You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

72 lines
1.6 KiB
TypeScript

import { type ClassValue, clsx } from 'clsx'
import { twMerge } from 'tailwind-merge'
import { cubicOut } from 'svelte/easing'
import type { TransitionConfig } from 'svelte/transition'
export function cn(...inputs: ClassValue[]) {
return twMerge(clsx(inputs))
}
type FlyAndScaleParams = {
y?: number
x?: number
start?: number
duration?: number
}
export const flyAndScale = (
node: Element,
params: FlyAndScaleParams = {
y: -8,
x: 0,
start: 0.95,
duration: 150,
},
): TransitionConfig => {
const style = getComputedStyle(node)
const transform = style.transform === 'none' ? '' : style.transform
const scaleConversion = (
valueA: number,
scaleA: [number, number],
scaleB: [number, number],
) => {
const [minA, maxA] = scaleA
const [minB, maxB] = scaleB
const percentage = (valueA - minA) / (maxA - minA)
const valueB = percentage * (maxB - minB) + minB
return valueB
}
const styleToString = (
style: Record<string, number | string | undefined>,
): string => {
return Object.keys(style).reduce((str, key) => {
if (style[key] === undefined) return str
return str + `${key}:${style[key]};`
}, '')
}
return {
duration: params.duration ?? 200,
delay: 0,
css: (t) => {
const y = scaleConversion(t, [0, 1], [params.y ?? 5, 0])
const x = scaleConversion(t, [0, 1], [params.x ?? 0, 0])
const scale = scaleConversion(
t,
[0, 1],
[params.start ?? 0.95, 1],
)
return styleToString({
transform: `${transform} translate3d(${x}px, ${y}px, 0) scale(${scale})`,
opacity: t,
})
},
easing: cubicOut,
}
}