Function getLinkInfo

ads/alp/handler.js:101–112

* For an event, see if there is an anchor tag in the target * ancestor chain and if yes, check whether we can figure * out an AMP target URL. * @param {!Event} e * @return {{ * eventualUrl: (string|undefined), * a: !Element * }|undefined} A URL on the AMP Cache.

(e)

 * }|undefined} A URL on the AMP Cache.
 */
function getLinkInfo(e) {
  const a = closest(dev().assertElement(e.target), (element) => {
    return element.tagName == 'A' && element.href;
  });
  if (!a) {
    return;
  }
  return {
    eventualUrl: getEventualUrl(a),
    a,
  };
}

/**
 * Given an anchor tag, figure out whether this goes to an AMP destination