@angular/cdk/fesm2022/_shadow-dom-chunk.mjs

Angular Material Component Development Kit

let shadowDomIsSupported;
function _supportsShadowDom() {
  if (shadowDomIsSupported == null) {
    const head = typeof document !== 'undefined' ? document.head : null;
    shadowDomIsSupported = !!(head && (head.createShadowRoot || head.attachShadow));
  }
  return shadowDomIsSupported;
}
function _getShadowRoot(element) {
  if (_supportsShadowDom()) {
    const rootNode = element.getRootNode ? element.getRootNode() : null;
    if (typeof ShadowRoot !== 'undefined' && ShadowRoot && rootNode instanceof ShadowRoot) {
      return rootNode;
    }
  }
  return null;
}
function _getFocusedElementPierceShadowDom() {
  let activeElement = typeof document !== 'undefined' && document ? document.activeElement : null;
  while (activeElement && activeElement.shadowRoot) {
    const newActiveElement = activeElement.shadowRoot.activeElement;
    if (newActiveElement === activeElement) {
      break;
    } else {
      activeElement = newActiveElement;
    }
  }
  return activeElement;
}
function _getEventTarget(event) {
  return event.composedPath ? event.composedPath()[0] : event.target;
}

export { _getEventTarget, _getFocusedElementPierceShadowDom, _getShadowRoot, _supportsShadowDom };
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