1、在 utils 中新建 directives.js 文件
import Vue from 'vue' // v-dialogDrag: 弹窗拖拽 Vue.directive('dialogDrag', { bind(el, binding, vnode, oldVnode) { const dialogHeaderEl = el.querySelector('.el-dialog__header') const dragDom = el.querySelector('.el-dialog') dialogHeaderEl.style.cursor = 'move' // 获取原有属性 ie dom元素.currentStyle 火狐谷歌 window.getComputedStyle(dom元素, null); const sty = dragDom.currentStyle || window.getComputedStyle(dragDom, null) dialogHeaderEl.onmousedown = (e) => { // 鼠标按下,计算当前元素距离可视区的距离 const disX = e.clientX - dialogHeaderEl.offsetLeft const disY = e.clientY - dialogHeaderEl.offsetTop // 获取到的值带px 正则匹配替换 let styL, styT // 注意在ie中 第一次获取到的值为组件自带50% 移动之后赋值为px if (sty.left.includes('%')) { styL = +document.body.clientWidth * (+sty.left.replace(/\%/g, '') / 100) styT = +document.body.clientHeight * (+sty.top.replace(/\%/g, '') / 100) } else { styL = +sty.left.replace(/px/g, '') styT = +sty.top.replace(/px/g, '') } document.onmousemove = function(e) { // 通过事件委托,计算移动的距离 const l = e.clientX - disX const t = e.clientY - disY // 移动当前元素 dragDom.style.left = `${l + styL}px` dragDom.style.top = `${t + styT}px` // 将此时的位置传出去 // binding.value({x:e.pageX,y:e.pageY}) } document.onmouseup = function(e) { document.onmousemove = null document.onmouseup = null } } } }) // v-dialogDragWidth: 弹窗宽度拖大 拖小 Vue.directive('dialogDragWidth', { bind(el, binding, vnode, oldVnode) { const dragDom = binding.value.$el.querySelector('.el-dialog') el.onmousedown = (e) => { // 鼠标按下,计算当前元素距离可视区的距离 const disX = e.clientX - el.offsetLeft document.onmousemove = function(e) { e.preventDefault() // 移动时禁用默认事件 // 通过事件委托,计算移动的距离 const l = e.clientX - disX dragDom.style.width = `${l}px` } document.onmouseup = function(e) { document.onmousemove = null document.onmouseup = null } } } })
2、main.js中导入:import ‘./utils/directives.js’
3、使用 el-dialog
的地方加入 v-dialogDrag
<el-dialog :visible.sync="dialogVisible" v-dialogDrag> // ... </el-dialog>
转载
https://blog.csdn.net/sinat_21902709/article/details/86545444