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chore: migrate one article to use local codebase

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Corbin Crutchley
2023-11-12 00:30:37 -07:00
parent 91faa6099c
commit 3ba9ec66ed
52 changed files with 1602 additions and 3 deletions
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100
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/angular.json Normal file
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{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"demo": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {},
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/demo",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.app.json",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.css"
],
"scripts": []
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "demo:build"
},
"configurations": {
"production": {
"browserTarget": "demo:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "demo:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.spec.json",
"karmaConfig": "src/karma.conf.js",
"styles": [
"styles.css"
],
"scripts": [],
"assets": [
"src/favicon.ico",
"src/assets"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"defaultProject": "demo"
}

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content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/package.json Normal file
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{
"name": "angular",
"version": "0.0.0",
"private": true,
"dependencies": {
"@angular/animations": "9.1.0",
"@angular/common": "^9.1.0",
"@angular/compiler": "^9.1.0",
"@angular/core": "^9.1.0",
"@angular/forms": "^9.1.0",
"@angular/platform-browser": "^9.1.0",
"@angular/platform-browser-dynamic": "^9.1.0",
"@angular/router": "^9.1.0",
"core-js": "^3.6.4",
"rxjs": "^6.5.4",
"tslib": "^1.10.0",
"zone.js": "^0.10.3"
},
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.10.0",
"@angular/cli": "~7.0.2",
"@angular/compiler-cli": "~7.0.0",
"@angular/language-service": "~7.0.0",
"@types/node": "~8.9.4",
"@types/jasmine": "~2.8.8",
"@types/jasminewd2": "~2.0.3",
"codelyzer": "~4.5.0",
"jasmine-core": "~2.99.1",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~3.0.0",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.1",
"karma-jasmine": "~1.1.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.11.0",
"typescript": "~3.1.1"
}
}

3
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/app/app.component.css Normal file
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p {
font-family: Lato;
}

1
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/app/app.component.html Normal file
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<app-example-input placeholder="What's your favorite animal?"></app-example-input>

10
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/app/app.component.ts Normal file
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import { Component } from '@angular/core';
@Component({
selector: 'my-app',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
name = 'Angular';
}

14
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/app/app.module.ts Normal file
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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { HelloComponent } from './hello.component';
import { ExampleInputComponent } from './example-input/example-input.component';
@NgModule({
imports: [ BrowserModule, FormsModule ],
declarations: [ AppComponent, HelloComponent, ExampleInputComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }

67
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/app/example-input/example-input.component.css Normal file
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.inputContainer {
display: flex;
flex-direction: column;
position: relative;
}
.inputLabel {
font-size: 1.2rem;
margin-top: 0;
margin-bottom: 0.4rem;
}
.inputInput {
color: #132a58;
padding: 1rem 0.5rem;
flex-grow: 1;
display: block;
border: 1px solid rgba(0, 51, 153, 0.2);
border-radius: 8px;
background: transparent;
}
.hiddenMessage.hideTheMessage {
opacity: 0;
height: 0;
}
.hiddenMessage {
animation: shake 2s ease-in-out;
animation-iteration-count:infinite;
opacity: 1;
transition: opacity 200ms ease-in-out;
}
@media (prefers-reduced-motion: reduce) {
.hiddenMessage {
animation: none;
transition: none;
}
}
@keyframes shake {
10%, 90% {
transform: translate3d(-2px, -2px, 0);
}
20%, 80% {
transform: translate3d(2px, 0px, 0);
}
30%, 50%, 70% {
transform: translate3d(-4px, 0, 0);
}
40%, 60% {
transform: translate3d(4px, 4px, 0);
}
}
.visually-hidden {
position: absolute !important;
height: 1px;
width: 1px;
overflow: hidden;
clip: rect(1px, 1px, 1px, 1px);
white-space: nowrap; /* added line */
}

38
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/app/example-input/example-input.component.ts Normal file
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import { Component, Input } from "@angular/core";
@Component({
selector: "app-example-input",
template: `
<label class="inputContainer">
<span class="inputLabel">{{ placeholder }}</span>
<input
placeholder=""
class="inputInput"
[(ngModel)]="value"
/>
</label>
<p
class="hiddenMessage"
[class.hideTheMessage]="!isSecretValue"
aria-hidden="true"
>
You unlocked the secret unicorn rave!<span>🦄🦄🦄</span>
</p>
<p aria-live="assertive" class="visually-hidden">
{{
isSecretValue
? "You discovered the secret unicorn rave! They're all having a party now that you summoned them by typing their name"
: ""
}}
</p>
`,
styleUrls: ["./example-input.component.css"]
})
export class ExampleInputComponent {
@Input() placeholder: string;
value: any = "";
get isSecretValue() {
return /unicorns/.exec(this.value.toLowerCase());
}
}

10
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/app/hello.component.ts Normal file
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import { Component, Input } from '@angular/core';
@Component({
selector: 'hello',
template: `<h1>Hello {{name}}!</h1>`,
styles: [`h1 { font-family: Lato; }`]
})
export class HelloComponent {
@Input() name: string;
}

8
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/index.html Normal file
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<html>
<head>
<title>Angular App</title>
</head>
<body>
<my-app>loading</my-app>
</body>
</html>

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content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/karma.conf.js Normal file
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// Karma configuration file, see link for more information
// https://karma-runner.github.io/1.0/config/configuration-file.html
module.exports = function (config) {
config.set({
basePath: '',
frameworks: ['jasmine', '@angular-devkit/build-angular'],
plugins: [
require('karma-jasmine'),
require('karma-chrome-launcher'),
require('karma-jasmine-html-reporter'),
require('karma-coverage-istanbul-reporter'),
require('@angular-devkit/build-angular/plugins/karma')
],
client: {
clearContext: false // leave Jasmine Spec Runner output visible in browser
},
coverageIstanbulReporter: {
dir: require('path').join(__dirname, './coverage/my-app'),
reports: ['html', 'lcovonly', 'text-summary'],
fixWebpackSourcePaths: true
},
reporters: ['progress', 'kjhtml'],
port: 9876,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: true,
browsers: ['Chrome'],
singleRun: false,
restartOnFileChange: true
});
};

16
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/main.ts Normal file
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import './polyfills';
import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
platformBrowserDynamic().bootstrapModule(AppModule).then(ref => {
// Ensure Angular destroys itself on hot reloads.
if (window['ngRef']) {
window['ngRef'].destroy();
}
window['ngRef'] = ref;
// Otherwise, log the boot error
}).catch(err => console.error(err));

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content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/polyfills.ts Normal file
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/**
* This file includes polyfills needed by Angular and is loaded before the app.
* You can add your own extra polyfills to this file.
*
* This file is divided into 2 sections:
* 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
* 2. Application imports. Files imported after ZoneJS that should be loaded before your main
* file.
*
* The current setup is for so-called "evergreen" browsers; the last versions of browsers that
* automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
* Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
*
* Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html
*/
/***************************************************************************************************
* BROWSER POLYFILLS
*/
/** IE9, IE10 and IE11 requires all of the following polyfills. **/
// import 'core-js/es6/symbol';
// import 'core-js/es6/object';
// import 'core-js/es6/function';
// import 'core-js/es6/parse-int';
// import 'core-js/es6/parse-float';
// import 'core-js/es6/number';
// import 'core-js/es6/math';
// import 'core-js/es6/string';
// import 'core-js/es6/date';
// import 'core-js/es6/array';
// import 'core-js/es6/regexp';
// import 'core-js/es6/map';
// import 'core-js/es6/set';
/** IE10 and IE11 requires the following for NgClass support on SVG elements */
// import 'classlist.js'; // Run `npm install --save classlist.js`.
/** IE10 and IE11 requires the following to support `@angular/animation`. */
// import 'web-animations-js'; // Run `npm install --save web-animations-js`.
/** Evergreen browsers require these. **/
// import 'core-js/es6/reflect';
// import 'core-js/es7/reflect';
/**
* Web Animations `@angular/platform-browser/animations`
* Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
* Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
*/
// import 'web-animations-js'; // Run `npm install --save web-animations-js`.
/***************************************************************************************************
* Zone JS is required by Angular itself.
*/
import 'zone.js/dist/zone'; // Included with Angular CLI.
/***************************************************************************************************
* APPLICATION IMPORTS
*/
/**
* Date, currency, decimal and percent pipes.
* Needed for: All but Chrome, Firefox, Edge, IE11 and Safari 10
*/
// import 'intl'; // Run `npm install --save intl`.

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content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/styles.css Normal file
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/* Add application styles & imports to this file! */

14
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/tsconfig.app.json Normal file
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{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/app",
"types": []
},
"files": [
"main.ts",
"polyfills.ts"
],
"include": [
"**/*.d.ts"
]
}

18
content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/src/tsconfig.spec.json Normal file
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{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/spec",
"types": [
"jasmine",
"node"
]
},
"files": [
"test.ts",
"polyfills.ts"
],
"include": [
"**/*.spec.ts",
"**/*.d.ts"
]
}

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content/blog/angular-components-control-value-accessor/angular-unicorns-text-input/tsconfig.json Normal file
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{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"downlevelIteration": true,
"experimentalDecorators": true,
"module": "esnext",
"moduleResolution": "node",
"importHelpers": true,
"target": "es2015",
"lib": [
"es2018",
"dom"
]
},
"angularCompilerOptions": {
"fullTemplateTypeCheck": true,
"strictInjectionParameters": true
}
}

100
content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject/angular.json Normal file
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{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"demo": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {},
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/demo",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.app.json",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.css"
],
"scripts": []
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "demo:build"
},
"configurations": {
"production": {
"browserTarget": "demo:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "demo:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.spec.json",
"karmaConfig": "src/karma.conf.js",
"styles": [
"styles.css"
],
"scripts": [],
"assets": [
"src/favicon.ico",
"src/assets"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"defaultProject": "demo"
}

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content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject/package.json Normal file
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{
"name": "angular",
"version": "0.0.0",
"private": true,
"dependencies": {
"@angular/animations": "9.1.9",
"@angular/common": "^9.1.4",
"@angular/compiler": "9.1.9",
"@angular/core": "^9.1.4",
"@angular/forms": "^9.1.4",
"@angular/platform-browser": "^9.1.4",
"@angular/platform-browser-dynamic": "^9.1.9",
"@angular/router": "^9.1.4",
"rxjs": "^6.5.5",
"tslib": "^1.11.1",
"zone.js": "^0.10.3"
},
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.10.0",
"@angular/cli": "9.0.0-rc.7",
"@angular/compiler-cli": "9.0.0-rc.7",
"@angular/language-service": "~7.0.0",
"@types/node": "~8.9.4",
"@types/jasmine": "~2.8.8",
"@types/jasminewd2": "~2.0.3",
"codelyzer": "~4.5.0",
"jasmine-core": "~2.99.1",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~3.0.0",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.1",
"karma-jasmine": "~1.1.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.11.0",
"typescript": "~3.1.1"
}
}

3
content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject/src/app/app.component.css Normal file
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p {
font-family: Lato;
}

3
content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject/src/app/app.component.html Normal file
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<h1>Form Control</h1>
<app-example-input placeholder="What's your favorite animal?" [formControl]="control"></app-example-input>
<p>The value of the input is: {{control.value}}</p>

11
content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject/src/app/app.component.ts Normal file
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import { Component } from '@angular/core';
import {FormControl, Validators} from '@angular/forms';
@Component({
selector: 'my-app',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
control = new FormControl('', Validators.required);
}

15
content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject/src/app/app.module.ts Normal file
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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { ReactiveFormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { ExampleInputComponent } from './example-input/example-input.component';
@NgModule({
imports: [ ReactiveFormsModule, FormsModule, BrowserModule ],
declarations: [ AppComponent, ExampleInputComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }

75
content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject/src/app/example-input/example-input.component.css Normal file
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.inputContainer {
display: flex;
flex-direction: column;
position: relative;
}
.inputLabel {
font-size: 1.2rem;
margin-top: 0;
margin-bottom: 0.4rem;
}
.inputInput {
color: #132a58;
padding: 1rem 0.5rem;
flex-grow: 1;
display: block;
border: 1px solid rgba(0, 51, 153, 0.2);
border-radius: 8px;
background: transparent;
}
.redtext {
color: red;
}
.redoutline {
border-color: red;
}
.hiddenMessage.hideTheMessage {
opacity: 0;
height: 0;
}
.hiddenMessage {
animation: shake 2s ease-in-out;
animation-iteration-count:infinite;
opacity: 1;
transition: opacity 200ms ease-in-out;
}
@media (prefers-reduced-motion: reduce) {
.hiddenMessage {
animation: none;
transition: none;
}
}
@keyframes shake {
10%, 90% {
transform: translate3d(-2px, -2px, 0);
}
20%, 80% {
transform: translate3d(2px, 0px, 0);
}
30%, 50%, 70% {
transform: translate3d(-4px, 0, 0);
}
40%, 60% {
transform: translate3d(4px, 4px, 0);
}
}
.visually-hidden {
position: absolute !important;
height: 1px;
width: 1px;
overflow: hidden;
clip: rect(1px, 1px, 1px, 1px);
white-space: nowrap; /* added line */
}

20
content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject/src/app/example-input/example-input.component.html Normal file
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<label class="inputContainer">
<span class="inputLabel" [class.redtext]="errors"
>{{ placeholder }}</span>
<input
placeholder=""
class="inputInput"
[class.redoutline]="errors"
[disabled]="disabled"
[(ngModel)]="value"
(change)="onChange($event)"
(blur)="onTouched()"
/>
</label>
<p class="hiddenMessage" [class.hideTheMessage]="!isSecretValue" aria-hidden="true">
You unlocked the secret unicorn
rave!<span>🦄🦄🦄</span></p>
<p aria-live="assertive" class="visually-hidden">
{{isSecretValue ? "You discovered the secret unicorn rave! They're all having a party now that you summoned them by typing their name" : ""}}
</p>
<p aria-live="assertive">You have the following errors: {{errors | json}}</p>

114
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import {
Component,
Input,
ChangeDetectorRef,
Optional,
Self,
OnInit
} from "@angular/core";
import { ControlValueAccessor, NgControl } from "@angular/forms";
function coerceBooleanProperty(value: any): boolean {
return value != null && `${value}` !== "false";
}
@Component({
selector: "app-example-input",
templateUrl: "./example-input.component.html",
styleUrls: ["./example-input.component.css"]
})
export class ExampleInputComponent
implements OnInit, ControlValueAccessor {
constructor(
@Optional() @Self() public ngControl: NgControl,
private _changeDetector: ChangeDetectorRef
) {
if (ngControl != null) {
// Setting the value accessor directly (instead of using
// the providers) to avoid running into a circular import.
ngControl.valueAccessor = this;
}
}
@Input() placeholder: string;
private _value: any = "";
private _disabled: boolean = false;
/** The method to be called in order to update ngModel */
_controlValueAccessorChangeFn: (value: any) => void = () => {};
/**
* onTouch function registered via registerOnTouch (ControlValueAccessor).
*/
onTouched: () => any = () => {};
get isSecretValue() {
return /unicorns/.exec(this._value);
}
ngOnInit() {
const control = this.ngControl && this.ngControl.control;
if (control) {
console.log("ngOnInit", control);
// FormControl should be available here
}
}
get errors() {
const control = this.ngControl && this.ngControl.control;
if (control) {
return control.touched && control.errors;
}
return null;
}
/**
* Getters and setters for internal values
*/
@Input()
get value(): any {
return this._value;
}
set value(newValue: any) {
if (this._value !== newValue) {
// Set this before proceeding to ensure no circular loop occurs with selection.
this._value = newValue;
}
}
@Input()
get disabled(): boolean {
return this._disabled;
}
set disabled(value) {
this._disabled = coerceBooleanProperty(value);
}
onChange(event: any) {
this._controlValueAccessorChangeFn(event.target.value);
}
/**
* Methods from the ControlValueAccessor
*/
writeValue(value: any) {
this.value = value;
this._changeDetector.markForCheck();
}
registerOnChange(fn: (value: any) => void) {
this._controlValueAccessorChangeFn = fn;
}
registerOnTouched(fn: any) {
this.onTouched = fn;
}
// Optional
setDisabledState(isDisabled: boolean) {
this.disabled = isDisabled;
this._changeDetector.markForCheck();
}
}

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<html>
<head>
<title>Angular App</title>
</head>
<body>
<my-app>loading</my-app>
</body>
</html>

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// Karma configuration file, see link for more information
// https://karma-runner.github.io/1.0/config/configuration-file.html
module.exports = function (config) {
config.set({
basePath: '',
frameworks: ['jasmine', '@angular-devkit/build-angular'],
plugins: [
require('karma-jasmine'),
require('karma-chrome-launcher'),
require('karma-jasmine-html-reporter'),
require('karma-coverage-istanbul-reporter'),
require('@angular-devkit/build-angular/plugins/karma')
],
client: {
clearContext: false // leave Jasmine Spec Runner output visible in browser
},
coverageIstanbulReporter: {
dir: require('path').join(__dirname, './coverage/my-app'),
reports: ['html', 'lcovonly', 'text-summary'],
fixWebpackSourcePaths: true
},
reporters: ['progress', 'kjhtml'],
port: 9876,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: true,
browsers: ['Chrome'],
singleRun: false,
restartOnFileChange: true
});
};

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import './polyfills';
import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
platformBrowserDynamic().bootstrapModule(AppModule).then(ref => {
// Ensure Angular destroys itself on hot reloads.
if (window['ngRef']) {
window['ngRef'].destroy();
}
window['ngRef'] = ref;
// Otherwise, log the boot error
}).catch(err => console.error(err));

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/**
* This file includes polyfills needed by Angular and is loaded before the app.
* You can add your own extra polyfills to this file.
*
* This file is divided into 2 sections:
* 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
* 2. Application imports. Files imported after ZoneJS that should be loaded before your main
* file.
*
* The current setup is for so-called "evergreen" browsers; the last versions of browsers that
* automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
* Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
*
* Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html
*/
/***************************************************************************************************
* BROWSER POLYFILLS
*/
/** IE9, IE10 and IE11 requires all of the following polyfills. **/
// import 'core-js/es6/symbol';
// import 'core-js/es6/object';
// import 'core-js/es6/function';
// import 'core-js/es6/parse-int';
// import 'core-js/es6/parse-float';
// import 'core-js/es6/number';
// import 'core-js/es6/math';
// import 'core-js/es6/string';
// import 'core-js/es6/date';
// import 'core-js/es6/array';
// import 'core-js/es6/regexp';
// import 'core-js/es6/map';
// import 'core-js/es6/set';
/** IE10 and IE11 requires the following for NgClass support on SVG elements */
// import 'classlist.js'; // Run `npm install --save classlist.js`.
/** IE10 and IE11 requires the following to support `@angular/animation`. */
// import 'web-animations-js'; // Run `npm install --save web-animations-js`.
/** Evergreen browsers require these. **/
// import 'core-js/es6/reflect';
// import 'core-js/es7/reflect';
/**
* Web Animations `@angular/platform-browser/animations`
* Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
* Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
*/
// import 'web-animations-js'; // Run `npm install --save web-animations-js`.
/***************************************************************************************************
* Zone JS is required by Angular itself.
*/
import 'zone.js/dist/zone'; // Included with Angular CLI.
/***************************************************************************************************
* APPLICATION IMPORTS
*/
/**
* Date, currency, decimal and percent pipes.
* Needed for: All but Chrome, Firefox, Edge, IE11 and Safari 10
*/
// import 'intl'; // Run `npm install --save intl`.

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/* Add application styles & imports to this file! */

14
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{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/app",
"types": []
},
"files": [
"main.ts",
"polyfills.ts"
],
"include": [
"**/*.d.ts"
]
}

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{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/spec",
"types": [
"jasmine",
"node"
]
},
"files": [
"test.ts",
"polyfills.ts"
],
"include": [
"**/*.spec.ts",
"**/*.d.ts"
]
}

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{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"downlevelIteration": true,
"experimentalDecorators": true,
"module": "esnext",
"moduleResolution": "node",
"importHelpers": true,
"target": "es2015",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2018",
"dom"
]
},
"angularCompilerOptions": {
"enableIvy": true,
"fullTemplateTypeCheck": true,
"strictInjectionParameters": true
}
}

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{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"demo": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {},
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist/demo",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.app.json",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.css"
],
"scripts": []
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "demo:build"
},
"configurations": {
"production": {
"browserTarget": "demo:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "demo:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.spec.json",
"karmaConfig": "src/karma.conf.js",
"styles": [
"styles.css"
],
"scripts": [],
"assets": [
"src/favicon.ico",
"src/assets"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"defaultProject": "demo"
}

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{
"name": "angular",
"version": "0.0.0",
"private": true,
"dependencies": {
"@angular/animations": "9.1.9",
"@angular/common": "^9.1.4",
"@angular/compiler": "9.1.9",
"@angular/core": "^9.1.4",
"@angular/forms": "^9.1.4",
"@angular/platform-browser": "^9.1.4",
"@angular/platform-browser-dynamic": "^9.1.9",
"@angular/router": "^9.1.4",
"rxjs": "^6.5.5",
"tslib": "^1.11.1",
"zone.js": "^0.10.3"
},
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.10.0",
"@angular/cli": "9.0.0-rc.7",
"@angular/compiler-cli": "9.0.0-rc.7",
"@angular/language-service": "~7.0.0",
"@types/node": "~8.9.4",
"@types/jasmine": "~2.8.8",
"@types/jasminewd2": "~2.0.3",
"codelyzer": "~4.5.0",
"jasmine-core": "~2.99.1",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~3.0.0",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.1",
"karma-jasmine": "~1.1.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.11.0",
"typescript": "~3.1.1"
}
}

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p {
font-family: Lato;
}

6
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<h1>Form Control</h1>
<app-example-input placeholder="What's your favorite animal?" [formControl]="control"></app-example-input>
<p>The value of the input is: {{control.value}}</p>
<h1>ngModel</h1>
<app-example-input placeholder="What's your favorite animal?" [(ngModel)]="modelValue"></app-example-input>
<p>The value of the input is: {{modelValue}}</p>

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import { Component, VERSION } from '@angular/core';
import {FormControl} from '@angular/forms';
@Component({
selector: 'my-app',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
control = new FormControl('');
modelValue = "";
}

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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { ReactiveFormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { ExampleInputComponent } from './example-input/example-input.component';
@NgModule({
imports: [ ReactiveFormsModule, FormsModule, BrowserModule ],
declarations: [ AppComponent, ExampleInputComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }

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.inputContainer {
display: flex;
flex-direction: column;
position: relative;
}
.inputLabel {
font-size: 1.2rem;
margin-top: 0;
margin-bottom: 0.4rem;
}
.inputInput {
color: #132a58;
padding: 1rem 0.5rem;
flex-grow: 1;
display: block;
border: 1px solid rgba(0, 51, 153, 0.2);
border-radius: 8px;
background: transparent;
}
.hiddenMessage.hideTheMessage {
opacity: 0;
height: 0;
}
.hiddenMessage {
animation: shake 2s ease-in-out;
animation-iteration-count:infinite;
opacity: 1;
transition: opacity 200ms ease-in-out;
}
@media (prefers-reduced-motion: reduce) {
.hiddenMessage {
animation: none;
transition: none;
}
}
@keyframes shake {
10%, 90% {
transform: translate3d(-2px, -2px, 0);
}
20%, 80% {
transform: translate3d(2px, 0px, 0);
}
30%, 50%, 70% {
transform: translate3d(-4px, 0, 0);
}
40%, 60% {
transform: translate3d(4px, 4px, 0);
}
}
.visually-hidden {
position: absolute !important;
height: 1px;
width: 1px;
overflow: hidden;
clip: rect(1px, 1px, 1px, 1px);
white-space: nowrap; /* added line */
}

17
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<label class="inputContainer">
<span class="inputLabel">{{ placeholder }}</span>
<input
placeholder=""
class="inputInput"
[disabled]="disabled"
[(ngModel)]="value"
(change)="onChange($event)"
(blur)="onTouched()"
/>
</label>
<p class="hiddenMessage" [class.hideTheMessage]="!isSecretValue" aria-hidden="true">
You unlocked the secret unicorn
rave!<span>🦄🦄🦄</span></p>
<p aria-live="assertive" class="visually-hidden">
{{isSecretValue ? "You discovered the secret unicorn rave! They're all having a party now that you summoned them by typing their name" : ""}}
</p>

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import { Component, forwardRef, Input, ChangeDetectorRef } from '@angular/core';
import {ControlValueAccessor, NG_VALUE_ACCESSOR} from '@angular/forms';
function coerceBooleanProperty(value: any): boolean {
return value != null && `${value}` !== 'false';
}
/**
* Provider Expression that allows your component to register as a ControlValueAccessor. This
* allows it to support [(ngModel)] and ngControl.
*/
export const EXAMPLE_CONTROL_VALUE_ACCESSOR: any = {
/**
* Used to provide a `ControlValueAccessor` for form controls.
*/
provide: NG_VALUE_ACCESSOR,
/**
* Allows to refer to references which are not yet defined.
* This is because it's needed to `providers` in the component but references
* the component itself. Handles circular dependency issues
*/
useExisting: forwardRef(() => ExampleInputComponent),
multi: true
};
@Component({
selector: 'app-example-input',
templateUrl: './example-input.component.html',
styleUrls: ['./example-input.component.css'],
providers: [EXAMPLE_CONTROL_VALUE_ACCESSOR]
})
export class ExampleInputComponent implements ControlValueAccessor {
@Input() placeholder: string;
private _value: any = "";
private _disabled: boolean = false;
/** The method to be called in order to update ngModel */
_controlValueAccessorChangeFn: (value: any) => void = () => {};
/**
* onTouch function registered via registerOnTouch (ControlValueAccessor).
*/
onTouched: () => any = () => {};
constructor(private _changeDetector: ChangeDetectorRef) { }
get isSecretValue() {
return /unicorns/.exec(this._value);
}
/**
* Getters and setters for internal values
*/
@Input()
get value(): any { return this._value; }
set value(newValue: any) {
if (this._value !== newValue) {
// Set this before proceeding to ensure no circular loop occurs with selection.
this._value = newValue;
}
}
@Input()
get disabled(): boolean { return this._disabled; }
set disabled(value) {
this._disabled = coerceBooleanProperty(value);
}
onChange(event: any) {
this._controlValueAccessorChangeFn(event.target.value);
}
/**
* Methods from the ControlValueAccessor
*/
writeValue(value: any) {
this.value = value;
this._changeDetector.markForCheck();
}
registerOnChange(fn: (value: any) => void) {
this._controlValueAccessorChangeFn = fn;
}
registerOnTouched(fn: any) {
this.onTouched = fn;
}
// Optional
setDisabledState(isDisabled: boolean) {
this.disabled = isDisabled;
this._changeDetector.markForCheck();
}
}

8
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<html>
<head>
<title>Angular App</title>
</head>
<body>
<my-app>loading</my-app>
</body>
</html>

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// Karma configuration file, see link for more information
// https://karma-runner.github.io/1.0/config/configuration-file.html
module.exports = function (config) {
config.set({
basePath: '',
frameworks: ['jasmine', '@angular-devkit/build-angular'],
plugins: [
require('karma-jasmine'),
require('karma-chrome-launcher'),
require('karma-jasmine-html-reporter'),
require('karma-coverage-istanbul-reporter'),
require('@angular-devkit/build-angular/plugins/karma')
],
client: {
clearContext: false // leave Jasmine Spec Runner output visible in browser
},
coverageIstanbulReporter: {
dir: require('path').join(__dirname, './coverage/my-app'),
reports: ['html', 'lcovonly', 'text-summary'],
fixWebpackSourcePaths: true
},
reporters: ['progress', 'kjhtml'],
port: 9876,
colors: true,
logLevel: config.LOG_INFO,
autoWatch: true,
browsers: ['Chrome'],
singleRun: false,
restartOnFileChange: true
});
};

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import './polyfills';
import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
platformBrowserDynamic().bootstrapModule(AppModule).then(ref => {
// Ensure Angular destroys itself on hot reloads.
if (window['ngRef']) {
window['ngRef'].destroy();
}
window['ngRef'] = ref;
// Otherwise, log the boot error
}).catch(err => console.error(err));

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/**
* This file includes polyfills needed by Angular and is loaded before the app.
* You can add your own extra polyfills to this file.
*
* This file is divided into 2 sections:
* 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
* 2. Application imports. Files imported after ZoneJS that should be loaded before your main
* file.
*
* The current setup is for so-called "evergreen" browsers; the last versions of browsers that
* automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
* Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
*
* Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html
*/
/***************************************************************************************************
* BROWSER POLYFILLS
*/
/** IE9, IE10 and IE11 requires all of the following polyfills. **/
// import 'core-js/es6/symbol';
// import 'core-js/es6/object';
// import 'core-js/es6/function';
// import 'core-js/es6/parse-int';
// import 'core-js/es6/parse-float';
// import 'core-js/es6/number';
// import 'core-js/es6/math';
// import 'core-js/es6/string';
// import 'core-js/es6/date';
// import 'core-js/es6/array';
// import 'core-js/es6/regexp';
// import 'core-js/es6/map';
// import 'core-js/es6/set';
/** IE10 and IE11 requires the following for NgClass support on SVG elements */
// import 'classlist.js'; // Run `npm install --save classlist.js`.
/** IE10 and IE11 requires the following to support `@angular/animation`. */
// import 'web-animations-js'; // Run `npm install --save web-animations-js`.
/** Evergreen browsers require these. **/
// import 'core-js/es6/reflect';
// import 'core-js/es7/reflect';
/**
* Web Animations `@angular/platform-browser/animations`
* Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
* Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
*/
// import 'web-animations-js'; // Run `npm install --save web-animations-js`.
/***************************************************************************************************
* Zone JS is required by Angular itself.
*/
import 'zone.js/dist/zone'; // Included with Angular CLI.
/***************************************************************************************************
* APPLICATION IMPORTS
*/
/**
* Date, currency, decimal and percent pipes.
* Needed for: All but Chrome, Firefox, Edge, IE11 and Safari 10
*/
// import 'intl'; // Run `npm install --save intl`.

1
content/blog/angular-components-control-value-accessor/angular-value-accessor-example/src/styles.css Normal file
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@@ -0,0 +1 @@
/* Add application styles & imports to this file! */

14
content/blog/angular-components-control-value-accessor/angular-value-accessor-example/src/tsconfig.app.json Normal file
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@@ -0,0 +1,14 @@
{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/app",
"types": []
},
"files": [
"main.ts",
"polyfills.ts"
],
"include": [
"**/*.d.ts"
]
}

18
content/blog/angular-components-control-value-accessor/angular-value-accessor-example/src/tsconfig.spec.json Normal file
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@@ -0,0 +1,18 @@
{
"extends": "../tsconfig.json",
"compilerOptions": {
"outDir": "../out-tsc/spec",
"types": [
"jasmine",
"node"
]
},
"files": [
"test.ts",
"polyfills.ts"
],
"include": [
"**/*.spec.ts",
"**/*.d.ts"
]
}

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{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"downlevelIteration": true,
"experimentalDecorators": true,
"module": "esnext",
"moduleResolution": "node",
"importHelpers": true,
"target": "es2015",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2018",
"dom"
]
},
"angularCompilerOptions": {
"enableIvy": true,
"fullTemplateTypeCheck": true,
"strictInjectionParameters": true
}
}

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content/blog/angular-components-control-value-accessor/index.md
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@@ -70,7 +70,7 @@ export class ExampleInputComponent {
With only a bit of CSS, we have a visually appealing, A11Y friendly, and quirky input component. Look, it even wiggles the unicorns!
<iframe src="https://stackblitz.com/edit/angular-unicorns-text-input?embed=1&file=src/app/app.component.ts" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
<iframe src="https://stackblitz.com/github/unicorn-utterances/unicorn-utterances/tree/local-code/content/blog/angular-components-control-value-accessor/angular-unicorns-text-input?embed=1&file=src/app/app.component.ts" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
Now, this component is far from feature complete. There's no way to `disable` the input, there's no way to extract data out from the typed input, there's not a lot of functionality you'd typically expect to see from an input component. Let's change that.
@@ -303,7 +303,7 @@ Finally, you can pass these options to `ngModel` and `formControl` (or even `for
If done properly, you should see something like this:
<iframe src="https://stackblitz.com/edit/angular-value-accessor-example?embed=1&file=src/app/app.component.ts" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
<iframe src="https://stackblitz.com/github/unicorn-utterances/unicorn-utterances/tree/local-code/content/blog/angular-components-control-value-accessor/angular-value-accessor-example?embed=1&file=src/app/app.component.ts" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
# Form Control Classes
@@ -407,7 +407,7 @@ export class AppComponent {
}
```
<iframe src="https://stackblitz.com/edit/angular-value-accessor-dep-inject?embed=1&file=src/app/app.component.ts" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
<iframe src="https://stackblitz.com/github/unicorn-utterances/unicorn-utterances/tree/local-code/content/blog/angular-components-control-value-accessor/angular-value-accessor-dep-inject?embed=1&file=src/app/app.component.ts" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
Not only do you have [a wide range of Angular-built validators at your disposal](https://angular.io/api/forms/Validators), but you're even able to [make your own validator](https://angular.io/api/forms/Validator)!