React Reorder

Drag & drop, touch enabled, reorder / sortable list, React component

About

React Reorder is a React component that allows the user to drag-and-drop items in a list (horizontal / vertical) or a grid.

It fully supports touch devices and auto-scrolls when a component is being dragged (check out the demo, link below).

It also allows the user to set a hold time (duration before drag begins) allowing additional events like clicking / tapping to be applied.

Although this project is very new, it has been thoroughly tested in all modern browsers (see supported browsers).

Demo

Installation

Using npm
```
npm install react-reorder
```
Add --save or -S to update your package.json
Using bower
```
bower install react-reorder
```
Add --save or -S to update your bower.json

Example

If using requirejs: add react-reorder to your require.config

paths:
  // <name> : <path/to/module>
  'react-reorder': 'react-reorder/reorder'
}

If using a module loader (requirejs / browserfiy / commonjs): require react-reorder where it will be used in your project

var Reorder = require('react-reorder');

If using requirejs you'll probably want to wrap your module e.g.

define(function (require) {
  // Require react-reorder here
});

Configuration

Note: If your array is an array of primitives (e.g. strings) then itemKey is not required as the string itself will be used as the key, however item keys must be unique in any case

Using JSX

```javascript
<Reorder
  // The key of each object in your list to use as the element key
  itemKey='name'
  // Lock horizontal to have a vertical list
  lock='horizontal'
  // The milliseconds to hold an item for before dragging begins
  holdTime='500'
  // The list to display
  list={[
    {name: 'Item 1'},
    {name: 'Item 2'},
    {name: 'Item 3'}
  ]}
  // A template to display for each list item
  template={ListItem}
  // Function that is called once a reorder has been performed
  callback={this.callback}
  // Class to be applied to the outer list element
  listClass='my-list'
  // Class to be applied to each list item's wrapper element
  itemClass='list-item'
  // A function to be called if a list item is clicked (before hold time is up)
  itemClicked={this.itemClicked}
  // The item to be selected (adds 'selected' class)
  selected={this.state.selected}
  // The key to compare from the selected item object with each item object
  selectedKey='uuid'
  // Allows reordering to be disabled
  disableReorder={false}/>
```

Using standard Javascript

```javascript
React.createElement(Reorder, {
  // The key of each object in your list to use as the element key
  itemKey: 'name',
  // Lock horizontal to have a vertical list
  lock: 'horizontal',
  // The milliseconds to hold an item for before dragging begins
  holdTime: '500',
  // The list to display
  list: [
    {name: 'Item 1'},
    {name: 'Item 2'},
    {name: 'Item 3'}
  ],
  // A template to display for each list item
  template: ListItem,
  // Function that is called once a reorder has been performed
  callback: this.callback,
  // Class to be applied to the outer list element
  listClass: 'my-list',
  // Class to be applied to each list item's wrapper element
  itemClass: 'list-item',
  // A function to be called if a list item is clicked (before hold time is up)
  itemClicked: this.itemClicked,
  // The item to be selected (adds 'selected' class)
  selected: this.state.selected,
  // The key to compare from the selected item object with each item object
  selectedKey: 'uuid',
  // Allows reordering to be disabled
  disableReorder: false
})
```

Callback functions
The callback function that is called once a reorder has been performed

```javascript
function callback(event, itemThatHasBeenMoved, itemsPreviousIndex, itemsNewIndex, reorderedArray) {
  // ...
}
```

The itemClicked function that is called when an item is clicked before any dragging begins

```javascript
function itemClicked(event, itemThatHasBeenClicked, itemsIndex) {
  // ...
}
```

**Note: `event` will be the synthetic React event for either `mouseup` or `touchend`, and both contain `clientX` & `clientY` values (for ease of use)**

Compatibility / Requirements

Version 2.x tested and working with React 0.14
Versions 1.x tested and working with React 0.12 - 0.13
requirejs / commonjs / browserify (Optional, but recommended*)

* Has only been tested with requirejs & browserify

Supported Browsers

Desktop

Internet Explorer 9+ (may support IE8**)
Google Chrome (tested in version 39.0.2171.95(64-bit))
Mozilla Firefox (tested in version 33.0)
Opera (tested in version 26.0.1656.60)
Safari (tested in version 7.1.2 (9537.85.11.5))

** Have not had a chance to test in IE8, but IE8 is supported by React

Mobile

Chrome (tested in version 40.0.2214.89)
Safari (tested on iOS 8)

Untested Browsers

Internet Explorer 8*** (the lowest version that React supports)

*** If anyone could confirm that this works in IE8, that'd be awesome

msingleton/react-reorder