Modifed log-in component to use LOGIN_ROUTE when setting the redirect url.

Also added check for mobile layout that forces setting of the redirect url.

src/app/shared/log-in/log-in.component.spec.ts

@@ -16,6 +16,12 @@ import { AppState } from '../../app.reducer';
 import {AppRoutingModule} from '../../app-routing.module';
 import {PageNotFoundComponent} from '../../pagenotfound/pagenotfound.component';
 import {APP_BASE_HREF} from '@angular/common';
+import {HostWindowService} from '../host-window.service';
+import {HostWindowServiceStub} from '../testing/host-window-service-stub';
+import {RouterStub} from '../testing/router-stub';
+import {NavigationEnd, Router} from '@angular/router';
+import {Observable, of as observableOf} from 'rxjs';
+import {RouterEventsStub} from '../testing/router-events-stub';
 
 describe('LogInComponent', () => {
 
@@ -50,7 +56,9 @@ describe('LogInComponent', () => {
       ],
       providers: [
         {provide: AuthService, useClass: AuthServiceStub},
-        {provide: APP_BASE_HREF, useValue: '/'}
+        {provide: APP_BASE_HREF, useValue: '/'},
+        {provide: Router, useClass: RouterStub},
+        {provide: HostWindowService, useValue: new HostWindowServiceStub(900) }
       ],
       schemas: [
         CUSTOM_ELEMENTS_SCHEMA
@@ -118,11 +126,13 @@ describe('LogInComponent', () => {
     expect(authService.setRedirectUrl).toHaveBeenCalled();
   });
 
-  it('should not set the redirect url because one already exists',  () => {
+  it('should not set the redirect url to /login',  () => {
     fixture.detectChanges();
 
+    const router: Router = TestBed.get(Router);
+    router.navigateByUrl('/login')
+
     const authService: AuthService = TestBed.get(AuthService);
-    authService.setRedirectUrl('/submit')
 
     // set FormControl values
     component.form.controls.email.setValue('user');
@@ -135,6 +145,101 @@ describe('LogInComponent', () => {
     expect(authService.setRedirectUrl).not.toHaveBeenCalled();
   });
 
+  it('should not set the redirect url on init',  () => {
+
+    const authService: AuthService = TestBed.get(AuthService);
+    spyOn(authService, 'setRedirectUrl');
+
+    fixture.detectChanges();
+    expect(authService.setRedirectUrl).not.toHaveBeenCalledWith();
+
+  });
+
+});
+
+describe('LogInComponent on small screen', () => {
+
+  let component: LogInComponent;
+  let fixture: ComponentFixture<LogInComponent>;
+  let page: Page;
+  let user: EPerson;
+
+  const navEvents = observableOf(
+    new NavigationEnd(0, 'http://localhost:3000/home', 'http://localhost:3000/home'),
+    new NavigationEnd(1, 'http://localhost:3000/login', 'http://localhost:3000/login')
+  );
+
+  const authState = {
+    authenticated: false,
+    loaded: false,
+    loading: false,
+  };
+
+  beforeEach(() => {
+    user = EPersonMock;
+  });
+
+  beforeEach(async(() => {
+    // refine the test module by declaring the test component
+    TestBed.configureTestingModule({
+      imports: [
+        FormsModule,
+        ReactiveFormsModule,
+        StoreModule.forRoot(authReducer),
+        AppRoutingModule,
+        TranslateModule.forRoot()
+      ],
+      declarations: [
+        LogInComponent,
+        PageNotFoundComponent
+      ],
+      providers: [
+        {provide: AuthService, useClass: AuthServiceStub},
+        {provide: APP_BASE_HREF, useValue: '/'},
+        {provide: Router, useValue: new RouterEventsStub(navEvents)},
+        {provide: HostWindowService, useValue: new HostWindowServiceStub(300) }
+      ],
+      schemas: [
+        CUSTOM_ELEMENTS_SCHEMA
+      ]
+    })
+      .compileComponents();
+
+  }));
+
+  beforeEach(inject([Store], (store: Store<AppState>) => {
+    store
+      .subscribe((state) => {
+        (state as any).core = Object.create({});
+        (state as any).core.auth = authState;
+      });
+
+    // create component and test fixture
+    fixture = TestBed.createComponent(LogInComponent);
+
+    // get test component from the fixture
+    component = fixture.componentInstance;
+
+    // create page
+    page = new Page(component, fixture);
+
+    // verify the fixture is stable (no pending tasks)
+    fixture.whenStable().then(() => {
+      page.addPageElements();
+    });
+
+  }));
+
+  it('should set the redirect url on init',  () => {
+
+    const authService: AuthService = TestBed.get(AuthService);
+    spyOn(authService, 'setRedirectUrl');
+
+    fixture.detectChanges();
+    expect(authService.setRedirectUrl).toHaveBeenCalledWith('http://localhost:3000/home');
+
+  });
+
 });
 
 /**

src/app/shared/log-in/log-in.component.ts

@@ -1,4 +1,4 @@
-import {filter, map, take, takeWhile, tap} from 'rxjs/operators';
+import {filter, map, pairwise, take, takeWhile, tap} from 'rxjs/operators';
 import { Component, OnDestroy, OnInit } from '@angular/core';
 import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 
@@ -19,8 +19,9 @@ import { CoreState } from '../../core/core.reducers';
 
 import {isEmpty, isNotEmpty} from '../empty.util';
 import { fadeOut } from '../animations/fade';
-import { AuthService } from '../../core/auth/auth.service';
-import {Router} from '@angular/router';
+import {AuthService, LOGIN_ROUTE} from '../../core/auth/auth.service';
+import {NavigationEnd, Router, RoutesRecognized} from '@angular/router';
+import {HostWindowService} from '../host-window.service';
 
 /**
  * /users/sign-in
@@ -82,17 +83,21 @@ export class LogInComponent implements OnDestroy, OnInit {
    */
   private alive = true;
 
+  private redirectUrl = LOGIN_ROUTE;
+
   /**
    * @constructor
    * @param {AuthService} authService
    * @param {FormBuilder} formBuilder
    * @param {Router} router
+   * @param {HostWindowService} windowService
    * @param {Store<State>} store
    */
   constructor(
     private authService: AuthService,
     private formBuilder: FormBuilder,
     private router: Router,
+    private windowService: HostWindowService,
     private store: Store<CoreState>
   ) {
   }
@@ -101,10 +106,22 @@ export class LogInComponent implements OnDestroy, OnInit {
    * Lifecycle hook that is called after data-bound properties of a directive are initialized.
    * @method ngOnInit
    */
-  public ngOnInit() {
-    // set isAuthenticated
+  public ngOnInit() {    // set isAuthenticated
     this.isAuthenticated = this.store.pipe(select(isAuthenticated));
 
+    // for mobile login, set the redirect url to the previous route
+    this.windowService.isXs().pipe(take(1))
+      .subscribe((isMobile) => {
+        if (isMobile) {
+          this.router.events.pipe(
+            filter((e: any) => e instanceof NavigationEnd),
+            pairwise()
+          ).subscribe((e: any) => {
+            this.setRedirectUrl(e[0].urlAfterRedirects);
+          });
+        }
+      });
+
     // set formGroup
     this.form = this.formBuilder.group({
       email: ['', Validators.required],
@@ -185,17 +202,21 @@ export class LogInComponent implements OnDestroy, OnInit {
     email.trim();
     password.trim();
 
-    this.authService.getRedirectUrl().pipe(
-      take(1)).
-      subscribe((r) => {
-        // Set the redirect url if none exists.
-        if (isEmpty(r)) {
-          this.authService.setRedirectUrl(this.router.url)
-        }
+    this.setRedirectUrl(this.router.url);
     // dispatch AuthenticationAction
     this.store.dispatch(new AuthenticateAction(email, password));
     // clear form
     this.form.reset();
-      });
+
+  }
+
+  /**
+   * Sets the redirect url if not LOGIN_ROUTE
+   * @param url
+   */
+  private setRedirectUrl(url: string) {
+    if (url !== this.redirectUrl) {
+      this.authService.setRedirectUrl(url)
+    }
   }
 }

src/app/shared/testing/router-events-stub.ts

@@ -0,0 +1,24 @@
+import {Observable, of as observableOf} from 'rxjs';
+export class RouterEventsStub {
+  url: string;
+  routeReuseStrategy = {shouldReuseRoute: {}};
+  //noinspection TypeScriptUnresolvedFunction
+  navigate = jasmine.createSpy('navigate');
+  parseUrl = jasmine.createSpy('parseUrl');
+  events = new Observable((observer) => {
+    this.eventArr.forEach((e) => {
+      observer.next(e);
+    });
+    observer.complete();
+  });
+  eventArr: any;
+
+  // Stub constructor takes array of event objects.
+  constructor( events: any = observableOf({})) {
+    this.eventArr = events;
+  }
+
+  navigateByUrl(url): void {
+    this.url = url;
+  }
+}