Misko Hevery b4db73d0bf feat: ngIf now supports else; saves condition to local var
NgIf syntax has been extended to support else clause to display template
when the condition is false. In addition the condition value can now
be stored in local variable, for later reuse. This is especially useful
when used with the `async` pipe.

Example:

```
<div *ngIf="userObservable | async; else loading; let user">
  Hello {{user.last}}, {{user.first}}!
</div>
<template #loading>Waiting...</template>
```

closes #13061
closes #13297
2016-12-09 11:19:08 -08:00

232 lines
7.0 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {MockData} from './test_utils';
export const toh = {
app: {
'app.component.ts': `import { Component } from '@angular/core';
export class Hero {
id: number;
name: string;
}
@Component({
selector: 'my-app',
template: \`~{empty}
<~{start-tag}h~{start-tag-after-h}1~{start-tag-h1} ~{h1-after-space}>~{h1-content} {{~{sub-start}title~{sub-end}}}</h1>
~{after-h1}<h2>{{~{h2-hero}hero.~{h2-name}name}} details!</h2>
<div><label>id: </label>{{~{label-hero}hero.~{label-id}id}}</div>
<div ~{div-attributes}>
<label>name: </label>
</div>
&~{entity-amp}amp;
\`
})
export class AppComponent {
title = 'Tour of Heroes';
hero: Hero = {
id: 1,
name: 'Windstorm'
};
private internal: string;
}`,
'main.ts': `
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { CaseIncompleteOpen, CaseMissingClosing, CaseUnknown, Pipes, TemplateReference, NoValueAttribute,
AttributeBinding, StringModel,PropertyBinding, EventBinding, TwoWayBinding, EmptyInterpolation,
ForOfEmpty, ForLetIEqual, ForOfLetEmpty, ForUsingComponent, References, TestComponent} from './parsing-cases';
import { WrongFieldReference, WrongSubFieldReference, PrivateReference, ExpectNumericType, LowercasePipe } from './expression-cases';
import { UnknownPeople, UnknownEven, UnknownTrackBy } from './ng-for-cases';
import { ShowIf } from './ng-if-cases';
@NgModule({
imports: [CommonModule, FormsModule],
declarations: [AppComponent, CaseIncompleteOpen, CaseMissingClosing, CaseUnknown, Pipes, TemplateReference, NoValueAttribute,
AttributeBinding, StringModel, PropertyBinding, EventBinding, TwoWayBinding, EmptyInterpolation, ForOfEmpty, ForOfLetEmpty,
ForLetIEqual, ForUsingComponent, References, TestComponent, WrongFieldReference, WrongSubFieldReference, PrivateReference,
ExpectNumericType, UnknownPeople, UnknownEven, UnknownTrackBy, ShowIf, LowercasePipe]
})
export class AppModule {}
declare function bootstrap(v: any): void;
bootstrap(AppComponent);
`,
'parsing-cases.ts': `
import {Component, Directive, Input, Output, EventEmitter} from '@angular/core';
import {Hero} from './app.component';
@Component({template: '<h1>Some <~{incomplete-open-lt}a~{incomplete-open-a} ~{incomplete-open-attr} text</h1>'})
export class CaseIncompleteOpen {}
@Component({template: '<h1>Some <a> ~{missing-closing} text</h1>'})
export class CaseMissingClosing {}
@Component({template: '<h1>Some <unknown ~{unknown-element}> text</h1>'})
export class CaseUnknown {}
@Component({template: '<h1>{{data | ~{before-pipe}lowe~{in-pipe}rcase~{after-pipe} }}'})
export class Pipes {
data = 'Some string';
}
@Component({template: '<h1 h~{no-value-attribute}></h1>'})
export class NoValueAttribute {}
@Component({template: '<h1 model="~{attribute-binding-model}test"></h1>'})
export class AttributeBinding {
test: string;
}
@Component({template: '<h1 [model]="~{property-binding-model}test"></h1>'})
export class PropertyBinding {
test: string;
}
@Component({template: '<h1 (model)="~{event-binding-model}modelChanged()"></h1>'})
export class EventBinding {
test: string;
modelChanged() {}
}
@Component({template: '<h1 [(model)]="~{two-way-binding-model}test"></h1>'})
export class TwoWayBinding {
test: string;
}
@Directive({selector: '[string-model]'})
export class StringModel {
@Input() model: string;
@Output() modelChanged: EventEmitter<string>;
}
interface Person {
name: string;
age: number
}
@Component({template: '<div *ngFor="~{for-empty}"></div>'})
export class ForOfEmpty {}
@Component({template: '<div *ngFor="let ~{for-let-empty}"></div>'})
export class ForOfLetEmpty {}
@Component({template: '<div *ngFor="let i = ~{for-let-i-equal}"></div>'})
export class ForLetIEqual {}
@Component({template: '<div *ngFor="~{for-let}let ~{for-person}person ~{for-of}of ~{for-people}people"> <span>Name: {{~{for-interp-person}person.~{for-interp-name}name}}</span><span>Age: {{person.~{for-interp-age}age}}</span></div>'})
export class ForUsingComponent {
people: Person[];
}
@Component({template: '<div #div> <test-comp #test1> {{~{test-comp-content}}} {{test1.~{test-comp-after-test}name}} {{div.~{test-comp-after-div}.innerText}} </test-comp> </div> <test-comp #test2></test-comp>'})
export class References {}
@Component({selector: 'test-comp', template: '<div>Testing: {{name}}</div>'})
export class TestComponent {
«@Input('∆tcName∆') name = 'test';»
«@Output('∆test∆') testEvent = new EventEmitter();»
}
@Component({templateUrl: 'test.ng'})
export class TemplateReference {
title = 'Some title';
hero: Hero = {
id: 1,
name: 'Windstorm'
};
myClick(event: any) {
}
}
@Component({template: '{{~{empty-interpolation}}}'})
export class EmptyInterpolation {
title = 'Some title';
subTitle = 'Some sub title';
}
`,
'expression-cases.ts': `
import {Component} from '@angular/core';
export interface Person {
name: string;
age: number;
}
@Component({template: '{{~{foo}foo~{foo-end}}}'})
export class WrongFieldReference {
bar = 'bar';
}
@Component({template: '{{~{nam}person.nam~{nam-end}}}'})
export class WrongSubFieldReference {
person: Person = { name: 'Bob', age: 23 };
}
@Component({template: '{{~{myField}myField~{myField-end}}}'})
export class PrivateReference {
private myField = 'My Field';
}
@Component({template: '{{~{mod}"a" ~{mod-end}% 2}}'})
export class ExpectNumericType {}
@Component({template: '{{ (name | lowercase).~{string-pipe}substring }}'})
export class LowercasePipe {
name: string;
}
`,
'ng-for-cases.ts': `
import {Component} from '@angular/core';
export interface Person {
name: string;
age: number;
}
@Component({template: '<div *ngFor="let person of ~{people_1}people_1~{people_1-end}"> <span>{{person.name}}</span> </div>'})
export class UnknownPeople {}
@Component({template: '<div ~{even_1}*ngFor="let person of people; let e = even_1"~{even_1-end}><span>{{person.name}}</span> </div>'})
export class UnknownEven {
people: Person[];
}
@Component({template: '<div *ngFor="let person of people; trackBy ~{trackBy_1}trackBy_1~{trackBy_1-end}"><span>{{person.name}}</span> </div>'})
export class UnknownTrackBy {
people: Person[];
}
`,
'ng-if-cases.ts': `
import {Component} from '@angular/core';
@Component({template: '<div ~{implicit}*ngIf="show; let l=unknown"~{implicit-end}>Showing now!</div>'})
export class ShowIf {
show = false;
}
`,
'test.ng': `~{empty}
<~{start-tag}h~{start-tag-after-h}1~{start-tag-h1} ~{h1-after-space}>~{h1-content} {{~{sub-start}title~{sub-end}}}</h1>
~{after-h1}<h2>{{~{h2-hero}hero.~{h2-name}name}} details!</h2>
<div><label>id: </label>{{~{label-hero}hero.~{label-id}id}}</div>
<div ~{div-attributes}>
<label>name: </label>
</div>
&~{entity-amp}amp;
`
}
};