From 19c0e43e5cb2d9fb821f344ffd06bbaccaa582f4 Mon Sep 17 00:00:00 2001
From: Uwe Rathmann <Uwe.Rathmann@tigertal.de>
Date: Fri, 19 Jan 2018 10:08:59 +0100
Subject: [PATCH] find a default focus item, when a focusScope/tabFence control
 ( usually a popup ) gets the focus - to be on the internal tab chain.

---
 src/controls/QskControl.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/controls/QskControl.cpp b/src/controls/QskControl.cpp
index ab2ae90c..1c65a02c 100644
--- a/src/controls/QskControl.cpp
+++ b/src/controls/QskControl.cpp
@@ -1049,6 +1049,23 @@ bool QskControl::event( QEvent* event )
 
             break;
         }
+        case QEvent::FocusIn:
+        {
+            if ( isFocusScope() && isTabFence() && ( scopedFocusItem() == nullptr ) )
+            {
+                /*
+                    When receiving the focus we need to have a focused
+                    item, so that the tab focus chain has a starting point.
+                 */
+
+                if ( auto focusItem = nextItemInFocusChain( true ) )
+                {
+                    if ( qskIsAncestorOf( this, focusItem ) )
+                        focusItem->setFocus( true );
+                }
+            }
+            break;
+        }   
     }
 
     switch( eventType )