一-在utils文件夹下新建dialogDrag.js文件,创建自定义指令
代码语言:javascript复制import Vue from 'vue'
// v-dialogDrag: 弹窗拖拽
Vue.directive('dialogDrag', {
bind(el, binding, vnode, oldVnode) {
const headerElement = el.querySelector('.el-dialog__header')
const dragDialog = el.querySelector('.el-dialog')
headerElement.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 = dragDialog.currentStyle || window.getComputedStyle(dragDialog, null)
headerElement.onmousedown = (e) => {
// 鼠标按下,计算当前元素距离可视区的距离
const disX = e.clientX - headerElement.offsetLeft
const disY = e.clientY - headerElement.offsetTop
console.log(e.clientX, headerElement.offsetLeft)
// 获取到的值带px 正则匹配替换
let styL, styT
console.log(sty.left)
// 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, '') // 写成/px/g 也行
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
console.log(disX)
// 移动当前元素
dragDialog.style.left = `${l styL}px`
dragDialog.style.top = `${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
}
}
}
})
二、在main.js中引入dialogDrag.js
import '@/utils/dialogDrag
三、在vue页面中使用,给 el-dialog 添加 v-dialogDrag指令
代码语言:javascript复制 </el-dialog>
<el-dialog v-dialogDrag title="提示2" :visible.sync="testDialog.dialogVisible2" width="30%" :close-on-click-modal='false'>
<el-input v-model="testDialog.input1" placeholder="请输入内容"></el-input>
<el-input v-model="testDialog.input2" placeholder="请输入内容"></el-input>
<el-input v-model="testDialog.input3" placeholder="请输入内容"></el-input>
{{testDialog.a}}--{{testDialog.b}}
<span slot="footer" class="dialog-footer">
<el-button type="primary">确 定</el-button>
<el-button @click="handleClose">取消</el-button>
</span>
</el-dialog>