Make optative the use of signals request-clear-area/unset-clear-area - SL #4509

As these signals are used by the On screen keyboard,
and are not available for users of SoaS, use try/except to allow
the use without the signals.

Signed-off-by: Gonzalo Odiard <gonzalo@laptop.org>

1 files changed, 10 insertions, 2 deletions

diff --git a/widgets.py b/widgets.py
index bc05082..18aa08a 100644
--- a/widgets.py
+++ b/widgets.py
@@ -305,8 +305,16 @@ class DocumentView(Abi.Widget):
     def __init__(self):
         Abi.Widget.__init__(self)
         self.connect('size-allocate', self.__size_allocate_cb)
-        self.connect('request-clear-area', self.__request_clear_area_cb)
-        self.connect('unset-clear-area', self.__unset_clear_area_cb)
+        try:
+            self.connect('request-clear-area', self.__request_clear_area_cb)
+        except:
+            logging.error('EXCEPTION: request-clear-area signal not available')
+
+        try:
+            self.connect('unset-clear-area', self.__unset_clear_area_cb)
+        except:
+            logging.error('EXCEPTION: unset-clear-area signal not available')
+
         self.osk_changed = False
         self.dy = 0