自定义可拖动弹窗宽度指令

ruoyi-ui/src/directive/dialog/dragWidth.js

+/**
+* v-dialogDragWidth 可拖动弹窗宽度
+* Copyright (c) 2019 ruoyi
+*/
+
+export default {
+    bind(el) {
+        const dragDom = el.querySelector('.el-dialog');
+        const lineEl = document.createElement('div');
+        lineEl.style = 'width: 5px; background: inherit; height: 80%; position: absolute; right: 0; top: 0; bottom: 0; margin: auto; z-index: 1; cursor: w-resize;';
+        lineEl.addEventListener('mousedown',
+            function (e) {
+                // 鼠标按下，计算当前元素距离可视区的距离
+                const disX = e.clientX - el.offsetLeft;
+                // 当前宽度
+                const curWidth = dragDom.offsetWidth;
+                document.onmousemove = function (e) {
+                    e.preventDefault(); // 移动时禁用默认事件
+                    // 通过事件委托，计算移动的距离
+                    const l = e.clientX - disX;
+                    dragDom.style.width = `${curWidth + l}px`;
+                };
+                document.onmouseup = function (e) {
+                    document.onmousemove = null;
+                    document.onmouseup = null;
+                };
+            },
+        );
+        dragDom.appendChild(lineEl);
+    }
+}
\ No newline at end of file

ruoyi-ui/src/directive/index.js

 import hasRole from './permission/hasRole'
 import hasPermi from './permission/hasPermi'
 import dialogDrag from './dialog/drag'
+import dialogDragWidth from './dialog/dragWidth'
 
 const install = function(Vue) {
   Vue.directive('hasRole', hasRole)
   Vue.directive('hasPermi', hasPermi)
   Vue.directive('dialogDrag', dialogDrag)
+  Vue.directive('dialogDragWidth', dialogDragWidth)
 }
 
 if (window.Vue) {
   window['hasRole'] = hasRole
   window['hasPermi'] = hasPermi
-  window['dialogDrag'] = dialogDrag
   Vue.use(install); // eslint-disable-line
 }