NVDAObjects.UIA: introduce base implementation of UIA item status pro…

…perty event. Re nvaccess#13973.

Announce item status UIA property whenever it changes provided that there is no pending event of the same coming from the same element. Note that both the element name and item status are announced.

source/NVDAObjects/UIA/__init__.py

@@ -27,6 +27,7 @@
 import config
 import speech
 import api
+import eventHandler
 import textInfos
 from logHandler import log
 from UIAHandler.types import (
@@ -2035,6 +2036,20 @@ def event_UIA_notification(self, notificationKind=None, notificationProcessing=U
 				speech.cancelSpeech()
 			ui.message(displayString)
 
+	def event_UIA_itemStatus(self):
+		"""
+		Base implementation of UIA item status property event.
+		By default NVDA will announce element name and item status if any.
+		"""
+		itemStatus = self.UIAElement.currentItemStatus
+		# Filter duplicate events.
+		if (
+			eventHandler.isPendingEvents(eventName="UIA_itemStatus", obj=self)
+		):
+			return
+		ui.message(f"{self.name} {itemStatus}")
+
+
 class TreeviewItem(UIA):
 
 	def _get_value(self):