Function measureDisplay

src/utils/display-observer.js:65–74

(target)

 * @return {!Promise<boolean>}
 */
export function measureDisplay(target) {
  const observer = getObserver(target);
  return new Promise((resolve) => {
    const onDisplay = (display) => {
      resolve(display);
      observer.unobserve(target, onDisplay);
    };
    observer.observe(target, onDisplay);
  });
}

/**
 * Registers the container to provide additional display intersection info