A Drag & drop hierarchical list made as a vue component

vue-nestable

Drag & drop hierarchical list made as a vue component.

Goals

• A simple vue component to create a draggable list to customizable items
• Reorder items by dragging them above an other item
• Intuitively nest items by dragging right
• Fully customizable, ships with no css
• Everything is configurable: item identifier, max nesting level, threshold for nesting

Installation

1. Install the plugin:

npm install --save vue-nestable

2. Add the plugin into your app:

import Vue from 'vue'
import VueNestable from 'vue-nestable'

Vue.use(VueNestable)

Simple Example

You only need two components: vue-nestable which renders the list and vue-nestable-handle which indicates the are the user can drag the item by.

It can't get any easier than this.

<template>

  <vue-nestable v-model="nestableItems">
    <vue-nestable-handle
      slot-scope="{ item }"
      :item="item">
      {{ item.text }}
    </vue-nestable-handle>
  </vue-nestable>

</template>

<script type="text/babel">
export default {
  data () {
    return {
      nestableItems: [
        {
          id: 0,
          text: 'Andy'
        }, {
          id: 1,
          text: 'Harry',
          children: [{
            id: 2,
            text: 'David'
          }]
        }, {
          id: 3,
          text: 'Lisa'
        }
      ]
    }
  }
}
</script>

Advanced Example

vue-nestable is extremly customizable. For example you don't have to make the entire item draggable. Instead you can just add an icon by which the item can be dragged. We also limited the nesting level to 2 in this example.

<template>

  <vue-nestable
    v-model="nestableItems"
    :max-depth="2">
    <template slot-scope="{ item }">
      <!-- Handler -->
      <vue-nestable-handle :item="item">
        ☰
      </vue-nestable-handle>

      <!-- Content -->
      <span>Item :: {{ item.text }}</span>
    </template>
  </vue-nestable>

</template>

Props

Property	Type	Default	Description
value	Array	[ ]	Array of objects to be used in the list. Important: Each item must have a unique key by which it can be identified. By default the key is assumed to be named id but you can change it by setting the keyProp property.
threshold	Number	30	Amount of pixels by which the mouse must be move horizontally before increasing/decreasing level (nesting) of current element.
maxDepth	Number	10	Maximum available level of nesting. Setting this to 0 will prevent dragging altogether.
group	String or Number	random String	Different group numbers may be passed if you have more than one nestable component on a page and want some extra styles for portal instances.
keyProp	String	'id'	Optional name of property with identifier.
childrenProp	String	'children'	Optional name of property with children.

Slots

Slot Name	Description
placeholder	Lets you define a custom template that is used when no elements are in the list

Events

Event	Parameters	Description
input	value	triggered whenever the list changes

GitHub