[orca] Web: Eliminate chattiness resulting from aria-labelledby during navigation

[Joanmarie Diggs <joanied src gnome org>]

commit 422d4dbd00c5415204291fb00ca54d2de8c9f9f1
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri Dec 4 14:03:37 2020 +0100

    Web: Eliminate chattiness resulting from aria-labelledby during navigation
    
    If one navigates from the label for an object into the labelled object
    we don't want to speak that label again.

 src/orca/scripts/web/speech_generator.py | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/orca/scripts/web/speech_generator.py b/src/orca/scripts/web/speech_generator.py
index cbf35e379..6db32653d 100644
--- a/src/orca/scripts/web/speech_generator.py
+++ b/src/orca/scripts/web/speech_generator.py
@@ -321,6 +321,9 @@ class SpeechGenerator(speech_generator.SpeechGenerator):
         if obj == priorObj:
             return []
 
+        if priorObj and priorObj in self._script.utilities.labelsForObject(obj):
+            return []
+
         if self._script.utilities.isContentEditableWithEmbeddedObjects(obj):
             lastKey, mods = self._script.utilities.lastKeyAndModifiers()
             if lastKey in ["Home", "End", "Up", "Down", "Left", "Right", "Page_Up", "Page_Down"]: