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Rename variables

This commit is contained in:
Sander Steenhuis
2018-02-20 22:28:12 +01:00
parent c82eba05d1
commit 051ccad29a

View File

@@ -39,25 +39,28 @@ class MarkdownSplitEditor extends React.Component {
targetHeight = _.get(codeDoc, 'height')
}
const factor = srcTop / srcHeight
const previewTarget = targetHeight * factor
const distance = previewTarget - targetTop
const distance = (targetHeight * srcTop / srcHeight) - targetTop
const framerate = 1000 / 60
const frames = 20
const refractory = frames * framerate
this.userScroll = false
const s = 20
let i = s
let f, t
let frame = 0
let scrollPos, time
const timer = setInterval(() => {
t = (s - i) / s
f = t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t
if (e.doc) _.set(previewDoc, 'body.scrollTop', targetTop + f * distance)
else _.get(this, 'refs.code.editor').scrollTo(0, targetTop + f * distance)
if (!i) {
time = frame / frames
scrollPos = time < 0.5
? 2 * time * time // ease in
: -1 + (4 - 2 * time) * time // ease out
if (e.doc) _.set(previewDoc, 'body.scrollTop', targetTop + scrollPos * distance)
else _.get(this, 'refs.code.editor').scrollTo(0, targetTop + scrollPos * distance)
if (frame >= frames) {
clearInterval(timer)
setTimeout(() => { this.userScroll = true }, 400)
setTimeout(() => { this.userScroll = true }, refractory)
}
i -= 1
}, 1000 / 60)
frame++
}, framerate)
}
}