added wxWindow::HandleAsNavigationKey() helper for handling (not only) TAB key in custom controls

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@51741 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/datavgen.cpp

@@ -3395,16 +3395,8 @@ void wxDataViewMainWindow::DestroyTree()
 
 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
 {
-    if (event.GetKeyCode() == WXK_TAB)
-    {
-        wxNavigationKeyEvent nevent;
-        nevent.SetWindowChange( event.ControlDown() );
-        nevent.SetDirection( !event.ShiftDown() );
-        nevent.SetEventObject( GetParent()->GetParent() );
-        nevent.SetCurrentFocus( m_parent );
-        if (GetParent()->GetParent()->GetEventHandler()->ProcessEvent( nevent ))
-            return;
-    }
+    if ( HandleAsNavigationKey(event) )
+        return;
 
     // no item -> nothing to do
     if (!HasCurrentRow())