#import // https://w3c.github.io/uievents/#uievent [Exposed=Window] interface UIEvent : Event { constructor(DOMString type, optional UIEventInit eventInitDict = {}); readonly attribute Window? view; readonly attribute long detail; // NOTE: This is "deprecated, but supported for backwards-compatibility with widely-deployed implementations." [ImplementedAs=init_ui_event] undefined initUIEvent(DOMString typeArg, optional boolean bubblesArg = false, optional boolean cancelableArg = false, optional Window? viewArg = null, optional long detailArg = 0); readonly attribute unsigned long which; }; dictionary UIEventInit : EventInit { Window? view = null; long detail = 0; };