4f:I[707087,["/_next/static/immutable/chunks/2985g-hklwiee.js","/_next/static/immutable/chunks/0qkc3dps_9x_i.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3thksmxn95rly.js","/_next/static/immutable/chunks/2ocpj6i2oorb_.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1r51enyhosz-u.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/3qfn9_v7pj_rb.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/13f5hjswluuex.js","/_next/static/immutable/chunks/0a8eymjz3e95j.js"],"RegistryDependencies"] 50:I[512940,["/_next/static/immutable/chunks/2985g-hklwiee.js","/_next/static/immutable/chunks/0qkc3dps_9x_i.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3thksmxn95rly.js","/_next/static/immutable/chunks/2ocpj6i2oorb_.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1r51enyhosz-u.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/3qfn9_v7pj_rb.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/13f5hjswluuex.js","/_next/static/immutable/chunks/0a8eymjz3e95j.js"],"Installation"] 51:I[314491,["/_next/static/immutable/chunks/2985g-hklwiee.js","/_next/static/immutable/chunks/0qkc3dps_9x_i.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3thksmxn95rly.js","/_next/static/immutable/chunks/2ocpj6i2oorb_.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1r51enyhosz-u.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/3qfn9_v7pj_rb.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/13f5hjswluuex.js","/_next/static/immutable/chunks/0a8eymjz3e95j.js"],"FilesView"] 52:T1f5a,"use client"; import { useEffect, useRef, useState, type KeyboardEvent, type PointerEvent, type ReactNode } from "react"; import { AnimatePresence, motion, useMotionValue, useReducedMotion, useSpring, useTransform } from "motion/react"; const FOLLOW = { stiffness: 360, damping: 30, mass: 0.45 } as const; export type CursorLensProps = { base: ReactNode; detail: ReactNode; label: string; instructions?: string; size?: number; zoom?: number; className?: string; }; export function CursorLens({ base, detail, label, instructions = "Use the arrow keys to move the lens. Press Escape to hide it.", size = 132, zoom = 1.35, className = "", }: CursorLensProps) { const resolvedSize = Number.isFinite(size) ? Math.max(44, size) : 132; const resolvedZoom = Number.isFinite(zoom) ? Math.max(1, zoom) : 1.35; const root = useRef(null); const pointerFocus = useRef(false); const touchGesture = useRef<{ pointerId: number; startX: number; startY: number; moved: boolean; } | null>(null); const [hovered, setHovered] = useState(false); const [touchPinned, setTouchPinned] = useState(false); const [keyboardVisible, setKeyboardVisible] = useState(false); const [rootSize, setRootSize] = useState({ width: 0, height: 0 }); const visible = hovered || touchPinned || keyboardVisible; const reduced = useReducedMotion() === true; const rawX = useMotionValue(0); const rawY = useMotionValue(0); const x = useSpring(rawX, FOLLOW); const y = useSpring(rawY, FOLLOW); const springTransform = useTransform([x, y], ([latestX, latestY]) => `translate3d(${Number(latestX) - resolvedSize / 2}px, ${Number(latestY) - resolvedSize / 2}px, 0)`, ); const rawTransform = useTransform([rawX, rawY], ([latestX, latestY]) => `translate3d(${Number(latestX) - resolvedSize / 2}px, ${Number(latestY) - resolvedSize / 2}px, 0)`, ); const springDetailTransform = useTransform([x, y], ([latestX, latestY]) => `translate3d(${resolvedSize / 2 - Number(latestX) * resolvedZoom}px, ${resolvedSize / 2 - Number(latestY) * resolvedZoom}px, 0) scale(${resolvedZoom})`, ); const rawDetailTransform = useTransform([rawX, rawY], ([latestX, latestY]) => `translate3d(${resolvedSize / 2 - Number(latestX) * resolvedZoom}px, ${resolvedSize / 2 - Number(latestY) * resolvedZoom}px, 0) scale(${resolvedZoom})`, ); const transform = reduced ? rawTransform : springTransform; const detailTransform = reduced ? rawDetailTransform : springDetailTransform; useEffect(() => { const node = root.current; if (!node) return; const measure = () => { const next = { width: node.clientWidth, height: node.clientHeight }; setRootSize((current) => current.width === next.width && current.height === next.height ? current : next); }; measure(); if (typeof ResizeObserver === "undefined") { window.addEventListener("resize", measure); return () => window.removeEventListener("resize", measure); } const observer = new ResizeObserver(measure); observer.observe(node); return () => observer.disconnect(); }, []); const locate = (clientX: number, clientY: number) => { const box = root.current?.getBoundingClientRect(); if (!box) return; rawX.set(Math.max(0, Math.min(box.width, clientX - box.left))); rawY.set(Math.max(0, Math.min(box.height, clientY - box.top))); }; const pointerMove = (event: PointerEvent) => { locate(event.clientX, event.clientY); if (event.pointerType !== "touch") { setHovered(true); return; } const gesture = touchGesture.current; if ( gesture && gesture.pointerId === event.pointerId && Math.hypot(event.clientX - gesture.startX, event.clientY - gesture.startY) > 8 ) { gesture.moved = true; } }; const keyDown = (event: KeyboardEvent) => { const step = event.shiftKey ? 24 : 10; const box = root.current?.getBoundingClientRect(); if (!box) return; let nextX = rawX.get() || box.width / 2; let nextY = rawY.get() || box.height / 2; if (event.key === "ArrowLeft") nextX -= step; else if (event.key === "ArrowRight") nextX += step; else if (event.key === "ArrowUp") nextY -= step; else if (event.key === "ArrowDown") nextY += step; else if (event.key === "Escape") { setHovered(false); setTouchPinned(false); setKeyboardVisible(false); return; } else return; event.preventDefault(); rawX.set(Math.max(0, Math.min(box.width, nextX))); rawY.set(Math.max(0, Math.min(box.height, nextY))); setKeyboardVisible(true); }; return (

{ if (event.pointerType !== "touch") setHovered(false); }} onPointerDown={(event) => { pointerFocus.current = true; if (event.pointerType === "touch") { locate(event.clientX, event.clientY); touchGesture.current = { pointerId: event.pointerId, startX: event.clientX, startY: event.clientY, moved: false, }; } }} onPointerUp={(event) => { pointerFocus.current = false; if (event.pointerType !== "touch") return; const gesture = touchGesture.current; touchGesture.current = null; if (!gesture || gesture.pointerId !== event.pointerId || gesture.moved) return; setKeyboardVisible(false); setTouchPinned((pinned) => !pinned); }} onPointerCancel={(event) => { pointerFocus.current = false; if (touchGesture.current?.pointerId === event.pointerId) { touchGesture.current = null; } }} onFocus={() => { if (pointerFocus.current) return; const box = root.current?.getBoundingClientRect(); if (box) { rawX.set(box.width / 2); rawY.set(box.height / 2); } }} onBlur={() => { pointerFocus.current = false; touchGesture.current = null; setHovered(false); setTouchPinned(false); setKeyboardVisible(false); }} onKeyDown={keyDown} className={`relative isolate min-h-[240px] w-full overflow-hidden rounded-[10px] outline-none focus-visible:shadow-[0_0_0_3px_rgba(69,104,255,.28)] ${className}`} style={{ touchAction: "pan-y" }} >

{base}

{visible ? ( {detail} ) : null} {instructions}

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Cursor Lens

Installation

Files

components

Styles