// https://w3c.github.io/uievents/#uievent
[Exposed=Window]
interface UIEvent : Event {
    constructor(DOMString type, optional UIEventInit eventInitDict = {});
    readonly attribute WindowProxy? view;
    readonly attribute long detail;

    // Obsolete
    [ImplementedAs=init_ui_event] undefined initUIEvent(DOMString typeArg, optional boolean bubblesArg = false, optional boolean cancelableArg = false, optional WindowProxy? viewArg = null, optional long detailArg = 0);
    readonly attribute unsigned long which;
};

// https://w3c.github.io/uievents/#idl-uieventinit
dictionary UIEventInit : EventInit {
    WindowProxy? view = null;
    long detail = 0;
};
