only set focus to the grid window in wxGrid::HideCellEditControl() if it hadn't been switched to another window of our application

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34800 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/grid.cpp

@@ -7863,7 +7863,13 @@ void wxGrid::HideCellEditControl()
         editor->Show( false );
         editor->DecRef();
         attr->DecRef();
-        m_gridWin->SetFocus();
+
+        // if the focus moved completely outside this application, set it to
+        // ourselves so that it's not "lost" when the user switches back to
+        // this app
+        if ( !FindFocus() )
+            m_gridWin->SetFocus();
+
         // refresh whole row to the right
         wxRect rect( CellToRect(row, col) );
         CalcScrolledPosition(rect.x, rect.y, &rect.x, &rect.y );