mirror of
https://github.com/koel/koel
synced 2024-11-15 08:57:16 +00:00
28 lines
763 B
TypeScript
28 lines
763 B
TypeScript
/**
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* A utility that aims to replace jQuery for the most basic DOM methods.
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*/
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export const $ = {
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is: (el: Element, selector: string) => el.matches(selector),
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addClass: (el: Element | null, className: string) => el?.classList.add(className),
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removeClass: (el: Element | null, className: string) => el?.classList.remove(className),
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scrollTo (el: Element, to: number, duration: number, cb?: Closure) {
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if (duration <= 0 || !el) {
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return
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}
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const difference = to - el.scrollTop
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const perTick = difference / duration * 10
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window.setTimeout(() => {
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el.scrollTop = el.scrollTop + perTick
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if (el.scrollTop === to) {
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cb && cb()
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return
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}
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this.scrollTo(el, to, duration - 10)
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}, 10)
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}
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}
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