[ACS-5523] move viewer and preview to aca-content (#3303)

* move aca-viewer to secondary entry

* move aca-preview to aca-content

projects/aca-content/viewer/src/lib/components/viewer/viewer.component.html

@@ -0,0 +1,38 @@
+<ng-container *ngIf="nodeId">
+  <adf-alfresco-viewer
+    [ngClass]="{
+      'right_side--hide': !showRightSide
+    }"
+    [maxRetries]="'viewer.maxRetries' | adfAppConfig"
+    [nodeId]="nodeId"
+    [versionId]="versionId"
+    [allowNavigate]="navigateMultiple"
+    [allowRightSidebar]="true"
+    [allowPrint]="false"
+    [showRightSidebar]="true"
+    [allowDownload]="false"
+    [allowFullScreen]="false"
+    [overlayMode]="true"
+    (showViewerChange)="onViewerVisibilityChanged()"
+    [canNavigateBefore]="!!previousNodeId"
+    [canNavigateNext]="!!nextNodeId"
+    (navigateBefore)="onNavigateBefore($event)"
+    (navigateNext)="onNavigateNext($event)"
+  >
+    <adf-viewer-sidebar *ngIf="infoDrawerOpened$ | async">
+      <aca-info-drawer [node]="selection.file"></aca-info-drawer>
+    </adf-viewer-sidebar>
+
+    <adf-viewer-open-with *ngIf="openWith.length">
+      <ng-container *ngFor="let action of openWith; trackBy: trackByActionId">
+        <app-toolbar-menu-item [actionRef]="action"></app-toolbar-menu-item>
+      </ng-container>
+    </adf-viewer-open-with>
+
+    <adf-viewer-toolbar-actions>
+      <ng-container *ngFor="let action of toolbarActions; trackBy: trackByActionId">
+        <aca-toolbar-action [actionRef]="action"></aca-toolbar-action>
+      </ng-container>
+    </adf-viewer-toolbar-actions>
+  </adf-alfresco-viewer>
+</ng-container>

projects/aca-content/viewer/src/lib/components/viewer/viewer.component.scss

@@ -0,0 +1,27 @@
+.app-viewer {
+  width: 100%;
+  height: 100%;
+
+  .adf-viewer-toolbar .adf-toolbar-divider {
+    display: none;
+  }
+
+  .adf-viewer-toolbar-actions {
+    display: flex;
+    flex-direction: row;
+    align-items: center;
+
+    .adf-toolbar-divider {
+      display: inline;
+    }
+  }
+
+  // todo: remove this when viewer supports extensions
+  .adf-viewer-toolbar .mat-toolbar > button:last-child {
+    display: none;
+  }
+
+  .adf-alfresco-viewer.right_side--hide .adf-viewer__sidebar__right {
+    width: 0;
+  }
+}

projects/aca-content/viewer/src/lib/components/viewer/viewer.component.ts

@@ -0,0 +1,471 @@
+/*!
+ * Copyright © 2005-2023 Hyland Software, Inc. and its affiliates. All rights reserved.
+ *
+ * Alfresco Example Content Application
+ *
+ * This file is part of the Alfresco Example Content Application.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail. Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * The Alfresco Example Content Application is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Alfresco Example Content Application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * from Hyland Software. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import { AppExtensionService, AppHookService, ContentApiService } from '@alfresco/aca-shared';
+import {
+  AppStore,
+  ClosePreviewAction,
+  getAppSelection,
+  isInfoDrawerOpened,
+  RefreshPreviewAction,
+  ReloadDocumentListAction,
+  SetCurrentNodeVersionAction,
+  SetSelectedNodesAction,
+  ViewerActionTypes,
+  ViewNodeAction
+} from '@alfresco/aca-shared/store';
+import { ContentActionRef, SelectionState } from '@alfresco/adf-extensions';
+import { MinimalNodeEntryEntity, SearchRequest, VersionEntry, VersionsApi } from '@alfresco/js-api';
+import { Component, HostListener, OnDestroy, OnInit, ViewEncapsulation } from '@angular/core';
+import { ActivatedRoute, PRIMARY_OUTLET, Router } from '@angular/router';
+import { AlfrescoApiService, ObjectUtils, UserPreferencesService } from '@alfresco/adf-core';
+import { Store } from '@ngrx/store';
+import { from, Observable, Subject } from 'rxjs';
+import { debounceTime, takeUntil } from 'rxjs/operators';
+import { Actions, ofType } from '@ngrx/effects';
+import { NodesApiService, UploadService } from '@alfresco/adf-content-services';
+
+@Component({
+  selector: 'aca-viewer',
+  templateUrl: './viewer.component.html',
+  styleUrls: ['./viewer.component.scss'],
+  encapsulation: ViewEncapsulation.None,
+  host: { class: 'app-viewer' }
+})
+export class AcaViewerComponent implements OnInit, OnDestroy {
+  private _versionsApi: VersionsApi;
+  get versionsApi(): VersionsApi {
+    this._versionsApi = this._versionsApi ?? new VersionsApi(this.apiService.getInstance());
+    return this._versionsApi;
+  }
+
+  onDestroy$ = new Subject<boolean>();
+
+  fileName: string;
+  folderId: string = null;
+  nodeId: string = null;
+  versionId: string = null;
+  node: MinimalNodeEntryEntity;
+  selection: SelectionState;
+  infoDrawerOpened$: Observable<boolean>;
+
+  showRightSide = false;
+  openWith: ContentActionRef[] = [];
+  toolbarActions: ContentActionRef[] = [];
+
+  navigateSource: string = null;
+  previousNodeId: string;
+  nextNodeId: string;
+  navigateMultiple = true;
+  routesSkipNavigation = ['shared', 'recent-files', 'favorites'];
+  navigationSources = ['favorites', 'libraries', 'personal-files', 'recent-files', 'shared'];
+  recentFileFilters = [
+    'TYPE:"content"',
+    '-PNAME:"0/wiki"',
+    '-TYPE:"app:filelink"',
+    '-TYPE:"fm:post"',
+    '-TYPE:"cm:thumbnail"',
+    '-TYPE:"cm:failedThumbnail"',
+    '-TYPE:"cm:rating"',
+    '-TYPE:"dl:dataList"',
+    '-TYPE:"dl:todoList"',
+    '-TYPE:"dl:issue"',
+    '-TYPE:"dl:contact"',
+    '-TYPE:"dl:eventAgenda"',
+    '-TYPE:"dl:event"',
+    '-TYPE:"dl:task"',
+    '-TYPE:"dl:simpletask"',
+    '-TYPE:"dl:meetingAgenda"',
+    '-TYPE:"dl:location"',
+    '-TYPE:"fm:topic"',
+    '-TYPE:"fm:post"',
+    '-TYPE:"ia:calendarEvent"',
+    '-TYPE:"lnk:link"'
+  ];
+
+  private navigationPath: string;
+  private previewLocation: string;
+  private containersSkipNavigation = ['adf-viewer__sidebar', 'cdk-overlay-container', 'adf-image-viewer'];
+
+  constructor(
+    private router: Router,
+    private route: ActivatedRoute,
+    private store: Store<AppStore>,
+    private extensions: AppExtensionService,
+    private contentApi: ContentApiService,
+    private actions$: Actions,
+    private preferences: UserPreferencesService,
+    private apiService: AlfrescoApiService,
+    private nodesApiService: NodesApiService,
+    private uploadService: UploadService,
+    private appHookService: AppHookService
+  ) {}
+
+  ngOnInit() {
+    this.infoDrawerOpened$ = this.store.select(isInfoDrawerOpened);
+
+    from(this.infoDrawerOpened$)
+      .pipe(takeUntil(this.onDestroy$))
+      .subscribe((val) => {
+        this.showRightSide = val;
+      });
+
+    this.store
+      .select(getAppSelection)
+      .pipe(takeUntil(this.onDestroy$))
+      .subscribe((selection) => {
+        this.selection = selection;
+      });
+
+    this.extensions
+      .getViewerToolbarActions()
+      .pipe(takeUntil(this.onDestroy$))
+      .subscribe((actions) => {
+        this.toolbarActions = actions;
+      });
+
+    this.extensions
+      .getOpenWithActions()
+      .pipe(takeUntil(this.onDestroy$))
+      .subscribe((actions) => {
+        this.openWith = actions;
+      });
+
+    this.route.params.subscribe((params) => {
+      this.folderId = params.folderId;
+      const { nodeId } = params;
+      this.versionId = params.versionId;
+      if (this.versionId) {
+        this.versionsApi.getVersion(nodeId, this.versionId).then((version: VersionEntry) => {
+          if (version) {
+            this.store.dispatch(new SetCurrentNodeVersionAction(version));
+          }
+        });
+      }
+      if (nodeId) {
+        this.displayNode(nodeId);
+      }
+    });
+
+    this.route.queryParams.subscribe((params) => {
+      this.navigationPath = params.path || params.location;
+    });
+
+    if (this.route.snapshot.data && this.route.snapshot.data.navigateSource) {
+      const source = this.route.snapshot.data.navigateSource.toLowerCase();
+      if (this.navigationSources.includes(source)) {
+        this.navigateSource = this.route.snapshot.data.navigateSource;
+      }
+    }
+
+    this.actions$.pipe(ofType<ClosePreviewAction>(ViewerActionTypes.ClosePreview), takeUntil(this.onDestroy$)).subscribe(() => {
+      this.store.dispatch(new SetCurrentNodeVersionAction(null));
+      this.navigateToFileLocation();
+    });
+
+    this.actions$
+      .pipe(ofType<RefreshPreviewAction>(ViewerActionTypes.RefreshPreview), takeUntil(this.onDestroy$))
+      .subscribe((action: RefreshPreviewAction) => {
+        this.displayNode(action?.payload?.entry?.id);
+      });
+
+    this.appHookService.nodesDeleted.pipe(takeUntil(this.onDestroy$)).subscribe(() => this.navigateToFileLocation());
+
+    this.uploadService.fileUploadDeleted.pipe(takeUntil(this.onDestroy$)).subscribe(() => this.navigateToFileLocation());
+
+    this.uploadService.fileUploadComplete.pipe(debounceTime(300), takeUntil(this.onDestroy$)).subscribe((file) => {
+      this.nodesApiService.nodeUpdated.next(file.data.entry);
+      this.displayNode(file.data.entry.id);
+    });
+
+    this.previewLocation = this.router.url.substring(0, this.router.url.indexOf('/', 1)).replace(/\//g, '');
+  }
+
+  onViewerVisibilityChanged() {
+    this.store.dispatch(new ReloadDocumentListAction());
+    this.navigateToFileLocation();
+  }
+
+  ngOnDestroy() {
+    this.store.dispatch(new SetCurrentNodeVersionAction(null));
+    this.onDestroy$.next(true);
+    this.onDestroy$.complete();
+  }
+
+  trackByActionId(_: number, obj: ContentActionRef): string {
+    return obj.id;
+  }
+
+  async displayNode(nodeId: string) {
+    if (nodeId) {
+      try {
+        this.node = await this.contentApi.getNodeInfo(nodeId).toPromise();
+        this.store.dispatch(new SetSelectedNodesAction([{ entry: this.node }]));
+        this.navigateMultiple = this.extensions.canShowViewerNavigation({ entry: this.node });
+        if (!this.navigateMultiple) {
+          this.nodeId = this.node.id;
+          this.fileName = this.node.name + this.node?.properties?.['cm:versionLabel'];
+          return;
+        }
+
+        if (this.node && this.node.isFile) {
+          const nearest = await this.getNearestNodes(this.node.id, this.node.parentId);
+          this.nodeId = this.node.id;
+          this.previousNodeId = nearest.left;
+          this.nextNodeId = nearest.right;
+          this.fileName = this.node.name + this.node?.properties?.['cm:versionLabel'];
+          return;
+        }
+      } catch (error) {
+        const statusCode = JSON.parse(error.message).error.statusCode;
+
+        if (statusCode !== 401) {
+          this.router.navigate([this.previewLocation, { outlets: { viewer: null } }]).then(() => {
+            this.router.navigate([this.previewLocation, nodeId]);
+          });
+        }
+      }
+    }
+  }
+
+  onNavigateBefore(event: MouseEvent | KeyboardEvent): void {
+    if (event.type !== 'click' && this.shouldNavigate(event.target as HTMLElement)) {
+      return;
+    }
+
+    const location = this.getFileLocation();
+    this.store.dispatch(new ViewNodeAction(this.previousNodeId, { location }));
+  }
+
+  onNavigateNext(event: MouseEvent | KeyboardEvent): void {
+    if (event.type !== 'click' && this.shouldNavigate(event.target as HTMLElement)) {
+      return;
+    }
+
+    const location = this.getFileLocation();
+    this.store.dispatch(new ViewNodeAction(this.nextNodeId, { location }));
+  }
+
+  /**
+   * Retrieves nearest node information for the given node and folder.
+   *
+   * @param nodeId Unique identifier of the document node
+   * @param folderId Unique identifier of the containing folder node.
+   */
+  async getNearestNodes(nodeId: string, folderId: string): Promise<{ left: string; right: string }> {
+    const empty = {
+      left: null,
+      right: null
+    };
+
+    if (nodeId && folderId) {
+      try {
+        const ids = await this.getFileIds(this.navigateSource, folderId);
+        const idx = ids.indexOf(nodeId);
+
+        if (idx >= 0) {
+          return {
+            left: ids[idx - 1] || null,
+            right: ids[idx + 1] || null
+          };
+        } else {
+          return empty;
+        }
+      } catch {
+        return empty;
+      }
+    } else {
+      return empty;
+    }
+  }
+
+  /**
+   * Retrieves a list of node identifiers for the folder and data source.
+   *
+   * @param source Data source name. Allowed values are: personal-files, libraries, favorites, shared, recent-files.
+   * @param folderId Containing folder node identifier for 'personal-files' and 'libraries' sources.
+   */
+  async getFileIds(source: string, folderId?: string): Promise<string[]> {
+    if ((source === 'personal-files' || source === 'libraries') && folderId) {
+      const sortKey = this.preferences.get('personal-files.sorting.key') || 'modifiedAt';
+      const sortDirection = this.preferences.get('personal-files.sorting.direction') || 'desc';
+      const nodes = await this.contentApi
+        .getNodeChildren(folderId, {
+          // orderBy: `${sortKey} ${sortDirection}`,
+          fields: ['id', this.getRootField(sortKey)],
+          where: '(isFile=true)'
+        })
+        .toPromise();
+
+      const entries = nodes.list.entries.map((obj) => obj.entry);
+      this.sort(entries, sortKey, sortDirection);
+
+      return entries.map((obj) => obj.id);
+    }
+
+    if (source === 'favorites') {
+      const nodes = await this.contentApi
+        .getFavorites('-me-', {
+          where: '(EXISTS(target/file))',
+          fields: ['target']
+        })
+        .toPromise();
+
+      const sortKey = this.preferences.get('favorites.sorting.key') || 'modifiedAt';
+      const sortDirection = this.preferences.get('favorites.sorting.direction') || 'desc';
+      const files = nodes.list.entries.map((obj) => obj.entry.target.file);
+      this.sort(files, sortKey, sortDirection);
+
+      return files.map((f) => f.id);
+    }
+
+    if (source === 'shared') {
+      const sortingKey = this.preferences.get('shared.sorting.key') || 'modifiedAt';
+      const sortingDirection = this.preferences.get('shared.sorting.direction') || 'desc';
+
+      const nodes = await this.contentApi
+        .findSharedLinks({
+          fields: ['nodeId', this.getRootField(sortingKey)]
+        })
+        .toPromise();
+
+      const entries = nodes.list.entries.map((obj) => obj.entry);
+      this.sort(entries, sortingKey, sortingDirection);
+
+      return entries.map((obj) => obj.nodeId);
+    }
+
+    if (source === 'recent-files') {
+      const person = await this.contentApi.getPerson('-me-').toPromise();
+      const username = person.entry.id;
+      const sortingKey = this.preferences.get('recent-files.sorting.key') || 'modifiedAt';
+      const sortingDirection = this.preferences.get('recent-files.sorting.direction') || 'desc';
+
+      const query: SearchRequest = {
+        query: {
+          query: '*',
+          language: 'afts'
+        },
+        filterQueries: [
+          { query: `cm:modified:[NOW/DAY-30DAYS TO NOW/DAY+1DAY]` },
+          { query: `cm:modifier:${username} OR cm:creator:${username}` },
+          {
+            query: this.recentFileFilters.join(' AND ')
+          }
+        ],
+        fields: ['id', this.getRootField(sortingKey)],
+        include: ['path', 'properties', 'allowableOperations'],
+        sort: [
+          {
+            type: 'FIELD',
+            field: 'cm:modified',
+            ascending: false
+          }
+        ]
+      };
+      const nodes = await this.contentApi.search(query).toPromise();
+
+      const entries = nodes.list.entries.map((obj) => obj.entry);
+      this.sort(entries, sortingKey, sortingDirection);
+
+      return entries.map((obj) => obj.id);
+    }
+
+    return [];
+  }
+
+  /**
+   * Get the root field name from the property path.
+   * Example: 'property1.some.child.property' => 'property1'
+   *
+   * @param path Property path
+   */
+  getRootField(path: string) {
+    if (path) {
+      return path.split('.')[0];
+    }
+    return path;
+  }
+
+  @HostListener('document:keydown', ['$event'])
+  handleKeyboardEvent(event: KeyboardEvent) {
+    const key = event.keyCode;
+    const rightArrow = 39;
+    const leftArrow = 37;
+
+    if (key === rightArrow || key === leftArrow) {
+      event.preventDefault();
+      event.stopImmediatePropagation();
+    }
+  }
+
+  private sort(items: any[], key: string, direction: string) {
+    const options: Intl.CollatorOptions = {};
+
+    if (key.includes('sizeInBytes') || key === 'name') {
+      options.numeric = true;
+    }
+
+    items.sort((a: any, b: any) => {
+      let left = ObjectUtils.getValue(a, key);
+      if (left) {
+        left = left instanceof Date ? left.valueOf().toString() : left.toString();
+      } else {
+        left = '';
+      }
+
+      let right = ObjectUtils.getValue(b, key);
+      if (right) {
+        right = right instanceof Date ? right.valueOf().toString() : right.toString();
+      } else {
+        right = '';
+      }
+
+      return direction === 'asc' ? left.localeCompare(right, undefined, options) : right.localeCompare(left, undefined, options);
+    });
+  }
+
+  private navigateToFileLocation() {
+    const location = this.getFileLocation();
+    this.router.navigateByUrl(location);
+  }
+
+  private getFileLocation(): string {
+    return this.navigationPath || this.router.parseUrl(this.router.url).root.children[PRIMARY_OUTLET].toString();
+  }
+
+  private shouldNavigate(element: HTMLElement): boolean {
+    let currentElement = element.parentElement;
+
+    while (currentElement && !this.isChild(currentElement.classList)) {
+      currentElement = currentElement.parentElement;
+    }
+
+    return !!currentElement;
+  }
+
+  private isChild(list: DOMTokenList): boolean {
+    return Array.from(list).some((className: string) => this.containersSkipNavigation.includes(className));
+  }
+}

projects/aca-content/viewer/src/lib/viewer.module.ts

@@ -0,0 +1,60 @@
+/*!
+ * Copyright © 2005-2023 Hyland Software, Inc. and its affiliates. All rights reserved.
+ *
+ * Alfresco Example Content Application
+ *
+ * This file is part of the Alfresco Example Content Application.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail. Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * The Alfresco Example Content Application is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Alfresco Example Content Application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * from Hyland Software. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import { NgModule } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { CoreModule } from '@alfresco/adf-core';
+import { ContentDirectiveModule, ContentModule } from '@alfresco/adf-content-services';
+import { SharedDirectivesModule, InfoDrawerComponent, SharedToolbarModule } from '@alfresco/aca-shared';
+import { ExtensionsModule } from '@alfresco/adf-extensions';
+import { AcaViewerComponent } from './components/viewer/viewer.component';
+import { RouterModule, Routes } from '@angular/router';
+
+const routes: Routes = [
+  {
+    path: '',
+    data: {
+      title: 'APP.PREVIEW.TITLE',
+      navigateMultiple: true
+    },
+    component: AcaViewerComponent
+  }
+];
+
+@NgModule({
+  imports: [
+    CommonModule,
+    CoreModule.forChild(),
+    RouterModule.forChild(routes),
+    ExtensionsModule.forChild(),
+    ContentModule,
+    ContentDirectiveModule,
+    SharedDirectivesModule,
+    InfoDrawerComponent,
+    SharedToolbarModule
+  ],
+  declarations: [AcaViewerComponent],
+  exports: [AcaViewerComponent]
+})
+export class AcaViewerModule {}

projects/aca-content/viewer/src/public-api.ts

@@ -0,0 +1,30 @@
+/*!
+ * Copyright © 2005-2023 Hyland Software, Inc. and its affiliates. All rights reserved.
+ *
+ * Alfresco Example Content Application
+ *
+ * This file is part of the Alfresco Example Content Application.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail. Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * The Alfresco Example Content Application is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Alfresco Example Content Application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * from Hyland Software. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Public API Surface of aca-viewer
+ */
+
+export * from './lib/components/viewer/viewer.component';
+export * from './lib/viewer.module';

projects/aca-content/viewer/src/test.ts

@@ -0,0 +1,49 @@
+/*!
+ * Copyright © 2005-2023 Hyland Software, Inc. and its affiliates. All rights reserved.
+ *
+ * Alfresco Example Content Application
+ *
+ * This file is part of the Alfresco Example Content Application.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail. Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * The Alfresco Example Content Application is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Alfresco Example Content Application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * from Hyland Software. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// This file is required by karma.conf.js and loads recursively all the .spec and framework files
+
+import 'zone.js';
+import 'zone.js/testing';
+import { getTestBed } from '@angular/core/testing';
+import { BrowserDynamicTestingModule, platformBrowserDynamicTesting } from '@angular/platform-browser-dynamic/testing';
+
+declare const require: {
+  context(
+    path: string,
+    deep?: boolean,
+    filter?: RegExp
+  ): {
+    <T>(id: string): T;
+    keys(): string[];
+  };
+};
+
+// First, initialize the Angular testing environment.
+getTestBed().initTestEnvironment(BrowserDynamicTestingModule, platformBrowserDynamicTesting());
+
+// Then we find all the tests.
+const context = require.context('./', true, /\.spec\.ts$/);
+// And load the modules.
+context.keys().forEach(context);