React-dnd-item NPM

React DnD Item

Welcome PR and issues!

A draggable and droppable item component for React.

Simple React DnD wrapper to use your functions which depend on drop position.

Drag and drop are controlled by React DnD.

Demo

You can try demo!

git clone git@github.com:t-hiroyoshi/react-dnd-item.git
cd react-dnd-item
npm i
npm start

and open http://localhost:8080!

Installation

npm install react-dnd-item --save

Examples

import React, { Component } from 'react';
import { DragDropContext }from 'react-dnd';
import HTML5Backend from 'react-dnd-html5-backend';
import { DnDItem, DropPositions } from 'react-dnd-item';

@DragDropContext(HTML5Backend)
export default class ExampleDnD extends Component {
  constructor(props) {
    super(props);
    this.state = {
      somethings: [
        {id: '1', name: 'somethigs1'},
        {id: '2', name: 'somethigs2'},
        {id: '3', name: 'somethigs3'},
        {id: '4', name: 'somethigs4'},
        {id: '5', name: 'somethigs5'},
        {id: '6', name: 'somethigs6'}
      ]
    };
  }

  dropAction(position, sourceId, targetId) {
    // sourceId: dragged item id, targetId: dropped item id
    // This function is good for call flux actions.
    const {
      TOP_LEFT,
      TOP_CENTER,
      TOP_RIGHT,
      MIDDLE_LEFT,
      MIDDLE_CENTER,
      MIDDLE_RIGHT,
      BOTTOM_LEFT,
      BOTTOM_CENTER,
      BOTTOM_RIGHT
    } = DropPositions;

    switch (position) {
    case TOP_LEFT:
      // return some action
    case TOP_CENTER:
      // return some action
    case TOP_RIGHT:
      // return some action
    case MIDDLE_LEFT:
      // return some action
    case MIDDLE_CENTER:
      // return some action
    case MIDDLE_RIGHT:
      // return some action
    case BOTTOM_LEFT:
      // return some action
    case BOTTOM_CENTER:
      // return some action
    case BOTTOM_RIGHT:
      // return some action
    default:
      return false;
    }
  }

  hoverAction(position, sourceId, targetId) {
    // same as dropActions
  }

  render() {
    const { somethings } = this.state;

    // dropAction is required but hoverAction is optional.
    const dropAction = ::this.dropAction;
    const hoverAction = ::this.hoverAction;

    // ToDo: You can set your component area divider!
    // const areaLine = ["20px 20px", "220px 120px"];

    // You can set your style to dnd item.
    const yourStyle = {
      background: "blue"
    };

    return (
      <div>
        {somethings.map(something =>
          <DnDItem dropAction={dropAction} hoverAction={hoverAction} id={something.id} key={something.id}>
            <div style={yourStyle}>{something.name}</div>
          </DnDItem>
        )}
      </div>
    );
  }
}