214 lines
5.7 KiB
Vue
214 lines
5.7 KiB
Vue
<template>
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<div id="main-app">
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<header class="app-header">
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<div class="logo" @click="$router.push('/')">
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<h1>MicroApp 主应用</h1>
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</div>
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<nav class="nav-links">
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<router-link to="/home">首页</router-link>
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<router-link to="/child-app">Vue2 子应用</router-link>
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<router-link to="/vue3-app">Vue3 子应用</router-link>
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<router-link to="/mock-app">💥主vs子</router-link>
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<router-link to="/mock-app-2">🔵子vs子</router-link>
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</nav>
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</header>
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<main class="app-main">
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<router-view />
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</main>
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</div>
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</template>
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<script setup lang="ts">
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// 根组件 — 提供全局布局（头部导航 + 内容区）
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</script>
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<style>
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/* ============================================
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全局样式重置（主应用）
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注意：以下使用了 h2 / button / p / table / code
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等通用选择器。在微前端场景中，这些选择器会：
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1. 影响主应用自身的元素 ✅ (预期行为)
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2. 泄漏到 iframe: false 的子应用中 ⚠️ (样式冲突)
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============================================ */
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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html, body {
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height: 100%;
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
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'Helvetica Neue', Arial, 'Microsoft YaHei', sans-serif;
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color: #333;
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background: #f5f6f7;
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}
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#app {
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height: 100%;
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}
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/* ---------- 主应用内容区样式（限定在主应用自身页面内） ---------- */
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/*
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问题：子应用在 iframe: false 模式下，DOM 直接嵌入主文档，
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挂在 <router-view> → <ChildApp.vue> → <micro-app> 下面，
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而 <router-view> 又在 .app-main 内部。
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所以 .app-main h2 这种「后代选择器」会穿透到子应用的 h2。
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之前（会泄漏）: h2 { ... } ← 没有作用域，100% 泄漏
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中间（仍泄漏）: .app-main h2 { ... } ← 子应用也在 .app-main 里！
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现在（已修复）: .app-main > :not(.child-app-wrapper) h2 { ... }
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↑ 用子选择器 > 只匹配 .app-main 的直接子元素，
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再用 :not(.child-app-wrapper) 排除子应用容器，
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彻底阻断样式进入 micro-app 内部
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DOM 层级示意：
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.app-main
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├── div.home-page ← :not(.child-app-wrapper) → ✅ 样式生效
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└── div.child-app-wrapper ← 被 :not() 排除 → ❌ 样式不生效
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└── <micro-app>
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└── 子应用 h2/button/p... ← 安全，不受主应用样式影响
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*/
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/* 冲突点 ①：h2 — 主应用想要紫色渐变标题 */
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.app-main > :not(.child-app-wrapper) h2 {
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font-family: 'Microsoft YaHei', sans-serif !important;
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font-size: 20px !important;
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color: #667eea !important;
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border-bottom: 2px solid #667eea !important;
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padding-bottom: 8px !important;
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margin: 12px 0 !important;
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text-transform: none !important;
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border-left: none !important;
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}
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/* 冲突点 ②：button — 主应用想要紫色直角按钮 */
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.app-main > :not(.child-app-wrapper) button {
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background: #667eea !important;
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color: #fff !important;
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border: none !important;
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border-radius: 4px !important;
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padding: 6px 16px !important;
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font-size: 13px !important;
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font-weight: 500 !important;
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cursor: pointer !important;
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letter-spacing: 0 !important;
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}
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.app-main > :not(.child-app-wrapper) button:hover {
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background: #5a6fd6 !important;
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transform: none !important;
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}
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/* 冲突点 ③：p 段落 — 主应用想要紧凑排版 */
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.app-main > :not(.child-app-wrapper) p {
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font-size: 14px !important;
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line-height: 1.6 !important;
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color: #444 !important;
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margin-bottom: 8px !important;
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}
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/* 冲突点 ④：table — 主应用想要紫色无边框表格 */
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.app-main > :not(.child-app-wrapper) table {
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border-collapse: collapse !important;
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width: 100% !important;
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border: none !important;
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}
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.app-main > :not(.child-app-wrapper) th {
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background: #667eea !important;
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color: white !important;
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padding: 8px !important;
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text-align: left !important;
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font-size: 13px !important;
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}
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.app-main > :not(.child-app-wrapper) td {
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padding: 6px 8px !important;
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border-bottom: 1px solid #e0e0e0 !important;
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font-size: 13px !important;
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}
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/* 冲突点 ⑤：code 标签 — 主应用想要紫色代码块 */
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.app-main > :not(.child-app-wrapper) code {
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background: #e8e0f0 !important;
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color: #5e35b1 !important;
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border: 1px solid #b39ddb !important;
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padding: 2px 6px !important;
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border-radius: 3px !important;
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font-size: 13px !important;
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}
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/* 主应用布局 */
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.main-style-source {
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display: inline-block;
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padding: 2px 10px;
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border-radius: 4px;
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font-size: 11px;
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font-weight: bold;
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margin-left: 8px;
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}
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.label-main {
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background: #667eea;
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color: white;
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}
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#main-app {
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display: flex;
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flex-direction: column;
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height: 100%;
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}
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/* 头部导航 */
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.app-header {
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display: flex;
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align-items: center;
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justify-content: space-between;
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height: 56px;
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padding: 0 24px;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: #fff;
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box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
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flex-shrink: 0;
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}
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.logo {
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cursor: pointer;
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}
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.logo h1 {
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font-size: 18px;
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font-weight: 600;
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letter-spacing: 1px;
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}
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.nav-links {
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display: flex;
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gap: 8px;
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}
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.nav-links a {
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color: rgba(255, 255, 255, 0.85);
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text-decoration: none;
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padding: 6px 16px;
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border-radius: 6px;
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font-size: 14px;
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transition: all 0.2s ease;
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}
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.nav-links a:hover {
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color: #fff;
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background: rgba(255, 255, 255, 0.15);
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}
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.nav-links a.router-link-active {
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color: #fff;
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background: rgba(255, 255, 255, 0.2);
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font-weight: 500;
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}
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/* 主内容区 */
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.app-main {
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flex: 1;
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overflow: auto;
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}
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</style>
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