Method isInViewport

src/service/resource.js:970–975

* Whether the resource is currently visible in the viewport. * @return {boolean}

()

   * @return {boolean}
   */
  isInViewport() {
    if (this.isInViewport_) {
      this.resolveDeferredsWhenWithinViewports_();
    }
    return this.isInViewport_;
  }

  /**
   * Updates the inViewport state of the element.