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@@ -1,76 +1,93 @@
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import Vue from 'vue'
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-/*定义a-modal弹框可拖拽*/
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-const dragModal = Vue.directive('drag-modal', (el, bindings, vnode) => {
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- Vue.nextTick(() => {
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- let { visible, destroyOnClose } = vnode.componentInstance
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- // 防止未定义 destroyOnClose 关闭弹窗时dom未被销毁,指令被重复调用
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- if (!visible) return
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- let modal = el.getElementsByClassName('ant-modal')[0]
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- let header = el.getElementsByClassName('ant-modal-header')[0]
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- let left = 0
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- let top = 0
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- // 未定义 destroyOnClose 时,dom未被销毁,关闭弹窗再次打开,弹窗会停留在上一次拖动的位置
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- if (!destroyOnClose) {
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- left = modal.left || 0
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- top = modal.top || 0
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- }
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- header.onmousedown = e => {
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- let startX = e.clientX;
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- let startY = e.clientY;
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- header.left = header.offsetLeft;
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- header.top = header.offsetTop;
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- header.style.cursor = 'move'
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- el.onmousemove = event => {
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- let endX = event.clientX;
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- let endY = event.clientY;
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- // 左右拖拽的距离
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- modal.left = header.left + (endX - startX) + left;
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- //上下拖拽的距离
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- modal.top = header.top + (endY - startY) + top;
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- //屏幕边界X
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- const screenX = (document.body.offsetWidth + 17 - modal.offsetWidth) / 2
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- //屏幕边界Y
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- const screenY = (document.body.offsetHeight - modal.offsetHeight) / 2
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-
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- //判断拖拽是否超出屏幕 X
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- if (Math.abs(modal.left) > screenX) {
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- if (modal.left < 0) {
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- modal.style.left = -screenX + 'px'
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- }
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- if (modal.left > 0) {
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- modal.style.left = screenX + 'px'
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- }
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+// 弹窗拖拽属性
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+/**
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+ * @directive 自定义属性
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+ * @todo 弹窗拖拽属性
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+ * @desc 使用在弹窗内部任意加载的html添加v-drag
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+ * @param .ant-modal-header 弹窗头部用来拖动的属性
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+ * @param .ant-modal 拖动的属性
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+*/
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+const dragModal = Vue.directive('drag', (el, binding, vnode, oldVnode) => {
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+ // inserted (el, binding, vnode, oldVnode) {
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+ Vue.nextTick(() => {
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+ const isThemeModal = el.classList.contains('grid-theme')
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+ const dialogHeaderEl = isThemeModal ? el.querySelector('.ant-tabs-bar') : document.querySelector('.ant-modal-header')
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+ const dragDom = isThemeModal ? el.querySelector('.ant-modal') : document.querySelector('.ant-modal')
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+ // dialogHeaderEl.style.cursor = 'move';
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+ dialogHeaderEl.style.cssText += ';cursor:move;'
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+ // dragDom.style.cssText += ';top:0px;'
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+
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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 = (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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+
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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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+
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+ const screenWidth = document.body.clientWidth // body当前宽度
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+ 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)
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+
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+ const dragDomWidth = dragDom.offsetWidth // 对话框宽度
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+ const dragDomheight = dragDom.offsetHeight // 对话框高度
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+
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+ const minDragDomLeft = dragDom.offsetLeft
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+ const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth - (isThemeModal ? 10 : 0)
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- } else {
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- modal.style.left = modal.left + 'px'
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- }
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- //判断拖拽是否超出屏幕 Y
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- if (Math.abs(modal.top) > screenY) {
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- if (modal.top < 0) {
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- modal.style.top = -screenY + 'px'
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- }
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- if (modal.top > 0) {
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- modal.style.top = screenY + 'px'
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- }
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+ const minDragDomTop = dragDom.offsetTop
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+ const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight - (isThemeModal ? 10 : 0)
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- } else {
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- modal.style.top = modal.top + 'px'
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- }
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+ // 获取到的值带px 正则匹配替换
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+ let styL = sty(dragDom, 'left')
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+ let styT = sty(dragDom, 'top')
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- }
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- el.onmouseup = event => {
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- left = modal.left
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- top = modal.top
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- el.onmousemove = null;
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- el.onmouseup = null;
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- header.style.cursor = 'auto'
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- header.releaseCapture && header.releaseCapture();
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- }
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- header.setCapture && header.setCapture();
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- return false
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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 (styL.includes('%')) {
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+ // eslint-disable-next-line no-useless-escape
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+ styL = +document.body.clientWidth * (+styL.replace(/\%/g, '') / 100)
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+ // eslint-disable-next-line no-useless-escape
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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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+
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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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+
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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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- })
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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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+ }
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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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+ dragDom.releaseCapture && dragDom.releaseCapture();
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+ }
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+ dragDom.setCapture && dragDom.setCapture();
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+ }
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+ })
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})
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export default dragModal
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