feat: 添加导航栏组件,优化路由持久化逻辑,更新存储工具类
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import { NavLink } from 'react-router-dom';
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import { useState, useEffect, ReactNode } from 'react';
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interface RouteItem {
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path: string;
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label: string;
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element: ReactNode;
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}
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interface NavbarProps {
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items?: RouteItem[];
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}
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function Navbar({ items = [] }: NavbarProps) {
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const [isMenuOpen, setIsMenuOpen] = useState(false);
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const [isMobile, setIsMobile] = useState(false);
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const [visibleItems, setVisibleItems] = useState(items.length);
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// 检测屏幕尺寸变化
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useEffect(() => {
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const handleResize = () => {
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const width = window.innerWidth;
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setIsMobile(width < 768);
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// 根据屏幕宽度决定显示多少个导航项
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if (width >= 768) {
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setVisibleItems(items.length); // 大屏幕显示所有
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} else if (width >= 480) {
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// 中等屏幕:如果导航项超过3个,显示3个,否则显示全部
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setVisibleItems(Math.min(3, items.length));
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} else {
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// 小屏幕:如果导航项超过2个,显示2个,否则显示全部
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setVisibleItems(Math.min(2, items.length));
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}
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};
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handleResize(); // 初始调用
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window.addEventListener('resize', handleResize);
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return () => window.removeEventListener('resize', handleResize);
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}, [items.length]); // 添加依赖,如果 items 长度变化也需要重新计算
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// 计算哪些导航项应该显示,哪些应该折叠
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const visibleNavItems = items.slice(0, visibleItems);
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const collapsedNavItems = items.slice(visibleItems);
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return (
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<nav className="nav">
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<div className="nav-content">
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<ul className={`nav-list ${isMenuOpen ? 'open' : ''}`}>
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{/* 显示的导航项 */}
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{visibleNavItems.map((item) => (
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<li key={item?.path}>
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<NavLink
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to={item?.path}
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className={({ isActive }) => (isActive ? 'nav-link active' : 'nav-link')}
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onClick={() => isMobile && setIsMenuOpen(false)}
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>
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{item?.label}
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</NavLink>
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</li>
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))}
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{/* 折叠区域逻辑 */}
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{collapsedNavItems.length > 0 && (
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<li className="nav-collapse-item">
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<div className={`nav-collapse-content ${isMenuOpen ? 'show' : ''}`}>
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{isMenuOpen &&
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collapsedNavItems.map((item) => (
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<NavLink
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key={item?.path}
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to={item?.path}
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className={({ isActive }) => (isActive ? 'nav-link active' : 'nav-link')}
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onClick={() => setIsMenuOpen(false)}
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>
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{item?.label}
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</NavLink>
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))}
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</div>
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<button
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className="nav-toggle"
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onClick={() => setIsMenuOpen(!isMenuOpen)}
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aria-label={isMenuOpen ? '收起菜单' : '展开菜单'}
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>
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<span className="nav-toggle-icon">{isMenuOpen ? '×' : '☰'}</span>
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{collapsedNavItems.length > 0 && !isMenuOpen && (
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<span className="nav-collapse-count">+{collapsedNavItems.length}</span>
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)}
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</button>
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</li>
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)}
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</ul>
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</div>
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</nav>
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);
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}
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export default Navbar;
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