Source/WebCore/dom/Document.idl - WebKit - Git at Google

 /*
  * Copyright (C) 2006, 2007, 2011, 2015 Apple Inc. All rights reserved.
  * Copyright (C) 2006, 2007 Samuel Weinig <sam@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */

 typedef (
 #if defined(ENABLE_WEBGL) && ENABLE_WEBGL
     WebGLRenderingContext or
 #endif
 #if defined(ENABLE_WEBGL2) && ENABLE_WEBGL2
     WebGL2RenderingContext or
 #endif
 #if defined(ENABLE_WEBGPU) && ENABLE_WEBGPU
     WebGPURenderingContext or
 #endif
     ImageBitmapRenderingContext or
     CanvasRenderingContext2D) RenderingContext;

 [
     Constructor,
     ConstructorCallWith=Document,
     CustomToJSObject,
     DOMJIT,
     ExportMacro=WEBCORE_EXPORT,
     JSCustomHeader,
     JSCustomMarkFunction,
     JSGenerateToNativeObject,
 ] interface Document : Node {
     readonly attribute DOMImplementation implementation; // FIXME: Should be [SameObject].
     [ImplementedAs=urlForBindings] readonly attribute USVString URL;
     [ImplementedAs=urlForBindings] readonly attribute USVString documentURI;
     readonly attribute USVString origin;
     readonly attribute DOMString compatMode;
     [ImplementedAs=characterSetWithUTF8Fallback] readonly attribute DOMString characterSet;
     [ImplementedAs=characterSetWithUTF8Fallback] readonly attribute DOMString charset; // Historical alias of .characterSet,
     [ImplementedAs=characterSetWithUTF8Fallback] readonly attribute DOMString inputEncoding; // Historical alias of .characterSet.
     readonly attribute DOMString contentType;

     readonly attribute DocumentType? doctype;
     [DOMJIT=Getter] readonly attribute Element? documentElement;

     HTMLCollection getElementsByTagName(DOMString qualifiedName);
     HTMLCollection getElementsByTagNameNS(DOMString? namespaceURI, DOMString localName);
     HTMLCollection getElementsByClassName(DOMString classNames);

     [NewObject, MayThrowException, ImplementedAs=createElementForBindings] Element createElement(DOMString localName); // FIXME: missing options parameter.
     [NewObject, MayThrowException] Element createElementNS(DOMString? namespaceURI, DOMString qualifiedName); // FIXME: missing options parameter.
     [NewObject] DocumentFragment createDocumentFragment();
     [NewObject] Text createTextNode(DOMString data);
     [NewObject, MayThrowException] CDATASection createCDATASection(DOMString data);
     [NewObject] Comment createComment(DOMString data);
     [NewObject, MayThrowException] ProcessingInstruction createProcessingInstruction(DOMString target, DOMString data);

     [CEReactions, MayThrowException, NewObject] Node importNode(Node node, optional boolean deep = false);
     [CEReactions, MayThrowException] Node adoptNode(Node node);

     [NewObject, MayThrowException] Attr createAttribute(DOMString localName);
     [NewObject, MayThrowException] Attr createAttributeNS(DOMString? namespaceURI, DOMString qualifiedName);

     [MayThrowException, NewObject] Event createEvent(DOMString type);

     [NewObject] Range createRange();

     // NodeFilter.SHOW_ALL = 0xFFFFFFFF.
     [NewObject] NodeIterator createNodeIterator(Node root, optional unsigned long whatToShow = 0xFFFFFFFF, optional NodeFilter? filter = null);
     [NewObject] TreeWalker createTreeWalker(Node root, optional unsigned long whatToShow = 0xFFFFFFFF, optional NodeFilter? filter = null);

     // Extensions from HTML specification (https://html.spec.whatwg.org/#the-document-object).
     [PutForwards=href, Unforgeable] readonly attribute Location? location;
     attribute USVString domain;
     readonly attribute USVString referrer;
     attribute USVString cookie;
     readonly attribute DOMString lastModified;
     readonly attribute DocumentReadyState readyState;

     // DOM tree accessors.
     [CEReactions] attribute DOMString title;
     [CEReactions] attribute DOMString dir;
     [CEReactions, DOMJIT=Getter, ImplementedAs=bodyOrFrameset] attribute HTMLElement? body;
     readonly attribute HTMLHeadElement? head;
     readonly attribute HTMLCollection images; // Should be [SameObject].
     readonly attribute HTMLCollection embeds; // Should be [SameObject].
     readonly attribute HTMLCollection plugins; // Should be [SameObject].
     readonly attribute HTMLCollection links; // Should be [SameObject].
     readonly attribute HTMLCollection forms; // Should be [SameObject].
     readonly attribute HTMLCollection scripts; // Should be [SameObject].
     NodeList getElementsByName([AtomicString] DOMString elementName);
     readonly attribute HTMLScriptElement? currentScript; // FIXME: Should return a HTMLOrSVGScriptElement.

     // dynamic markup insertion
     // FIXME: The HTML spec says this should consult the "responsible document". We should ensure
     // that the caller document matches those semantics. It is possible we should replace it with
     // the existing 'incumbent document' concept.
     [CEReactions, CallWith=ResponsibleDocument, ImplementedAs=openForBindings, MayThrowException] Document open(optional DOMString type = "text/html", optional DOMString replace = "");
     [CallWith=ActiveWindow&FirstWindow, ImplementedAs=openForBindings, MayThrowException] DOMWindow open(USVString url, DOMString name, DOMString features);
     [CEReactions, ImplementedAs=closeForBindings, MayThrowException] void close();
     [CEReactions, CallWith=ResponsibleDocument, MayThrowException] void write(DOMString... text);
     [CEReactions, CallWith=ResponsibleDocument, MayThrowException] void writeln(DOMString... text);

     // User interaction.
     readonly attribute DOMWindow? defaultView;
     boolean hasFocus();
     [CEReactions] attribute DOMString designMode;
     [CEReactions] boolean execCommand(DOMString commandId, optional boolean showUI = false, optional DOMString? value = null); // FIXME: value should not be nullable.
     boolean queryCommandEnabled(DOMString commandId);
     boolean queryCommandIndeterm(DOMString commandId);
     boolean queryCommandState(DOMString commandId);
     boolean queryCommandSupported(DOMString commandId);
     DOMString queryCommandValue(DOMString commandId);

     // Special event handler IDL attributes that only apply to Document objects.
     [LenientThis] attribute EventHandler onreadystatechange;

     // Extensions from the CSSOM specification (https://drafts.csswg.org/cssom/#extensions-to-the-document-interface).
     // FIXME: Should likely be moved to DocumentOrShadowRoot.
     readonly attribute StyleSheetList styleSheets; // FIXME: Should be [SameObject].

     // Extensions from the CSSOM-View specification (https://drafts.csswg.org/cssom-view/#extensions-to-the-document-interface).
     readonly attribute Element? scrollingElement;

     // Extensions from Selection API (https://www.w3.org/TR/selection-api/#extensions-to-document-interface).
     // FIXME: Should likely be moved to DocumentOrShadowRoot.
     DOMSelection? getSelection();

     // XPath extensions (https://www.w3.org/TR/DOM-Level-3-XPath/xpath.html#XPathEvaluator).
     [MayThrowException] XPathExpression createExpression(optional DOMString expression = "undefined", optional XPathNSResolver? resolver); // FIXME: Using "undefined" as default parameter value is wrong.
     XPathNSResolver createNSResolver(Node? nodeResolver);
     [MayThrowException] XPathResult evaluate(optional DOMString expression = "undefined", optional Node? contextNode, optional XPathNSResolver? resolver, optional unsigned short type = 0, optional XPathResult? inResult); // FIXME: Using "undefined" as default parameter value is wrong.

     // Extensions from FullScreen API (https://fullscreen.spec.whatwg.org/#api).
     // FIXME: Should probably be unprefixed.
     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] readonly attribute boolean webkitFullscreenEnabled;
     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen, ImplementedAs=webkitFullscreenElementForBindings] readonly attribute Element? webkitFullscreenElement;
     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] void webkitExitFullscreen();
     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] readonly attribute boolean webkitIsFullScreen; // Mozilla version.
     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] readonly attribute boolean webkitFullScreenKeyboardInputAllowed; // Mozilla version.
     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen, ImplementedAs=webkitCurrentFullScreenElementForBindings] readonly attribute Element webkitCurrentFullScreenElement; // Mozilla version.
     [Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] void webkitCancelFullScreen(); // Mozilla version.
     [NotEnumerable, Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] attribute EventHandler onwebkitfullscreenchange;
     [NotEnumerable, Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] attribute EventHandler onwebkitfullscreenerror;

     // Extensions from Pointer Lock API (https://www.w3.org/TR/pointerlock/#extensions-to-the-document-interface).
     [NotEnumerable, Conditional=POINTER_LOCK] attribute EventHandler onpointerlockchange; // FIXME: Should be enumerable.
     [NotEnumerable, Conditional=POINTER_LOCK] attribute EventHandler onpointerlockerror; // FIXME: Should be enumerable.
     [Conditional=POINTER_LOCK] void exitPointerLock();

     // Extensions from CSS Font Loading API (https://drafts.csswg.org/css-font-loading/#font-face-source).
     // FIXME: Should be in a separate FontFaceSource interface.
     readonly attribute FontFaceSet fonts;

     // Extensions from Page visibility API (https://www.w3.org/TR/page-visibility/#sec-document-interface).
     readonly attribute boolean hidden;
     readonly attribute VisibilityState visibilityState;
     attribute EventHandler onvisibilitychange;

     // FIXME: Those were dropped from the CSSOM specification.
     readonly attribute DOMString? preferredStylesheetSet;
     attribute DOMString? selectedStylesheetSet;

     // FIXME: Those have been dropped from the DOM specification.
     readonly attribute DOMString? xmlEncoding;
     attribute DOMString? xmlVersion;
     attribute boolean xmlStandalone;

     // FIXME: Blink has already dropped this (https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/s3ezjTuC8ig).
     CSSStyleDeclaration getOverrideStyle(optional Element? element = null, optional DOMString pseudoElement = "undefined");

     // FIXME: Should be moved to GlobalEventHandlers (http://w3c.github.io/selection-api/#extensions-to-globaleventhandlers).
     [NotEnumerable] attribute EventHandler onselectstart; // FIXME: Should be enumerable.
     [NotEnumerable] attribute EventHandler onselectionchange; // FIXME: Should be enumerable.

     // Non standard: It has been superseeded by caretPositionFromPoint which we do not implement yet.
     Range caretRangeFromPoint(optional long x = 0, optional long y = 0);

     // FIXME: This is not standard and has been dropped from Blink already.
     RenderingContext? getCSSCanvasContext(DOMString contextId, DOMString name, long width, long height);

     // Non standard, to bring up with standards working group.
     [EnabledBySetting=StorageAccessAPI] Promise<bool> hasStorageAccess();
     [EnabledBySetting=StorageAccessAPI] Promise<void> requestStorageAccess();

     // Obsolete features from https://html.spec.whatwg.org/multipage/obsolete.html

     [CEReactions] attribute [TreatNullAs=EmptyString] DOMString fgColor;
     [CEReactions, ImplementedAs=linkColorForBindings] attribute [TreatNullAs=EmptyString] DOMString linkColor;
     [CEReactions] attribute [TreatNullAs=EmptyString] DOMString vlinkColor;
     [CEReactions] attribute [TreatNullAs=EmptyString] DOMString alinkColor;
     [CEReactions] attribute [TreatNullAs=EmptyString] DOMString bgColor;

     readonly attribute HTMLCollection anchors; /* [SameObject] */
     readonly attribute HTMLCollection applets; /* [SameObject] */

     void clear();
     void captureEvents();
     void releaseEvents();

     [Replaceable] readonly attribute HTMLAllCollection all; /* [SameObject] */

     [EnabledAtRuntime=WebAnimations] readonly attribute DocumentTimeline timeline;
     [EnabledAtRuntime=WebAnimations] sequence<WebAnimation> getAnimations();
 };

 enum DocumentReadyState { "loading", "interactive", "complete" };

 Document implements DocumentAndElementEventHandlers;
 Document implements ParentNode;
 Document implements NonElementParentNode;
 Document implements DocumentOrShadowRoot;
 Document implements GlobalEventHandlers;
	/*
	* Copyright (C) 2006, 2007, 2011, 2015 Apple Inc. All rights reserved.
	* Copyright (C) 2006, 2007 Samuel Weinig <sam@webkit.org>
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Library General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Library General Public License for more details.
	*
	* You should have received a copy of the GNU Library General Public License
	* along with this library; see the file COPYING.LIB. If not, write to
	* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/

	typedef (
	#if defined(ENABLE_WEBGL) && ENABLE_WEBGL
	WebGLRenderingContext or
	#endif
	#if defined(ENABLE_WEBGL2) && ENABLE_WEBGL2
	WebGL2RenderingContext or
	#endif
	#if defined(ENABLE_WEBGPU) && ENABLE_WEBGPU
	WebGPURenderingContext or
	#endif
	ImageBitmapRenderingContext or
	CanvasRenderingContext2D) RenderingContext;

	[
	Constructor,
	ConstructorCallWith=Document,
	CustomToJSObject,
	DOMJIT,
	ExportMacro=WEBCORE_EXPORT,
	JSCustomHeader,
	JSCustomMarkFunction,
	JSGenerateToNativeObject,
	] interface Document : Node {
	readonly attribute DOMImplementation implementation; // FIXME: Should be [SameObject].
	[ImplementedAs=urlForBindings] readonly attribute USVString URL;
	[ImplementedAs=urlForBindings] readonly attribute USVString documentURI;
	readonly attribute USVString origin;
	readonly attribute DOMString compatMode;
	[ImplementedAs=characterSetWithUTF8Fallback] readonly attribute DOMString characterSet;
	[ImplementedAs=characterSetWithUTF8Fallback] readonly attribute DOMString charset; // Historical alias of .characterSet,
	[ImplementedAs=characterSetWithUTF8Fallback] readonly attribute DOMString inputEncoding; // Historical alias of .characterSet.
	readonly attribute DOMString contentType;

	readonly attribute DocumentType? doctype;
	[DOMJIT=Getter] readonly attribute Element? documentElement;

	HTMLCollection getElementsByTagName(DOMString qualifiedName);
	HTMLCollection getElementsByTagNameNS(DOMString? namespaceURI, DOMString localName);
	HTMLCollection getElementsByClassName(DOMString classNames);

	[NewObject, MayThrowException, ImplementedAs=createElementForBindings] Element createElement(DOMString localName); // FIXME: missing options parameter.
	[NewObject, MayThrowException] Element createElementNS(DOMString? namespaceURI, DOMString qualifiedName); // FIXME: missing options parameter.
	[NewObject] DocumentFragment createDocumentFragment();
	[NewObject] Text createTextNode(DOMString data);
	[NewObject, MayThrowException] CDATASection createCDATASection(DOMString data);
	[NewObject] Comment createComment(DOMString data);
	[NewObject, MayThrowException] ProcessingInstruction createProcessingInstruction(DOMString target, DOMString data);

	[CEReactions, MayThrowException, NewObject] Node importNode(Node node, optional boolean deep = false);
	[CEReactions, MayThrowException] Node adoptNode(Node node);

	[NewObject, MayThrowException] Attr createAttribute(DOMString localName);
	[NewObject, MayThrowException] Attr createAttributeNS(DOMString? namespaceURI, DOMString qualifiedName);

	[MayThrowException, NewObject] Event createEvent(DOMString type);

	[NewObject] Range createRange();

	// NodeFilter.SHOW_ALL = 0xFFFFFFFF.
	[NewObject] NodeIterator createNodeIterator(Node root, optional unsigned long whatToShow = 0xFFFFFFFF, optional NodeFilter? filter = null);
	[NewObject] TreeWalker createTreeWalker(Node root, optional unsigned long whatToShow = 0xFFFFFFFF, optional NodeFilter? filter = null);

	// Extensions from HTML specification (https://html.spec.whatwg.org/#the-document-object).
	[PutForwards=href, Unforgeable] readonly attribute Location? location;
	attribute USVString domain;
	readonly attribute USVString referrer;
	attribute USVString cookie;
	readonly attribute DOMString lastModified;
	readonly attribute DocumentReadyState readyState;

	// DOM tree accessors.
	[CEReactions] attribute DOMString title;
	[CEReactions] attribute DOMString dir;
	[CEReactions, DOMJIT=Getter, ImplementedAs=bodyOrFrameset] attribute HTMLElement? body;
	readonly attribute HTMLHeadElement? head;
	readonly attribute HTMLCollection images; // Should be [SameObject].
	readonly attribute HTMLCollection embeds; // Should be [SameObject].
	readonly attribute HTMLCollection plugins; // Should be [SameObject].
	readonly attribute HTMLCollection links; // Should be [SameObject].
	readonly attribute HTMLCollection forms; // Should be [SameObject].
	readonly attribute HTMLCollection scripts; // Should be [SameObject].
	NodeList getElementsByName([AtomicString] DOMString elementName);
	readonly attribute HTMLScriptElement? currentScript; // FIXME: Should return a HTMLOrSVGScriptElement.

	// dynamic markup insertion
	// FIXME: The HTML spec says this should consult the "responsible document". We should ensure
	// that the caller document matches those semantics. It is possible we should replace it with
	// the existing 'incumbent document' concept.
	[CEReactions, CallWith=ResponsibleDocument, ImplementedAs=openForBindings, MayThrowException] Document open(optional DOMString type = "text/html", optional DOMString replace = "");
	[CallWith=ActiveWindow&FirstWindow, ImplementedAs=openForBindings, MayThrowException] DOMWindow open(USVString url, DOMString name, DOMString features);
	[CEReactions, ImplementedAs=closeForBindings, MayThrowException] void close();
	[CEReactions, CallWith=ResponsibleDocument, MayThrowException] void write(DOMString... text);
	[CEReactions, CallWith=ResponsibleDocument, MayThrowException] void writeln(DOMString... text);

	// User interaction.
	readonly attribute DOMWindow? defaultView;
	boolean hasFocus();
	[CEReactions] attribute DOMString designMode;
	[CEReactions] boolean execCommand(DOMString commandId, optional boolean showUI = false, optional DOMString? value = null); // FIXME: value should not be nullable.
	boolean queryCommandEnabled(DOMString commandId);
	boolean queryCommandIndeterm(DOMString commandId);
	boolean queryCommandState(DOMString commandId);
	boolean queryCommandSupported(DOMString commandId);
	DOMString queryCommandValue(DOMString commandId);

	// Special event handler IDL attributes that only apply to Document objects.
	[LenientThis] attribute EventHandler onreadystatechange;

	// Extensions from the CSSOM specification (https://drafts.csswg.org/cssom/#extensions-to-the-document-interface).
	// FIXME: Should likely be moved to DocumentOrShadowRoot.
	readonly attribute StyleSheetList styleSheets; // FIXME: Should be [SameObject].

	// Extensions from the CSSOM-View specification (https://drafts.csswg.org/cssom-view/#extensions-to-the-document-interface).
	readonly attribute Element? scrollingElement;

	// Extensions from Selection API (https://www.w3.org/TR/selection-api/#extensions-to-document-interface).
	// FIXME: Should likely be moved to DocumentOrShadowRoot.
	DOMSelection? getSelection();

	// XPath extensions (https://www.w3.org/TR/DOM-Level-3-XPath/xpath.html#XPathEvaluator).
	[MayThrowException] XPathExpression createExpression(optional DOMString expression = "undefined", optional XPathNSResolver? resolver); // FIXME: Using "undefined" as default parameter value is wrong.
	XPathNSResolver createNSResolver(Node? nodeResolver);
	[MayThrowException] XPathResult evaluate(optional DOMString expression = "undefined", optional Node? contextNode, optional XPathNSResolver? resolver, optional unsigned short type = 0, optional XPathResult? inResult); // FIXME: Using "undefined" as default parameter value is wrong.

	// Extensions from FullScreen API (https://fullscreen.spec.whatwg.org/#api).
	// FIXME: Should probably be unprefixed.
	[Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] readonly attribute boolean webkitFullscreenEnabled;
	[Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen, ImplementedAs=webkitFullscreenElementForBindings] readonly attribute Element? webkitFullscreenElement;
	[Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] void webkitExitFullscreen();
	[Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] readonly attribute boolean webkitIsFullScreen; // Mozilla version.
	[Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] readonly attribute boolean webkitFullScreenKeyboardInputAllowed; // Mozilla version.
	[Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen, ImplementedAs=webkitCurrentFullScreenElementForBindings] readonly attribute Element webkitCurrentFullScreenElement; // Mozilla version.
	[Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] void webkitCancelFullScreen(); // Mozilla version.
	[NotEnumerable, Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] attribute EventHandler onwebkitfullscreenchange;
	[NotEnumerable, Conditional=FULLSCREEN_API, EnabledBySetting=FullScreen] attribute EventHandler onwebkitfullscreenerror;

	// Extensions from Pointer Lock API (https://www.w3.org/TR/pointerlock/#extensions-to-the-document-interface).
	[NotEnumerable, Conditional=POINTER_LOCK] attribute EventHandler onpointerlockchange; // FIXME: Should be enumerable.
	[NotEnumerable, Conditional=POINTER_LOCK] attribute EventHandler onpointerlockerror; // FIXME: Should be enumerable.
	[Conditional=POINTER_LOCK] void exitPointerLock();

	// Extensions from CSS Font Loading API (https://drafts.csswg.org/css-font-loading/#font-face-source).
	// FIXME: Should be in a separate FontFaceSource interface.
	readonly attribute FontFaceSet fonts;

	// Extensions from Page visibility API (https://www.w3.org/TR/page-visibility/#sec-document-interface).
	readonly attribute boolean hidden;
	readonly attribute VisibilityState visibilityState;
	attribute EventHandler onvisibilitychange;

	// FIXME: Those were dropped from the CSSOM specification.
	readonly attribute DOMString? preferredStylesheetSet;
	attribute DOMString? selectedStylesheetSet;

	// FIXME: Those have been dropped from the DOM specification.
	readonly attribute DOMString? xmlEncoding;
	attribute DOMString? xmlVersion;
	attribute boolean xmlStandalone;

	// FIXME: Blink has already dropped this (https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/s3ezjTuC8ig).
	CSSStyleDeclaration getOverrideStyle(optional Element? element = null, optional DOMString pseudoElement = "undefined");

	// FIXME: Should be moved to GlobalEventHandlers (http://w3c.github.io/selection-api/#extensions-to-globaleventhandlers).
	[NotEnumerable] attribute EventHandler onselectstart; // FIXME: Should be enumerable.
	[NotEnumerable] attribute EventHandler onselectionchange; // FIXME: Should be enumerable.

	// Non standard: It has been superseeded by caretPositionFromPoint which we do not implement yet.
	Range caretRangeFromPoint(optional long x = 0, optional long y = 0);

	// FIXME: This is not standard and has been dropped from Blink already.
	RenderingContext? getCSSCanvasContext(DOMString contextId, DOMString name, long width, long height);

	// Non standard, to bring up with standards working group.
	[EnabledBySetting=StorageAccessAPI] Promise<bool> hasStorageAccess();
	[EnabledBySetting=StorageAccessAPI] Promise<void> requestStorageAccess();

	// Obsolete features from https://html.spec.whatwg.org/multipage/obsolete.html

	[CEReactions] attribute [TreatNullAs=EmptyString] DOMString fgColor;
	[CEReactions, ImplementedAs=linkColorForBindings] attribute [TreatNullAs=EmptyString] DOMString linkColor;
	[CEReactions] attribute [TreatNullAs=EmptyString] DOMString vlinkColor;
	[CEReactions] attribute [TreatNullAs=EmptyString] DOMString alinkColor;
	[CEReactions] attribute [TreatNullAs=EmptyString] DOMString bgColor;

	readonly attribute HTMLCollection anchors; /* [SameObject] */
	readonly attribute HTMLCollection applets; /* [SameObject] */

	void clear();
	void captureEvents();
	void releaseEvents();

	[Replaceable] readonly attribute HTMLAllCollection all; /* [SameObject] */

	[EnabledAtRuntime=WebAnimations] readonly attribute DocumentTimeline timeline;
	[EnabledAtRuntime=WebAnimations] sequence<WebAnimation> getAnimations();
	};

	enum DocumentReadyState { "loading", "interactive", "complete" };

	Document implements DocumentAndElementEventHandlers;
	Document implements ParentNode;
	Document implements NonElementParentNode;
	Document implements DocumentOrShadowRoot;
	Document implements GlobalEventHandlers;