feat(textarea): ionChange will only emit from user committed changes (#25953)

angular/test/base/e2e/src/textarea.spec.ts

@@ -0,0 +1,18 @@
+describe('Textarea', () => {
+  beforeEach(() => cy.visit('/textarea'));
+
+  it('should become valid', () => {
+    cy.get('#status').should('have.text', 'INVALID');
+
+    cy.get('ion-textarea').type('hello');
+
+    cy.get('#status').should('have.text', 'VALID');
+  });
+
+  it('should update the form control value when typing', () => {
+    cy.get('#value').contains(`"textarea": ""`);
+    cy.get('ion-textarea').type('hello');
+
+    cy.get('#value').contains(`"textarea": "hello"`);
+  });
+});

angular/test/base/src/app/app-routing.module.ts

@@ -25,6 +25,7 @@ const routes: Routes = [
   { path: 'accordions', component: AccordionComponent },
   { path: 'alerts', component: AlertComponent },
   { path: 'inputs', component: InputsComponent },
+  { path: 'textarea', loadChildren: () => import('./textarea/textarea.module').then(m => m.TextareaModule) },
   { path: 'form', component: FormComponent },
   { path: 'modals', component: ModalComponent },
   { path: 'modal-inline', loadChildren: () => import('./modal-inline').then(m => m.ModalInlineModule) },

angular/test/base/src/app/form/form.component.html

@@ -61,7 +61,7 @@
       Form Status: <span id="status">{{ profileForm.status }}</span>
     </p>
     <p>
-      Form Status: <span id="data">{{ profileForm.value | json }}</span>
+      Form value: <span id="data">{{ profileForm.value | json }}</span>
     </p>
     <p>
       Form Submit: <span id="submit">{{submitted}}</span>

angular/test/base/src/app/textarea/textarea-routing.module.ts

@@ -0,0 +1,16 @@
+import { NgModule } from "@angular/core";
+import { RouterModule } from "@angular/router";
+import { TextareaComponent } from "./textarea.component";
+
+@NgModule({
+  imports: [
+    RouterModule.forChild([
+      {
+        path: '',
+        component: TextareaComponent
+      }
+    ])
+  ],
+  exports: [RouterModule]
+})
+export class TextareaRoutingModule { }

angular/test/base/src/app/textarea/textarea.component.html

@@ -0,0 +1,16 @@
+<ion-content>
+  <form [formGroup]="form">
+    <ion-list>
+      <ion-item>
+        <ion-label>Textarea</ion-label>
+        <ion-textarea formControlName="textarea"></ion-textarea>
+      </ion-item>
+    </ion-list>
+  </form>
+  <p>
+    Form status: <span id="status">{{ form.status }}</span>
+  </p>
+  <p>
+    Form value: <span id="value">{{ form.value | json }}</span>
+  </p>
+</ion-content>

angular/test/base/src/app/textarea/textarea.component.ts

@@ -0,0 +1,17 @@
+
+import { Component } from '@angular/core';
+import { FormBuilder, Validators } from '@angular/forms';
+
+@Component({
+  selector: 'app-textarea',
+  templateUrl: 'textarea.component.html',
+})
+export class TextareaComponent {
+
+  form = this.fb.group({
+    textarea: ['', Validators.required]
+  })
+
+  constructor(private fb: FormBuilder) { }
+
+}

angular/test/base/src/app/textarea/textarea.module.ts

@@ -0,0 +1,21 @@
+import { CommonModule } from "@angular/common";
+import { NgModule } from "@angular/core";
+import { FormsModule, ReactiveFormsModule } from "@angular/forms";
+import { IonicModule } from "@ionic/angular";
+
+import { TextareaRoutingModule } from "./textarea-routing.module";
+import { TextareaComponent } from "./textarea.component";
+
+@NgModule({
+  imports: [
+    CommonModule,
+    FormsModule,
+    ReactiveFormsModule,
+    IonicModule,
+    TextareaRoutingModule
+  ],
+  declarations: [
+    TextareaComponent
+  ]
+})
+export class TextareaModule { }