import Vue from 'vue'
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Vue.directive('draw', {
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inserted: function (el, binding, vNode) {
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const minWidth = 200
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const minHeight = 200
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el.setAttribute('style', 'position: fixed; z-index: 9999;max-height:' + (document.body.clientHeight - 100) + "px")
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el.onmousemove = function (e) {
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// let moveE = e
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if (
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e.clientX > el.offsetLeft + el.clientWidth - 10 ||
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el.offsetLeft + 10 > e.clientX
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) {
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el.style.cursor = 'w-resize'
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} else if (
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el.scrollTop + e.clientY >
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el.offsetTop + el.clientHeight - 10
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) {
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el.style.cursor = 's-resize'
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} else {
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el.style.cursor = 'default'
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el.onmousedown = null
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}
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el.onmousedown = e => {
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const clientX = e.clientX
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const clientY = e.clientY
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const elW = el.clientWidth
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const elH = el.clientHeight
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const EloffsetLeft = el.offsetLeft
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const EloffsetTop = el.offsetTop
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el.style.userSelect = 'none'
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const ELscrollTop = el.scrollTop
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// 判断点击的位置是不是为头部
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if (
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clientX > EloffsetLeft &&
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clientX < EloffsetLeft + elW &&
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clientY > EloffsetTop &&
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clientY < EloffsetTop + 50
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) {
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// 如果是头部在此就不做任何动作，以上有绑定dialogHeaderEl.onmousedown = moveDown;
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} else {
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document.onmousemove = function (e) {
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// 移动时禁用默认事件
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e.preventDefault()
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// 左侧鼠标拖拽位置
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if (clientX > EloffsetLeft - 5 && clientX < EloffsetLeft + 5) {
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// 往左拖拽
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if (clientX > e.clientX) {
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el.style.width = elW + (clientX - e.clientX) + 'px'
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}
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// 往右拖拽
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if (clientX < e.clientX) {
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if (el.clientWidth < minWidth) {
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console.log()
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} else {
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el.style.width = elW - (e.clientX - clientX) + 'px'
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}
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}
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}
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// 右侧鼠标拖拽位置
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if (
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clientX > EloffsetLeft + elW - 5 &&
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clientX < EloffsetLeft + elW + 5
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) {
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// 往左拖拽
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if (clientX > e.clientX) {
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if (el.clientWidth < minWidth) {
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console.log()
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} else {
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el.style.width = elW - (clientX - e.clientX) + 'px'
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}
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}
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// 往右拖拽
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if (clientX < e.clientX) {
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el.style.width = elW + (e.clientX - clientX) + 'px'
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}
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}
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// 底部鼠标拖拽位置
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if (
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ELscrollTop + clientY > EloffsetTop + elH - 10 &&
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ELscrollTop + clientY < EloffsetTop + elH + 10
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) {
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// 往上拖拽
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if (clientY > e.clientY) {
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if (el.clientHeight < minHeight) {
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console.log()
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} else {
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el.style.height = elH - (clientY - e.clientY) + 'px'
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}
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}
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// 往下拖拽
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if (clientY < e.clientY) {
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el.style.height = elH + (e.clientY - clientY) + 'px'
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}
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}
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}
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// 拉伸结束
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document.onmouseup = function (e) {
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document.onmousemove = null
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document.onmouseup = null
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}
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}
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}
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}
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},
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bind: function (el, bindding, vNode) {
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el.setAttribute('draggable', true)
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let left, top, width, height
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el._dragstart = function (event) {
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event.stopPropagation()
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left = event.clientX - el.offsetLeft
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top = event.clientY - el.offsetTop
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width = el.offsetWidth
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height = el.offsetHeight
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}
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el._checkPosition = function () { // 防止被拖出边界
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let width = el.offsetWidth
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let height = el.offsetHeight
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let left = Math.min(el.offsetLeft, document.body.clientWidth - width)
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left = Math.max(0, left)
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let top = Math.min(el.offsetTop, document.body.clientHeight - height)
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top = Math.max(0, top)
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el.style.left = left + 'px'
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el.style.top = top + 'px'
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el.style.width = width + 'px'
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el.style.height = height + 'px'
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}
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el._dragEnd = function (event) {
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event.stopPropagation()
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left = event.clientX - left
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top = event.clientY - top
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el.style.left = left + 'px'
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el.style.top = top + 'px'
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el.style.width = width + 'px'
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el.style.height = height + 'px'
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el._checkPosition()
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}
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el._documentAllowDraop = function (event) {
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event.preventDefault()
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}
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document.body.addEventListener('dragover', el._documentAllowDraop)
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el.addEventListener('dragstart', el._dragstart)
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el.addEventListener('dragend', el._dragEnd)
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window.addEventListener('resize', el._checkPosition)
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},
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unbind: function (el, bindding, vNode) {
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document.body.removeEventListener('dragover', el._documentAllowDraop)
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el.removeEventListener('dragstart', el._dragstart)
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el.removeEventListener('dragend', el._dragEnd)
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window.removeEventListener('resize', el._checkPosition)
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delete el._documentAllowDraop
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delete el._dragstart
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delete el._dragEnd
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delete el._checkPosition
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}
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})
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// // v-dialogDrag: 弹窗拖拽
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// Vue.directive('dialogDrag', {
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// bind(el, binding, vnode, oldVnode) {
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// const dialogHeaderEl = el.querySelector('.el-dialog__header')
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// const dragDom = el.querySelector('.el-dialog')
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// dialogHeaderEl.style.cursor = 'move'
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// // 获取原有属性 ie dom元素.currentStyle 火狐谷歌 window.getComputedStyle(dom元素, null);
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// const sty = dragDom.currentStyle || window.getComputedStyle(dragDom, null)
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// dialogHeaderEl.onmousedown = (e) => {
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// // 鼠标按下，计算当前元素距离可视区的距离
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// const disX = e.clientX - dialogHeaderEl.offsetLeft
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// const disY = e.clientY - dialogHeaderEl.offsetTop
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// // 获取到的值带px 正则匹配替换
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// let styL, styT
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// // 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
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// if (sty.left.includes('%')) {
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// styL = +document.body.clientWidth * (+sty.left.replace(/\%/g, '') / 100)
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// styT = +document.body.clientHeight * (+sty.top.replace(/\%/g, '') / 100)
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// } else {
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// styL = +sty.left.replace(/\px/g, '')
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// styT = +sty.top.replace(/\px/g, '')
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// }
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// document.onmousemove = function (e) {
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// // 通过事件委托，计算移动的距离
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// const l = e.clientX - disX
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// const t = e.clientY - disY
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// // 移动当前元素
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// dragDom.style.left = `${l + styL}px`
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// dragDom.style.top = `${t + styT}px`
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// // 将此时的位置传出去
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// // binding.value({x:e.pageX,y:e.pageY})
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// }
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// document.onmouseup = function (e) {
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// document.onmousemove = null
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// document.onmouseup = null
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// }
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// }
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// }
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// })
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// // v-dialogDragWidth: 弹窗宽度拖大 拖小
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// Vue.directive('dialogDragWidth', {
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// bind(el, binding, vnode, oldVnode) {
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// const dragDom = binding.value.$el.querySelector('.el-dialog')
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// el.onmousedown = (e) => {
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// // 鼠标按下，计算当前元素距离可视区的距离
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// const disX = e.clientX - el.offsetLeft
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// document.onmousemove = function (e) {
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// e.preventDefault() // 移动时禁用默认事件
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// // 通过事件委托，计算移动的距离
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// const l = e.clientX - disX
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// dragDom.style.width = `${l}px`
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// }
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// document.onmouseup = function (e) {
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// document.onmousemove = null
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// document.onmouseup = null
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// }
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// }
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// }
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// })
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// /*
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// * 使用方法
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// * 将以下代码复制到一个drag.js文件中，然后在入口文件main.js中导入：import ‘./util/drog.js’；
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// * 给elementUI的dialog上加上 v-dialogDrag 指令就可以实现弹窗的全屏和拉伸了。
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// * 给dialog设置 :close-on-click-modal="false" , 禁止点击遮罩层关闭弹出层
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// * 如果是form表单，不要将提交等按钮放置el-form-item，以免在上下拉伸时被隐藏
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// */
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// // v-dialogDrag: 弹窗拖拽+水平方向伸缩
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// export default {
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// bind(el, binding, vnode) {
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// const minWidth = 1000
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// const minHeight = 620
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// const dialogHeaderEl = el.querySelector('.el-dialog__header')
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// const dragDom = el.querySelector('.el-dialog')
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// dialogHeaderEl.style.cssText += ';cursor:move;'
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// dragDom.style.cssText += ';top:0px;'
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// // 获取原有属性 ie dom元素.currentStyle 火狐谷歌 window.getComputedStyle(dom元素, null);
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// const getStyle = (function () {
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// if (window.document.currentStyle) {
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// return (dom, attr) => dom.currentStyle[attr]
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// } else {
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// return (dom, attr) => getComputedStyle(dom, false)[attr]
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// }
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// })()
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// const moveDown = (e) => {
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// // 鼠标按下，计算当前元素距离可视区的距离
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// const disX = e.clientX - dialogHeaderEl.offsetLeft
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// const disY = e.clientY - dialogHeaderEl.offsetTop
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// const dragDomWidth = dragDom.offsetWidth
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// const dragDomHeight = dragDom.offsetHeight
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// const screenWidth = document.body.clientWidth
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// const screenHeight = document.body.clientHeight
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// const minDragDomLeft = dragDom.offsetLeft
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// const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth
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// const minDragDomTop = dragDom.offsetTop
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// const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomHeight
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// // 获取到的值带px 正则匹配替换
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// let styL = getStyle(dragDom, 'left')
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// let styT = getStyle(dragDom, 'top')
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// if (styL.includes('%')) {
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// styL = +document.body.clientWidth * (+styL.replace(/\%/g, '') / 100)
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// styT = +document.body.clientHeight * (+styT.replace(/\%/g, '') / 100)
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// } else {
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// styL = +styL.replace(/\px/g, '')
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// styT = +styT.replace(/\px/g, '')
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// }
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// document.onmousemove = function (e) {
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// // 通过事件委托，计算移动的距离
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// let left = e.clientX - disX
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// let top = e.clientY - disY
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// // 边界处理
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// if (-(left) > minDragDomLeft) {
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// left = -minDragDomLeft
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// } else if (left > maxDragDomLeft) {
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// left = maxDragDomLeft
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// }
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// if (-(top) > minDragDomTop) {
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// top = -minDragDomTop
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// } else if (top > maxDragDomTop) {
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// top = maxDragDomTop
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// }
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// // 移动当前元素
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// dragDom.style.cssText += `;left:${left + styL}px;top:${top + styT}px;`
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// // emit onDrag event
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// vnode.child.$emit('dragDialog')
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// }
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// document.onmouseup = function (e) {
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// document.onmousemove = null
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// document.onmouseup = null
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// }
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// }
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// // 当前宽高
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// let nowWidth = 0
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// dialogHeaderEl.onmousedown = moveDown
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// dragDom.onmousemove = function (e) {
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// // let moveE = e
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// if (
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// e.clientX > dragDom.offsetLeft + dragDom.clientWidth - 10 ||
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// dragDom.offsetLeft + 10 > e.clientX
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// ) {
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// dragDom.style.cursor = 'w-resize'
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// } else if (
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// el.scrollTop + e.clientY >
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// dragDom.offsetTop + dragDom.clientHeight - 10
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// ) {
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// dragDom.style.cursor = 's-resize'
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// } else {
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// dragDom.style.cursor = 'default'
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// dragDom.onmousedown = null
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// }
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// dragDom.onmousedown = e => {
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// const clientX = e.clientX
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// const clientY = e.clientY
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// const elW = dragDom.clientWidth
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// const elH = dragDom.clientHeight
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// const EloffsetLeft = dragDom.offsetLeft
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// const EloffsetTop = dragDom.offsetTop
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// dragDom.style.userSelect = 'none'
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// const ELscrollTop = el.scrollTop
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// // 判断点击的位置是不是为头部
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// if (
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// clientX > EloffsetLeft &&
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// clientX < EloffsetLeft + elW &&
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// clientY > EloffsetTop &&
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// clientY < EloffsetTop + 100
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// ) {
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// // 如果是头部在此就不做任何动作，以上有绑定dialogHeaderEl.onmousedown = moveDown;
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// } else {
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// document.onmousemove = function (e) {
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// // 移动时禁用默认事件
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// e.preventDefault()
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// // 左侧鼠标拖拽位置
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// if (clientX > EloffsetLeft && clientX < EloffsetLeft + 10) {
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// // 往左拖拽
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// if (clientX > e.clientX) {
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// dragDom.style.width = elW + (clientX - e.clientX) * 2 + 'px'
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// }
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// // 往右拖拽
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// if (clientX < e.clientX) {
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// if (dragDom.clientWidth < minWidth) {
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// console.log()
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// } else {
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// dragDom.style.width = elW - (e.clientX - clientX) * 2 + 'px'
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// }
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// }
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// }
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// // 右侧鼠标拖拽位置
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// if (
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// clientX > EloffsetLeft + elW - 10 &&
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// clientX < EloffsetLeft + elW
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// ) {
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// // 往左拖拽
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// if (clientX > e.clientX) {
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// if (dragDom.clientWidth < minWidth) {
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// console.log()
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// } else {
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// dragDom.style.width = elW - (clientX - e.clientX) * 2 + 'px'
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// }
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// }
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// // 往右拖拽
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// if (clientX < e.clientX) {
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// dragDom.style.width = elW + (e.clientX - clientX) * 2 + 'px'
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// }
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// }
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// // 底部鼠标拖拽位置
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// if (
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// ELscrollTop + clientY > EloffsetTop + elH - 20 &&
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// ELscrollTop + clientY < EloffsetTop + elH
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// ) {
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// // 往上拖拽
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// if (clientY > e.clientY) {
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// if (dragDom.clientHeight < minHeight) {
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// console.log()
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// } else {
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// dragDom.style.height = elH - (clientY - e.clientY) * 2 + 'px'
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// }
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// }
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// // 往下拖拽
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// if (clientY < e.clientY) {
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// dragDom.style.height = elH + (e.clientY - clientY) * 2 + 'px'
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// }
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// }
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// }
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// // 拉伸结束
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// document.onmouseup = function (e) {
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// document.onmousemove = null
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// document.onmouseup = null
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// }
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// }
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// }
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// }
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// }
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// }
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