Introduce wait_for_top_focus_window to fix UITest_calc_tests9

...which I had seen hang at least once, and after a manual `kill -9` of the hung
soffice.bin process (still yielding in UI loop from within executing a dialog),
it failed with

> ======================================================================
> ERROR: test_tdf57841 (tdf57841.Tdf57841)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "sc/qa/uitest/calc_tests9/tdf57841.py", line 27, in test_tdf57841
>     self.assertEqual('true', get_state_as_dict(xDialog.getChild("tab"))['Selected'])
> uno.com.sun.star.uno.RuntimeException: Could not find child with id: tab vcl/source/uitest/uiobject.cxx:467

(The subtle difference in naming is that wait_for_top_focus_window waits
indefinitely, while its sister wait_until_* functions (like
wait_until_child_is_available) can time out.  There is no good reason here to
allow for timing out.)

Change-Id: I3e4dc68871f42d64160d8e411fe9a661bbaec192
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/117739
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/uitest/uitest/test.py b/uitest/uitest/test.py
index 723878a34e3c..29af1e0899c2 100644
--- a/uitest/uitest/test.py
+++ b/uitest/uitest/test.py
@@ -49,6 +49,13 @@ class UITest(object):
             if component is not None:
                 return component
 
+    def wait_for_top_focus_window(self, id):
+        while True:
+            win = self._xUITest.getTopFocusWindow()
+            if get_state_as_dict(win)['ID'] == id:
+                return win
+            time.sleep(DEFAULT_SLEEP)
+
     def wait_until_child_is_available(self, childName):
         time_ = 0
         xChild = None