Fix missing TSVB markdown variables

src/core_plugins/metrics/public/components/markdown_editor.js

@@ -37,17 +37,30 @@ import {
 } from '@elastic/eui';
 
 class MarkdownEditor extends Component {
-  constructor(props) {
-    super(props);
-    this.handleChange = this.handleChange.bind(this);
-    this.handleOnLoad = this.handleOnLoad.bind(this);
+  state = {
+    visData: null,
+  };
+  subscription = null;
+
+  componentDidMount() {
+    if(this.props.visData$) {
+      this.subscription = this.props.visData$.subscribe((data) => {
+        this.setState({ visData: data });
+      });
+    }
   }
 
-  handleChange(value) {
+  componentWillUnmount() {
+    if(this.subscription) {
+      this.subscription.unsubscribe();
+    }
+  }
+
+  handleChange = (value) => {
     this.props.onChange({ markdown: value });
   }
 
-  handleOnLoad(ace) {
+  handleOnLoad = (ace) => {
     this.ace = ace;
   }
 
@@ -58,7 +71,11 @@ class MarkdownEditor extends Component {
   }
 
   render() {
-    const { model, visData, dateFormat } = this.props;
+    const { visData } = this.state;
+    if (!visData) {
+      return null;
+    }
+    const { model, dateFormat } = this.props;
     const series = _.get(visData, `${model.id}.series`, []);
     const variables = convertSeriesToVars(series, model, dateFormat, this.props.getConfig);
     const rows = [];
@@ -174,8 +191,8 @@ class MarkdownEditor extends Component {
 MarkdownEditor.propTypes = {
   onChange: PropTypes.func,
   model: PropTypes.object,
-  visData: PropTypes.object,
-  dateFormat: PropTypes.string
+  dateFormat: PropTypes.string,
+  visData$: PropTypes.object,
 };
 
 export default MarkdownEditor;

src/core_plugins/metrics/public/components/panel_config.js

@@ -48,8 +48,8 @@ PanelConfig.propTypes = {
   fields: PropTypes.object,
   model: PropTypes.object,
   onChange: PropTypes.func,
-  visData: PropTypes.object,
-  dateFormat: PropTypes.string
+  dateFormat: PropTypes.string,
+  visData$: PropTypes.object,
 };
 
 export default PanelConfig;

src/core_plugins/metrics/public/components/panel_config/gauge.js

@@ -218,7 +218,6 @@ GaugePanelConfig.propTypes = {
   fields: PropTypes.object,
   model: PropTypes.object,
   onChange: PropTypes.func,
-  visData: PropTypes.object,
 };
 
 export default GaugePanelConfig;

src/core_plugins/metrics/public/components/panel_config/markdown.js

@@ -197,7 +197,6 @@ MarkdownPanelConfig.propTypes = {
   fields: PropTypes.object,
   model: PropTypes.object,
   onChange: PropTypes.func,
-  visData: PropTypes.object,
   dateFormat: PropTypes.string
 };
 

src/core_plugins/metrics/public/components/panel_config/metric.js

@@ -134,7 +134,6 @@ MetricPanelConfig.propTypes = {
   fields: PropTypes.object,
   model: PropTypes.object,
   onChange: PropTypes.func,
-  visData: PropTypes.object,
 };
 
 export default MetricPanelConfig;

src/core_plugins/metrics/public/components/panel_config/table.js

@@ -172,7 +172,6 @@ TablePanelConfig.propTypes = {
   fields: PropTypes.object,
   model: PropTypes.object,
   onChange: PropTypes.func,
-  visData: PropTypes.object,
 };
 
 export default TablePanelConfig;

src/core_plugins/metrics/public/components/panel_config/timeseries.js

@@ -232,7 +232,6 @@ TimeseriesPanelConfig.propTypes = {
   fields: PropTypes.object,
   model: PropTypes.object,
   onChange: PropTypes.func,
-  visData: PropTypes.object,
 };
 
 export default TimeseriesPanelConfig;

src/core_plugins/metrics/public/components/panel_config/top_n.js

@@ -154,7 +154,6 @@ TopNPanelConfig.propTypes = {
   fields: PropTypes.object,
   model: PropTypes.object,
   onChange: PropTypes.func,
-  visData: PropTypes.object,
 };
 
 export default TopNPanelConfig;

src/core_plugins/metrics/public/components/vis_editor.js

@@ -19,6 +19,8 @@
 
 import PropTypes from 'prop-types';
 import React, { Component } from 'react';
+import * as Rx from 'rxjs';
+import { share } from 'rxjs/operators';
 import VisEditorVisualization from './vis_editor_visualization';
 import Visualization from './visualization';
 import VisPicker from './vis_picker';
@@ -46,6 +48,8 @@ class VisEditor extends Component {
     this.handleUiState = this.handleUiState.bind(this, props.vis);
     this.handleAppStateChange = this.handleAppStateChange.bind(this);
     this.getConfig = (...args) => props.config.get(...args);
+    this.visDataSubject = new Rx.Subject();
+    this.visData$ = this.visDataSubject.asObservable().pipe(share());
   }
 
   handleUiState(vis, ...args) {
@@ -116,9 +120,15 @@ class VisEditor extends Component {
     this.setState({ autoApply: event.target.checked });
   }
 
+  onDataChange = (data) => {
+    this.visDataSubject.next(data);
+  }
+
   render() {
     if (!this.props.isEditorMode) {
-      if (!this.props.vis.params || !this.props.visData) return null;
+      if (!this.props.vis.params || !this.props.visData) {
+        return null;
+      }
       const reversed = this.state.reversed;
       return (
         <Visualization
@@ -137,7 +147,7 @@ class VisEditor extends Component {
 
     const { model } = this.state;
 
-    if (model && this.props.visData) {
+    if (model) {
       return (
         <div className="vis_editor">
           <div className="vis-editor-hide-for-reporting">
@@ -159,12 +169,13 @@ class VisEditor extends Component {
             title={this.props.vis.title}
             description={this.props.vis.description}
             dateFormat={this.props.config.get('dateFormat')}
+            onDataChange={this.onDataChange}
           />
           <div className="vis-editor-hide-for-reporting">
             <PanelConfig
               fields={this.state.visFields}
               model={model}
-              visData={this.props.visData}
+              visData$={this.visData$}
               dateFormat={this.props.config.get('dateFormat')}
               onChange={this.handleChange}
               getConfig={this.getConfig}

src/core_plugins/metrics/public/components/vis_editor_visualization.js

@@ -39,6 +39,7 @@ class VisEditorVisualization extends Component {
     this.onSizeHandleKeyDown = this.onSizeHandleKeyDown.bind(this);
 
     this._visEl = React.createRef();
+    this._subscription = null;
   }
 
   handleMouseDown() {
@@ -67,6 +68,9 @@ class VisEditorVisualization extends Component {
     if (this._handler) {
       this._handler.destroy();
     }
+    if(this._subscription) {
+      this._subscription.unsubscribe();
+    }
   }
 
   onUpdate = () => {
@@ -90,6 +94,10 @@ class VisEditorVisualization extends Component {
         appState: this.props.appState,
       });
 
+      this._subscription = this._handler.data$.subscribe((data) => {
+        this.props.onDataChange(data);
+      });
+
       if (this._handlerUpdateHasAlreadyBeenTriggered) {
         this.onUpdate();
       }

src/core_plugins/metrics/public/components/vis_editor_visualization.test.js

@@ -29,7 +29,10 @@ describe('getVisualizeLoader', () => {
   beforeEach(() => {
     updateStub = jest.fn();
     const handlerMock = {
-      update: updateStub
+      update: updateStub,
+      data$: {
+        subscribe: () => {}
+      }
     };
     const loaderMock = {
       embedVisualizationWithSavedObject: () => {

src/ui/public/visualize/loader/embedded_visualize_handler.ts

@@ -19,6 +19,9 @@
 
 import { EventEmitter } from 'events';
 import { debounce } from 'lodash';
+import * as Rx from 'rxjs';
+import { share } from 'rxjs/operators';
+import { Inspector } from '../../inspector';
 import { Adapters } from '../../inspector/types';
 import { PersistedState } from '../../persisted_state';
 import { IPrivate } from '../../private';
@@ -29,7 +32,6 @@ import { RequestHandlerParams, Vis } from '../../vis';
 import { visualizationLoader } from './visualization_loader';
 import { VisualizeDataLoader } from './visualize_data_loader';
 
-import { Inspector } from '../../inspector';
 import { DataAdapter, RequestAdapter } from '../../inspector/adapters';
 
 import { VisSavedObject, VisualizeLoaderParams, VisualizeUpdateParams } from './types';
@@ -47,6 +49,14 @@ const LOADING_ATTRIBUTE = 'data-loading';
  * with the visualization.
  */
 export class EmbeddedVisualizeHandler {
+  /**
+   * This observable will emit every time new data is loaded for the
+   * visualization. The emitted value is the loaded data after it has
+   * been transformed by the visualization's response handler.
+   * This should not be used by any plugin.
+   * @ignore
+   */
+  public readonly data$: Rx.Observable<any>;
   private vis: Vis;
   private loaded: boolean = false;
   private destroyed: boolean = false;
@@ -69,6 +79,7 @@ export class EmbeddedVisualizeHandler {
   private readonly appState?: AppState;
   private uiState: PersistedState;
   private dataLoader: VisualizeDataLoader;
+  private dataSubject: Rx.Subject<any>;
   private inspectorAdapters: Adapters = {};
 
   constructor(
@@ -117,6 +128,9 @@ export class EmbeddedVisualizeHandler {
     this.vis.openInspector = this.openInspector;
     this.vis.hasInspector = this.hasInspector;
 
+    this.dataSubject = new Rx.Subject();
+    this.data$ = this.dataSubject.asObservable().pipe(share());
+
     this.render();
   }
 
@@ -313,7 +327,10 @@ export class EmbeddedVisualizeHandler {
     this.dataLoaderParams.forceFetch = forceFetch;
     this.dataLoaderParams.inspectorAdapters = this.inspectorAdapters;
 
-    return this.dataLoader.fetch(this.dataLoaderParams);
+    return this.dataLoader.fetch(this.dataLoaderParams).then(data => {
+      this.dataSubject.next(data);
+      return data;
+    });
   };
 
   private render = (visData: any = null) => {