ant design vue 的modal设置为可拖拽
/*定
Vue.directive('drag', (el, binding, vnode, oldVnode) => {
// inserted (el, binding, vnode, oldVnode) {
Vue.nextTick(() => {
const isThemeModal = el.classList.contains('grid-theme')
const dialogHeaderEl = isThemeModal ? el.querySelector('.ant-tabs-bar') : document.querySelector('.ant-modal-header')
const dragDom = isThemeModal ? el.querySelector('.ant-modal') : document.querySelector('.ant-modal')
// dialogHeaderEl.style.cursor = 'move';
dialogHeaderEl.style.cssText += ';cursor:move;'
// dragDom.style.cssText += ';top:0px;'
// 获取原有属性 ie dom元素.currentStyle 火狐谷歌 window.getComputedStyle(dom元素, null);
const sty = (function() {
if (window.document.currentStyle) {
return (dom, attr) => dom.currentStyle[attr]
} else {
return (dom, attr) => getComputedStyle(dom, false)[attr]
}
})()
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
const screenWidth = document.body.clientWidth // body当前宽度
const screenHeight = document.documentElement.clientHeight // 可见区域高度(应为body高度，可某些环境下无法获取)
const dragDomWidth = dragDom.offsetWidth // 对话框宽度
const dragDomheight = dragDom.offsetHeight // 对话框高度
const minDragDomLeft = dragDom.offsetLeft
const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth - (isThemeModal ? 10 : 0)
const minDragDomTop = dragDom.offsetTop
const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight - (isThemeModal ? 10 : 0)
// 获取到的值带px 正则匹配替换
let styL = sty(dragDom, 'left')
let styT = sty(dragDom, 'top')
// 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 (styL.includes('%')) {
// eslint-disable-next-line no-useless-escape
styL = +document.body.clientWidth * (+styL.replace(/\%/g, '') / 100)
// eslint-disable-next-line no-useless-escape
styT = +document.body.clientHeight * (+styT.replace(/\%/g, '') / 100)
} else {
styL = +styL.replace(/\px/g, '')
styT = +styT.replace(/\px/g, '')
};
document.onmousemove = function(e) {
// 通过事件委托，计算移动的距离
let left = e.clientX - disX
let top = e.clientY - disY
// 边界处理
if (-(left) > minDragDomLeft) {
left = -(minDragDomLeft)
} else if (left > maxDragDomLeft) {
left = maxDragDomLeft
}
if (-(top) > minDragDomTop) {
top = -(minDragDomTop)
} else if (top > maxDragDomTop) {
top = maxDragDomTop
}
// 移动当前元素
dragDom.style.cssText += `;left:${left + styL}px;top:${top + styT}px;`
}
document.onmouseup = function(e) {
document.onmousemove = null
document.onmouseup = null
}
}
})
})
<a-modal
v-drag
v-model="visible"
title="拖拽弹框"
:centered="true"
:maskClosable="false"
ok-text="保存"
cancel-text="取消"
@ok="okModal"
:width="750"
>
</a-modal>
