Method setLightboxMode

src/service/fixed-layer.js:1025–1034

@override

(on)

  /** @override */
  setLightboxMode(on) {
    this.vsync_.mutate(() => {
      const root = this.getRoot();
      if (on) {
        root.setAttribute(LIGHTBOX_MODE_ATTR, '');
      } else {
        root.removeAttribute(LIGHTBOX_MODE_ATTR);
      }
    });
  }

  /**
   * Synchronizes any attribute mutations done on the real body to the layer.