forked from cybrespace/pinafore
18 lines
785 B
JavaScript
18 lines
785 B
JavaScript
// Get the bounding client rect from an IntersectionObserver entry.
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// This is to work around a bug in Chrome: https://crbug.com/737228
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let hasBoundingRectBug
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export function getRectFromEntry (entry) {
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if (typeof hasBoundingRectBug !== 'boolean') {
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const boundingRect = entry.target.getBoundingClientRect()
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const observerRect = entry.boundingClientRect
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hasBoundingRectBug = boundingRect.height !== observerRect.height ||
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boundingRect.top !== observerRect.top ||
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boundingRect.width !== observerRect.width ||
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boundingRect.bottom !== observerRect.bottom ||
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boundingRect.left !== observerRect.left ||
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boundingRect.right !== observerRect.right
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}
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return hasBoundingRectBug ? entry.target.getBoundingClientRect() : entry.boundingClientRect
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}
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