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Merge branch 'fix_smooth_scrolling'

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This commit is contained in:
Oliver Blanthorn 2019-05-30 15:00:28 +01:00
commit d5872f7b64
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1 changed files with 13 additions and 3 deletions
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16
src/content/scrolling.ts
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@ -54,9 +54,19 @@ class ScrollingData {
if (elapsed >= this.duration || this.elem[this.pos] === this.endPos)
return this.endPos
const result = ((this.endPos - this.startPos) * elapsed) / this.duration
if (result >= 1 || result <= -1) return this.startPos + result
return this.elem[this.pos] + (this.startPos < this.endPos ? 1 : -1)
let result = this.startPos + (((this.endPos - this.startPos) * elapsed) / this.duration)
if (this.startPos < this.endPos) {
// We need to ceil() because only highdpi screens have a decimal this.elem[this.pos]
result = Math.ceil(result)
// We *have* to make progress, otherwise we'll think the element can't be scrolled
if (result == this.elem[this.pos])
result += 1
} else {
result = Math.floor(result)
if (result == this.elem[this.pos])
result -= 1
}
return result
}
/** Updates the position of this.elem, returns true if the element has been scrolled, false otherwise. */