[orca] Web: Improve behavior when focused back/forward button is pressed

[Joanmarie Diggs <joanied src gnome org>]

commit 6afadbe78cba7609b7320d0007203380638f2bc1
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Mon Nov 8 13:15:44 2021 +0100

    Web: Improve behavior when focused back/forward button is pressed
    
    If the back/forward button is focused and pressed (as opposed to
    Alt+Left/Right being used) we should not do a page summary or update
    the focus away from that button.

 src/orca/scripts/web/script.py | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/src/orca/scripts/web/script.py b/src/orca/scripts/web/script.py
index 08d16e760..cebd30764 100644
--- a/src/orca/scripts/web/script.py
+++ b/src/orca/scripts/web/script.py
@@ -1492,6 +1492,15 @@ class Script(default.Script):
             return True
 
         self.utilities.clearCachedObjects()
+        if self.utilities.isDead(obj):
+            obj = None
+
+        if not self.utilities.isDead(orca_state.locusOfFocus) \
+           and not self.utilities.inDocumentContent(orca_state.locusOfFocus) \
+           and orca_state.locusOfFocus.getState().contains(pyatspi.STATE_FOCUSED):
+            msg = "WEB: Not presenting content, focus is outside of document"
+            debug.println(debug.LEVEL_INFO, msg, True)
+            return True
 
         if _settingsManager.getSetting('pageSummaryOnLoad') and shouldPresent:
             obj = obj or event.source