File size: 3,147 Bytes
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import { useRef } from 'react'
import { animated, useSprings } from '@react-spring/web'
import useMeasure from 'react-use-measure'
import { useIsomorphicLayoutEffect } from '~/hooks/useIsomorphicEffect'
import { useWindowSize } from '~/hooks/useWindowSize'
import { HomeBlockCopy } from './HomeBlockCopy'
import clsx from 'clsx'
import { section } from './shared.css'
import { bar, graphBar, sizeGraph, ssrSection } from './HomeBlockSSR.css'
const ASPECT = 259 / 140
export const HomeBlockSSR = () => {
const [measureRef, { width }] = useMeasure()
const sectionRef = useRef(null!)
const { width: windowWidth } = useWindowSize()
const maxBarHeight = width * ASPECT
const heights = [
maxBarHeight,
maxBarHeight * (90 / 259),
maxBarHeight * (71 / 259),
]
const [springs, api] = useSprings(
3,
() => ({
height: 1,
config: {
tension: 120,
friction: 100,
},
}),
[]
)
const animationHasRun = useRef(false)
useIsomorphicLayoutEffect(() => {
if (typeof IntersectionObserver === 'function') {
const handler = (entries: IntersectionObserverEntry[]) => {
if (entries[0].isIntersecting && !animationHasRun.current) {
animationHasRun.current = true
api.start(i => ({
height: heights[i],
delay: 250,
}))
}
}
const observer = new IntersectionObserver(handler)
observer.observe(sectionRef.current)
return () => {
observer.disconnect()
}
}
}, [maxBarHeight])
useIsomorphicLayoutEffect(() => {
if (animationHasRun.current) {
api.start(i => ({
height: heights[i],
delay: 250,
}))
}
}, [maxBarHeight])
const isTablet = (windowWidth ?? 0) > 768
return (
<section className={clsx(section, ssrSection)} ref={sectionRef}>
<HomeBlockCopy
subtitle="Designed with you in mind"
title={`Production ready with SSR support`}
>
<p>
Forget about useRef & useEffect to attach your animations to dom
nodes. animated takes care of it for you.{' '}
</p>
<br />
<p>
Fully written in Typescript for easy integration to your pre-existing
codebase.
</p>
<br />
<p>
Use a target for a small bundle size or omit the target and just use
the core for an even smaller package.
</p>
</HomeBlockCopy>
<div className={sizeGraph}>
<div className={graphBar}>
<h4>{`55.1kb`}</h4>
<animated.div className={bar} ref={measureRef} style={springs[0]} />
<h5>{`react-spring`}</h5>
</div>
<div className={graphBar}>
<h4>{`19.2kb`}</h4>
<animated.div className={bar} style={springs[1]} />
<h5>{isTablet ? `@react-spring/web` : 'web'}</h5>
</div>
<div className={graphBar}>
<h4>{`15.2kb`}</h4>
<animated.div className={bar} style={springs[2]} />
<h5>{isTablet ? `@react-spring/core` : 'core'}</h5>
</div>
</div>
</section>
)
}
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