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Remove unnecessary assertion

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Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>
This commit is contained in:
Tilman Vatteroth 2021-05-08 22:30:42 +02:00
parent 22bade82a6
commit 9a62f27303
1 changed files with 2 additions and 3 deletions
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5
src/components/editor-page/editor-pane/editor-pane.tsx
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@ -105,15 +105,14 @@ export const EditorPane: React.FC<EditorPaneProps & ScrollProps> = ({ onContentC
if (!editor || !onScroll || !editorScroll) { if (!editor || !onScroll || !editorScroll) {
return return
} }
const scrollEventValue = editorScroll.top as number const line = editor.lineAtHeight(editorScroll.top, 'local')
const line = editor.lineAtHeight(scrollEventValue, 'local')
const startYOfLine = editor.heightAtLine(line, 'local') const startYOfLine = editor.heightAtLine(line, 'local')
const lineInfo = editor.lineInfo(line) const lineInfo = editor.lineInfo(line)
if (lineInfo === null) { if (lineInfo === null) {
return return
} }
const heightOfLine = (lineInfo.handle as { height: number }).height const heightOfLine = (lineInfo.handle as { height: number }).height
const percentageRaw = (Math.max(scrollEventValue - startYOfLine, 0)) / heightOfLine const percentageRaw = (Math.max(editorScroll.top - startYOfLine, 0)) / heightOfLine
const percentage = Math.floor(percentageRaw * 100) const percentage = Math.floor(percentageRaw * 100)
const newScrollState: ScrollState = { firstLineInView: line + 1, scrolledPercentage: percentage } const newScrollState: ScrollState = { firstLineInView: line + 1, scrolledPercentage: percentage }