examples/web_ui/frontend/src/components/ui/resizable.tsx

import * as ResizablePrimitive from 'react-resizable-panels';

import { cn } from '@/lib/utils';

function ResizablePanelGroup({ className, ...props }: ResizablePrimitive.GroupProps) {
	return (
		<ResizablePrimitive.Group
			data-slot="resizable-panel-group"
			className={cn('flex h-full w-full aria-[orientation=vertical]:flex-col', className)}
			{...props}
		/>
	);
}

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

function ResizableHandle({
	withHandle,
	className,
	...props
}: ResizablePrimitive.SeparatorProps & {
	withHandle?: boolean;
}) {
	return (
		<ResizablePrimitive.Separator
			data-slot="resizable-handle"
			className={cn(
				'group relative flex w-px items-center justify-center bg-border ring-offset-background 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-ring focus-visible:outline-hidden aria-[orientation=horizontal]:h-px aria-[orientation=horizontal]:w-full aria-[orientation=horizontal]:after:left-0 aria-[orientation=horizontal]:after:h-1 aria-[orientation=horizontal]:after:w-full aria-[orientation=horizontal]:after:translate-x-0 aria-[orientation=horizontal]:after:-translate-y-1/2 [&[aria-orientation=horizontal]>div]:rotate-90',
				className,
			)}
			{...props}
		>
			{withHandle && (
				<div className="z-10 flex h-6 w-1 shrink-0 rounded-lg bg-border opacity-0 transition-opacity duration-150 group-hover:opacity-100" />
			)}
		</ResizablePrimitive.Separator>
	);
}

export { ResizableHandle, ResizablePanel, ResizablePanelGroup };