fix(dynamic-form): ajusta evento validate com método clean

O evento `validate` apenas é disparado se o usuário tocar no campo
antes de clicar no `X` do `clean`.

Foi feito um ajuste para que o evento `validate` seja disparado mesmo
se o usuário clicar diretamente no `X` do `clean` sem tocar no campo.

Fixes #1837

projects/ui/src/lib/components/po-field/po-clean/po-clean-base.component.spec.ts

@@ -4,6 +4,10 @@ import { PoCleanBaseComponent } from './po-clean-base.component';
 
 @Directive()
 class PoClean extends PoCleanBaseComponent {
+  focus(): void {}
+
+  blur(): void {}
+
   setInputValue(value: string): void {}
 
   getInputValue(): string {

projects/ui/src/lib/components/po-field/po-clean/po-clean-base.component.ts

@@ -29,6 +29,8 @@ export abstract class PoCleanBaseComponent {
   @Output('p-change-event') changeEvent: EventEmitter<any> = new EventEmitter<any>();
 
   clear() {
+    this.focus();
+    this.blur();
     this.setInputValue(this.defaultValue);
     this.changeEvent.emit(this.defaultValue);
   }
@@ -37,6 +39,10 @@ export abstract class PoCleanBaseComponent {
     return this.defaultValue !== this.getInputValue();
   }
 
+  abstract focus(): void;
+
+  abstract blur(): void;
+
   abstract setInputValue(value: string): void;
 
   abstract getInputValue(): string;

projects/ui/src/lib/components/po-field/po-clean/po-clean.component.spec.ts

@@ -30,6 +30,34 @@ describe('PoCleanComponent', () => {
     expect(fixture.nativeElement.querySelector('.po-icon.po-field-icon.po-icon-close')).toBeDefined();
   });
 
+  it('focus: should call `focus` of input', () => {
+    component.inputRef = {
+      nativeElement: {
+        focus: () => {}
+      }
+    };
+
+    spyOn(component.inputRef.nativeElement, 'focus');
+
+    component.focus();
+
+    expect(component.inputRef.nativeElement.focus).toHaveBeenCalled();
+  });
+
+  it('focus: should call `blur` of input', () => {
+    component.inputRef = {
+      nativeElement: {
+        blur: () => {}
+      }
+    };
+
+    spyOn(component.inputRef.nativeElement, 'blur');
+
+    component.blur();
+
+    expect(component.inputRef.nativeElement.blur).toHaveBeenCalled();
+  });
+
   it('should set value to input', () => {
     const fakeThis = {
       inputRef: {

projects/ui/src/lib/components/po-field/po-clean/po-clean.component.ts

@@ -19,6 +19,14 @@ import { PoCleanBaseComponent } from './po-clean-base.component';
   templateUrl: './po-clean.component.html'
 })
 export class PoCleanComponent extends PoCleanBaseComponent {
+  focus() {
+    this.inputRef.nativeElement.focus();
+  }
+
+  blur() {
+    this.inputRef.nativeElement.blur();
+  }
+
   setInputValue(value?: string) {
     if (this.inputRef && this.inputRef.nativeElement) {
       this.inputRef.nativeElement.value = value;