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simple-greeter.ts
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simple-greeter.ts
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/**
* @license
* Copyright 2022 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
*/
import {LitElement, html, css} from 'lit';
import {customElement, property} from 'lit/decorators.js';
import type React from 'react';
@customElement('simple-greeter')
export class SimpleGreeter extends LitElement {
static styles = css`
div {
border: 1px solid black;
padding: 1rem;
display: flex;
flex-direction: column;
align-items: center;
}
@media (prefers-color-scheme: dark) {
div {
border-color: white;
}
}
span {
color: rebeccapurple;
}
p {
font-family: sans-serif;
}
`;
@property()
name = 'Somebody';
@property({type: Number})
count = 0;
render() {
return html`
<div>
<h1>Hello, <span>${this.name}</span>!</h1>
<p>Count: ${this.count}</p>
<button @click=${() => this.count++}>++</button>
</div>
`;
}
}
declare global {
interface HTMLElementTagNameMap {
'simple-greeter': SimpleGreeter;
}
namespace JSX {
interface IntrinsicElements {
'simple-greeter':
| React.DetailedHTMLProps<
React.HTMLAttributes<SimpleGreeter>,
SimpleGreeter
>
| Partial<SimpleGreeter>;
}
}
}