Method open

packages/core/test/acceptance/animation_spec.ts:2582–2595

()

        }

        open() {
          this.opened = true;
          const viewRef = this.vcr.createEmbeddedView(this.menuTpl);
          // Simulate CDK DomPortalOutlet: after creating the view, move
          // the root nodes to a new "overlay pane" div, just like CDK
          // Overlay does with outletElement.appendChild(rootNode).
          const pane = document.createElement('div');
          pane.className = 'overlay-pane';
          document.body.appendChild(pane);
          for (const node of viewRef.rootNodes) {
            pane.appendChild(node);
          }
          this.currentPane = pane;
        }

        close() {
          this.opened = false;