvent: IInterpreterRenderHandlers['event'];
+  renderComplete: () => void;
+  visData: VegaParser;
+}
+
+type VegaVisController = InstanceType<ReturnType<typeof createVegaVisualization>>;
+
+const VegaVisComponent = ({ visData, fireEvent, renderComplete, deps }: VegaVisComponentProps) => {
+  const chartDiv = useRef<HTMLDivElement>(null);
+  const visController = useRef<VegaVisController | null>(null);
+
+  useEffect(() => {
+    if (chartDiv.current) {
+      const VegaVis = createVegaVisualization(deps);
+      visController.current = new VegaVis(chartDiv.current, fireEvent);
+    }
+
+    return () => {
+      visController.current?.destroy();
+      visController.current = null;
+    };
+  }, [deps, fireEvent]);
+
+  useEffect(() => {
+    if (visController.current) {
+      visController.current.render(visData).then(renderComplete);
+    }
+  }, [visData, renderComplete]);
+
+  const updateChartSize = useMemo(
+    () =>
+      throttle(() => {
+        if (visController.current) {
+          visController.current.render(visData).then(renderComplete);
+        }
+      }, 300),
+    [renderComplete, visData]
+  );
+
+  return (
+    <EuiResizeObserver onResize={updateChartSize}>
+      {(resizeRef) => (
+        <div className="vgaVis__wrapper" ref={resizeRef}>
+          <div ref={chartDiv} />
+        </div>
+      )}
+    </EuiResizeObserver>
+  );
+};
+
+// default export required for React.Lazy
+// eslint-disable-next-line import/no-default-export
+export { VegaVisComponent as default };

src/plugins/vis_type_vega/public/components/vega_vis_editor.tsx

@@ -30,6 +30,8 @@ import { VisParams } from '../vega_fn';
 import { VegaHelpMenu } from './vega_help_menu';
 import { VegaActionsMenu } from './vega_actions_menu';
 
+import './vega_editor.scss';
+
 const aceOptions = {
   maxLines: Infinity,
   highlightActiveLine: false,
@@ -102,4 +104,6 @@ function VegaVisEditor({ stateParams, setValue }: VisOptionsProps<VisParams>) {
   );
 }
 
-export { VegaVisEditor };
+// default export required for React.Lazy
+// eslint-disable-next-line import/no-default-export
+export { VegaVisEditor as default };

src/plugins/vis_type_vega/public/components/vega_vis_editor_lazy.tsx

@@ -0,0 +1,29 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React, { lazy } from 'react';
+
+import { VisOptionsProps } from 'src/plugins/vis_default_editor/public';
+import { VisParams } from '../vega_fn';
+
+const VegaVisEditor = lazy(() => import('./vega_vis_editor'));
+
+export const VegaVisEditorComponent = (props: VisOptionsProps<VisParams>) => (
+  <VegaVisEditor {...props} />
+);

src/plugins/vis_type_vega/public/index.scss

@@ -1,9 +0,0 @@
-// Prefix all styles with "vga" to avoid conflicts.
-// Examples
-//   vgaChart
-//   vgaChart__legend
-//   vgaChart__legend--small
-//   vgaChart__legend-isLoading
-
-@import './vega_vis';
-@import './vega_editor';

src/plugins/vis_type_vega/public/plugin.ts

@@ -35,10 +35,10 @@ import {
 import { createVegaFn } from './vega_fn';
 import { createVegaTypeDefinition } from './vega_type';
 import { IServiceSettings } from '../../maps_legacy/public';
-import './index.scss';
 import { ConfigSchema } from '../config';
 
 import { getVegaInspectorView } from './vega_inspector';
+import { getVegaVisRenderer } from './vega_vis_renderer';
 
 /** @internal */
 export interface VegaVisualizationDependencies {
@@ -93,6 +93,7 @@ export class VegaPlugin implements Plugin<Promise<void>, void> {
     inspector.registerView(getVegaInspectorView({ uiSettings: core.uiSettings }));
 
     expressions.registerFunction(() => createVegaFn(visualizationDependencies));
+    expressions.registerRenderer(getVegaVisRenderer(visualizationDependencies));
 
     visualizations.createBaseVisualization(createVegaTypeDefinition(visualizationDependencies));
   }

src/plugins/vis_type_vega/public/to_ast.ts

@@ -0,0 +1,32 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { buildExpression, buildExpressionFunction } from '../../expressions/public';
+import { Vis } from '../../visualizations/public';
+import { VegaExpressionFunctionDefinition, VisParams } from './vega_fn';
+
+export const toExpressionAst = (vis: Vis<VisParams>) => {
+  const vega = buildExpressionFunction<VegaExpressionFunctionDefinition>('vega', {
+    spec: vis.params.spec,
+  });
+
+  const ast = buildExpression([vega]);
+
+  return ast.toAst();
+};

src/plugins/vis_type_vega/public/vega_fn.ts

@@ -40,21 +40,23 @@ interface Arguments {
 
 export type VisParams = Required<Arguments>;
 
-interface RenderValue {
+export interface RenderValue {
   visData: VegaParser;
   visType: 'vega';
   visConfig: VisParams;
 }
 
-export const createVegaFn = (
+export type VegaExpressionFunctionDefinition = ExpressionFunctionDefinition<
-  dependencies: VegaVisualizationDependencies
-): ExpressionFunctionDefinition<
   'vega',
   Input,
   Arguments,
   Output,
   ExecutionContext<VegaInspectorAdapters>
-> => ({
+>;
+
+export const createVegaFn = (
+  dependencies: VegaVisualizationDependencies
+): VegaExpressionFunctionDefinition => ({
   name: 'vega',
   type: 'render',
   inputTypes: ['kibana_context', 'null'],
@@ -80,7 +82,7 @@ export const createVegaFn = (
 
     return {
       type: 'render',
-      as: 'visualization',
+      as: 'vega_vis',
       value: {
         visData: response,
         visType: 'vega',

src/plugins/vis_type_vega/public/vega_inspector/vega_data_inspector.tsx

@@ -41,7 +41,7 @@ const specLabel = i18n.translate('visTypeVega.inspector.specLabel', {
   defaultMessage: 'Spec',
 });
 
-export const VegaDataInspector = ({ adapters }: VegaDataInspectorProps) => {
+const VegaDataInspector = ({ adapters }: VegaDataInspectorProps) => {
   const tabs = [
     {
       id: 'data-viewer--id',
@@ -75,3 +75,7 @@ export const VegaDataInspector = ({ adapters }: VegaDataInspectorProps) => {
     />
   );
 };
+
+// default export required for React.Lazy
+// eslint-disable-next-line import/no-default-export
+export { VegaDataInspector as default };

src/plugins/vis_type_vega/public/vega_inspector/vega_inspector.tsx

@@ -16,14 +16,17 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-import React from 'react';
+import React, { lazy, Suspense } from 'react';
+import { EuiLoadingSpinner } from '@elastic/eui';
 
 import { i18n } from '@kbn/i18n';
 import { IUiSettingsClient } from 'kibana/public';
-import { VegaAdapter } from './vega_adapter';
-import { VegaDataInspector, VegaDataInspectorProps } from './vega_data_inspector';
 import { KibanaContextProvider } from '../../../kibana_react/public';
 import { Adapters, RequestAdapter, InspectorViewDescription } from '../../../inspector/public';
+import { VegaAdapter } from './vega_adapter';
+import type { VegaDataInspectorProps } from './vega_data_inspector';
+
+const VegaDataInspector = lazy(() => import('./vega_data_inspector'));
 
 export interface VegaInspectorAdapters extends Adapters {
   requests: RequestAdapter;
@@ -46,7 +49,9 @@ export const getVegaInspectorView = (dependencies: VegaInspectorViewDependencies
     },
     component: (props) => (
       <KibanaContextProvider services={dependencies}>
-        <VegaDataInspector {...(props as VegaDataInspectorProps)}> </VegaDataInspector>
+        <Suspense fallback={<EuiLoadingSpinner />}>
+          <VegaDataInspector {...(props as VegaDataInspectorProps)} />
+        </Suspense>
       </KibanaContextProvider>
     ),
   } as InspectorViewDescription);

src/plugins/vis_type_vega/public/vega_type.ts

@@ -21,22 +21,20 @@ import { i18n } from '@kbn/i18n';
 import { BaseVisTypeOptions } from 'src/plugins/visualizations/public';
 import { DefaultEditorSize } from '../../vis_default_editor/public';
 import { VegaVisualizationDependencies } from './plugin';
-import { VegaVisEditor } from './components';
 
 import { createVegaRequestHandler } from './vega_request_handler';
-// @ts-expect-error
-import { createVegaVisualization } from './vega_visualization';
 import { getDefaultSpec } from './default_spec';
 import { createInspectorAdapters } from './vega_inspector';
 import { VIS_EVENT_TO_TRIGGER } from '../../visualizations/public';
-
+import { toExpressionAst } from './to_ast';
+import { VisParams } from './vega_fn';
 import { getInfoMessage } from './components/experimental_map_vis_info';
+import { VegaVisEditorComponent } from './components/vega_vis_editor_lazy';
 
 export const createVegaTypeDefinition = (
   dependencies: VegaVisualizationDependencies
-): BaseVisTypeOptions => {
+): BaseVisTypeOptions<VisParams> => {
   const requestHandler = createVegaRequestHandler(dependencies);
-  const visualization = createVegaVisualization(dependencies);
 
   return {
     name: 'vega',
@@ -49,13 +47,12 @@ export const createVegaTypeDefinition = (
     icon: 'visVega',
     visConfig: { defaults: { spec: getDefaultSpec() } },
     editorConfig: {
-      optionsTemplate: VegaVisEditor,
+      optionsTemplate: VegaVisEditorComponent,
       enableAutoApply: true,
       defaultSize: DefaultEditorSize.MEDIUM,
     },
-    visualization,
     requestHandler,
-    responseHandler: 'none',
+    toExpressionAst,
     options: {
       showIndexSelection: false,
       showQueryBar: true,

src/plugins/vis_type_vega/public/vega_view/vega_base_view.d.ts

@@ -0,0 +1,40 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { DataPublicPluginStart } from 'src/plugins/data/public';
+import { IInterpreterRenderHandlers } from 'src/plugins/expressions';
+import { IServiceSettings } from 'src/plugins/maps_legacy/public';
+import { VegaParser } from '../data_model/vega_parser';
+
+interface VegaViewParams {
+  parentEl: HTMLDivElement;
+  fireEvent: IInterpreterRenderHandlers['event'];
+  vegaParser: VegaParser;
+  serviceSettings: IServiceSettings;
+  filterManager: DataPublicPluginStart['query']['filterManager'];
+  timefilter: DataPublicPluginStart['query']['timefilter']['timefilter'];
+  // findIndex: (index: string) => Promise<...>;
+}
+
+export class VegaBaseView {
+  constructor(params: VegaViewParams);
+  init(): Promise<void>;
+  onError(error: any): void;
+  destroy(): Promise<void>;
+}

src/plugins/vis_type_vega/public/vega_view/vega_base_view.js

@@ -63,7 +63,7 @@ export class VegaBaseView {
     this._parser = opts.vegaParser;
     this._serviceSettings = opts.serviceSettings;
     this._filterManager = opts.filterManager;
-    this._applyFilter = opts.applyFilter;
+    this._fireEvent = opts.fireEvent;
     this._timefilter = opts.timefilter;
     this._findIndex = opts.findIndex;
     this._view = null;
@@ -264,7 +264,7 @@ export class VegaBaseView {
     const indexId = await this._findIndex(index);
     const filter = esFilters.buildQueryFilter(query, indexId);
 
-    this._applyFilter({ filters: [filter] });
+    this._fireEvent({ name: 'applyFilter', data: { filters: [filter] } });
   }
 
   /**
@@ -301,19 +301,22 @@ export class VegaBaseView {
   setTimeFilterHandler(start, end) {
     const { from, to, mode } = VegaBaseView._parseTimeRange(start, end);
 
-    this._applyFilter({
+    this._fireEvent({
-      timeFieldName: '*',
+      name: 'applyFilter',
-      filters: [
+      data: {
-        {
+        timeFieldName: '*',
-          range: {
+        filters: [
-            '*': {
+          {
-              mode,
+            range: {
-              gte: from,
+              '*': {
-              lte: to,
+                mode,
+                gte: from,
+                lte: to,
+              },
             },
           },
-        },
+        ],
-      ],
+      },
     });
   }
 

src/plugins/vis_type_vega/public/vega_view/vega_map_view.d.ts

@@ -0,0 +1,22 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { VegaBaseView } from './vega_base_view';
+
+export class VegaMapView extends VegaBaseView {}

src/plugins/vis_type_vega/public/vega_view/vega_view.d.ts

@@ -17,4 +17,6 @@
  * under the License.
  */
 
-export { VegaVisEditor } from './vega_vis_editor';
+import { VegaBaseView } from './vega_base_view';
+
+export class VegaView extends VegaBaseView {}

src/plugins/vis_type_vega/public/vega_vis_renderer.tsx

@@ -0,0 +1,51 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React, { lazy } from 'react';
+import { render, unmountComponentAtNode } from 'react-dom';
+
+import { ExpressionRenderDefinition } from 'src/plugins/expressions';
+import { VisualizationContainer } from '../../visualizations/public';
+import { VegaVisualizationDependencies } from './plugin';
+import { RenderValue } from './vega_fn';
+const VegaVisComponent = lazy(() => import('./components/vega_vis_component'));
+
+export const getVegaVisRenderer: (
+  deps: VegaVisualizationDependencies
+) => ExpressionRenderDefinition<RenderValue> = (deps) => ({
+  name: 'vega_vis',
+  reuseDomNode: true,
+  render: (domNode, { visData }, handlers) => {
+    handlers.onDestroy(() => {
+      unmountComponentAtNode(domNode);
+    });
+
+    render(
+      <VisualizationContainer handlers={handlers}>
+        <VegaVisComponent
+          deps={deps}
+          fireEvent={handlers.event}
+          renderComplete={handlers.done}
+          visData={visData}
+        />
+      </VisualizationContainer>,
+      domNode
+    );
+  },
+});

src/plugins/vis_type_vega/public/vega_visualization.test.js

@@ -30,8 +30,6 @@ import vegaMapGraph from './test_utils/vega_map_test.json';
 import { VegaParser } from './data_model/vega_parser';
 import { SearchAPI } from './data_model/search_api';
 
-import { createVegaTypeDefinition } from './vega_type';
-
 import { setInjectedVars, setData, setSavedObjects, setNotifications } from './services';
 import { coreMock } from '../../../core/public/mocks';
 import { dataPluginMock } from '../../data/public/mocks';
@@ -49,9 +47,7 @@ jest.mock('./lib/vega', () => ({
 describe('VegaVisualizations', () => {
   let domNode;
   let VegaVisualization;
-  let vis;
   let vegaVisualizationDependencies;
-  let vegaVisType;
 
   let mockWidth;
   let mockedWidthValue;
@@ -91,22 +87,12 @@ describe('VegaVisualizations', () => {
       getServiceSettings: mockGetServiceSettings,
     };
 
-    vegaVisType = createVegaTypeDefinition(vegaVisualizationDependencies);
     VegaVisualization = createVegaVisualization(vegaVisualizationDependencies);
   });
 
   describe('VegaVisualization - basics', () => {
     beforeEach(async () => {
       setupDOM();
-
-      vis = {
-        type: vegaVisType,
-        API: {
-          events: {
-            applyFilter: jest.fn(),
-          },
-        },
-      };
     });
 
     afterEach(() => {
@@ -117,7 +103,7 @@ describe('VegaVisualizations', () => {
     test('should show vegalite graph and update on resize (may fail in dev env)', async () => {
       let vegaVis;
       try {
-        vegaVis = new VegaVisualization(domNode, vis);
+        vegaVis = new VegaVisualization(domNode, jest.fn());
 
         const vegaParser = new VegaParser(
           JSON.stringify(vegaliteGraph),
@@ -137,7 +123,7 @@ describe('VegaVisualizations', () => {
         mockedWidthValue = 256;
         mockedHeightValue = 256;
 
-        await vegaVis._vegaView.resize();
+        await vegaVis.vegaView.resize();
 
         expect(domNode.innerHTML).toMatchSnapshot();
       } finally {
@@ -148,7 +134,7 @@ describe('VegaVisualizations', () => {
     test('should show vega graph (may fail in dev env)', async () => {
       let vegaVis;
       try {
-        vegaVis = new VegaVisualization(domNode, vis);
+        vegaVis = new VegaVisualization(domNode, jest.fn());
         const vegaParser = new VegaParser(
           JSON.stringify(vegaGraph),
           new SearchAPI({
@@ -172,7 +158,7 @@ describe('VegaVisualizations', () => {
     test('should show vega blank rectangle on top of a map (vegamap)', async () => {
       let vegaVis;
       try {
-        vegaVis = new VegaVisualization(domNode, vis);
+        vegaVis = new VegaVisualization(domNode, jest.fn());
         const vegaParser = new VegaParser(
           JSON.stringify(vegaMapGraph),
           new SearchAPI({

src/plugins/vis_type_vega/public/vega_visualization.ts

@@ -17,28 +17,34 @@
  * under the License.
  */
 import { i18n } from '@kbn/i18n';
+import { IInterpreterRenderHandlers } from 'src/plugins/expressions';
+import { VegaParser } from './data_model/vega_parser';
+import { VegaVisualizationDependencies } from './plugin';
 import { getNotifications, getData, getSavedObjects } from './services';
+import type { VegaView } from './vega_view/vega_view';
 
-export const createVegaVisualization = ({ getServiceSettings }) =>
+export const createVegaVisualization = ({ getServiceSettings }: VegaVisualizationDependencies) =>
   class VegaVisualization {
-    constructor(el, vis) {
+    private readonly dataPlugin = getData();
-      this._el = el;
+    private readonly savedObjectsClient = getSavedObjects();
-      this._vis = vis;
+    private vegaView: InstanceType<typeof VegaView> | null = null;
 
-      this.savedObjectsClient = getSavedObjects();
+    constructor(
-      this.dataPlugin = getData();
+      private el: HTMLDivElement,
-    }
+      private fireEvent: IInterpreterRenderHandlers['event']
+    ) {}
 
     /**
      * Find index pattern by its title, of if not given, gets default
      * @param {string} [index]
      * @returns {Promise<string>} index id
      */
-    async findIndex(index) {
+    async findIndex(index: string) {
       const { indexPatterns } = this.dataPlugin;
       let idxObj;
 
       if (index) {
+        // @ts-expect-error
         idxObj = indexPatterns.findByTitle(this.savedObjectsClient, index);
         if (!idxObj) {
           throw new Error(
@@ -61,16 +67,10 @@ export const createVegaVisualization = ({ getServiceSettings }) =>
       return idxObj.id;
     }
 
-    /**
+    async render(visData: VegaParser) {
-     *
-     * @param {VegaParser} visData
-     * @param {*} status
-     * @returns {Promise<void>}
-     */
-    async render(visData) {
       const { toasts } = getNotifications();
 
-      if (!visData && !this._vegaView) {
+      if (!visData && !this.vegaView) {
         toasts.addWarning(
           i18n.translate('visTypeVega.visualization.unableToRenderWithoutDataWarningMessage', {
             defaultMessage: 'Unable to render without data',
@@ -82,8 +82,8 @@ export const createVegaVisualization = ({ getServiceSettings }) =>
       try {
         await this._render(visData);
       } catch (error) {
-        if (this._vegaView) {
+        if (this.vegaView) {
-          this._vegaView.onError(error);
+          this.vegaView.onError(error);
         } else {
           toasts.addError(error, {
             title: i18n.translate('visTypeVega.visualization.renderErrorTitle', {
@@ -94,20 +94,20 @@ export const createVegaVisualization = ({ getServiceSettings }) =>
       }
     }
 
-    async _render(vegaParser) {
+    async _render(vegaParser: VegaParser) {
       if (vegaParser) {
         // New data received, rebuild the graph
-        if (this._vegaView) {
+        if (this.vegaView) {
-          await this._vegaView.destroy();
+          await this.vegaView.destroy();
-          this._vegaView = null;
+          this.vegaView = null;
         }
 
         const serviceSettings = await getServiceSettings();
         const { filterManager } = this.dataPlugin.query;
         const { timefilter } = this.dataPlugin.query.timefilter;
         const vegaViewParams = {
-          parentEl: this._el,
+          parentEl: this.el,
-          applyFilter: this._vis.API.events.applyFilter,
+          fireEvent: this.fireEvent,
           vegaParser,
           serviceSettings,
           filterManager,
@@ -116,18 +116,17 @@ export const createVegaVisualization = ({ getServiceSettings }) =>
         };
 
         if (vegaParser.useMap) {
-          const services = { toastService: getNotifications().toasts };
           const { VegaMapView } = await import('./vega_view/vega_map_view');
-          this._vegaView = new VegaMapView(vegaViewParams, services);
+          this.vegaView = new VegaMapView(vegaViewParams);
         } else {
-          const { VegaView } = await import('./vega_view/vega_view');
+          const { VegaView: VegaViewClass } = await import('./vega_view/vega_view');
-          this._vegaView = new VegaView(vegaViewParams);
+          this.vegaView = new VegaViewClass(vegaViewParams);
         }
-        await this._vegaView.init();
+        await this.vegaView?.init();
       }
     }
 
     destroy() {
-      return this._vegaView && this._vegaView.destroy();
+      this.vegaView?.destroy();
     }
   };

src/plugins/visualizations/public/legacy/__snapshots__/build_pipeline.test.ts.snap

@@ -13,5 +13,3 @@ exports[`visualize loader pipeline helpers: build pipeline buildPipelineVisFunct
 exports[`visualize loader pipeline helpers: build pipeline buildPipelineVisFunction handles region_map function without buckets 1`] = `"regionmap visConfig='{\\"metric\\":{\\"accessor\\":0,\\"label\\":\\"\\",\\"format\\":{},\\"params\\":{},\\"aggType\\":\\"\\"}}' "`;
 
 exports[`visualize loader pipeline helpers: build pipeline buildPipelineVisFunction handles tile_map function 1`] = `"tilemap visConfig='{\\"metric\\":{},\\"dimensions\\":{\\"metric\\":{\\"accessor\\":0,\\"label\\":\\"\\",\\"format\\":{},\\"params\\":{},\\"aggType\\":\\"\\"},\\"geohash\\":1,\\"geocentroid\\":3}}' "`;
-
-exports[`visualize loader pipeline helpers: build pipeline buildPipelineVisFunction handles vega function 1`] = `"vega spec='this is a test' "`;

src/plugins/visualizations/public/legacy/build_pipeline.test.ts

@@ -94,14 +94,6 @@ describe('visualize loader pipeline helpers: build pipeline', () => {
       uiState = {};
     });
 
-    it('handles vega function', () => {
-      const vis = {
-        params: { spec: 'this is a test' },
-      };
-      const actual = buildPipelineVisFunction.vega(vis.params, schemasDef, uiState);
-      expect(actual).toMatchSnapshot();
-    });
-
     it('handles input_control_vis function', () => {
       const params = {
         some: 'nested',

src/plugins/visualizations/public/legacy/build_pipeline.ts

@@ -254,9 +254,6 @@ const adjustVislibDimensionFormmaters = (vis: Vis, dimensions: { y: any[] }): vo
 };
 
 export const buildPipelineVisFunction: BuildPipelineVisFunction = {
-  vega: (params) => {
-    return `vega ${prepareString('spec', params.spec)}`;
-  },
   input_control_vis: (params) => {
     return `input_control_vis ${prepareJson('visConfig', params)}`;
   },