Function getAncestorClasses

package/src/utils/react-detection.ts:251–275

* Collect CSS classes from an element and its ancestors

(element: HTMLElement, maxDepth = 10)

 * Collect CSS classes from an element and its ancestors
 */
function getAncestorClasses(element: HTMLElement, maxDepth = 10): Set<string> {
  const classes = new Set<string>();
  let current: HTMLElement | null = element;
  let depth = 0;

  while (current && depth < maxDepth) {
    if (current.className && typeof current.className === "string") {
      current.className.split(/\s+/).forEach((cls) => {
        if (cls.length > 1) {
          // Normalize: remove CSS module hashes, convert to lowercase
          const normalized = cls
            .replace(/[_][a-zA-Z0-9]{5,}.*$/, "")
            .toLowerCase();
          if (normalized.length > 1) {
            classes.add(normalized);
          }
        }
      });
    }
    current = current.parentElement;
    depth++;
  }

  return classes;
}

/**
 * Check if a component name correlates with any DOM class