Checkbox

npm install react-aria-components

"use client";

import type { ReactNode } from "react";
import { Checkbox as AriaCheckbox, type CheckboxProps as AriaCheckboxProps } from "react-aria-components";

const styles = {
  root: "group inline-flex cursor-default items-center gap-(--tui-checkbox-gap) font-(family-name:--tui-font) text-(length:--tui-checkbox-font-size) leading-tight text-(--tui-checkbox-fg) select-none data-disabled:opacity-(--tui-checkbox-disabled-opacity)",
  // No outline to tick inside: a soft disc that fills, and the mark draws itself in.
  box: "flex size-(--tui-checkbox-size) shrink-0 items-center justify-center rounded-(--tui-checkbox-radius) bg-(--tui-checkbox-bg) text-(--tui-checkbox-check) transition-[background-color,scale] duration-(--tui-checkbox-duration) ease-out group-data-hovered:bg-(--tui-checkbox-bg-hover) group-data-pressed:scale-90 group-data-selected:bg-(--tui-checkbox-selected-bg)! group-data-indeterminate:bg-(--tui-checkbox-selected-bg)! group-data-focus-visible:[outline:var(--tui-checkbox-ring-width)_solid_var(--tui-checkbox-ring)] group-data-focus-visible:[outline-offset:var(--tui-checkbox-ring-offset)]",
  mark: "size-[64%] [stroke-dasharray:16] [stroke-dashoffset:16] transition-[stroke-dashoffset] duration-(--tui-checkbox-duration) ease-out group-data-indeterminate:[stroke-dashoffset:0] group-data-selected:[stroke-dashoffset:0]",
};

export interface CheckboxProps extends Omit<AriaCheckboxProps, "className" | "children"> {
  children?: ReactNode;
  className?: string;
}

export function Checkbox({ children, className, ...props }: CheckboxProps) {
  return (
    <AriaCheckbox {...props} className={[styles.root, className].filter(Boolean).join(" ")}>
      {({ isIndeterminate }) => (
        <>
          <span data-slot="checkbox-box" className={styles.box}>
            <svg aria-hidden viewBox="0 0 16 16" fill="none" stroke="currentColor" strokeWidth="2.25" strokeLinecap="round" strokeLinejoin="round" className={styles.mark}>
              {isIndeterminate ? <path d="M4 8h8" /> : <path d="M3.5 8.5l3 3 6-7" />}
            </svg>
          </span>
          {children}
        </>
      )}
    </AriaCheckbox>
  );
}

:root {
  color-scheme: light;
  --tui-bg: #ffffff;
  --tui-fg: #0a0a0a;
  --tui-muted: #f5f5f5;
  --tui-muted-fg: #737373;
  --tui-border: #e5e5e5;
  --tui-primary: #171717;
  --tui-primary-fg: #fafafa;
  --tui-ring: #a3a3a3;
  --tui-success: #16a34a;
  --tui-warning: #d97706;
  --tui-danger: #dc2626;
  --tui-radius: 8px;
  --tui-border-width: 1px;
  --tui-space: 4px;
  --tui-shadow: none;
  --tui-font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --tui-text: 14px;
  --tui-duration: 150ms;

  /* Checkbox */
  --tui-checkbox-size: calc(var(--tui-space) * 5.5);
  --tui-checkbox-gap: calc(var(--tui-space) * 3);
  --tui-checkbox-radius: calc(var(--tui-radius) * 1.5);
  --tui-checkbox-font-size: var(--tui-text);
  --tui-checkbox-duration: 200ms;
  --tui-checkbox-bg: color-mix(in srgb, var(--tui-bg) 91%, var(--tui-fg));
  --tui-checkbox-fg: var(--tui-fg);
  --tui-checkbox-bg-hover: color-mix(in srgb, var(--tui-bg) 85%, var(--tui-fg));
  --tui-checkbox-selected-bg: var(--tui-primary);
  --tui-checkbox-check: var(--tui-primary-fg);
  --tui-checkbox-ring: var(--tui-ring);
  --tui-checkbox-ring-width: 2px;
  --tui-checkbox-ring-offset: 2px;
  --tui-checkbox-disabled-opacity: 0.5;
}

.dark,
[data-theme="dark"] {
  color-scheme: dark;
  --tui-bg: #0a0a0a;
  --tui-fg: #fafafa;
  --tui-muted: #1c1c1c;
  --tui-muted-fg: #a3a3a3;
  --tui-border: #2a2a2a;
  --tui-primary: #fafafa;
  --tui-primary-fg: #171717;
  --tui-ring: #737373;
  --tui-success: #22c55e;
  --tui-warning: #f59e0b;
  --tui-danger: #ef4444;
}