AAE-40604 Fix for Dropdown required validation message is not present (#11600)

lib/process-services-cloud/src/lib/form/components/widgets/dropdown/dropdown-cloud.widget.html

@@ -4,11 +4,13 @@
     [class.adf-readonly]="field.readOnly"
     [class.adf-left-label-input-container]="field.leftLabels"
 >
-    <div *ngIf="field.leftLabels">
+    @if(field.leftLabels) {
+        <div>
             <label class="adf-label adf-left-label" [attr.for]="field.id">
                 {{ field.name | translate }}<span class="adf-asterisk" [style.visibility]="isRequired() ? 'visible' : 'hidden'">*</span>
             </label>
         </div>
+    }
     <div>
         <mat-form-field class="adf-form-field-input">
             @if ( (field.name || this.field?.required) && !field.leftLabels) {
@@ -27,7 +29,9 @@
                 #select
                 (keydown.escape)="select.close()"
             >
-                <adf-select-filter-input *ngIf="showInputFilter" (change)="filter$.next($event)" />
+                @if(showInputFilter) {
+                    <adf-select-filter-input (change)="filter$.next($event)" />
+                }
 
                 @for(opt of (list$ | async); track opt.id) {
                     <mat-option [value]="opt" [id]="opt.id">
@@ -48,19 +52,23 @@
 
         <div
             class="adf-error-messages-container"
-            [ngClass]="!previewState && !field.readOnly ? 'adf-error-messages-container-visible' : 'adf-error-messages-container-hidden'"
+            [ngClass]="!field.readOnly ? 'adf-error-messages-container-visible' : 'adf-error-messages-container-hidden'"
         >
-            <error-widget class="adf-dropdown-required-message" *ngIf="showRequiredMessage" required="{{ 'FORM.FIELD.REQUIRED' | translate }}" />
+            @if(showRequiredMessage) {
+                <error-widget class="adf-dropdown-required-message" required="{{ 'FORM.FIELD.REQUIRED' | translate }}" />
+            }
+            @if(!previewState && isRestApiFailed) {
                 <error-widget
                     class="adf-dropdown-failed-message"
-                *ngIf="isRestApiFailed"
                     required="{{ 'FORM.FIELD.REST_API_FAILED' | translate: { hostname: restApiHostName } }}"
                 />
+            }
+            @if(!previewState && variableOptionsFailed) {
                 <error-widget
                     class="adf-dropdown-failed-message"
-                *ngIf="variableOptionsFailed"
                     required="{{ 'FORM.FIELD.VARIABLE_DROPDOWN_OPTIONS_FAILED' | translate }}"
                 />
+            }
         </div>
     </div>
 </div>

lib/process-services-cloud/src/lib/form/components/widgets/dropdown/dropdown-cloud.widget.spec.ts

@@ -253,6 +253,24 @@ describe('DropdownCloudWidgetComponent', () => {
                 expect(widget.isRestApiFailed).toBe(true);
                 expect(widget.field.options.length).toEqual(0);
                 expect(errorMessageElement.nativeElement.textContent.trim()).toBe(errorIcon + 'FORM.FIELD.REST_API_FAILED');
+
+                const errorsMessagesElement = fixture.debugElement.query(By.css('.adf-error-messages-container'));
+                expect(errorsMessagesElement.nativeElement.classList.contains('adf-error-messages-container-visible')).toBe(true);
+            });
+
+            it('should NOT show required message when REST API failed', () => {
+                widget.field.readOnly = false;
+                widget.field.required = true;
+
+                widget.ngOnInit();
+                widget.dropdownControl.markAsTouched();
+                fixture.detectChanges();
+
+                expect(widget.isRestApiFailed).toBe(true);
+                const requiredErrorElement = fixture.debugElement.query(By.css('.adf-dropdown-required-message .adf-error-text'));
+                expect(requiredErrorElement).toBeFalsy();
+                const restApiFailedElement = getErrorMessageElement();
+                expect(restApiFailedElement).toBeTruthy();
             });
 
             it('should NOT show error message when widget is readonly', async () => {
@@ -268,6 +286,21 @@ describe('DropdownCloudWidgetComponent', () => {
                 const errorsMessagesElement = fixture.debugElement.query(By.css('.adf-error-messages-container'));
                 expect(errorsMessagesElement.nativeElement.classList.contains('adf-error-messages-container-hidden')).toBe(true);
             });
+
+            it('should NOT show REST API failed error message when form is in preview state', () => {
+                widget.field.readOnly = false;
+                spyOn(formCloudService, 'getPreviewState').and.returnValue(true);
+
+                widget.ngOnInit();
+                fixture.detectChanges();
+
+                expect(getRestWidgetDataSpy).toHaveBeenCalled();
+                expect(widget.isRestApiFailed).toBe(true);
+                expect(widget.field.options.length).toEqual(0);
+
+                const failedErrorMsgElement = getErrorMessageElement();
+                expect(failedErrorMsgElement).toBeNull();
+            });
         });
 
         it('should preselect dropdown widget value when Json (rest call) passed', async () => {
@@ -405,6 +438,9 @@ describe('DropdownCloudWidgetComponent', () => {
 
             expect(element.querySelector('.adf-invalid')).toBeTruthy();
 
+            const errorsMessagesElement = fixture.debugElement.query(By.css('.adf-error-messages-container'));
+            expect(errorsMessagesElement.nativeElement.classList.contains('adf-error-messages-container-visible')).toBe(true);
+
             const requiredErrorElement = fixture.debugElement.query(By.css('.adf-dropdown-required-message .adf-error-text'));
             expect(requiredErrorElement.nativeElement.innerText).toEqual('FORM.FIELD.REQUIRED');
         });
@@ -1158,6 +1194,24 @@ describe('DropdownCloudWidgetComponent', () => {
             checkDropdownVariableOptionsFailed();
         });
 
+        it('should NOT show required message when variable options failed', () => {
+            widget.field = getVariableDropdownWidget(
+                'variables.json-variable',
+                'response.wrongPath.players',
+                'playerId',
+                'playerFullName',
+                mockProcessVariablesWithJson
+            );
+            widget.field.required = true;
+            fixture.detectChanges();
+
+            expect(widget.variableOptionsFailed).toBe(true);
+            const requiredErrorElement = fixture.debugElement.query(By.css('.adf-dropdown-required-message .adf-error-text'));
+            expect(requiredErrorElement).toBeFalsy();
+            const variableFailedElement = fixture.debugElement.query(By.css('.adf-dropdown-failed-message'));
+            expect(variableFailedElement).toBeTruthy();
+        });
+
         it('should return empty array and display error when id is incorrect', () => {
             widget.field = getVariableDropdownWidget(
                 'variables.json-variable',
@@ -1204,7 +1258,7 @@ describe('DropdownCloudWidgetComponent', () => {
             checkDropdownVariableOptionsFailed();
         });
 
-        it('should NOT display errors if form is in the preview state', () => {
+        it('should NOT display variable options failed error when form is in the preview state', () => {
             widget.field = getVariableDropdownWidget(
                 'variables.json-variable',
                 'response.wrongPath.players',
@@ -1215,8 +1269,8 @@ describe('DropdownCloudWidgetComponent', () => {
             spyOn(formCloudService, 'getPreviewState').and.returnValue(true);
             fixture.detectChanges();
 
-            const errorsMessagesElement = fixture.debugElement.query(By.css('.adf-error-messages-container'));
+            const failedErrorMsgElement = fixture.debugElement.query(By.css('.adf-dropdown-failed-message'));
-            expect(errorsMessagesElement.nativeElement.classList.contains('adf-error-messages-container-hidden')).toBe(true);
+            expect(failedErrorMsgElement).toBeNull();
         });
 
         it('should NOT display errors if field is readonly', () => {

lib/process-services-cloud/src/lib/form/components/widgets/dropdown/dropdown-cloud.widget.ts

@@ -29,7 +29,7 @@ import {
     SelectFilterInputComponent,
     WidgetComponent
 } from '@alfresco/adf-core';
-import { AsyncPipe, NgClass, NgIf } from '@angular/common';
+import { AsyncPipe, NgClass } from '@angular/common';
 import { Component, DestroyRef, inject, OnInit, ViewEncapsulation } from '@angular/core';
 import { FormControl, ReactiveFormsModule, Validators } from '@angular/forms';
 import { MatFormFieldModule } from '@angular/material/form-field';
@@ -61,7 +61,6 @@ export const DROPDOWN_CLOUD_WIDGET_SET_VALUE_DEBOUNCE = 100;
     },
     encapsulation: ViewEncapsulation.None,
     imports: [
-        NgIf,
         NgClass,
         AsyncPipe,
         ReactiveFormsModule,