Labs

Components I have built, each one measured, taken apart and ready to copy, and the interaction details I made along the way.

import React, { useCallback, useEffect, useRef, useState } from 'react'; import { useCancelableTimeout } from '@/hooks/useCancelableTimeout'; import { motion, useMotionValue, useReducedMotion, useSpring, useTransform, useVelocity, } from 'framer-motion'; import { NOTE_GRAIN } from '@/lib/paper'; import { AXIS_SPRING, PEEL_SPRING, TAPE_STYLE, clamp, facePolygon, flapPolygon, hashString, pullTarget, restingFold } from '@/lib/note-fold'; import { cn } from '@/lib/utils'; /** How long a touch holds the corner lifted before it settles back. */ const TOUCH_PULSE_MS = 260; interface StickyNoteProps { content?: string; children?: React.ReactNode; color: string; rotate?: 'left' | 'right' | 'none'; className?: string; pinType?: 'pin' | 'tape' | 'none'; href?: string; } const getColorClass = ( color: string) = > { const colorMap: Record <string, string > = { 'yellow': 'bg-daisy-yellow', 'green': 'bg-daisy-green', 'purple': 'bg-daisy-purple', 'blue': 'bg-daisy-blue', 'orange': 'bg-daisy-orange', 'mint': 'bg-emerald-200', 'coral': 'bg-red-200', 'lavender': 'bg-violet-200', 'peach': 'bg-orange-200', 'sky': 'bg-sky-200', 'rose': 'bg-pink-200', 'lime': 'bg-lime-200', 'cyan': 'bg-cyan-200', 'amber': 'bg-amber-200', 'teal': 'bg-teal-200', }; return colorMap [ color ] | | 'bg-white'; }; const StickyNote: React.FC <StickyNoteProps > = ( { content, children, color, rotate = 'none', className = "", pinType = 'pin', href }) = > { const colorClass = getColorClass ( color); const rotateClass = rotate = = = 'left'? 'card-rotate-left': rotate = = = 'right'? 'card-rotate-right': ''; const noteRef = useRef <HTMLDivElement > ( null); const bodyRef = useRef <HTMLDivElement > ( null); const faceRef = useRef <HTMLDivElement > ( null); const [ hasPeeled, setHasPeeled ] = useState ( false); const prefersReducedMotion = useReducedMotion ()?? false; // Per-note character: every note rests with a slightly different curl size // and fold axis, like notes handled by a person rather than stamped out. const seed = hashString ( `${color}:${content?? 'note'}`); const { restPeel, restAxis } = restingFold ( seed); // Two degrees of freedom on two different springs (see lib/note-fold). const peel = useMotionValue ( restPeel); const peelSpring = useSpring ( peel, PEEL_SPRING); const axis = useMotionValue ( restAxis); const axisSpring = useSpring ( axis, AXIS_SPRING); const peelVelocity = useVelocity ( peelSpring); const faceClip = useTransform ( [ peelSpring, axisSpring ], ( [ p, a ]: number [ ]) = > facePolygon ( p, a)); const flapClip = useTransform ( [ peelSpring, axisSpring ], ( [ p, a ]: number [ ]) = > flapPolygon ( p, a)); // ── The back of the sheet ──────────────────────────────────────────────── // Just a darker shade of the note's own colour. Read off the face's computed // background so every Tailwind colour class folds correctly without keeping // a second palette in sync. const [ backColor, setBackColor ] = useState <string | null > ( null); useEffect ( () = > { const el = faceRef.current; if (! el) return; const m = getComputedStyle ( el).backgroundColor.match ( / \ d + ( \. \ d +)? / g); if (! m | | m.length < 3) return; const [ r, g, b ] = m.map ( Number); const dark = ( c: number) = > Math.round ( c * 0.78); setBackColor ( `rgb(${dark(r)}, ${dark(g)}, ${dark(b)})`); }, [ colorClass ]); // Cast shadow under the lifted corner: sits lower and drifts a little // further out while the paper is actually moving. const shadowShift = useTransform ( [ peelSpring, peelVelocity ], ( [ p, v ]: number [ ]) = > `translate(${(1 + p * 0.05 + clamp(Math.abs(v) / 1400, 0, 1) * 1.2).toFixed(1)}px, ${(1.5 + p * 0.06 + clamp(Math.abs(v) / 1400, 0, 1) * 1.6).toFixed(1)}px)`); const shadowOpacity = useTransform ( peelSpring, [ restPeel, 70 ], [ 0.16, 0.3 ]); // The blur is fixed. Animating a `filter` value per frame makes Safari // re-rasterise the layer every frame, and inside the scaled, translating // Playground canvas that leaves stale copies of the layer behind. The // softness the peel gains from a larger blur was under 4px at full lift. // The whole sheet reacts to the pull: peeling against the tape twists the // note fractionally around its taped top edge. Under a degree at full peel. const noteTilt = useTransform ( [ peelSpring, axisSpring ], ( [ p, a ]: number [ ]) = > ( p - restPeel) * a * 0.05); // ── Interaction ────────────────────────────────────────────────────────── const pulseSettle = useCancelableTimeout (); const settle = useCallback ( () = > { peel.set ( restPeel); axis.set ( restAxis); }, [ peel, axis, restPeel, restAxis ]); const handlePointerMove = useCallback ( ( e: React.PointerEvent <HTMLDivElement >) = > { if ( prefersReducedMotion | | e.pointerType! = = 'mouse') return; const body = bodyRef.current; if (! body) return; const rect = body.getBoundingClientRect (); const target = pullTarget ( rect.right - e.clientX, rect.bottom - e.clientY, Math.min ( rect.width, rect.height), restPeel, restAxis); peel.set ( target.peel); axis.set ( target.axis); }, [ peel, axis, prefersReducedMotion, restPeel, restAxis ],); const handlePointerDown = useCallback ( ( e: React.PointerEvent <HTMLDivElement >) = > { if ( prefersReducedMotion | | e.pointerType = = = 'mouse') return; // Touch: a quick lift-and-settle pulse instead of pointer tracking. const body = bodyRef.current; if (! body) return; const side = Math.min ( body.offsetWidth, body.offsetHeight); peel.set ( side * 0.3); axis.set ( clamp ( restAxis + 0.12, -0.32, 0.32)); // Tapping again mid-pulse restarts it rather than letting the first // tap's settle land on top of the second tap's lift. pulseSettle.set ( settle, TOUCH_PULSE_MS); }, [ peel, axis, prefersReducedMotion, restAxis, settle, pulseSettle ],); // ── Scroll-triggered entrance (existing behaviour, kept) ──────────────── useEffect ( () = > { if (! pinType | | pinType! = = 'tape') return; // only for tape notes const noteElement = noteRef.current; const observer = new IntersectionObserver ( ( [ entry ]) = > { if ( entry.isIntersecting & &! hasPeeled) { setHasPeeled ( true); } }, { threshold: 0.35, }); if ( noteElement) { observer.observe ( noteElement); } return () = > { if ( noteElement) observer.unobserve ( noteElement); }; }, [ hasPeeled, pinType ]); const note = ( <div className = { `relative ${rotateClass}` } ref = { bodyRef } > <motion.div className = "relative" style = { { rotate: noteTilt, transformOrigin: '50% 6%' } } > { /* drop-shadow on a wrapper OUTSIDE the clip, so the note's contact shadow follows the notched silhouette — where the corner has lifted off the page, its shadow leaves with it. `will-change` gives the filtered subtree its own compositing layer: Safari then applies the filter on the GPU instead of rasterising it into the tiles of whatever scaled ancestor the note sits in. */ } <div style = { { filter: 'drop-shadow(0 1px 1px rgba(80,58,35,0.08)) drop-shadow(1px 4px 4px rgba(80,58,35,0.14))', willChange: 'transform' } } > <motion.div ref = { faceRef } className = { cn ( colorClass, 'relative rounded-[1px] p-4 font-note text-stone-900', className,) } style = { { clipPath: faceClip, backgroundImage: NOTE_GRAIN, boxShadow: 'inset 0 1px 0 rgba(255,255,255,0.3), inset 0 8px 9px -9px rgba(72,52,32,0.2)', } } > { /* Ink sits IN the note. Multiply lets the stock's colour and grain come up through the letterforms instead of the text sitting on top as a flat black layer. The ink is stone-900 rather than pure black on purpose: multiply against #000 is a no-op, so pure black would blend nothing. The blend stays inside the note because the drop-shadow wrapper above is already a stacking context. */ } <span style = { { mixBlendMode: 'multiply', whiteSpace: 'pre-line', letterSpacing: '-0.02em', lineHeight: 1.35, transform: `rotate(${((seed % 7) - 3) * 0.35}deg)` } } > { content | | children } </span > </motion.div > </div > { /* Shadow the folded corner drops onto the face. Blur lives on the wrapper so it isn't cut off by the child's clip. */ } <motion.div className = "absolute inset-0 pointer-events-none" aria-hidden = "true" style = { { filter: 'blur(3px)', opacity: shadowOpacity, transform: shadowShift, willChange: 'transform' } } > <motion.div className = "absolute inset-0" style = { { clipPath: flapClip, background: 'rgba(56,38,12,0.85)' } } / > </motion.div > { /* The folded corner: the same sheet from behind — solid, one shade darker, same grain. No gradients; the flat colour is what makes it read as paper stock rather than film. */ } <motion.div className = "absolute inset-0 pointer-events-none" aria-hidden = "true" style = { { clipPath: flapClip, backgroundColor: backColor?? undefined, backgroundImage: NOTE_GRAIN, } } / > </motion.div > </div >); return ( <div className = { `relative group sticky-note-mobile ${hasPeeled? 'peel-animate': ''}` } ref = { noteRef } onPointerMove = { handlePointerMove } onPointerLeave = { settle } onPointerDown = { handlePointerDown } > { /* Thin, fibrous washi tape holding the note to the board. */ } { pinType = = = 'tape' & & ( <div className = "absolute -top-1.5 left-1/2 -translate-x-1/2 z-10 transition-transform duration-300 group-hover:rotate-6 group-hover:-translate-y-1 pointer-events-none" aria-hidden = "true" style = { TAPE_STYLE } / >) } { href? ( <a href = { href } className = "block transition-transform hover:scale-105" > { note } </a >): ( note) } </div >); }; export default StickyNote; 

Craft

10 films. Tap one to play or pause it

10 films. Hover one to play it