Collapsible

Native details disclosure with controlled or uncontrolled open state.

All components · Theme builder · Implementation source

Live preview

Install

Shell

netscript ui:add collapsible

Usage and examples

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

TypeScript

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
`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

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.