antv可拖拽弹窗：自定义指令v-mousedrags

// 重置的图标
import reset from '@/assets/imgs/reset.png'

export const mouseDrags = {
    mounted(el: any, binding: any) {      
        const dialogHeaderEl: any = el.closest('.ant-modal').querySelector('.ant-modal-header')
        const dragDom: any = el.closest('.ant-modal')

        dialogHeaderEl.style.cursor = 'move'
        const img = document.createElement('img');
        img.src = reset;
        img.title = '复位：使得弹窗回到原本的位置'
        img.style.height = '20px';
        img.style.marginLeft = '8px';
        img.style.cursor = 'pointer'
        
        if (dialogHeaderEl) {
            dialogHeaderEl.appendChild(img, dialogHeaderEl.lastChild);
        }

        // 复位，回到原来的位置
        if(img) {
            img.addEventListener('click', function(e) {
                dragDom.style.left = ``
                dragDom.style.top = ``
            })
        }
       
        // 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: any) => {
            // 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: number, styT: number
            // 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
            }
        }
    },
    // 及他自己的所有子节点都更新后调用
    updated(el: any, binding: any) {
        if(binding.instance.open === false) {
            const dragDom: any = el.closest('.zgpt-mdjf-modal')
            dragDom.style.left = ``
            dragDom.style.top = ``
        }
    },
  }

import { mouseDrags } from './directives/drag'  
  app.directive('mousedrags', mouseDrags);