52 lines
1.6 KiB
JavaScript
52 lines
1.6 KiB
JavaScript
export default{
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bind(el, binding) {
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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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function getStyle(dom, attr) {
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if (dom.currentStyle) {
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return dom.currentStyle[attr]
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} else {
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return getComputedStyle(dom, false)[attr]
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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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// 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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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.cssText += `;left:${l + styL}px;top:${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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