feat(ui): vendor Aceternity registry components + showcase gallery
Vendor 50 Aceternity UI components into components/ui from the official registry (ui.aceternity.com/registry/<slug>.json), adapted for this template's stack: Tailwind v4, motion/react 13, cn util, React 19. Add a live showcase gallery (/ui + /docs/... navigation is unchanged): app/ui/page.tsx renders <ShowcaseGallery> with 30+ demos — 3d-pin, aurora, background-beams, bento, card-stack, card-spotlight, direction-aware-hover, encrypted-text, evervault-card, flip-words, hero-highlight, hero-parallax, infinite-moving-cards, moving-border, sparkles, tracing-beam, animated-tooltip, typewriter-effect, placeholders-and-vanish-input and friends. Toolchain stays zero-warning: vendored animation code is scoped in eslint.config.mjs (react-hooks/react-compiler advisory rules, no-any, prefer-const, no-img-element) so app code keeps a 0-error gate. typecheck, build, 7 vitest tests and 2 test suites all green.
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"use client";
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import React, { useState, useRef, useEffect } from "react";
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import { motion, AnimatePresence } from "motion/react";
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import { cn } from "@/lib/utils";
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export const Tooltip = ({
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content,
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children,
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containerClassName,
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}: {
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content: string | React.ReactNode;
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children: React.ReactNode;
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containerClassName?: string;
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}) => {
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const [isVisible, setIsVisible] = useState(false);
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const [mouse, setMouse] = useState<{ x: number; y: number }>({ x: 0, y: 0 });
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const [height, setHeight] = useState(0);
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const [position, setPosition] = useState<{ x: number; y: number }>({
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x: 0,
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y: 0,
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});
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const contentRef = useRef<HTMLDivElement>(null);
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const containerRef = useRef<HTMLDivElement>(null);
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useEffect(() => {
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if (isVisible && contentRef.current) {
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setHeight(contentRef.current.scrollHeight);
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}
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}, [isVisible, content]);
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const calculatePosition = (mouseX: number, mouseY: number) => {
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if (!contentRef.current || !containerRef.current) return { x: mouseX + 12, y: mouseY + 12 };
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const tooltip = contentRef.current;
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const container = containerRef.current;
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const containerRect = container.getBoundingClientRect();
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const viewportWidth = window.innerWidth;
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const viewportHeight = window.innerHeight;
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// Get tooltip dimensions
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const tooltipWidth = 240; // min-w-[15rem] = 240px
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const tooltipHeight = tooltip.scrollHeight;
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// Calculate absolute position relative to viewport
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const absoluteX = containerRect.left + mouseX;
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const absoluteY = containerRect.top + mouseY;
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let finalX = mouseX + 12;
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let finalY = mouseY + 12;
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// Check if tooltip goes beyond right edge
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if (absoluteX + 12 + tooltipWidth > viewportWidth) {
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finalX = mouseX - tooltipWidth - 12;
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}
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// Check if tooltip goes beyond left edge
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if (absoluteX + finalX < 0) {
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finalX = -containerRect.left + 12;
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}
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// Check if tooltip goes beyond bottom edge
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if (absoluteY + 12 + tooltipHeight > viewportHeight) {
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finalY = mouseY - tooltipHeight - 12;
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}
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// Check if tooltip goes beyond top edge
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if (absoluteY + finalY < 0) {
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finalY = -containerRect.top + 12;
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}
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return { x: finalX, y: finalY };
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};
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const updateMousePosition = (mouseX: number, mouseY: number) => {
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setMouse({ x: mouseX, y: mouseY });
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const newPosition = calculatePosition(mouseX, mouseY);
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setPosition(newPosition);
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};
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const handleMouseEnter = (e: React.MouseEvent<HTMLDivElement>) => {
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setIsVisible(true);
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const rect = e.currentTarget.getBoundingClientRect();
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const mouseX = e.clientX - rect.left;
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const mouseY = e.clientY - rect.top;
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updateMousePosition(mouseX, mouseY);
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};
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const handleMouseLeave = () => {
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setMouse({ x: 0, y: 0 });
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setPosition({ x: 0, y: 0 });
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setIsVisible(false);
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};
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const handleMouseMove = (e: React.MouseEvent<HTMLDivElement>) => {
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if (!isVisible) return;
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const rect = e.currentTarget.getBoundingClientRect();
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const mouseX = e.clientX - rect.left;
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const mouseY = e.clientY - rect.top;
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updateMousePosition(mouseX, mouseY);
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};
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const handleTouchStart = (e: React.TouchEvent<HTMLDivElement>) => {
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const touch = e.touches[0];
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const rect = e.currentTarget.getBoundingClientRect();
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const mouseX = touch.clientX - rect.left;
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const mouseY = touch.clientY - rect.top;
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updateMousePosition(mouseX, mouseY);
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setIsVisible(true);
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};
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const handleTouchEnd = () => {
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// Delay hiding to allow for tap interaction
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setTimeout(() => {
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setIsVisible(false);
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setMouse({ x: 0, y: 0 });
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setPosition({ x: 0, y: 0 });
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}, 2000);
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};
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const handleClick = (e: React.MouseEvent<HTMLDivElement>) => {
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// Toggle visibility on click for mobile devices
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if (window.matchMedia("(hover: none)").matches) {
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e.preventDefault();
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if (isVisible) {
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setIsVisible(false);
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setMouse({ x: 0, y: 0 });
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setPosition({ x: 0, y: 0 });
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} else {
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const rect = e.currentTarget.getBoundingClientRect();
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const mouseX = e.clientX - rect.left;
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const mouseY = e.clientY - rect.top;
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updateMousePosition(mouseX, mouseY);
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setIsVisible(true);
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}
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}
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};
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// Update position when tooltip becomes visible or content changes
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useEffect(() => {
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if (isVisible && contentRef.current) {
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const newPosition = calculatePosition(mouse.x, mouse.y);
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setPosition(newPosition);
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}
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}, [isVisible, height, mouse.x, mouse.y]);
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return (
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<div
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ref={containerRef}
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className={cn("relative inline-block", containerClassName)}
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onMouseEnter={handleMouseEnter}
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onMouseLeave={handleMouseLeave}
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onMouseMove={handleMouseMove}
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onTouchStart={handleTouchStart}
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onTouchEnd={handleTouchEnd}
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onClick={handleClick}
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>
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{children}
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<AnimatePresence>
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{isVisible && (
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<motion.div
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key={String(isVisible)}
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initial={{ height: 0, opacity: 1 }}
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animate={{ height, opacity: 1 }}
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exit={{ height: 0, opacity: 0 }}
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transition={{
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type: "spring",
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stiffness: 200,
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damping: 20,
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}}
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className="pointer-events-none absolute z-50 min-w-[15rem] overflow-hidden rounded-md border border-transparent bg-white shadow-sm ring-1 shadow-black/5 ring-black/5 dark:bg-neutral-900 dark:shadow-white/10 dark:ring-white/5"
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style={{
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top: position.y,
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left: position.x,
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}}
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>
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<div
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ref={contentRef}
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className="p-2 text-sm text-neutral-600 md:p-4 dark:text-neutral-400"
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>
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{content}
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</div>
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</motion.div>
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)}
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</AnimatePresence>
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</div>
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);
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};
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