TanTan
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90 lines
3.1 KiB
Plaintext
90 lines
3.1 KiB
Plaintext
"use client";
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import { supportsViewTimeline, supportsScrollTimeline, motionValue } from 'motion-dom';
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import { invariant } from 'motion-utils';
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import { useRef, useCallback, useEffect } from 'react';
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import { scroll } from '../render/dom/scroll/index.mjs';
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import { offsetToViewTimelineRange } from '../render/dom/scroll/utils/offset-to-range.mjs';
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import { useConstant } from '../utils/use-constant.mjs';
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import { useIsomorphicLayoutEffect } from '../utils/use-isomorphic-effect.mjs';
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const createScrollMotionValues = () => ({
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scrollX: motionValue(0),
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scrollY: motionValue(0),
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scrollXProgress: motionValue(0),
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scrollYProgress: motionValue(0),
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});
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const isRefPending = (ref) => {
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if (!ref)
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return false;
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return !ref.current;
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};
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function makeAccelerateConfig(axis, options, container, target) {
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return {
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factory: (animation) => scroll(animation, {
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...options,
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axis,
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container: container?.current || undefined,
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target: target?.current || undefined,
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}),
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times: [0, 1],
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keyframes: [0, 1],
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ease: (v) => v,
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duration: 1,
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};
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}
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function canAccelerateScroll(target, offset) {
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if (typeof window === "undefined")
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return false;
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return target
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? supportsViewTimeline() && !!offsetToViewTimelineRange(offset)
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: supportsScrollTimeline();
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}
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function useScroll({ container, target, ...options } = {}) {
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const values = useConstant(createScrollMotionValues);
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if (canAccelerateScroll(target, options.offset)) {
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values.scrollXProgress.accelerate = makeAccelerateConfig("x", options, container, target);
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values.scrollYProgress.accelerate = makeAccelerateConfig("y", options, container, target);
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}
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const scrollAnimation = useRef(null);
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const needsStart = useRef(false);
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const start = useCallback(() => {
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scrollAnimation.current = scroll((_progress, { x, y, }) => {
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values.scrollX.set(x.current);
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values.scrollXProgress.set(x.progress);
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values.scrollY.set(y.current);
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values.scrollYProgress.set(y.progress);
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}, {
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...options,
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container: container?.current || undefined,
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target: target?.current || undefined,
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});
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return () => {
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scrollAnimation.current?.();
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};
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}, [container, target, JSON.stringify(options.offset)]);
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useIsomorphicLayoutEffect(() => {
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needsStart.current = false;
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if (isRefPending(container) || isRefPending(target)) {
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needsStart.current = true;
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return;
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}
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else {
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return start();
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}
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}, [start]);
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useEffect(() => {
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if (needsStart.current) {
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invariant(!isRefPending(container), "Container ref is defined but not hydrated", "use-scroll-ref");
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invariant(!isRefPending(target), "Target ref is defined but not hydrated", "use-scroll-ref");
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return start();
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}
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else {
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return;
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}
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}, [start]);
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return values;
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}
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export { useScroll };
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//# sourceMappingURL=use-scroll.mjs.map
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