shadcn-ui/apps/v4/examples/base/ui/navigation-menu.tsx

import { cn } from "@/examples/base/lib/utils"
import { NavigationMenu as NavigationMenuPrimitive } from "@base-ui/react/navigation-menu"
import { cva } from "class-variance-authority"

import { IconPlaceholder } from "@/app/(create)/components/icon-placeholder"

function NavigationMenu({
  align = "start",
  className,
  children,
  ...props
}: NavigationMenuPrimitive.Root.Props &
  Pick<NavigationMenuPrimitive.Positioner.Props, "align">) {
  return (
    <NavigationMenuPrimitive.Root
      data-slot="navigation-menu"
      className={cn(
        "group/navigation-menu relative flex max-w-max flex-1 items-center justify-center",
        className
      )}
      {...props}
    >
      {children}
      <NavigationMenuPositioner align={align} />
    </NavigationMenuPrimitive.Root>
  )
}

function NavigationMenuList({
  className,
  ...props
}: React.ComponentPropsWithRef<typeof NavigationMenuPrimitive.List>) {
  return (
    <NavigationMenuPrimitive.List
      data-slot="navigation-menu-list"
      className={cn(
        "group flex flex-1 list-none items-center justify-center gap-0",
        className
      )}
      {...props}
    />
  )
}

function NavigationMenuItem({
  className,
  ...props
}: React.ComponentPropsWithRef<typeof NavigationMenuPrimitive.Item>) {
  return (
    <NavigationMenuPrimitive.Item
      data-slot="navigation-menu-item"
      className={cn("relative", className)}
      {...props}
    />
  )
}

const navigationMenuTriggerStyle = cva(
  "bg-background hover:bg-muted focus:bg-muted data-open:hover:bg-muted data-open:focus:bg-muted data-open:bg-muted/50 focus-visible:ring-ring/50 data-popup-open:bg-muted/50 data-popup-open:hover:bg-muted rounded-lg px-2.5 py-1.5 text-sm font-medium transition-all focus-visible:ring-[3px] focus-visible:outline-1 disabled:opacity-50 group/navigation-menu-trigger inline-flex h-9 w-max items-center justify-center disabled:pointer-events-none outline-none"
)

function NavigationMenuTrigger({
  className,
  children,
  ...props
}: NavigationMenuPrimitive.Trigger.Props) {
  return (
    <NavigationMenuPrimitive.Trigger
      data-slot="navigation-menu-trigger"
      className={cn(navigationMenuTriggerStyle(), "group", className)}
      {...props}
    >
      {children}{" "}
      <IconPlaceholder
        lucide="ChevronDownIcon"
        tabler="IconChevronDown"
        hugeicons="ArrowDown01Icon"
        phosphor="CaretDownIcon"
        remixicon="RiArrowDownSLine"
        className="relative top-[1px] ml-1 size-3 transition duration-300 group-data-open/navigation-menu-trigger:rotate-180 group-data-popup-open/navigation-menu-trigger:rotate-180"
        aria-hidden="true"
      />
    </NavigationMenuPrimitive.Trigger>
  )
}

function NavigationMenuContent({
  className,
  ...props
}: NavigationMenuPrimitive.Content.Props) {
  return (
    <NavigationMenuPrimitive.Content
      data-slot="navigation-menu-content"
      className={cn(
        "data-[motion^=from-]:animate-in data-[motion^=to-]:animate-out data-[motion^=from-]:fade-in data-[motion^=to-]:fade-out data-[motion=from-end]:slide-in-from-right-52 data-[motion=from-start]:slide-in-from-left-52 data-[motion=to-end]:slide-out-to-right-52 data-[motion=to-start]:slide-out-to-left-52 group-data-[viewport=false]/navigation-menu:bg-popover group-data-[viewport=false]/navigation-menu:text-popover-foreground group-data-[viewport=false]/navigation-menu:data-open:animate-in group-data-[viewport=false]/navigation-menu:data-closed:animate-out group-data-[viewport=false]/navigation-menu:data-closed:zoom-out-95 group-data-[viewport=false]/navigation-menu:data-open:zoom-in-95 group-data-[viewport=false]/navigation-menu:data-open:fade-in-0 group-data-[viewport=false]/navigation-menu:data-closed:fade-out-0 group-data-[viewport=false]/navigation-menu:ring-foreground/10 h-full w-auto p-1 transition-[opacity,transform,translate] duration-[0.35s] ease-[cubic-bezier(0.22,1,0.36,1)] group-data-[viewport=false]/navigation-menu:rounded-lg group-data-[viewport=false]/navigation-menu:shadow group-data-[viewport=false]/navigation-menu:ring-1 group-data-[viewport=false]/navigation-menu:duration-300 data-[ending-style]:opacity-0 data-[ending-style]:data-[activation-direction=left]:translate-x-[50%] data-[ending-style]:data-[activation-direction=right]:translate-x-[-50%] **:data-[slot=navigation-menu-link]:focus:ring-0 **:data-[slot=navigation-menu-link]:focus:outline-none data-[starting-style]:opacity-0 data-[starting-style]:data-[activation-direction=left]:translate-x-[-50%] data-[starting-style]:data-[activation-direction=right]:translate-x-[50%]",
        className
      )}
      {...props}
    />
  )
}

function NavigationMenuPositioner({
  className,
  side = "bottom",
  sideOffset = 8,
  align = "start",
  alignOffset = 0,
  ...props
}: NavigationMenuPrimitive.Positioner.Props) {
  return (
    <NavigationMenuPrimitive.Portal>
      <NavigationMenuPrimitive.Positioner
        side={side}
        sideOffset={sideOffset}
        align={align}
        alignOffset={alignOffset}
        className={cn(
          "isolate z-50 h-[var(--positioner-height)] w-[var(--positioner-width)] max-w-[var(--available-width)] transition-[top,left,right,bottom] duration-300 duration-[0.35s] ease-[cubic-bezier(0.22,1,0.36,1)] data-[instant]:transition-none data-[side=bottom]:before:top-[-10px] data-[side=bottom]:before:right-0 data-[side=bottom]:before:left-0",
          className
        )}
        {...props}
      >
        <NavigationMenuPrimitive.Popup className="bg-popover text-popover-foreground ring-foreground/10 data-[ending-style]:easing-[ease] xs:w-(--popup-width) relative h-(--popup-height) w-(--popup-width) origin-(--transform-origin) rounded-lg shadow ring-1 transition-[opacity,transform,width,height,scale,translate] transition-all duration-[0.35s] ease-[cubic-bezier(0.22,1,0.36,1)] outline-none data-[ending-style]:scale-90 data-[ending-style]:opacity-0 data-[ending-style]:duration-150 data-[starting-style]:scale-90 data-[starting-style]:opacity-0">
          <NavigationMenuPrimitive.Viewport className="relative size-full overflow-hidden" />
        </NavigationMenuPrimitive.Popup>
      </NavigationMenuPrimitive.Positioner>
    </NavigationMenuPrimitive.Portal>
  )
}

function NavigationMenuLink({
  className,
  ...props
}: NavigationMenuPrimitive.Link.Props) {
  return (
    <NavigationMenuPrimitive.Link
      data-slot="navigation-menu-link"
      className={cn(
        "data-active:focus:bg-muted data-active:hover:bg-muted data-active:bg-muted/50 focus-visible:ring-ring/50 hover:bg-muted focus:bg-muted flex items-center gap-2 rounded-lg p-2 text-sm transition-all outline-none focus-visible:ring-[3px] focus-visible:outline-1 [&_svg:not([class*='size-'])]:size-4 [[data-slot=navigation-menu-content]_&]:rounded-md",
        className
      )}
      {...props}
    />
  )
}

function NavigationMenuIndicator({
  className,
  ...props
}: React.ComponentPropsWithRef<typeof NavigationMenuPrimitive.Icon>) {
  return (
    <NavigationMenuPrimitive.Icon
      data-slot="navigation-menu-indicator"
      className={cn(
        "data-[state=visible]:animate-in data-[state=hidden]:animate-out data-[state=hidden]:fade-out data-[state=visible]:fade-in top-full z-[1] flex h-1.5 items-end justify-center overflow-hidden",
        className
      )}
      {...props}
    >
      <div className="bg-border relative top-[60%] h-2 w-2 rotate-45 rounded-tl-sm shadow-md" />
    </NavigationMenuPrimitive.Icon>
  )
}

export {
  NavigationMenu,
  NavigationMenuContent,
  NavigationMenuIndicator,
  NavigationMenuItem,
  NavigationMenuLink,
  NavigationMenuList,
  NavigationMenuTrigger,
  navigationMenuTriggerStyle,
  NavigationMenuPositioner,
}