From c77592d4792114558ca76828000796a050cec9af Mon Sep 17 00:00:00 2001
From: Misaki <misaki_39@outlook.com>
Date: Sat, 28 Mar 2026 17:38:07 +0900
Subject: [PATCH] fix(dock): fix build break and clean up logging/event
 patterns

---
 src/Editor/Ghost.Editor/App.xaml.cs                       | 1 -
 src/Editor/Ghost.Editor/View/Controls/DockLayout.cs       | 8 +++++++-
 .../Ghost.Editor/View/Windows/EngineEditorWindow.xaml.cs  | 1 +
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/Editor/Ghost.Editor/App.xaml.cs b/src/Editor/Ghost.Editor/App.xaml.cs
index be02cd9..083ec71 100644
--- a/src/Editor/Ghost.Editor/App.xaml.cs
+++ b/src/Editor/Ghost.Editor/App.xaml.cs
@@ -72,7 +72,6 @@ public partial class App : Application
                 app._secondaryWindows.Remove(newWindow);
             }
             newWindow.Close();
-            Logger.LogError(ex);
             throw;
         }
     }
diff --git a/src/Editor/Ghost.Editor/View/Controls/DockLayout.cs b/src/Editor/Ghost.Editor/View/Controls/DockLayout.cs
index 8375acf..f22e67e 100644
--- a/src/Editor/Ghost.Editor/View/Controls/DockLayout.cs
+++ b/src/Editor/Ghost.Editor/View/Controls/DockLayout.cs
@@ -442,8 +442,14 @@ public sealed partial class DockLayout : Control
 
                     var result = TabTearOffService.TryTearOffTab(sourceNode.Items, args.Item, (tab) =>
                     {
+                        var handler = TabTornOff;
+                        if (handler == null)
+                        {
+                            throw new InvalidOperationException("No tear-off handler attached.");
+                        }
+
                         // Raise event to let the host handle window creation
-                        TabTornOff.Invoke(this, new TabTornOffEventArgs(tab, sourceNode));
+                        handler.Invoke(this, new TabTornOffEventArgs(tab, sourceNode));
                     }, sourceNode);
 
                     if (result.IsSuccess)
diff --git a/src/Editor/Ghost.Editor/View/Windows/EngineEditorWindow.xaml.cs b/src/Editor/Ghost.Editor/View/Windows/EngineEditorWindow.xaml.cs
index d613507..c79b7f3 100644
--- a/src/Editor/Ghost.Editor/View/Windows/EngineEditorWindow.xaml.cs
+++ b/src/Editor/Ghost.Editor/View/Windows/EngineEditorWindow.xaml.cs
@@ -5,6 +5,7 @@ using Ghost.Editor.Core.Services;
 using Ghost.Editor.Core.Controls.Internal.Docking;
 using Ghost.Editor.View.Controls;
 using Ghost.Editor.ViewModels.Windows;
+using Microsoft.UI.Xaml;
 using Windows.ApplicationModel;
 using WinUIEx;