34 lines
894 B
TypeScript
34 lines
894 B
TypeScript
import type { Ref } from 'vue';
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export default (isScrollAtTop: Ref<boolean>, isScrollAtBottom: Ref<boolean>) => {
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// Do lock for a wheel when scrolling
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let lock = false;
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let lockTimeout: any = null;
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function lockScroll() {
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clearTimeout(lockTimeout);
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lock = true;
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lockTimeout = setTimeout(() => {
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lock = false;
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}, 50);
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}
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return (deltaY: number, smoothOffset = false) => {
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const originScroll =
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// Pass origin wheel when on the top
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(deltaY < 0 && isScrollAtTop.value) ||
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// Pass origin wheel when on the bottom
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(deltaY > 0 && isScrollAtBottom.value);
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if (smoothOffset && originScroll) {
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// No need lock anymore when it's smooth offset from touchMove interval
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clearTimeout(lockTimeout);
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lock = false;
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} else if (!originScroll || lock) {
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lockScroll();
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}
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return !lock && originScroll;
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};
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};
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