修复聊天室滚屏开关失效

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

@@ -75,10 +75,46 @@ export function localClearScreen(roomId = window.chatContext?.roomId, maxMessage
 
     if (publicPane) {
         publicPane.appendChild(notice);
-        publicPane.scrollTop = publicPane.scrollHeight;
+        scrollChatToBottom(publicPane, isAutoScrollEnabled);
     }
 }
 
+/**
+ * 读取当前是否允许聊天窗口自动滚屏。
+ *
+ * @returns {boolean}
+ */
+export function isAutoScrollEnabled() {
+    const state = window.chatState;
+
+    if (state && typeof state.autoScroll !== "undefined") {
+        return Boolean(state.autoScroll);
+    }
+
+    const checkbox = document.getElementById("auto_scroll");
+
+    return checkbox ? Boolean(checkbox.checked) : true;
+}
+
+/**
+ * 写入自动滚屏状态，并同步页面复选框和状态文字。
+ *
+ * @param {boolean} enabled 是否开启自动滚屏
+ * @returns {boolean}
+ */
+export function setAutoScrollEnabled(enabled) {
+    const nextEnabled = Boolean(enabled);
+    const state = window.chatState;
+
+    if (state) {
+        state.autoScroll = nextEnabled;
+    }
+
+    syncAutoScrollControls(nextEnabled);
+
+    return nextEnabled;
+}
+
 /**
  * 同步自动滚屏复选框与状态文字。
  *
@@ -111,6 +147,8 @@ export function toggleAutoScroll(getCurrent, setCurrent) {
 
     if (typeof setCurrent === "function") {
         setCurrent(nextEnabled);
+    } else {
+        setAutoScrollEnabled(nextEnabled);
     }
 
     syncAutoScrollControls(nextEnabled);