shadcn-ui/apps/v4/examples/base/ui/resizable.tsx

"use client"

import * as React from "react"
import { cn } from "@/examples/base/lib/utils"
import * as ResizablePrimitive from "react-resizable-panels"

function ResizablePanelGroup({
  className,
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.PanelGroup>) {
  return (
    <ResizablePrimitive.PanelGroup
      data-slot="resizable-panel-group"
      className={cn(
        "flex h-full w-full data-[panel-group-direction=vertical]:flex-col",
        className
      )}
      {...props}
    />
  )
}

function ResizablePanel({
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.Panel>) {
  return <ResizablePrimitive.Panel data-slot="resizable-panel" {...props} />
}

function ResizableHandle({
  withHandle,
  className,
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.PanelResizeHandle> & {
  withHandle?: boolean
}) {
  return (
    <ResizablePrimitive.PanelResizeHandle
      data-slot="resizable-handle"
      className={cn(
        "bg-border focus-visible:ring-ring relative flex w-px items-center justify-center after:absolute after:inset-y-0 after:left-1/2 after:w-1 after:-translate-x-1/2 focus-visible:ring-1 focus-visible:ring-offset-1 focus-visible:outline-hidden data-[panel-group-direction=vertical]:h-px data-[panel-group-direction=vertical]:w-full data-[panel-group-direction=vertical]:after:left-0 data-[panel-group-direction=vertical]:after:h-1 data-[panel-group-direction=vertical]:after:w-full data-[panel-group-direction=vertical]:after:translate-x-0 data-[panel-group-direction=vertical]:after:-translate-y-1/2 [&[data-panel-group-direction=vertical]>div]:rotate-90",
        className
      )}
      {...props}
    >
      {withHandle && (
        <div className="bg-border z-10 flex h-6 w-1 shrink-0 rounded-lg" />
      )}
    </ResizablePrimitive.PanelResizeHandle>
  )
}

export { ResizablePanelGroup, ResizablePanel, ResizableHandle }