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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
* The origin of this IDL file is
* Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
* liability, trademark and document use rules apply.
enum ShadowRootMode {
enum SlotAssignmentMode { "manual", "named" };
interface ShadowRoot : DocumentFragment
// Shadow DOM v1
readonly attribute ShadowRootMode mode;
readonly attribute boolean delegatesFocus;
readonly attribute SlotAssignmentMode slotAssignment;
readonly attribute boolean clonable;
readonly attribute boolean serializable;
readonly attribute Element host;
attribute EventHandler onslotchange;
Element? getElementById(DOMString elementId);
[CEReactions, SetterThrows]
attribute [LegacyNullToEmptyString] DOMString innerHTML;
// When JS invokes importNode or createElement, the binding code needs to
// create a reflector, and so invoking those methods directly on the content
// document would cause the reflector to be created in the content scope,
// at which point it would be difficult to move into the UA Widget scope.
// As such, these methods allow UA widget code to simultaneously create nodes
// and associate them with the UA widget tree, so that the reflectors get
// created in the right scope.
[CEReactions, Throws, Func="IsChromeOrUAWidget"]
Node importNodeAndAppendChildAt(Node parentNode, Node node, optional boolean deep = false);
[CEReactions, Throws, Func="IsChromeOrUAWidget"]
Node createElementAndAppendChildAt(Node parentNode, DOMString localName);
// For triggering UA Widget scope in tests.
undefined setIsUAWidget();
boolean isUAWidget();
partial interface ShadowRoot {
undefined setHTMLUnsafe(DOMString html);
DOMString getHTML(optional GetHTMLOptions options = {});
ShadowRoot includes DocumentOrShadowRoot;