ab26b6518d
Allow to style components that don’t use shadow dom inside of components that do. This reverts 53cf2ec5731af3e6fe700d8db48b15b1e5aa17e3 and adds a test for this case. Related to #7887
99 lines
2.8 KiB
TypeScript
99 lines
2.8 KiB
TypeScript
/**
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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 {CommonModule} from '@angular/common';
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import {Component, NgModule, ViewEncapsulation} from '@angular/core';
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import {TestBed} from '@angular/core/testing';
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import {BrowserModule} from '@angular/platform-browser';
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import {By} from '@angular/platform-browser/src/dom/debug/by';
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import {browserDetection} from '@angular/platform-browser/testing/browser_util';
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import {expect} from '@angular/platform-browser/testing/matchers';
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export function main() {
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describe('DomRenderer', () => {
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beforeEach(() => TestBed.configureTestingModule({imports: [BrowserModule, TestModule]}));
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// other browsers don't support shadow dom
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if (browserDetection.isChromeDesktop) {
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it('should allow to style components with emulated encapsulation and no encapsulation inside of components with shadow DOM',
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() => {
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TestBed.overrideComponent(CmpEncapsulationNative, {
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set: {
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template:
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'<div class="native"></div><cmp-emulated></cmp-emulated><cmp-none></cmp-none>'
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}
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});
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const fixture = TestBed.createComponent(SomeApp);
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const cmp = fixture.debugElement.query(By.css('cmp-native')).nativeElement;
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const native = cmp.shadowRoot.querySelector('.native');
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expect(window.getComputedStyle(native).color).toEqual('rgb(255, 0, 0)');
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const emulated = cmp.shadowRoot.querySelector('.emulated');
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expect(window.getComputedStyle(emulated).color).toEqual('rgb(0, 0, 255)');
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const none = cmp.shadowRoot.querySelector('.none');
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expect(window.getComputedStyle(none).color).toEqual('rgb(0, 255, 0)');
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});
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}
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});
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}
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@Component({
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selector: 'cmp-native',
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template: `<div class="native"></div>`,
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styles: [`.native { color: red; }`],
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encapsulation: ViewEncapsulation.Native
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})
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class CmpEncapsulationNative {
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}
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@Component({
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selector: 'cmp-emulated',
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template: `<div class="emulated"></div>`,
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styles: [`.emulated { color: blue; }`],
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encapsulation: ViewEncapsulation.Emulated
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})
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class CmpEncapsulationEmulated {
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}
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@Component({
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selector: 'cmp-none',
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template: `<div class="none"></div>`,
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styles: [`.none { color: lime; }`],
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encapsulation: ViewEncapsulation.None
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})
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class CmpEncapsulationNone {
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}
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@Component({
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selector: 'some-app',
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template: `
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<cmp-native></cmp-native>
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<cmp-emulated></cmp-emulated>
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<cmp-none></cmp-none>
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`,
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})
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export class SomeApp {
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}
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@NgModule({
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declarations: [
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SomeApp,
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CmpEncapsulationNative,
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CmpEncapsulationEmulated,
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CmpEncapsulationNone,
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],
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imports: [CommonModule]
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})
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class TestModule {
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}
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