From 99f852dc83ef3dc94267f022c838cdd7a1eedad8 Mon Sep 17 00:00:00 2001
From: Uwe Rathmann <Uwe.Rathmann@tigertal.de>
Date: Tue, 23 Feb 2021 12:04:55 +0100
Subject: [PATCH] block focusInEvent calls, when the item tree is
 deconstructing

---
 src/controls/QskQuickItem.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/controls/QskQuickItem.cpp b/src/controls/QskQuickItem.cpp
index da84cab8..9514af72 100644
--- a/src/controls/QskQuickItem.cpp
+++ b/src/controls/QskQuickItem.cpp
@@ -653,6 +653,21 @@ bool QskQuickItem::event( QEvent* event )
 
             return true;
         }
+        case QEvent::FocusIn:
+        {
+            if ( window() == nullptr )
+            {
+                /*
+                    During deconstruction of the window we run into
+                    focus changes when the items in the tree get destroyed.
+                    Calling focusInEvent() in this state does not make sense
+                    and often results in crashes in overloaded event handlers.
+                 */
+                return true;
+            }
+
+            break;
+        }
     }
 
     return Inherited::event( event );