code: function () {
              // this.updatePosition();
              if (this._popup) {
                  this._popup.refreshProcessingIndicators();
              }
              this.setProperty("center", false);
              this._calculatePosition();
              this.updatePosition();
              this.evalCallback(this._cfg.ondragend);
          }
docs: Internal handler for the "dragend" event raised by the Drag instance. Refresh the data model with the new
  position
  @protected