Method scheduleLayoutOrPreload

src/service/resources-impl.js:1537–1580

@override

(
    resource,
    layout,
    opt_parentPriority,
    opt_forceOutsideViewport
  )

  /** @override */
  scheduleLayoutOrPreload(
    resource,
    layout,
    opt_parentPriority,
    opt_forceOutsideViewport
  ) {
    if (resource.element.R1()) {
      return;
    }
    const isBuilt = resource.getState() != ResourceState_Enum.NOT_BUILT;
    const isDisplayed = resource.isDisplayed();
    if (!isBuilt || !isDisplayed) {
      devAssert(
        false,
        'Not ready for layout: %s (%s)',
        resource.debugid,
        resource.getState()
      );
    }
    const forceOutsideViewport = opt_forceOutsideViewport || false;
    if (!this.isLayoutAllowed_(resource, forceOutsideViewport)) {
      return;
    }

    if (layout) {
      this.schedule_(
        resource,
        LAYOUT_TASK_ID_,
        LAYOUT_TASK_OFFSET_,
        opt_parentPriority || 0,
        forceOutsideViewport,
        resource.startLayout.bind(resource)
      );
    } else {
      this.schedule_(
        resource,
        PRELOAD_TASK_ID_,
        PRELOAD_TASK_OFFSET_,
        opt_parentPriority || 0,
        forceOutsideViewport,
        resource.startLayout.bind(resource)
      );
    }
  }

  /**
   * Schedules a task.