mirror of
https://github.com/nolanlawson/pinafore
synced 2024-12-12 18:28:03 +01:00
fix: use native smooth scroll when possible (#751)
This commit is contained in:
parent
2280ff2832
commit
4b028b1a62
@ -224,4 +224,4 @@
|
||||
}
|
||||
}
|
||||
}
|
||||
</script>
|
||||
</script>
|
||||
|
@ -2,7 +2,7 @@
|
||||
const easingOutQuint = (x, t, b, c, d) =>
|
||||
c * ((t = t / d - 1) * t * t * t * t + 1) + b
|
||||
|
||||
const scroll = (node, key, target) => {
|
||||
function smoothScrollPolyfill (node, key, target) {
|
||||
const startTime = Date.now()
|
||||
const offset = node[key]
|
||||
const gap = target - offset
|
||||
@ -44,4 +44,32 @@ const scroll = (node, key, target) => {
|
||||
return cancel
|
||||
}
|
||||
|
||||
export const smoothScrollToTop = node => scroll(node, 'scrollTop', 0)
|
||||
function testSupportsSmoothScroll () {
|
||||
let supports = false
|
||||
try {
|
||||
let div = document.createElement('div')
|
||||
div.scrollTo({
|
||||
top: 0,
|
||||
get behavior () {
|
||||
supports = true
|
||||
return 'smooth'
|
||||
}
|
||||
})
|
||||
} catch (err) {} // Edge throws an error
|
||||
return supports
|
||||
}
|
||||
|
||||
const smoothScrollSupported = process.browser && testSupportsSmoothScroll()
|
||||
|
||||
export function smoothScrollToTop (node) {
|
||||
if (smoothScrollSupported) {
|
||||
console.log('using native smooth scroll')
|
||||
return node.scrollTo({
|
||||
top: 0,
|
||||
behavior: 'smooth'
|
||||
})
|
||||
} else {
|
||||
console.log('using polyfilled smooth scroll')
|
||||
return smoothScrollPolyfill(node, 'scrollTop', 0)
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user