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Support tailwind #47

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merged 1 commit into from
Feb 10, 2024
Merged

Support tailwind #47

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72 changes: 38 additions & 34 deletions lib/core.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,6 @@ import { transform } from 'sucrase'
import { init, parse } from 'es-module-lexer'

let esModuleLexerInit

const isRelative = s => s.startsWith('./')

function transformCode(_code, getModuleUrl, externals) {
Expand All @@ -25,13 +24,11 @@ function replaceImports(source, getModuleUrl, externals) {

// start, end, statementStart, statementEnd, assertion, name
imports.forEach(({ s, e, ss, se, a, n }) => {
let isCss = false
code += source.slice(lastIndex, ss) // content from last import to beginning of this line


// handle imports
if (n.endsWith('.css')) {
isCss = true
// Map './styles.css' -> '@styles.css', and collect it
const cssPath = `${'@' + n.slice(2)}`
cssImports.push(cssPath)
Expand Down Expand Up @@ -85,12 +82,12 @@ function createRenderer(createModule_, getModuleUrl) {

async function render(files) {
const mod = await createModule_(files, { getModuleUrl })
const React_ = await self.importShim('react')
const ReactDOM_ = await self.importShim('react-dom')
const ReactMod = await self.importShim('react')
const ReactDOMMod = await self.importShim('react-dom')

const _jsx = React_.createElement
const root = document.getElementById('root')
class ErrorBoundary extends React_.Component {
const _jsx = ReactMod.createElement
const root = document.getElementById('__reactRoot')
class ErrorBoundary extends ReactMod.Component {
constructor(props) {
super(props)
this.state = { error: null }
Expand All @@ -106,25 +103,25 @@ function createRenderer(createModule_, getModuleUrl) {
}
}

const isReact18 = !!ReactDOM_.createRoot
const isReact18 = !!ReactDOMMod.createRoot
if (isReact18 && !reactRoot) {
reactRoot = ReactDOM_.createRoot(root)
reactRoot = ReactDOMMod.createRoot(root)
}
const Component = mod.default
const element = _jsx(ErrorBoundary, null, _jsx(Component))
if (isReact18) {
reactRoot.render(element)
} else {
ReactDOM_.render(element, root)
ReactDOMMod.render(element, root)
}
}

return render
}

function createMainScript({ uid }) {
const code = (
`'use strict';
const code = (`\
'use strict';
const _createModule = ${createModule.toString()};
const _createRenderer = ${createRenderer.toString()};

Expand All @@ -137,21 +134,27 @@ globalThis.__render__ = _createRenderer(_createModule, getModuleUrl);
}

function createEsShimOptionsScript() {
return `window.esmsInitOptions = {
polyfillEnable: ['css-modules', 'json-modules'],
onerror: error => console.log(error),
}`
return `\
window.esmsInitOptions = {
polyfillEnable: ['css-modules', 'json-modules'],
onerror: error => console.log(error),
}`
}

function useScript() {
return useRef(typeof window !== 'undefined' ? document.createElement('script') : null)
}

function setScript(scriptRef, scriptContent, { type } = {}) {
function createScript(scriptRef, { content, src, type } = {}) {
const script = scriptRef.current
if (type) script.type = type

script.src = `data:text/javascript;utf-8,${encodeURIComponent(scriptContent)}`
if (content) {
script.src = `data:text/javascript;utf-8,${encodeURIComponent(content)}`
}
if (src) {
script.src = src
}
return script
}

Expand All @@ -160,7 +163,8 @@ function useLiveCode({ getModuleUrl }) {
const [error, setError] = useState()
const rerender = useState({})[1]
const appScriptRef = useScript()
const esShimOptionsScript = useScript()
const esShimOptionsScriptRef = useScript()
const tailwindcssScriptRef = useScript()
const uid = useId()

// Let getModuleUrl executed on parent window side since it might involve
Expand All @@ -185,28 +189,28 @@ function useLiveCode({ getModuleUrl }) {
if (!iframe || !iframe.contentDocument) return

const doc = iframe.contentDocument
const body = doc.body
const div = document.createElement('div')
div.id = 'root'
div.id = '__reactRoot'

const appScriptContent = createMainScript({ uid })
const scriptOptionsContent = createEsShimOptionsScript()

const esmShimOptionsScript = setScript(esShimOptionsScript, scriptOptionsContent)
const appScript = setScript(appScriptRef, appScriptContent, { type: 'module' })
// const script = scriptRef.current
// script.type = 'module'
// script.id = 'main'
// script.src = `data:text/javascript;utf-8,${encodeURIComponent(scriptContent)}`

doc.body.appendChild(div)
doc.body.appendChild(esmShimOptionsScript)
doc.body.appendChild(appScript)
const esmShimOptionsScript = createScript(esShimOptionsScriptRef, { content: scriptOptionsContent })
const appScript = createScript(appScriptRef, { content: appScriptContent, type: 'module' })
const tailwindScript = createScript(tailwindcssScriptRef, { src: 'https://cdn.tailwindcss.com' })

body.appendChild(div)
body.appendChild(esmShimOptionsScript)
body.appendChild(appScript)
body.appendChild(tailwindScript)

return () => {
if (!iframe || !iframe.contentDocument) return
doc.body.removeChild(div)
doc.body.removeChild(esmShimOptionsScript)
doc.body.removeChild(appScript)
body.removeChild(div)
body.removeChild(esmShimOptionsScript)
body.removeChild(appScript)
body.removeChild(tailwindScript)
}
}, [])

Expand Down
10 changes: 4 additions & 6 deletions site/app/page.js
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,10 @@ const defaultFiles = {
const { data } = useSWR('world', key => key)
return (
<div>
<h2 className='title'><Text /> hello <b>{data}</b></h2>
<h2 class="text-3xl">
hello <Text /> <span class="font-bold underline">{data}</span>
</h2>

<p>Volume {Array(num % 6).fill('●').join('')}</p>
<button className='button' onClick={() => inc(num + 1)}>increase</button>
</div>
Expand Down Expand Up @@ -59,7 +62,6 @@ const defaultFiles = {
.button:active {
background: #ccc;
color: #222;

}
`
}
Expand Down Expand Up @@ -122,10 +124,6 @@ export default function Page() {
setError(err)
}}
getModuleUrl={(m) => {
if (m === 'react' || m === 'react-dom' || m === 'swr') {
return `${CDN_HOST}/${m}@latest`
}

return `${CDN_HOST}/${m}`
}}
/>
Expand Down
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