[orca] Don't speak rolename for status bar notifications

[Joanmarie Diggs <joanied src gnome org>]

commit 60febcfa499e80bb09baa0b6104346c2bb75eed4
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Sun Jul 12 17:10:01 2015 +0200

    Don't speak rolename for status bar notifications

 src/orca/script_utilities.py |   10 ++++++++++
 src/orca/speech_generator.py |    3 +++
 2 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index 16183aa..71b4e85 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -726,6 +726,16 @@ class Utilities:
             isStatic = not obj.getState().contains(pyatspi.STATE_FOCUSABLE)
         return isStatic
 
+    def isStatusBarNotification(self, obj):
+        if not (obj and obj.getRole() == pyatspi.ROLE_NOTIFICATION):
+            return False
+
+        isStatusBar = lambda x: x and x.getRole() == pyatspi.ROLE_STATUS_BAR
+        if pyatspi.findAncestor(obj, isStatusBar):
+            return True
+
+        return False
+
     def isLayoutOnly(self, obj):
         """Returns True if the given object is a container which has
         no presentable information (label, name, displayed text, etc.)."""
diff --git a/src/orca/speech_generator.py b/src/orca/speech_generator.py
index dbdbef2..a02b484 100644
--- a/src/orca/speech_generator.py
+++ b/src/orca/speech_generator.py
@@ -332,6 +332,9 @@ class SpeechGenerator(generator.Generator):
         if _settingsManager.getSetting('onlySpeakDisplayedText'):
             return []
 
+        if self._script.utilities.isStatusBarNotification(obj):
+            return []
+
         result = []
         acss = self.voice(SYSTEM)
         role = args.get('role', obj.getRole())