Method moveBox

examples/02 Drag Around/Naive/Container.js:47–55

(id, left, top)

  }

  moveBox(id, left, top) {
    this.setState(update(this.state, {
      boxes: {
        [id]: {
          $merge: { left, top },
        },
      },
    }));
  }

  render() {
    const { hideSourceOnDrag, connectDropTarget } = this.props;