// Tutorial //

Draggable Components in Vue.js with Vue.Draggable

Published on April 23, 2017
Default avatar

By Joshua Bemenderfer

Draggable Components in Vue.js with Vue.Draggable

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Sortable lists are on of the more frustrating parts of web development. The web wasn’t originally created with drag-and-drop in mind, and even with the addition of native drag-and-drop support in HTML5, there’s still quite a bit to hook up. With Vue.Draggable however, this becomes a cinch. It makes most of the decisions for you and leaves a simple, clean API for your benefit.

Installation

Install Vue.Draggable from NPM or Yarn:

# Yarn
$ yarn add vuedraggable

# NPM
$ npm install vuedraggable --save

Now, any component can import the draggable component from vuedraggable.

Usage

To make a list sortable, just wrap any element in a draggable component (usually with a v-for, but you can do individual elements as well.)

draggable can also take a v-model binding to update an array that contains the relevant data.

ExampleComponent.vue
<template>
  <div>
    <h2>Draggable Wrapper</h2>
    <draggable v-model="exampleList">
      <div v-for="text in exampleList" :key="text">{{text}}</div>
    </draggable>
  </div>
</template>

<script>
import draggable from 'vuedraggable';

export default {
  components: {
    draggable
  },

  data() {
    return {
      exampleList: [
        'Item 1',
        'Item 2',
        'Item 3',
        'Item 4',
        'Item 5'
      ]
    }
  }
}
</script>

Voilà! The list is sortable! You can drag and drop list items around however you’d like and the changes will be reflected in the array.

Props & Events

Props:

  • value (v-model capable): Array - The input array for the component. It’s immutable, so it’s recreated for every change.
  • list: Array - An alternative to value, but updates the array without recreating it. (via. Array.splice())
  • options: Object - An object containing any of the valid options for Sortable.
  • element: String - The wrapper element used by the draggable component. Defaults to div.
  • clone: Function(VNode) -> VNode - A method used to clone a VNode when the clone option is present. Fairly advanced. Mostly used for deep-cloning.
  • move: Function(evt) -> Boolean - Called when an element is dragged. Returning false will cancel the operation.

Events: start, add, remove, update, end, choose, sort, filter, clone. Reference

Usage with Vuex

When using Vue.Draggable with Vuex, use a computed property for your array that retrieves the array from the store via a getter, and commits a mutation when set:

computed: {
  exampleList: {
    get() {
      return this.$store.state.exampleList
    },

    set(val) {
      this.$store.commit('setExampleList', val)
    }
  }
}

Additional

  • Vue.Draggable works fine with transitions, just make sure that the draggable element is directly wrapping the transition or transition-group element. There can be nothing else in-between.
  • If your list has 0 elements in it by default, make sure the element draggable creates is styled with enough height to be a valid drop target.

That’s all there is to it!

Now, I added home-spun drag-and-drop functionality to a couple personal projects. I’m going to go replace those shoddy implementations with Vue.Draggable now. Adiós!

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About the authors
Default avatar
Joshua Bemenderfer

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