selecting = false;
    if (!selectionRectangle.visible()) {
      return;
    }
    e.evt.preventDefault();
    selectionRectangle.visible(false);
    const shapes = stage.find('.rects');
    const box = selectionRectangle.getClientRect();
    const selected = shapes.filter(shape => Konva.Util.haveIntersection(box, shape.getClientRect()));
    transformer.nodes(selected);

 transformer = new Konva.Transformer({ shouldOverdrawWholeArea: true });
    stage.add(layer);
    layer.add(transformer);
    stage.container().addEventListener('dragover', e => e.preventDefault());
    stage.container().addEventListener('drop', onDrop);
    const { selectionRectangle, startSelection, moveSelection, endSelection } = useSelection({ stage, transformer });
    layer.add(selectionRectangle);
    layer.draw();
    stage.on('mousedown touchstart', startSelection);
    stage.on('mousemove touchmove', moveSelection);
    stage.on('mouseup touchend', endSelection);
    // window.addEventListener('keydown', handleKeyDown);
    stage.on('click tap', e => handleOnClickStage(e, selectionRectangle));

 const rect = new Konva.Rect({
        x: dropX,
        y: dropY,
        width: rectWidth,
        height: rectHeight,
        fill: 'red',
        name: 'rects',
        draggable: true
      });
      layer.add(rect);
      layer.draw();

    if (selectionRectangle.visible()) {
      return;
    }
    if (e.target === stage) {
      transformer.nodes([]);
      return;
    }
    const metaPressed = e.evt.shiftKey || e.evt.ctrlKey || e.evt.metaKey;
    const isSelected = transformer.nodes().includes(e.target);
    if (!metaPressed && !isSelected) {
      transformer.nodes([e.target]);
    } else if (metaPressed && isSelected) {
      const nodes = transformer.nodes().slice();
      nodes.splice(nodes.indexOf(e.target), 1);
      transformer.nodes(nodes);
    } else if (metaPressed && !isSelected) {
      const nodes = transformer.nodes().concat([e.target]);
      transformer.nodes(nodes);
    }