91 lines
3.7 KiB
Plaintext
91 lines
3.7 KiB
Plaintext
import React, { useState } from 'react';
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import './SideMenu.css';
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/**
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* Aurora Admin SideMenu（React）
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* 对齐 组件7.txt SideMenu 规范：多级、图标、徽章、选中态#F0F5FF+左指示条、折叠悬浮
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*
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* props:
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* - value / defaultValue : 当前选中 key
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* - items : [{ key, label, icon?, badge?, children?, disabled? }]
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* - collapsed
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* - onSelect(key)
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*/
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export default function SideMenu({ value, defaultValue = '', items = [], collapsed = false, onSelect }) {
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const [active, setActive] = useState(value !== undefined ? value : defaultValue);
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const [openKeys, setOpenKeys] = useState([]);
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const [hoverKey, setHoverKey] = useState('');
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const [popTop, setPopTop] = useState(0);
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const current = value !== undefined ? value : active;
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const select = (key) => { if (value === undefined) setActive(key); onSelect && onSelect(key); setHoverKey(''); };
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const onTopClick = (it) => {
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if (it.disabled) return;
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if (it.children && it.children.length) {
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if (collapsed) return;
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setOpenKeys(openKeys.includes(it.key) ? openKeys.filter(k => k !== it.key) : [...openKeys, it.key]);
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} else select(it.key);
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};
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const onHover = (it, e) => { if (collapsed && it.children) { setHoverKey(it.key); setPopTop(e.currentTarget.offsetTop); } };
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const popItem = items.find(x => x.key === hoverKey) || null;
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return (
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<div className={`aa-sidemenu${collapsed ? ' collapsed' : ''}`} onMouseLeave={() => setHoverKey('')}>
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{items.map(it => {
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const hasChild = it.children && it.children.length;
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const isOpen = openKeys.includes(it.key);
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return (
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<div key={it.key}>
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<div
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className={`aa-menu-item${current === it.key ? ' is-active' : ''}${it.disabled ? ' is-disabled' : ''}${hasChild && isOpen ? ' is-open' : ''}`}
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onClick={() => onTopClick(it)}
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onMouseEnter={(e) => onHover(it, e)}
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>
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<span className="aa-menu-icon">{it.icon}</span>
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<span className="aa-menu-label">{it.label}</span>
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{it.badge && <span className="aa-menu-badge">{it.badge}</span>}
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{hasChild && <span className="aa-menu-arrow">›</span>}
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</div>
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{hasChild && isOpen && !collapsed && (
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<div className="aa-menu-children">
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{it.children.map(c => (
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<div key={c.key} className={`aa-menu-item${current === c.key ? ' is-active' : ''}`} onClick={() => select(c.key)}>
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<span className="aa-menu-label">{c.label}</span>
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</div>
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))}
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</div>
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)}
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</div>
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);
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})}
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{collapsed && hoverKey && popItem && (
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<div className="aa-menu-pop" style={{ top: popTop }}>
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<div className="aa-menu-pop-title">{popItem.label}</div>
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{popItem.children && popItem.children.length ? (
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popItem.children.map(c => (
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<div key={c.key} className={`aa-menu-item${current === c.key ? ' is-active' : ''}`} onClick={() => select(c.key)}>
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<span className="aa-menu-label">{c.label}</span>
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</div>
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))
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) : (
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<div className="aa-menu-item is-active" onClick={() => select(popItem.key)}>
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<span className="aa-menu-label">{popItem.label}</span>
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</div>
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)}
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</div>
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)}
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</div>
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);
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}
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/*
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用法示例：
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import SideMenu from './SideMenu';
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const items = [
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{ key: 'dashboard', label: '仪表盘', icon: '▦' },
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{ key: 'user', label: '用户管理', icon: '◍', badge: 8, children: [{ key: 'list', label: '用户列表' }] }
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];
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<SideMenu items={items} defaultValue="list" collapsed={false} onSelect={setActive} />
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*/
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