docs: add angular 17 standalone reactive form sample

examples/angular17-reactive-forms/.editorconfig

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+# Editor configuration, see https://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.ts]
+quote_type = single
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

examples/angular17-reactive-forms/.gitignore

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+.angular
+.vscode

examples/angular17-reactive-forms/README.md

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+# Angular17ReactiveForms
+
+This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 17.0.8.
+
+## Development server
+
+Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The application will automatically reload if you change any of the source files.
+
+## Code scaffolding
+
+Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.
+
+## Build
+
+Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory.
+
+## Running unit tests
+
+Run `ng test` to execute the unit tests via [Karma](https://karma-runner.github.io).
+
+## Running end-to-end tests
+
+Run `ng e2e` to execute the end-to-end tests via a platform of your choice. To use this command, you need to first add a package that implements end-to-end testing capabilities.
+
+## Further help
+
+To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI Overview and Command Reference](https://angular.io/cli) page.

examples/angular17-reactive-forms/angular.json

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+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "newProjectRoot": "projects",
+  "projects": {
+    "angular17-reactive-forms": {
+      "projectType": "application",
+      "schematics": {},
+      "root": "",
+      "sourceRoot": "src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:application",
+          "options": {
+            "outputPath": "dist/angular17-reactive-forms",
+            "index": "src/index.html",
+            "browser": "src/main.ts",
+            "polyfills": [
+              "zone.js"
+            ],
+            "tsConfig": "tsconfig.app.json",
+            "assets": [
+              "src/favicon.ico",
+              "src/assets"
+            ],
+            "styles": [
+              "src/styles.css",
+              "node_modules/@telekom/scale-components/dist/scale-components/scale-components.css"
+            ],
+            "scripts": []
+          },
+          "configurations": {
+            "production": {
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "500kb",
+                  "maximumError": "1mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "2kb",
+                  "maximumError": "4kb"
+                }
+              ],
+              "outputHashing": "all"
+            },
+            "development": {
+              "optimization": false,
+              "extractLicenses": false,
+              "sourceMap": true
+            }
+          },
+          "defaultConfiguration": "production"
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "configurations": {
+            "production": {
+              "buildTarget": "angular17-reactive-forms:build:production"
+            },
+            "development": {
+              "buildTarget": "angular17-reactive-forms:build:development"
+            }
+          },
+          "defaultConfiguration": "development"
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "options": {
+            "buildTarget": "angular17-reactive-forms:build"
+          }
+        },
+        "test": {
+          "builder": "@angular-devkit/build-angular:karma",
+          "options": {
+            "polyfills": [
+              "zone.js",
+              "zone.js/testing"
+            ],
+            "tsConfig": "tsconfig.spec.json",
+            "assets": [
+              "src/favicon.ico",
+              "src/assets"
+            ],
+            "styles": [
+              "src/styles.css"
+            ],
+            "scripts": []
+          }
+        }
+      }
+    }
+  }
+}

examples/angular17-reactive-forms/package.json

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+{
+  "name": "angular17-reactive-forms",
+  "version": "0.0.0",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve",
+    "build": "ng build",
+    "watch": "ng build --watch --configuration development",
+    "test": "ng test"
+  },
+  "private": true,
+  "dependencies": {
+    "@angular/animations": "^17.0.0",
+    "@angular/common": "^17.0.0",
+    "@angular/compiler": "^17.0.0",
+    "@angular/core": "^17.0.0",
+    "@angular/forms": "^17.0.0",
+    "@angular/platform-browser": "^17.0.0",
+    "@angular/platform-browser-dynamic": "^17.0.0",
+    "@angular/router": "^17.0.0",
+    "@telekom/scale-components": "^3.0.0-beta.147",
+    "rxjs": "~7.8.0",
+    "tslib": "^2.3.0",
+    "zone.js": "~0.14.2"
+  },
+  "devDependencies": {
+    "@angular-devkit/build-angular": "^17.0.8",
+    "@angular/cli": "^17.0.8",
+    "@angular/compiler-cli": "^17.0.0",
+    "@types/jasmine": "~5.1.0",
+    "jasmine-core": "~5.1.0",
+    "karma": "~6.4.0",
+    "karma-chrome-launcher": "~3.2.0",
+    "karma-coverage": "~2.2.0",
+    "karma-jasmine": "~5.1.0",
+    "karma-jasmine-html-reporter": "~2.1.0",
+    "typescript": "~5.2.2"
+  }
+}

examples/angular17-reactive-forms/src/app/app.component.html

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+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * * The content below * * * * * * * * * * * -->
+<!-- * * * * * * * * * * is only a placeholder * * * * * * * * * * -->
+<!-- * * * * * * * * * * and can be replaced.  * * * * * * * * * * -->
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+<!-- * * * * * * * * * Delete the template below * * * * * * * * * -->
+<!-- * * * * * * * to get started with your project! * * * * * * * -->
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+
+<style>
+  :host {
+    display: flex;
+    padding: 1rem;
+    width: 100%;
+    justify-content: center;
+  }
+</style>
+
+<main class="main">
+  <form [formGroup]="signupForm" (ngSubmit)="onSubmit()">
+    <p>
+      <scale-text-field label="Username" formControlName="username"></scale-text-field>
+    </p>
+
+    <p>
+      <scale-text-field label="Password" formControlName="password" type="password"></scale-text-field>
+    </p>
+    <p>
+      <scale-checkbox label="I agree with the privacy policy" formControlName="consent"></scale-checkbox>
+    </p>
+    <p>
+      <scale-dropdown-select label="select" formControlName="select">
+        <scale-dropdown-select-item value="foo">Foo</scale-dropdown-select-item>
+        <scale-dropdown-select-item value="bar">Bar</scale-dropdown-select-item>
+      </scale-dropdown-select>
+    </p>
+
+    <p>
+      <scale-date-picker
+      label="Standard"
+      value="2020-12-31"
+      placeholder="Select date"
+      formControlName="date"
+      ngDefaultControl
+      ></scale-date-picker>
+    </p> 
+    <label for="name">Name: </label>
+    <scale-button type="submit">console.log</scale-button>
+    <scale-button type="reset" variant="secondary">Reset</scale-button>
+  </form>
+  <scale-card>
+    <pre>{{ signupForm.value | json }}</pre>
+  </scale-card>
+
+</main>
+
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * * The content above * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * is only a placeholder * * * * * * * * * * * -->
+<!-- * * * * * * * * * * and can be replaced.  * * * * * * * * * * * -->
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * End of Placeholder  * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+
+
+<router-outlet></router-outlet>

examples/angular17-reactive-forms/src/app/app.component.spec.ts

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+import { TestBed } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [AppComponent],
+    }).compileComponents();
+  });
+
+  it('should create the app', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app).toBeTruthy();
+  });
+
+  it(`should have the 'angular17-reactive-forms' title`, () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app.title).toEqual('angular17-reactive-forms');
+  });
+
+  it('should render title', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.nativeElement as HTMLElement;
+    expect(compiled.querySelector('h1')?.textContent).toContain('Hello, angular17-reactive-forms');
+  });
+});

examples/angular17-reactive-forms/src/app/app.component.ts

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+import { Component, CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { RouterOutlet } from '@angular/router';
+import {  ReactiveFormsModule, FormGroup, FormControl, UntypedFormControl } from '@angular/forms';
+import { CheckedValueAccessorDirective } from '../directives/checked-value-accessor';
+import { DateValueAccessorDirective } from '../directives/date-value-accessor';
+import { SelectValueAccessorDirective } from '../directives/select-value-accessor';
+import { NumberValueAccessorDirective } from '../directives/number-value-accessor';
+import { RadioValueAccessorDirective } from '../directives/radio-value-accessor';
+import { TextValueAccessorDirective } from '../directives/text-value-accessor';
+@Component({
+  selector: 'app-root',
+  standalone: true,
+  imports: [CommonModule, RouterOutlet, ReactiveFormsModule, CheckedValueAccessorDirective, DateValueAccessorDirective, SelectValueAccessorDirective,TextValueAccessorDirective, RadioValueAccessorDirective, NumberValueAccessorDirective ],
+  schemas: [CUSTOM_ELEMENTS_SCHEMA], // Telekom Scale
+  templateUrl: './app.component.html',
+  styleUrl: './app.component.css'
+})
+export class AppComponent {
+  title = 'angular17-reactive-forms';
+  signupForm = new FormGroup({
+    username: new UntypedFormControl('admin'),
+    password: new UntypedFormControl({ value: '', disabled: false }),
+    consent: new UntypedFormControl(),
+    select: new UntypedFormControl('foo'),
+    date: new UntypedFormControl(),
+  });
+
+
+  onSubmit() {
+    console.log('submitting ->', this.signupForm.value, this.signupForm);
+  }
+}

examples/angular17-reactive-forms/src/app/app.config.ts

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+import { ApplicationConfig } from '@angular/core';
+import { provideRouter } from '@angular/router';
+
+import { routes } from './app.routes';
+
+export const appConfig: ApplicationConfig = {
+  providers: [provideRouter(routes)]
+};

examples/angular17-reactive-forms/src/app/app.routes.ts

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+import { Routes } from '@angular/router';
+
+export const routes: Routes = [];

examples/angular17-reactive-forms/src/directives/base-value-accessor.ts

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+/**
+ * @license
+ * Scale https://github.com/telekom/scale
+ *
+ * Copyright (c) 2021 Egor Kirpichev and contributors, Deutsche Telekom AG
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { Directive, ElementRef } from '@angular/core';
+import { ControlValueAccessor } from '@angular/forms';
+
+@Directive({
+})
+export class BaseValueAccessorDirective implements ControlValueAccessor {
+  onChange = (_: any) => {};
+
+  onTouched = () => {};
+
+  constructor(protected el: ElementRef) {}
+
+  writeValue(value: any) {
+    this.el.nativeElement.value = value;
+  }
+
+  registerOnTouched(fn: () => void): void {
+    this.onTouched = fn;
+  }
+
+  registerOnChange(fn: (_: any) => {}): void {
+    this.onChange = fn;
+  }
+
+  setDisabledState(isDisabled: boolean): void {
+    this.el.nativeElement.disabled = isDisabled;
+  }
+
+  _handleInput(value: any): void {
+    this.onChange(value);
+  }
+
+  _handleDatePickerSelect(target: any): void {
+    const value = target.querySelector('duet-date-picker').value;
+    this.onChange(value);
+  }
+}