test-embed.html at main · dai.bsky.social/rscexplorer

A tool for people curious about the React Server Components protocol
rscexplorer / test-embed.html
at main 4.1 kB view raw
  1<!doctype html>
  2<html lang="en">
  3  <head>
  4    <meta charset="UTF-8" />
  5    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  6    <title>RSC Explorer Embeds</title>
  7    <style>
  8      body {
  9        font-family: system-ui, sans-serif;
 10        max-width: 900px;
 11        margin: 0 auto;
 12        padding: 20px;
 13        line-height: 1.6;
 14      }
 15      h2 {
 16        margin-top: 40px;
 17        border-bottom: 1px solid #eee;
 18        padding-bottom: 8px;
 19      }
 20      iframe {
 21        width: 100%;
 22        height: 500px;
 23        border: none;
 24        border-radius: 8px;
 25        margin-bottom: 40px;
 26      }
 27    </style>
 28  </head>
 29  <body>
 30    <h1>RSC Explorer Embeds</h1>
 31    <p>Multiple embedded RSC explorers demonstrating different React Server Components patterns.</p>
 32
 33    <h2>Hello World</h2>
 34    <p>The simplest possible server component.</p>
 35    <iframe id="hello"></iframe>
 36
 37    <h2>Counter</h2>
 38    <p>A client component with state, rendered from a server component.</p>
 39    <iframe id="counter"></iframe>
 40
 41    <h2>Async Component</h2>
 42    <p>Server components can be async and use Suspense for loading states.</p>
 43    <iframe id="async"></iframe>
 44
 45    <h2>Form Action</h2>
 46    <p>Server actions handle form submissions with useActionState.</p>
 47    <iframe id="form"></iframe>
 48
 49    <script>
 50      function encodeCode(code) {
 51        const json = JSON.stringify(code);
 52        return encodeURIComponent(btoa(unescape(encodeURIComponent(json))));
 53      }
 54
 55      function setEmbed(id, code) {
 56        document.getElementById(id).src = `/embed.html?c=${encodeCode(code)}`;
 57      }
 58
 59      setEmbed("hello", {
 60        server: `export default function App() {
 61  return <h1>Hello World</h1>
 62}`,
 63        client: `'use client'`,
 64      });
 65
 66      setEmbed("counter", {
 67        server: `import { Counter } from './client'
 68
 69export default function App() {
 70  return (
 71    <div>
 72      <h1>Counter</h1>
 73      <Counter initialCount={0} />
 74    </div>
 75  )
 76}`,
 77        client: `'use client'
 78
 79import { useState } from 'react'
 80
 81export function Counter({ initialCount }) {
 82  const [count, setCount] = useState(initialCount)
 83
 84  return (
 85    <div>
 86      <p>Count: {count}</p>
 87      <div style={{ display: 'flex', gap: 8 }}>
 88        <button onClick={() => setCount(c => c - 1)}>−</button>
 89        <button onClick={() => setCount(c => c + 1)}>+</button>
 90      </div>
 91    </div>
 92  )
 93}`,
 94      });
 95
 96      setEmbed("async", {
 97        server: `import { Suspense } from 'react'
 98
 99export default function App() {
100  return (
101    <div>
102      <h1>Async Component</h1>
103      <Suspense fallback={<p>Loading...</p>}>
104        <SlowComponent />
105      </Suspense>
106    </div>
107  )
108}
109
110async function SlowComponent() {
111  await new Promise(r => setTimeout(r, 500))
112  return <p>Data loaded!</p>
113}`,
114        client: `'use client'`,
115      });
116
117      setEmbed("form", {
118        server: `import { Form } from './client'
119
120export default function App() {
121  return (
122    <div>
123      <h1>Form Action</h1>
124      <Form greetAction={greet} />
125    </div>
126  )
127}
128
129async function greet(prevState, formData) {
130  'use server'
131  await new Promise(r => setTimeout(r, 500))
132  const name = formData.get('name')
133  if (!name) return { message: null, error: 'Please enter a name' }
134  return { message: \`Hello, \${name}!\`, error: null }
135}`,
136        client: `'use client'
137
138import { useActionState } from 'react'
139
140export function Form({ greetAction }) {
141  const [state, formAction, isPending] = useActionState(greetAction, {
142    message: null,
143    error: null
144  })
145
146  return (
147    <form action={formAction}>
148      <div style={{ display: 'flex', gap: 8 }}>
149        <input
150          name="name"
151          placeholder="Enter your name"
152          style={{ padding: '8px 12px', borderRadius: 4, border: '1px solid #ccc' }}
153        />
154        <button disabled={isPending}>
155          {isPending ? 'Sending...' : 'Greet'}
156        </button>
157      </div>
158      {state.error && <p style={{ color: 'red', marginTop: 8 }}>{state.error}</p>}
159      {state.message && <p style={{ color: 'green', marginTop: 8 }}>{state.message}</p>}
160    </form>
161  )
162}`,
163      });
164    </script>
165  </body>
166</html>