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fix: #1273 overlap detecting

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This commit is contained in:
Yidadaa 2023-05-05 22:59:21 +08:00
parent 4b9d753254
commit fe8e3f2bcf
1 changed files with 6 additions and 4 deletions
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10
app/components/markdown.tsx
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@ -82,10 +82,12 @@ export function Markdown(
const parentBounds = parent.getBoundingClientRect();
const twoScreenHeight = Math.max(500, parentBounds.height * 2);
const mdBounds = md.getBoundingClientRect();
const isInRange = (x: number) =>
x <= parentBounds.bottom + twoScreenHeight &&
x >= parentBounds.top - twoScreenHeight;
inView.current = isInRange(mdBounds.top) || isInRange(mdBounds.bottom);
const parentTop = parentBounds.top - twoScreenHeight;
const parentBottom = parentBounds.bottom + twoScreenHeight;
const isOverlap =
Math.max(parentTop, mdBounds.top) <=
Math.min(parentBottom, mdBounds.bottom);
inView.current = isOverlap;
}
if (inView.current && md) {