Pre Merge pull request !234 from 于心/adv

src/components/RightToolbar/index.vue

@@ -53,6 +53,7 @@ const style = computed(() => {
 // 搜索
 function toggleSearch() {
   emits('update:showSearch', !props.showSearch);
+  nextTick(() => window.dispatchEvent(new Event('resize')));
 }
 
 // 刷新

src/directive/common/adaptive.ts

@@ -0,0 +1,74 @@
+import type { Directive, DirectiveBinding } from 'vue';
+
+// 扩展 HTMLElement 类型
+interface AdaptiveElement extends HTMLElement {
+  _resizeListener?: () => void;
+}
+
+// 配置接口
+interface AdaptiveOptions {
+  height?: number; // 距离底部的距离，默认 90
+}
+
+const DEFAULT_HEIGHT = 105;
+
+/**
+ * 自适应高度指令
+ * 用法：
+ * <div v-adaptive></div>
+ * <div v-adaptive="{ height: 60 }"></div>
+ */
+const vAdaptiveHeight: Directive<AdaptiveElement, AdaptiveOptions> = {
+  mounted(el, binding: DirectiveBinding<AdaptiveOptions>) {
+    // 获取配置
+    const config = binding.value || {};
+    const bottomHeight = typeof config.height === 'number' ? config.height : DEFAULT_HEIGHT;
+
+    // 设置高度
+    const updateHeight = () => {
+      const rect = el.getBoundingClientRect();
+      const top = rect.top; // 更准确
+      const pageHeight = window.innerHeight;
+      el.style.height = `${pageHeight - top - bottomHeight}px`;
+      el.style.overflowY = 'auto';
+    };
+
+    // 防抖：避免频繁触发
+    let resizeTimer: number;
+    const onResize = () => {
+      clearTimeout(resizeTimer);
+      resizeTimer = window.setTimeout(() => {
+        requestAnimationFrame(updateHeight);
+      }, 100);
+    };
+
+    // 保存监听器，用于销毁
+    el._resizeListener = onResize;
+
+    // 初始设置
+    updateHeight();
+
+    // 监听 resize
+    window.addEventListener('resize', onResize);
+  },
+
+  // 组件更新时重新计算（比如父组件 re-render）
+  updated(el, binding: DirectiveBinding<AdaptiveOptions>) {
+    const config = binding.value || {};
+    const bottomHeight = typeof config.height === 'number' ? config.height : DEFAULT_HEIGHT;
+
+    const rect = el.getBoundingClientRect();
+    const top = rect.top;
+    const pageHeight = window.innerHeight;
+    el.style.height = `${pageHeight - top - bottomHeight}px`;
+  },
+
+  unmounted(el) {
+    if (el._resizeListener) {
+      window.removeEventListener('resize', el._resizeListener);
+      delete el._resizeListener;
+    }
+  }
+};
+
+export default vAdaptiveHeight;

src/directive/index.ts

@@ -1,9 +1,11 @@
 import copyText from './common/copyText';
+import adaptive from './common/adaptive';
 import { hasPermi, hasRoles } from './permission';
 import { App } from 'vue';
 
 export default (app: App) => {
   app.directive('copyText', copyText);
+  app.directive('adaptive', adaptive);
   app.directive('hasPermi', hasPermi);
   app.directive('hasRoles', hasRoles);
 };

src/views/system/user/index.vue

@@ -6,8 +6,9 @@
         <el-card shadow="hover">
           <el-input v-model="deptName" placeholder="请输入部门名称" prefix-icon="Search" clearable />
           <el-tree
+            v-adaptive="{ height: 35 }"
             ref="deptTreeRef"
-            class="mt-2"
+            class="mt-2 overflow-y-auto"
             node-key="id"
             :data="deptOptions"
             :props="{ label: 'label', children: 'children' } as any"
@@ -95,7 +96,7 @@
             </el-row>
           </template>
 
-          <el-table v-loading="loading" border :data="userList" @selection-change="handleSelectionChange">
+          <el-table v-adaptive="{ height: 105 }" v-loading="loading" border :data="userList" @selection-change="handleSelectionChange">
             <el-table-column type="selection" width="50" align="center" />
             <el-table-column v-if="columns[0].visible" key="userId" label="用户编号" align="center" prop="userId" />
             <el-table-column v-if="columns[1].visible" key="userName" label="用户名称" align="center" prop="userName" :show-overflow-tooltip="true" />