@rc-component/menu

_{Part of the Ant Design ecosystem.}

🧭 Accessible React menu primitives for navigation, command surfaces, and nested item trees.

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Highlights

• Horizontal, vertical, and inline menu modes.
• Controlled and uncontrolled selection, open keys, and active key state.
• items configuration API with legacy children support.
• Sub menus, item groups, dividers, icons, overflow, popup rendering, and keyboard focus helpers.
• TypeScript definitions and semantic classNames / styles slots.
• Used by Ant Design as the shared menu foundation.

Install

npm install @rc-component/menu

Usage

importMenu,{typeMenuProps}from'@rc-component/menu';constitems: MenuProps['items']=[{key: 'home',label: 'Home'},{key: 'docs',label: 'Docs',children: [{key: 'quick-start',label: 'Quick start'},{key: 'api',label: 'API'},],},];exportdefault()=>(<Menumode="inline"items={items}defaultSelectedKeys={['home']}defaultOpenKeys={['docs']}/>);

importMenu,{MenuItem,SubMenu}from'@rc-component/menu';exportdefault()=>(<Menu><MenuItemkey="1">Item 1</MenuItem><SubMenukey="2"title="More"><MenuItemkey="2-1">Item 2-1</MenuItem></SubMenu></Menu>);

Examples

Run the local dumi site:

npm install
npm start

Then open http://localhost:8000.

API

Menu

Property	Type	Default	Description
activeKey	string	-	Controlled active item key.
builtinPlacements	Record<string, any>	-	Popup alignment placements for sub menus.
className	string	-	Class name for the root menu.
classNames	Partial<Record<'list' | 'listTitle', string>>	-	Semantic class names for menu slots.
defaultActiveFirst	boolean	false	Focus the first enabled item when active key is absent.
defaultOpenKeys	string[]	[]	Initial open sub menu keys.
defaultSelectedKeys	string[]	[]	Initial selected item keys.
defaultMotions	Partial<Record<MenuMode | 'other', CSSMotionProps>>	-	Motion config by menu mode.
direction	'ltr' | 'rtl'	-	Layout direction.
disabled	boolean	false	Disable all menu interactions.
disabledOverflow	boolean	false	Disable overflow measurement.
expandIcon	ReactNode | (props: RenderIconInfo) => ReactNode	-	Custom sub menu expand icon.
forceSubMenuRender	boolean	false	Render popup sub menus before they are opened.
getPopupContainer	(node: HTMLElement) => HTMLElement	-	Container for popup sub menus.
inlineCollapsed	boolean	-	Collapse inline menu layout.
inlineIndent	number	24	Indent width for inline mode.
itemIcon	ReactNode | (props: RenderIconInfo) => ReactNode	-	Custom item icon.
items	ItemType[]	-	Menu item configuration.
mode	'horizontal' | 'vertical' | 'inline'	vertical	Menu display mode.
motion	CSSMotionProps	-	Motion config for menu transitions.
multiple	boolean	false	Allow multiple selected items.
openKeys	string[]	-	Controlled open sub menu keys.
overflowedIndicator	ReactNode	"..."	Indicator rendered for overflowed items.
popupRender	(node, info) => ReactNode	-	Customize popup menu rendering.
prefixCls	string	rc-menu	Class name prefix.
rootClassName	string	-	Class name for the root wrapper.
selectable	boolean	true	Allow item selection.
selectedKeys	string[]	-	Controlled selected item keys.
styles	Partial<Record<'list' | 'listTitle', CSSProperties>>	-	Semantic styles for menu slots.
subMenuCloseDelay	number	0.1	Delay in seconds before closing popup sub menus.
subMenuOpenDelay	number	0.1	Delay in seconds before opening popup sub menus.
triggerSubMenuAction	'click' | 'hover'	hover	Interaction that opens sub menus.
onClick	(info: MenuInfo) => void	-	Triggered when an item is clicked.
onDeselect	(info: SelectInfo) => void	-	Triggered when an item is deselected.
onOpenChange	(openKeys: string[]) => void	-	Triggered when open keys change.
onSelect	(info: SelectInfo) => void	-	Triggered when an item is selected.

ItemType

typeItemType=|{type?: 'item';// Item keys accept React.Key and are normalized to strings in event info.key: React.Key;label?: React.ReactNode;disabled?: boolean;itemIcon?: RenderIconType;extra?: React.ReactNode;}|{type?: 'submenu';// Sub menu keys are strings to match openKeys/defaultOpenKeys.key: string;label?: React.ReactNode;children: ItemType[];disabled?: boolean;}|{type: 'group';label?: React.ReactNode;children?: ItemType[];}|{type: 'divider';};

Ref

Method	Type	Description
focus	(options?: FocusOptions) => void	Focus the active item or first enabled item.
findItem	({ key: string }) => HTMLElement | null	Find the DOM element for an item key.
list	HTMLUListElement	Root menu list element.

Development

npm install
npm start
npm test
npm run tsc
npm run compile
npm run build

The dumi site runs at http://localhost:8000 by default.

Release

npm run prepublishOnly

The release flow is handled by @rc-component/np through the rc-np command after the package build.

License

@rc-component/menu is released under the MIT license.