Add editor shortcuts usability when toolstrip or main menu controls are focused

Source/Editor/GUI/MainMenu.cs

@@ -304,6 +304,17 @@ namespace FlaxEditor.GUI
             return true;
         }
 
+        /// <inheritdoc />
+        public override bool OnKeyDown(KeyboardKeys key)
+        {
+            if (base.OnKeyDown(key))
+                return true;
+
+            // Fallback to the edit window for shortcuts
+            var editor = Editor.Instance;
+            return editor.Windows.EditWin.InputActions.Process(editor, this, key);
+        }
+
         /// <inheritdoc />
         protected override void PerformLayoutAfterChildren()
         {

Source/Editor/GUI/ToolStrip.cs

@@ -1,6 +1,7 @@
 // Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
 
 using System;
+using FlaxEditor.Windows;
 using FlaxEngine;
 using FlaxEngine.GUI;
 
@@ -181,5 +182,25 @@ namespace FlaxEditor.GUI
 
             PerformLayout();
         }
+
+        /// <inheritdoc />
+        public override bool OnKeyDown(KeyboardKeys key)
+        {
+            if (base.OnKeyDown(key))
+                return true;
+
+            // Fallback to the owning window for shortcuts
+            EditorWindow editorWindow = null;
+            ContainerControl c = Parent;
+            while (c != null && editorWindow == null)
+            {
+                editorWindow = c as EditorWindow;
+                c = c.Parent;
+            }
+            var editor = Editor.Instance;
+            if (editorWindow == null)
+                editorWindow = editor.Windows.EditWin; // Fallback to main editor window
+            return editorWindow.InputActions.Process(editor, this, key);
+        }
     }
 }

Source/Editor/Modules/ContentFindingModule.cs

@@ -166,6 +166,8 @@ namespace FlaxEditor.Modules
         public void ShowFinder(Control control)
         {
             var finder = _finder ?? (_finder = new ContentFinder());
+            if (control == null)
+                control = Editor.Instance.Windows.MainWindow.GUI;
             var position = (control.Size - new Float2(finder.Width, 300.0f)) * 0.5f;
             finder.Show(control, position);
         }