1 files changed, 10 insertions, 0 deletions
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 353a80d1c5..04290a4ce1 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -6436,8 +6436,18 @@ void QWidget::setFocusProxy(QWidget * w)
         }
     }
 
+    QWidget *oldDeepestFocusProxy = d_func()->deepestFocusProxy();
+    if (!oldDeepestFocusProxy)
+        oldDeepestFocusProxy = this;
+    const bool changingAppFocusWidget = (QApplicationPrivate::focus_widget == oldDeepestFocusProxy);
+
     d->createExtra();
     d->extra->focus_proxy = w;
+
+    if (changingAppFocusWidget) {
+        QWidget *newDeepestFocusProxy = d_func()->deepestFocusProxy();
+        QApplicationPrivate::focus_widget = newDeepestFocusProxy ? newDeepestFocusProxy : this;
+    }
 }