/** * @license * Copyright Google Inc. All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.io/license */ import {Component, Directive, ElementRef, Injector, Input, NgModule, destroyPlatform} from '@angular/core'; import {async} from '@angular/core/testing'; import {BrowserModule} from '@angular/platform-browser'; import {platformBrowserDynamic} from '@angular/platform-browser-dynamic'; import {UpgradeComponent, UpgradeModule, downgradeComponent} from '@angular/upgrade/static'; import * as angular from '@angular/upgrade/static/src/common/angular1'; import {bootstrap, html, multiTrim, withEachNg1Version} from '../test_helpers'; withEachNg1Version(() => { describe('content projection', () => { beforeEach(() => destroyPlatform()); afterEach(() => destroyPlatform()); it('should instantiate ng2 in ng1 template and project content', async(() => { // the ng2 component that will be used in ng1 (downgraded) @Component({selector: 'ng2', template: `{{ prop }}()`}) class Ng2Component { prop = 'NG2'; ngContent = 'ng2-content'; } // our upgrade module to host the component to downgrade @NgModule({ imports: [BrowserModule, UpgradeModule], declarations: [Ng2Component], entryComponents: [Ng2Component] }) class Ng2Module { ngDoBootstrap() {} } // the ng1 app module that will consume the downgraded component const ng1Module = angular .module('ng1', []) // create an ng1 facade of the ng2 component .directive('ng2', downgradeComponent({component: Ng2Component})) .run(($rootScope: angular.IRootScopeService) => { $rootScope['prop'] = 'NG1'; $rootScope['ngContent'] = 'ng1-content'; }); const element = html('
{{ \'ng1[\' }}~{{ ngContent }}~{{ \']\' }}
'); bootstrap(platformBrowserDynamic(), Ng2Module, element, ng1Module).then((upgrade) => { expect(document.body.textContent).toEqual('ng1[NG2(~ng1-content~)]'); }); })); it('should correctly project structural directives', async(() => { @Component({selector: 'ng2', template: 'ng2-{{ itemId }}()'}) class Ng2Component { // TODO(issue/24571): remove '!'. @Input() itemId !: string; } @NgModule({ imports: [BrowserModule, UpgradeModule], declarations: [Ng2Component], entryComponents: [Ng2Component] }) class Ng2Module { ngDoBootstrap() {} } const ng1Module = angular.module('ng1', []) .directive('ng2', downgradeComponent({component: Ng2Component})) .run(($rootScope: angular.IRootScopeService) => { $rootScope['items'] = [ {id: 'a', subitems: [1, 2, 3]}, {id: 'b', subitems: [4, 5, 6]}, {id: 'c', subitems: [7, 8, 9]} ]; }); const element = html(`
{{ subitem }}
`); bootstrap(platformBrowserDynamic(), Ng2Module, element, ng1Module).then(upgrade => { expect(multiTrim(document.body.textContent)) .toBe('ng2-a( 123 )ng2-b( 456 )ng2-c( 789 )'); }); })); it('should instantiate ng1 in ng2 template and project content', async(() => { @Component({ selector: 'ng2', template: `{{ 'ng2(' }}{{ transclude }}{{ ')' }}`, }) class Ng2Component { prop = 'ng2'; transclude = 'ng2-transclude'; } @Directive({selector: 'ng1'}) class Ng1WrapperComponent extends UpgradeComponent { constructor(elementRef: ElementRef, injector: Injector) { super('ng1', elementRef, injector); } } @NgModule({ declarations: [Ng1WrapperComponent, Ng2Component], entryComponents: [Ng2Component], imports: [BrowserModule, UpgradeModule] }) class Ng2Module { ngDoBootstrap() {} } const ng1Module = angular.module('ng1', []) .directive('ng1', () => ({ transclude: true, template: '{{ prop }}()' })) .directive('ng2', downgradeComponent({component: Ng2Component})) .run(($rootScope: angular.IRootScopeService) => { $rootScope['prop'] = 'ng1'; $rootScope['transclude'] = 'ng1-transclude'; }); const element = html('
{{ \'ng1(\' }}{{ \')\' }}
'); bootstrap(platformBrowserDynamic(), Ng2Module, element, ng1Module).then((upgrade) => { expect(document.body.textContent).toEqual('ng1(ng2(ng1(ng2-transclude)))'); }); })); it('should support multi-slot projection', async(() => { @Component({ selector: 'ng2', template: '2a()' + '2b()' }) class Ng2Component { constructor() {} } @NgModule({ declarations: [Ng2Component], entryComponents: [Ng2Component], imports: [BrowserModule, UpgradeModule] }) class Ng2Module { ngDoBootstrap() {} } const ng1Module = angular.module('ng1', []).directive( 'ng2', downgradeComponent({component: Ng2Component})); // The ng-if on one of the projected children is here to make sure // the correct slot is targeted even with structural directives in play. const element = html( '
1a
1b
'); bootstrap(platformBrowserDynamic(), Ng2Module, element, ng1Module).then((upgrade) => { expect(document.body.textContent).toEqual('2a(1a)2b(1b)'); }); })); }); });