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cube-page-override

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使用 @newlifex/cube-vue 的 Section 机制覆盖/扩展页面组件。 当用户说"覆盖页面"、"扩展页面"、"自定义组件"、"修改框架组件"时使用。 Section 机制允许在不修改框架源码的情况下,覆盖搜索栏、表格、操作按钮等页面区块。

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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/NewLifeX/NewLife.Cube/blob/HEAD/NewLife.Cube.Vue/skills/cube-page-override/SKILL.md

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

@newlifex/cube-vue 页面覆盖 (Section)

什么时候用

当用户需要修改/覆盖框架默认组件(如搜索栏、表格、分页),又不希望修改框架源码时使用。

Section 机制原理

┌─────────────────────────────────────────────────┐
│                  框架组件                        │
│  ┌─────────┐  ┌─────────┐  ┌─────────────────┐  │
│  │ Header  │  │ Content │  │    Footer       │  │
│  └─────────┘  └─────────┘  └─────────────────┘  │
│       ↑           ↑              ↑              │
│       │           │              │              │
│   ┌───┴───┐   ┌───┴───┐      ┌───┴───┐         │
│   │Section│   │Section│      │Section│         │
│   │覆盖   │   │覆盖   │      │覆盖   │         │
│   └───────┘   └───────┘      └───────┘         │
└─────────────────────────────────────────────────┘

命名规则

规则说明
大写开头文件名必须以大写字母开头,如 ListSearchBar.vue
PascalCase多个单词时首字母都大写,如 UserDetailHeader.vue
禁止小写index.vue、form.vue 等小写开头的文件不会被扫描

常用 Section 覆盖点

Section 名称覆盖位置用途
ListSearchBar.vue列表页面搜索栏自定义搜索条件
ListToolbar.vue列表工具栏添加自定义按钮
TableColumns.vue表格列配置修改列定义
FormFields.vue表单字段自定义表单控件
DetailHeader.vue详情页头部自定义详情头部
Pagination.vue分页组件自定义分页样式

创建 Section 组件

示例:覆盖列表页搜索栏

1. 在应用的 views 目录下创建

apps/<app-name>/src/views/
└── User/
    ├── index.vue              # 列表主页面
    └── ListSearchBar.vue      # 搜索栏覆盖组件

2. 编写 Section 组件

<template>
  <div class="custom-search-bar">
    <el-row :gutter="16">
      <el-col :span="8">
        <el-input
          v-model="searchForm.name"
          placeholder="请输入用户名"
          clearable
        />
      </el-col>
      <el-col :span="8">
        <el-select v-model="searchForm.status" placeholder="请选择状态">
          <el-option label="启用" :value="1" />
          <el-option label="禁用" :value="0" />
        </el-select>
      </el-col>
      <el-col :span="8">
        <el-button type="primary" @click="handleSearch">搜索</el-button>
        <el-button @click="handleReset">重置</el-button>
        <el-button type="success" @click="handleExport">导出</el-button>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive } from 'vue';

// 搜索表单
const searchForm = reactive({
  name: '',
  status: undefined as number | undefined,
});

// 搜索事件 - 触发父组件刷新
const emit = defineEmits<{
  search: [form: typeof searchForm];
  reset: [];
}>();

function handleSearch() {
  emit('search', searchForm);
}

function handleReset() {
  searchForm.name = '';
  searchForm.status = undefined;
  emit('reset');
}

function handleExport() {
  // 自定义导出逻辑
  console.log('导出数据');
}
</script>

<style scoped>
.custom-search-bar {
  padding: 16px;
  background: #fff;
  border-radius: 4px;
}
</style>

示例:覆盖工具栏

<template>
  <div class="custom-toolbar">
    <el-space>
      <el-button type="primary" @click="handleAdd">
        <el-icon><Plus /></el-icon>
        新增用户
      </el-button>
      <el-button @click="handleBatchImport">
        <el-icon><Upload /></el-icon>
        批量导入
      </el-button>
      <el-button type="danger" @click="handleBatchDelete">
        <el-icon><Delete /></el-icon>
        批量删除
      </el-button>
    </el-space>
  </div>
</template>

<script setup lang="ts">
import { Plus, Upload, Delete } from '@element-plus/icons-vue';

function handleAdd() {
  // 新增逻辑
}

function handleBatchImport() {
  // 批量导入逻辑
}

function handleBatchDelete() {
  // 批量删除逻辑
}
</script>

<style scoped>
.custom-toolbar {
  padding: 12px 16px;
  border-bottom: 1px solid #ebeef5;
}
</style>

与父组件通信

Section 组件通过 defineEmits 与父组件通信:

// 定义事件
const emit = defineEmits<{
  search: [form: object];
  reset: [];
  refresh: [];
  open: [id: number];
}>();

// 触发事件
emit('search', searchForm);
emit('reset');
emit('refresh');
emit('open', 123);

自动注册

Vite 插件会自动扫描并注册 Section 组件:

  1. 插件在构建时扫描 views/ 目录
  2. 收集所有以大写字母开头的 .vue 文件
  3. 通过 virtual:@newlifex/cube-vue-sections 虚拟模块导出
  4. initApp() 时自动调用 registerPageSections() 注册

调试 Section

确认 Section 是否生效:

  1. 打开浏览器开发者工具
  2. 在 Vue Devtools 中查看 pageSections 状态
  3. 或检查控制台输出的 Section 注册信息

限制

  • Section 组件只能覆盖框架预设的覆盖点
  • 需要先确认框架是否有对应的覆盖点
  • 组件名称必须严格遵守大写开头规则

示例:完整覆盖用户列表页

apps/<app-name>/src/views/User/
├── index.vue              # 主页面(由后端路由提供)
├── ListSearchBar.vue      # 覆盖搜索栏
├── ListToolbar.vue        # 覆盖工具栏
└── TableColumns.vue       # 覆盖表格列(如果支持)