Some echo tests added.

internal/atspi/adapter_event_callback_native.go

@@ -433,6 +433,17 @@ func cthulhuAtspiEventCallback(event *C.AtspiEvent, userData unsafe.Pointer) {
 		adapter.forgetWindowDocuments(originID)
 	}
 	invalidated := adapter.applyTreeInvalidation(eventType, event)
+	if eventType == DefunctStateEvent && C.cthulhu_event_detail1(event) != 0 &&
+		adapter.applicationProcesses[originID.BusName] == "pidgin" {
+		// Read-only transcripts need not own native focus. Forward their
+		// retirement before the ordinary dead-object early return, without
+		// querying a destroyed accessible or broadening focus ownership.
+		retired := NewEvent(eventType, Snapshot{BusName: originID.BusName, Path: originID.Path,
+			ApplicationProcess: "pidgin", Defunct: true})
+		retired.Detail1 = 1
+		adapter.enqueueSecureEvent(retired, secureEpoch)
+		return
+	}
 	if eventType == DefunctStateEvent && C.cthulhu_event_detail1(event) != 0 && adapter.webNotificationRoots[originID] {
 		delete(adapter.webNotificationRoots, originID)
 		// Retire a known toast before the normal dead-object early return.
@@ -446,6 +457,17 @@ func cthulhuAtspiEventCallback(event *C.AtspiEvent, userData unsafe.Pointer) {
 	// notification script needs their semantics before that early return,
 	// including when the provider is outside foreground ownership.
 	webNotification := adapter.webNotification(event)
+	if message := adapter.pidginMessage(event); message != nil {
+		// A transcript insertion is a passive announcement. Keep it out of
+		// native focus capture, selected-descendant resolution and review.
+		chatEvent := NewEvent(TextInsertedEvent, Snapshot{BusName: message.Provider,
+			Path: message.Conversation, Role: "text", ApplicationProcess: "pidgin"})
+		chatEvent.ChatMessage = message
+		chatEvent.Window = NewObjectID(message.Provider, message.Window)
+		chatEvent.Foreground = adapter.Foreground()
+		adapter.enqueueSecureEvent(chatEvent, secureEpoch)
+		return
+	}
 	if invalidated && webNotification == nil && eventType != ChildrenAddedEvent && (eventType != DefunctStateEvent || !adapter.nativeFocusIs(originID)) {
 		return
 	}