| 1 | /** |
| 2 | * Chat 布局组件 |
| 3 | * 包含移动端公告提示 |
| 4 | */ |
| 5 | 'use client' |
| 6 | |
| 7 | import { Bot, X } from 'lucide-react' |
| 8 | import { useEffect, useRef, useState } from 'react' |
| 9 | import { useTransClient } from '@/app/i18n/client' |
| 10 | import styles from './layout.module.css' |
| 11 | |
| 12 | const STORAGE_KEY = 'chat-announcement-dismissed' |
| 13 | |
| 14 | /** |
| 15 | * 移动端公告提示组件 |
| 16 | * 仅在移动端显示，浮动在内容区 |
| 17 | * 通过获取 #chatHeader 元素来动态定位，适配手机状态栏高度 |
| 18 | */ |
| 19 | function MobileAnnouncementTip() { |
| 20 | const { t } = useTransClient('home') |
| 21 | const text = t('announcement.text') |
| 22 | const containerRef = useRef<HTMLDivElement>(null) |
| 23 | const textRef = useRef<HTMLSpanElement>(null) |
| 24 | const [needsScroll, setNeedsScroll] = useState(false) |
| 25 | const [dismissed, setDismissed] = useState(true) |
| 26 | const [topPosition, setTopPosition] = useState<number | null>(null) |
| 27 | |
| 28 | useEffect(() => { |
| 29 | try { |
| 30 | const isDismissed = sessionStorage.getItem(STORAGE_KEY) === 'true' |
| 31 | setDismissed(isDismissed) |
| 32 | } |
| 33 | catch { |
| 34 | setDismissed(false) |
| 35 | } |
| 36 | }, []) |
| 37 | |
| 38 | // 通过 chatHeader 元素计算定位 |
| 39 | useEffect(() => { |
| 40 | if (dismissed) |
| 41 | return |
| 42 | |
| 43 | const updatePosition = () => { |
| 44 | const chatHeader = document.getElementById('chatHeader') |
| 45 | if (chatHeader) { |
| 46 | const rect = chatHeader.getBoundingClientRect() |
| 47 | // 定位在 header 底部下方 8px |
| 48 | setTopPosition(rect.bottom + 8) |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | // 初始计算位置 |
| 53 | updatePosition() |
| 54 | |
| 55 | // 使用 MutationObserver 监听 DOM 变化，确保 chatHeader 加载后能获取到 |
| 56 | const observer = new MutationObserver(() => { |
| 57 | updatePosition() |
| 58 | }) |
| 59 | observer.observe(document.body, { childList: true, subtree: true }) |
| 60 | |
| 61 | // 监听窗口 resize 和 scroll 事件 |
| 62 | window.addEventListener('resize', updatePosition) |
| 63 | window.addEventListener('scroll', updatePosition, true) |
| 64 | |
| 65 | return () => { |
| 66 | observer.disconnect() |
| 67 | window.removeEventListener('resize', updatePosition) |
| 68 | window.removeEventListener('scroll', updatePosition, true) |
| 69 | } |
| 70 | }, [dismissed]) |
| 71 | |
| 72 | // 检测文字是否需要滚动 |
| 73 | useEffect(() => { |
| 74 | if (dismissed || topPosition === null) |
| 75 | return |
| 76 | |
| 77 | const checkScroll = () => { |
| 78 | if (containerRef.current && textRef.current) { |
| 79 | setNeedsScroll(textRef.current.scrollWidth > containerRef.current.offsetWidth) |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | // 延迟检测，确保 DOM 渲染完成 |
| 84 | const timer = setTimeout(checkScroll, 100) |
| 85 | window.addEventListener('resize', checkScroll) |
| 86 | return () => { |
| 87 | clearTimeout(timer) |
| 88 | window.removeEventListener('resize', checkScroll) |
| 89 | } |
| 90 | }, [text, dismissed, topPosition]) |
| 91 | |
| 92 | const handleDismiss = () => { |
| 93 | setDismissed(true) |
| 94 | try { |
| 95 | sessionStorage.setItem(STORAGE_KEY, 'true') |
| 96 | } |
| 97 | catch { |
| 98 | // ignore |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | // 未加载位置或已关闭时不显示 |
| 103 | if (dismissed || topPosition === null) |
| 104 | return null |
| 105 | |
| 106 | return ( |
| 107 | // 仅移动端显示，通过 chatHeader 动态定位 |
| 108 | <div |
| 109 | className="md:hidden fixed left-1/2 -translate-x-1/2 z-10 w-[calc(100%-24px)] max-w-lg" |
| 110 | style={{ top: topPosition }} |
| 111 | > |
| 112 | <div className="flex items-center gap-2 px-3 py-1.5 rounded-lg bg-background shadow"> |
| 113 | <Bot className="w-4 h-4 text-muted-foreground shrink-0" /> |
| 114 | <div ref={containerRef} className="flex-1 overflow-hidden flex items-center min-h-5"> |
| 115 | {needsScroll ? ( |
| 116 | <div className={styles.marquee}> |
| 117 | <span ref={textRef} className="text-xs text-muted-foreground whitespace-nowrap pr-8"> |
| 118 | {text} |
| 119 | </span> |
| 120 | <span className="text-xs text-muted-foreground whitespace-nowrap pr-8">{text}</span> |
| 121 | </div> |
| 122 | ) : ( |
| 123 | <span ref={textRef} className="text-xs text-muted-foreground whitespace-nowrap"> |
| 124 | {text} |
| 125 | </span> |
| 126 | )} |
| 127 | </div> |
| 128 | <button |
| 129 | type="button" |
| 130 | onClick={handleDismiss} |
| 131 | className="p-1 rounded hover:bg-muted text-muted-foreground/60 hover:text-muted-foreground transition-colors cursor-pointer shrink-0" |
| 132 | aria-label="关闭" |
| 133 | > |
| 134 | <X className="w-3.5 h-3.5" /> |
| 135 | </button> |
| 136 | </div> |
| 137 | </div> |
| 138 | ) |
| 139 | } |
| 140 | |
| 141 | export default function ChatLayout({ children }: { children: React.ReactNode }) { |
| 142 | return ( |
| 143 | <div className="relative flex flex-col h-full"> |
| 144 | <MobileAnnouncementTip /> |
| 145 | <div className="flex-1 min-h-0">{children}</div> |
| 146 | </div> |
| 147 | ) |
| 148 | } |
| 149 |