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