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feat: add origin params in moveToIdx #423

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feat: add origin params in moveToIdx #423

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14 changes: 12 additions & 2 deletions src/core/slider.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,18 @@ function Slider<O, C, H extends string>(
instance.emit('created')
}

function moveToIdx(idx, absolute, animation) {
const distance = instance.track.idxToDist(idx, absolute)
function moveToIdx(idx, absolute, animation, origin?: 'auto' | 'center') {
let distance: number

if (!origin || origin === 'auto') {
distance = instance.track.idxToDist(idx, absolute)
} else {
const { distance: prevDistance, size } =
instance.track.details.slides[idx]
const elementCenter = prevDistance + size / 2
distance = Math.abs(0.5 - elementCenter)
}

if (!distance) return
const defaultAnimation = instance.options.defaultAnimation
instance.animator.start([
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