v-dragged

Vue 2.x directive plugin for drag event detection.

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Install

npm install --save v-dragged

import Vue from 'vue'
import VDragged from 'v-dragged'

Vue.use(VDragged)

Example

<div v-dragged="onDragged"></div>

{
  // ...other options omitted

  methods: {
    onDragged({ el, deltaX, deltaY, offsetX, offsetY, clientX, clientY, first, last }) {
      if (first) {
        this.dragged = true
        return
      }
      if (last) {
        this.dragged = false
        return
      }
      var l = +window.getComputedStyle(el)['left'].slice(0, -2) || 0
      var t = +window.getComputedStyle(el)['top'].slice(0, -2) || 0
      el.style.left = l + deltaX + 'px'
      el.style.top = t + deltaY + 'px'
    }
  }
}

Event Details

The argument passed to the callback function is an object containing the following properties:

el

  • The target element on which the diretive binds.
  • type: HTMLElement

first

  • A boolean to indicate whether it is the first move of the drag. (drag starts here).
  • type: Boolean

last

  • A boolean to indicate whether it is the last move of the drag. (drag ends here).
  • type: Boolean

deltaX

  • The change of the pointer (mouse/touch)'s x coordination from the last position. undefined when first or last is true.
  • type: Number

deltaY

  • The change of the pointer (mouse/touch)'s y coordination from the last position. undefined when first or last is true.
  • type: Number

offsetX

  • The change of the pointer (mouse/touch)'s x coordination from the starting position. undefined when first or last is true.
  • type: Number

offsetY

  • The change of the pointer (mouse/touch)'s y coordination from the starting position. undefined when first or last is true.
  • type: Number

clientX

  • Current x coordination of the pointer (mouse/touch).
  • type: Number

clientY

  • Current y coordination of the pointer (mouse/touch).
  • type: Number

Modifier

prevent

  • prevent default on pointer events (touchstart, touchmove, touchend, mousedown, mousemove, mouseup).
<div v-dragged.prevent="onDragged"></div>

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