tdf#93825: Missing accessibility events when selecting/deselecting cells

Change-Id: I407f585354e78fb47a76561455ac67bb567c2771

vcl/unx/gtk/a11y/atklistener.cxx

@@ -563,6 +563,9 @@ void AtkListener::notifyEvent( const accessibility::AccessibleEventObject& aEven
             break;
 
         case accessibility::AccessibleEventId::SELECTION_CHANGED:
+        case accessibility::AccessibleEventId::SELECTION_CHANGED_ADD:
+        case accessibility::AccessibleEventId::SELECTION_CHANGED_REMOVE:
+        case accessibility::AccessibleEventId::SELECTION_CHANGED_WITHIN:
             g_signal_emit_by_name( G_OBJECT( atk_obj ), "selection_changed");
             break;
 
@@ -589,10 +592,6 @@ void AtkListener::notifyEvent( const accessibility::AccessibleEventObject& aEven
             break;
         }
 
-        case accessibility::AccessibleEventId::SELECTION_CHANGED_REMOVE:
-            /* unknown what to do with this */
-            break;
-
         default:
             SAL_WARN("vcl.gtk", "Unknown event notification: " << aEvent.EventId);
             break;