{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "floating-navbar",
  "title": "Floating Navbar",
  "description": "Hides on scroll down, returns the moment you scroll up.",
  "registryDependencies": [
    "utils"
  ],
  "files": [
    {
      "path": "src/components/velora/floating-navbar.tsx",
      "content": "\"use client\";\n\nimport { useEffect, useRef, useState } from \"react\";\n\nimport { cn } from \"@/lib/utils\";\n\ninterface FloatingNavbarProps extends React.HTMLAttributes<HTMLElement> {\n  /** Pixels scrolled before the bar is allowed to hide */\n  revealAfter?: number;\n  /** Scrollable element to watch instead of the window */\n  scrollContainer?: React.RefObject<HTMLElement | null>;\n  children: React.ReactNode;\n}\n\n/**\n * Header that slides away as you scroll down and returns the moment you\n * scroll back up. Renders visible on the server, so there is no flash, and\n * slides back in whenever focus moves into it.\n */\nexport function FloatingNavbar({\n  revealAfter = 120,\n  scrollContainer,\n  children,\n  className,\n  onFocus,\n  ...props\n}: FloatingNavbarProps) {\n  const [hidden, setHidden] = useState(false);\n  const lastY = useRef(0);\n  const ref = useRef<HTMLElement>(null);\n\n  useEffect(() => {\n    const container = scrollContainer?.current;\n    const target = container ?? window;\n    const readY = () => (container ? container.scrollTop : window.scrollY);\n    lastY.current = readY();\n    let frame = 0;\n\n    const onScroll = () => {\n      if (frame) return;\n      frame = requestAnimationFrame(() => {\n        frame = 0;\n        const y = readY();\n        const delta = y - lastY.current;\n        // Ignore sub-pixel jitter and rubber-band scroll past the top.\n        if (Math.abs(delta) < 4) return;\n        const focused = ref.current?.contains(document.activeElement);\n        setHidden(delta > 0 && y > revealAfter && !focused);\n        lastY.current = y;\n      });\n    };\n\n    target.addEventListener(\"scroll\", onScroll, { passive: true });\n    return () => {\n      target.removeEventListener(\"scroll\", onScroll);\n      if (frame) cancelAnimationFrame(frame);\n    };\n  }, [revealAfter, scrollContainer]);\n\n  return (\n    <header\n      {...props}\n      ref={ref}\n      data-slot=\"floating-navbar\"\n      onFocus={(event) => {\n        // Keyboard focus must never land on an off-screen link.\n        setHidden(false);\n        onFocus?.(event);\n      }}\n      className={cn(\n        \"fixed inset-x-0 top-4 z-50 mx-auto flex w-[calc(100%-2rem)] max-w-3xl items-center justify-between gap-4 rounded-full border bg-background/80 px-5 py-2.5 shadow-lg shadow-foreground/5 backdrop-blur-md transition-transform duration-300 ease-out motion-reduce:transition-none\",\n        hidden ? \"-translate-y-[calc(100%+1.5rem)]\" : \"translate-y-0\",\n        className\n      )}\n    >\n      {children}\n    </header>\n  );\n}\n",
      "type": "registry:ui",
      "target": "components/velora/floating-navbar.tsx"
    }
  ],
  "type": "registry:ui"
}