[accerciser] Show event sender

[Samuel Thibault <sthibaul src gnome org>]

commit f3e5fd1905712a37f6937523f96190e22870a0ca
Author: Samuel Thibault <samuel thibault ens-lyon org>
Date:   Thu Jul 25 14:15:34 2019 +0200

    Show event sender

 plugins/event_monitor.py | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/plugins/event_monitor.py b/plugins/event_monitor.py
index 3865db0..6c2c005 100644
--- a/plugins/event_monitor.py
+++ b/plugins/event_monitor.py
@@ -329,6 +329,10 @@ class EventMonitor(ViewportPlugin):
     self._writeText('\n\tapplication: ')
     hyperlink = self._createHyperlink(event.host_application)
     self._writeText(str(event.host_application), hyperlink)
+    if hasattr(event, "sender"):
+        self._writeText('\n\tsender: ')
+        hyperlink = self._createHyperlink(event.sender)
+        self._writeText(str(event.sender), hyperlink)
     self._writeText('\n')
 
   def _writeText(self, text, *tags):