/**
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* v-dialogDragWidth 可拖动弹窗宽度（右侧边）
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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: 5px; background: inherit; height: 80%; position: absolute; right: 0; top: 0; bottom: 0; margin: auto; z-index: 1; cursor: w-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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// 当前宽度
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const curWidth = dragDom.offsetWidth;
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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 = `${curWidth + 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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}, false);
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dragDom.appendChild(lineEl);
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}
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}
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