[Discover] Remove Angular from doc viewer (#109368)

* Remove angular from doc viewer

* Remove types

* Remove plugin_functional for angular doc_view, since testing angular is no longer necessary

api_docs/discover.json

@@ -1052,8 +1052,7 @@
           "description": [],
           "signature": [
             "{ addDocView(docViewRaw: ComponentDocViewInput | ",
-            "RenderDocViewInput",
-            " | DirectiveDocViewInput | ",
+            "RenderDocViewInput |",
             "DocViewInputFn",
             "): void; }"
           ],
@@ -1391,4 +1390,4 @@
     ],
     "objects": []
   }
-}
+}

src/plugins/discover/public/application/doc_views/doc_views_helpers.tsx

@@ -1,85 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0 and the Server Side Public License, v 1; you may not use this file except
- * in compliance with, at your election, the Elastic License 2.0 or the Server
- * Side Public License, v 1.
- */
-
-import { auto, IController } from 'angular';
-import React from 'react';
-import { render } from 'react-dom';
-import angular, { ICompileService } from 'angular';
-import { DocViewRenderProps, AngularScope, AngularDirective } from './doc_views_types';
-import { DocViewerError } from '../components/doc_viewer/doc_viewer_render_error';
-
-/**
- * Compiles and injects the give angular template into the given dom node
- * returns a function to cleanup the injected angular element
- */
-export async function injectAngularElement(
-  domNode: Element,
-  template: string,
-  scopeProps: DocViewRenderProps,
-  Controller: IController,
-  getInjector: () => Promise<auto.IInjectorService>
-): Promise<() => void> {
-  const $injector = await getInjector();
-  const rootScope: AngularScope = $injector.get('$rootScope');
-  const $compile: ICompileService = $injector.get('$compile');
-  const newScope = Object.assign(rootScope.$new(), scopeProps);
-
-  if (typeof Controller === 'function') {
-    // when a controller is defined, expose the value it produces to the view as `$ctrl`
-    // see: https://docs.angularjs.org/api/ng/provider/$compileProvider#component
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    (newScope as any).$ctrl = $injector.instantiate(Controller, {
-      $scope: newScope,
-    });
-  }
-
-  const $target = angular.element(domNode);
-  const $element = angular.element(template);
-
-  newScope.$apply(() => {
-    const linkFn = $compile($element);
-    $target.empty().append($element);
-    linkFn(newScope);
-  });
-
-  return () => {
-    newScope.$destroy();
-  };
-}
-/**
- * Converts a given legacy angular directive to a render function
- * for usage in a react component. Note that the rendering is async
- */
-export function convertDirectiveToRenderFn(
-  directive: AngularDirective,
-  getInjector: () => Promise<auto.IInjectorService>
-) {
-  return (domNode: Element, props: DocViewRenderProps) => {
-    let rejected = false;
-
-    const cleanupFnPromise = injectAngularElement(
-      domNode,
-      directive.template,
-      props,
-      directive.controller,
-      getInjector
-    );
-    cleanupFnPromise.catch((e) => {
-      rejected = true;
-      render(<DocViewerError error={e} />, domNode);
-    });
-
-    return () => {
-      if (!rejected) {
-        // for cleanup
-        // http://roubenmeschian.com/rubo/?p=51
-        cleanupFnPromise.then((cleanup) => cleanup());
-      }
-    };
-  };
-}

src/plugins/discover/public/application/doc_views/doc_views_registry.ts

@@ -6,33 +6,16 @@
  * Side Public License, v 1.
  */
 
-import { auto } from 'angular';
-import { convertDirectiveToRenderFn } from './doc_views_helpers';
 import { DocView, DocViewInput, ElasticSearchHit, DocViewInputFn } from './doc_views_types';
 
 export class DocViewsRegistry {
   private docViews: DocView[] = [];
-  private angularInjectorGetter: (() => Promise<auto.IInjectorService>) | null = null;
-
-  setAngularInjectorGetter = (injectorGetter: () => Promise<auto.IInjectorService>) => {
-    this.angularInjectorGetter = injectorGetter;
-  };
 
   /**
    * Extends and adds the given doc view to the registry array
    */
   addDocView(docViewRaw: DocViewInput | DocViewInputFn) {
     const docView = typeof docViewRaw === 'function' ? docViewRaw() : docViewRaw;
-    if (docView.directive) {
-      // convert angular directive to render function for backwards compatibility
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
-      (docView.render as any) = convertDirectiveToRenderFn(docView.directive as any, () => {
-        if (!this.angularInjectorGetter) {
-          throw new Error('Angular was not initialized');
-        }
-        return this.angularInjectorGetter();
-      });
-    }
     if (typeof docView.shouldShow !== 'function') {
       docView.shouldShow = () => true;
     }

src/plugins/discover/public/application/doc_views/doc_views_types.ts

@@ -7,17 +7,10 @@
  */
 
 import { ComponentType } from 'react';
-import { IScope } from 'angular';
+
 import type { estypes } from '@elastic/elasticsearch';
 import { IndexPattern } from '../../../../data/public';
 
-export interface AngularDirective {
-  controller: (...injectedServices: unknown[]) => void;
-  template: string;
-}
-
-export type AngularScope = IScope;
-
 export type ElasticSearchHit<T = unknown> = estypes.SearchHit<T>;
 
 export interface FieldMapping {
@@ -67,13 +60,7 @@ interface ComponentDocViewInput extends BaseDocViewInput {
   directive?: undefined;
 }
 
-interface DirectiveDocViewInput extends BaseDocViewInput {
-  component?: undefined;
-  render?: undefined;
-  directive: ng.IDirective;
-}
-
-export type DocViewInput = ComponentDocViewInput | RenderDocViewInput | DirectiveDocViewInput;
+export type DocViewInput = ComponentDocViewInput | RenderDocViewInput;
 
 export type DocView = DocViewInput & {
   shouldShow: NonNullable<DocViewInput['shouldShow']>;

src/plugins/discover/public/plugin.tsx

@@ -317,7 +317,6 @@ export class DiscoverPlugin
       stopUrlTracker();
     };
 
-    this.docViewsRegistry.setAngularInjectorGetter(this.getEmbeddableInjector);
     core.application.register({
       id: 'discover',
       title: 'Discover',

test/plugin_functional/plugins/doc_views_plugin/kibana.json

@@ -1,8 +0,0 @@
-{
-  "id": "docViewPlugin",
-  "version": "0.0.1",
-  "kibanaVersion": "kibana",
-  "server": false,
-  "ui": true,
-  "requiredPlugins": ["discover"]
-}

test/plugin_functional/plugins/doc_views_plugin/package.json

@@ -1,14 +0,0 @@
-{
-  "name": "docViewPlugin",
-  "version": "1.0.0",
-  "main": "target/test/plugin_functional/plugins/doc_views_plugin",
-  "kibana": {
-    "version": "kibana",
-    "templateVersion": "1.0.0"
-  },
-  "license": "SSPL-1.0 OR Elastic License 2.0",
-  "scripts": {
-    "kbn": "node ../../../../scripts/kbn.js",
-    "build": "rm -rf './target' && ../../../../node_modules/.bin/tsc"
-  }
-}

test/plugin_functional/plugins/doc_views_plugin/public/index.ts

@@ -1,11 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0 and the Server Side Public License, v 1; you may not use this file except
- * in compliance with, at your election, the Elastic License 2.0 or the Server
- * Side Public License, v 1.
- */
-
-import { DocViewsPlugin } from './plugin';
-
-export const plugin = () => new DocViewsPlugin();

test/plugin_functional/plugins/doc_views_plugin/public/plugin.tsx

@@ -1,49 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0 and the Server Side Public License, v 1; you may not use this file except
- * in compliance with, at your election, the Elastic License 2.0 or the Server
- * Side Public License, v 1.
- */
-
-import angular from 'angular';
-import React from 'react';
-import { Plugin, CoreSetup } from 'kibana/public';
-import { DiscoverSetup } from '../../../../../src/plugins/discover/public';
-
-angular.module('myDocView', []).directive('myHit', () => ({
-  restrict: 'E',
-  scope: {
-    hit: '=hit',
-  },
-  template: '<h1 data-test-subj="angular-docview">{{hit._index}}</h1>',
-}));
-
-function MyHit(props: { index: string }) {
-  return <h1 data-test-subj="react-docview">{props.index}</h1>;
-}
-
-export class DocViewsPlugin implements Plugin<void, void> {
-  public setup(core: CoreSetup, { discover }: { discover: DiscoverSetup }) {
-    discover.docViews.addDocView({
-      directive: {
-        controller: function MyController($injector: any) {
-          $injector.loadNewModules(['myDocView']);
-        },
-        template: `<my-hit hit="hit"></my-hit>`,
-      },
-      order: 1,
-      title: 'Angular doc view',
-    });
-
-    discover.docViews.addDocView({
-      component: (props) => {
-        return <MyHit index={props.hit._index as string} />;
-      },
-      order: 2,
-      title: 'React doc view',
-    });
-  }
-
-  public start() {}
-}

test/plugin_functional/plugins/doc_views_plugin/tsconfig.json

@@ -1,17 +0,0 @@
-{
-  "extends": "../../../../tsconfig.base.json",
-  "compilerOptions": {
-    "outDir": "./target/types"
-  },
-  "include": [
-    "index.ts",
-    "public/**/*.ts",
-    "public/**/*.tsx",
-    "../../../../typings/**/*"
-  ],
-  "exclude": [],
-  "references": [
-    { "path": "../../../../src/core/tsconfig.json" },
-    { "path": "../../../../src/plugins/discover/tsconfig.json" },
-  ]
-}