Method onStartMoving

src/gridstack.ts:2738–2745

(event: Event, ui: DDUIData)

      /** called when item starts moving/resizing */
      const onStartMoving = (event: Event, ui: DDUIData) => {
        // trigger any 'dragstart' / 'resizestart' manually
        this.triggerEvent(event, event.target as GridItemHTMLElement);
        cellWidth = this.cellWidth();
        cellHeight = this.getCellHeight(true); // force pixels for calculations

        this._onStartMoving(el, event, ui, node, cellWidth, cellHeight);
      }

      /** called when item is being dragged/resized */
      const dragOrResize = (event: MouseEvent, ui: DDUIData) => {