@affino/menu-react

> React's most precise headless menu system — deterministic controllers, diagonal pointer intent, and zero styling opinions.

``tsx
import { UiMenu, UiMenuTrigger, UiMenuContent, UiMenuItem } from "@affino/menu-react"

const actions = ["Edit", "Duplicate", "Archive"]

export function ActionsMenu() {
return (

Actions

{actions.map((action) => (
console.log(action)}>
{action}

))}


)
}
`

`bash
npm install @affino/menu-react
`

Core Features

- Headless React components powered by @affino/menu-core
- Smart mouse prediction keeps submenus open during diagonal travel
- Unlimited submenu depth with shared tree state and safe focus handoffs
- Context-menu + click menu support with a single trigger surface
- Auto positioning and viewport collision handling without extra deps
- Snapshot-driven controller subscriptions for zero wasted renders
- asChild pattern so you can slot in any DOM structure or design system primitive
- Programmatic controller API for imperative flows (open, close, highlight, select)
- CSS variables for seamless theming (light/dark/brand palettes)
- First-class TypeScript types for every prop, event payload, and controller method

Docs → ../../docs/index.md

Getting Started

1. npm install @affino/menu-react
2. Import the base styles once in your app entry so the design tokens are available everywhere:

`ts
import "@affino/menu-react/styles.css"
`

3. Compose , , , and to build dropdowns, context menus, or nested navigation.
4. Nest components for infinite submenu depth.
5. Use the supplied hooks (useMenu, useMenuShortcuts) to drive programmatic flows.

Controller Surface

useMenuController now builds on top of createMenuTree, so the hook exposes the same pointer + geometry adapters the core uses internally. Opt into them whenever you need custom positioning or analytics—no instanceof SubmenuCore casts required.

`tsx
const controller = useMenuController({ kind: "root", options, callbacks })

useEffect(() => {
if (!controller.state.open) return
console.log("Active item", controller.state.activeItemId)
}, [controller.state.open, controller.state.activeItemId])

controller.recordPointer?.({ x: event.clientX, y: event.clientY })
controller.setTriggerRect?.(controller.triggerRef.current?.getBoundingClientRect() ?? null)
controller.setPanelRect?.(controller.panelRef.current?.getBoundingClientRect() ?? null)
controller.setAnchor(controller.triggerRef.current?.getBoundingClientRect() ?? null)
`

- recordPointer feeds diagonal intent detection, enabling alternate input sources (stylus, remote desktop, Playwright pointer hooks).
- setTriggerRect / setPanelRect keep submenu geometry fresh after layout transitions without poking private APIs.
- setAnchor supports context menus, palette-style overlays, and anchored inspectors with zero custom timers.

Headless usage with createMenuTree

Rolling your own renderer? Instantiate the helper directly to get the same branch objects the React hook relies on.

`ts
import { createMenuTree } from "@affino/menu-core"

const tree = createMenuTree({ options: { openDelay: 75, closeDelay: 120 } })
tree.root.registerItem("file")

const submenu = tree.createSubmenu({
parent: tree.root,
parentItemId: "file",
})

const syncGeometry = () => {
submenu.geometry?.sync({
trigger: document.querySelector("[data-file]")?.getBoundingClientRect() ?? null,
panel: document.querySelector("[data-file-panel]")?.getBoundingClientRect() ?? null,
})
}

window.addEventListener("pointermove", (event) => {
submenu.pointer?.record({ x: event.clientX, y: event.clientY })
})

syncGeometry()

// Clean up every branch when you unmount
tree.destroy()
`

This keeps third-party design systems, test harnesses, and custom renderers aligned with the official adapters.

Live Examples

Try it yourself in under 30 seconds:

- 🚀 Demos →

FAQ

- Does it work with Next.js / SSR? Yes — everything renders on the server, hydrates on the client, and pointer-only features no-op until window exists.
- Can I open at pointer coordinates? Call controller.setAnchor({ x, y, width: 0, height: 0 }) before controller.open("pointer") or rely on the built-in context menu trigger.
- How do I keep my own DOM? Pass asChild to any trigger or item component and Affino will clone + merge props while preserving refs/events.
- What about 1000+ items? Pair ` with your favorite virtualization library; controllers stay snapshot-driven and never depend on render count.

Browser Support

- Evergreen Chromium, Firefox, Safari (ES2020+)
- React 18+
- TypeScript 5+

License

MIT © affino OSS