Function whenContentIniLoadMeasure

src/ini-load.js:50–77

(
  elementOrAmpDoc,
  hostWin,
  rect,
  opt_prerenderableOnly
)

 * @return {!Promise}
 */
export function whenContentIniLoadMeasure(
  elementOrAmpDoc,
  hostWin,
  rect,
  opt_prerenderableOnly
) {
  const ampdoc = Services.ampdoc(elementOrAmpDoc);
  return getMeasuredResources(ampdoc, hostWin, (r) => {
    // TODO(jridgewell): Remove isFixed check here once the position
    // is calculted correctly in a separate layer for embeds.
    if (
      !r.isDisplayed() ||
      (!r.overlaps(rect) && !r.isFixed()) ||
      (opt_prerenderableOnly && !r.prerenderAllowed())
    ) {
      return false;
    }
    return true;
  }).then((resources) => {
    const promises = [];
    resources.forEach((r) => {
      if (!EXCLUDE_INI_LOAD.includes(r.element.tagName)) {
        promises.push(r.loadedOnce());
      }
    });
    return Promise.all(promises);
  });
}

/**
 * A new way using direct measurement.