tdf#130857 qt weld: Implement QtInstanceWidget::has_child_focus

Change-Id: I97ac73943969ecb8f1f189adc1cf4b5c4b052fd1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171558
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

1 files changed, 14 insertions, 1 deletions

diff --git a/vcl/qt5/QtInstanceWidget.cxx b/vcl/qt5/QtInstanceWidget.cxx
index bdeb1bf83f3a..f5f359b536c3 100644
--- a/vcl/qt5/QtInstanceWidget.cxx
+++ b/vcl/qt5/QtInstanceWidget.cxx
@@ -65,7 +65,20 @@ bool QtInstanceWidget::has_focus() const
 
 bool QtInstanceWidget::is_active() const { return has_focus(); }
 
-bool QtInstanceWidget::has_child_focus() const { return true; }
+bool QtInstanceWidget::has_child_focus() const
+{
+    QWidget* pFocusWidget = QApplication::focusWidget();
+    if (!pFocusWidget)
+        return false;
+
+    QWidget* pParent = pFocusWidget->parentWidget();
+    while (pParent)
+    {
+        if (pParent == m_pWidget)
+            return true;
+    }
+    return false;
+}
 
 void QtInstanceWidget::show() {}