WidgetDefinition: add "action" state for the PushButton

Change-Id: I0db9ec275cc95184ceb2cdbce8ae5343a10582c1
Reviewed-on: https://gerrit.libreoffice.org/71862Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>

vcl/source/gdi/WidgetDefinition.cxx

@@ -99,6 +99,12 @@ WidgetDefinitionPart::getStates(ControlType eType, ControlPart ePart, ControlSta
                 }
             }
             break;
+            case ControlType::Pushbutton:
+            {
+                auto const& rPushButtonValue = static_cast<PushButtonValue const&>(rValue);
+                if (rPushButtonValue.mbIsAction)
+                    sExtra = "action";
+            }
             default:
                 break;
         }