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August 28, 2017 19:19
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Importing and stamping templates with ES6 and lit-html
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <body> | |
| <vanilla-lit tagline="Luke"></vanilla-lit> | |
| <script src="bundle.js"></script> | |
| </body> | |
| </html> |
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| import {html} from 'lit-html'; | |
| import {render} from 'lit-html/lib/lit-extended'; | |
| import {PropertyAccessors} from '@polymer/polymer/lib/mixins/property-accessors'; | |
| import * as templateFactory from './template-factory'; | |
| export default class VanillaLitComponent extends PropertyAccessors(HTMLElement) { | |
| constructor() { | |
| super(); | |
| this._template = templateFactory.templateOne; | |
| } | |
| static get observedAttributes() { | |
| return [ | |
| 'tagline', | |
| '_template' | |
| ]; | |
| } | |
| connectedCallback() { | |
| this._enableProperties(); | |
| } | |
| _propertiesChanged() { | |
| render( | |
| html`${this._template.call(this)} | |
| <br> | |
| <button on-click=${this.__switchTemplate}>Click me!</button>`, | |
| this); | |
| } | |
| __switchTemplate() { | |
| this._template = templateFactory.templateTwo | |
| } | |
| } | |
| VanillaLitComponent.createPropertiesForAttributes(); | |
| window.customElements.define('vanilla-lit', VanillaLitComponent); |
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| { | |
| "name": "vanilla-lit", | |
| "version": "0.0.0", | |
| "description": "Almost-Vanilla custom element with lit-html and importing templates", | |
| "main": "index.js", | |
| "author": "tpluscode", | |
| "scripts": { | |
| "start": "http-server", | |
| "build": "webpack --optimize-minimize", | |
| "dev": "webpack -w" | |
| }, | |
| "license": "MIT", | |
| "dependencies": { | |
| "@polymer/polymer": "next", | |
| "lit-html": "0.6.0" | |
| }, | |
| "devDependencies": { | |
| "http-server": "^0.10.0", | |
| "webpack": "3.5.5" | |
| } | |
| } |
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| import {html} from 'lit-html'; | |
| export function templateOne() { | |
| return html`I'm the default template<br>I say that ${this.getAttribute('tagline')}`; | |
| } | |
| export function templateTwo() { | |
| return html`I appear when you click that button`; | |
| } |
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| const path = require('path'); | |
| module.exports = { | |
| entry: './index.js', | |
| output: { | |
| path: path.resolve(__dirname, 'src'), | |
| filename: 'bundle.js' | |
| } | |
| }; |
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