_onMouseMoveWithHandMode({ e }) {
    const canvas = this.getCanvas();
    const { x, y } = canvas.getPointer(e);
    const deltaX = x - this._startHandPoint.x;
    const deltaY = y - this._startHandPoint.y;

    this._movePointOfZoom({ x: deltaX, y: deltaY });
  }
onMouseMove handler in fabric canvas
@param {{e: MouseEvent}} fEvent - Fabric event
@private