61 lines
1.9 KiB
TypeScript
61 lines
1.9 KiB
TypeScript
import { ChevronLeftIcon, ChevronRightIcon } from '@heroicons/react/solid'
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import clsx from 'clsx'
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import { throttle } from 'lodash'
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import { ReactNode, useRef, useState, useEffect } from 'react'
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import { Row } from './layout/row'
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export function Carousel(props: { children: ReactNode; className?: string }) {
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const { children, className } = props
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const ref = useRef<HTMLDivElement>(null)
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const th = (f: () => any) => throttle(f, 500, { trailing: false })
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const scrollLeft = th(() =>
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ref.current?.scrollBy({ left: -ref.current.clientWidth })
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)
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const scrollRight = th(() =>
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ref.current?.scrollBy({ left: ref.current.clientWidth })
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)
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const [atFront, setAtFront] = useState(true)
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const [atBack, setAtBack] = useState(false)
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const onScroll = throttle(() => {
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if (ref.current) {
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const { scrollLeft, clientWidth, scrollWidth } = ref.current
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setAtFront(scrollLeft < 80)
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setAtBack(scrollWidth - (clientWidth + scrollLeft) < 80)
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}
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}, 500)
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// eslint-disable-next-line react-hooks/exhaustive-deps
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useEffect(onScroll, [])
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return (
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<div className={clsx('relative', className)}>
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<Row
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className="scrollbar-hide w-full gap-4 overflow-x-auto scroll-smooth"
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ref={ref}
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onScroll={onScroll}
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>
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{children}
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</Row>
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{!atFront && (
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<div
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className="absolute left-0 top-0 bottom-0 z-10 flex w-10 cursor-pointer items-center justify-center hover:bg-indigo-100/30"
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onMouseDown={scrollLeft}
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>
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<ChevronLeftIcon className="h-7 w-7 rounded-full bg-indigo-50 text-indigo-700" />
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</div>
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)}
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{!atBack && (
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<div
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className="absolute right-0 top-0 bottom-0 z-10 flex w-10 cursor-pointer items-center justify-center hover:bg-indigo-100/30"
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onMouseDown={scrollRight}
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>
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<ChevronRightIcon className="h-7 w-7 rounded-full bg-indigo-50 text-indigo-700" />
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</div>
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)}
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</div>
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)
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}
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