14 lines
593 B
TypeScript
14 lines
593 B
TypeScript
/**
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* Copied from @base-ui/utils
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*
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* Shadow DOM-aware containment check.
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*
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* Native `parent.contains(child)` returns `false` when the child is inside a
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* shadow root that is a descendant of the parent. This function handles that
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* case by traversing up through shadow root hosts.
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*
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* @param parent - The potential ancestor element.
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* @param child - The potential descendant element.
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* @returns Whether `parent` contains `child`, even across shadow root boundaries.
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*/
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export default function contains(parent: Element | null | undefined, child: Element | null | undefined): boolean; |