[orca] Filter out mouse-abs event spam

[Joanmarie Diggs <joanied src gnome org>]

commit 4f37bef3ea857e6c0826dfb65fededa2d5fe7398
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Nov 20 18:05:04 2019 -0500

    Filter out mouse-abs event spam

 src/orca/mouse_review.py | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/src/orca/mouse_review.py b/src/orca/mouse_review.py
index a9a7140b8..97084eccc 100644
--- a/src/orca/mouse_review.py
+++ b/src/orca/mouse_review.py
@@ -191,6 +191,11 @@ class _ItemContext:
             debug.println(debug.LEVEL_INFO, msg, True)
             return False
 
+        if self._x == prior._x and self._y == prior._y:
+            msg = "MOUSE REVIEW: Treating as duplicate: mouse didn't move"
+            debug.println(debug.LEVEL_INFO, msg, True)
+            return True
+
         interval = self._time - prior._time
         if interval > 0.5:
             msg = "MOUSE REVIEW: Not a duplicate: was %.2fs ago" % interval