51: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/15bpbjna9-vr3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1ynd3dcge2kn1.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/0n9w9riw96l80.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/1tge7vcvsb70s.js","/_next/static/immutable/chunks/35ju_ac0ysz07.js"],"RegistryDependencies"] 52: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/15bpbjna9-vr3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1ynd3dcge2kn1.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/0n9w9riw96l80.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/1tge7vcvsb70s.js","/_next/static/immutable/chunks/35ju_ac0ysz07.js"],"Installation"] 53: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/15bpbjna9-vr3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/0agonoz1szsjm.js","/_next/static/immutable/chunks/1ynd3dcge2kn1.js","/_next/static/immutable/chunks/0krdn-21gkgjt.js","/_next/static/immutable/chunks/0n9w9riw96l80.js","/_next/static/immutable/chunks/0w75qangey2ys.js","/_next/static/immutable/chunks/1tge7vcvsb70s.js","/_next/static/immutable/chunks/35ju_ac0ysz07.js"],"FilesView"] 54:T131c,"use client"; import { motion, useAnimationFrame, useMotionValue, useTransform, } from "motion/react"; import React, { type CSSProperties, type ElementType, forwardRef, useMemo, useRef, } from "react"; import { cn } from "@/lib/utils"; function useMousePositionRef( containerRef: React.RefObject, ) { const positionRef = useRef({ x: 0, y: 0 }); React.useEffect(() => { const handleMouseMove = (e: MouseEvent) => { if (!containerRef.current) return; const rect = containerRef.current.getBoundingClientRect(); positionRef.current = { x: e.clientX - rect.left, y: e.clientY - rect.top, }; }; window.addEventListener("mousemove", handleMouseMove); return () => window.removeEventListener("mousemove", handleMouseMove); }, [containerRef]); return positionRef; } type CSSPropertiesWithValues = { [K in keyof CSSProperties]: string | number }; interface StyleValue { from: CSSPropertiesWithValues[T]; to: CSSPropertiesWithValues[T]; } export type TextCursorProximityProps = { children: React.ReactNode; as?: ElementType; styles: Partial<{ [K in keyof CSSPropertiesWithValues]: StyleValue }>; containerRef: React.RefObject; radius?: number; falloff?: "linear" | "exponential" | "gaussian"; className?: string; } & React.HTMLAttributes; export const TextCursorProximity = forwardRef< HTMLSpanElement, TextCursorProximityProps >( ( { children, as, styles, containerRef, radius = 50, falloff = "linear", className, ...props }, ref, ) => { const MotionComponent = useMemo(() => motion.create(as ?? "span"), [as]); const letterRefs = useRef<(HTMLSpanElement | null)[]>([]); const mousePositionRef = useMousePositionRef(containerRef); const text = React.Children.toArray(children).join(""); const letterProximities = useRef( Array(text.replace(/\s/g, "").length) .fill(0) .map(() => { // biome-ignore lint/correctness/useHookAtTopLevel: initialized once as useRef initial value return useMotionValue(0); }), ); const calcFalloff = (distance: number): number => { const norm = Math.min(Math.max(1 - distance / radius, 0), 1); if (falloff === "exponential") return norm ** 2; if (falloff === "gaussian") return Math.exp(-((distance / (radius / 2)) ** 2) / 2); return norm; }; useAnimationFrame(() => { if (!containerRef.current) return; const containerRect = containerRef.current.getBoundingClientRect(); letterRefs.current.forEach((letterRef, index) => { if (!letterRef) return; const rect = letterRef.getBoundingClientRect(); const cx = rect.left + rect.width / 2 - containerRect.left; const cy = rect.top + rect.height / 2 - containerRect.top; const distance = Math.sqrt( (mousePositionRef.current.x - cx) ** 2 + (mousePositionRef.current.y - cy) ** 2, ); letterProximities.current[index]?.set(calcFalloff(distance)); }); }); const words = text.split(" "); let letterIndex = 0; return ( {words.map((word, wordIndex) => ( {word.split("").map((letter) => { const idx = letterIndex++; const proximity = letterProximities.current[idx]; // biome-ignore lint/correctness/useHookAtTopLevel: fallback for missing proximity value const mv = proximity ?? useMotionValue(0); const transformedStyles = Object.fromEntries( Object.entries(styles).map(([key, value]) => [ key, // biome-ignore lint/correctness/useHookAtTopLevel: transform per letter inside render map useTransform(mv, [0, 1], [value.from, value.to]), ]), ); return ( ); })} {wordIndex < words.length - 1 && ( )} ))} {text} ); }, ); TextCursorProximity.displayName = "TextCursorProximity"; 4d:["$","div",null,{"className":"flex flex-col gap-12","children":[["$","div",null,{"className":"pt-10 flex flex-col gap-4","children":[["$","ul",null,{"className":"flex gap-2 flex-wrap","children":[["$","li","motion",{"children":["$","a",null,{"href":"https://www.npmjs.com/package/motion","target":"_blank","rel":"noopener noreferrer","className":"rounded-md border p-2 text-sm flex items-center gap-1 ","children":[["$","svg",null,{"viewBox":"0 0 24 24","className":"size-3","children":["$","path",null,{"d":"M1.763 0C.786 0 0 .786 0 1.763v20.474C0 23.214.786 24 1.763 24h20.474c.977 0 1.763-.786 1.763-1.763V1.763C24 .786 23.214 0 22.237 0zM5.13 5.323l13.837.019-.009 13.836h-3.464l.01-10.382h-3.456L12.04 19.17H5.113z","fill":"currentColor"}]}],["$","span",null,{"className":"text-xs font-medium","children":"motion"}]]}]}]]}],["$","$L51",null,{"registryDependencies":[]}]]}],["$","$L52",null,{"sourceUrl":"https://ui.cnippet.dev/r/text-cursor-proximity.json","proxyUrl":"https://shadcnregistry.com/r/cnippet/text-cursor-proximity","itemId":"@cnippet/text-cursor-proximity"}],["$","section",null,{"className":"flex flex-col gap-4","id":"files","children":[["$","h2",null,{"className":"text-lg md:text-2xl font-bold font-mono","children":"Files"}],["$","$L53",null,{"files":[{"path":"registry/default/motion/text-cursor-proximity.tsx","content":"$54","type":"registry:ui","target":"components/motion/text-cursor-proximity.tsx"}]}]]}],"$L55"]}]

Text Cursor Proximity

Installation

Files

components

Styles