/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ // https://html.spec.whatwg.org/multipage/#customelementregistry [Exposed=Window, Pref="dom_customelements_enabled"] interface CustomElementRegistry { [Throws, CEReactions] undefined define( DOMString name, CustomElementConstructor constructor_, optional ElementDefinitionOptions options = {} ); any get(DOMString name); DOMString? getName(CustomElementConstructor constructor); Promise whenDefined(DOMString name); [CEReactions] undefined upgrade(Node root); }; callback CustomElementConstructor = HTMLElement(); dictionary ElementDefinitionOptions { DOMString extends; };