fix(angular): add support for Angular 14 (#25403)

Resolves #25353

angular/src/di/r3_injector.ts

@@ -0,0 +1,34 @@
+/**
+ * This class is taken directly from Angular's codebase. It can be removed once
+ * we remove support for < Angular 14. The replacement class will come from @angular/core.
+ *
+ * TODO: FW-1641: Remove this class once Angular 13 support is dropped.
+ *
+ */
+import { Injector, ProviderToken, InjectFlags } from '@angular/core';
+/**
+ * An `Injector` that's part of the environment injector hierarchy, which exists outside of the
+ * component tree.
+ *
+ * @developerPreview
+ */
+export abstract class EnvironmentInjector implements Injector {
+  /**
+   * Retrieves an instance from the injector based on the provided token.
+   * @returns The instance from the injector if defined, otherwise the `notFoundValue`.
+   * @throws When the `notFoundValue` is `undefined` or `Injector.THROW_IF_NOT_FOUND`.
+   */
+  abstract get<T>(token: ProviderToken<T>, notFoundValue?: T, flags?: InjectFlags): T;
+  /**
+   * @deprecated from v4.0.0 use ProviderToken<T>
+   * @suppress {duplicate}
+   */
+  abstract get(token: any, notFoundValue?: any): any;
+
+  abstract destroy(): void;
+
+  /**
+   * @internal
+   */
+  abstract onDestroy(callback: () => void): void;
+}

angular/src/directives/navigation/ion-router-outlet.ts

@@ -20,9 +20,11 @@ import { componentOnReady } from '@ionic/core';
 import { Observable, BehaviorSubject } from 'rxjs';
 import { distinctUntilChanged, filter, switchMap } from 'rxjs/operators';
 
+import { EnvironmentInjector } from '../../di/r3_injector';
 import { AnimationBuilder } from '../../ionic-core';
 import { Config } from '../../providers/config';
 import { NavController } from '../../providers/nav-controller';
+import { isComponentFactoryResolver } from '../../util/util';
 
 import { StackController } from './stack-controller';
 import { RouteView, getUrl } from './stack-utils';
@@ -82,11 +84,11 @@ export class IonRouterOutlet implements OnDestroy, OnInit {
   constructor(
     private parentContexts: ChildrenOutletContexts,
     private location: ViewContainerRef,
-    private resolver: ComponentFactoryResolver,
     @Attribute('name') name: string,
     @Optional() @Attribute('tabs') tabs: string,
     private config: Config,
     private navCtrl: NavController,
+    @Optional() private environmentInjector: EnvironmentInjector,
     commonLocation: Location,
     elementRef: ElementRef,
     router: Router,
@@ -206,7 +208,10 @@ export class IonRouterOutlet implements OnDestroy, OnInit {
     }
   }
 
-  activateWith(activatedRoute: ActivatedRoute, resolver: ComponentFactoryResolver | null): void {
+  activateWith(
+    activatedRoute: ActivatedRoute,
+    resolverOrInjector?: ComponentFactoryResolver | EnvironmentInjector | null
+  ): void {
     if (this.isActivated) {
       throw new Error('Cannot activate an already activated outlet');
     }
@@ -229,9 +234,6 @@ export class IonRouterOutlet implements OnDestroy, OnInit {
       const snapshot = (activatedRoute as any)._futureSnapshot;
       // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
       const component = snapshot.routeConfig!.component as any;
-      resolver = resolver || this.resolver;
-
-      const factory = resolver.resolveComponentFactory(component);
       const childContexts = this.parentContexts.getOrCreateContext(this.name).children;
 
       // We create an activated route proxy object that will maintain future updates for this component
@@ -240,8 +242,35 @@ export class IonRouterOutlet implements OnDestroy, OnInit {
       const activatedRouteProxy = this.createActivatedRouteProxy(component$, activatedRoute);
 
       const injector = new OutletInjector(activatedRouteProxy, childContexts, this.location.injector);
-      cmpRef = this.activated = this.location.createComponent(factory, this.location.length, injector);
 
+      if (resolverOrInjector && isComponentFactoryResolver(resolverOrInjector)) {
+        // Backwards compatibility for Angular 13 and lower
+        const factory = resolverOrInjector.resolveComponentFactory(component);
+        cmpRef = this.activated = this.location.createComponent(factory, this.location.length, injector);
+      } else {
+        /**
+         * Angular 14 and higher.
+         *
+         * TODO: FW-1641: Migrate once Angular 13 support is dropped.
+         *
+         * When we drop < Angular 14, we can replace the following code with:
+         * ```ts
+          const environmentInjector = resolverOrInjector ?? this.environmentInjector;
+            cmpRef = this.activated = location.createComponent(component, {
+              index: location.length,
+              injector,
+              environmentInjector,
+            });
+         * ```
+         * where `this.environmentInjector` is a provider of `EnvironmentInjector` from @angular/core.
+         */
+        const environmentInjector = resolverOrInjector ?? this.environmentInjector;
+        cmpRef = this.activated = this.location.createComponent(component, {
+          index: this.location.length,
+          injector,
+          environmentInjector,
+        } as any);
+      }
       // Once the component is created we can push it to our local subject supplied to the proxy
       component$.next(cmpRef.instance);
 

angular/src/providers/angular-delegate.ts

@@ -6,6 +6,7 @@ import {
   Injectable,
   InjectionToken,
   Injector,
+  ComponentRef,
 } from '@angular/core';
 import {
   FrameworkDelegate,
@@ -16,18 +17,20 @@ import {
   LIFECYCLE_WILL_UNLOAD,
 } from '@ionic/core';
 
+import { EnvironmentInjector } from '../di/r3_injector';
 import { NavParams } from '../directives/navigation/nav-params';
+import { isComponentFactoryResolver } from '../util/util';
 
 @Injectable()
 export class AngularDelegate {
   constructor(private zone: NgZone, private appRef: ApplicationRef) {}
 
   create(
-    resolver: ComponentFactoryResolver,
+    resolverOrInjector: ComponentFactoryResolver,
     injector: Injector,
     location?: ViewContainerRef
   ): AngularFrameworkDelegate {
-    return new AngularFrameworkDelegate(resolver, injector, location, this.appRef, this.zone);
+    return new AngularFrameworkDelegate(resolverOrInjector, injector, location, this.appRef, this.zone);
   }
 }
 
@@ -36,7 +39,7 @@ export class AngularFrameworkDelegate implements FrameworkDelegate {
   private elEventsMap = new WeakMap<HTMLElement, () => void>();
 
   constructor(
-    private resolver: ComponentFactoryResolver,
+    private resolverOrInjector: ComponentFactoryResolver | EnvironmentInjector,
     private injector: Injector,
     private location: ViewContainerRef | undefined,
     private appRef: ApplicationRef,
@@ -48,7 +51,7 @@ export class AngularFrameworkDelegate implements FrameworkDelegate {
       return new Promise((resolve) => {
         const el = attachView(
           this.zone,
-          this.resolver,
+          this.resolverOrInjector,
           this.injector,
           this.location,
           this.appRef,
@@ -85,7 +88,7 @@ export class AngularFrameworkDelegate implements FrameworkDelegate {
 
 export const attachView = (
   zone: NgZone,
-  resolver: ComponentFactoryResolver,
+  resolverOrInjector: ComponentFactoryResolver | EnvironmentInjector,
   injector: Injector,
   location: ViewContainerRef | undefined,
   appRef: ApplicationRef,
@@ -96,14 +99,29 @@ export const attachView = (
   params: any,
   cssClasses: string[] | undefined
 ): any => {
-  const factory = resolver.resolveComponentFactory(component);
+  let componentRef: ComponentRef<any>;
   const childInjector = Injector.create({
     providers: getProviders(params),
     parent: injector,
   });
-  const componentRef = location
-    ? location.createComponent(factory, location.length, childInjector)
-    : factory.create(childInjector);
+
+  if (resolverOrInjector && isComponentFactoryResolver(resolverOrInjector)) {
+    // Angular 13 and lower
+    const factory = resolverOrInjector.resolveComponentFactory(component);
+    componentRef = location
+      ? location.createComponent(factory, location.length, childInjector)
+      : factory.create(childInjector);
+  } else if (location) {
+    // Angular 14
+    const environmentInjector = resolverOrInjector;
+    componentRef = location.createComponent(component, {
+      index: location.indexOf,
+      injector: childInjector,
+      environmentInjector,
+    } as any);
+  } else {
+    return null;
+  }
 
   const instance = componentRef.instance;
   const hostElement = componentRef.location.nativeElement;

angular/src/providers/modal-controller.ts

@@ -1,6 +1,7 @@
-import { ComponentFactoryResolver, Injector, Injectable } from '@angular/core';
+import { ComponentFactoryResolver, Injector, Injectable, Optional } from '@angular/core';
 import { ModalOptions, modalController } from '@ionic/core';
 
+import { EnvironmentInjector } from '../di/r3_injector';
 import { OverlayBaseController } from '../util/overlay';
 
 import { AngularDelegate } from './angular-delegate';
@@ -10,15 +11,17 @@ export class ModalController extends OverlayBaseController<ModalOptions, HTMLIon
   constructor(
     private angularDelegate: AngularDelegate,
     private resolver: ComponentFactoryResolver,
-    private injector: Injector
+    private injector: Injector,
+    // TODO: FW-1641: Migrate to Angular's version once Angular 13 is dropped
+    @Optional() private environmentInjector: EnvironmentInjector
   ) {
     super(modalController);
   }
 
   create(opts: ModalOptions): Promise<HTMLIonModalElement> {
     return super.create({
       ...opts,
-      delegate: this.angularDelegate.create(this.resolver, this.injector),
+      delegate: this.angularDelegate.create(this.resolver ?? this.environmentInjector, this.injector),
     });
   }
 }

angular/src/providers/popover-controller.ts

@@ -1,6 +1,7 @@
-import { ComponentFactoryResolver, Injector, Injectable } from '@angular/core';
+import { ComponentFactoryResolver, Injector, Injectable, Optional } from '@angular/core';
 import { PopoverOptions, popoverController } from '@ionic/core';
 
+import { EnvironmentInjector } from '../di/r3_injector';
 import { OverlayBaseController } from '../util/overlay';
 
 import { AngularDelegate } from './angular-delegate';
@@ -10,15 +11,17 @@ export class PopoverController extends OverlayBaseController<PopoverOptions, HTM
   constructor(
     private angularDelegate: AngularDelegate,
     private resolver: ComponentFactoryResolver,
-    private injector: Injector
+    private injector: Injector,
+    // TODO: FW-1641: Migrate to Angular's version once Angular 13 is dropped
+    @Optional() private environmentInjector: EnvironmentInjector
   ) {
     super(popoverController);
   }
 
   create(opts: PopoverOptions): Promise<HTMLIonPopoverElement> {
     return super.create({
       ...opts,
-      delegate: this.angularDelegate.create(this.resolver, this.injector),
+      delegate: this.angularDelegate.create(this.resolver ?? this.environmentInjector, this.injector),
     });
   }
 }

angular/src/util/util.ts

@@ -1,3 +1,5 @@
+import { ComponentFactoryResolver } from '@angular/core';
+
 declare const __zone_symbol__requestAnimationFrame: any;
 declare const requestAnimationFrame: any;
 
@@ -10,3 +12,7 @@ export const raf = (h: any): any => {
   }
   return setTimeout(h);
 };
+
+export const isComponentFactoryResolver = (item: any): item is ComponentFactoryResolver => {
+  return !!item.resolveComponentFactory;
+};