41 lines
1.1 KiB
TypeScript
41 lines
1.1 KiB
TypeScript
import { createEffect, createSignal, on, onCleanup, type Accessor } from "solid-js"
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import { debounce, type Scheduled } from "@solid-primitives/scheduled"
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export function createDebouncedSignal<T>(value: T, ms: number): [Accessor<T>, Scheduled<[value: T]>] {
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const [get, set] = createSignal(value)
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return [get, debounce((v: T) => set(() => v), ms)]
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}
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export function createFadeIn(show: Accessor<boolean>, enabled: Accessor<boolean>) {
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const [alpha, setAlpha] = createSignal(show() ? 1 : 0)
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let revealed = show()
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createEffect(
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on([show, enabled], ([visible, animate]) => {
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if (!visible) {
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setAlpha(0)
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return
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}
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if (!animate || revealed) {
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revealed = true
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setAlpha(1)
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return
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}
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const start = performance.now()
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revealed = true
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setAlpha(0)
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const timer = setInterval(() => {
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const progress = Math.min((performance.now() - start) / 160, 1)
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setAlpha(progress * progress * (3 - 2 * progress))
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if (progress >= 1) clearInterval(timer)
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}, 16)
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onCleanup(() => clearInterval(timer))
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}),
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)
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return alpha
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}
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