Dropdown Menu

Preview

Rendered from the story the storybook (a11y) CI gate runs axe against — the preview can't show something that hasn't been verified.

Install

Two equivalent paths — the URL works in any shadcn-CLI setup; the alias works once you've registered @interlace in your components.json.

npx shadcn@latest add https://ds.interlace.tools/r/dropdown-menu.json

npx shadcn@latest add @interlace/dropdown-menu

Import

17 named exports — pull the parts you need.

import { DropdownMenu, DropdownMenuCheckboxItem, DropdownMenuCompose, DropdownMenuContent, DropdownMenuGroup, DropdownMenuItem, DropdownMenuLabel, DropdownMenuPortal, DropdownMenuRadioGroup, DropdownMenuRadioItem, DropdownMenuSeparator, DropdownMenuShortcut, DropdownMenuSub, DropdownMenuSubContent, DropdownMenuSubTrigger, DropdownMenuTrigger, MIN_VIEWPORT } from '@/components/ui/dropdown-menu';

Anatomy

Extracted from the primitive's JSDoc header. The source is the only documentation that can't drift.

DropdownMenu                     (Menu.Root — renders no DOM node)
    ├─ DropdownMenuTrigger         (Menu.Trigger)
    └─ DropdownMenuContent         (Portal → Positioner(z-50) → Popup — data-min-viewport=320)
         ├─ DropdownMenuLabel      (a plain div — see below)
         ├─ DropdownMenuGroup      (Menu.Group)
         ├─ DropdownMenuItem       (Menu.Item — variant default | destructive)
         ├─ DropdownMenuCheckboxItem / DropdownMenuRadioGroup + RadioItem
         ├─ DropdownMenuSeparator  (a plain div with role="separator")
         ├─ DropdownMenuShortcut   (span, ml-auto)
         └─ DropdownMenuSub        (SubmenuRoot → SubTrigger + SubContent)
`DropdownMenuContent` is not a thin wrapper: it bundles Portal, Positioner
and Popup, so `side` / `align` / `sideOffset` are lifted onto it and any
other prop lands on the Popup.

API reference

Parsed from the type declarations in the source — the same file the install writes into your tree, so this table can't drift from the component you get.

Accessibility

Every story for this component is rendered headlessly and checked with axe-core (wcag2aa, wcag22aa, best-practice, ACT) on every PR. That gate has no continue-on-error, so what ships has zero known violations.

What follows is what static analysis can see. Axe cannot press a key and never sees an overlay open, so the operable-without-a-mouse claim lives in Behavior instead, where the keyboard path is replayed step by step.

Focus + keyboard behaviour

Owned by @base-ui/react/menu — focus trapping, dismissal and typeahead come from the headless primitive, not from us.

Focus ring (WCAG 2.2 SC 2.4.13)

Not focusable — no focus indicator required.

Reduced motion

No animation to gate.

ARIA in the source

• role="separator"

Examples

3 more states from the same story file.

R-rule compliance

Every primitive in @interlace/ui models to the portable 26-rule floor enforced by the componentApi ESLint preset. The cells below pin exactly where each rule applies in this file.

Dependencies

Base UI primitive

@base-ui/react/menu

Lucide icons

• CheckIcon
• ChevronRightIcon
• CircleIcon

NPM dependencies

• @base-ui/react
• lucide-react

Registry dependencies

• @interlace/theme
• @interlace/cn

Source

The full implementation — components/ui/dropdown-menu.tsx once installed.

'use client';

import * as React from 'react';

// @interlace/dropdown-menu v1.3.0 — Interlace design system.
// Docs, props and live preview: https://ds.interlace.tools/c/dropdown-menu
// What changed since: https://ds.interlace.tools/c/dropdown-menu#history
// Generated banner — keep it, the upgrade diff reads this version.

/**
 * @interlace/ui — DropdownMenu
 *
 * A button-triggered command menu — items, checkbox and radio items, submenus,
 * plus a `Compose` array shorthand. Wraps @base-ui/react/menu: Base UI owns
 * open state, positioning, focus and typeahead; we own the popup and the rows.
 *
 * The menu ARIA is upstream's too, except where this file steps out of it on
 * purpose — see below.
 *
 * ## Anatomy

…424 more lines…

Registry JSON

The raw registry record — what the shadcn CLI fetches.