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Rename variables

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This commit is contained in:
Sander Steenhuis
2018-02-20 22:28:12 +01:00
parent c82eba05d1
commit 051ccad29a
1 changed files with 17 additions and 14 deletions
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31
browser/components/MarkdownSplitEditor.js
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@@ -39,25 +39,28 @@ class MarkdownSplitEditor extends React.Component {
targetHeight = _.get(codeDoc, 'height') targetHeight = _.get(codeDoc, 'height')
} }
const factor = srcTop / srcHeight const distance = (targetHeight * srcTop / srcHeight) - targetTop
const previewTarget = targetHeight * factor const framerate = 1000 / 60
const distance = previewTarget - targetTop const frames = 20
const refractory = frames * framerate
this.userScroll = false this.userScroll = false
const s = 20
let i = s let frame = 0
let f, t let scrollPos, time
const timer = setInterval(() => { const timer = setInterval(() => {
t = (s - i) / s time = frame / frames
f = t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t scrollPos = time < 0.5
if (e.doc) _.set(previewDoc, 'body.scrollTop', targetTop + f * distance) ? 2 * time * time // ease in
else _.get(this, 'refs.code.editor').scrollTo(0, targetTop + f * distance) : -1 + (4 - 2 * time) * time // ease out
if (!i) { 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) clearInterval(timer)
setTimeout(() => { this.userScroll = true }, 400) setTimeout(() => { this.userScroll = true }, refractory)
} }
i -= 1 frame++
}, 1000 / 60) }, framerate)
} }
} }