| /* 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 http://mozilla.org/MPL/2.0/. */ |
| |
| // https://html.spec.whatwg.org/#dom-window-customelements |
| [Func="CustomElementRegistry::IsCustomElementEnabled"] |
| interface CustomElementRegistry { |
| [CEReactions, Throws] |
| undefined define(DOMString name, Function functionConstructor, |
| optional ElementDefinitionOptions options); |
| [ChromeOnly, Throws] |
| undefined setElementCreationCallback(DOMString name, CustomElementCreationCallback callback); |
| any get(DOMString name); |
| [Throws] |
| Promise<undefined> whenDefined(DOMString name); |
| [CEReactions] undefined upgrade(Node root); |
| }; |
| |
| dictionary ElementDefinitionOptions { |
| DOMString extends; |
| }; |
| |
| callback CustomElementCreationCallback = undefined (DOMString name); |
