迁移聊天室前端工具并优化消息渲染

resources/js/chat-room.js

@@ -0,0 +1,69 @@
+// 聊天室 Vite 入口，集中导出从 Blade 内联脚本迁移出的纯前端工具。
+
+export { escapeHtml, escapeHtmlWithLineBreaks } from "./chat-room/html.js";
+export { applyFontSize, CHAT_FONT_SIZE_STORAGE_KEY, restoreChatFontSize } from "./chat-room/font-size.js";
+export { closeChatImageLightbox, openChatImageLightbox } from "./chat-room/lightbox.js";
+export {
+    BLOCKABLE_SYSTEM_SENDERS,
+    BLOCKED_SYSTEM_SENDERS_STORAGE_KEY,
+    CHAT_SOUND_MUTED_STORAGE_KEY,
+    normalizeChatPreferences,
+    normalizeDailyStatus,
+    parseDailyStatusExpiry,
+} from "./chat-room/preferences-status.js";
+export {
+    normalizeRoomStatus,
+    renderRoomStatusRow,
+    renderRoomsOnlineStatus,
+    renderRoomsOnlineStatusToContainer,
+    resolveRoomUrl,
+} from "./chat-room/rooms.js";
+export { createMessageQueue } from "./chat-room/message-queue.js";
+
+import { escapeHtml, escapeHtmlWithLineBreaks } from "./chat-room/html.js";
+import { applyFontSize, CHAT_FONT_SIZE_STORAGE_KEY, restoreChatFontSize } from "./chat-room/font-size.js";
+import { closeChatImageLightbox, openChatImageLightbox } from "./chat-room/lightbox.js";
+import {
+    BLOCKABLE_SYSTEM_SENDERS,
+    BLOCKED_SYSTEM_SENDERS_STORAGE_KEY,
+    CHAT_SOUND_MUTED_STORAGE_KEY,
+    normalizeChatPreferences,
+    normalizeDailyStatus,
+    parseDailyStatusExpiry,
+} from "./chat-room/preferences-status.js";
+import {
+    normalizeRoomStatus,
+    renderRoomStatusRow,
+    renderRoomsOnlineStatus,
+    renderRoomsOnlineStatusToContainer,
+    resolveRoomUrl,
+} from "./chat-room/rooms.js";
+import { createMessageQueue } from "./chat-room/message-queue.js";
+
+if (typeof window !== "undefined") {
+    window.ChatRoomTools = {
+        escapeHtml,
+        escapeHtmlWithLineBreaks,
+        applyFontSize,
+        CHAT_FONT_SIZE_STORAGE_KEY,
+        restoreChatFontSize,
+        closeChatImageLightbox,
+        openChatImageLightbox,
+        BLOCKABLE_SYSTEM_SENDERS,
+        BLOCKED_SYSTEM_SENDERS_STORAGE_KEY,
+        CHAT_SOUND_MUTED_STORAGE_KEY,
+        normalizeChatPreferences,
+        normalizeDailyStatus,
+        parseDailyStatusExpiry,
+        normalizeRoomStatus,
+        renderRoomStatusRow,
+        renderRoomsOnlineStatus,
+        renderRoomsOnlineStatusToContainer,
+        resolveRoomUrl,
+        createMessageQueue,
+    };
+
+    window.closeChatImageLightbox = closeChatImageLightbox;
+    window.openChatImageLightbox = openChatImageLightbox;
+    window.applyFontSize = applyFontSize;
+}

resources/js/chat-room/font-size.js

@@ -0,0 +1,45 @@
+// 聊天室字号偏好控制，保留旧的 localStorage key 以兼容已有用户设置。
+
+export const CHAT_FONT_SIZE_STORAGE_KEY = "chat_font_size";
+
+/**
+ * 应用字号到聊天消息窗口，并保存到 localStorage。
+ *
+ * @param {string|number} size 字号大小
+ * @returns {boolean}
+ */
+export function applyFontSize(size) {
+    const px = Number.parseInt(size, 10);
+    if (Number.isNaN(px) || px < 10 || px > 30) {
+        return false;
+    }
+
+    const publicContainer = document.getElementById("chat-messages-container");
+    const privateContainer = document.getElementById("chat-messages-container2");
+    if (publicContainer) {
+        publicContainer.style.fontSize = `${px}px`;
+    }
+    if (privateContainer) {
+        privateContainer.style.fontSize = `${px}px`;
+    }
+
+    localStorage.setItem(CHAT_FONT_SIZE_STORAGE_KEY, String(px));
+
+    const selector = document.getElementById("font_size_select");
+    if (selector) {
+        selector.value = String(px);
+    }
+
+    return true;
+}
+
+/**
+ * 从 localStorage 恢复已保存的聊天室字号。
+ *
+ * @returns {boolean}
+ */
+export function restoreChatFontSize() {
+    const saved = localStorage.getItem(CHAT_FONT_SIZE_STORAGE_KEY);
+
+    return saved ? applyFontSize(saved) : false;
+}

resources/js/chat-room/html.js

@@ -0,0 +1,29 @@
+// 聊天室前端 HTML 安全工具，供 Blade 内联脚本迁移到 Vite 后复用。
+
+const HTML_ESCAPE_MAP = {
+    "&": "&",
+    "<": "&lt;",
+    ">": "&gt;",
+    '"': "&quot;",
+    "'": "&#039;",
+};
+
+/**
+ * 转义可被拼入 innerHTML 的动态文本。
+ *
+ * @param {unknown} value
+ * @returns {string}
+ */
+export function escapeHtml(value) {
+    return String(value ?? "").replace(/[&<>"']/g, (char) => HTML_ESCAPE_MAP[char]);
+}
+
+/**
+ * 转义多行文本，并保留换行展示。
+ *
+ * @param {unknown} value
+ * @returns {string}
+ */
+export function escapeHtmlWithLineBreaks(value) {
+    return escapeHtml(value).replace(/\n/g, "<br>");
+}

resources/js/chat-room/lightbox.js

@@ -0,0 +1,54 @@
+// 聊天室图片预览层控制，迁出 Blade 内联脚本后仍通过 window 全局函数兼容现有 onclick。
+
+/**
+ * 打开聊天图片大图预览层。
+ *
+ * @param {string} imageUrl 图片地址
+ * @param {string} imageName 图片名称
+ * @returns {void}
+ */
+export function openChatImageLightbox(imageUrl, imageName = "聊天图片") {
+    const lightbox = document.getElementById("chat-image-lightbox");
+    const imageEl = document.getElementById("chat-image-lightbox-img");
+    const nameEl = document.getElementById("chat-image-lightbox-name");
+
+    if (!lightbox || !imageEl || !imageUrl) {
+        return;
+    }
+
+    imageEl.src = imageUrl;
+    imageEl.alt = imageName;
+
+    if (nameEl) {
+        nameEl.textContent = imageName;
+    }
+
+    lightbox.style.display = "block";
+    document.body.style.overflow = "hidden";
+}
+
+/**
+ * 关闭聊天图片大图预览层。
+ *
+ * @param {Event|null} event 点击事件
+ * @returns {void}
+ */
+export function closeChatImageLightbox(event = null) {
+    if (event && event.target !== event.currentTarget) {
+        return;
+    }
+
+    const lightbox = document.getElementById("chat-image-lightbox");
+    if (!lightbox) {
+        return;
+    }
+
+    lightbox.style.display = "none";
+
+    const imageEl = document.getElementById("chat-image-lightbox-img");
+    if (imageEl) {
+        imageEl.src = "";
+    }
+
+    document.body.style.overflow = "";
+}

resources/js/chat-room/message-queue.js

@@ -0,0 +1,63 @@
+// 聊天室消息队列工具，用于后续迁移接收消息、批量渲染和节流刷新逻辑。
+
+/**
+ * 创建可控长度的消息队列。
+ *
+ * @param {{limit?:number, onFlush?:(messages:unknown[])=>void, scheduler?:(callback:()=>void)=>unknown}} options
+ * @returns {{enqueue:(message:unknown)=>number, flush:()=>unknown[], scheduleFlush:()=>void, clear:()=>void, size:()=>number, toArray:()=>unknown[]}}
+ */
+export function createMessageQueue(options = {}) {
+    const limit = Math.max(Number.parseInt(options.limit, 10) || 200, 1);
+    const queue = [];
+    let flushScheduled = false;
+
+    const scheduler = typeof options.scheduler === "function"
+        ? options.scheduler
+        : (callback) => {
+            const requestFrame = globalThis.requestAnimationFrame || ((handler) => globalThis.setTimeout(handler, 16));
+
+            return requestFrame(callback);
+        };
+
+    const flush = () => {
+        flushScheduled = false;
+        const messages = queue.splice(0, queue.length);
+
+        if (messages.length && typeof options.onFlush === "function") {
+            options.onFlush(messages);
+        }
+
+        return messages;
+    };
+
+    return {
+        enqueue(message) {
+            queue.push(message);
+
+            while (queue.length > limit) {
+                queue.shift();
+            }
+
+            return queue.length;
+        },
+        flush,
+        scheduleFlush() {
+            if (flushScheduled) {
+                return;
+            }
+
+            flushScheduled = true;
+            scheduler(flush);
+        },
+        clear() {
+            queue.splice(0, queue.length);
+            flushScheduled = false;
+        },
+        size() {
+            return queue.length;
+        },
+        toArray() {
+            return [...queue];
+        },
+    };
+}

resources/js/chat-room/preferences-status.js

@@ -0,0 +1,75 @@
+// 聊天室偏好与每日状态工具，承接从 Blade 内联脚本迁移出的纯数据规整逻辑。
+
+export const BLOCKABLE_SYSTEM_SENDERS = ["钓鱼播报", "星海小博士", "百家乐", "跑马", "神秘箱子"];
+export const BLOCKED_SYSTEM_SENDERS_STORAGE_KEY = "chat_blocked_system_senders";
+export const CHAT_SOUND_MUTED_STORAGE_KEY = "chat_sound_muted";
+
+/**
+ * 规整聊天室偏好对象，过滤非法配置并补齐默认值。
+ *
+ * @param {Record<string, unknown>|null|undefined} raw
+ * @param {string[]} blockableSystemSenders
+ * @returns {{blocked_system_senders:string[],sound_muted:boolean}}
+ */
+export function normalizeChatPreferences(raw, blockableSystemSenders = BLOCKABLE_SYSTEM_SENDERS) {
+    const blocked = Array.isArray(raw?.blocked_system_senders)
+        ? raw.blocked_system_senders.filter((sender) => blockableSystemSenders.includes(sender))
+        : [];
+
+    return {
+        blocked_system_senders: Array.from(new Set(blocked)),
+        sound_muted: Boolean(raw?.sound_muted),
+    };
+}
+
+/**
+ * 解析并标准化状态到期时间。
+ *
+ * @param {string|null|undefined} expiresAt
+ * @returns {Date|null}
+ */
+export function parseDailyStatusExpiry(expiresAt) {
+    if (!expiresAt) {
+        return null;
+    }
+
+    const parsed = new Date(expiresAt);
+
+    return Number.isNaN(parsed.getTime()) ? null : parsed;
+}
+
+/**
+ * 将状态对象规整为前端统一结构，并过滤掉已过期状态。
+ *
+ * @param {Record<string, unknown>|null|undefined} raw
+ * @param {number} nowTimestamp
+ * @returns {{key:string,label:string,icon:string,group:string,expires_at:string}|null}
+ */
+export function normalizeDailyStatus(raw, nowTimestamp = Date.now()) {
+    if (!raw || typeof raw !== "object") {
+        return null;
+    }
+
+    const key = String(raw.key ?? raw.daily_status_key ?? "");
+    const label = String(raw.label ?? raw.daily_status_label ?? "");
+    const icon = String(raw.icon ?? raw.daily_status_icon ?? "");
+    const group = String(raw.group ?? raw.daily_status_group ?? "");
+    const expiresAt = raw.expires_at ?? raw.daily_status_expires_at ?? null;
+    const parsedExpiry = parseDailyStatusExpiry(expiresAt);
+
+    if (!key || !label || !icon || !parsedExpiry) {
+        return null;
+    }
+
+    if (parsedExpiry.getTime() <= nowTimestamp) {
+        return null;
+    }
+
+    return {
+        key,
+        label,
+        icon,
+        group,
+        expires_at: parsedExpiry.toISOString(),
+    };
+}

resources/js/chat-room/rooms.js

@@ -0,0 +1,133 @@
+// 聊天室房间在线状态渲染工具，抽离右侧主面板与手机抽屉可共用的纯前端逻辑。
+
+import { escapeHtml } from "./html.js";
+
+const EMPTY_ROOMS_HTML =
+    '<div style="text-align:center;color:#bbb;padding:16px 0;font-size:11px;">暂无房间</div>';
+
+/**
+ * 转换接口房间数据，过滤异常房间编号。
+ *
+ * @param {Record<string, unknown>} room
+ * @returns {{id:number,name:string,online:number,doorOpen:boolean}|null}
+ */
+export function normalizeRoomStatus(room) {
+    const roomId = Number.parseInt(room?.id, 10);
+
+    if (!Number.isInteger(roomId)) {
+        return null;
+    }
+
+    return {
+        id: roomId,
+        name: String(room?.name ?? ""),
+        online: Math.max(Number.parseInt(room?.online, 10) || 0, 0),
+        doorOpen: Boolean(room?.door_open),
+    };
+}
+
+/**
+ * 生成房间跳转地址，默认保持现有 `/room/{id}` 路径。
+ *
+ * @param {number} roomId
+ * @param {(roomId:number) => string} [roomUrlResolver]
+ * @returns {string}
+ */
+export function resolveRoomUrl(roomId, roomUrlResolver = undefined) {
+    return typeof roomUrlResolver === "function" ? String(roomUrlResolver(roomId)) : `/room/${roomId}`;
+}
+
+/**
+ * 生成可放入 onclick 属性的安全跳转语句。
+ *
+ * @param {number} roomId
+ * @param {(roomId:number) => string} [roomUrlResolver]
+ * @returns {string}
+ */
+function buildRoomClickHandler(roomId, roomUrlResolver = undefined) {
+    const safeUrlLiteral = escapeHtml(JSON.stringify(resolveRoomUrl(roomId, roomUrlResolver)));
+
+    return `onclick="location.href=${safeUrlLiteral}"`;
+}
+
+/**
+ * 渲染单个房间在线状态行。
+ *
+ * @param {{id:number,name:string,online:number,doorOpen:boolean}} room
+ * @param {{currentRoomId?:number|null, variant?:'desktop'|'mobile', roomUrlResolver?:(roomId:number)=>string}} options
+ * @returns {string}
+ */
+export function renderRoomStatusRow(room, options = {}) {
+    const currentRoomId = Number.parseInt(options.currentRoomId, 10);
+    const isCurrent = Number.isInteger(currentRoomId) && room.id === currentRoomId;
+    const variant = options.variant === "mobile" ? "mobile" : "desktop";
+    const safeRoomName = escapeHtml(room.name);
+    const bg = isCurrent ? "#ecf4ff" : "#fff";
+    const nameColor = isCurrent ? "#336699" : (room.doorOpen ? "#444" : "#bbb");
+    const currentTag = isCurrent
+        ? (variant === "mobile"
+            ? '<span style="font-size:9px;color:#7090b0;margin-left:3px;">当前</span>'
+            : '<span style="font-size:9px;color:#336699;opacity:.7;margin-left:3px;">当前</span>')
+        : "";
+    const clickHandler = isCurrent ? "" : buildRoomClickHandler(room.id, options.roomUrlResolver);
+    const badge = room.online > 0
+        ? `<span style="background:#e8f5e9;color:#2e7d32;border-radius:8px;padding:0 ${variant === "mobile" ? "6px" : "5px"};font-size:10px;font-weight:bold;white-space:nowrap;flex-shrink:0;">${room.online}${variant === "mobile" ? "" : " "}人</span>`
+        : `<span style="background:#f5f5f5;color:#bbb;border-radius:8px;padding:0 ${variant === "mobile" ? "6px" : "5px"};font-size:10px;white-space:nowrap;flex-shrink:0;">空</span>`;
+
+    if (variant === "mobile") {
+        return `<div ${clickHandler}
+                    style="display:flex;align-items:center;justify-content:space-between;
+                           padding:6px 10px;border-bottom:1px solid #eef2f8;background:${bg};
+                           cursor:${isCurrent ? "default" : "pointer"};">
+                    <span style="color:${nameColor};font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;margin-right:6px;">
+                        ${safeRoomName}${currentTag}
+                    </span>${badge}
+                </div>`;
+    }
+
+    const border = isCurrent ? "#aac5f0" : "#e0eaf5";
+
+    return `<div ${clickHandler}
+                style="display:flex;align-items:center;justify-content:space-between;
+                       padding:5px 8px;margin:2px 3px;border-radius:5px;
+                       border:1px solid ${border};background:${bg};
+                       cursor:${isCurrent ? "default" : "pointer"};
+                       transition:background .15s;"
+                onmouseover="if(${!isCurrent}) this.style.background='#ddeeff';"
+                onmouseout="this.style.background='${bg}';">
+                <span style="color:${nameColor};font-size:11px;font-weight:${isCurrent ? "bold" : "normal"};overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;margin-right:4px;">
+                    ${safeRoomName}${currentTag}
+                </span>
+                ${badge}
+            </div>`;
+}
+
+/**
+ * 渲染房间在线状态列表 HTML。
+ *
+ * @param {{rooms?: Array<Record<string, unknown>>}} data
+ * @param {{currentRoomId?:number|null, variant?:'desktop'|'mobile', emptyHtml?:string, roomUrlResolver?:(roomId:number)=>string}} options
+ * @returns {string}
+ */
+export function renderRoomsOnlineStatus(data, options = {}) {
+    const rooms = Array.isArray(data?.rooms) ? data.rooms : [];
+    const rows = rooms
+        .map((room) => normalizeRoomStatus(room))
+        .filter(Boolean)
+        .map((room) => renderRoomStatusRow(room, options))
+        .join("");
+
+    return rows || options.emptyHtml || EMPTY_ROOMS_HTML;
+}
+
+/**
+ * 将房间在线状态列表渲染到指定容器。
+ *
+ * @param {{rooms?: Array<Record<string, unknown>>}} data
+ * @param {HTMLElement} container
+ * @param {{currentRoomId?:number|null, variant?:'desktop'|'mobile', emptyHtml?:string, roomUrlResolver?:(roomId:number)=>string}} options
+ * @returns {void}
+ */
+export function renderRoomsOnlineStatusToContainer(data, container, options = {}) {
+    container.innerHTML = renderRoomsOnlineStatus(data, options);
+}

resources/js/chat.js

@@ -1,4 +1,5 @@
 import "./bootstrap";
+import "./chat-room.js";
 
 // 这个文件负责处理浏览器与 Laravel Reverb WebSocket 服务器的通信。
 // 通过 Presence Channel 实现聊天室的核心监听。

resources/views/chat/partials/layout/mobile-drawer.blade.php

@@ -83,7 +83,7 @@
             </select>
             <input id="mob-user-search-input" type="text" placeholder="搜索用户..."
                 style="flex:2;font-size:11px;border:1px solid #b0c8e0;border-radius:3px;padding:2px 6px;color:#333;"
-                oninput="renderMobileUserList()">
+                oninput="scheduleRenderMobileUserList()">
         </div>
 
         {{-- 用户列表容器 --}}
@@ -127,6 +127,10 @@
      * @type {string|null}
      */
     let _mobileDrawerOpen = null;
+    let _mobileUserListRenderTimer = null;
+    let _mobileRoomsOnlineStatusCache = null;
+    let _mobileRoomsOnlineStatusCacheAt = 0;
+    const MOBILE_ROOMS_ONLINE_STATUS_CACHE_TTL = 10000;
 
     /**
      * 打开指定抽屉
@@ -228,6 +232,21 @@
         if (footerEl) footerEl.textContent = count;
     }
 
+    /**
+     * 调度手机端在线名单渲染，避免搜索输入时同步重建整份名单。
+     */
+    function scheduleRenderMobileUserList() {
+        if (_mobileUserListRenderTimer !== null) {
+            return;
+        }
+
+        const scheduleRender = window.requestAnimationFrame || ((callback) => window.setTimeout(callback, 16));
+        _mobileUserListRenderTimer = scheduleRender(() => {
+            _mobileUserListRenderTimer = null;
+            renderMobileUserList();
+        });
+    }
+
     /**
      * 拉取房间列表并渲染到手机端房间容器
      */
@@ -235,34 +254,64 @@
         const container = document.getElementById('mob-rooms-online-list');
         if (!container) return;
 
+        if (_mobileRoomsOnlineStatusCache && Date.now() - _mobileRoomsOnlineStatusCacheAt < MOBILE_ROOMS_ONLINE_STATUS_CACHE_TTL) {
+            renderMobileRoomList(_mobileRoomsOnlineStatusCache, container);
+            return;
+        }
+
         container.innerHTML = '<div style="text-align:center;color:#aaa;padding:16px;font-size:11px;">加载中...</div>';
 
         fetch('{{ route('chat.rooms-online-status') }}')
             .then(r => r.json())
             .then(data => {
-                if (!data.rooms || !data.rooms.length) {
+                _mobileRoomsOnlineStatusCache = data;
-                    container.innerHTML = '<div style="text-align:center;color:#bbb;padding:16px;font-size:11px;">暂无房间</div>';
+                _mobileRoomsOnlineStatusCacheAt = Date.now();
-                    return;
+                renderMobileRoomList(data, container);
-                }
+            })
-                const currentRoomId = window.chatContext?.roomId;
+            .catch(() => {
-                const roomRows = data.rooms.map(room => {
+                container.innerHTML = '<div style="text-align:center;color:#f00;padding:10px;font-size:11px;">加载失败</div>';
-                    const roomId = Number.parseInt(room.id, 10);
+            });
-                    if (!Number.isInteger(roomId)) {
+    }
-                        return '';
-                    }
 
-                    const isCurrent = roomId === currentRoomId;
+    /**
-                    const bg        = isCurrent ? '#ecf4ff' : '#fff';
+     * 渲染手机端房间列表。
-                    const nameColor = isCurrent ? '#336699' : (room.door_open ? '#444' : '#bbb');
+     *
-                    const safeRoomName = escapeMobileDrawerHtml(String(room.name ?? ''));
+     * @param {Object} data 接口返回数据
-                    const safeOnlineCount = Math.max(Number.parseInt(room.online, 10) || 0, 0);
+     * @param {HTMLElement} container 目标容器
-                    const badge     = safeOnlineCount > 0
+     */
-                        ? `<span style="background:#e8f5e9;color:#2e7d32;border-radius:8px;padding:0 6px;font-size:10px;font-weight:bold;">${safeOnlineCount}人</span>`
+    function renderMobileRoomList(data, container) {
-                        : `<span style="background:#f5f5f5;color:#bbb;border-radius:8px;padding:0 6px;font-size:10px;">空</span>`;
+        if (window.ChatRoomTools?.renderRoomsOnlineStatusToContainer) {
-                    const currentTag = isCurrent ? `<span style="font-size:9px;color:#7090b0;margin-left:3px;">当前</span>` : '';
+            window.ChatRoomTools.renderRoomsOnlineStatusToContainer(data, container, {
-                    const clickAttr  = isCurrent ? '' : `onclick="location.href='/room/${roomId}'"`;
+                currentRoomId: window.chatContext?.roomId,
+                variant: 'mobile',
+                emptyHtml: '<div style="text-align:center;color:#bbb;padding:16px;font-size:11px;">暂无房间</div>',
+            });
+            return;
+        }
 
-                    return `<div ${clickAttr}
+        if (!data.rooms || !data.rooms.length) {
+            container.innerHTML = '<div style="text-align:center;color:#bbb;padding:16px;font-size:11px;">暂无房间</div>';
+            return;
+        }
+        const currentRoomId = window.chatContext?.roomId;
+        const roomRows = data.rooms.map(room => {
+            const roomId = Number.parseInt(room.id, 10);
+            if (!Number.isInteger(roomId)) {
+                return '';
+            }
+
+            const isCurrent = roomId === currentRoomId;
+            const bg        = isCurrent ? '#ecf4ff' : '#fff';
+            const nameColor = isCurrent ? '#336699' : (room.door_open ? '#444' : '#bbb');
+            const safeRoomName = escapeMobileDrawerHtml(String(room.name ?? ''));
+            const safeOnlineCount = Math.max(Number.parseInt(room.online, 10) || 0, 0);
+            const badge     = safeOnlineCount > 0
+                ? `<span style="background:#e8f5e9;color:#2e7d32;border-radius:8px;padding:0 6px;font-size:10px;font-weight:bold;">${safeOnlineCount}人</span>`
+                : `<span style="background:#f5f5f5;color:#bbb;border-radius:8px;padding:0 6px;font-size:10px;">空</span>`;
+            const currentTag = isCurrent ? `<span style="font-size:9px;color:#7090b0;margin-left:3px;">当前</span>` : '';
+            const clickAttr  = isCurrent ? '' : `onclick="location.href='/room/${roomId}'"`;
+
+            return `<div ${clickAttr}
                         style="display:flex;align-items:center;justify-content:space-between;
                                padding:6px 10px;border-bottom:1px solid #eef2f8;background:${bg};
                                cursor:${isCurrent ? 'default' : 'pointer'};">
@@ -270,13 +319,9 @@
                             ${safeRoomName}${currentTag}
                         </span>${badge}
                     </div>`;
-                }).filter(Boolean).join('');
+        }).filter(Boolean).join('');
 
-                container.innerHTML = roomRows || '<div style="text-align:center;color:#bbb;padding:16px;font-size:11px;">暂无房间</div>';
+        container.innerHTML = roomRows || '<div style="text-align:center;color:#bbb;padding:16px;font-size:11px;">暂无房间</div>';
-            })
-            .catch(() => {
-                container.innerHTML = '<div style="text-align:center;color:#f00;padding:10px;font-size:11px;">加载失败</div>';
-            });
     }
 
     /**

resources/views/chat/partials/layout/right-panel.blade.php

@@ -37,7 +37,7 @@
                 </select>
             </div>
             <div style="display:flex; align-items:center; gap:2px;">
-                <input type="text" id="user-search-input" placeholder="搜索用户" onkeyup="filterUserList()"
+                <input type="text" id="user-search-input" placeholder="搜索用户" oninput="scheduleFilterUserList()"
                     style="width:100%; font-size:11px; padding:2px 4px; border:1px solid #aac; border-radius:2px; box-sizing:border-box;">
             </div>
         </div>

resources/views/chat/partials/marriage-modals.blade.php

@@ -1420,8 +1420,8 @@
         }
 
         // ── 页面刷新后恢复婚礼红包领取按钮 ─────────────────────────
-        // 延迟 2 秒以确保聊天框和 Alpine 均已完成初始化
+        // 空闲时再查待领取红包，避免和聊天室首屏消息/名单初始化抢网络。
-        setTimeout(async () => {
+        window.deferChatGameBootstrap(async () => {
             try {
                 const res = await fetch('/wedding/pending-envelopes', {
                     headers: {
@@ -1467,6 +1467,6 @@
             } catch (e) {
                 console.warn('[婚礼红包] 恢复待领取按钮失败', e);
             }
-        }, 2000);
+        }, 3000);
     });
 </script>

resources/views/chat/partials/scripts.blade.php

@@ -37,9 +37,9 @@
     const toUserSelect = document.getElementById('to_user');
     const onlineCount = document.getElementById('online-count');
     const onlineCountBottom = document.getElementById('online-count-bottom');
-    const BLOCKED_SYSTEM_SENDERS_STORAGE_KEY = 'chat_blocked_system_senders';
+    const BLOCKED_SYSTEM_SENDERS_STORAGE_KEY = window.ChatRoomTools?.BLOCKED_SYSTEM_SENDERS_STORAGE_KEY || 'chat_blocked_system_senders';
-    const CHAT_SOUND_MUTED_STORAGE_KEY = 'chat_sound_muted';
+    const CHAT_SOUND_MUTED_STORAGE_KEY = window.ChatRoomTools?.CHAT_SOUND_MUTED_STORAGE_KEY || 'chat_sound_muted';
-    const BLOCKABLE_SYSTEM_SENDERS = ['钓鱼播报', '星海小博士', '百家乐', '跑马', '神秘箱子'];
+    const BLOCKABLE_SYSTEM_SENDERS = window.ChatRoomTools?.BLOCKABLE_SYSTEM_SENDERS || ['钓鱼播报', '星海小博士', '百家乐', '跑马', '神秘箱子'];
     const hoverTooltip = document.getElementById('chat-hover-tooltip');
     let activeTooltipTrigger = null;
 
@@ -75,6 +75,13 @@
     let userBadgeRotationTick = 0;
     let userListRenderTimer = null;
     let _maxMsgId = 0; // 记录当前收到的最大消息 ID
+    let pendingChatMessages = [];
+    let chatMessageFlushTimer = null;
+    let userFilterRenderTimer = null;
+    let lastAutosaveNode = null;
+    const CHAT_MESSAGE_FLUSH_BATCH_SIZE = 8;
+    const PUBLIC_MESSAGE_NODE_LIMIT = 600;
+    const PRIVATE_MESSAGE_NODE_LIMIT = 300;
     const initialChatPreferences = normalizeChatPreferences(window.chatContext?.chatPreferences || {});
     let blockedSystemSenders = new Set(initialChatPreferences.blocked_system_senders);
 
@@ -85,6 +92,10 @@
      * @returns {Object}
      */
     function normalizeChatPreferences(raw) {
+        if (window.ChatRoomTools?.normalizeChatPreferences) {
+            return window.ChatRoomTools.normalizeChatPreferences(raw, BLOCKABLE_SYSTEM_SENDERS);
+        }
+
         const blocked = Array.isArray(raw?.blocked_system_senders)
             ? raw.blocked_system_senders.filter(sender => BLOCKABLE_SYSTEM_SENDERS.includes(sender))
             : [];
@@ -103,6 +114,10 @@
      * @returns {Date|null}
      */
     function parseDailyStatusExpiry(expiresAt) {
+        if (window.ChatRoomTools?.parseDailyStatusExpiry) {
+            return window.ChatRoomTools.parseDailyStatusExpiry(expiresAt);
+        }
+
         if (!expiresAt) {
             return null;
         }
@@ -119,6 +134,10 @@
      * @returns {Object|null}
      */
     function normalizeDailyStatus(raw) {
+        if (window.ChatRoomTools?.normalizeDailyStatus) {
+            return window.ChatRoomTools.normalizeDailyStatus(raw);
+        }
+
         if (!raw || typeof raw !== 'object') {
             return null;
         }
@@ -1459,6 +1478,9 @@
 
     // ── Tab 切换 ──────────────────────────────────────
     let _roomsRefreshTimer = null;
+    let _roomsOnlineStatusCache = null;
+    let _roomsOnlineStatusCacheAt = 0;
+    const ROOMS_ONLINE_STATUS_CACHE_TTL = 10000;
 
     function switchTab(tab) {
         // 切换名单/房间 面板
@@ -1470,7 +1492,7 @@
         if (tab === 'rooms') {
             loadRoomsOnlineStatus();
             clearInterval(_roomsRefreshTimer);
-            _roomsRefreshTimer = setInterval(loadRoomsOnlineStatus, 30000);
+            _roomsRefreshTimer = setInterval(() => loadRoomsOnlineStatus(true), 30000);
         } else {
             clearInterval(_roomsRefreshTimer);
             _roomsRefreshTimer = null;
@@ -1482,42 +1504,72 @@
      */
     const _currentRoomId = {{ $room->id }};
 
-    function loadRoomsOnlineStatus() {
+    function loadRoomsOnlineStatus(forceRefresh = false) {
         const container = document.getElementById('rooms-online-list');
         if (!container) {
             return;
         }
 
+        if (!forceRefresh && _roomsOnlineStatusCache && Date.now() - _roomsOnlineStatusCacheAt < ROOMS_ONLINE_STATUS_CACHE_TTL) {
+            renderRoomsOnlineStatus(_roomsOnlineStatusCache, container);
+            return;
+        }
+
         fetch('{{ route('chat.rooms-online-status') }}')
             .then(r => r.json())
             .then(data => {
-                if (!data.rooms || !data.rooms.length) {
+                _roomsOnlineStatusCache = data;
-                    container.innerHTML =
+                _roomsOnlineStatusCacheAt = Date.now();
-                        '<div style="text-align:center;color:#bbb;padding:16px 0;font-size:11px;">暂无房间</div>';
+                renderRoomsOnlineStatus(data, container);
-                    return;
+            })
-                }
+            .catch(() => {
-                const roomRows = data.rooms.map(room => {
+                container.innerHTML =
-                    const roomId = Number.parseInt(room.id, 10);
+                    '<div style="text-align:center;color:#f00;padding:10px;font-size:11px;">加载失败</div>';
-                    if (!Number.isInteger(roomId)) {
+            });
-                        return '';
+    }
-                    }
 
-                    const isCurrent = roomId === _currentRoomId;
+    /**
-                    const closed = !room.door_open;
+     * 渲染房间在线状态列表。
-                    const safeRoomName = escapeHtml(String(room.name ?? ''));
+     *
-                    const safeOnlineCount = Math.max(Number.parseInt(room.online, 10) || 0, 0);
+     * @param {Object} data 接口返回数据
-                    const bg = isCurrent ? '#ecf4ff' : '#fff';
+     * @param {HTMLElement} container 目标容器
-                    const border = isCurrent ? '#aac5f0' : '#e0eaf5';
+     */
-                    const nameColor = isCurrent ? '#336699' : (closed ? '#bbb' : '#444');
+    function renderRoomsOnlineStatus(data, container) {
-                    const badge = safeOnlineCount > 0 ?
+        if (window.ChatRoomTools?.renderRoomsOnlineStatusToContainer) {
-                        `<span style="background:#e8f5e9;color:#2e7d32;border-radius:8px;padding:0 5px;font-size:10px;font-weight:bold;white-space:nowrap;flex-shrink:0;">${safeOnlineCount} 人</span>` :
+            window.ChatRoomTools.renderRoomsOnlineStatusToContainer(data, container, {
-                        `<span style="background:#f5f5f5;color:#bbb;border-radius:8px;padding:0 5px;font-size:10px;white-space:nowrap;flex-shrink:0;">空</span>`;
+                currentRoomId: _currentRoomId,
-                    const currentTag = isCurrent ?
+                variant: 'desktop',
-                        `<span style="font-size:9px;color:#336699;opacity:.7;margin-left:3px;">当前</span>` :
+            });
-                        '';
+            return;
-                    const clickHandler = isCurrent ? '' : `onclick="location.href='/room/${roomId}'"`;
+        }
 
-                    return `<div ${clickHandler}
+        if (!data.rooms || !data.rooms.length) {
+            container.innerHTML =
+                '<div style="text-align:center;color:#bbb;padding:16px 0;font-size:11px;">暂无房间</div>';
+            return;
+        }
+        const roomRows = data.rooms.map(room => {
+            const roomId = Number.parseInt(room.id, 10);
+            if (!Number.isInteger(roomId)) {
+                return '';
+            }
+
+            const isCurrent = roomId === _currentRoomId;
+            const closed = !room.door_open;
+            const safeRoomName = escapeHtml(String(room.name ?? ''));
+            const safeOnlineCount = Math.max(Number.parseInt(room.online, 10) || 0, 0);
+            const bg = isCurrent ? '#ecf4ff' : '#fff';
+            const border = isCurrent ? '#aac5f0' : '#e0eaf5';
+            const nameColor = isCurrent ? '#336699' : (closed ? '#bbb' : '#444');
+            const badge = safeOnlineCount > 0 ?
+                `<span style="background:#e8f5e9;color:#2e7d32;border-radius:8px;padding:0 5px;font-size:10px;font-weight:bold;white-space:nowrap;flex-shrink:0;">${safeOnlineCount} 人</span>` :
+                `<span style="background:#f5f5f5;color:#bbb;border-radius:8px;padding:0 5px;font-size:10px;white-space:nowrap;flex-shrink:0;">空</span>`;
+            const currentTag = isCurrent ?
+                `<span style="font-size:9px;color:#336699;opacity:.7;margin-left:3px;">当前</span>` :
+                '';
+            const clickHandler = isCurrent ? '' : `onclick="location.href='/room/${roomId}'"`;
+
+            return `<div ${clickHandler}
                         style="display:flex;align-items:center;justify-content:space-between;
                                padding:5px 8px;margin:2px 3px;border-radius:5px;
                                border:1px solid ${border};background:${bg};
@@ -1530,15 +1582,10 @@
                         </span>
                         ${badge}
                     </div>`;
-                }).filter(Boolean).join('');
+        }).filter(Boolean).join('');
 
-                container.innerHTML = roomRows ||
+        container.innerHTML = roomRows ||
-                    '<div style="text-align:center;color:#bbb;padding:16px 0;font-size:11px;">暂无房间</div>';
+            '<div style="text-align:center;color:#bbb;padding:16px 0;font-size:11px;">暂无房间</div>';
-            })
-            .catch(() => {
-                container.innerHTML =
-                    '<div style="text-align:center;color:#f00;padding:10px;font-size:11px;">加载失败</div>';
-            });
     }
 
 
@@ -2215,11 +2262,34 @@
 
     // 名单中多种徽标轮换展示时，每 3 秒只刷新徽标槽位，不重建头像行。
     window.setInterval(() => {
+        if (document.hidden) {
+            return;
+        }
+
         userBadgeRotationTick = (userBadgeRotationTick + 1) % 4;
-        refreshRenderedUserBadges();
+        refreshRenderedUserBadges(userList);
+        const mobileUsersList = document.getElementById('mob-online-users-list');
+        if (mobileUsersList?.offsetParent !== null) {
+            refreshRenderedUserBadges(mobileUsersList);
+        }
         syncDailyStatusUi();
     }, 3000);
 
+    /**
+     * 调度用户列表搜索过滤，避免每个按键都同步扫描名单 DOM。
+     */
+    function scheduleFilterUserList() {
+        if (userFilterRenderTimer !== null) {
+            return;
+        }
+
+        const scheduleFilter = window.requestAnimationFrame || ((callback) => window.setTimeout(callback, 16));
+        userFilterRenderTimer = scheduleFilter(() => {
+            userFilterRenderTimer = null;
+            filterUserList();
+        });
+    }
+
     /**
      * 搜索/过滤用户列表
      */
@@ -2246,7 +2316,7 @@
     /**
      * 追加消息到聊天窗格（原版风格：非气泡模式，逐行显示）
      */
-    function appendMessage(msg) {
+    function appendMessage(msg, renderBatch = null) {
         // 记录拉取到的最大消息ID，用于本地清屏功能
         if (msg && msg.id > _maxMsgId) {
             _maxMsgId = msg.id;
@@ -2524,8 +2594,11 @@
         if (msg.welcome_user) {
             div.setAttribute('data-system-user', msg.welcome_user);
             // 收到后端来的新欢迎消息时，把界面上该用户旧的都删掉
-            const oldWelcomes = container.querySelectorAll(`[data-system-user="${msg.welcome_user}"]`);
+            const welcomeSelector = `[data-system-user="${msg.welcome_user}"]`;
+            const oldWelcomes = container.querySelectorAll(welcomeSelector);
             oldWelcomes.forEach(el => el.remove());
+            renderBatch?.publicFragment.querySelectorAll(welcomeSelector).forEach(el => el.remove());
+            renderBatch?.privateFragment.querySelectorAll(welcomeSelector).forEach(el => el.remove());
         }
 
         // 路由规则（复刻原版）：
@@ -2545,18 +2618,136 @@
         if (isRelatedToMe) {
             // 删除旧的存点通知，保持包厢窗口整洁
             if (isAutoSave) {
-                container2.querySelectorAll('[data-autosave="1"]').forEach(el => el.remove());
+                lastAutosaveNode?.remove();
+                lastAutosaveNode = div;
+            }
+            if (renderBatch) {
+                renderBatch.privateFragment.appendChild(div);
+                renderBatch.shouldPrunePrivate = true;
+                renderBatch.shouldScrollPrivate = renderBatch.shouldScrollPrivate || autoScroll;
+                return;
             }
             container2.appendChild(div);
+            pruneMessageContainer(container2, PRIVATE_MESSAGE_NODE_LIMIT);
             if (autoScroll) {
                 container2.scrollTop = container2.scrollHeight;
             }
         } else {
+            if (renderBatch) {
+                renderBatch.publicFragment.appendChild(div);
+                renderBatch.shouldPrunePublic = true;
+                renderBatch.shouldScrollPublic = renderBatch.shouldScrollPublic || autoScroll;
+                return;
+            }
             container.appendChild(div);
+            pruneMessageContainer(container, PUBLIC_MESSAGE_NODE_LIMIT);
             scrollToBottom();
         }
     }
 
+    /**
+     * 裁剪聊天窗口内过旧的消息节点，防止长时间在线后 DOM 无限膨胀。
+     *
+     * @param {HTMLElement} targetContainer 聊天窗口容器
+     * @param {number} maxNodes 最大保留节点数
+     */
+    function pruneMessageContainer(targetContainer, maxNodes) {
+        if (!targetContainer || targetContainer.childElementCount <= maxNodes) {
+            return;
+        }
+
+        while (targetContainer.childElementCount > maxNodes) {
+            const firstNode = targetContainer.firstElementChild;
+            if (firstNode === lastAutosaveNode) {
+                lastAutosaveNode = null;
+            }
+            firstNode?.remove();
+        }
+    }
+
+    /**
+     * 创建聊天消息批量渲染上下文，集中提交 DOM 变更。
+     *
+     * @returns {Object}
+     */
+    function createChatMessageRenderBatch() {
+        return {
+            publicFragment: document.createDocumentFragment(),
+            privateFragment: document.createDocumentFragment(),
+            shouldPrunePublic: false,
+            shouldPrunePrivate: false,
+            shouldScrollPublic: false,
+            shouldScrollPrivate: false,
+        };
+    }
+
+    /**
+     * 提交批量渲染的聊天消息，并把裁剪和滚动合并到每批一次。
+     *
+     * @param {Object} renderBatch 批量渲染上下文
+     */
+    function commitChatMessageRenderBatch(renderBatch) {
+        const hasPublicMessages = renderBatch.publicFragment.childNodes.length > 0;
+        const hasPrivateMessages = renderBatch.privateFragment.childNodes.length > 0;
+
+        if (hasPublicMessages) {
+            container.appendChild(renderBatch.publicFragment);
+        }
+        if (hasPrivateMessages) {
+            container2.appendChild(renderBatch.privateFragment);
+        }
+        if (renderBatch.shouldPrunePublic) {
+            pruneMessageContainer(container, PUBLIC_MESSAGE_NODE_LIMIT);
+        }
+        if (renderBatch.shouldPrunePrivate) {
+            pruneMessageContainer(container2, PRIVATE_MESSAGE_NODE_LIMIT);
+        }
+        if (renderBatch.shouldScrollPublic) {
+            container.scrollTop = container.scrollHeight;
+        }
+        if (renderBatch.shouldScrollPrivate) {
+            container2.scrollTop = container2.scrollHeight;
+        }
+    }
+
+    /**
+     * 将广播消息放入轻量队列，避免连续广播时同步挤占同一帧的 DOM 渲染。
+     */
+    function enqueueChatMessage(msg) {
+        // 本地清屏依赖最大消息 ID，需要在进入队列时先同步，避免延后渲染导致状态滞后。
+        if (msg && msg.id > _maxMsgId) {
+            _maxMsgId = msg.id;
+        }
+
+        pendingChatMessages.push(msg);
+
+        if (chatMessageFlushTimer !== null) {
+            return;
+        }
+
+        const scheduleFlush = window.requestAnimationFrame || ((callback) => window.setTimeout(callback, 16));
+        chatMessageFlushTimer = scheduleFlush(flushQueuedChatMessages);
+    }
+
+    /**
+     * 分批渲染待处理消息，给动画、输入和滚动留出主线程时间。
+     */
+    function flushQueuedChatMessages() {
+        chatMessageFlushTimer = null;
+
+        const batch = pendingChatMessages.splice(0, CHAT_MESSAGE_FLUSH_BATCH_SIZE);
+        const renderBatch = createChatMessageRenderBatch();
+        batch.forEach((msg) => appendMessage(msg, renderBatch));
+        commitChatMessageRenderBatch(renderBatch);
+
+        if (pendingChatMessages.length === 0) {
+            return;
+        }
+
+        const scheduleFlush = window.requestAnimationFrame || ((callback) => window.setTimeout(callback, 16));
+        chatMessageFlushTimer = scheduleFlush(flushQueuedChatMessages);
+    }
+
     /**
      * 将消息追加函数暴露到全局，供页面首次加载时回填历史消息使用。
      */
@@ -2662,7 +2853,7 @@
             .chatContext.username) {
             return;
         }
-        appendMessage(msg);
+        enqueueChatMessage(msg);
 
         if (msg.action === 'vip_presence') {
             showVipPresenceBanner(msg);
@@ -2814,6 +3005,7 @@
                         }
                     });
                 }
+                lastAutosaveNode = say2?.querySelector('[data-autosave="1"]') || null;
 
                 // 显示清屏提示
                 const sysDiv = document.createElement('div');
@@ -3067,38 +3259,9 @@
     window.handleFeatureLocalClear = handleFeatureLocalClear;
     syncDailyStatusUi();
 
-    // ── 字号设置（持久化到 localStorage）─────────────────
-    /**
-     * 应用字号到聊天消息窗口，并保存到 localStorage
-     *
-     * @param {string|number} size  字号大小（px 数字）
-     */
-    function applyFontSize(size) {
-        const px = parseInt(size, 10);
-        if (isNaN(px) || px < 10 || px > 30) return;
-
-        // 同时应用到公聊窗和包厢窗
-        const c1 = document.getElementById('chat-messages-container');
-        const c2 = document.getElementById('chat-messages-container2');
-        if (c1) c1.style.fontSize = px + 'px';
-        if (c2) c2.style.fontSize = px + 'px';
-
-        // 持久化（key 带房间 ID，不同房间各自记住）
-        const key = 'chat_font_size';
-        localStorage.setItem(key, px);
-
-        // 同步 select 显示
-        const sel = document.getElementById('font_size_select');
-        if (sel) sel.value = String(px);
-    }
-    window.applyFontSize = applyFontSize;
-
     // 页面加载后从 localStorage 恢复之前保存的字号
     document.addEventListener('DOMContentLoaded', () => {
-        const saved = localStorage.getItem('chat_font_size');
+        window.ChatRoomTools?.restoreChatFontSize?.();
-        if (saved) {
-            applyFontSize(saved);
-        }
 
         const storedBlockedSystemSenders = loadBlockedSystemSenders();
         const mutedFromLocal = localStorage.getItem(CHAT_SOUND_MUTED_STORAGE_KEY) === '1';
@@ -3290,55 +3453,7 @@
         }
     }
 
-    /**
-     * 打开聊天图片大图预览层。
-     */
-    function openChatImageLightbox(imageUrl, imageName = '聊天图片') {
-        const lightbox = document.getElementById('chat-image-lightbox');
-        const imageEl = document.getElementById('chat-image-lightbox-img');
-        const nameEl = document.getElementById('chat-image-lightbox-name');
-
-        if (!lightbox || !imageEl || !imageUrl) {
-            return;
-        }
-
-        imageEl.src = imageUrl;
-        imageEl.alt = imageName;
-
-        if (nameEl) {
-            nameEl.textContent = imageName;
-        }
-
-        lightbox.style.display = 'block';
-        document.body.style.overflow = 'hidden';
-    }
-
-    /**
-     * 关闭聊天图片大图预览层。
-     */
-    function closeChatImageLightbox(event = null) {
-        // 如果是点击事件，且点击的目标不是背景或关闭按钮（比如点击了图片本身且没有阻止冒泡），则不关闭
-        // 已经在 HTML 中对 img 做了 stopPropagation，此处 event.target !== event.currentTarget 仍是安全的
-        if (event && event.target !== event.currentTarget) {
-            return;
-        }
-
-        const lightbox = document.getElementById('chat-image-lightbox');
-        if (!lightbox) return;
-
-        lightbox.style.display = 'none';
-        
-        const imageEl = document.getElementById('chat-image-lightbox-img');
-        if (imageEl) {
-            imageEl.src = '';
-        }
-        
-        document.body.style.overflow = '';
-    }
-
     window.handleChatImageSelected = handleChatImageSelected;
-    window.openChatImageLightbox = openChatImageLightbox;
-    window.closeChatImageLightbox = closeChatImageLightbox;
     syncChatComposerAfterResume();
 
     if (_contentInput) {
@@ -3620,6 +3735,7 @@
         // 清理包厢窗口
         const say2 = document.getElementById('chat-messages-container2');
         if (say2) say2.innerHTML = '';
+        lastAutosaveNode = null;
 
         // 将当前最大消息 ID 保存至本地，刷新时只显示大于此 ID 的历史记录
         localStorage.setItem(`local_clear_msg_id_${window.chatContext.roomId}`, _maxMsgId);
@@ -3776,8 +3892,10 @@
                     detailDiv.innerHTML =
                         `<span style="color: green;">${escapeHtml(levelInfo + gainInfo)}</span><span class="msg-time">(${timeStr})</span>`;
                     // 手动存点和自动存点共用同一条界面占位，避免包厢窗口堆积旧存点通知。
-                    container2.querySelectorAll('[data-autosave="1"]').forEach(el => el.remove());
+                    lastAutosaveNode?.remove();
+                    lastAutosaveNode = detailDiv;
                     container2.appendChild(detailDiv);
+                    pruneMessageContainer(container2, PRIVATE_MESSAGE_NODE_LIMIT);
                     if (autoScroll) container2.scrollTop = container2.scrollHeight;
                 } else {
                     return;