2423 lines
82 KiB
TypeScript
2423 lines
82 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 {Component, ComponentFactoryResolver, ComponentRef, Directive, ElementRef, HostBinding, Input, NgModule, Renderer2, ViewChild, ViewContainerRef} from '@angular/core';
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import {getDebugNode} from '@angular/core/src/render3/util/discovery_utils';
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import {ngDevModeResetPerfCounters} from '@angular/core/src/util/ng_dev_mode';
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import {TestBed} from '@angular/core/testing';
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import {By, DomSanitizer, SafeStyle} from '@angular/platform-browser';
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import {expect} from '@angular/platform-browser/testing/src/matchers';
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import {ivyEnabled, onlyInIvy} from '@angular/private/testing';
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describe('styling', () => {
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beforeEach(ngDevModeResetPerfCounters);
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it('should render inline style and class attribute values on the element before a directive is instantiated',
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() => {
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@Component({
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template: `
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<div directive-expecting-styling style="width:200px" class="abc xyz"></div>
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`
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})
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class Cmp {
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}
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@Directive({selector: '[directive-expecting-styling]'})
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class DirectiveExpectingStyling {
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constructor(elm: ElementRef) {
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const native = elm.nativeElement;
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native.setAttribute('data-captured-width', native.style.width);
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native.setAttribute('data-captured-classes', native.className);
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}
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}
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TestBed.configureTestingModule({declarations: [Cmp, DirectiveExpectingStyling]});
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const fixture = TestBed.createComponent(Cmp);
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fixture.detectChanges();
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const element = fixture.nativeElement.querySelector('div');
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expect(element.style.width).toEqual('200px');
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expect(element.getAttribute('data-captured-width')).toEqual('200px');
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expect(element.className.trim()).toEqual('abc xyz');
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expect(element.getAttribute('data-captured-classes')).toEqual('abc xyz');
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});
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it('should only render the same initial styling values once before a directive runs', () => {
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@Component({
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template: `
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<div directive-expecting-styling style="width:200px" class="abc"></div>
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`
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})
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class Cmp {
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}
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@Directive({selector: '[directive-expecting-styling]'})
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class DirectiveExpectingStyling {
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constructor(elm: ElementRef) {
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const native = elm.nativeElement;
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native.style.width = '300px';
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native.classList.remove('abc');
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}
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}
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TestBed.configureTestingModule({declarations: [Cmp, DirectiveExpectingStyling]});
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const fixture = TestBed.createComponent(Cmp);
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fixture.detectChanges();
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const element = fixture.nativeElement.querySelector('div');
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expect(element.style.width).toEqual('300px');
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expect(element.classList.contains('abc')).toBeFalsy();
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});
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it('should ensure that static classes are assigned to ng-container elements and picked up for content projection',
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() => {
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@Component({
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template: `
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<project>
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outer
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<ng-container class="inner">
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inner
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</ng-container>
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</project>
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`
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})
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class MyApp {
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}
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@Component({
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selector: 'project',
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template: `
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<div class="outer-area">
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<ng-content></ng-content>
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</div>
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<div class="inner-area">
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<ng-content select=".inner"></ng-content>
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</div>
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`
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})
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class ProjectCmp {
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}
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TestBed.configureTestingModule({declarations: [MyApp, ProjectCmp]});
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const fixture = TestBed.createComponent(MyApp);
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const element = fixture.nativeElement;
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fixture.detectChanges();
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const inner = element.querySelector('.inner-area');
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expect(inner.textContent.trim()).toEqual('inner');
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const outer = element.querySelector('.outer-area');
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expect(outer.textContent.trim()).toEqual('outer');
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});
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it('should render initial styling for repeated nodes that a component host', () => {
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@Component({
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selector: '[comp]',
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template: '',
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})
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class Comp {
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}
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@Component({
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template: `
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<ng-template ngFor [ngForOf]="items" let-item>
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<p comp class="a">A</p>
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</ng-template>
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`
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})
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class App {
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items = [1, 2, 3];
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}
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TestBed.configureTestingModule({
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declarations: [App, Comp],
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});
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const fixture = TestBed.createComponent(App);
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fixture.detectChanges();
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expect(fixture.debugElement.queryAll(By.css('.a')).length).toBe(3);
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});
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it('should do nothing for empty style bindings', () => {
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@Component({template: '<div [style.color]></div>'})
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class App {
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}
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TestBed.configureTestingModule({declarations: [App]});
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const fixture = TestBed.createComponent(App);
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fixture.detectChanges();
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expect(fixture.nativeElement.innerHTML).toBe('<div></div>');
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});
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it('should do nothing for empty class bindings', () => {
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@Component({template: '<div [class.is-open]></div>'})
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class App {
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}
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TestBed.configureTestingModule({declarations: [App]});
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const fixture = TestBed.createComponent(App);
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fixture.detectChanges();
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expect(fixture.nativeElement.innerHTML).toBe('<div></div>');
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});
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it('should be able to bind zero', () => {
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@Component({template: '<div #div [style.opacity]="opacity"></div>'})
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class App {
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@ViewChild('div') div !: ElementRef<HTMLElement>;
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opacity = 0;
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}
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TestBed.configureTestingModule({declarations: [App]});
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const fixture = TestBed.createComponent(App);
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fixture.detectChanges();
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expect(fixture.componentInstance.div.nativeElement.style.opacity).toBe('0');
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});
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it('should be able to bind a SafeValue to backgroundImage', () => {
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@Component({template: '<div [style.backgroundImage]="image"></div>'})
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class Cmp {
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image !: SafeStyle;
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}
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TestBed.configureTestingModule({declarations: [Cmp]});
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const fixture = TestBed.createComponent(Cmp);
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const sanitizer: DomSanitizer = TestBed.inject(DomSanitizer);
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fixture.componentInstance.image = sanitizer.bypassSecurityTrustStyle('url("#test")');
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fixture.detectChanges();
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const div = fixture.nativeElement.querySelector('div') as HTMLDivElement;
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expect(div.style.backgroundImage).toBe('url("#test")');
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onlyInIvy('perf counters').expectPerfCounters({
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styleProp: 2,
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stylePropCacheMiss: 1,
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tNode: 3,
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});
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});
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it('should not throw if host style binding is on a template node', () => {
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// This ex is a bit contrived. In real apps, you might have a shared class that is extended both
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// by components with host elements and by directives on template nodes. In that case, the host
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// styles for the template directives should just be ignored.
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@Directive({selector: 'ng-template[styleDir]', host: {'[style.display]': 'display'}})
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class StyleDir {
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display = 'block';
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}
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@Component({selector: 'app-comp', template: `<ng-template styleDir></ng-template>`})
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class MyApp {
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}
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TestBed.configureTestingModule({declarations: [MyApp, StyleDir]});
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expect(() => {
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const fixture = TestBed.createComponent(MyApp);
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fixture.detectChanges();
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}).not.toThrow();
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});
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it('should be able to bind a SafeValue to clip-path', () => {
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@Component({template: '<div [style.clip-path]="path"></div>'})
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class Cmp {
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path !: SafeStyle;
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}
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TestBed.configureTestingModule({declarations: [Cmp]});
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const fixture = TestBed.createComponent(Cmp);
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const sanitizer: DomSanitizer = TestBed.inject(DomSanitizer);
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fixture.componentInstance.path = sanitizer.bypassSecurityTrustStyle('url("#test")');
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fixture.detectChanges();
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const html = fixture.nativeElement.innerHTML;
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// Note that check the raw HTML, because (at the time of writing) the Node-based renderer
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// that we use to run tests doesn't support `clip-path` in `CSSStyleDeclaration`.
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expect(html).toMatch(/style=["|']clip-path:\s*url\(.*#test.*\)/);
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});
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it('should support interpolations inside a class binding', () => {
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@Component({
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template: `
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<div class="a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f{{six}}g{{seven}}h{{eight}}i{{nine}}j"></div>
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<div class="a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f{{six}}g{{seven}}h{{eight}}i"></div>
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<div class="a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f{{six}}g{{seven}}h"></div>
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<div class="a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f{{six}}g"></div>
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<div class="a{{one}}b{{two}}c{{three}}d{{four}}e{{five}}f"></div>
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<div class="a{{one}}b{{two}}c{{three}}d{{four}}e"></div>
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<div class="a{{one}}b{{two}}c{{three}}d"></div>
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<div class="a{{one}}b{{two}}c"></div>
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<div class="a{{one}}b"></div>
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<div class="{{one}}"></div>
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`
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})
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class Cmp {
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one = 'one';
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two = 'two';
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three = 'three';
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four = 'four';
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five = 'five';
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six = 'six';
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seven = 'seven';
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eight = 'eight';
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nine = 'nine';
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}
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TestBed.configureTestingModule({declarations: [Cmp]});
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const fixture = TestBed.createComponent(Cmp);
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const instance = fixture.componentInstance;
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fixture.detectChanges();
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const divs = fixture.nativeElement.querySelectorAll('div');
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expect(divs[0].getAttribute('class')).toBe('aonebtwocthreedfourefivefsixgsevenheightininej');
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expect(divs[1].getAttribute('class')).toBe('aonebtwocthreedfourefivefsixgsevenheighti');
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expect(divs[2].getAttribute('class')).toBe('aonebtwocthreedfourefivefsixgsevenh');
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expect(divs[3].getAttribute('class')).toBe('aonebtwocthreedfourefivefsixg');
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expect(divs[4].getAttribute('class')).toBe('aonebtwocthreedfourefivef');
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expect(divs[5].getAttribute('class')).toBe('aonebtwocthreedfoure');
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expect(divs[6].getAttribute('class')).toBe('aonebtwocthreed');
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expect(divs[7].getAttribute('class')).toBe('aonebtwoc');
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expect(divs[8].getAttribute('class')).toBe('aoneb');
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expect(divs[9].getAttribute('class')).toBe('one');
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instance.one = instance.two = instance.three = instance.four = instance.five = instance.six =
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instance.seven = instance.eight = instance.nine = '';
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fixture.detectChanges();
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expect(divs[0].getAttribute('class')).toBe('abcdefghij');
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expect(divs[1].getAttribute('class')).toBe('abcdefghi');
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expect(divs[2].getAttribute('class')).toBe('abcdefgh');
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expect(divs[3].getAttribute('class')).toBe('abcdefg');
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expect(divs[4].getAttribute('class')).toBe('abcdef');
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expect(divs[5].getAttribute('class')).toBe('abcde');
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expect(divs[6].getAttribute('class')).toBe('abcd');
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expect(divs[7].getAttribute('class')).toBe('abc');
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expect(divs[8].getAttribute('class')).toBe('ab');
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expect(divs[9].getAttribute('class')).toBeFalsy();
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});
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it('should support interpolations inside a class binding when other classes are present', () => {
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@Component({template: '<div class="zero i-{{one}} {{two}} three"></div>'})
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class Cmp {
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one = 'one';
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two = 'two';
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}
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TestBed.configureTestingModule({declarations: [Cmp]});
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const fixture = TestBed.createComponent(Cmp);
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fixture.detectChanges();
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const classList = fixture.nativeElement.querySelector('div').classList;
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expect(classList).toContain('zero');
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expect(classList).toContain('i-one');
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expect(classList).toContain('two');
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expect(classList).toContain('three');
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fixture.componentInstance.one = fixture.componentInstance.two = '';
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fixture.detectChanges();
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expect(classList).toContain('zero');
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expect(classList).toContain('i-');
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expect(classList).toContain('three');
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expect(classList).not.toContain('i-one');
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expect(classList).not.toContain('two');
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});
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it('should support interpolations inside a style property binding', () => {
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@Component({
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template: `
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<div style.font-family="f{{one}}{{two}}{{three}}{{four}}{{five}}{{six}}{{seven}}{{eight}}{{nine}}"></div>
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<div style.font-family="f{{one}}{{two}}{{three}}{{four}}{{five}}{{six}}{{seven}}{{eight}}"></div>
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<div style.font-family="f{{one}}{{two}}{{three}}{{four}}{{five}}{{six}}{{seven}}"></div>
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<div style.font-family="f{{one}}{{two}}{{three}}{{four}}{{five}}{{six}}"></div>
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<div style.font-family="f{{one}}{{two}}{{three}}{{four}}{{five}}"></div>
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<div style.font-family="f{{one}}{{two}}{{three}}{{four}}"></div>
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<div style.font-family="f{{one}}{{two}}{{three}}"></div>
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<div style.font-family="f{{one}}{{two}}"></div>
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<div style.font-family="f{{one}}"></div>
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<div style.width="{{singleBinding}}"></div>
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`
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})
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class Cmp {
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singleBinding: string|null = '1337px';
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one = 1;
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two = 2;
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three = 3;
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four = 4;
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five = 5;
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six = 6;
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seven = 7;
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eight = 8;
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nine = 9;
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}
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TestBed.configureTestingModule({declarations: [Cmp]});
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const fixture = TestBed.createComponent(Cmp);
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const instance = fixture.componentInstance;
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fixture.detectChanges();
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const divs: NodeListOf<HTMLElement> = fixture.nativeElement.querySelectorAll('div');
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expect(divs[0].style.fontFamily).toBe('f123456789');
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expect(divs[1].style.fontFamily).toBe('f12345678');
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expect(divs[2].style.fontFamily).toBe('f1234567');
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expect(divs[3].style.fontFamily).toBe('f123456');
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expect(divs[4].style.fontFamily).toBe('f12345');
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expect(divs[5].style.fontFamily).toBe('f1234');
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expect(divs[6].style.fontFamily).toBe('f123');
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expect(divs[7].style.fontFamily).toBe('f12');
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expect(divs[8].style.fontFamily).toBe('f1');
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expect(divs[9].style.width).toBe('1337px');
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instance.singleBinding = null;
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instance.one = instance.two = instance.three = instance.four = instance.five = instance.six =
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instance.seven = instance.eight = instance.nine = 1;
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fixture.detectChanges();
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expect(divs[0].style.fontFamily).toBe('f111111111');
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expect(divs[1].style.fontFamily).toBe('f11111111');
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expect(divs[2].style.fontFamily).toBe('f1111111');
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expect(divs[3].style.fontFamily).toBe('f111111');
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expect(divs[4].style.fontFamily).toBe('f11111');
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expect(divs[5].style.fontFamily).toBe('f1111');
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expect(divs[6].style.fontFamily).toBe('f111');
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expect(divs[7].style.fontFamily).toBe('f11');
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expect(divs[8].style.fontFamily).toBe('f1');
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expect(divs[9].style.width).toBeFalsy();
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});
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it('should support interpolations when a style property has a unit suffix', () => {
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@Component({template: '<div style.width.px="{{one}}{{three}}{{three}}7"></div>'})
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class Cmp {
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one = 1;
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three = 3;
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}
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TestBed.configureTestingModule({declarations: [Cmp]});
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const fixture = TestBed.createComponent(Cmp);
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fixture.detectChanges();
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const div = fixture.nativeElement.querySelector('div');
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expect(div.style.width).toBe('1337px');
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fixture.componentInstance.one = 2;
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fixture.componentInstance.three = 6;
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fixture.detectChanges();
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expect(div.style.width).toBe('2667px');
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});
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it('should not write to a `class` input binding in the event that there is no static class value',
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() => {
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let capturedClassBindingCount = 0;
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let capturedClassBindingValue: string|null|undefined = undefined;
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let capturedMyClassBindingCount = 0;
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let capturedMyClassBindingValue: string|null|undefined = undefined;
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@Component({template: '<div [class]="c" [my-class-dir]="x"></div>'})
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class Cmp {
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c: any = null;
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x = 'foo';
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}
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@Directive({selector: '[my-class-dir]'})
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class MyClassDir {
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@Input('class')
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set classVal(v: string) {
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capturedClassBindingCount++;
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capturedClassBindingValue = v;
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}
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@Input('my-class-dir')
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set myClassVal(v: string) {
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capturedMyClassBindingCount++;
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capturedMyClassBindingValue = v;
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}
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}
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TestBed.configureTestingModule({declarations: [Cmp, MyClassDir]});
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const fixture = TestBed.createComponent(Cmp);
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fixture.detectChanges();
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expect(capturedClassBindingCount).toEqual(1);
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expect(capturedClassBindingValue as any).toEqual(null);
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expect(capturedMyClassBindingCount).toEqual(1);
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expect(capturedMyClassBindingValue !).toEqual('foo');
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fixture.componentInstance.c = 'dynamic-value';
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fixture.detectChanges();
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expect(capturedClassBindingCount).toEqual(2);
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expect(capturedClassBindingValue !).toEqual('dynamic-value');
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expect(capturedMyClassBindingCount).toEqual(1);
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expect(capturedMyClassBindingValue !).toEqual('foo');
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fixture.componentInstance.c = null;
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fixture.detectChanges();
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expect(capturedClassBindingCount).toEqual(3);
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expect(capturedClassBindingValue as any).toEqual(null);
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expect(capturedMyClassBindingCount).toEqual(1);
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expect(capturedMyClassBindingValue !).toEqual('foo');
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fixture.componentInstance.c = '';
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fixture.detectChanges();
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expect(capturedClassBindingCount).toEqual(4);
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expect(capturedClassBindingValue as any).toEqual('');
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expect(capturedMyClassBindingCount).toEqual(1);
|
|
expect(capturedMyClassBindingValue !).toEqual('foo');
|
|
});
|
|
|
|
it('should write to [class] binding during `update` mode if there is an instantiation-level value',
|
|
() => {
|
|
let capturedClassBindingCount = 0;
|
|
let capturedClassBindingValue: string|null|undefined = undefined;
|
|
|
|
@Component({template: '<div [class]="c" my-class-dir></div>'})
|
|
class Cmp {
|
|
c: any = 'bar';
|
|
}
|
|
|
|
@Directive({selector: '[my-class-dir]'})
|
|
class MyClassDir {
|
|
@Input('class')
|
|
set classVal(v: string) {
|
|
capturedClassBindingCount++;
|
|
capturedClassBindingValue = v;
|
|
}
|
|
}
|
|
|
|
// Ivy does an extra `[class]` write with a falsy value since the value
|
|
// is applied during creation mode. This is a deviation from VE and should
|
|
// be (Jira Issue = FW-1467).
|
|
let totalWrites = ivyEnabled ? 1 : 0;
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, MyClassDir]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
expect(capturedClassBindingCount).toEqual(totalWrites++);
|
|
fixture.detectChanges();
|
|
|
|
expect(capturedClassBindingCount).toEqual(totalWrites++);
|
|
expect(capturedClassBindingValue as any).toEqual('bar');
|
|
|
|
fixture.componentInstance.c = 'dynamic-bar';
|
|
fixture.detectChanges();
|
|
|
|
expect(capturedClassBindingCount).toEqual(totalWrites++);
|
|
expect(capturedClassBindingValue !).toEqual('dynamic-bar');
|
|
});
|
|
|
|
it('should write to a `class` input binding if there is a static class value', () => {
|
|
let capturedClassBindingCount = 0;
|
|
let capturedClassBindingValue: string|null = null;
|
|
let capturedMyClassBindingCount = 0;
|
|
let capturedMyClassBindingValue: string|null = null;
|
|
|
|
@Component({template: '<div class="static-val" [my-class-dir]="x"></div>'})
|
|
class Cmp {
|
|
x = 'foo';
|
|
}
|
|
|
|
@Directive({selector: '[my-class-dir]'})
|
|
class MyClassDir {
|
|
@Input('class')
|
|
set classVal(v: string) {
|
|
capturedClassBindingCount++;
|
|
capturedClassBindingValue = v;
|
|
}
|
|
|
|
@Input('my-class-dir')
|
|
set myClassVal(v: string) {
|
|
capturedMyClassBindingCount++;
|
|
capturedMyClassBindingValue = v;
|
|
}
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, MyClassDir]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
expect(capturedClassBindingValue !).toEqual('static-val');
|
|
expect(capturedClassBindingCount).toEqual(1);
|
|
expect(capturedMyClassBindingValue !).toEqual('foo');
|
|
expect(capturedMyClassBindingCount).toEqual(1);
|
|
});
|
|
|
|
it('should write to a `className` input binding', () => {
|
|
@Component({
|
|
selector: 'comp',
|
|
template: `{{className}}`,
|
|
})
|
|
class Comp {
|
|
@Input() className: string = '';
|
|
}
|
|
@Component({
|
|
template: `<comp [className]="'my-className'"></comp>`,
|
|
})
|
|
class App {
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Comp, App]});
|
|
const fixture = TestBed.createComponent(App);
|
|
fixture.detectChanges();
|
|
expect(fixture.debugElement.nativeElement.firstChild.innerHTML).toBe('my-className');
|
|
});
|
|
|
|
onlyInIvy('only ivy combines static and dynamic class-related attr values')
|
|
.it('should write to a `className` input binding, when static `class` is present', () => {
|
|
@Component({
|
|
selector: 'comp',
|
|
template: `{{className}}`,
|
|
})
|
|
class Comp {
|
|
@Input() className: string = '';
|
|
}
|
|
|
|
@Component({
|
|
template: `<comp class="static" [className]="'my-className'"></comp>`,
|
|
})
|
|
class App {
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Comp, App]});
|
|
const fixture = TestBed.createComponent(App);
|
|
fixture.detectChanges();
|
|
expect(fixture.debugElement.nativeElement.firstChild.innerHTML).toBe('static my-className');
|
|
});
|
|
|
|
onlyInIvy('in Ivy [class] and [className] bindings on the same element are not allowed')
|
|
.it('should throw an error in case [class] and [className] bindings are used on the same element',
|
|
() => {
|
|
@Component({
|
|
selector: 'comp',
|
|
template: `{{class}} - {{className}}`,
|
|
})
|
|
class Comp {
|
|
@Input() class: string = '';
|
|
@Input() className: string = '';
|
|
}
|
|
@Component({
|
|
template: `<comp [class]="'my-class'" [className]="'className'"></comp>`,
|
|
})
|
|
class App {
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Comp, App]});
|
|
expect(() => {
|
|
const fixture = TestBed.createComponent(App);
|
|
fixture.detectChanges();
|
|
})
|
|
.toThrowError(
|
|
'[class] and [className] bindings cannot be used on the same element simultaneously');
|
|
});
|
|
|
|
onlyInIvy('only ivy persists static class/style attrs with their binding counterparts')
|
|
.it('should write to a `class` input binding if there is a static class value and there is a binding value',
|
|
() => {
|
|
let capturedClassBindingCount = 0;
|
|
let capturedClassBindingValue: string|null = null;
|
|
let capturedMyClassBindingCount = 0;
|
|
let capturedMyClassBindingValue: string|null = null;
|
|
|
|
@Component({template: '<div class="static-val" [class]="c" [my-class-dir]="x"></div>'})
|
|
class Cmp {
|
|
c: any = null;
|
|
x: any = 'foo';
|
|
}
|
|
|
|
@Directive({selector: '[my-class-dir]'})
|
|
class MyClassDir {
|
|
@Input('class')
|
|
set classVal(v: string) {
|
|
capturedClassBindingCount++;
|
|
capturedClassBindingValue = v;
|
|
}
|
|
|
|
@Input('my-class-dir')
|
|
set myClassVal(v: string) {
|
|
capturedMyClassBindingCount++;
|
|
capturedMyClassBindingValue = v;
|
|
}
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, MyClassDir]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
expect(capturedClassBindingCount).toEqual(1);
|
|
expect(capturedClassBindingValue !).toEqual('static-val');
|
|
expect(capturedMyClassBindingCount).toEqual(1);
|
|
expect(capturedMyClassBindingValue !).toEqual('foo');
|
|
|
|
fixture.componentInstance.c = 'dynamic-val';
|
|
fixture.detectChanges();
|
|
|
|
expect(capturedClassBindingCount).toEqual(2);
|
|
expect(capturedClassBindingValue !).toEqual('static-val dynamic-val');
|
|
expect(capturedMyClassBindingCount).toEqual(1);
|
|
expect(capturedMyClassBindingValue !).toEqual('foo');
|
|
});
|
|
|
|
onlyInIvy('only ivy balances styling across directives and component host bindings')
|
|
.it('should allow multiple directives to set dynamic and static classes independent of one another',
|
|
() => {
|
|
@Component({
|
|
template: `
|
|
<div dir-one dir-two></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
}
|
|
|
|
@Directive({selector: '[dir-one]', host: {'[class.dir-one]': 'dirOneExp'}})
|
|
class DirOne {
|
|
dirOneExp = true;
|
|
}
|
|
|
|
@Directive({selector: '[dir-two]', host: {'class': 'dir-two'}})
|
|
class DirTwo {
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirOne, DirTwo]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
expect(element.classList.contains('dir-one')).toBeTruthy();
|
|
expect(element.classList.contains('dir-two')).toBeTruthy();
|
|
});
|
|
|
|
describe('NgClass', () => {
|
|
|
|
// We had a bug where NgClass would not allocate sufficient slots for host bindings,
|
|
// so it would overwrite information about other directives nearby. This test checks
|
|
// that TestDir's injector is not overwritten by NgClass, so TestDir should still
|
|
// be found by DI when ChildDir is instantiated.
|
|
it('should not overwrite other directive info when using NgClass', () => {
|
|
@Directive({selector: '[test-dir]'})
|
|
class TestDir {
|
|
}
|
|
|
|
@Directive({selector: '[child-dir]'})
|
|
class ChildDir {
|
|
constructor(public parent: TestDir) {}
|
|
}
|
|
|
|
@Component({
|
|
selector: 'app',
|
|
template: `
|
|
<div class="my-class" [ngClass]="classMap" test-dir>
|
|
<div *ngIf="showing" child-dir>Hello</div>
|
|
</div>
|
|
`
|
|
})
|
|
class AppComponent {
|
|
classMap = {'with-button': true};
|
|
showing = false;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [AppComponent, TestDir, ChildDir]});
|
|
const fixture = TestBed.createComponent(AppComponent);
|
|
fixture.detectChanges();
|
|
const testDirDiv = fixture.debugElement.nativeElement.querySelector('div');
|
|
expect(testDirDiv.classList).toContain('with-button');
|
|
expect(fixture.debugElement.nativeElement.textContent).not.toContain('Hello');
|
|
|
|
fixture.componentInstance.classMap = {'with-button': false};
|
|
fixture.componentInstance.showing = true;
|
|
fixture.detectChanges();
|
|
|
|
const childDir = fixture.debugElement.query(By.directive(ChildDir)).injector.get(ChildDir);
|
|
expect(childDir.parent).toBeAnInstanceOf(TestDir);
|
|
expect(testDirDiv.classList).not.toContain('with-button');
|
|
expect(fixture.debugElement.nativeElement.textContent).toContain('Hello');
|
|
});
|
|
});
|
|
|
|
it('should be able to name inputs starting with `class` or `style`', () => {
|
|
@Directive({selector: '[dir]'})
|
|
class Dir {
|
|
@Input('classesInSchool') classes = '';
|
|
@Input('styleOfClothing') style = '';
|
|
}
|
|
|
|
@Component({
|
|
template: '<span dir [classesInSchool]="classes" [styleOfClothing]="style"></span>',
|
|
})
|
|
class App {
|
|
@ViewChild(Dir) dir !: Dir;
|
|
|
|
classes = 'math';
|
|
style = '80s';
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [App, Dir]});
|
|
const fixture = TestBed.createComponent(App);
|
|
fixture.detectChanges();
|
|
const directive = fixture.componentInstance.dir;
|
|
|
|
expect(directive.classes).toBe('math');
|
|
expect(directive.style).toBe('80s');
|
|
});
|
|
|
|
it('should be able to bind to `className`', () => {
|
|
@Component({template: ''})
|
|
class App {
|
|
@HostBinding('className')
|
|
klass = 'one two';
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [App]});
|
|
const fixture = TestBed.createComponent(App);
|
|
fixture.detectChanges();
|
|
const classList = fixture.nativeElement.classList;
|
|
|
|
expect(classList.contains('one')).toBe(true);
|
|
expect(classList.contains('two')).toBe(true);
|
|
});
|
|
|
|
onlyInIvy('ivy resolves styling across directives, components and templates in unison')
|
|
.it('should apply single property styles/classes to the element and default to any static styling values',
|
|
() => {
|
|
@Component({
|
|
template: `
|
|
<div [style.width]="w"
|
|
[style.height]="h"
|
|
[style.opacity]="o"
|
|
style="width:200px; height:200px;"
|
|
[class.abc]="abc"
|
|
[class.xyz]="xyz"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
w: string|null = '100px';
|
|
h: string|null = '100px';
|
|
o: string|null = '0.5';
|
|
abc = true;
|
|
xyz = false;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
expect(element.style.width).toEqual('100px');
|
|
expect(element.style.height).toEqual('100px');
|
|
expect(element.style.opacity).toEqual('0.5');
|
|
expect(element.classList.contains('abc')).toBeTruthy();
|
|
expect(element.classList.contains('xyz')).toBeFalsy();
|
|
|
|
fixture.componentInstance.w = null;
|
|
fixture.componentInstance.h = null;
|
|
fixture.componentInstance.o = null;
|
|
fixture.componentInstance.abc = false;
|
|
fixture.componentInstance.xyz = true;
|
|
fixture.detectChanges();
|
|
|
|
expect(element.style.width).toEqual('200px');
|
|
expect(element.style.height).toEqual('200px');
|
|
expect(element.style.opacity).toBeFalsy();
|
|
expect(element.classList.contains('abc')).toBeFalsy();
|
|
expect(element.classList.contains('xyz')).toBeTruthy();
|
|
});
|
|
|
|
onlyInIvy('ivy resolves styling across directives, components and templates in unison')
|
|
.it('should apply single style/class across the template and directive host bindings', () => {
|
|
@Directive({selector: '[dir-that-sets-width]'})
|
|
class DirThatSetsWidthDirective {
|
|
@Input('dir-that-sets-width') @HostBinding('style.width') public width: string = '';
|
|
}
|
|
|
|
@Directive({selector: '[another-dir-that-sets-width]', host: {'[style.width]': 'width'}})
|
|
class AnotherDirThatSetsWidthDirective {
|
|
@Input('another-dir-that-sets-width') public width: string = '';
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<div [style.width]="w0"
|
|
[dir-that-sets-width]="w1"
|
|
[another-dir-that-sets-width]="w2">
|
|
`
|
|
})
|
|
class Cmp {
|
|
w0: string|null = null;
|
|
w1: string|null = null;
|
|
w2: string|null = null;
|
|
}
|
|
|
|
TestBed.configureTestingModule(
|
|
{declarations: [Cmp, DirThatSetsWidthDirective, AnotherDirThatSetsWidthDirective]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.componentInstance.w0 = '100px';
|
|
fixture.componentInstance.w1 = '200px';
|
|
fixture.componentInstance.w2 = '300px';
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
expect(element.style.width).toEqual('100px');
|
|
|
|
fixture.componentInstance.w0 = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(element.style.width).toEqual('200px');
|
|
|
|
fixture.componentInstance.w1 = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(element.style.width).toEqual('300px');
|
|
|
|
fixture.componentInstance.w2 = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(element.style.width).toBeFalsy();
|
|
|
|
fixture.componentInstance.w2 = '400px';
|
|
fixture.detectChanges();
|
|
|
|
expect(element.style.width).toEqual('400px');
|
|
|
|
fixture.componentInstance.w1 = '500px';
|
|
fixture.componentInstance.w0 = '600px';
|
|
fixture.detectChanges();
|
|
|
|
expect(element.style.width).toEqual('600px');
|
|
});
|
|
|
|
onlyInIvy('ivy resolves styling across directives, components and templates in unison')
|
|
.it('should only run stylingFlush once when there are no collisions between styling properties',
|
|
() => {
|
|
@Directive({selector: '[dir-with-styling]'})
|
|
class DirWithStyling {
|
|
@HostBinding('style.font-size') public fontSize = '100px';
|
|
}
|
|
|
|
@Component({selector: 'comp-with-styling'})
|
|
class CompWithStyling {
|
|
@HostBinding('style.width') public width = '900px';
|
|
|
|
@HostBinding('style.height') public height = '900px';
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<comp-with-styling
|
|
[style.opacity]="opacity"
|
|
dir-with-styling>...</comp-with-styling>
|
|
`
|
|
})
|
|
class Cmp {
|
|
opacity: string|null = '0.5';
|
|
@ViewChild(CompWithStyling, {static: true})
|
|
compWithStyling: CompWithStyling|null = null;
|
|
@ViewChild(DirWithStyling, {static: true}) dirWithStyling: DirWithStyling|null = null;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirWithStyling, CompWithStyling]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const component = fixture.componentInstance;
|
|
const element = fixture.nativeElement.querySelector('comp-with-styling');
|
|
const node = getDebugNode(element) !;
|
|
|
|
const styles = node.styles !;
|
|
const config = styles.context.config;
|
|
expect(config.hasCollisions).toBeFalsy();
|
|
expect(config.hasMapBindings).toBeFalsy();
|
|
expect(config.hasPropBindings).toBeTruthy();
|
|
expect(config.allowDirectStyling).toBeTruthy();
|
|
|
|
expect(element.style.opacity).toEqual('0.5');
|
|
expect(element.style.width).toEqual('900px');
|
|
expect(element.style.height).toEqual('900px');
|
|
expect(element.style.fontSize).toEqual('100px');
|
|
|
|
// once for the template flush and again for the host bindings
|
|
expect(ngDevMode !.flushStyling).toEqual(2);
|
|
ngDevModeResetPerfCounters();
|
|
|
|
component.opacity = '0.6';
|
|
component.compWithStyling !.height = '100px';
|
|
component.compWithStyling !.width = '100px';
|
|
component.dirWithStyling !.fontSize = '50px';
|
|
fixture.detectChanges();
|
|
|
|
expect(element.style.opacity).toEqual('0.6');
|
|
expect(element.style.width).toEqual('100px');
|
|
expect(element.style.height).toEqual('100px');
|
|
expect(element.style.fontSize).toEqual('50px');
|
|
|
|
// there is no need to flush styling since the styles are applied directly
|
|
expect(ngDevMode !.flushStyling).toEqual(0);
|
|
});
|
|
|
|
onlyInIvy('ivy resolves styling across directives, components and templates in unison')
|
|
.it('should combine all styling across the template, directive and component host bindings',
|
|
() => {
|
|
@Directive({selector: '[dir-with-styling]'})
|
|
class DirWithStyling {
|
|
@HostBinding('style.color') public color = 'red';
|
|
|
|
@HostBinding('style.font-size') public fontSize = '100px';
|
|
|
|
@HostBinding('class.dir') public dirClass = true;
|
|
}
|
|
|
|
@Component({selector: 'comp-with-styling'})
|
|
class CompWithStyling {
|
|
@HostBinding('style.width') public width = '900px';
|
|
|
|
@HostBinding('style.height') public height = '900px';
|
|
|
|
@HostBinding('class.comp') public compClass = true;
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<comp-with-styling
|
|
[style.opacity]="opacity"
|
|
[style.width]="width"
|
|
[class.tpl]="tplClass"
|
|
dir-with-styling>...</comp-with-styling>
|
|
`
|
|
})
|
|
class Cmp {
|
|
opacity: string|null = '0.5';
|
|
width: string|null = 'auto';
|
|
tplClass = true;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirWithStyling, CompWithStyling]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('comp-with-styling');
|
|
|
|
const node = getDebugNode(element) !;
|
|
const styles = node.styles !;
|
|
const classes = node.classes !;
|
|
|
|
expect(styles.values).toEqual({
|
|
'color': 'red',
|
|
'width': 'auto',
|
|
'opacity': '0.5',
|
|
'height': '900px',
|
|
'font-size': '100px'
|
|
});
|
|
expect(classes.values).toEqual({
|
|
'dir': true,
|
|
'comp': true,
|
|
'tpl': true,
|
|
});
|
|
|
|
fixture.componentInstance.width = null;
|
|
fixture.componentInstance.opacity = null;
|
|
fixture.componentInstance.tplClass = false;
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'color': 'red',
|
|
'width': '900px',
|
|
'opacity': null,
|
|
'height': '900px',
|
|
'font-size': '100px'
|
|
});
|
|
expect(classes.values).toEqual({
|
|
'dir': true,
|
|
'comp': true,
|
|
'tpl': false,
|
|
});
|
|
});
|
|
|
|
onlyInIvy('ivy resolves styling across directives, components and templates in unison')
|
|
.it('should properly apply styling across sub and super class directive host bindings',
|
|
() => {
|
|
@Directive({selector: '[super-class-dir]'})
|
|
class SuperClassDirective {
|
|
@HostBinding('style.width') public w1 = '100px';
|
|
}
|
|
|
|
@Component({selector: '[sub-class-dir]'})
|
|
class SubClassDirective extends SuperClassDirective {
|
|
@HostBinding('style.width') public w2 = '200px';
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<div sub-class-dir [style.width]="w3"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
w3: string|null = '300px';
|
|
}
|
|
|
|
TestBed.configureTestingModule(
|
|
{declarations: [Cmp, SuperClassDirective, SubClassDirective]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
|
|
const node = getDebugNode(element) !;
|
|
const styles = node.styles !;
|
|
|
|
expect(styles.values).toEqual({
|
|
'width': '300px',
|
|
});
|
|
|
|
fixture.componentInstance.w3 = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'width': '200px',
|
|
});
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should support situations where there are more than 32 bindings', () => {
|
|
const TOTAL_BINDINGS = 34;
|
|
|
|
let bindingsHTML = '';
|
|
let bindingsArr: any[] = [];
|
|
for (let i = 0; i < TOTAL_BINDINGS; i++) {
|
|
bindingsHTML += `[style.prop${i}]="bindings[${i}]" `;
|
|
bindingsArr.push(null);
|
|
}
|
|
|
|
@Component({template: `<div ${bindingsHTML}></div>`})
|
|
class Cmp {
|
|
bindings = bindingsArr;
|
|
|
|
updateBindings(value: string) {
|
|
for (let i = 0; i < TOTAL_BINDINGS; i++) {
|
|
this.bindings[i] = value + i;
|
|
}
|
|
}
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
|
|
let testValue = 'initial';
|
|
fixture.componentInstance.updateBindings('initial');
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
|
|
const node = getDebugNode(element) !;
|
|
const styles = node.styles !;
|
|
|
|
let values = styles.values;
|
|
let props = Object.keys(values);
|
|
expect(props.length).toEqual(TOTAL_BINDINGS);
|
|
|
|
for (let i = 0; i < props.length; i++) {
|
|
const prop = props[i];
|
|
const value = values[prop] as string;
|
|
const num = value.substr(testValue.length);
|
|
expect(value).toEqual(`initial${num}`);
|
|
}
|
|
|
|
testValue = 'final';
|
|
fixture.componentInstance.updateBindings('final');
|
|
fixture.detectChanges();
|
|
|
|
values = styles.values;
|
|
props = Object.keys(values);
|
|
expect(props.length).toEqual(TOTAL_BINDINGS);
|
|
for (let i = 0; i < props.length; i++) {
|
|
const prop = props[i];
|
|
const value = values[prop] as string;
|
|
const num = value.substr(testValue.length);
|
|
expect(value).toEqual(`final${num}`);
|
|
}
|
|
});
|
|
|
|
onlyInIvy('only ivy has style debugging support')
|
|
.it('should apply map-based style and class entries', () => {
|
|
@Component({template: '<div [style]="s" [class]="c"></div>'})
|
|
class Cmp {
|
|
public c: {[key: string]: any}|null = null;
|
|
updateClasses(classes: string) {
|
|
const c = this.c || (this.c = {});
|
|
Object.keys(this.c).forEach(className => { c[className] = false; });
|
|
classes.split(/\s+/).forEach(className => { c[className] = true; });
|
|
}
|
|
|
|
public s: {[key: string]: any}|null = null;
|
|
updateStyles(prop: string, value: string|number|null) {
|
|
const s = this.s || (this.s = {});
|
|
Object.assign(s, {[prop]: value});
|
|
}
|
|
|
|
reset() {
|
|
this.s = null;
|
|
this.c = null;
|
|
}
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
comp.updateStyles('width', '100px');
|
|
comp.updateStyles('height', '200px');
|
|
comp.updateClasses('abc');
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
const node = getDebugNode(element) !;
|
|
let styles = node.styles !;
|
|
let classes = node.classes !;
|
|
|
|
let stylesSummary = styles.summary;
|
|
let widthSummary = stylesSummary['width'];
|
|
expect(widthSummary.prop).toEqual('width');
|
|
expect(widthSummary.value).toEqual('100px');
|
|
|
|
let heightSummary = stylesSummary['height'];
|
|
expect(heightSummary.prop).toEqual('height');
|
|
expect(heightSummary.value).toEqual('200px');
|
|
|
|
let classesSummary = classes.summary;
|
|
let abcSummary = classesSummary['abc'];
|
|
expect(abcSummary.prop).toEqual('abc');
|
|
expect(abcSummary.value).toBeTruthy();
|
|
|
|
comp.reset();
|
|
comp.updateStyles('width', '500px');
|
|
comp.updateStyles('height', null);
|
|
comp.updateClasses('def');
|
|
fixture.detectChanges();
|
|
|
|
styles = node.styles !;
|
|
classes = node.classes !;
|
|
|
|
stylesSummary = styles.summary;
|
|
widthSummary = stylesSummary['width'];
|
|
expect(widthSummary.value).toEqual('500px');
|
|
|
|
heightSummary = stylesSummary['height'];
|
|
expect(heightSummary.value).toEqual(null);
|
|
|
|
classesSummary = classes.summary;
|
|
abcSummary = classesSummary['abc'];
|
|
expect(abcSummary.prop).toEqual('abc');
|
|
expect(abcSummary.value).toBeFalsy();
|
|
|
|
let defSummary = classesSummary['def'];
|
|
expect(defSummary.prop).toEqual('def');
|
|
expect(defSummary.value).toBeTruthy();
|
|
});
|
|
|
|
onlyInIvy('ivy resolves styling across directives, components and templates in unison')
|
|
.it('should resolve styling collisions across templates, directives and components for prop and map-based entries',
|
|
() => {
|
|
@Directive({selector: '[dir-that-sets-styling]'})
|
|
class DirThatSetsStyling {
|
|
@HostBinding('style') public map: any = {color: 'red', width: '777px'};
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<div [style.width]="width"
|
|
[style]="map"
|
|
style="width:200px; font-size:99px"
|
|
dir-that-sets-styling
|
|
#dir
|
|
[class.xyz]="xyz"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
map: any = {width: '111px', opacity: '0.5'};
|
|
width: string|null = '555px';
|
|
|
|
@ViewChild('dir', {read: DirThatSetsStyling, static: true})
|
|
dir !: DirThatSetsStyling;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirThatSetsStyling]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
const node = getDebugNode(element) !;
|
|
|
|
const styles = node.styles !;
|
|
|
|
expect(styles.values).toEqual({
|
|
'width': '555px',
|
|
'color': 'red',
|
|
'font-size': '99px',
|
|
'opacity': '0.5',
|
|
});
|
|
|
|
comp.width = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'width': '111px',
|
|
'color': 'red',
|
|
'font-size': '99px',
|
|
'opacity': '0.5',
|
|
});
|
|
|
|
comp.map = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'width': '777px',
|
|
'color': 'red',
|
|
'font-size': '99px',
|
|
'opacity': null,
|
|
});
|
|
|
|
comp.dir.map = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'width': '200px',
|
|
'color': null,
|
|
'font-size': '99px',
|
|
'opacity': null,
|
|
});
|
|
});
|
|
|
|
onlyInIvy('ivy resolves styling across directives, components and templates in unison')
|
|
.it('should only apply each styling property once per CD across templates, components, directives',
|
|
() => {
|
|
@Directive({selector: '[dir-that-sets-styling]'})
|
|
class DirThatSetsStyling {
|
|
@HostBinding('style') public map: any = {width: '999px', height: '999px'};
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<div #dir
|
|
style="width:0px; height:0px"
|
|
[style.width]="width"
|
|
[style.height]="height"
|
|
[style]="map"
|
|
dir-that-sets-styling></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
width: string|null = '111px';
|
|
height: string|null = '111px';
|
|
|
|
map: any = {width: '555px', height: '555px'};
|
|
|
|
@ViewChild('dir', {read: DirThatSetsStyling, static: true})
|
|
dir !: DirThatSetsStyling;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirThatSetsStyling]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
|
|
// both are applied because this is the first pass
|
|
assertStyleCounters(2, 0);
|
|
assertStyle(element, 'width', '111px');
|
|
assertStyle(element, 'height', '111px');
|
|
|
|
comp.width = '222px';
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
assertStyleCounters(1, 0);
|
|
assertStyle(element, 'width', '222px');
|
|
assertStyle(element, 'height', '111px');
|
|
|
|
comp.height = '222px';
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
assertStyleCounters(1, 0);
|
|
assertStyle(element, 'width', '222px');
|
|
assertStyle(element, 'height', '222px');
|
|
|
|
comp.width = null;
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
assertStyleCounters(1, 0);
|
|
assertStyle(element, 'width', '555px');
|
|
assertStyle(element, 'height', '222px');
|
|
|
|
comp.width = '123px';
|
|
comp.height = '123px';
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
assertStyle(element, 'width', '123px');
|
|
assertStyle(element, 'height', '123px');
|
|
|
|
comp.map = {};
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
// both are applied because the map was altered
|
|
assertStyleCounters(2, 0);
|
|
assertStyle(element, 'width', '123px');
|
|
assertStyle(element, 'height', '123px');
|
|
|
|
comp.width = null;
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
// the width is applied both in TEMPLATE and in HOST_BINDINGS mode
|
|
assertStyleCounters(2, 0);
|
|
assertStyle(element, 'width', '999px');
|
|
assertStyle(element, 'height', '123px');
|
|
|
|
comp.dir.map = null;
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
// the width is only applied once
|
|
assertStyleCounters(1, 0);
|
|
assertStyle(element, 'width', '0px');
|
|
assertStyle(element, 'height', '123px');
|
|
|
|
comp.dir.map = {width: '1000px', height: '1000px', color: 'red'};
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
// only the width and color have changed
|
|
assertStyleCounters(2, 0);
|
|
assertStyle(element, 'width', '1000px');
|
|
assertStyle(element, 'height', '123px');
|
|
assertStyle(element, 'color', 'red');
|
|
|
|
comp.height = null;
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
// height gets applied twice and all other
|
|
// values get applied
|
|
assertStyleCounters(4, 0);
|
|
assertStyle(element, 'width', '1000px');
|
|
assertStyle(element, 'height', '1000px');
|
|
assertStyle(element, 'color', 'red');
|
|
|
|
comp.map = {color: 'blue', width: '2000px', opacity: '0.5'};
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
assertStyleCounters(5, 0);
|
|
assertStyle(element, 'width', '2000px');
|
|
assertStyle(element, 'height', '1000px');
|
|
assertStyle(element, 'color', 'blue');
|
|
assertStyle(element, 'opacity', '0.5');
|
|
|
|
comp.map = {color: 'blue', width: '2000px'};
|
|
ngDevModeResetPerfCounters();
|
|
fixture.detectChanges();
|
|
|
|
// all four are applied because the map was altered
|
|
assertStyleCounters(4, 1);
|
|
assertStyle(element, 'width', '2000px');
|
|
assertStyle(element, 'height', '1000px');
|
|
assertStyle(element, 'color', 'blue');
|
|
assertStyle(element, 'opacity', '');
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should sanitize style values before writing them', () => {
|
|
@Component({
|
|
template: `
|
|
<div [style.width]="widthExp"
|
|
[style.background-image]="bgImageExp"
|
|
[style]="styleMapExp"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
widthExp = '';
|
|
bgImageExp = '';
|
|
styleMapExp: any = {};
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
const node = getDebugNode(element) !;
|
|
const styles = node.styles !;
|
|
|
|
const lastSanitizedProps: any[] = [];
|
|
styles.overrideSanitizer((prop, value) => {
|
|
lastSanitizedProps.push(prop);
|
|
return value;
|
|
});
|
|
|
|
comp.bgImageExp = '123';
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'background-image': '123',
|
|
'width': null,
|
|
});
|
|
|
|
expect(lastSanitizedProps).toEqual(['background-image']);
|
|
lastSanitizedProps.length = 0;
|
|
|
|
comp.styleMapExp = {'clip-path': '456'};
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'background-image': '123',
|
|
'clip-path': '456',
|
|
'width': null,
|
|
});
|
|
|
|
expect(lastSanitizedProps).toEqual(['background-image', 'clip-path']);
|
|
lastSanitizedProps.length = 0;
|
|
|
|
comp.widthExp = '789px';
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'background-image': '123',
|
|
'clip-path': '456',
|
|
'width': '789px',
|
|
});
|
|
|
|
expect(lastSanitizedProps).toEqual(['background-image', 'clip-path']);
|
|
lastSanitizedProps.length = 0;
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should apply a unit to a style before writing it', () => {
|
|
@Component({
|
|
template: `
|
|
<div [style.width.px]="widthExp"
|
|
[style.height.em]="heightExp"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
widthExp: string|number|null = '';
|
|
heightExp: string|number|null = '';
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
const node = getDebugNode(element) !;
|
|
const styles = node.styles !;
|
|
|
|
comp.widthExp = '200';
|
|
comp.heightExp = 10;
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'width': '200px',
|
|
'height': '10em',
|
|
});
|
|
|
|
comp.widthExp = 0;
|
|
comp.heightExp = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(styles.values).toEqual({
|
|
'width': '0px',
|
|
'height': null,
|
|
});
|
|
});
|
|
|
|
it('should be able to bind a SafeValue to clip-path', () => {
|
|
@Component({template: '<div [style.clip-path]="path"></div>'})
|
|
class Cmp {
|
|
path !: SafeStyle;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const sanitizer: DomSanitizer = TestBed.inject(DomSanitizer);
|
|
|
|
fixture.componentInstance.path = sanitizer.bypassSecurityTrustStyle('url("#test")');
|
|
fixture.detectChanges();
|
|
|
|
const html = fixture.nativeElement.innerHTML;
|
|
|
|
// Note that check the raw HTML, because (at the time of writing) the Node-based renderer
|
|
// that we use to run tests doesn't support `clip-path` in `CSSStyleDeclaration`.
|
|
expect(html).toMatch(/style=["|']clip-path:\s*url\(.*#test.*\)/);
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should evaluate follow-up [style] maps even if a former map is null', () => {
|
|
@Directive({selector: '[dir-with-styling]'})
|
|
class DirWithStyleMap {
|
|
@HostBinding('style') public styleMap: any = {color: 'red'};
|
|
}
|
|
|
|
@Directive({selector: '[dir-with-styling-part2]'})
|
|
class DirWithStyleMapPart2 {
|
|
@HostBinding('style') public styleMap: any = {width: '200px'};
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<div #div
|
|
[style]="map"
|
|
dir-with-styling
|
|
dir-with-styling-part2></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
map: any = null;
|
|
|
|
@ViewChild('div', {read: DirWithStyleMap, static: true})
|
|
dir1 !: DirWithStyleMap;
|
|
|
|
@ViewChild('div', {read: DirWithStyleMapPart2, static: true})
|
|
dir2 !: DirWithStyleMapPart2;
|
|
}
|
|
|
|
TestBed.configureTestingModule(
|
|
{declarations: [Cmp, DirWithStyleMap, DirWithStyleMapPart2]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
const node = getDebugNode(element) !;
|
|
const styles = node.styles !;
|
|
|
|
const values = styles.values;
|
|
const props = Object.keys(values).sort();
|
|
expect(props).toEqual(['color', 'width']);
|
|
|
|
expect(values['width']).toEqual('200px');
|
|
expect(values['color']).toEqual('red');
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should evaluate initial style/class values on a list of elements that changes', () => {
|
|
@Component({
|
|
template: `
|
|
<div *ngFor="let item of items"
|
|
class="initial-class item-{{ item }}">
|
|
{{ item }}
|
|
</div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
items = [1, 2, 3];
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
fixture.detectChanges();
|
|
|
|
function getItemElements(): HTMLElement[] {
|
|
return [].slice.call(fixture.nativeElement.querySelectorAll('div'));
|
|
}
|
|
|
|
function getItemClasses(): string[] {
|
|
return getItemElements().map(e => e.className).sort().join(' ').split(' ');
|
|
}
|
|
|
|
expect(getItemElements().length).toEqual(3);
|
|
expect(getItemClasses()).toEqual([
|
|
'initial-class',
|
|
'item-1',
|
|
'initial-class',
|
|
'item-2',
|
|
'initial-class',
|
|
'item-3',
|
|
]);
|
|
|
|
comp.items = [2, 4, 6, 8];
|
|
fixture.detectChanges();
|
|
|
|
expect(getItemElements().length).toEqual(4);
|
|
expect(getItemClasses()).toEqual([
|
|
'initial-class',
|
|
'item-2',
|
|
'initial-class',
|
|
'item-4',
|
|
'initial-class',
|
|
'item-6',
|
|
'initial-class',
|
|
'item-8',
|
|
]);
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should create and update multiple class bindings across multiple elements in a template',
|
|
() => {
|
|
@Component({
|
|
template: `
|
|
<header class="header">header</header>
|
|
<div *ngFor="let item of items" class="item item-{{ item }}">
|
|
{{ item }}
|
|
</div>
|
|
<footer class="footer">footer</footer>
|
|
`
|
|
})
|
|
class Cmp {
|
|
items = [1, 2, 3];
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
fixture.detectChanges();
|
|
|
|
function getItemElements(): HTMLElement[] {
|
|
return [].slice.call(fixture.nativeElement.querySelectorAll('div'));
|
|
}
|
|
|
|
function getItemClasses(): string[] {
|
|
return getItemElements().map(e => e.className).sort().join(' ').split(' ');
|
|
}
|
|
|
|
const header = fixture.nativeElement.querySelector('header');
|
|
expect(header.classList.contains('header'));
|
|
|
|
const footer = fixture.nativeElement.querySelector('footer');
|
|
expect(footer.classList.contains('footer'));
|
|
|
|
expect(getItemElements().length).toEqual(3);
|
|
expect(getItemClasses()).toEqual([
|
|
'item',
|
|
'item-1',
|
|
'item',
|
|
'item-2',
|
|
'item',
|
|
'item-3',
|
|
]);
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should understand multiple directives which contain initial classes', () => {
|
|
@Directive({selector: 'dir-one'})
|
|
class DirOne {
|
|
@HostBinding('class') public className = 'dir-one';
|
|
}
|
|
|
|
@Directive({selector: 'dir-two'})
|
|
class DirTwo {
|
|
@HostBinding('class') public className = 'dir-two';
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<dir-one></dir-one>
|
|
<div class="initial"></div>
|
|
<dir-two></dir-two>
|
|
`
|
|
})
|
|
class Cmp {
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirOne, DirTwo]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const dirOne = fixture.nativeElement.querySelector('dir-one');
|
|
const div = fixture.nativeElement.querySelector('div');
|
|
const dirTwo = fixture.nativeElement.querySelector('dir-two');
|
|
|
|
expect(dirOne.classList.contains('dir-one')).toBeTruthy();
|
|
expect(dirTwo.classList.contains('dir-two')).toBeTruthy();
|
|
expect(div.classList.contains('initial')).toBeTruthy();
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should evaluate styling across the template directives when there are multiple elements/sources of styling',
|
|
() => {
|
|
@Directive({selector: '[one]'})
|
|
class DirOne {
|
|
@HostBinding('class') public className = 'dir-one';
|
|
}
|
|
|
|
@Directive({selector: '[two]'})
|
|
class DirTwo {
|
|
@HostBinding('class') public className = 'dir-two';
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<div class="a" [style.width.px]="w" one></div>
|
|
<div class="b" [style.height.px]="h" one two></div>
|
|
<div class="c" [style.color]="c" two></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
w = 100;
|
|
h = 200;
|
|
c = 'red';
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirOne, DirTwo]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const divA = fixture.nativeElement.querySelector('.a');
|
|
const divB = fixture.nativeElement.querySelector('.b');
|
|
const divC = fixture.nativeElement.querySelector('.c');
|
|
|
|
expect(divA.style.width).toEqual('100px');
|
|
expect(divB.style.height).toEqual('200px');
|
|
expect(divC.style.color).toEqual('red');
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should evaluate styling across the template and directives within embedded views',
|
|
() => {
|
|
@Directive({selector: '[some-dir-with-styling]'})
|
|
class SomeDirWithStyling {
|
|
@HostBinding('style')
|
|
public styles = {
|
|
width: '200px',
|
|
height: '500px',
|
|
};
|
|
}
|
|
|
|
@Component({
|
|
template: `
|
|
<div
|
|
class="item"
|
|
*ngFor="let item of items; let i = index"
|
|
[style.color]="c"
|
|
[style.height.px]="h * i"
|
|
some-dir-with-styling>
|
|
{{ item }}
|
|
</div>
|
|
<section [style.width.px]="w"></section>
|
|
<p [style.height.px]="h"></p>
|
|
`
|
|
})
|
|
class Cmp {
|
|
items: any[] = [];
|
|
c = 'red';
|
|
w = 100;
|
|
h = 100;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, SomeDirWithStyling]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
comp.items = [1, 2, 3, 4];
|
|
fixture.detectChanges();
|
|
|
|
const items = fixture.nativeElement.querySelectorAll('.item');
|
|
expect(items.length).toEqual(4);
|
|
const [a, b, c, d] = items;
|
|
expect(a.style.height).toEqual('0px');
|
|
expect(b.style.height).toEqual('100px');
|
|
expect(c.style.height).toEqual('200px');
|
|
expect(d.style.height).toEqual('300px');
|
|
|
|
const section = fixture.nativeElement.querySelector('section');
|
|
const p = fixture.nativeElement.querySelector('p');
|
|
|
|
expect(section.style['width']).toEqual('100px');
|
|
expect(p.style['height']).toEqual('100px');
|
|
});
|
|
|
|
onlyInIvy('only ivy has style/class bindings debugging support')
|
|
.it('should flush bindings even if any styling hasn\'t changed in a previous directive',
|
|
() => {
|
|
@Directive({selector: '[one]'})
|
|
class DirOne {
|
|
@HostBinding('style.width') w = '100px';
|
|
@HostBinding('style.opacity') o = '0.5';
|
|
}
|
|
|
|
@Directive({selector: '[two]'})
|
|
class DirTwo {
|
|
@HostBinding('style.height') h = '200px';
|
|
@HostBinding('style.color') c = 'red';
|
|
}
|
|
|
|
@Component({template: '<div #target one two></div>'})
|
|
class Cmp {
|
|
@ViewChild('target', {read: DirOne, static: true}) one !: DirOne;
|
|
@ViewChild('target', {read: DirTwo, static: true}) two !: DirTwo;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirOne, DirTwo]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
fixture.detectChanges();
|
|
|
|
const div = fixture.nativeElement.querySelector('div');
|
|
expect(div.style.opacity).toEqual('0.5');
|
|
expect(div.style.color).toEqual('red');
|
|
expect(div.style.width).toEqual('100px');
|
|
expect(div.style.height).toEqual('200px');
|
|
|
|
comp.two.h = '300px';
|
|
fixture.detectChanges();
|
|
expect(div.style.opacity).toEqual('0.5');
|
|
expect(div.style.color).toEqual('red');
|
|
expect(div.style.width).toEqual('100px');
|
|
expect(div.style.height).toEqual('300px');
|
|
});
|
|
|
|
it('should work with NO_CHANGE values if they are applied to bindings ', () => {
|
|
@Component({
|
|
template: `
|
|
<div
|
|
[style.width]="w"
|
|
style.height="{{ h }}"
|
|
[style.opacity]="o"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
w: any = null;
|
|
h: any = null;
|
|
o: any = null;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
|
|
comp.w = '100px';
|
|
comp.h = '200px';
|
|
comp.o = '0.5';
|
|
fixture.detectChanges();
|
|
|
|
const div = fixture.nativeElement.querySelector('div');
|
|
expect(div.style.width).toEqual('100px');
|
|
expect(div.style.height).toEqual('200px');
|
|
expect(div.style.opacity).toEqual('0.5');
|
|
|
|
comp.w = '500px';
|
|
comp.o = '1';
|
|
fixture.detectChanges();
|
|
|
|
expect(div.style.width).toEqual('500px');
|
|
expect(div.style.height).toEqual('200px');
|
|
expect(div.style.opacity).toEqual('1');
|
|
});
|
|
|
|
it('should allow [ngStyle] and [ngClass] to be used together', () => {
|
|
@Component({
|
|
template: `
|
|
<div [ngClass]="c" [ngStyle]="s"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
c: any = 'foo bar';
|
|
s: any = {width: '200px'};
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const div = fixture.nativeElement.querySelector('div');
|
|
expect(div.style.width).toEqual('200px');
|
|
expect(div.classList.contains('foo')).toBeTruthy();
|
|
expect(div.classList.contains('bar')).toBeTruthy();
|
|
});
|
|
|
|
it('should allow to reset style property value defined using ngStyle', () => {
|
|
@Component({
|
|
template: `
|
|
<div [ngStyle]="s"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
s: any = {opacity: '1'};
|
|
|
|
clearStyle(): void { this.s = null; }
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
const comp = fixture.componentInstance;
|
|
fixture.detectChanges();
|
|
|
|
const div = fixture.nativeElement.querySelector('div');
|
|
expect(div.style.opacity).toEqual('1');
|
|
|
|
comp.clearStyle();
|
|
fixture.detectChanges();
|
|
|
|
expect(div.style.opacity).toEqual('');
|
|
});
|
|
|
|
it('should allow detectChanges to be run in a property change that causes additional styling to be rendered',
|
|
() => {
|
|
@Component({
|
|
selector: 'child',
|
|
template: `
|
|
<div [class.ready-child]="readyTpl"></div>
|
|
`,
|
|
})
|
|
class ChildCmp {
|
|
readyTpl = false;
|
|
|
|
@HostBinding('class.ready-host')
|
|
readyHost = false;
|
|
}
|
|
|
|
@Component({
|
|
selector: 'parent',
|
|
template: `
|
|
<div>
|
|
<div #template></div>
|
|
<p>{{prop}}</p>
|
|
</div>
|
|
`,
|
|
host: {
|
|
'[style.color]': 'color',
|
|
},
|
|
})
|
|
class ParentCmp {
|
|
private _prop = '';
|
|
|
|
@ViewChild('template', {read: ViewContainerRef})
|
|
vcr: ViewContainerRef = null !;
|
|
|
|
private child: ComponentRef<ChildCmp> = null !;
|
|
|
|
@Input()
|
|
set prop(value: string) {
|
|
this._prop = value;
|
|
if (this.child && value === 'go') {
|
|
this.child.instance.readyHost = true;
|
|
this.child.instance.readyTpl = true;
|
|
this.child.changeDetectorRef.detectChanges();
|
|
}
|
|
}
|
|
|
|
get prop() { return this._prop; }
|
|
|
|
ngAfterViewInit() {
|
|
const factory = this.componentFactoryResolver.resolveComponentFactory(ChildCmp);
|
|
this.child = this.vcr.createComponent(factory);
|
|
}
|
|
|
|
constructor(private componentFactoryResolver: ComponentFactoryResolver) {}
|
|
}
|
|
|
|
@Component({
|
|
template: `<parent [prop]="prop"></parent>`,
|
|
})
|
|
class App {
|
|
prop = 'a';
|
|
}
|
|
|
|
@NgModule({
|
|
entryComponents: [ChildCmp],
|
|
declarations: [ChildCmp],
|
|
})
|
|
class ChildCmpModule {
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [App, ParentCmp], imports: [ChildCmpModule]});
|
|
const fixture = TestBed.createComponent(App);
|
|
fixture.detectChanges(false);
|
|
|
|
let readyHost = fixture.nativeElement.querySelector('.ready-host');
|
|
let readyChild = fixture.nativeElement.querySelector('.ready-child');
|
|
|
|
expect(readyHost).toBeFalsy();
|
|
expect(readyChild).toBeFalsy();
|
|
|
|
fixture.componentInstance.prop = 'go';
|
|
fixture.detectChanges(false);
|
|
|
|
readyHost = fixture.nativeElement.querySelector('.ready-host');
|
|
readyChild = fixture.nativeElement.querySelector('.ready-child');
|
|
expect(readyHost).toBeTruthy();
|
|
expect(readyChild).toBeTruthy();
|
|
});
|
|
|
|
it('should allow detectChanges to be run in a hook that causes additional styling to be rendered',
|
|
() => {
|
|
@Component({
|
|
selector: 'child',
|
|
template: `
|
|
<div [class.ready-child]="readyTpl"></div>
|
|
`,
|
|
})
|
|
class ChildCmp {
|
|
readyTpl = false;
|
|
|
|
@HostBinding('class.ready-host')
|
|
readyHost = false;
|
|
}
|
|
|
|
@Component({
|
|
selector: 'parent',
|
|
template: `
|
|
<div>
|
|
<div #template></div>
|
|
<p>{{prop}}</p>
|
|
</div>
|
|
`,
|
|
})
|
|
class ParentCmp {
|
|
updateChild = false;
|
|
|
|
@ViewChild('template', {read: ViewContainerRef})
|
|
vcr: ViewContainerRef = null !;
|
|
|
|
private child: ComponentRef<ChildCmp> = null !;
|
|
|
|
ngDoCheck() {
|
|
if (this.updateChild) {
|
|
this.child.instance.readyHost = true;
|
|
this.child.instance.readyTpl = true;
|
|
this.child.changeDetectorRef.detectChanges();
|
|
}
|
|
}
|
|
|
|
ngAfterViewInit() {
|
|
const factory = this.componentFactoryResolver.resolveComponentFactory(ChildCmp);
|
|
this.child = this.vcr.createComponent(factory);
|
|
}
|
|
|
|
constructor(private componentFactoryResolver: ComponentFactoryResolver) {}
|
|
}
|
|
|
|
@Component({
|
|
template: `<parent #parent></parent>`,
|
|
})
|
|
class App {
|
|
@ViewChild('parent', {static: true}) public parent: ParentCmp|null = null;
|
|
}
|
|
|
|
@NgModule({
|
|
entryComponents: [ChildCmp],
|
|
declarations: [ChildCmp],
|
|
})
|
|
class ChildCmpModule {
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [App, ParentCmp], imports: [ChildCmpModule]});
|
|
const fixture = TestBed.createComponent(App);
|
|
fixture.detectChanges(false);
|
|
|
|
let readyHost = fixture.nativeElement.querySelector('.ready-host');
|
|
let readyChild = fixture.nativeElement.querySelector('.ready-child');
|
|
expect(readyHost).toBeFalsy();
|
|
expect(readyChild).toBeFalsy();
|
|
|
|
const parent = fixture.componentInstance.parent !;
|
|
parent.updateChild = true;
|
|
fixture.detectChanges(false);
|
|
|
|
readyHost = fixture.nativeElement.querySelector('.ready-host');
|
|
readyChild = fixture.nativeElement.querySelector('.ready-child');
|
|
expect(readyHost).toBeTruthy();
|
|
expect(readyChild).toBeTruthy();
|
|
});
|
|
|
|
onlyInIvy('only ivy allows for multiple styles/classes to be balanced across directives')
|
|
.it('should allow various duplicate properties to be defined in various styling maps within the template and directive styling bindings',
|
|
() => {
|
|
@Component({
|
|
template: `
|
|
<div [style.width]="w"
|
|
[style.height]="h"
|
|
[style]="s1"
|
|
[dir-with-styling]="s2">
|
|
`
|
|
})
|
|
class Cmp {
|
|
h = '100px';
|
|
w = '100px';
|
|
s1: any = {border: '10px solid black', width: '200px'};
|
|
s2: any = {border: '10px solid red', width: '300px'};
|
|
}
|
|
|
|
@Directive({selector: '[dir-with-styling]'})
|
|
class DirectiveExpectingStyling {
|
|
@Input('dir-with-styling') @HostBinding('style') public styles: any = null;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp, DirectiveExpectingStyling]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
fixture.detectChanges();
|
|
|
|
const element = fixture.nativeElement.querySelector('div');
|
|
expect(element.style.border).toEqual('10px solid black');
|
|
expect(element.style.width).toEqual('100px');
|
|
expect(element.style.height).toEqual('100px');
|
|
|
|
fixture.componentInstance.s1 = null;
|
|
fixture.detectChanges();
|
|
|
|
expect(element.style.border).toEqual('10px solid red');
|
|
expect(element.style.width).toEqual('100px');
|
|
expect(element.style.height).toEqual('100px');
|
|
});
|
|
|
|
it('should retrieve styles set via Renderer2', () => {
|
|
let dirInstance: any;
|
|
@Directive({
|
|
selector: '[dir]',
|
|
})
|
|
class Dir {
|
|
constructor(public elementRef: ElementRef, public renderer: Renderer2) { dirInstance = this; }
|
|
|
|
setStyles() {
|
|
this.renderer.setStyle(
|
|
this.elementRef.nativeElement, 'transform', 'translate3d(0px, 0px, 0px)');
|
|
this.renderer.addClass(this.elementRef.nativeElement, 'my-class');
|
|
}
|
|
}
|
|
|
|
@Component({template: `<div dir></div>`})
|
|
class App {
|
|
}
|
|
|
|
TestBed.configureTestingModule({
|
|
declarations: [App, Dir],
|
|
});
|
|
const fixture = TestBed.createComponent(App);
|
|
fixture.detectChanges();
|
|
dirInstance.setStyles();
|
|
|
|
const div = fixture.debugElement.children[0];
|
|
expect(div.styles.transform).toMatch(/translate3d\(0px\s*,\s*0px\s*,\s*0px\)/);
|
|
expect(div.classes['my-class']).toBe(true);
|
|
|
|
div.classes['other-class'] = true;
|
|
div.styles['width'] = '200px';
|
|
expect(div.styles.width).toEqual('200px');
|
|
expect(div.classes['other-class']).toBe(true);
|
|
|
|
if (ivyEnabled) {
|
|
expect(div.nativeElement.classList.contains('other-class')).toBeTruthy();
|
|
expect(div.nativeElement.style['width']).toEqual('200px');
|
|
}
|
|
});
|
|
|
|
it('should not set classes when falsy value is passed while a sanitizer is present', () => {
|
|
@Component({
|
|
// Note that we use `background` here because it needs to be sanitized.
|
|
template: `
|
|
<span class="container" [ngClass]="{disabled: isDisabled}"></span>
|
|
<div [style.background]="background"></div>
|
|
`,
|
|
})
|
|
|
|
class AppComponent {
|
|
isDisabled = false;
|
|
background = 'orange';
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [AppComponent]});
|
|
const fixture = TestBed.createComponent(AppComponent);
|
|
fixture.detectChanges();
|
|
|
|
const span = fixture.nativeElement.querySelector('span');
|
|
expect(span.classList).not.toContain('disabled');
|
|
|
|
// The issue we're testing for happens after the second change detection.
|
|
fixture.detectChanges();
|
|
expect(span.classList).not.toContain('disabled');
|
|
});
|
|
|
|
it('should not set classes when falsy value is passed while a sanitizer from host bindings is present',
|
|
() => {
|
|
@Directive({selector: '[blockStyles]'})
|
|
class StylesDirective {
|
|
@HostBinding('style.border')
|
|
border = '1px solid red';
|
|
|
|
@HostBinding('style.background')
|
|
background = 'white';
|
|
}
|
|
|
|
@Component({
|
|
template: `<div class="container" [ngClass]="{disabled: isDisabled}" blockStyles></div>`,
|
|
})
|
|
class AppComponent {
|
|
isDisabled = false;
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [AppComponent, StylesDirective]});
|
|
const fixture = TestBed.createComponent(AppComponent);
|
|
fixture.detectChanges();
|
|
|
|
const div = fixture.nativeElement.querySelector('div');
|
|
expect(div.classList.contains('disabled')).toBe(false);
|
|
|
|
// The issue we're testing for happens after the second change detection.
|
|
fixture.detectChanges();
|
|
expect(div.classList.contains('disabled')).toBe(false);
|
|
});
|
|
|
|
it('should throw an error if a prop-based style/class binding value is changed during checkNoChanges',
|
|
() => {
|
|
@Component({
|
|
template: `
|
|
<div [style.color]="color" [class.foo]="fooClass"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
color = 'red';
|
|
fooClass = true;
|
|
|
|
ngAfterViewInit() {
|
|
this.color = 'blue';
|
|
this.fooClass = false;
|
|
}
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
|
|
expect(() => {
|
|
fixture.detectChanges();
|
|
}).toThrowError(/ExpressionChangedAfterItHasBeenCheckedError/);
|
|
});
|
|
|
|
onlyInIvy('only ivy allows for map-based style AND class bindings')
|
|
.it('should throw an error if a map-based style/class binding value is changed during checkNoChanges',
|
|
() => {
|
|
@Component({
|
|
template: `
|
|
<div [style]="style" [class]="klass"></div>
|
|
`
|
|
})
|
|
class Cmp {
|
|
style: any = {width: '100px'};
|
|
klass: any = {foo: true, bar: false};
|
|
|
|
ngAfterViewInit() {
|
|
this.style = {height: '200px'};
|
|
this.klass = {foo: false};
|
|
}
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [Cmp]});
|
|
const fixture = TestBed.createComponent(Cmp);
|
|
|
|
expect(() => {
|
|
fixture.detectChanges();
|
|
}).toThrowError(/ExpressionChangedAfterItHasBeenCheckedError/);
|
|
});
|
|
|
|
it('should properly merge class interpolation with class-based directives', () => {
|
|
@Component(
|
|
{template: `<div class="zero {{one}}" [class.two]="true" [ngClass]="'three'"></div>`})
|
|
class MyComp {
|
|
one = 'one';
|
|
}
|
|
|
|
const fixture =
|
|
TestBed.configureTestingModule({declarations: [MyComp]}).createComponent(MyComp);
|
|
fixture.detectChanges();
|
|
|
|
expect(fixture.debugElement.nativeElement.innerHTML).toContain('zero');
|
|
expect(fixture.debugElement.nativeElement.innerHTML).toContain('one');
|
|
expect(fixture.debugElement.nativeElement.innerHTML).toContain('two');
|
|
expect(fixture.debugElement.nativeElement.innerHTML).toContain('three');
|
|
});
|
|
|
|
it('should allow to reset style property value defined using [style.prop.px] binding', () => {
|
|
@Component({
|
|
template: '<div [style.left.px]="left"></div>',
|
|
})
|
|
class MyComp {
|
|
left = '';
|
|
}
|
|
|
|
TestBed.configureTestingModule({declarations: [MyComp]});
|
|
const fixture = TestBed.createComponent(MyComp);
|
|
fixture.detectChanges();
|
|
|
|
const checks = [
|
|
['15', '15px'],
|
|
[undefined, ''],
|
|
[null, ''],
|
|
['', ''],
|
|
['0', '0px'],
|
|
];
|
|
const div = fixture.nativeElement.querySelector('div');
|
|
checks.forEach((check: any[]) => {
|
|
const [fieldValue, expectedValue] = check;
|
|
fixture.componentInstance.left = fieldValue;
|
|
fixture.detectChanges();
|
|
expect(div.style.left).toBe(expectedValue);
|
|
});
|
|
});
|
|
|
|
onlyInIvy('only ivy treats [class] in concert with other class bindings')
|
|
.it('should retain classes added externally', () => {
|
|
@Component({template: `<div [class]="exp"></div>`})
|
|
class MyComp {
|
|
exp = '';
|
|
}
|
|
|
|
const fixture =
|
|
TestBed.configureTestingModule({declarations: [MyComp]}).createComponent(MyComp);
|
|
fixture.detectChanges();
|
|
|
|
const div = fixture.nativeElement.querySelector('div') !;
|
|
div.className += ' abc';
|
|
expect(splitSortJoin(div.className)).toEqual('abc');
|
|
|
|
fixture.componentInstance.exp = '1 2 3';
|
|
fixture.detectChanges();
|
|
|
|
expect(splitSortJoin(div.className)).toEqual('1 2 3 abc');
|
|
|
|
fixture.componentInstance.exp = '4 5 6 7';
|
|
fixture.detectChanges();
|
|
|
|
expect(splitSortJoin(div.className)).toEqual('4 5 6 7 abc');
|
|
|
|
function splitSortJoin(s: string) { return s.split(/\s+/).sort().join(' ').trim(); }
|
|
});
|
|
|
|
describe('ExpressionChangedAfterItHasBeenCheckedError', () => {
|
|
it('should not throw when bound to SafeValue', () => {
|
|
@Component({template: `<div [style.background-image]="iconSafe"></div>`})
|
|
class MyComp {
|
|
icon = 'https://i.imgur.com/4AiXzf8.jpg';
|
|
get iconSafe() { return this.sanitizer.bypassSecurityTrustStyle(`url("${this.icon}")`); }
|
|
|
|
constructor(private sanitizer: DomSanitizer) {}
|
|
}
|
|
|
|
const fixture =
|
|
TestBed.configureTestingModule({declarations: [MyComp]}).createComponent(MyComp);
|
|
fixture.detectChanges(true /* Verify that check no changes does not cause an exception */);
|
|
const div: HTMLElement = fixture.nativeElement.querySelector('div');
|
|
expect(div.style.getPropertyValue('background-image'))
|
|
.toEqual('url("https://i.imgur.com/4AiXzf8.jpg")');
|
|
});
|
|
});
|
|
});
|
|
|
|
function assertStyleCounters(countForSet: number, countForRemove: number) {
|
|
expect(ngDevMode !.rendererSetStyle).toEqual(countForSet);
|
|
expect(ngDevMode !.rendererRemoveStyle).toEqual(countForRemove);
|
|
}
|
|
|
|
function assertStyle(element: HTMLElement, prop: string, value: any) {
|
|
expect((element.style as any)[prop]).toEqual(value);
|
|
}
|