612 lines
17 KiB
HTML
612 lines
17 KiB
HTML
<html lang="en"><head></head><body><form id="mainForm" method="post" action="http://plnkr.co/edit/?p=preview" target="_self"><input type="hidden" name="files[app/app.component.ts]" value="import { Component } from '@angular/core';
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import { Hero, heroes } from './hero';
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@Component({
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moduleId: module.id,
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selector: 'my-app',
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templateUrl: './app.component.html',
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styleUrls: [ './app.component.css' ]
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})
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export class AppComponent {
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heroes = heroes;
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hero = this.heroes[0];
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condition = false;
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logs: string[] = [];
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showSad = true;
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status = 'ready';
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trackById(index: number, hero: Hero): number { return hero.id; }
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}
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/*
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Copyright 2016 Google Inc. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at http://angular.io/license
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*/"><input type="hidden" name="files[app/app.module.ts]" value="import { NgModule } from '@angular/core';
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import { FormsModule } from '@angular/forms';
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import { BrowserModule } from '@angular/platform-browser';
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import { AppComponent } from './app.component';
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import { heroSwitchComponents } from './hero-switch.components';
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import { UnlessDirective } from './unless.directive';
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@NgModule({
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imports: [ BrowserModule, FormsModule ],
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declarations: [
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AppComponent,
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heroSwitchComponents,
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UnlessDirective
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],
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bootstrap: [ AppComponent ]
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})
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export class AppModule { }
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/*
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Copyright 2016 Google Inc. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at http://angular.io/license
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*/"><input type="hidden" name="files[app/hero-switch.components.ts]" value="import { Component, Input } from '@angular/core';
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import { Hero } from './hero';
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@Component({
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selector: 'happy-hero',
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template: `Wow. You like {{hero.name}}. What a happy hero ... just like you.`
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})
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export class HappyHeroComponent {
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@Input() hero: Hero;
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}
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@Component({
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selector: 'sad-hero',
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template: `You like {{hero.name}}? Such a sad hero. Are you sad too?`
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})
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export class SadHeroComponent {
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@Input() hero: Hero;
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}
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@Component({
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selector: 'confused-hero',
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template: `Are you as confused as {{hero.name}}?`
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})
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export class ConfusedHeroComponent {
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@Input() hero: Hero;
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}
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@Component({
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selector: 'unknown-hero',
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template: `{{message}}`
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})
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export class UnknownHeroComponent {
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@Input() hero: Hero;
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get message() {
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return this.hero && this.hero.name ?
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`${this.hero.name} is strange and mysterious.` :
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'Are you feeling indecisive?';
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}
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}
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export const heroSwitchComponents =
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[ HappyHeroComponent, SadHeroComponent, ConfusedHeroComponent, UnknownHeroComponent ];
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/*
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Copyright 2016 Google Inc. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at http://angular.io/license
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*/"><input type="hidden" name="files[app/hero.ts]" value="export class Hero {
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id: number;
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name: string;
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emotion?: string;
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}
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export const heroes: Hero[] = [
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{ id: 1, name: 'Mr. Nice', emotion: 'happy'},
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{ id: 2, name: 'Narco', emotion: 'sad' },
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{ id: 3, name: 'Windstorm', emotion: 'confused' },
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{ id: 4, name: 'Magneta'}
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];
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/*
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Copyright 2016 Google Inc. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at http://angular.io/license
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*/"><input type="hidden" name="files[app/unless.directive.ts]" value="import { Directive, Input, TemplateRef, ViewContainerRef } from '@angular/core';
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/**
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* Add the template content to the DOM unless the condition is true.
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*
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* If the expression assigned to `myUnless` evaluates to a truthy value
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* then the templated elements are removed removed from the DOM,
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* the templated elements are (re)inserted into the DOM.
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*
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* <div *ngUnless="errorCount" class="success">
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* Congrats! Everything is great!
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* </div>
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*
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* ### Syntax
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* *
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* - `<div *myUnless="condition">...</div>`
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* - `<div template="myUnless condition">...</div>`
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* - `<template [myUnless]="condition"><div>...</div></template>`
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*
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*/
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@Directive({ selector: '[myUnless]'})
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export class UnlessDirective {
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private hasView = false;
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constructor(
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private templateRef: TemplateRef<any>,
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private viewContainer: ViewContainerRef) { }
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@Input() set myUnless(condition: boolean) {
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if (!condition && !this.hasView) {
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this.viewContainer.createEmbeddedView(this.templateRef);
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this.hasView = true;
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} else if (condition && this.hasView) {
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this.viewContainer.clear();
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this.hasView = false;
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}
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}
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}
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/*
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Copyright 2016 Google Inc. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at http://angular.io/license
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*/"><input type="hidden" name="files[main.ts]" value="import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
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import { AppModule } from './app/app.module';
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platformBrowserDynamic().bootstrapModule(AppModule);
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/*
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Copyright 2016 Google Inc. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at http://angular.io/license
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*/"><input type="hidden" name="files[app/app.component.css]" value="button {
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min-width: 100px;
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font-size: 100%;
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}
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.box {
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border: 1px solid gray;
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max-width: 600px;
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padding: 4px;
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}
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.choices {
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font-style: italic;
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}
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code, .code {
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background-color: #eee;
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color: black;
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font-family: Courier, sans-serif;
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font-size: 85%;
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}
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div.code {
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width: 400px;
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}
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.heroic {
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font-size: 150%;
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font-weight: bold;
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}
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hr {
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margin: 40px 0
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}
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.odd {
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background-color: palegoldenrod;
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}
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td, th {
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text-align: left;
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vertical-align: top;
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}
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p span { color: red; font-size: 70%; }
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.unless {
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border: 2px solid;
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padding: 6px;
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}
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p.unless {
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width: 500px;
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}
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button.a, span.a, .unless.a {
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color: red;
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border-color: gold;
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background-color: yellow;
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font-size: 100%;
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}
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button.b, span.b, .unless.b {
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color: black;
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border-color: green;
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background-color: lightgreen;
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font-size: 100%;
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}
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/*
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Copyright 2016 Google Inc. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at http://angular.io/license
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*/"><input type="hidden" name="files[styles.css]" value="/* Master Styles */
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h1 {
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color: #369;
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font-family: Arial, Helvetica, sans-serif;
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font-size: 250%;
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}
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h2, h3 {
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color: #444;
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font-family: Arial, Helvetica, sans-serif;
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font-weight: lighter;
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}
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body {
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margin: 2em;
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}
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body, input[text], button {
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color: #888;
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font-family: Cambria, Georgia;
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}
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a {
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cursor: pointer;
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cursor: hand;
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}
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button {
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font-family: Arial;
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background-color: #eee;
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border: none;
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padding: 5px 10px;
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border-radius: 4px;
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cursor: pointer;
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cursor: hand;
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}
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button:hover {
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background-color: #cfd8dc;
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}
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button:disabled {
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background-color: #eee;
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color: #aaa;
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cursor: auto;
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}
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/* Navigation link styles */
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nav a {
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padding: 5px 10px;
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text-decoration: none;
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margin-right: 10px;
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margin-top: 10px;
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display: inline-block;
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background-color: #eee;
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border-radius: 4px;
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}
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nav a:visited, a:link {
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color: #607D8B;
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}
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nav a:hover {
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color: #039be5;
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background-color: #CFD8DC;
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}
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nav a.active {
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color: #039be5;
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}
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/* items class */
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.items {
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margin: 0 0 2em 0;
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list-style-type: none;
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padding: 0;
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width: 24em;
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}
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.items li {
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cursor: pointer;
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position: relative;
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left: 0;
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background-color: #EEE;
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margin: .5em;
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padding: .3em 0;
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height: 1.6em;
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border-radius: 4px;
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}
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.items li:hover {
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color: #607D8B;
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background-color: #DDD;
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left: .1em;
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}
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.items li.selected {
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background-color: #CFD8DC;
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color: white;
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}
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.items li.selected:hover {
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background-color: #BBD8DC;
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}
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.items .text {
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position: relative;
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top: -3px;
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}
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.items .badge {
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display: inline-block;
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font-size: small;
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color: white;
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padding: 0.8em 0.7em 0 0.7em;
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background-color: #607D8B;
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line-height: 1em;
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position: relative;
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left: -1px;
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top: -4px;
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height: 1.8em;
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margin-right: .8em;
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border-radius: 4px 0 0 4px;
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}
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/* everywhere else */
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* {
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font-family: Arial, Helvetica, sans-serif;
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}
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/*
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Copyright 2016 Google Inc. All Rights Reserved.
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Use of this source code is governed by an MIT-style license that
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can be found in the LICENSE file at http://angular.io/license
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*/"><input type="hidden" name="files[app/app.component.html]" value="<h1>Structural Directives</h1>
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<p>Conditional display of hero</p>
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<blockquote>
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<div *ngIf="hero" >{{hero.name}}</div>
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</blockquote>
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<p>List of heroes</p>
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<ul>
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<li *ngFor="let hero of heroes">{{hero.name}}</li>
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</ul>
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<hr>
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<h2 id="ngIf">NgIf</h2>
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<p *ngIf="true">
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Expression is true and ngIf is true.
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This paragraph is in the DOM.
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</p>
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<p *ngIf="false">
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Expression is false and ngIf is false.
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This paragraph is not in the DOM.
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</p>
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<p [style.display]="'block'">
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Expression sets display to "block"" .
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This paragraph is visible.
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</p>
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<p [style.display]="'none'">
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Expression sets display to "none" .
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This paragraph is hidden but still in the DOM.
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</p>
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<h4>NgIf with template</h4>
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<p>&lt;template&gt; element</p>
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<template [ngIf]="hero">
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<div>{{hero.name}}</div>
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</template>
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<p>template attribute</p>
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<div template="ngIf hero">{{hero.name}}</div>
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<hr>
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<h2 id="ng-container">&lt;ng-container&gt;</h2>
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<h4>*ngIf with a &lt;ng-container&gt;</h4>
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<button (click)="hero = hero ? null : heroes[0]">Toggle hero</button>
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<p>
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I turned the corner
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<ng-container *ngIf="hero">
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and saw {{hero.name}}. I waved
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</ng-container>
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and continued on my way.
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</p>
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<p>
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I turned the corner
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<span *ngIf="hero">
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and saw {{hero.name}}. I waved
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</span>
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and continued on my way.
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</p>
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<p><i>&lt;select&gt; with &lt;span&gt;</i></p>
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<div>
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Pick your favorite hero
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(<label><input type="checkbox" checked (change)="showSad = !showSad">show sad</label>)
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</div>
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<select [(ngModel)]="hero">
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<span *ngFor="let h of heroes">
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<span *ngIf="showSad || h.emotion !== 'sad'">
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<option [ngValue]="h">{{h.name}} ({{h.emotion}})</option>
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</span>
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</span>
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</select>
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<p><i>&lt;select&gt; with &lt;ng-container&gt;</i></p>
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<div>
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Pick your favorite hero
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(<label><input type="checkbox" checked (change)="showSad = !showSad">show sad</label>)
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</div>
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<select [(ngModel)]="hero">
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<ng-container *ngFor="let h of heroes">
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<ng-container *ngIf="showSad || h.emotion !== 'sad'">
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<option [ngValue]="h">{{h.name}} ({{h.emotion}})</option>
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</ng-container>
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</ng-container>
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</select>
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<br><br>
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<hr>
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<h2 id="ngFor">NgFor</h2>
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<div class="box">
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<p class="code">&lt;div *ngFor="let hero of heroes; let i=index; let odd=odd; trackBy: trackById" [class.odd]="odd"&gt;</p>
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<div *ngFor="let hero of heroes; let i=index; let odd=odd; trackBy: trackById" [class.odd]="odd">
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({{i}}) {{hero.name}}
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</div>
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<p class="code">&lt;div template="ngFor let hero of heroes; let i=index; let odd=odd; trackBy: trackById" [class.odd]="odd"&gt;</p>
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<div template="ngFor let hero of heroes; let i=index; let odd=odd; trackBy: trackById" [class.odd]="odd">
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({{i}}) {{hero.name}}
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</div>
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<p class="code">&lt;template ngFor let-hero [ngForOf]="heroes" let-i="index" let-odd="odd" [ngForTrackBy]="trackById"&gt;</p>
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<template ngFor let-hero [ngForOf]="heroes" let-i="index" let-odd="odd" [ngForTrackBy]="trackById">
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<div [class.odd]="odd">({{i}}) {{hero.name}}</div>
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</template>
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</div>
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<hr>
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<h2 id="ngSwitch">NgSwitch</h2>
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<div>Pick your favorite hero</div>
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<p>
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<ng-container *ngFor="let h of heroes">
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<label>
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<input type="radio" name="heroes" [(ngModel)]="hero" [value]="h">{{h.name}}
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</label>
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</ng-container>
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<label><input type="radio" name="heroes" (click)="hero = null">None of the above</label>
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</p>
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<h4>NgSwitch</h4>
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<div [ngSwitch]="hero?.emotion">
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<happy-hero *ngSwitchCase="'happy'" [hero]="hero"></happy-hero>
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<sad-hero *ngSwitchCase="'sad'" [hero]="hero"></sad-hero>
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<confused-hero *ngSwitchCase="'confused'" [hero]="hero"></confused-hero>
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<unknown-hero *ngSwitchDefault [hero]="hero"></unknown-hero>
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</div>
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<h4>NgSwitch with <i>template</i> attribute</h4>
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<div [ngSwitch]="hero?.emotion">
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<happy-hero template="ngSwitchCase 'happy'" [hero]="hero"></happy-hero>
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<sad-hero template="ngSwitchCase 'sad'" [hero]="hero"></sad-hero>
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<confused-hero template="ngSwitchCase 'confused'" [hero]="hero"></confused-hero>
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<unknown-hero template="ngSwitchDefault" [hero]="hero"></unknown-hero>
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</div>
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<h4>NgSwitch with &lt;template&gt;</h4>
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<div [ngSwitch]="hero?.emotion">
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<template [ngSwitchCase]="'happy'">
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<happy-hero [hero]="hero"></happy-hero>
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</template>
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<template [ngSwitchCase]="'sad'">
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<sad-hero [hero]="hero"></sad-hero>
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</template>
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<template [ngSwitchCase]="'confused'">
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<confused-hero [hero]="hero"></confused-hero>
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</template >
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<template ngSwitchDefault>
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<unknown-hero [hero]="hero"></unknown-hero>
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</template>
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</div>
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<hr>
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<h2>&lt;template&gt;</h2>
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<p>Hip!</p>
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<template>
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<p>Hip!</p>
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</template>
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<p>Hooray!</p>
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<hr>
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<h2 id="myUnless">UnlessDirective</h2>
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<p>
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The condition is currently
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<span [ngClass]="{ a: !condition, b: condition, unless: true }">{{condition}}</span>.
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<button
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(click)="condition = !condition"
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[ngClass] = "{ a: condition, b: !condition }" >
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Toggle condition to {{condition ? 'false' : 'true'}}
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</button>
|
|
</p>
|
|
<p *myUnless="condition" class="unless a">
|
|
(A) This paragraph is displayed because the condition is false.
|
|
</p>
|
|
|
|
<p *myUnless="!condition" class="unless b">
|
|
(B) Although the condition is true,
|
|
this paragraph is displayed because myUnless is set to false.
|
|
</p>
|
|
|
|
|
|
<h4>UnlessDirective with template</h4>
|
|
|
|
<p *myUnless="condition">Show this sentence unless the condition is true.</p>
|
|
|
|
<p template="myUnless condition" class="code unless">
|
|
(A) &lt;p template="myUnless condition" class="code unless"&gt;
|
|
</p>
|
|
|
|
<template [myUnless]="condition">
|
|
<p class="code unless">
|
|
(A) &lt;template [myUnless]="condition"&gt;
|
|
</p>
|
|
</template>
|
|
|
|
|
|
|
|
<!--
|
|
Copyright 2016 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 http://angular.io/license
|
|
-->"><input type="hidden" name="files[index.html]" value="<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<title>Angular Structural Directives</title>
|
|
<script>document.write('<base href="' + document.location + '" />');</script>
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<link rel="stylesheet" href="styles.css">
|
|
|
|
<!-- Polyfills -->
|
|
<script src="https://unpkg.com/core-js/client/shim.min.js"></script>
|
|
|
|
<script src="https://unpkg.com/zone.js@0.7.4?main=browser"></script>
|
|
<script src="https://unpkg.com/systemjs@0.19.39/dist/system.src.js"></script>
|
|
|
|
<script src="https://cdn.rawgit.com/angular/angular.io/b3c65a9/public/docs/_examples/_boilerplate/systemjs.config.web.js"></script>
|
|
<script>
|
|
System.import('main.js').catch(function(err){ console.error(err); });
|
|
</script>
|
|
</head>
|
|
|
|
<body>
|
|
<my-app>Loading...</my-apps>
|
|
</body>
|
|
|
|
</html>
|
|
|
|
|
|
<!--
|
|
Copyright 2016 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 http://angular.io/license
|
|
-->"><input type="hidden" name="tags[0]" value="angular"><input type="hidden" name="tags[1]" value="example"><input type="hidden" name="tags[2]" value="structural"><input type="hidden" name="tags[3]" value="directives"><input type="hidden" name="tags[4]" value="template"><input type="hidden" name="tags[5]" value="ngIf"><input type="hidden" name="tags[6]" value="ngSwitch"><input type="hidden" name="tags[7]" value="ngFor"><input type="hidden" name="private" value="true"><input type="hidden" name="description" value="Angular Example - Structural directives"></form><script>document.getElementById("mainForm").submit();</script></body></html> |