/**
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* v-dialogDragWidth 可拖动弹窗高度（右下角）
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* Copyright (c) 2019 ruoyi
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*/
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export default {
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bind(el) {
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const dragDom = el.querySelector('.el-dialog')
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const lineEl = document.createElement('div')
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lineEl.style = 'width: 6px; background: inherit; height: 10px; position: absolute; right: 0; bottom: 0; margin: auto; z-index: 1; cursor: nwse-resize;'
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lineEl.addEventListener('mousedown',
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function(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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const disY = e.clientY - el.offsetTop
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// 当前宽度 高度
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const curWidth = dragDom.offsetWidth
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const curHeight = dragDom.offsetHeight
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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 xl = e.clientX - disX
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const yl = e.clientY - disY
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dragDom.style.width = `${curWidth + xl}px`
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dragDom.style.height = `${curHeight + yl}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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}, false)
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dragDom.appendChild(lineEl)
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}
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}
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