wehub-resource-sync
68 lines
2.1 KiB
TypeScript
68 lines
2.1 KiB
TypeScript
'use client';
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import { cn } from '@/lib/utils';
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import { type MotionProps, motion } from 'motion/react';
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import { type CSSProperties, type ElementType, type JSX, memo, useMemo, useRef } from 'react';
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type MotionComponentType = React.FC<
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MotionProps & React.HTMLAttributes<HTMLElement> & { children?: React.ReactNode }
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>;
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export type TextShimmerProps = {
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children: string;
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as?: ElementType;
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className?: string;
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duration?: number;
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spread?: number;
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};
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/* eslint-disable react-hooks/refs -- Ref-based cache for motion.create component identity */
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const ShimmerComponent = ({
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children,
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as: Component = 'p',
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className,
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duration = 2,
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spread = 2,
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}: TextShimmerProps) => {
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const motionRef = useRef<MotionComponentType | null>(null);
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const prevComponentRef = useRef(Component);
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if (!motionRef.current || prevComponentRef.current !== Component) {
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motionRef.current = motion.create(
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Component as keyof JSX.IntrinsicElements,
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) as unknown as MotionComponentType;
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prevComponentRef.current = Component;
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}
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const MotionComponent = motionRef.current;
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const dynamicSpread = useMemo(() => (children?.length ?? 0) * spread, [children, spread]);
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return (
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<MotionComponent
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animate={{ backgroundPosition: '0% center' }}
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className={cn(
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'relative inline-block bg-[length:250%_100%,auto] bg-clip-text text-transparent',
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'[--bg:linear-gradient(90deg,#0000_calc(50%-var(--spread)),var(--color-background),#0000_calc(50%+var(--spread)))] [background-repeat:no-repeat,padding-box]',
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className,
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)}
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initial={{ backgroundPosition: '100% center' }}
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style={
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{
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'--spread': `${dynamicSpread}px`,
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backgroundImage:
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'var(--bg), linear-gradient(var(--color-muted-foreground), var(--color-muted-foreground))',
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} as CSSProperties
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}
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transition={{
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repeat: Number.POSITIVE_INFINITY,
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duration,
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ease: 'linear',
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}}
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>
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{children}
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</MotionComponent>
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);
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};
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/* eslint-enable react-hooks/refs */
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export const Shimmer = memo(ShimmerComponent);
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