Function isElementInScope

packages/react-aria/src/focus/FocusScope.tsx:481–489

(element?: Element | null, scope?: Element[] | null)

}

function isElementInScope(element?: Element | null, scope?: Element[] | null) {
  if (!element) {
    return false;
  }
  if (!scope) {
    return false;
  }
  return scope.some(node => nodeContains(node, element));
}

function isElementInChildScope(element: Element, scope: ScopeRef = null) {
  // If the element is within a top layer element (e.g. toasts), always allow moving focus there.