Carousel Styles
A carousel with motion and swipe built using Embla.
Sizes
To set the size of the items, you can use the basis
utility class on the <CarouselItem />
.
Spacing
To set the spacing between the items, we use a pl-[VALUE]
utility on the <CarouselItem />
and a negative -ml-[VALUE]
on the <CarouselContent />
.
Why: I tried to use the gap
property or a grid
layout on the <CarouselContent />
but it required a lot of math and mental effort to get the
spacing right. I found pl-[VALUE]
and -ml-[VALUE]
utilities much easier to
use.
You can always adjust this in your own project if you need to.
Orientation
Use the orientation
prop to set the orientation of the carousel.
Options
You can pass options to the carousel using the opts
prop. See the Embla Carousel docs for more information.
API
Use a state and the setApi
props to get an instance of the carousel API.
Events
You can listen to events using the api instance from setApi
.
import { type CarouselApi } from "@/components/ui/carousel"
export function Example() {
const [api, setApi] = React.useState<CarouselApi>()
React.useEffect(() => {
if (!api) {
return
}
api.on("select", () => {
// Do something on select.
})
}, [api])
return (
<Carousel setApi={setApi}>
<CarouselContent>
<CarouselItem>...</CarouselItem>
<CarouselItem>...</CarouselItem>
<CarouselItem>...</CarouselItem>
</CarouselContent>
</Carousel>
)
}
See the Embla Carousel docs for more information on using events.
Plugins
You can use the plugins
prop to add plugins to the carousel.
See the Embla Carousel docs for more information on using plugins.
Installation
Install the following dependencies:
npm install embla-carousel-react
Copy and paste the following code into your project.
"use client";
import * as React from "react";
import { Button } from "@/components/ui/button";
import useEmblaCarousel, { type UseEmblaCarouselType } from "embla-carousel-react";
import { ArrowLeft, ArrowRight } from "lucide-react";
import { cn } from "@/lib/utils";
type CarouselApi = UseEmblaCarouselType[1]
type UseCarouselParameters = Parameters<typeof useEmblaCarousel>
type CarouselOptions = UseCarouselParameters[0]
type CarouselPlugin = UseCarouselParameters[1]
type CarouselProps = {
opts?: CarouselOptions
plugins?: CarouselPlugin
orientation?: "horizontal" | "vertical"
setApi?: (api: CarouselApi) => void
}
type CarouselContextProps = {
carouselRef: ReturnType<typeof useEmblaCarousel>[0]
api: ReturnType<typeof useEmblaCarousel>[1]
scrollPrev: () => void
scrollNext: () => void
canScrollPrev: boolean
canScrollNext: boolean
} & CarouselProps
const CarouselContext = React.createContext<CarouselContextProps | null>(null)
function useCarousel() {
const context = React.useContext(CarouselContext)
if (!context) {
throw new Error("useCarousel must be used within a <Carousel />")
}
return context
}
const Carousel = React.forwardRef<
HTMLDivElement,
React.HTMLAttributes<HTMLDivElement> & CarouselProps
>(
(
{
orientation = "horizontal",
opts,
setApi,
plugins,
className,
children,
...props
},
ref
) => {
const [carouselRef, api] = useEmblaCarousel(
{
...opts,
axis: orientation === "horizontal" ? "x" : "y",
},
plugins
)
const [canScrollPrev, setCanScrollPrev] = React.useState(false)
const [canScrollNext, setCanScrollNext] = React.useState(false)
const onSelect = React.useCallback((api: CarouselApi) => {
if (!api) {
return
}
setCanScrollPrev(api.canScrollPrev())
setCanScrollNext(api.canScrollNext())
}, [])
const scrollPrev = React.useCallback(() => {
api?.scrollPrev()
}, [api])
const scrollNext = React.useCallback(() => {
api?.scrollNext()
}, [api])
const handleKeyDown = React.useCallback(
(event: React.KeyboardEvent<HTMLDivElement>) => {
if (event.key === "ArrowLeft") {
event.preventDefault()
scrollPrev()
} else if (event.key === "ArrowRight") {
event.preventDefault()
scrollNext()
}
},
[scrollPrev, scrollNext]
)
React.useEffect(() => {
if (!api || !setApi) {
return
}
setApi(api)
}, [api, setApi])
React.useEffect(() => {
if (!api) {
return
}
onSelect(api)
api.on("reInit", onSelect)
api.on("select", onSelect)
return () => {
api?.off("select", onSelect)
}
}, [api, onSelect])
return (
<CarouselContext.Provider
value={{
carouselRef,
api: api,
opts,
orientation:
orientation || (opts?.axis === "y" ? "vertical" : "horizontal"),
scrollPrev,
scrollNext,
canScrollPrev,
canScrollNext,
}}
>
<div
ref={ref}
onKeyDownCapture={handleKeyDown}
className={cn("relative", className)}
role="region"
aria-roledescription="carousel"
{...props}
>
{children}
</div>
</CarouselContext.Provider>
)
}
)
Carousel.displayName = "Carousel"
const CarouselContent = React.forwardRef<
HTMLDivElement,
React.HTMLAttributes<HTMLDivElement>
>(({ className, ...props }, ref) => {
const { carouselRef, orientation } = useCarousel()
return (
<div ref={carouselRef} className="overflow-hidden">
<div
ref={ref}
className={cn(
"flex",
orientation === "horizontal" ? "-ml-4" : "-mt-4 flex-col",
className
)}
{...props}
/>
</div>
)
})
CarouselContent.displayName = "CarouselContent"
const CarouselItem = React.forwardRef<
HTMLDivElement,
React.HTMLAttributes<HTMLDivElement>
>(({ className, ...props }, ref) => {
const { orientation } = useCarousel()
return (
<div
ref={ref}
role="group"
aria-roledescription="slide"
className={cn(
"min-w-0 shrink-0 grow-0 basis-full",
orientation === "horizontal" ? "pl-4" : "pt-4",
className
)}
{...props}
/>
)
})
CarouselItem.displayName = "CarouselItem"
const CarouselPrevious = React.forwardRef<
HTMLButtonElement,
React.ComponentProps<typeof Button>
>(({ className, variant = "outline", size = "icon", ...props }, ref) => {
const { orientation, scrollPrev, canScrollPrev } = useCarousel()
return (
<Button
ref={ref}
variant={variant}
size={size}
className={cn(
"absolute size-8 rounded-full",
orientation === "horizontal"
? "left-4 top-1/2 -translate-y-1/2"
: "top-4 left-1/2 -translate-x-1/2 rotate-90",
className
)}
disabled={!canScrollPrev}
onClick={scrollPrev}
{...props}
>
<ArrowLeft className="size-4" />
<span className="sr-only">Previous slide</span>
</Button>
)
})
CarouselPrevious.displayName = "CarouselPrevious"
const CarouselNext = React.forwardRef<
HTMLButtonElement,
React.ComponentProps<typeof Button>
>(({ className, variant = "outline", size = "icon", ...props }, ref) => {
const { orientation, scrollNext, canScrollNext } = useCarousel()
return (
<Button
ref={ref}
variant={variant}
size={size}
className={cn(
"absolute size-8 rounded-full",
orientation === "horizontal"
? "right-4 top-1/2 -translate-y-1/2"
: "bottom-4 left-1/2 -translate-x-1/2 rotate-90",
className
)}
disabled={!canScrollNext}
onClick={scrollNext}
{...props}
>
<ArrowRight className="size-4" />
<span className="sr-only">Next slide</span>
</Button>
)
})
CarouselNext.displayName = "CarouselNext"
export {
type CarouselApi,
Carousel,
CarouselContent,
CarouselItem,
CarouselPrevious,
CarouselNext,
}