20 lines
611 B
JavaScript
20 lines
611 B
JavaScript
export function getScrollContainer () {
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return document.scrollingElement
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}
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export function addScrollListener (listener) {
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document.addEventListener('scroll', listener)
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}
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export function removeScrollListener (listener) {
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document.removeEventListener('scroll', listener)
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}
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export function getOffsetHeight () {
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// in a subscroller, this would be element.offsetHeight, but here
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// document.scrollingElement.offsetHeight is too short for some reason.
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// This one is exact, such that scrollHeight - scrollTop - offsetHeight === 0
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// when you are scrolled to the bottom.
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return window.innerHeight
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}
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