jan/uikit/src/scroll-area/index.tsx

'use client'

import { forwardRef, ElementRef, ComponentPropsWithoutRef } from 'react'
import * as ScrollAreaPrimitive from '@radix-ui/react-scroll-area'

import { twMerge } from 'tailwind-merge'

const ScrollArea = forwardRef<
  ElementRef<typeof ScrollAreaPrimitive.Root>,
  ComponentPropsWithoutRef<typeof ScrollAreaPrimitive.Root>
>(({ className, children, ...props }, ref) => (
  <ScrollAreaPrimitive.Root
    ref={ref}
    className={twMerge('scroll-area', className)}
    {...props}
  >
    <ScrollAreaPrimitive.Viewport className="scroll-area-viewport">
      {children}
    </ScrollAreaPrimitive.Viewport>
    <ScrollBar />
    <ScrollAreaPrimitive.Corner />
  </ScrollAreaPrimitive.Root>
))
ScrollArea.displayName = ScrollAreaPrimitive.Root.displayName

const ScrollBar = forwardRef<
  ElementRef<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>,
  ComponentPropsWithoutRef<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>
>(({ className, orientation = 'vertical', ...props }, ref) => (
  <ScrollAreaPrimitive.ScrollAreaScrollbar
    ref={ref}
    orientation={orientation}
    className={twMerge(
      'scroll-bar',
      orientation === 'vertical' && 'scroll-bar-vertical',
      orientation === 'horizontal' && 'scroll-bar-vertical ',
      className
    )}
    {...props}
  >
    <ScrollAreaPrimitive.ScrollAreaThumb
      className={twMerge(
        'scroll-bar-thumb',
        orientation === 'vertical' && 'flex-1'
      )}
    />
  </ScrollAreaPrimitive.ScrollAreaScrollbar>
))
ScrollBar.displayName = ScrollAreaPrimitive.ScrollAreaScrollbar.displayName

export { ScrollArea, ScrollBar }