518 lines
16 KiB
TypeScript
518 lines
16 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 {EventEmitter} from '@angular/core';
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import {defineComponent, defineDirective} from '../../src/render3/index';
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import {NO_CHANGE, bind, container, containerRefreshEnd, containerRefreshStart, elementEnd, elementProperty, elementStart, embeddedViewEnd, embeddedViewStart, interpolation1, listener, load, text, textBinding} from '../../src/render3/instructions';
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import {renderToHtml} from './render_util';
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describe('elementProperty', () => {
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it('should support bindings to properties', () => {
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'span');
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elementEnd();
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}
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elementProperty(0, 'id', bind(ctx));
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}
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expect(renderToHtml(Template, 'testId')).toEqual('<span id="testId"></span>');
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expect(renderToHtml(Template, 'otherId')).toEqual('<span id="otherId"></span>');
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});
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it('should support creation time bindings to properties', () => {
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function expensive(ctx: string): any {
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if (ctx === 'cheapId') {
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return ctx;
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} else {
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throw 'Too expensive!';
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}
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}
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function Template(ctx: string, cm: boolean) {
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if (cm) {
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elementStart(0, 'span');
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elementEnd();
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}
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elementProperty(0, 'id', cm ? expensive(ctx) : NO_CHANGE);
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}
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expect(renderToHtml(Template, 'cheapId')).toEqual('<span id="cheapId"></span>');
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expect(renderToHtml(Template, 'expensiveId')).toEqual('<span id="cheapId"></span>');
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});
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it('should support interpolation for properties', () => {
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'span');
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elementEnd();
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}
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elementProperty(0, 'id', interpolation1('_', ctx, '_'));
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}
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expect(renderToHtml(Template, 'testId')).toEqual('<span id="_testId_"></span>');
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expect(renderToHtml(Template, 'otherId')).toEqual('<span id="_otherId_"></span>');
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});
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describe('input properties', () => {
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let button: MyButton;
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let otherDir: OtherDir;
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class MyButton {
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disabled: boolean;
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static ngDirectiveDef = defineDirective(
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{type: MyButton, factory: () => button = new MyButton(), inputs: {disabled: 'disabled'}});
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}
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class OtherDir {
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id: boolean;
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clickStream = new EventEmitter();
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static ngDirectiveDef = defineDirective({
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type: OtherDir,
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factory: () => otherDir = new OtherDir(),
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inputs: {id: 'id'},
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outputs: {clickStream: 'click'}
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});
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}
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it('should check input properties before setting (directives)', () => {
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/** <button myButton [id]="id" [disabled]="isDisabled">Click me</button> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'button', null, [MyButton, OtherDir]);
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{ text(3, 'Click me'); }
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elementEnd();
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}
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elementProperty(0, 'disabled', bind(ctx.isDisabled));
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elementProperty(0, 'id', bind(ctx.id));
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}
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const ctx: any = {isDisabled: true, id: 0};
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expect(renderToHtml(Template, ctx)).toEqual(`<button>Click me</button>`);
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expect(button !.disabled).toEqual(true);
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expect(otherDir !.id).toEqual(0);
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ctx.isDisabled = false;
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ctx.id = 1;
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expect(renderToHtml(Template, ctx)).toEqual(`<button>Click me</button>`);
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expect(button !.disabled).toEqual(false);
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expect(otherDir !.id).toEqual(1);
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});
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it('should support mixed element properties and input properties', () => {
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/** <button myButton [id]="id" [disabled]="isDisabled">Click me</button> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'button', null, [MyButton]);
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{ text(2, 'Click me'); }
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elementEnd();
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}
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elementProperty(0, 'disabled', bind(ctx.isDisabled));
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elementProperty(0, 'id', bind(ctx.id));
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}
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const ctx: any = {isDisabled: true, id: 0};
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expect(renderToHtml(Template, ctx)).toEqual(`<button id="0">Click me</button>`);
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expect(button !.disabled).toEqual(true);
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ctx.isDisabled = false;
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ctx.id = 1;
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expect(renderToHtml(Template, ctx)).toEqual(`<button id="1">Click me</button>`);
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expect(button !.disabled).toEqual(false);
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});
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it('should check that property is not an input property before setting (component)', () => {
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let comp: Comp;
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class Comp {
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id: number;
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static ngComponentDef = defineComponent({
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type: Comp,
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tag: 'comp',
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template: function(ctx: any, cm: boolean) {},
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factory: () => comp = new Comp(),
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inputs: {id: 'id'}
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});
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}
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/** <comp [id]="id"></comp> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, Comp);
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elementEnd();
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}
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elementProperty(0, 'id', bind(ctx.id));
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Comp.ngComponentDef.h(1, 0);
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}
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expect(renderToHtml(Template, {id: 1})).toEqual(`<comp></comp>`);
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expect(comp !.id).toEqual(1);
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expect(renderToHtml(Template, {id: 2})).toEqual(`<comp></comp>`);
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expect(comp !.id).toEqual(2);
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});
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it('should support two input properties with the same name', () => {
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let otherDisabledDir: OtherDisabledDir;
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class OtherDisabledDir {
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disabled: boolean;
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static ngDirectiveDef = defineDirective({
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type: OtherDisabledDir,
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factory: () => otherDisabledDir = new OtherDisabledDir(),
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inputs: {disabled: 'disabled'}
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});
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}
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/** <button myButton otherDisabledDir [disabled]="isDisabled">Click me</button> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'button', null, [MyButton, OtherDisabledDir]);
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{ text(3, 'Click me'); }
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elementEnd();
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}
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elementProperty(0, 'disabled', bind(ctx.isDisabled));
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}
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const ctx: any = {isDisabled: true};
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expect(renderToHtml(Template, ctx)).toEqual(`<button>Click me</button>`);
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expect(button !.disabled).toEqual(true);
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expect(otherDisabledDir !.disabled).toEqual(true);
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ctx.isDisabled = false;
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expect(renderToHtml(Template, ctx)).toEqual(`<button>Click me</button>`);
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expect(button !.disabled).toEqual(false);
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expect(otherDisabledDir !.disabled).toEqual(false);
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});
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it('should set input property if there is an output first', () => {
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/** <button otherDir [id]="id" (click)="onClick()">Click me</button> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'button', null, [OtherDir]);
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{
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listener('click', ctx.onClick.bind(ctx));
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text(2, 'Click me');
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}
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elementEnd();
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}
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elementProperty(0, 'id', bind(ctx.id));
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}
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let counter = 0;
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const ctx: any = {id: 1, onClick: () => counter++};
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expect(renderToHtml(Template, ctx)).toEqual(`<button>Click me</button>`);
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expect(otherDir !.id).toEqual(1);
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otherDir !.clickStream.next();
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expect(counter).toEqual(1);
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ctx.id = 2;
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renderToHtml(Template, ctx);
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expect(otherDir !.id).toEqual(2);
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});
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it('should support unrelated element properties at same index in if-else block', () => {
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let idDir: IdDir;
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class IdDir {
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idNumber: number;
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static ngDirectiveDef = defineDirective(
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{type: IdDir, factory: () => idDir = new IdDir(), inputs: {idNumber: 'id'}});
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}
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/**
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* <button idDir [id]="id1">Click me</button> // inputs: {'id': [0, 'idNumber']}
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* % if (condition) {
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* <button [id]="id2">Click me too</button> // inputs: null
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* % } else {
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* <button otherDir [id]="id3">Click me too</button> // inputs: {'id': [0, 'id']}
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* % }
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'button', null, [IdDir]);
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{ text(2, 'Click me'); }
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elementEnd();
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container(3);
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}
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elementProperty(0, 'id', bind(ctx.id1));
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containerRefreshStart(3);
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{
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if (ctx.condition) {
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if (embeddedViewStart(0)) {
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elementStart(0, 'button');
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{ text(1, 'Click me too'); }
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elementEnd();
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}
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elementProperty(0, 'id', bind(ctx.id2));
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embeddedViewEnd();
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} else {
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if (embeddedViewStart(1)) {
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elementStart(0, 'button', null, [OtherDir]);
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{ text(2, 'Click me too'); }
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elementEnd();
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}
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elementProperty(0, 'id', bind(ctx.id3));
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embeddedViewEnd();
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}
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}
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containerRefreshEnd();
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}
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expect(renderToHtml(Template, {condition: true, id1: 'one', id2: 'two', id3: 'three'}))
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.toEqual(`<button>Click me</button><button id="two">Click me too</button>`);
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expect(idDir !.idNumber).toEqual('one');
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expect(renderToHtml(Template, {condition: false, id1: 'four', id2: 'two', id3: 'three'}))
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.toEqual(`<button>Click me</button><button>Click me too</button>`);
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expect(idDir !.idNumber).toEqual('four');
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expect(otherDir !.id).toEqual('three');
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});
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});
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describe('attributes and input properties', () => {
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let myDir: MyDir;
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class MyDir {
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role: string;
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direction: string;
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changeStream = new EventEmitter();
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static ngDirectiveDef = defineDirective({
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type: MyDir,
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factory: () => myDir = new MyDir(),
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inputs: {role: 'role', direction: 'dir'},
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outputs: {changeStream: 'change'}
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});
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}
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let dirB: MyDirB;
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class MyDirB {
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roleB: string;
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static ngDirectiveDef = defineDirective(
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{type: MyDirB, factory: () => dirB = new MyDirB(), inputs: {roleB: 'role'}});
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}
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it('should set input property based on attribute if existing', () => {
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/** <div role="button" myDir></div> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', ['role', 'button'], [MyDir]);
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elementEnd();
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}
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}
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expect(renderToHtml(Template, {})).toEqual(`<div role="button"></div>`);
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expect(myDir !.role).toEqual('button');
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});
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it('should set input property and attribute if both defined', () => {
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/** <div role="button" [role]="role" myDir></div> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', ['role', 'button'], [MyDir]);
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elementEnd();
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}
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elementProperty(0, 'role', bind(ctx.role));
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}
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expect(renderToHtml(Template, {role: 'listbox'})).toEqual(`<div role="button"></div>`);
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expect(myDir !.role).toEqual('listbox');
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renderToHtml(Template, {role: 'button'});
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expect(myDir !.role).toEqual('button');
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});
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it('should set two directive input properties based on same attribute', () => {
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/** <div role="button" myDir myDirB></div> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', ['role', 'button'], [MyDir, MyDirB]);
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elementEnd();
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}
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}
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expect(renderToHtml(Template, {})).toEqual(`<div role="button"></div>`);
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expect(myDir !.role).toEqual('button');
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expect(dirB !.roleB).toEqual('button');
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});
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it('should process two attributes on same directive', () => {
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/** <div role="button" dir="rtl" myDir></div> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', ['role', 'button', 'dir', 'rtl'], [MyDir]);
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elementEnd();
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}
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}
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expect(renderToHtml(Template, {})).toEqual(`<div dir="rtl" role="button"></div>`);
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expect(myDir !.role).toEqual('button');
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expect(myDir !.direction).toEqual('rtl');
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});
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it('should process attributes and outputs properly together', () => {
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/** <div role="button" (change)="onChange()" myDir></div> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', ['role', 'button'], [MyDir]);
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{ listener('change', ctx.onChange.bind(ctx)); }
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elementEnd();
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}
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}
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let counter = 0;
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expect(renderToHtml(Template, {
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onChange: () => counter++
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})).toEqual(`<div role="button"></div>`);
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expect(myDir !.role).toEqual('button');
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myDir !.changeStream.next();
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expect(counter).toEqual(1);
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});
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it('should process attributes properly for directives with later indices', () => {
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/**
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* <div role="button" dir="rtl" myDir></div>
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* <div role="listbox" myDirB></div>
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', ['role', 'button', 'dir', 'rtl'], [MyDir]);
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elementEnd();
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elementStart(2, 'div', ['role', 'listbox'], [MyDirB]);
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elementEnd();
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}
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}
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expect(renderToHtml(Template, {}))
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.toEqual(`<div dir="rtl" role="button"></div><div role="listbox"></div>`);
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expect(myDir !.role).toEqual('button');
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expect(myDir !.direction).toEqual('rtl');
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expect(dirB !.roleB).toEqual('listbox');
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});
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it('should support attributes at same index inside an if-else block', () => {
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/**
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* <div role="listbox" myDir></div> // initialInputs: [['role', 'listbox']]
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*
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* % if (condition) {
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* <div role="button" myDirB></div> // initialInputs: [['role', 'button']]
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* % } else {
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* <div role="menu"></div> // initialInputs: [null]
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* % }
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', ['role', 'listbox'], [MyDir]);
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elementEnd();
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container(2);
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}
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containerRefreshStart(2);
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{
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if (ctx.condition) {
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if (embeddedViewStart(0)) {
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elementStart(0, 'div', ['role', 'button'], [MyDirB]);
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elementEnd();
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}
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embeddedViewEnd();
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} else {
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if (embeddedViewStart(1)) {
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elementStart(0, 'div', ['role', 'menu']);
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{}
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elementEnd();
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}
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embeddedViewEnd();
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}
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}
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containerRefreshEnd();
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}
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expect(renderToHtml(Template, {
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condition: true
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})).toEqual(`<div role="listbox"></div><div role="button"></div>`);
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expect(myDir !.role).toEqual('listbox');
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expect(dirB !.roleB).toEqual('button');
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expect((dirB !as any).role).toBeUndefined();
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expect(renderToHtml(Template, {
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condition: false
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})).toEqual(`<div role="listbox"></div><div role="menu"></div>`);
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expect(myDir !.role).toEqual('listbox');
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});
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it('should process attributes properly inside a for loop', () => {
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class Comp {
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static ngComponentDef = defineComponent({
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type: Comp,
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tag: 'comp',
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template: function(ctx: any, cm: boolean) {
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if (cm) {
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elementStart(0, 'div', ['role', 'button'], [MyDir]);
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elementEnd();
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text(2);
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}
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textBinding(2, bind(load<MyDir>(1).role));
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},
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factory: () => new Comp()
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});
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}
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/**
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* % for (let i = 0; i < 3; i++) {
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* <comp></comp>
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* % }
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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container(0);
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}
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containerRefreshStart(0);
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{
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for (let i = 0; i < 2; i++) {
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if (embeddedViewStart(0)) {
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elementStart(0, Comp);
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elementEnd();
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}
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Comp.ngComponentDef.h(1, 0);
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embeddedViewEnd();
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}
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}
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containerRefreshEnd();
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}
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expect(renderToHtml(Template, {}))
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.toEqual(
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`<comp><div role="button"></div>button</comp><comp><div role="button"></div>button</comp>`);
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});
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});
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});
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