# Collapsible

Native details disclosure with controlled or uncontrolled open state.

[All components](https://rickylabs.github.io/netscript/design-system/components/) · [Theme builder](https://rickylabs.github.io/netscript/create/) · [Implementation source](https://github.com/rickylabs/netscript/blob/main/packages/fresh-ui/registry/components/ui/collapsible.tsx)

## Live preview

[Open live collapsible preview](https://rickylabs.github.io/netscript/assets/fresh-ui/preview/?component=collapsible&theme=studio-utility)

## Install

```bash
netscript ui:add collapsible
```

## Usage and examples

The preview runs this JSX with the installed components. Import any composed primitives from your UI directory.

```tsx
import { useState } from 'preact/hooks';
import { Collapsible } from '@app/components/ui/collapsible.tsx';

export function Example() {
  const [value, setValue] = useState('standard');
  const [open, setOpen] = useState(false);
  const [notice, report] = useState('');
  return (<><div><Collapsible label="Order details">Ready for fulfillment</Collapsible></div><p role="status">{notice}</p></>);
}
```

## Props

Generated from native `deno doc --json --private` over the shipped implementation. Compound component props retain their owning interface; native attributes pass through where declared.

| Owner | Prop | Type | Optional | Description |
| --- | --- | --- | --- | --- |
| `CollapsibleProps` | `label` | `ComponentChildren` | No |  |
| `CollapsibleProps` | `children` | `ComponentChildren` | No |  |
| `CollapsibleProps` | `open` | `boolean` | Yes |  |
| `CollapsibleProps` | `defaultOpen` | `boolean` | Yes |  |
| `CollapsibleProps` | `onOpenChange` | `(open: boolean) => void` | Yes |  |
| `CollapsibleProps` | `disabled` | `boolean` | Yes |  |
| `CollapsibleProps` | `class` | `string` | Yes |  |

```typescript
CollapsibleProps extends Omit<JSX.DetailsHTMLAttributes<HTMLDetailsElement>, "open" | "class">
```

## Keyboard

| Key | Action |
| --- | --- |
| `Enter/Space` | Toggle disclosure |

## Tokens

Semantic contract roles: `space/stack/gap`, `text/muted`, `radius/control`, `state/disabled-opacity`.

CSS custom properties referenced directly: `--ns-control-gap`, `--ns-fg`, `--ns-muted`, `--ns-radius-control`, `--ns-ring`, `--ns-space-1`, `--ns-space-2`, `--ns-stack-gap`, `--ns-text-small`, `--ns-weight-strong`.

## Contract and compatibility

Accessibility pattern: [WAI-ARIA guidance](https://www.w3.org/WAI/ARIA/apg/patterns/disclosure/)

- Native details/summary retains no-JavaScript disclosure behavior. After hydration, controlled refusal preserves open and disabled summary prevents activation. Before hydration, native disclosure remains toggleable, including aria-disabled summaries. No global listeners.

Design contract values marked planned are not implementation props. The props above describe what ships today.