ladybird/Libraries/LibWeb/HTML/WindowOrWorkerGlobalScope.idl

// https://html.spec.whatwg.org/multipage/webappapis.html#timerhandler
typedef (DOMString or Function) TimerHandler;

// https://html.spec.whatwg.org/multipage/webappapis.html#windoworworkerglobalscope
interface mixin WindowOrWorkerGlobalScope {
    [Replaceable] readonly attribute USVString origin;
    readonly attribute boolean isSecureContext;
    readonly attribute boolean crossOriginIsolated;

    // https://html.spec.whatwg.org/multipage/webappapis.html#dom-reporterror
    undefined reportError(any e);

    // timers
    long setTimeout(TimerHandler handler, optional long timeout = 0, any... arguments);
    undefined clearTimeout(optional long id = 0);
    long setInterval(TimerHandler handler, optional long timeout = 0, any... arguments);
    undefined clearInterval(optional long id = 0);

    // ImageBitmap
    Promise<ImageBitmap> createImageBitmap(ImageBitmapSource image, optional ImageBitmapOptions options = {});
    Promise<ImageBitmap> createImageBitmap(ImageBitmapSource image, long sx, long sy, long sw, long sh, optional ImageBitmapOptions options = {});

    // https://fetch.spec.whatwg.org/#fetch-method
    [NewObject] Promise<Response> fetch(RequestInfo input, optional RequestInit init = {});

    // https://w3c.github.io/hr-time/#the-performance-attribute
    [Replaceable] readonly attribute Performance performance;

    // https://w3c.github.io/IndexedDB/#factory-interface
    [SameObject] readonly attribute IDBFactory indexedDB;

    // https://w3c.github.io/webcrypto/#crypto-interface
    [SameObject] readonly attribute Crypto crypto;

    // https://w3c.github.io/trusted-types/dist/spec/#extensions-to-the-windoworworkerglobalscope-interface
    readonly attribute TrustedTypePolicyFactory trustedTypes;
};