fix: use DOM event listener with stopPropagation to prevent multiple tab closures

src/App.js

@@ -84,13 +84,6 @@ function App() {
         e.preventDefault();
         setShowCommandPalette(true);
       }
-      // Ctrl+W: 关闭当前标签页
-      if ((e.ctrlKey || e.metaKey) && e.key === 'w') {
-        e.preventDefault();
-        if (activeTabId) {
-          closeTab(activeTabId);
-        }
-      }
       // Escape: 关闭弹窗
       if (e.key === 'Escape') {
         setShowCommandPalette(false);
@@ -101,7 +94,7 @@ function App() {
 
     window.addEventListener('keydown', handleKeyDown);
     return () => window.removeEventListener('keydown', handleKeyDown);
-  }, [activeTabId, closeTab]);
+  }, []);
 
   // 连接主机
   const connectHost = useCallback((host) => {

src/components/Terminal.js

@@ -22,6 +22,7 @@ function Terminal({ tabId, hostId, isActive, onConnectionChange, onShowCommandPa
   const contextMenuHandlerRef = useRef(null);
   const resizeTimeoutRef = useRef(null);
   const webglAddonRef = useRef(null);
+  const keydownHandlerRef = useRef(null);
   
   const onConnectionChangeRef = useRef(onConnectionChange);
   onConnectionChangeRef.current = onConnectionChange;
@@ -234,31 +235,36 @@ function Terminal({ tabId, hostId, isActive, onConnectionChange, onShowCommandPa
         }
       });
 
-      // 自定义按键处理 - 拦截 Ctrl+W 和 Ctrl+K（仅当前活动标签页响应）
-      term.attachCustomKeyEventHandler((e) => {
+      // 在容器上添加键盘事件监听器（捕获阶段），确保能拦截并阻止事件冒泡
+      keydownHandlerRef.current = (e) => {
         // 只有活动标签页才响应快捷键
         if (!isActiveRef.current) {
-          return true;
+          return;
         }
         
         // Ctrl+W: 关闭当前标签页
         if ((e.ctrlKey || e.metaKey) && e.key === 'w') {
           e.preventDefault();
+          e.stopPropagation();
+          e.stopImmediatePropagation();
           if (onCloseTabRef.current) {
             onCloseTabRef.current();
           }
-          return false; // 阻止 xterm 处理
+          return;
         }
         // Ctrl+K: 打开命令面板
         if ((e.ctrlKey || e.metaKey) && e.key === 'k') {
           e.preventDefault();
+          e.stopPropagation();
+          e.stopImmediatePropagation();
           if (onShowCommandPaletteRef.current) {
             onShowCommandPaletteRef.current();
           }
-          return false;
+          return;
         }
-        return true; // 允许 xterm 处理其他按键
-      });
+      };
+      // 使用捕获阶段确保在 xterm 处理之前拦截
+      container.addEventListener('keydown', keydownHandlerRef.current, true);
 
       // 选中自动复制到剪贴板
       term.onSelectionChange(() => {
@@ -344,6 +350,12 @@ function Terminal({ tabId, hostId, isActive, onConnectionChange, onShowCommandPa
         contextMenuHandlerRef.current = null;
       }
       
+      // 清理键盘事件监听器
+      if (keydownHandlerRef.current && terminalRef.current) {
+        terminalRef.current.removeEventListener('keydown', keydownHandlerRef.current, true);
+        keydownHandlerRef.current = null;
+      }
+      
       if (cleanupListenersRef.current) {
         cleanupListenersRef.current();
         cleanupListenersRef.current = null;