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import { useEffect, useRef, useState } from 'react'
import { SandpackPreview, SandpackProvider } from '@codesandbox/sandpack-react'
import * as Accordion from '@radix-ui/react-accordion'
import { animated, useSpring } from '@react-spring/web'
import { Button } from '../Buttons/Button'
import { LIVE_PREVIEW_STYLES, LivePreviewStyles } from './LivePreviewStyles'
import { LIVE_PREVIEW_DEPS } from './LivePreviewDeps'
import { pre, showLineNumbers as showLineNumbersClass } from './Pre.css'
import {
accordionContent,
accordionHeader,
accordionRoot,
accordionTrigger,
isDemo,
largeSize,
previewContainer,
} from './LivePreview.css'
import clsx from 'clsx'
export interface LivePreviewProps {
code: string
preProps: {
id?: string
showLineNumbers?: boolean
['data-showing-lines']?: boolean
}
showCode?: boolean
defaultOpen?: boolean
className?: string
template?: keyof LivePreviewStyles
}
export const LivePreview = ({
code,
showCode = true,
preProps: { showLineNumbers, ...restPreProps },
className,
defaultOpen = false,
template = 'spring',
}: LivePreviewProps) => {
const [value, setValue] = useState(defaultOpen ? 'code' : '')
const preRef = useRef<HTMLPreElement>(null!)
const codeTemplate = `
import '/index.css'
${code}
`
const handleValueChange = (value: string) => setValue(value)
const [styles, api] = useSpring(
() => ({
height: 0,
}),
[]
)
const isMounted = useRef(false)
useEffect(() => {
api.start({
height: value === '' ? 0 : preRef.current.getBoundingClientRect().height,
immediate: !isMounted.current,
})
isMounted.current = true
}, [value, api])
return (
<div
className={clsx(
previewContainer,
className,
template !== 'spring' && isDemo,
(template === 'configPlayground' ||
template === 'imperative' ||
template === 'r3f') &&
largeSize
)}
>
<SandpackProvider
template="react"
files={{
'/App.js': {
code: codeTemplate,
},
'/index.css': {
code: LIVE_PREVIEW_STYLES[template],
},
}}
customSetup={{
dependencies: {
'@react-spring/web': '*',
...LIVE_PREVIEW_DEPS[template],
},
}}
options={{
classes: {
'sp-wrapper': 'preview__wrapper',
'sp-layout': 'preview__layout',
'sp-stack': 'preview__stack',
'sp-preview-container': 'preview__container',
'sp-preview-iframe': 'preview__iframe',
'sp-preview-actions': 'preview__actions',
'sp-overlay': 'preview__overlay',
'sp-button': 'preview__button',
},
}}
>
<SandpackPreview />
</SandpackProvider>
{showCode ? (
<Accordion.Root
type="single"
collapsible
value={value}
className={accordionRoot}
onValueChange={handleValueChange}
>
<Accordion.Item value="code">
<Accordion.Header className={accordionHeader}>
<Accordion.Trigger asChild>
<Button className={accordionTrigger}>
{value === '' ? 'Show Code' : 'Hide Code'}
</Button>
</Accordion.Trigger>
</Accordion.Header>
<AccordionContent
className={accordionContent}
style={styles}
forceMount
>
<pre
ref={preRef}
className={clsx(pre, showLineNumbers && showLineNumbersClass)}
{...restPreProps}
/>
</AccordionContent>
</Accordion.Item>
</Accordion.Root>
) : null}
</div>
)
}
const AccordionContent = animated(Accordion.Content)
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