React Sortable

A React higher-order component for creating sortable interfaces utilizing the HTML5 drag & drop API.

Mainly tested in latest stable Webkit, Firefox and IE releases.

Check out http://webcloud.se/react-sortable or the index.html file of this repository for an example implementation.

Installation

To install a stable release use:

npm i react-sortable --save

If you want to install the most current master branch, open your package.json and change the line for react-sortable like this:

"react-sortable": "https://github.com/danielstocks/react-sortable/tarball/master"

Example

Here's a sample implementation using the react-sortable higher order component:

import React from 'react';
import { sortable } from 'react-sortable';

var ListItem = React.createClass({
  displayName: 'SortableListItem',
  render: function() {
    return (
      <div {...this.props} className="list-item">{this.props.children}</div>
    )
  }
})

var SortableListItem = sortable(ListItem);

var SortableList = React.createClass({

  getInitialState: function() {
    return {
      draggingIndex: null,
      data: this.props.data
    };
  },

  updateState: function(obj) {
    this.setState(obj);
  },

  render: function() {
    var childProps = { className: 'myClass1' };
    var listItems = this.state.data.items.map(function(item, i) {
      return (
        <SortableListItem
          key={i}
          updateState={this.updateState}
          items={this.state.data.items}
          draggingIndex={this.state.draggingIndex}
          sortId={i}
          outline="list"
          childProps={childProps}
          >{item}</SortableListItem>
      );
    }, this);

    return (
          <div className="list">{listItems}</div>
    )
  }
});

Here's some example data and a render call to the above component:

import ReactDOM from 'react-dom';

var data = {
  items: [
    "Gold",
    "Crimson",
    "Hotpink",
    "Blueviolet",
    "Cornflowerblue"
  ]
};

ReactDOM.render(
    <SortableList data={data} />,
    document.body
);

You can see this simple working demo in the ./example folder.

How it works

The Sortable higher order component will automatically attach the necessary drag event handlers.

It expects the following properties to be defined on your Item components:

• key (number index, common recommendation)
• updateState (function called when an item is moved)
• draggingIndex (number index of item being dragged)
• items (array of data being sorted)
• outline (string "list" or "grid")
• sortId (number index of item)
• childProps (props to transfer to child)

Differences from react-dnd sortable

• fewer lines of code = easier to implement and modify
• can handle both horizontal and vertical dragging
• code is documented and covered with unit tests

If you want to have multiple different types of Drag & Drop interactions (not only sortable), you should definitely check out react-dnd

Touch support

Internally the component is usign DragEvent interface. Unfortunately at the moment there is no support of this interface in mobile browsers. I started to work on CSS/JS fallback for mobile broser on 'touch' branch.