修复用户退出提示bug

web/main.js

@@ -84,23 +84,17 @@ function createUserItem(user, isMe) {
 function handleClientList(idx, list, selfId) {
   const rd = roomsData[idx];
   if (!rd) return;
-    // 记录旧用户ID集合
-    const oldUserIds = new Set((rd.userList || []).map(u => u.clientId));
-    // 新用户ID集合
-    const newUserIds = new Set(list.map(u => u.clientId));
-    // 检查退出用户（旧有，新没有）
-    if (rd.isInitialized) {
-      for (const oldId of oldUserIds) {
-        if (!newUserIds.has(oldId)) {
-          const user = rd.userMap[oldId];
-          const name = user ? (user.userName || user.username || user.name || 'Anonymous') : 'Anonymous';
-          const msg = `${name}已退出`;
-          rd.messages.push({ type: 'system', text: msg });
-          if (activeRoomIndex === idx) addSystemMsg(msg, true);
-        }
-      }
-    }  
- // 更新在线用户列表和映射
+  // 记录旧用户ID集合
+  const oldUserIds = new Set((rd.userList || []).map(u => u.clientId));
+  // 新用户ID集合
+  const newUserIds = new Set(list.map(u => u.clientId));
+  // 检查退出用户（旧有，新没有），并调用 handleClientLeft
+  for (const oldId of oldUserIds) {
+    if (!newUserIds.has(oldId)) {
+      handleClientLeft(idx, oldId);
+    }
+  }
+  // 更新在线用户列表和映射
   rd.userList = list;
   rd.userMap = {};
   list.forEach(u => { rd.userMap[u.clientId] = u; });
@@ -117,7 +111,6 @@ function handleClientList(idx, list, selfId) {
     // 基准用户集合
     rd.knownUserIds = new Set(list.map(u => u.clientId));
   }
-
 }
 
 // 调整 handleClientSecured: 立即更新UI，仅在初始化完成后才处理加入提示
@@ -161,10 +154,13 @@ function handleClientLeft(idx, clientId) {
   const rd = roomsData[idx];
   if (!rd) return;
   const user = rd.userMap[clientId];
-
+  // 退出提示逻辑：不再依赖 isInitialized，任何时候都提示
+  const name = user ? (user.userName || user.username || user.name || 'Anonymous') : 'Anonymous';
+  const msg = `${name}已退出`;
+  rd.messages.push({ type: 'system', text: msg });
+  if (activeRoomIndex === idx) addSystemMsg(msg, true);
   rd.userList = rd.userList.filter(u => u.clientId !== clientId);
   delete rd.userMap[clientId];
-  rd.messages.push({ type: 'system', text: exitMsg });
   if (activeRoomIndex === idx) {
     renderUserList();
   }