From ff7cfb45df9f7228b8cda0f22645ae891fc93a43 Mon Sep 17 00:00:00 2001
From: cmliu <cmliu@users.noreply.github.com>
Date: Fri, 31 Jul 2026 04:32:45 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E7=AB=8B=E5=8D=B3=E5=B1=95=E5=BC=80?=
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---
 frontend/src/file-tree.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/frontend/src/file-tree.ts b/frontend/src/file-tree.ts
index 5b8fb8f..d1da854 100644
--- a/frontend/src/file-tree.ts
+++ b/frontend/src/file-tree.ts
@@ -677,6 +677,16 @@ export class FileTree {
       if (token !== this.setCwdToken) return;
     }
 
+    // Expand the target directory itself (not just its ancestors) so its
+    // children are immediately rendered and aria-expanded is "true".
+    // This covers initial-connection setCwd where activateNode is never
+    // called — ancestors were expanded during the loop above; the target
+    // needs this extra step.
+    if (current.state === 'collapsed' && current.type === 'directory' && !current.unavailable) {
+      await this.expandNode(current, true);
+      if (token !== this.setCwdToken) return;
+    }
+
     this.highlightNode(current);
     this.focusedNode = current;
     this.updateTabindex();