Solid Button

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import type { ButtonHTMLAttributes, ReactNode } from "react";

/* DevSnips React — SolidButton
 * Filled primary action. High-emphasis: one per surface. Built on the
 * semantic tokens color.primary / color.primary-foreground from
 * React/DESIGN_TOKENS.md. Tailwind utilities consume the tokens via
 * arbitrary values (var(--ds-...)) so the button themes with the surface.
 */

export type ButtonSize = "xs" | "sm" | "md" | "lg" | "xl";

export interface SolidButtonProps
  extends ButtonHTMLAttributes<HTMLButtonElement> {
  /** Control height. `md` (36px) is the default. */
  size?: ButtonSize;
  /** Fill the available width (`w-full`). */
  block?: boolean;
  /** Show a spinner and disable interaction while an action is pending. */
  loading?: boolean;
  /** Leading icon node. */
  iconLeft?: ReactNode;
  /** Trailing icon node. */
  iconRight?: ReactNode;
}

function cx(...parts: Array<string | false | null | undefined>): string {
  return parts.filter(Boolean).join(" ");
}

function Spinner() {
  return (
    <svg className="h-[1em] w-[1em] shrink-0 animate-spin motion-reduce:animate-none" viewBox="0 0 24 24" fill="none" aria-hidden="true">
      <circle cx="12" cy="12" r="9" stroke="currentColor" strokeWidth="3" className="opacity-25" />
      <path d="M21 12a9 9 0 0 0-9-9" stroke="currentColor" strokeWidth="3" strokeLinecap="round" />
    </svg>
  );
}

const SIZES: Record<ButtonSize, string> = {
  xs: "h-7 gap-1 px-2 text-xs [&_svg]:size-[14px]",
  sm: "h-8 gap-1.5 px-3 text-xs [&_svg]:size-[14px]",
  md: "h-9 gap-2 px-3.5 text-[13px] [&_svg]:size-4",
  lg: "h-10 gap-2 px-4 text-[13px] [&_svg]:size-[18px]",
  xl: "h-11 gap-2 px-5 text-sm [&_svg]:size-5",
};

export function SolidButton({
  children,
  size = "md",
  block = false,
  loading = false,
  disabled,
  iconLeft,
  iconRight,
  className,
  type = "button",
  ...rest
}: SolidButtonProps) {
  const isDisabled = disabled || loading;
  return (
    <button
      type={type}
      className={cx(
        "inline-flex select-none items-center justify-center whitespace-nowrap rounded-[var(--ds-radius-sm)] border font-medium leading-none transition-colors duration-150 ease-out motion-reduce:transition-none focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-[var(--ds-color-focus-ring)] disabled:pointer-events-none disabled:opacity-50",
        "border-transparent bg-[var(--ds-color-primary)] text-[var(--ds-color-primary-foreground)] hover:bg-[color-mix(in_srgb,var(--ds-color-primary)_88%,#000)] active:bg-[color-mix(in_srgb,var(--ds-color-primary)_80%,#000)]",
        SIZES[size],
        block && "w-full",
        className,
      )}
      disabled={isDisabled}
      aria-busy={loading || undefined}
      {...rest}
    >
      {loading ? <Spinner /> : iconLeft}
      <span>{children}</span>
      {!loading && iconRight}
    </button>
  );
}

export default SolidButton;

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/* DevSnips React — JavaScript parity build.
 * Same API, behavior, and classes as code.tsx; TypeScript types removed.
 * Regenerated from code.tsx — edit code.tsx and re-run the generator.
 */

function cx(...parts) {
  return parts.filter(Boolean).join(" ");
}
function Spinner() {
  return <svg className="h-[1em] w-[1em] shrink-0 animate-spin motion-reduce:animate-none" viewBox="0 0 24 24" fill="none" aria-hidden="true">
      <circle cx="12" cy="12" r="9" stroke="currentColor" strokeWidth="3" className="opacity-25" />
      <path d="M21 12a9 9 0 0 0-9-9" stroke="currentColor" strokeWidth="3" strokeLinecap="round" />
    </svg>;
}
const SIZES = {
  xs: "h-7 gap-1 px-2 text-xs [&_svg]:size-[14px]",
  sm: "h-8 gap-1.5 px-3 text-xs [&_svg]:size-[14px]",
  md: "h-9 gap-2 px-3.5 text-[13px] [&_svg]:size-4",
  lg: "h-10 gap-2 px-4 text-[13px] [&_svg]:size-[18px]",
  xl: "h-11 gap-2 px-5 text-sm [&_svg]:size-5"
};
export function SolidButton({
  children,
  size = "md",
  block = false,
  loading = false,
  disabled,
  iconLeft,
  iconRight,
  className,
  type = "button",
  ...rest
}) {
  const isDisabled = disabled || loading;
  return <button
    type={type}
    className={cx(
      "inline-flex select-none items-center justify-center whitespace-nowrap rounded-[var(--ds-radius-sm)] border font-medium leading-none transition-colors duration-150 ease-out motion-reduce:transition-none focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-[var(--ds-color-focus-ring)] disabled:pointer-events-none disabled:opacity-50",
      "border-transparent bg-[var(--ds-color-primary)] text-[var(--ds-color-primary-foreground)] hover:bg-[color-mix(in_srgb,var(--ds-color-primary)_88%,#000)] active:bg-[color-mix(in_srgb,var(--ds-color-primary)_80%,#000)]",
      SIZES[size],
      block && "w-full",
      className
    )}
    disabled={isDisabled}
    aria-busy={loading || undefined}
    {...rest}
  >
      {loading ? <Spinner /> : iconLeft}
      <span>{children}</span>
      {!loading && iconRight}
    </button>;
}

export default SolidButton;

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# Solid Button

The primary, high-emphasis action. A filled neutral surface built on color.primary and color.primary-foreground — the canonical confirmation control in the DevSnips React system.

## Installation

This component requires **React** and **Tailwind CSS**. Drop `code.tsx` (or `code.jsx` for JavaScript projects) into your project. Tailwind utility classes are included directly in the component, so no separate CSS file is required.

The component consumes the DevSnips semantic design tokens through Tailwind arbitrary values (for example `bg-[var(--ds-color-primary)]`). Define the `--ds-*` tokens once in your theme — see [React/DESIGN_TOKENS.md](../../../DESIGN_TOKENS.md) for the full token spec.

## Usage

```tsx
<SolidButton size="md" onClick={save}>Save changes</SolidButton>
```

## JavaScript

A `code.jsx` build is provided for projects that ship plain JSX. It exposes the same API and behavior as `code.tsx` — only the TypeScript types are removed.

## Props

| Prop | Type | Default |
|---|---|---|
| `children` | `ReactNode` | — |
| `size` | `xs \| sm \| md \| lg \| xl` | `md` |
| `block` | `boolean` | `false` |
| `loading` | `boolean` | `false` |
| `disabled` | `boolean` | `false` |
| `iconLeft` / `iconRight` | `ReactNode` | — |
| `type` | `button \| submit \| reset` | `button` |

Plus all native `ButtonHTMLAttributes<HTMLButtonElement>` (onClick, aria-*, etc.).

## Variants

Single filled variant built on `color.primary` / `color.primary-foreground`. See OutlineButton / SecondaryButton / GhostButton for other emphasis levels.

## Sizes

xs (28px) · sm (32px) · **md (36px, default)** · lg (40px) · xl (44px). Horizontal padding scales 8 → 20px; icons scale 14 → 20px.

## States

default · hover · active · focus-visible · loading (spinner + `aria-busy`, layout preserved) · disabled (reduced opacity).

## Accessibility

Renders a native `<button>`. Focus-visible ring uses `color.focus-ring`. Loading sets `aria-busy` and disables to prevent double-submit. Disabled never removes the affordance (reduced opacity, not hidden). Meets the 44px touch target at lg/xl.

## Styling

Tailwind classes are included directly in the component and consume the DevSnips semantic design tokens (`--ds-*`) via arbitrary values. The button themes with the surface automatically in light and dark mode. No component-specific CSS file is needed.

## Design Tokens

See [React/DESIGN_TOKENS.md](../../../DESIGN_TOKENS.md) for the authoritative token specification. This button uses the semantic color, radius, and motion tokens; define them once in your project theme and every button in the family stays in sync.

## Notes

Keep exactly one solid button per prominent surface to preserve hierarchy. Pair with an OutlineButton for the cancel/secondary action.