[ADF-5464] [form]Mandatory field validations are not applied once content removed (#7255)

* [ADF-5464] [form]Mandatory field validations are not applied once content is removed from these fields

* * fix test and people widget

* * fix flaky test

lib/core/form/components/widgets/functional-group/functional-group.widget.html

@@ -1,6 +1,9 @@
 <div class="adf-group-widget {{field.className}}"
-     [class.is-dirty]="value"
-     [class.adf-invalid]="!field.isValid" [class.adf-readonly]="field.readOnly" id="functional-group-div">
+     [class.is-dirty]="!!field.value"
+     [class.adf-invalid]="!field.isValid"
+     [class.adf-readonly]="field.readOnly"
+     id="functional-group-div">
+
     <mat-form-field>
         <label class="adf-label" [attr.for]="field.id">{{field.name | translate }}<span *ngIf="isRequired()">*</span></label>
         <input matInput
@@ -8,15 +11,14 @@
                type="text"
                data-automation-id="adf-group-search-input"
                [id]="field.id"
-               [(ngModel)]="value"
-               (keyup)="onKeyUp($event)"
-               [disabled]="field.readOnly"
-               placeholder="{{field.placeholder}}"
+               [formControl]="searchTerm"
+               [placeholder]="field.placeholder"
                [matAutocomplete]="auto">
-        <mat-autocomplete #auto="matAutocomplete" (optionSelected)="onItemSelect($event.option.value)">
-            <mat-option *ngFor="let item of groups; let i = index" id="adf-group-widget-user-{{i}}"
+        <mat-autocomplete #auto="matAutocomplete" (optionSelected)="updateOption($event.option.value)" [displayWith]="getDisplayName">
+            <mat-option *ngFor="let item of groups$ | async; let i = index"
+                        id="adf-group-widget-user-{{i}}"
                        [id]="field.id +'-'+item.id"
-                       (click)="onItemClick(item, $event)"  [value]="item">
+                       [value]="item">
                 <span id="adf-group-label-name">{{item.name}}</span>
             </mat-option>
         </mat-autocomplete>

lib/core/form/components/widgets/functional-group/functional-group.widget.spec.ts

@@ -15,23 +15,25 @@
  * limitations under the License.
  */
 
-import { ElementRef } from '@angular/core';
-import { Observable } from 'rxjs';
+import { of, timer } from 'rxjs';
 import { FormService } from '../../../services/form.service';
 import { FormFieldModel } from '../core/form-field.model';
 import { FormModel } from '../core/form.model';
 import { GroupModel } from '../core/group.model';
 import { FunctionalGroupWidgetComponent } from './functional-group.widget';
-import { AlfrescoApiService } from '../../../../services';
-import { TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { CoreTestingModule, setupTestBed } from '../../../../testing';
 import { TranslateModule } from '@ngx-translate/core';
 
 describe('FunctionalGroupWidgetComponent', () => {
+    let fixture: ComponentFixture<FunctionalGroupWidgetComponent>;
+    let component: FunctionalGroupWidgetComponent;
     let formService: FormService;
-    let elementRef: ElementRef;
-    let widget: FunctionalGroupWidgetComponent;
-    let alfrescoApiService: AlfrescoApiService;
+    let getWorkflowGroupsSpy: jasmine.Spy;
+    const groups: GroupModel[] = [
+        { id: '1', name: 'group 1' },
+        { id: '2', name: 'group 2' }
+    ];
 
     setupTestBed({
         imports: [
@@ -41,170 +43,109 @@ describe('FunctionalGroupWidgetComponent', () => {
     });
 
     beforeEach(() => {
-        alfrescoApiService = TestBed.inject(AlfrescoApiService);
+        formService = TestBed.inject(FormService);
+        getWorkflowGroupsSpy = spyOn(formService, 'getWorkflowGroups').and.returnValue(of([]));
 
-        formService = new FormService(null, alfrescoApiService, null);
-        elementRef = new ElementRef(null);
-        widget = new FunctionalGroupWidgetComponent(formService, elementRef);
-        widget.field = new FormFieldModel(new FormModel());
+        fixture = TestBed.createComponent(FunctionalGroupWidgetComponent);
+        component = fixture.componentInstance;
+        component.field = new FormFieldModel(new FormModel());
+        fixture.detectChanges();
     });
 
-    it('should setup text from underlying field on init', () => {
+    afterEach(() => {
+        getWorkflowGroupsSpy.calls.reset();
+        fixture.destroy();
+    });
+
+    async function typeIntoInput(text: string) {
+        component.searchTerm.setValue(text);
+        fixture.detectChanges();
+
+        await timer(300).toPromise();
+        await fixture.whenStable();
+        fixture.detectChanges();
+
+        const input = fixture.nativeElement.querySelector('input');
+        input.focus();
+        input.dispatchEvent(new Event('focusin'));
+        input.dispatchEvent(new Event('input'));
+
+        await fixture.whenStable();
+        fixture.detectChanges();
+    }
+
+    it('should setup text from underlying field on init', async () => {
         const group: GroupModel = { name: 'group-1'};
-        widget.field.value = group;
+        component.field.value = group;
+        component.ngOnInit();
 
-        spyOn(formService, 'getWorkflowGroups').and.returnValue(
-            new Observable((observer) => {
-                observer.next(null);
-                observer.complete();
-            })
-        );
-
-        widget.ngOnInit();
-        expect(formService.getWorkflowGroups).toHaveBeenCalled();
-        expect(widget.value).toBe(group.name);
+        expect(component.searchTerm.value).toEqual(group.name);
     });
 
     it('should not setup text on init', () => {
-        widget.field.value = null;
-        widget.ngOnInit();
-        expect(widget.value).toBeUndefined();
-    });
-
-    it('should require form field to setup values on init', () => {
-        widget.field = null;
-        widget.ngOnInit();
-
-        expect(widget.value).toBeUndefined();
-        expect(widget.groupId).toBeUndefined();
+        component.field.value = null;
+        component.ngOnInit();
+        expect(component.searchTerm.value).toBeNull();
     });
 
     it('should setup group restriction', () => {
-        widget.ngOnInit();
-        expect(widget.groupId).toBeUndefined();
+        component.ngOnInit();
+        expect(component.groupId).toBeUndefined();
 
-        widget.field.params = { restrictWithGroup: { id: '<id>' } };
-        widget.ngOnInit();
-        expect(widget.groupId).toBe('<id>');
-    });
-
-    it('should prevent default behaviour on option item click', () => {
-        const event = jasmine.createSpyObj('event', ['preventDefault']);
-        widget.onItemClick(null, event);
-        expect(event.preventDefault).toHaveBeenCalled();
-    });
-
-    it('should update values on item click', () => {
-        const item: GroupModel = { name: 'group-1' };
-
-        widget.onItemClick(item, null);
-        expect(widget.field.value).toBe(item);
-        expect(widget.value).toBe(item.name);
+        component.field.params = { restrictWithGroup: { id: '<id>' } };
+        component.ngOnInit();
+        expect(component.groupId).toBe('<id>');
     });
 
     it('should update form on value flush', () => {
-        spyOn(widget.field, 'updateForm').and.callThrough();
-        widget.flushValue();
-        expect(widget.field.updateForm).toHaveBeenCalled();
+        spyOn(component.field, 'updateForm').and.callThrough();
+        component.updateOption();
+        expect(component.field.updateForm).toHaveBeenCalled();
     });
 
     it('should flush selected value', () => {
-        const groups: GroupModel[] = [
-            { id: '1', name: 'group 1' },
-            { id: '2', name: 'group 2' }
-        ];
+        getWorkflowGroupsSpy.and.returnValue(of(groups));
 
-        widget.groups = groups;
-        widget.value = 'group 2';
-        widget.flushValue();
+        component.updateOption(groups[1]);
 
-        expect(widget.value).toBe(groups[1].name);
-        expect(widget.field.value).toBe(groups[1]);
+        expect(component.field.value).toBe(groups[1]);
     });
 
-    it('should be case insensitive when flushing value', () => {
-        const groups: GroupModel[] = [
-            { id: '1', name: 'group 1' },
-            { id: '2', name: 'gRoUp 2' }
-        ];
+    it('should fetch groups and show popup on key up',  async () => {
+        component.groupId = 'parentGroup';
+        getWorkflowGroupsSpy.and.returnValue(of(groups));
 
-        widget.groups = groups;
-        widget.value = 'GROUP 2';
-        widget.flushValue();
+        await typeIntoInput('group');
 
-        expect(widget.value).toBe(groups[1].name);
-        expect(widget.field.value).toBe(groups[1]);
+        const options: HTMLElement[] = Array.from(document.querySelectorAll('[id="adf-group-label-name"]'));
+        expect(options.map(option => option.innerText)).toEqual(['group 1', 'group 2']);
+        expect(getWorkflowGroupsSpy).toHaveBeenCalledWith('group', 'parentGroup');
     });
 
-    it('should fetch groups and show popup on key up', () => {
-        const groups: GroupModel[] = [{}, {}];
-        spyOn(formService, 'getWorkflowGroups').and.returnValue(
-            new Observable((observer) => {
-                observer.next(groups);
-                observer.complete();
-            })
-        );
+    it('should hide popup when fetching empty group list', async () => {
+        component.groupId = 'parentGroup';
+        getWorkflowGroupsSpy.and.returnValues(of(groups), of([]));
 
-        const keyboardEvent = new KeyboardEvent('keypress');
-        widget.value = 'group';
-        widget.onKeyUp(keyboardEvent);
+        await typeIntoInput('group');
 
-        expect(formService.getWorkflowGroups).toHaveBeenCalledWith('group', undefined);
-        expect(widget.groups).toBe(groups);
+        let options: HTMLElement[] = Array.from(document.querySelectorAll('[id="adf-group-label-name"]'));
+        expect(options.map(option => option.innerText)).toEqual(['group 1', 'group 2']);
+
+        await typeIntoInput('unknown-group');
+
+        options = Array.from(document.querySelectorAll('[id="adf-group-label-name"]'));
+        expect(options).toEqual([]);
+        expect(getWorkflowGroupsSpy).toHaveBeenCalledTimes(2);
     });
 
-    it('should fetch groups with a group filter', () => {
-        const groups: GroupModel[] = [{}, {}];
-        spyOn(formService, 'getWorkflowGroups').and.returnValue(
-            new Observable((observer) => {
-                observer.next(groups);
-                observer.complete();
-            })
-        );
-
-        const keyboardEvent = new KeyboardEvent('keypress');
-        widget.groupId = 'parentGroup';
-        widget.value = 'group';
-        widget.onKeyUp(keyboardEvent);
-
-        expect(formService.getWorkflowGroups).toHaveBeenCalledWith('group', 'parentGroup');
-        expect(widget.groups).toBe(groups);
+    it('should not fetch groups when value is missing', async  () => {
+        await typeIntoInput('');
+        expect(getWorkflowGroupsSpy).not.toHaveBeenCalled();
     });
 
-    it('should hide popup when fetching empty group list', () => {
-        spyOn(formService, 'getWorkflowGroups').and.returnValue(
-            new Observable((observer) => {
-                observer.next(null);
-                observer.complete();
-            })
-        );
-
-        const keyboardEvent = new KeyboardEvent('keypress');
-        widget.value = 'group';
-        widget.onKeyUp(keyboardEvent);
-
-        expect(formService.getWorkflowGroups).toHaveBeenCalledWith('group', undefined);
-        expect(widget.groups.length).toBe(0);
-    });
-
-    it('should not fetch groups when value is missing', () => {
-        spyOn(formService, 'getWorkflowGroups').and.stub();
-
-        const keyboardEvent = new KeyboardEvent('keypress');
-        widget.value = null;
-        widget.onKeyUp(keyboardEvent);
-
-        expect(formService.getWorkflowGroups).not.toHaveBeenCalled();
-    });
-
-    it('should not fetch groups when value violates constraints', () => {
-        spyOn(formService, 'getWorkflowGroups').and.stub();
-
-        const keyboardEvent = new KeyboardEvent('keypress');
-        widget.minTermLength = 4;
-        widget.value = '123';
-        widget.onKeyUp(keyboardEvent);
-
-        expect(formService.getWorkflowGroups).not.toHaveBeenCalled();
+    it('should not fetch groups when value violates constraints', async () => {
+        component.minTermLength = 4;
+        await typeIntoInput('123');
+        expect(getWorkflowGroupsSpy).not.toHaveBeenCalled();
     });
 });

lib/core/form/components/widgets/functional-group/functional-group.widget.ts

@@ -17,11 +17,13 @@
 
  /* tslint:disable:component-selector  */
 
-import { ENTER, ESCAPE } from '@angular/cdk/keycodes';
 import { Component, ElementRef, OnInit, ViewEncapsulation } from '@angular/core';
 import { FormService } from '../../../services/form.service';
 import { GroupModel } from './../core/group.model';
 import { WidgetComponent } from './../widget.component';
+import { catchError, debounceTime, filter, switchMap, tap } from 'rxjs/operators';
+import { merge, of } from 'rxjs';
+import { FormControl } from '@angular/forms';
 
 @Component({
     selector: 'functional-group-widget',
@@ -42,11 +44,21 @@ import { WidgetComponent } from './../widget.component';
 })
 export class FunctionalGroupWidgetComponent extends WidgetComponent implements OnInit {
 
-    value: string;
-    oldValue: string;
-    groups: GroupModel[] = [];
     minTermLength: number = 1;
     groupId: string;
+    searchTerm = new FormControl();
+    groups$ = merge(this.searchTerm.valueChanges).pipe(
+        tap((search: GroupModel | string) => {
+            const isValid = typeof search !== 'string';
+            const empty = search === '';
+            this.updateOption( isValid ? search as GroupModel : null );
+            this.validateGroup(isValid, empty);
+        }),
+        filter((group: string | GroupModel) => typeof group === 'string' && group.length >= this.minTermLength),
+        debounceTime(300),
+        switchMap((searchTerm: string) => this.formService.getWorkflowGroups(searchTerm, this.groupId)
+            .pipe(catchError(() => of([]))))
+    );
 
     constructor(public formService: FormService,
                 public elementRef: ElementRef) {
@@ -55,65 +67,52 @@ export class FunctionalGroupWidgetComponent extends WidgetComponent implements O
 
     ngOnInit() {
         if (this.field) {
-            const group = this.field.value;
-            if (group) {
-                this.value = group.name;
+
+            if (this.field.readOnly) {
+                this.searchTerm.disable();
             }
 
             const params = this.field.params;
-            if (params && params['restrictWithGroup']) {
-                const restrictWithGroup = <GroupModel> params['restrictWithGroup'];
+            if (params && params.restrictWithGroup) {
+                const restrictWithGroup = <GroupModel> params.restrictWithGroup;
                 this.groupId = restrictWithGroup.id;
             }
 
-            // Load auto-completion for previously saved value
-            if (this.value) {
-                this.formService
-                    .getWorkflowGroups(this.value, this.groupId)
-                    .subscribe(groups => this.groups = groups || []);
+            if (this.field.value?.name) {
+                this.searchTerm.setValue(this.field.value.name);
             }
         }
     }
 
-    onKeyUp(event: KeyboardEvent) {
-        if (this.value && this.value.length >= this.minTermLength  && this.oldValue !== this.value) {
-            if (event.keyCode !== ESCAPE && event.keyCode !== ENTER) {
-                this.oldValue = this.value;
-                this.formService
-                    .getWorkflowGroups(this.value, this.groupId)
-                    .subscribe(groups => this.groups = groups || []);
-            }
-        }
-    }
-
-    flushValue() {
-        const option = this.groups.find((item) => item.name.toLocaleLowerCase() === this.value.toLocaleLowerCase());
-
+   updateOption(option?: GroupModel) {
         if (option) {
             this.field.value = option;
-            this.value = option.name;
         } else {
             this.field.value = null;
-            this.value = null;
         }
 
         this.field.updateForm();
     }
 
-    onItemClick(item: GroupModel, event: Event) {
-        if (item) {
-            this.field.value = item;
-            this.value = item.name;
-        }
-        if (event) {
-            event.preventDefault();
+    validateGroup(valid: boolean, empty: boolean) {
+        const isEmpty = !this.field.required && (empty || valid);
+        const hasValue = this.field.required && valid;
+
+        if (hasValue || isEmpty) {
+            this.field.validationSummary.message = '';
+            this.field.validate();
+            this.field.form.validateForm();
+        } else {
+            this.field.validationSummary.message = 'FORM.FIELD.VALIDATOR.INVALID_VALUE';
+            this.field.markAsInvalid();
+            this.field.form.markAsInvalid();
         }
     }
 
-    onItemSelect(item: GroupModel) {
-        if (item) {
-            this.field.value = item;
-            this.value = item.name;
-        }
+    getDisplayName(model: GroupModel | string) {
+        if (model) {
+            return typeof model === 'string' ? model : model.name;
+        }
+        return '';
     }
 }

lib/core/form/components/widgets/people/people.widget.html

@@ -11,7 +11,7 @@
                type="text"
                [id]="field.id"
                [formControl]="searchTerm"
-               placeholder="{{field.placeholder}}"
+               [placeholder]="field.placeholder"
                [matAutocomplete]="auto"
                [matTooltip]="field.tooltip"
                matTooltipPosition="above"

lib/core/form/components/widgets/people/people.widget.spec.ts

@@ -180,10 +180,11 @@ describe('PeopleWidgetComponent', () => {
             element = fixture.nativeElement;
         });
 
-        afterAll(() => {
-            if (fixture) {
+        afterEach(() => {
             fixture.destroy();
-            }
+        });
+
+        afterAll(() => {
             TestBed.resetTestingModule();
         });
 
@@ -219,18 +220,19 @@ describe('PeopleWidgetComponent', () => {
             expect(fixture.debugElement.query(By.css('#adf-people-widget-user-1'))).not.toBeNull();
         });
 
-        it('should hide result list if input is empty', () => {
+        it('should hide result list if input is empty',  async () => {
             const peopleHTMLElement: HTMLInputElement = <HTMLInputElement> element.querySelector('input');
             peopleHTMLElement.focus();
             peopleHTMLElement.value = '';
             peopleHTMLElement.dispatchEvent(new Event('keyup'));
+            peopleHTMLElement.dispatchEvent(new Event('focusin'));
             peopleHTMLElement.dispatchEvent(new Event('input'));
+
             fixture.detectChanges();
-            fixture.whenStable().then(() => {
-                fixture.detectChanges();
+            await fixture.whenStable();
+
             expect(fixture.debugElement.query(By.css('#adf-people-widget-user-0'))).toBeNull();
         });
-        });
 
         it('should display two options if we tap one letter', async () => {
             fixture.detectChanges();

lib/core/form/components/widgets/people/people.widget.ts

@@ -55,29 +55,25 @@ export class PeopleWidgetComponent extends WidgetComponent implements OnInit {
     input: ElementRef;
 
     @Output()
-    peopleSelected: EventEmitter<number>;
+    peopleSelected: EventEmitter<number> = new EventEmitter();
 
     groupId: string;
     value: any;
 
     searchTerm = new FormControl();
-    errorMsg = '';
     searchTerms$: Observable<any> = this.searchTerm.valueChanges;
 
     users$ = this.searchTerms$.pipe(
-        tap(() => {
-            this.errorMsg = '';
+        tap((searchInput) => {
+            if (typeof searchInput === 'string') {
+                this.onItemSelect();
+            }
         }),
         distinctUntilChanged(),
         switchMap((searchTerm) => {
             const value = searchTerm.email ? this.getDisplayName(searchTerm) : searchTerm;
             return this.formService.getWorkflowUsers(value, this.groupId)
-                .pipe(
-                    catchError((err) => {
-                        this.errorMsg = err.message;
-                        return of();
-                    })
-                );
+                .pipe(catchError(() => of([])));
         }),
         map((list: UserProcessModel[]) => {
             const value = this.searchTerm.value.email ? this.getDisplayName(this.searchTerm.value) : this.searchTerm.value;
@@ -88,7 +84,6 @@ export class PeopleWidgetComponent extends WidgetComponent implements OnInit {
 
     constructor(public formService: FormService, public peopleProcessService: PeopleProcessService) {
         super(formService);
-        this.peopleSelected = new EventEmitter();
     }
 
     ngOnInit() {
@@ -122,13 +117,13 @@ export class PeopleWidgetComponent extends WidgetComponent implements OnInit {
 
     isValidUser(users: UserProcessModel[], name: string): boolean {
         if (users) {
-            return users.find((user) => {
+            return !!users.find((user) => {
                 const selectedUser = this.getDisplayName(user).toLocaleLowerCase() === name.toLocaleLowerCase();
                 if (selectedUser) {
                     this.peopleSelected.emit(user && user.id || undefined);
                 }
                 return selectedUser;
-            }) ? true : false;
+            });
         }
         return false;
     }
@@ -141,9 +136,11 @@ export class PeopleWidgetComponent extends WidgetComponent implements OnInit {
         return '';
     }
 
-    onItemSelect(item: UserProcessModel) {
+    onItemSelect(item?: UserProcessModel) {
         if (item) {
             this.field.value = item;
+        } else {
+            this.field.value = null;
         }
     }
 }