Dropdown menu

"use client";

/*
 * The dropdown menu: a rounded panel that scales out of its trigger, rows
 * that tint as the highlight moves. The panel springs open with motion;
 * the root is kept controlled so the exit plays.
 */

import * as React from "react";
import { Menu as MenuPrimitive } from "@base-ui/react/menu";
import { ChevronRightIcon, CheckIcon } from "lucide-react";
import { AnimatePresence, motion, useReducedMotion } from "motion/react";

import { popupMotion, useOpenState } from "@showcase/components/ui/ai-motion";
import { cn } from "@showcase/lib/utils";

// The open state of the nearest menu — a submenu provides its own.
const MenuOpenContext = React.createContext<boolean | null>(null);

function DropdownMenu({
  open: openProp,
  defaultOpen,
  onOpenChange,
  ...props
}: MenuPrimitive.Root.Props) {
  const [open, setOpen] = useOpenState(openProp, defaultOpen, onOpenChange);
  return (
    <MenuOpenContext.Provider value={open}>
      <MenuPrimitive.Root
        data-slot="dropdown-menu"
        open={open}
        onOpenChange={setOpen}
        {...props}
      />
    </MenuOpenContext.Provider>
  );
}

function DropdownMenuPortal({ ...props }: MenuPrimitive.Portal.Props) {
  return <MenuPrimitive.Portal data-slot="dropdown-menu-portal" {...props} />;
}

function DropdownMenuTrigger({ ...props }: MenuPrimitive.Trigger.Props) {
  return <MenuPrimitive.Trigger data-slot="dropdown-menu-trigger" {...props} />;
}

function DropdownMenuContent({
  align = "start",
  alignOffset = 0,
  side = "bottom",
  sideOffset = 4,
  className,
  ...props
}: MenuPrimitive.Popup.Props &
  Pick<
    MenuPrimitive.Positioner.Props,
    "align" | "alignOffset" | "side" | "sideOffset"
  >) {
  const open = React.useContext(MenuOpenContext) ?? true;
  const reduced = useReducedMotion() ?? false;

  return (
    <AnimatePresence>
      {open && (
        <MenuPrimitive.Portal keepMounted>
          <MenuPrimitive.Positioner
            className="isolate z-popover outline-none"
            align={align}
            alignOffset={alignOffset}
            side={side}
            sideOffset={sideOffset}
          >
            <MenuPrimitive.Popup
              data-slot="dropdown-menu-content"
              render={<motion.div {...popupMotion(reduced)} />}
              className={cn(
                "max-h-(--available-height) w-(--anchor-width) min-w-36 origin-(--transform-origin) overflow-x-hidden overflow-y-auto rounded-lg border border-border bg-popover p-1 text-popover-foreground shadow-lg outline-none data-closed:overflow-hidden",
                className
              )}
              {...props}
            />
          </MenuPrimitive.Positioner>
        </MenuPrimitive.Portal>
      )}
    </AnimatePresence>
  );
}

function DropdownMenuGroup({ ...props }: MenuPrimitive.Group.Props) {
  return <MenuPrimitive.Group data-slot="dropdown-menu-group" {...props} />;
}

function DropdownMenuLabel({
  className,
  inset,
  ...props
}: MenuPrimitive.GroupLabel.Props & {
  inset?: boolean;
}) {
  return (
    <MenuPrimitive.GroupLabel
      data-slot="dropdown-menu-label"
      data-inset={inset}
      className={cn(
        "px-2 py-1 text-xs font-medium text-muted-foreground data-inset:pl-7",
        className
      )}
      {...props}
    />
  );
}

function DropdownMenuItem({
  className,
  inset,
  variant = "default",
  ...props
}: MenuPrimitive.Item.Props & {
  inset?: boolean;
  variant?: "default" | "destructive";
}) {
  return (
    <MenuPrimitive.Item
      data-slot="dropdown-menu-item"
      data-inset={inset}
      data-variant={variant}
      className={cn(
        "group/dropdown-menu-item relative flex cursor-default items-center gap-1.5 rounded-lg px-2 py-1.5 text-sm outline-hidden transition-colors duration-fast select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-7 data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 data-[variant=destructive]:focus:text-destructive dark:data-[variant=destructive]:focus:bg-destructive/20 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 data-[variant=destructive]:*:[svg]:text-destructive",
        className
      )}
      {...props}
    />
  );
}

function DropdownMenuSub({
  open: openProp,
  defaultOpen,
  onOpenChange,
  ...props
}: MenuPrimitive.SubmenuRoot.Props) {
  const [open, setOpen] = useOpenState(openProp, defaultOpen, onOpenChange);
  return (
    <MenuOpenContext.Provider value={open}>
      <MenuPrimitive.SubmenuRoot
        data-slot="dropdown-menu-sub"
        open={open}
        onOpenChange={setOpen}
        {...props}
      />
    </MenuOpenContext.Provider>
  );
}

function DropdownMenuSubTrigger({
  className,
  inset,
  children,
  ...props
}: MenuPrimitive.SubmenuTrigger.Props & {
  inset?: boolean;
}) {
  return (
    <MenuPrimitive.SubmenuTrigger
      data-slot="dropdown-menu-sub-trigger"
      data-inset={inset}
      className={cn(
        "flex cursor-default items-center gap-1.5 rounded-lg px-2 py-1.5 text-sm outline-hidden transition-colors duration-fast select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-7 data-popup-open:bg-accent data-popup-open:text-accent-foreground data-open:bg-accent data-open:text-accent-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    >
      {children}
      <ChevronRightIcon className="ml-auto" />
    </MenuPrimitive.SubmenuTrigger>
  );
}

function DropdownMenuSubContent({
  align = "start",
  alignOffset = -3,
  side = "right",
  sideOffset = 0,
  className,
  ...props
}: React.ComponentProps<typeof DropdownMenuContent>) {
  return (
    <DropdownMenuContent
      data-slot="dropdown-menu-sub-content"
      className={cn("w-auto min-w-24", className)}
      align={align}
      alignOffset={alignOffset}
      side={side}
      sideOffset={sideOffset}
      {...props}
    />
  );
}

function DropdownMenuCheckboxItem({
  className,
  children,
  checked,
  inset,
  ...props
}: MenuPrimitive.CheckboxItem.Props & {
  inset?: boolean;
}) {
  return (
    <MenuPrimitive.CheckboxItem
      data-slot="dropdown-menu-checkbox-item"
      data-inset={inset}
      className={cn(
        "relative flex cursor-default items-center gap-1.5 rounded-lg py-1.5 pr-8 pl-2 text-sm outline-hidden transition-colors duration-fast select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      checked={checked}
      {...props}
    >
      <span
        className="pointer-events-none absolute right-2 flex items-center justify-center"
        data-slot="dropdown-menu-checkbox-item-indicator"
      >
        <MenuPrimitive.CheckboxItemIndicator>
          <CheckIcon />
        </MenuPrimitive.CheckboxItemIndicator>
      </span>
      {children}
    </MenuPrimitive.CheckboxItem>
  );
}

function DropdownMenuRadioGroup({ ...props }: MenuPrimitive.RadioGroup.Props) {
  return (
    <MenuPrimitive.RadioGroup
      data-slot="dropdown-menu-radio-group"
      {...props}
    />
  );
}

function DropdownMenuRadioItem({
  className,
  children,
  inset,
  ...props
}: MenuPrimitive.RadioItem.Props & {
  inset?: boolean;
}) {
  return (
    <MenuPrimitive.RadioItem
      data-slot="dropdown-menu-radio-item"
      data-inset={inset}
      className={cn(
        "relative flex cursor-default items-center gap-1.5 rounded-lg py-1.5 pr-8 pl-2 text-sm outline-hidden transition-colors duration-fast select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-7 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    >
      <span
        className="pointer-events-none absolute right-2 flex items-center justify-center"
        data-slot="dropdown-menu-radio-item-indicator"
      >
        <MenuPrimitive.RadioItemIndicator>
          <CheckIcon />
        </MenuPrimitive.RadioItemIndicator>
      </span>
      {children}
    </MenuPrimitive.RadioItem>
  );
}

function DropdownMenuSeparator({
  className,
  ...props
}: MenuPrimitive.Separator.Props) {
  return (
    <MenuPrimitive.Separator
      data-slot="dropdown-menu-separator"
      className={cn("-mx-1 my-1 h-px bg-border", className)}
      {...props}
    />
  );
}

function DropdownMenuShortcut({
  className,
  ...props
}: React.ComponentProps<"span">) {
  return (
    <span
      data-slot="dropdown-menu-shortcut"
      className={cn(
        "ml-auto text-xs tracking-widest text-muted-foreground group-focus/dropdown-menu-item:text-accent-foreground",
        className
      )}
      {...props}
    />
  );
}

export {
  DropdownMenu,
  DropdownMenuPortal,
  DropdownMenuTrigger,
  DropdownMenuContent,
  DropdownMenuGroup,
  DropdownMenuLabel,
  DropdownMenuItem,
  DropdownMenuCheckboxItem,
  DropdownMenuRadioGroup,
  DropdownMenuRadioItem,
  DropdownMenuSeparator,
  DropdownMenuShortcut,
  DropdownMenuSub,
  DropdownMenuSubTrigger,
  DropdownMenuSubContent,
};