Announce "non selected" when focus does not follow selected in a listbox

src/orca/formatting.py

@@ -305,8 +305,8 @@ formatting = {
             },
         pyatspi.ROLE_LIST_ITEM: {
             'focused': 'expandableState',
-            'unfocused': '(labelOrName or (displayedText + allTextSelection)) + checkedStateIfCheckable + pause + expandableState + pause + positionInList + pause + listBoxItemWidgets',
-            'basicWhereAmI': 'label + roleName + pause + (name or displayedText) + checkedStateIfCheckable + pause + positionInList + pause + expandableState + (nodeLevel or nestingLevel) + pause'
+            'unfocused': '(labelOrName or (displayedText + allTextSelection)) + checkedStateIfCheckable + pause + unselectedStateIfSelectable + pause + expandableState + pause + positionInList + pause + listBoxItemWidgets',
+            'basicWhereAmI': 'label + roleName + pause + (name or displayedText) + checkedStateIfCheckable + pause + unselectedStateIfSelectable + pause + positionInList + pause + expandableState + (nodeLevel or nestingLevel) + pause'
             },
         pyatspi.ROLE_MATH: {
             'unfocused': 'math',

src/orca/object_properties.py

@@ -527,6 +527,10 @@ STATE_PRESSED = C_("togglebutton", "pressed")
 # Translators: This is a state which applies to a toggle button.
 STATE_NOT_PRESSED = C_("togglebutton", "not pressed")
 
+# Translators: This is a state which applies to an item or option
+# in a selectable list.
+STATE_UNSELECTED_LIST_ITEM = C_("listitem", "not selected")
+
 # Translators: This is a state which applies to a radio button.
 STATE_SELECTED_RADIO_BUTTON = C_("radiobutton", "selected")
 

src/orca/speech_generator.py

@@ -1058,6 +1058,28 @@ class SpeechGenerator(generator.Generator):
 
         return result
 
+    def _generateUnselectedStateIfSelectable(self, obj, **args):
+        if _settingsManager.getSetting('onlySpeakDisplayedText'):
+            return []
+
+        if args.get('inMouseReview'):
+            return []
+
+        if not obj:
+            return []
+
+        if not (obj.parent and 'Selection' in pyatspi.listInterfaces(obj.parent)):
+            return []
+
+        state = obj.getState()
+        if state.contains(pyatspi.STATE_SELECTED):
+            return []
+
+        result = [object_properties.STATE_UNSELECTED_LIST_ITEM]
+        result.extend(self.voice(STATE))
+
+        return result
+
     def _generateUnselectedCell(self, obj, **args):
         """Returns an array of strings (and possibly voice and audio
         specifications) if this is an icon within an layered pane or a