Method scroll

adev/src/app/app-scroller.ts:97–125

(injector?: Injector)

  }

  private scroll(injector?: Injector) {
    if (!this._lastScrollEvent || !this.canScroll) {
      return;
    }
    // Prevent double scrolling on the same event
    this.canScroll = false;
    const {anchor, position} = this._lastScrollEvent;

    // Don't scroll during rendering
    const ref = afterNextRender(
      {
        write: () => {
          if (position) {
            this.viewportScroller.scrollToPosition(position);
          } else if (anchor) {
            this.viewportScroller.scrollToAnchor(anchor);
          } else {
            this.viewportScroller.scrollToPosition([0, 0]);
          }
        },
      },
      // Use the component injector when provided so that the manager can
      // deregister the sequence once the component is destroyed.
      {injector: injector ?? this.injector},
    );
    this.cancelScroll = () => {
      ref.destroy();
    };
  }
}