erikghandClaude Opus 5
5b400cb161
Diez primitivas que dan a la landing el "gráfico y movimiento" que pidió la dueña, todas con guarda de prefers-reduced-motion: - FondoPuntos / PatronPuntos — el patrón de puntos del manual - TarjetaSpotlight, TextoDesenfoque, ContadorNumero — realce y reveal - Carrusel — deslizable, con contador, autoplay pausable - Icono, SimboloTresLineas, IlustracionInflexion — línea, sin relleno - FondoFoto — duotono azul/dorado sobre foto useAutoStep en lib/motion.ts comparte la forma del autoplay del carrusel para indicadores de paso que no son carrusel. IlustracionInflexion documenta un detalle que muerde: motion.path aplica su propio andamiaje de dasharray aunque no reciba initial/animate, así que la rama de reduced motion renderiza <path> planos en vez de intentar neutralizar los animados. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
60 lines
2.2 KiB
TypeScript
60 lines
2.2 KiB
TypeScript
import { useEffect, useState } from 'react';
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import type { Variants } from 'framer-motion';
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// EaseOutExpo — smooth editorial deceleration
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export const easeOutExpo = [0.22, 1, 0.36, 1] as const;
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export const fadeInUp: Variants = {
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hidden: { opacity: 0, y: 20 },
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visible: { opacity: 1, y: 0, transition: { duration: 0.5, ease: easeOutExpo } },
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};
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export const staggerContainer: Variants = {
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hidden: {},
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visible: { transition: { staggerChildren: 0.1 } },
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};
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export const viewportOnce = { once: true, amount: 0.3 } as const;
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// Hook: returns true if user prefers reduced motion. Components use this to
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// disable Framer Motion animations (per spec, a11y requirement).
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export function usePrefersReducedMotion() {
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const [reduced, setReduced] = useState(false);
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useEffect(() => {
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const mq = window.matchMedia('(prefers-reduced-motion: reduce)');
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setReduced(mq.matches);
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const handler = () => setReduced(mq.matches);
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mq.addEventListener('change', handler);
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return () => mq.removeEventListener('change', handler);
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}, []);
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return reduced;
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}
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// Pass to <motion.*> as motion-reduced guard. When reduced, variants resolve to visible immediately.
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export const motionProps = (reduced: boolean) =>
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reduced
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? { initial: 'visible' as const, animate: 'visible' as const, whileInView: undefined, viewport: undefined }
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: {};
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// Cycles through `count` steps on its own (Mecanismo, ComoEmpezar): each
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// manual change restarts the dwell timer, hovering pauses it, and it never
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// advances at all for reduced-motion users — same shape as the Carrusel
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// autoplay, for step indicators that aren't a carousel.
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export function useAutoStep(count: number, intervalMs = 3500) {
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const reduced = usePrefersReducedMotion();
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const [active, setActive] = useState(0);
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const [paused, setPaused] = useState(false);
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useEffect(() => {
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if (reduced || paused || count <= 1) return;
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const id = setTimeout(() => setActive((a) => (a + 1) % count), intervalMs);
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return () => clearTimeout(id);
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}, [active, reduced, paused, count, intervalMs]);
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return {
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active,
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setActive,
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hoverProps: { onMouseEnter: () => setPaused(true), onMouseLeave: () => setPaused(false) },
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};
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}
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