Carousel

About

The carousel component is built using the Embla Carousel library.

Installation

Command

Manual

Use the JGuang UI Registry URL provided on /systems/jguang-ui#install.

Install the following dependencies:

npm install embla-carousel-react

Copy and paste the following code into your project.

View complete source: components/ui/carousel.tsx

Update the import paths to match your project setup.

Usage

import {
  Carousel,
  CarouselContent,
  CarouselItem,
  CarouselNext,
  CarouselPrevious,
} from "@/components/ui/carousel"

<Carousel>
  <CarouselContent>
    <CarouselItem>...</CarouselItem>
    <CarouselItem>...</CarouselItem>
    <CarouselItem>...</CarouselItem>
  </CarouselContent>
  <CarouselPrevious />
  <CarouselNext />
</Carousel>

Composition

Use the following composition to build a Carousel:

Carousel
├── CarouselContent
│   ├── CarouselItem
│   └── CarouselItem
├── CarouselPrevious
└── CarouselNext

Sizes

To set the size of the items, you can use the basis utility class on the ``.

// 33% of the carousel width.
<Carousel>
  <CarouselContent>
    <CarouselItem className="basis-1/3">...</CarouselItem>
    <CarouselItem className="basis-1/3">...</CarouselItem>
    <CarouselItem className="basis-1/3">...</CarouselItem>
  </CarouselContent>
</Carousel>

// 50% on small screens and 33% on larger screens.
<Carousel>
  <CarouselContent>
    <CarouselItem className="md:basis-1/2 lg:basis-1/3">...</CarouselItem>
    <CarouselItem className="md:basis-1/2 lg:basis-1/3">...</CarouselItem>
    <CarouselItem className="md:basis-1/2 lg:basis-1/3">...</CarouselItem>
  </CarouselContent>
</Carousel>

Spacing

To set the spacing between the items, we use a pl-[VALUE] utility on the and a negative `-ml-[VALUE]` on the.

<Carousel>
  <CarouselContent className="-ml-4">
    <CarouselItem className="pl-4">...</CarouselItem>
    <CarouselItem className="pl-4">...</CarouselItem>
    <CarouselItem className="pl-4">...</CarouselItem>
  </CarouselContent>
</Carousel>

<Carousel>
  <CarouselContent className="-ml-2 md:-ml-4">
    <CarouselItem className="pl-2 md:pl-4">...</CarouselItem>
    <CarouselItem className="pl-2 md:pl-4">...</CarouselItem>
    <CarouselItem className="pl-2 md:pl-4">...</CarouselItem>
  </CarouselContent>
</Carousel>

Orientation

Use the orientation prop to set the orientation of the carousel.

<Carousel orientation="vertical | horizontal">
  <CarouselContent>
    <CarouselItem>...</CarouselItem>
    <CarouselItem>...</CarouselItem>
    <CarouselItem>...</CarouselItem>
  </CarouselContent>
</Carousel>

Options

You can pass options to the carousel using the opts prop. See the Embla Carousel docs for more information.

<Carousel
  opts={{
    align: "start",
    loop: true,
  }}
>
  <CarouselContent>
    <CarouselItem>...</CarouselItem>
    <CarouselItem>...</CarouselItem>
    <CarouselItem>...</CarouselItem>
  </CarouselContent>
</Carousel>

API

Use a state and the setApi props to get an instance of the carousel API.

import { type CarouselApi } from "@/components/ui/carousel"

export function Example() {
  const [api, setApi] = React.useState<CarouselApi>()
  const [current, setCurrent] = React.useState(0)
  const [count, setCount] = React.useState(0)

  React.useEffect(() => {
    if (!api) {
      return
    }

    setCount(api.scrollSnapList().length)
    setCurrent(api.selectedScrollSnap() + 1)

    api.on("select", () => {
      setCurrent(api.selectedScrollSnap() + 1)
    })
  }, [api])

  return (
    <Carousel setApi={setApi}>
      <CarouselContent>
        <CarouselItem>...</CarouselItem>
        <CarouselItem>...</CarouselItem>
        <CarouselItem>...</CarouselItem>
      </CarouselContent>
    </Carousel>
  )
}

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.

import Autoplay from "embla-carousel-autoplay"

export function Example() {
  return (
    <Carousel
      plugins={[
        Autoplay({
          delay: 2000,
        }),
      ]}
    >
      // ...
    </Carousel>
  )
}

RTL

To enable RTL support in JGuang UI, see the RTL configuration guide.

When localizing the carousel for RTL languages, you need to set the direction option in the opts prop to match the text direction. This ensures the carousel scrolls in the correct direction.

<Carousel
  dir={dir}
  opts={{
    direction: dir,
  }}
>
  <CarouselContent>
    <CarouselItem>...</CarouselItem>
    <CarouselItem>...</CarouselItem>
    <CarouselItem>...</CarouselItem>
  </CarouselContent>
  <CarouselPrevious className="rtl:rotate-180" />
  <CarouselNext className="rtl:rotate-180" />
</Carousel>

The direction option accepts "ltr" or "rtl" and should match the dir prop value. You may also want to rotate the navigation buttons using the rtl:rotate-180 class to ensure they point in the correct direction.

API Reference

See the Embla Carousel docs for more information on props and plugins.