shadcn-ui/apps/v4/examples/base/menubar-submenu.tsx

import {
  Menubar,
  MenubarContent,
  MenubarItem,
  MenubarMenu,
  MenubarSeparator,
  MenubarShortcut,
  MenubarSub,
  MenubarSubContent,
  MenubarSubTrigger,
  MenubarTrigger,
} from "@/styles/base-nova/ui/menubar"

export function MenubarSubmenu() {
  return (
    <Menubar className="w-72">
      <MenubarMenu>
        <MenubarTrigger>File</MenubarTrigger>
        <MenubarContent>
          <MenubarSub>
            <MenubarSubTrigger>Share</MenubarSubTrigger>
            <MenubarSubContent>
              <MenubarItem>Email link</MenubarItem>
              <MenubarItem>Messages</MenubarItem>
              <MenubarItem>Notes</MenubarItem>
            </MenubarSubContent>
          </MenubarSub>
          <MenubarSeparator />
          <MenubarItem>
            Print... <MenubarShortcut>⌘P</MenubarShortcut>
          </MenubarItem>
        </MenubarContent>
      </MenubarMenu>
      <MenubarMenu>
        <MenubarTrigger>Edit</MenubarTrigger>
        <MenubarContent>
          <MenubarItem>
            Undo <MenubarShortcut>⌘Z</MenubarShortcut>
          </MenubarItem>
          <MenubarItem>
            Redo <MenubarShortcut>⇧⌘Z</MenubarShortcut>
          </MenubarItem>
          <MenubarSeparator />
          <MenubarSub>
            <MenubarSubTrigger>Find</MenubarSubTrigger>
            <MenubarSubContent>
              <MenubarItem>Find...</MenubarItem>
              <MenubarItem>Find Next</MenubarItem>
              <MenubarItem>Find Previous</MenubarItem>
            </MenubarSubContent>
          </MenubarSub>
          <MenubarSeparator />
          <MenubarItem>Cut</MenubarItem>
          <MenubarItem>Copy</MenubarItem>
          <MenubarItem>Paste</MenubarItem>
        </MenubarContent>
      </MenubarMenu>
    </Menubar>
  )
}