chore(examples): add upgrade/static example
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Peter Bacon Darwin
Victor Berchet
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53c25210a6
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {browser, by, element} from 'protractor';
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import {verifyNoBrowserErrors} from '../../../../_common/e2e_util';
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function loadPage(url: string) {
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browser.ng12Hybrid = true;
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browser.rootEl = 'example-app';
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browser.get(url);
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}
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describe('upgrade(static)', () => {
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beforeEach(() => { loadPage('/upgrade/static/ts/'); });
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afterEach(verifyNoBrowserErrors);
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it('should render the `ng2-heroes` component', () => {
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expect(element(by.css('h1')).getText()).toEqual('Heroes');
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expect(element.all(by.css('p')).get(0).getText()).toEqual('There are 3 heroes.');
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});
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it('should render 3 ng1-hero components', () => {
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const heroComponents = element.all(by.css('ng1-hero'));
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expect(heroComponents.count()).toEqual(3);
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});
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it('should add a new hero when the "Add Hero" button is pressed', () => {
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const addHeroButton = element.all(by.css('button')).last();
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expect(addHeroButton.getText()).toEqual('Add Hero');
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addHeroButton.click();
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const heroComponents = element.all(by.css('ng1-hero'));
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expect(heroComponents.last().element(by.css('h2')).getText()).toEqual('Kamala Khan');
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});
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it('should remove a hero when the "Remove" button is pressed', () => {
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let firstHero = element.all(by.css('ng1-hero')).get(0);
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expect(firstHero.element(by.css('h2')).getText()).toEqual('Superman');
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const removeHeroButton = firstHero.element(by.css('button'));
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expect(removeHeroButton.getText()).toEqual('Remove');
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removeHeroButton.click();
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const heroComponents = element.all(by.css('ng1-hero'));
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expect(heroComponents.count()).toEqual(2);
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firstHero = element.all(by.css('ng1-hero')).get(0);
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expect(firstHero.element(by.css('h2')).getText()).toEqual('Wonder Woman');
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});
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});
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184
modules/@angular/examples/upgrade/static/ts/module.ts
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184
modules/@angular/examples/upgrade/static/ts/module.ts
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Component, Directive, DoCheck, ElementRef, EventEmitter, Inject, Injectable, Injector, Input, NgModule, OnChanges, OnDestroy, OnInit, Output, SimpleChanges} from '@angular/core';
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import {BrowserModule} from '@angular/platform-browser';
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import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
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import {UpgradeComponent, UpgradeModule, downgradeComponent, downgradeInjectable} from '@angular/upgrade/static';
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interface Hero {
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name: string;
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description: string;
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}
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// #docregion Angular 2 Stuff
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// #docregion ng2-heroes
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// This Angular 2 component will be "downgraded" to be used in Angular 1
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@Component({
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selector: 'ng2-heroes',
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// This template uses the upgraded `ng1-hero` component
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// Note that because its element is compiled by Angular 2+ we must use camelCased attribute names
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template: `<h1>Heroes</h1>
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<p><ng-content></ng-content></p>
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<div *ngFor="let hero of heroes">
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<ng1-hero [hero]="hero" (onRemove)="removeHero.emit(hero)"><strong>Super Hero</strong></ng1-hero>
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</div>
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<button (click)="addHero.emit()">Add Hero</button>`,
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})
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class Ng2HeroesComponent {
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@Input() heroes: Hero[];
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@Output() addHero = new EventEmitter();
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@Output() removeHero = new EventEmitter();
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}
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// #enddocregion
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// #docregion ng2-heroes-service
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// This Angular 2 service will be "downgraded" to be used in Angular 1
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@Injectable()
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class HeroesService {
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heroes: Hero[] = [
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{name: 'superman', description: 'The man of steel'},
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{name: 'wonder woman', description: 'Princess of the Amazons'},
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{name: 'thor', description: 'The hammer-wielding god'}
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];
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// #docregion use-ng1-upgraded-service
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constructor(@Inject('titleCase') titleCase: (v: string) => string) {
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// Change all the hero names to title case, using the "upgraded" Angular 1 service
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this.heroes.forEach((hero: Hero) => hero.name = titleCase(hero.name));
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}
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// #enddocregion
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addHero() {
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this.heroes =
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this.heroes.concat([{name: 'Kamala Khan', description: 'Epic shape-shifting healer'}]);
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}
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removeHero(hero: Hero) { this.heroes = this.heroes.filter((item: Hero) => item !== hero); }
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}
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// #enddocregion
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// #docregion ng1-hero-wrapper
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// This Angular 2 directive will act as an interface to the "upgraded" Angular 1 component
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@Directive({selector: 'ng1-hero'})
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class Ng1HeroComponentWrapper extends UpgradeComponent implements OnInit, OnChanges, DoCheck,
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OnDestroy {
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// The names of the input and output properties here must match the names of the
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// `<` and `&` bindings in the Angular 1 component that is being wrapped
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@Input() hero: Hero;
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@Output() onRemove: EventEmitter<void>;
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constructor(@Inject(ElementRef) elementRef: ElementRef, @Inject(Injector) injector: Injector) {
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// We must pass the name of the directive as used by Angular 1 to the super
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super('ng1Hero', elementRef, injector);
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}
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// For this class to work when compiled with AoT, we must implement these lifecycle hooks
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// because the AoT compiler will not realise that the super class implements them
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ngOnInit() { super.ngOnInit(); }
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ngOnChanges(changes: SimpleChanges) { super.ngOnChanges(changes); }
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ngDoCheck() { super.ngDoCheck(); }
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ngOnDestroy() { super.ngOnDestroy(); }
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}
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// #enddocregion
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// #docregion ng2-module
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// This NgModule represents the Angular 2 pieces of the application
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@NgModule({
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declarations: [Ng2HeroesComponent, Ng1HeroComponentWrapper],
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providers: [
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HeroesService,
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// #docregion upgrade-ng1-service
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// Register an Angular 2+ provider whose value is the "upgraded" Angular 1 service
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{provide: 'titleCase', useFactory: (i: any) => i.get('titleCase'), deps: ['$injector']}
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// #enddocregion
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],
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// All components that are to be "downgraded" must be declared as `entryComponents`
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entryComponents: [Ng2HeroesComponent],
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// We must import `UpgradeModule` to get access to the Angular 1 core services
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imports: [BrowserModule, UpgradeModule]
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})
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class Ng2AppModule {
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ngDoBootstrap() { /* this is a placeholder to stop the boostrapper from complaining */
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}
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}
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// #enddocregion
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// #enddocregion
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// #docregion Angular 1 Stuff
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// #docregion ng1-module
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// This Angular 1 module represents the Angular 1 pieces of the application
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const ng1AppModule = angular.module('ng1AppModule', []);
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// #enddocregion
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// #docregion ng1-hero
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// This Angular 1 component will be "upgraded" to be used in Angular 2+
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ng1AppModule.component('ng1Hero', {
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bindings: {hero: '<', onRemove: '&'},
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transclude: true,
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template: `<div class="title" ng-transclude></div>
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<h2>{{ $ctrl.hero.name }}</h2>
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<p>{{ $ctrl.hero.description }}</p>
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<button ng-click="$ctrl.onRemove()">Remove</button>`
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});
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// #enddocregion
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// #docregion ng1-title-case-service
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// This Angular 1 service will be "upgraded" to be used in Angular 2+
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ng1AppModule.factory(
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'titleCase',
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() => (value: string) => value.replace(/((^|\s)[a-z])/g, (_, c) => c.toUpperCase()));
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// #enddocregion
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// #docregion downgrade-ng2-heroes-service
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// Register an Angular 1 service, whose value is the "downgraded" Angular 2+ injectable.
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ng1AppModule.factory('heroesService', downgradeInjectable(HeroesService));
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// #enddocregion
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// #docregion ng2-heroes-wrapper
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// This is directive will act as the interface to the "downgraded" Angular 2+ component
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ng1AppModule.directive(
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'ng2Heroes',
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downgradeComponent(
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// The inputs and outputs here must match the relevant names of the properties on the
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// "downgraded" component
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{component: Ng2HeroesComponent, inputs: ['heroes'], outputs: ['addHero', 'removeHero']}));
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// #enddocregion
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// #docregion example-app
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// This is our top level application component
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ng1AppModule.component('exampleApp', {
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// We inject the "downgraded" HeroesService into this Angular 1 component
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// (We don't need the `HeroesService` type for Angular 1 DI - it just helps with TypeScript
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// compilation)
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controller: [
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'heroesService', function(heroesService: HeroesService) { this.heroesService = heroesService; }
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],
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// This template make use of the downgraded `ng2-heroes` component
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// Note that because its element is compiled by Angular 1 we must use kebab-case attributes for
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// inputs and outputs
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template: `<link rel="stylesheet" href="./styles.css">
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<ng2-heroes [heroes]="$ctrl.heroesService.heroes" (add-hero)="$ctrl.heroesService.addHero()" (remove-hero)="$ctrl.heroesService.removeHero($event)">
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There are {{ $ctrl.heroesService.heroes.length }} heroes.
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</ng2-heroes>`
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});
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// #enddocregion
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// #enddocregion
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// #docregion bootstrap
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// First we bootstrap the Angular 2 HybridModule
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// (We are using the dynamic browser platform as this example has not been compiled AoT)
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platformBrowserDynamic().bootstrapModule(Ng2AppModule).then(ref => {
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// Once Angular 2 bootstrap is complete then we bootstrap the Angular 1 module
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const upgrade = ref.injector.get(UpgradeModule) as UpgradeModule;
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upgrade.bootstrap(document.body, [ng1AppModule.name]);
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});
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// #enddocregion
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17
modules/@angular/examples/upgrade/static/ts/styles.css
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17
modules/@angular/examples/upgrade/static/ts/styles.css
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ng2-heroes {
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border: solid black 2px;
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display: block;
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padding: 5px;
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}
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ng1-hero {
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border: solid green 2px;
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margin-top: 5px;
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padding: 5px;
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display: block;
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}
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.title {
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background-color: blue;
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color: white;
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}
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