OpenCut/apps/web/src/components/landing/handlebars.tsx

106 lines
3.5 KiB
TypeScript

"use client";
import {
motion,
useMotionTemplate,
useMotionValue,
useMotionValueEvent,
useTransform,
} from "motion/react";
import { type PropsWithChildren, useEffect, useRef, useState } from "react";
type HandlebarsProps = PropsWithChildren;
export function Handlebars({ children }: HandlebarsProps) {
const containerRef = useRef<HTMLDivElement>(null);
const [width, setWidth] = useState(0);
const [leftHandle, setLeftHandle] = useState(0);
const [rightHandle, setRightHandle] = useState(width);
const leftHandleX = useMotionValue(0);
const rightHandleX = useMotionValue(width);
useEffect(() => {
const el = containerRef.current;
if (!el) return;
const observer = new ResizeObserver(() => {
setWidth(el.offsetWidth);
setRightHandle(el.offsetWidth);
rightHandleX.set(el.offsetWidth);
});
observer.observe(el);
return () => observer.disconnect();
}, [rightHandleX.set]);
useMotionValueEvent(leftHandleX, "change", () => {
setLeftHandle(leftHandleX.get());
});
useMotionValueEvent(rightHandleX, "change", () => {
setRightHandle(rightHandleX.get());
});
const leftGradient = useTransform(leftHandleX, [0, width - 10], [0, 100]);
const rightGradient = useTransform(rightHandleX, [0, width + 10], [0, 100]);
return (
<div className="flex justify-center gap-4 leading-16">
<div ref={containerRef} className="relative -rotate-[2.76deg] mt-0.5">
<div className="absolute inset-0 w-full h-full rounded-2xl border border-yellow-500 flex justify-between z-1">
<motion.div
className="absolute z-10 left-0 h-full border border-yellow-500 w-7 rounded-full bg-accent flex items-center justify-center select-none"
style={{
x: leftHandleX,
}}
drag="x"
dragConstraints={{ left: 0, right: rightHandle - 60 }}
dragElastic={0}
dragMomentum={false}
whileHover={{ scale: 1.05, cursor: "grab" }}
whileDrag={{ scale: 1.1, cursor: "grabbing" }}
transition={{ type: "spring", stiffness: 400, damping: 30 }}
>
<div className="w-2 h-8 rounded-full bg-yellow-500" />
</motion.div>
<motion.div
className="absolute z-10 -left-[30px] h-full border border-yellow-500 w-7 rounded-full bg-accent flex items-center justify-center select-none"
style={{
x: rightHandleX,
}}
drag="x"
dragConstraints={{
left: leftHandle + 60,
right: width,
}}
dragElastic={0}
dragMomentum={false}
whileHover={{ scale: 1.05, cursor: "grab" }}
whileDrag={{ scale: 1.1, cursor: "grabbing" }}
transition={{ type: "spring", stiffness: 400, damping: 30 }}
>
<div className="w-2 h-8 rounded-full bg-yellow-500" />
</motion.div>
</div>
<motion.span
className="inline-flex items-center justify-center w-full h-full px-9 relative rounded-2xl will-change-auto"
style={{
mask: useMotionTemplate`linear-gradient(90deg,
rgba(255, 255, 255, 0) 0%,
rgba(255, 255, 255, 0) ${leftGradient}%,
rgba(0, 0, 0) ${leftGradient}%,
rgba(0, 0, 0) ${rightGradient}%,
rgba(255, 255, 255, 0) ${rightGradient}%,
rgba(255, 255, 255, 0) 100%)`,
}}
>
{children}
</motion.span>
</div>
</div>
);
}