refactor(material/sidenav): Remove use of zone onStable to schedule drawer validation (#28682)

Author: mmalerba

src/material/sidenav/drawer.spec.ts

@@ -7,7 +7,7 @@ import {
   discardPeriodicTasks,
   flush,
 } from '@angular/core/testing';
-import {Component, ElementRef, ViewChild} from '@angular/core';
+import {Component, ElementRef, ErrorHandler, ViewChild} from '@angular/core';
 import {By} from '@angular/platform-browser';
 import {BrowserAnimationsModule, NoopAnimationsModule} from '@angular/platform-browser/animations';
 import {MatDrawer, MatSidenavModule, MatDrawerContainer} from './index';
@@ -461,21 +461,29 @@ describe('MatDrawer', () => {
     });
 
     it('should throw when multiple drawers have the same position', fakeAsync(() => {
+      const errorHandler = jasmine.createSpyObj(['handleError']);
+
+      TestBed.configureTestingModule({
+        imports: [DrawerDynamicPosition],
+        providers: [
+          {
+            provide: ErrorHandler,
+            useValue: errorHandler,
+          },
+        ],
+      }).compileComponents();
+
       const fixture = TestBed.createComponent(DrawerDynamicPosition);
       fixture.detectChanges();
       tick();
 
       const testComponent: DrawerDynamicPosition = fixture.debugElement.componentInstance;
       testComponent.drawer1Position = 'end';
 
-      expect(() => {
-        try {
-          fixture.detectChanges();
-          tick(0);
-        } catch {
-          tick(0);
-        }
-      }).toThrow();
+      fixture.detectChanges();
+      tick();
+
+      expect(errorHandler.handleError).toHaveBeenCalled();
     }));
 
     it('should not throw when drawers swap positions', () => {

src/material/sidenav/drawer.ts

@@ -22,7 +22,10 @@ import {DOCUMENT} from '@angular/common';
 import {
   AfterContentChecked,
   AfterContentInit,
+  afterNextRender,
+  AfterRenderPhase,
   AfterViewInit,
+  ANIMATION_MODULE_TYPE,
   ChangeDetectionStrategy,
   ChangeDetectorRef,
   Component,
@@ -32,8 +35,10 @@ import {
   ElementRef,
   EventEmitter,
   forwardRef,
+  inject,
   Inject,
   InjectionToken,
+  Injector,
   Input,
   NgZone,
   OnDestroy,
@@ -42,18 +47,17 @@ import {
   QueryList,
   ViewChild,
   ViewEncapsulation,
-  ANIMATION_MODULE_TYPE,
 } from '@angular/core';
 import {fromEvent, merge, Observable, Subject} from 'rxjs';
 import {
   debounceTime,
+  distinctUntilChanged,
   filter,
   map,
+  mapTo,
   startWith,
   take,
   takeUntil,
-  distinctUntilChanged,
-  mapTo,
 } from 'rxjs/operators';
 import {matDrawerAnimations} from './drawer-animations';
 
@@ -750,6 +754,8 @@ export class MatDrawerContainer implements AfterContentInit, DoCheck, OnDestroy
     return this._userContent || this._content;
   }
 
+  private _injector = inject(Injector);
+
   constructor(
     @Optional() private _dir: Directionality,
     private _element: ElementRef<HTMLElement>,
@@ -933,9 +939,12 @@ export class MatDrawerContainer implements AfterContentInit, DoCheck, OnDestroy
     // NOTE: We need to wait for the microtask queue to be empty before validating,
     // since both drawers may be swapping positions at the same time.
     drawer.onPositionChanged.pipe(takeUntil(this._drawers.changes)).subscribe(() => {
-      this._ngZone.onMicrotaskEmpty.pipe(take(1)).subscribe(() => {
-        this._validateDrawers();
-      });
+      afterNextRender(
+        () => {
+          this._validateDrawers();
+        },
+        {injector: this._injector, phase: AfterRenderPhase.Read},
+      );
     });
   }