[orca] Filter out more browser chrome event spam

[Joanmarie Diggs <joanied src gnome org>]

commit f19f95738e17d42b21b737d616b90b647f6c6fdb
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri Oct 16 21:52:54 2015 -0400

    Filter out more browser chrome event spam

 src/orca/scripts/web/script.py           |   17 +++++++++++------
 src/orca/scripts/web/script_utilities.py |   19 +++++++++++--------
 2 files changed, 22 insertions(+), 14 deletions(-)
---
diff --git a/src/orca/scripts/web/script.py b/src/orca/scripts/web/script.py
index 8e7e915..4bc73ac 100644
--- a/src/orca/scripts/web/script.py
+++ b/src/orca/scripts/web/script.py
@@ -1245,6 +1245,11 @@ class Script(default.Script):
     def onChildrenChanged(self, event):
         """Callback for object:children-changed accessibility events."""
 
+        if self.utilities.eventIsChromeNoise(event):
+            msg = "WEB: Ignoring event believed to be chrome noise"
+            debug.println(debug.LEVEL_INFO, msg)
+            return True
+
         document = self.utilities.getDocumentForObject(event.source)
         if document:
             msg = "WEB: Clearing structural navigation cache for %s" % document
@@ -1430,8 +1435,8 @@ class Script(default.Script):
     def onNameChanged(self, event):
         """Callback for object:property-change:accessible-name events."""
 
-        if self.utilities.eventIsStatusBarNoise(event):
-            msg = "WEB: Ignoring event believed to be status bar noise"
+        if self.utilities.eventIsChromeNoise(event):
+            msg = "WEB: Ignoring event believed to be chrome noise"
             debug.println(debug.LEVEL_INFO, msg)
             return True
 
@@ -1508,8 +1513,8 @@ class Script(default.Script):
             debug.println(debug.LEVEL_INFO, msg)
             return True
 
-        if self.utilities.eventIsStatusBarNoise(event):
-            msg = "WEB: Ignoring event believed to be status bar noise"
+        if self.utilities.eventIsChromeNoise(event):
+            msg = "WEB: Ignoring event believed to be chrome noise"
             debug.println(debug.LEVEL_INFO, msg)
             return True
 
@@ -1559,8 +1564,8 @@ class Script(default.Script):
             debug.println(debug.LEVEL_INFO, msg)
             return True
 
-        if self.utilities.eventIsStatusBarNoise(event):
-            msg = "WEB: Ignoring event believed to be status bar noise"
+        if self.utilities.eventIsChromeNoise(event):
+            msg = "WEB: Ignoring event believed to be chrome noise"
             debug.println(debug.LEVEL_INFO, msg)
             return True
 
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index 9e20335..c53955e 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -2240,19 +2240,22 @@ class Utilities(script_utilities.Utilities):
 
         return False
 
-    def eventIsStatusBarNoise(self, event):
+    def eventIsChromeNoise(self, event):
         if self.inDocumentContent(event.source):
             return False
 
+        try:
+            role = event.source.getRole()
+        except:
+            msg = "WEB: Exception getting role for %s" % event.source
+            debug.println(debug.LEVEL_INFO, msg)
+            return False
+
         eType = event.type
         if eType.startswith("object:text-") or eType.endswith("accessible-name"):
-            try:
-                role = event.source.getRole()
-            except:
-                msg = "WEB: Exception getting role for %s" % event.source
-                debug.println(debug.LEVEL_INFO, msg)
-            else:
-                return role == pyatspi.ROLE_STATUS_BAR
+            return role in [pyatspi.ROLE_STATUS_BAR, pyatspi.ROLE_LABEL]
+        if eType.startswith("object:children-changed"):
+            return True
 
         return False