quadratic/ui

Resizable

Accessible resizable panel groups and layouts with keyboard support.

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Installation

Install the following dependencies:

pnpm add react-resizable-panels

Copy and paste the following code into your project.

"use client";

import { GripVertical } from "lucide-react";
import * as ResizablePrimitive from "react-resizable-panels";

import { cn } from "~/utils/tailwind";

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

const ResizablePanel = ResizablePrimitive.Panel;

function ResizableHandle({
  withHandle = false,
  className,
  ...props
}: React.ComponentProps<typeof ResizablePrimitive.PanelResizeHandle> & {
  withHandle?: boolean;
}) {
  return (
    <ResizablePrimitive.PanelResizeHandle
      className={cn(
        "relative flex w-0.25 items-center justify-center bg-border",
        "after:absolute after:inset-y-0 after:left-1/2 after:w-1 after:-translate-x-1/2",
        "focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring focus-visible:ring-offset-1",
        "data-[panel-group-direction=vertical]:h-0.25 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-y-1/2 data-[panel-group-direction=vertical]:after:translate-x-0",
        "[&[data-panel-group-direction=vertical]>div]:rotate-90",
        className,
      )}
      {...props}
    >
      {withHandle && (
        <div className="z-10 flex h-4 w-3 items-center justify-center rounded-0.5 border bg-border">
          <GripVertical className="size-2.5" />
        </div>
      )}
    </ResizablePrimitive.PanelResizeHandle>
  );
}

export { ResizablePanelGroup, ResizablePanel, ResizableHandle };

Update the import paths to match your project setup.

Usage

import {
  ResizableHandle,
  ResizablePanel,
  ResizablePanelGroup,
} from "~/components/ui/Resizable";
<ResizablePanelGroup direction="horizontal">
  <ResizablePanel>One</ResizablePanel>
  <ResizableHandle />
  <ResizablePanel>Two</ResizablePanel>
</ResizablePanelGroup>

Examples

Vertical

Top
Bottom

No Handle

Remove the withHandle prop from <ResizableHandle /> to hide the handle.

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