vue-dragscroll

vue-dragscroll is a micro vue.js directive which enables scrolling via holding the mouse button ("drag and drop" or "click and hold" style).

View on github
CDN : https://unpkg.com/vue-dragscroll
NPM : https://www.npmjs.com/package/vue-dragscroll

Install via CDN

Vue 2

  
    <body>
      <div id="app">
        <div vue-dragscroll>
          ...
        </div>
      </div>

      <script src="https://unpkg.com/vue"></script>
      <script src="https://unpkg.com/vue-dragscroll"></script>
      <script>
    
        new Vue({
          el: '#app',
          data: {
            message: 'Hello World'
          }
        })
      </script>
    </body>

Vue 3

  
    <body>
      <div id="app">
        <div vue-dragscroll>
          ...
        </div>
      </div>

      <script src="https://unpkg.com/vue@next"></script>
      <script src="https://unpkg.com/vue-dragscroll"></script>
      <script>
    
        const App = {
          data() {
            return {
              message: 'Hello World'
            }
          }
        }
    
        const app = Vue.createApp(App);
        app.directive('dragscroll', VueDragscroll);
        app.mount('#app')
      </script>
    </body>

Install via NPM

Vue 2

  npm install vue-dragscroll

Install globally (main.js)

  import Vue from 'vue'
  import VueDragscroll from 'vue-dragscroll'
  Vue.use(VueDragscroll)

(Or) Install for a single component

import { dragscroll } from 'vue-dragscroll'

export default {
  directives: {
    dragscroll
  }
}

Vue 3

  npm install vue-dragscroll

Install globally (main.js)

  import { createApp } from 'vue'
  import { dragscrollNext } from "vue-dragscroll";
  import App from './App.vue'
  
  const app = createApp(App);
  
  app.directive('dragscroll', dragscrollNext);
  app.mount('#app')

Usage

Just add the directive to the parent element


<div v-dragscroll> ... <div>
<!-- For more control -->
<div v-dragscroll="true"> ... <div>

  <div v-dragscroll="false"> ... <div>

Enable drag

(overflow: hidden)

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Directive with :nochilddrag argument

<div v-dragscroll:nochilddrag> ... <div>

This will only enable drag-scrolling for an element itself, but not for its children. Check this example
On below examples, you can scroll on when holding mouse outside of child element
(Outside of the text or red box)

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Horizontally only or Vertically only

<div v-dragscroll.x> ... <div>
<!-- Or -->
<div v-dragscroll.y="true"> ... <div>

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Unde impedit laboriosam deserunt ipsa?

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Select which elements can be dragged


  <div v-dragscroll> 
    <div class="child">...<div><!-- can be dragged -->
    <div class="child" data-no-dragscroll>...<div><!-- can't be dragged -->
  <div>

  <div v-dragscroll:nochilddrag> 
    <div class="child" data-dragscroll>...<div><!-- can be dragged -->
    <div class="child">...<div><!-- can't be dragged -->
  <div>

When using the directive all elements inside will be draggable. You can use data-no-dragscroll to tell which elements can't be dragged.

In the same way, if you are using nochilddrag you can use data-dragscroll to tell which element can be dragged.

firstchilddrag (DEPRECATED, prefer data attributes)


  <div v-dragscroll:firstchilddrag> 
    <div class="subContainer">...<div> 
  <div>

When using nochilddrag, all elements inside the parent element will not be draggable, but in some case you may need to have only one subchild and multile grandchild and only the grandchild should not be dragable.

Pass scroll when max reached


  <div v-dragscroll.pass> 
    <div class="subContainer">...<div> 
  <div>

It would be helpful if scroll were passed to the window object, when max scroll position were reached.

Pass scroll to a container when max reached

  
    <div class="scroller-container" style="overflow: auto; height: 300px">
      <div class="scroller" style="height: 600px">
        <div v-dragscroll.pass="{container: '.scroller-container'}> 
          <div class="subContainer">...<div> 
        <div>
      <div>
    <div>

It would be helpful if scroll were passed to the encapsulating scrolling context, when max scroll position were reached.

Apply dragscroll to a child dom element


  <!-- Vue -->
  <mycomponent v-dragscroll="{ target: '.my-draggable-div' }">
  </mycomponent>
  
  <!-- HTML generated -->
  <div class="mycomponent">
    <div class="my-draggable-div"></div>
  </div>

Use case: when you want to apply the directive to a child dom element you have no control over (because generated by vuejs).

You can use v-dragscroll="{ target: 'element' }" to tell to which child the directive will be applied. This element string must be a valid CSS selector string (used by querySelector). Examples: '#element_id', '.element_class', 'section'.

To control if drag should be enabled/disabled you can add the active parameter to the directive.


  <!-- Vue -->
  <mycomponent v-dragscroll="{ target: '.my-draggable-div', active: true }">
  </mycomponent>

Ignore specific mouse buttons

You can use the following modifiers:

noleft
nomiddle
noright
noback
noforward


  <div v-dragscroll.noleft="true"> 
    <div class="subContainer">...<div> 
  <div>

This will not scroll using left click. (try with right click)

EVENTS

The directive provides 3 events.

dragscrollstart
dragscrollmove
dragscrollend

The dragscrollmove event includes a data object with the following format:

  {
    detail: {
      deltaX: 0, // if using the x modifier, or no axis modifier
      deltaY: 0, // if using the y modifier, or no axis modifier
    },
  }

example:

  <div v-dragscroll  v-on:dragscrollstart="doSomething" v-on:dragscrollmove="doSomething(params, $event.detail.deltaX)" v-on:dragscrollend="doSomething">
    ...
  </div>

Credit: Javascript dragscroll library
Follow Me: @don_jon243
Photo by Toa Heftiba on Unsplash