refactor(frontend): 抽离公共导航组件，消除各页面重复代码
- 创建 navigation-component.js：统一的PC左边栏 + H5底部导航组件 - 重构 topics.html、logs.html、admin.html、users.html、index.html - 删除各页面重复的 sidebar 和 mobile-nav HTML 结构 - 删除重复的导航样式定义，由组件统一提供 - 修复 component 插入重复的问题，确保每个页面只插入一次 现在修改导航只需更新组件文件，无需改动每个页面，提升维护性。
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// 公共导航组件定义
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const NavigationComponent = {
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props: {
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currentPage: {
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type: String,
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required: true,
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validator: (value) => ['dashboard', 'topics', 'logs', 'users', 'admin'].includes(value)
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},
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isAdmin: {
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type: Boolean,
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default: false
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}
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},
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template: `
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<div class="navigation-wrapper">
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<!-- PC 左边栏 -->
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<aside class="sidebar">
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<div class="sidebar-header">
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<h3>宇之然平台</h3>
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</div>
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<nav class="sidebar-nav">
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<button
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class="sidebar-btn"
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:class="{ active: currentPage === 'dashboard' }"
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@click="$emit('navigate', '/')"
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>📊 系统概览</button>
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<button
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class="sidebar-btn"
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:class="{ active: currentPage === 'topics' }"
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@click="$emit('navigate', 'topics.html')"
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>📋 选题管理</button>
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<button
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class="sidebar-btn"
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:class="{ active: currentPage === 'logs' }"
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@click="$emit('navigate', 'logs.html')"
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>📄 系统日志</button>
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<button
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v-if="isAdmin"
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class="sidebar-btn"
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:class="{ active: currentPage === 'users' }"
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@click="$emit('navigate', 'users.html')"
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>👥 用户管理</button>
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<button
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v-if="isAdmin"
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class="sidebar-btn"
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:class="{ active: currentPage === 'admin' }"
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@click="$emit('navigate', 'admin.html')"
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>⚙️ 系统管理</button>
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</nav>
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</aside>
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<!-- H5 底部导航 -->
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<nav class="mobile-nav">
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<button
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class="mobile-nav-btn"
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:class="{ active: currentPage === 'dashboard' }"
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@click="$emit('navigate', '/')"
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>📊 概览</button>
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<button
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class="mobile-nav-btn"
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:class="{ active: currentPage === 'topics' }"
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@click="$emit('navigate', 'topics.html')"
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>📋 选题</button>
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<button
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class="mobile-nav-btn"
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:class="{ active: currentPage === 'logs' }"
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@click="$emit('navigate', 'logs.html')"
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>📄 日志</button>
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<button
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v-if="isAdmin"
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class="mobile-nav-btn"
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:class="{ active: currentPage === 'users' }"
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@click="$emit('navigate', 'users.html')"
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>👥 用户</button>
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<button
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v-if="isAdmin"
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class="mobile-nav-btn"
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:class="{ active: currentPage === 'admin' }"
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@click="$emit('navigate', 'admin.html')"
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>⚙️ 系统</button>
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</nav>
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</div>
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`
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};
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// 注入公共样式（如果尚未注入）
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function injectNavigationStyles() {
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if (document.getElementById('navigation-styles')) return;
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const styles = `
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/* 导航组件样式 */
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.navigation-wrapper .sidebar {
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width: 180px;
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background: white;
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padding: 12px;
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box-shadow: 2px 0 8px rgba(0,0,0,0.05);
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position: fixed;
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left: 0;
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top: 60px;
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bottom: 0;
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overflow-y: auto;
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z-index: 100;
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}
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.navigation-wrapper .sidebar-header {
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padding: 12px 8px 16px;
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border-bottom: 1px solid #ebeef5;
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margin-bottom: 12px;
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}
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.navigation-wrapper .sidebar-header h3 {
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margin: 0;
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font-size: 16px;
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font-weight: 600;
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color: #303133;
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}
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.navigation-wrapper .sidebar-btn {
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width: 100%;
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text-align: left;
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padding: 10px 12px;
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border: none;
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background: transparent;
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border-radius: 8px;
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margin-bottom: 6px;
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cursor: pointer;
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transition: all 0.3s;
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color: #606266;
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font-size: 14px;
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display: flex;
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align-items: center;
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gap: 6px;
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}
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.navigation-wrapper .sidebar-btn:hover {
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background: #f5f7fa;
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color: #409eff;
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}
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.navigation-wrapper .sidebar-btn.active {
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background: #ecf5ff;
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color: #409eff;
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font-weight: 600;
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}
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.navigation-wrapper .mobile-nav {
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display: none;
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position: fixed;
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bottom: 0;
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left: 0;
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right: 0;
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background: white;
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box-shadow: 0 -2px 8px rgba(0,0,0,0.1);
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padding: 8px 0;
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z-index: 1000;
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justify-content: space-around;
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}
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.navigation-wrapper .mobile-nav-btn {
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flex: 1;
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border: none;
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background: transparent;
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padding: 10px 4px;
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text-align: center;
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font-size: 11px;
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color: #606266;
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cursor: pointer;
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display: flex;
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flex-direction: column;
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align-items: center;
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gap: 2px;
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}
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.navigation-wrapper .mobile-nav-btn:hover {
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color: #409eff;
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}
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.navigation-wrapper .mobile-nav-btn.active {
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color: #409eff;
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font-weight: 600;
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}
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@media (max-width: 768px) {
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.navigation-wrapper .sidebar {
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display: none !important;
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}
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.navigation-wrapper .mobile-nav {
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display: flex;
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}
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}
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@media (min-width: 769px) {
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.navigation-wrapper .mobile-nav {
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display: none !important;
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}
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}
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`;
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const styleEl = document.createElement('style');
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styleEl.id = 'navigation-styles';
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styleEl.textContent = styles;
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document.head.appendChild(styleEl);
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}
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// 安装组件到Vue应用
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function installNavigation(app, options = {}) {
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injectNavigationStyles();
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app.component('navigation-component', NavigationComponent);
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// 添加全局redirectToPage方法（兼容旧代码）
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app.config.globalProperties.$redirectToPage = (path) => {
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window.location.href = path;
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};
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return app;
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}
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// 导出到全局（兼容直接使用）
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if (typeof window !== 'undefined') {
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window.NavigationComponent = NavigationComponent;
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window.installNavigation = installNavigation;
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}
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if (typeof module !== 'undefined' && module.exports) {
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module.exports = { NavigationComponent, installNavigation };
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}
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