sdk/lib/html/dart2js/html_dart2js.dart

/**
 * HTML elements and other resources for web-based applications that need to
 * interact with the browser and the DOM (Document Object Model).
 *
 * This library includes DOM element types, CSS styling, local storage,
 * media, speech, events, and more.
 * To get started,
 * check out the [Element] class, the base class for many of the HTML
 * DOM types.
 *
 * For information on writing web apps with Dart, see https://dart.dev/web.
 *
 * {@category Web}
 * {@canonicalFor dart:_internal.HttpStatus}
 */
library dart.dom.html;

import 'dart:async';
import 'dart:collection' hide LinkedList, LinkedListEntry;
import 'dart:_internal' hide Symbol;
import 'dart:html_common';
import 'dart:indexed_db';
import "dart:convert";
import 'dart:math';
import 'dart:_native_typed_data';
import 'dart:typed_data';
import 'dart:svg' as svg;
import 'dart:svg' show Matrix;
import 'dart:svg' show SvgSvgElement;
import 'dart:web_audio' as web_audio;
import 'dart:web_audio' show AudioBuffer, AudioTrack, AudioTrackList;
import 'dart:web_gl' as gl;
import 'dart:web_gl' show RenderingContext, RenderingContext2;
import 'dart:web_sql';
import 'dart:_foreign_helper' show JS, JS_INTERCEPTOR_CONSTANT;
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// DO NOT EDIT - unless you are editing documentation as per:
// https://code.google.com/p/dart/wiki/ContributingHTMLDocumentation
// Auto-generated dart:html library.

// Not actually used, but imported since dart:html can generate these objects.
import 'dart:_js_helper'
    show
        convertDartClosureToJS,
        Creates,
        JavaScriptIndexingBehavior,
        JSName,
        Native,
        Returns,
        ForceInline,
        findDispatchTagForInterceptorClass,
        setNativeSubclassDispatchRecord,
        makeLeafDispatchRecord,
        registerGlobalObject,
        applyExtension;
import 'dart:_interceptors'
    show
        Interceptor,
        JavaScriptFunction,
        JSExtendableArray,
        JSUInt31,
        findInterceptorConstructorForType,
        findConstructorForNativeSubclassType,
        getNativeInterceptor,
        setDispatchProperty;

export 'dart:_internal' show HttpStatus;
export 'dart:html_common' show promiseToFuture;
export 'dart:math' show Rectangle, Point;

/**
 * Top-level container for a web page, which is usually a browser tab or window.
 *
 * Each web page loaded in the browser has its own [Window], which is a
 * container for the web page.
 *
 * If the web page has any `<iframe>` elements, then each `<iframe>` has its own
 * [Window] object, which is accessible only to that `<iframe>`.
 *
 * See also:
 *
 *   * [Window](https://developer.mozilla.org/en-US/docs/Web/API/window) from MDN.
 */
Window get window => JS('Window', 'window');

/**
 * Root node for all content in a web page.
 */
HtmlDocument get document =>
    JS('returns:HtmlDocument;depends:none;effects:none;gvn:true', 'document');

/// Convert a JS Promise to a Future<Map<String, dynamic>>.
///
/// On a successful result the native JS result will be converted to a Dart Map.
/// See [convertNativeToDart_Dictionary]. On a rejected promise the error is
/// forwarded without change.
Future<Map<String, dynamic>?> promiseToFutureAsMap(jsPromise) =>
    promiseToFuture(jsPromise).then(convertNativeToDart_Dictionary);

// Workaround for tags like <cite> that lack their own Element subclass --
// Dart issue 1990.
@Native("HTMLElement")
class HtmlElement extends Element implements NoncedElement {
  factory HtmlElement() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  HtmlElement.created() : super.created();

  // From NoncedElement
  String? get nonce native;
  set nonce(String? value) native;
}

/**
 * Emitted for any setlike IDL entry needs a callback signature.
 * Today there is only one.
 */
typedef void FontFaceSetForEachCallback(
    FontFace fontFace, FontFace fontFaceAgain, FontFaceSet set);

WorkerGlobalScope get _workerSelf => JS('WorkerGlobalScope', 'self');
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AbortPaymentEvent")
class AbortPaymentEvent extends ExtendableEvent {
  // To suppress missing implicit constructor warnings.
  factory AbortPaymentEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory AbortPaymentEvent(String type, Map eventInitDict) {
    var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
    return AbortPaymentEvent._create_1(type, eventInitDict_1);
  }
  static AbortPaymentEvent _create_1(type, eventInitDict) => JS(
      'AbortPaymentEvent', 'new AbortPaymentEvent(#,#)', type, eventInitDict);

  void respondWith(Future paymentAbortedResponse) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AbsoluteOrientationSensor")
class AbsoluteOrientationSensor extends OrientationSensor {
  // To suppress missing implicit constructor warnings.
  factory AbsoluteOrientationSensor._() {
    throw new UnsupportedError("Not supported");
  }

  factory AbsoluteOrientationSensor([Map? sensorOptions]) {
    if (sensorOptions != null) {
      var sensorOptions_1 = convertDartToNative_Dictionary(sensorOptions);
      return AbsoluteOrientationSensor._create_1(sensorOptions_1);
    }
    return AbsoluteOrientationSensor._create_2();
  }
  static AbsoluteOrientationSensor _create_1(sensorOptions) => JS(
      'AbsoluteOrientationSensor',
      'new AbsoluteOrientationSensor(#)',
      sensorOptions);
  static AbsoluteOrientationSensor _create_2() =>
      JS('AbsoluteOrientationSensor', 'new AbsoluteOrientationSensor()');
}
// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

abstract class AbstractWorker extends Interceptor implements EventTarget {
  // To suppress missing implicit constructor warnings.
  factory AbstractWorker._() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Static factory designed to expose `error` events to event
   * handlers that are not necessarily instances of [AbstractWorker].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> errorEvent =
      const EventStreamProvider<Event>('error');

  /// Stream of `error` events handled by this [AbstractWorker].
  Stream<Event> get onError => errorEvent.forTarget(this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Accelerometer")
class Accelerometer extends Sensor {
  // To suppress missing implicit constructor warnings.
  factory Accelerometer._() {
    throw new UnsupportedError("Not supported");
  }

  factory Accelerometer([Map? sensorOptions]) {
    if (sensorOptions != null) {
      var sensorOptions_1 = convertDartToNative_Dictionary(sensorOptions);
      return Accelerometer._create_1(sensorOptions_1);
    }
    return Accelerometer._create_2();
  }
  static Accelerometer _create_1(sensorOptions) =>
      JS('Accelerometer', 'new Accelerometer(#)', sensorOptions);
  static Accelerometer _create_2() =>
      JS('Accelerometer', 'new Accelerometer()');

  num? get x native;

  num? get y native;

  num? get z native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AccessibleNode")
class AccessibleNode extends EventTarget {
  // To suppress missing implicit constructor warnings.
  factory AccessibleNode._() {
    throw new UnsupportedError("Not supported");
  }

  static const EventStreamProvider<Event> accessibleClickEvent =
      const EventStreamProvider<Event>('accessibleclick');

  static const EventStreamProvider<Event> accessibleContextMenuEvent =
      const EventStreamProvider<Event>('accessiblecontextmenu');

  static const EventStreamProvider<Event> accessibleDecrementEvent =
      const EventStreamProvider<Event>('accessibledecrement');

  static const EventStreamProvider<Event> accessibleFocusEvent =
      const EventStreamProvider<Event>('accessiblefocus');

  static const EventStreamProvider<Event> accessibleIncrementEvent =
      const EventStreamProvider<Event>('accessibleincrement');

  static const EventStreamProvider<Event> accessibleScrollIntoViewEvent =
      const EventStreamProvider<Event>('accessiblescrollintoview');

  factory AccessibleNode() {
    return AccessibleNode._create_1();
  }
  static AccessibleNode _create_1() =>
      JS('AccessibleNode', 'new AccessibleNode()');

  AccessibleNode? get activeDescendant native;

  set activeDescendant(AccessibleNode? value) native;

  bool? get atomic native;

  set atomic(bool? value) native;

  String? get autocomplete native;

  set autocomplete(String? value) native;

  bool? get busy native;

  set busy(bool? value) native;

  String? get checked native;

  set checked(String? value) native;

  int? get colCount native;

  set colCount(int? value) native;

  int? get colIndex native;

  set colIndex(int? value) native;

  int? get colSpan native;

  set colSpan(int? value) native;

  AccessibleNodeList? get controls native;

  set controls(AccessibleNodeList? value) native;

  String? get current native;

  set current(String? value) native;

  AccessibleNodeList? get describedBy native;

  set describedBy(AccessibleNodeList? value) native;

  AccessibleNode? get details native;

  set details(AccessibleNode? value) native;

  bool? get disabled native;

  set disabled(bool? value) native;

  AccessibleNode? get errorMessage native;

  set errorMessage(AccessibleNode? value) native;

  bool? get expanded native;

  set expanded(bool? value) native;

  AccessibleNodeList? get flowTo native;

  set flowTo(AccessibleNodeList? value) native;

  String? get hasPopUp native;

  set hasPopUp(String? value) native;

  bool? get hidden native;

  set hidden(bool? value) native;

  String? get invalid native;

  set invalid(String? value) native;

  String? get keyShortcuts native;

  set keyShortcuts(String? value) native;

  String? get label native;

  set label(String? value) native;

  AccessibleNodeList? get labeledBy native;

  set labeledBy(AccessibleNodeList? value) native;

  int? get level native;

  set level(int? value) native;

  String? get live native;

  set live(String? value) native;

  bool? get modal native;

  set modal(bool? value) native;

  bool? get multiline native;

  set multiline(bool? value) native;

  bool? get multiselectable native;

  set multiselectable(bool? value) native;

  String? get orientation native;

  set orientation(String? value) native;

  AccessibleNodeList? get owns native;

  set owns(AccessibleNodeList? value) native;

  String? get placeholder native;

  set placeholder(String? value) native;

  int? get posInSet native;

  set posInSet(int? value) native;

  String? get pressed native;

  set pressed(String? value) native;

  bool? get readOnly native;

  set readOnly(bool? value) native;

  String? get relevant native;

  set relevant(String? value) native;

  bool? get required native;

  set required(bool? value) native;

  String? get role native;

  set role(String? value) native;

  String? get roleDescription native;

  set roleDescription(String? value) native;

  int? get rowCount native;

  set rowCount(int? value) native;

  int? get rowIndex native;

  set rowIndex(int? value) native;

  int? get rowSpan native;

  set rowSpan(int? value) native;

  bool? get selected native;

  set selected(bool? value) native;

  int? get setSize native;

  set setSize(int? value) native;

  String? get sort native;

  set sort(String? value) native;

  num? get valueMax native;

  set valueMax(num? value) native;

  num? get valueMin native;

  set valueMin(num? value) native;

  num? get valueNow native;

  set valueNow(num? value) native;

  String? get valueText native;

  set valueText(String? value) native;

  void appendChild(AccessibleNode child) native;

  Stream<Event> get onAccessibleClick => accessibleClickEvent.forTarget(this);

  Stream<Event> get onAccessibleContextMenu =>
      accessibleContextMenuEvent.forTarget(this);

  Stream<Event> get onAccessibleDecrement =>
      accessibleDecrementEvent.forTarget(this);

  Stream<Event> get onAccessibleFocus => accessibleFocusEvent.forTarget(this);

  Stream<Event> get onAccessibleIncrement =>
      accessibleIncrementEvent.forTarget(this);

  Stream<Event> get onAccessibleScrollIntoView =>
      accessibleScrollIntoViewEvent.forTarget(this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AccessibleNodeList")
class AccessibleNodeList extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory AccessibleNodeList._() {
    throw new UnsupportedError("Not supported");
  }

  factory AccessibleNodeList([List<AccessibleNode>? nodes]) {
    if (nodes != null) {
      return AccessibleNodeList._create_1(nodes);
    }
    return AccessibleNodeList._create_2();
  }
  static AccessibleNodeList _create_1(nodes) =>
      JS('AccessibleNodeList', 'new AccessibleNodeList(#)', nodes);
  static AccessibleNodeList _create_2() =>
      JS('AccessibleNodeList', 'new AccessibleNodeList()');

  int? get length native;

  set length(int? value) native;

  void __setter__(int index, AccessibleNode node) native;

  void add(AccessibleNode node, AccessibleNode? before) native;

  AccessibleNode? item(int index) native;

  void remove(int index) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AmbientLightSensor")
class AmbientLightSensor extends Sensor {
  // To suppress missing implicit constructor warnings.
  factory AmbientLightSensor._() {
    throw new UnsupportedError("Not supported");
  }

  factory AmbientLightSensor([Map? sensorOptions]) {
    if (sensorOptions != null) {
      var sensorOptions_1 = convertDartToNative_Dictionary(sensorOptions);
      return AmbientLightSensor._create_1(sensorOptions_1);
    }
    return AmbientLightSensor._create_2();
  }
  static AmbientLightSensor _create_1(sensorOptions) =>
      JS('AmbientLightSensor', 'new AmbientLightSensor(#)', sensorOptions);
  static AmbientLightSensor _create_2() =>
      JS('AmbientLightSensor', 'new AmbientLightSensor()');

  num? get illuminance native;
}
// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLAnchorElement")
class AnchorElement extends HtmlElement implements HtmlHyperlinkElementUtils {
  // To suppress missing implicit constructor warnings.
  factory AnchorElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory AnchorElement({String? href}) {
    AnchorElement e = JS<AnchorElement>(
        'returns:AnchorElement;creates:AnchorElement;new:true',
        '#.createElement(#)',
        document,
        "a");
    if (href != null) e.href = href;
    return e;
  }
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  AnchorElement.created() : super.created();

  String? get download native;

  set download(String? value) native;

  String get hreflang native;

  set hreflang(String value) native;

  String? get referrerPolicy native;

  set referrerPolicy(String? value) native;

  String get rel native;

  set rel(String value) native;

  String get target native;

  set target(String value) native;

  String get type native;

  set type(String value) native;

  // From HTMLHyperlinkElementUtils

  String? get hash native;

  set hash(String? value) native;

  String? get host native;

  set host(String? value) native;

  String? get hostname native;

  set hostname(String? value) native;

  String? get href native;

  set href(String? value) native;

  String? get origin native;

  String? get password native;

  set password(String? value) native;

  String? get pathname native;

  set pathname(String? value) native;

  String? get port native;

  set port(String? value) native;

  String? get protocol native;

  set protocol(String? value) native;

  String? get search native;

  set search(String? value) native;

  String? get username native;

  set username(String? value) native;

  String toString() => JS('String', 'String(#)', this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Animation")
class Animation extends EventTarget {
  // To suppress missing implicit constructor warnings.
  factory Animation._() {
    throw new UnsupportedError("Not supported");
  }

  static const EventStreamProvider<Event> cancelEvent =
      const EventStreamProvider<Event>('cancel');

  static const EventStreamProvider<Event> finishEvent =
      const EventStreamProvider<Event>('finish');

  factory Animation(
      [AnimationEffectReadOnly? effect, AnimationTimeline? timeline]) {
    if (timeline != null) {
      return Animation._create_1(effect, timeline);
    }
    if (effect != null) {
      return Animation._create_2(effect);
    }
    return Animation._create_3();
  }
  static Animation _create_1(effect, timeline) =>
      JS('Animation', 'new Animation(#,#)', effect, timeline);
  static Animation _create_2(effect) =>
      JS('Animation', 'new Animation(#)', effect);
  static Animation _create_3() => JS('Animation', 'new Animation()');

  /// Checks if this type is supported on the current platform.
  static bool get supported => JS('bool', '!!(document.body.animate)');

  num? get currentTime native;

  set currentTime(num? value) native;

  AnimationEffectReadOnly? get effect native;

  set effect(AnimationEffectReadOnly? value) native;

  Future<Animation> get finished =>
      promiseToFuture<Animation>(JS("creates:Animation;", "#.finished", this));

  String? get id native;

  set id(String? value) native;

  String? get playState native;

  num? get playbackRate native;

  set playbackRate(num? value) native;

  Future<Animation> get ready =>
      promiseToFuture<Animation>(JS("creates:Animation;", "#.ready", this));

  num? get startTime native;

  set startTime(num? value) native;

  AnimationTimeline? get timeline native;

  void cancel() native;

  void finish() native;

  void pause() native;

  void play() native;

  void reverse() native;

  Stream<Event> get onCancel => cancelEvent.forTarget(this);

  Stream<Event> get onFinish => finishEvent.forTarget(this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AnimationEffectReadOnly")
class AnimationEffectReadOnly extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory AnimationEffectReadOnly._() {
    throw new UnsupportedError("Not supported");
  }

  AnimationEffectTimingReadOnly? get timing native;

  Map getComputedTiming() {
    return convertNativeToDart_Dictionary(_getComputedTiming_1())!;
  }

  @JSName('getComputedTiming')
  _getComputedTiming_1() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AnimationEffectTiming")
class AnimationEffectTiming extends AnimationEffectTimingReadOnly {
  // To suppress missing implicit constructor warnings.
  factory AnimationEffectTiming._() {
    throw new UnsupportedError("Not supported");
  }

  // Shadowing definition.

  num? get delay native;

  set delay(num? value) native;

  // Shadowing definition.

  String? get direction native;

  set direction(String? value) native;

  // Shadowing definition.

  @Returns('num|String|Null')
  Object? get duration native;

  set duration(Object? value) native;

  // Shadowing definition.

  String? get easing native;

  set easing(String? value) native;

  // Shadowing definition.

  num? get endDelay native;

  set endDelay(num? value) native;

  // Shadowing definition.

  String? get fill native;

  set fill(String? value) native;

  // Shadowing definition.

  num? get iterationStart native;

  set iterationStart(num? value) native;

  // Shadowing definition.

  num? get iterations native;

  set iterations(num? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AnimationEffectTimingReadOnly")
class AnimationEffectTimingReadOnly extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory AnimationEffectTimingReadOnly._() {
    throw new UnsupportedError("Not supported");
  }

  num? get delay native;

  String? get direction native;

  Object? get duration native;

  String? get easing native;

  num? get endDelay native;

  String? get fill native;

  num? get iterationStart native;

  num? get iterations native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AnimationEvent")
class AnimationEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory AnimationEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory AnimationEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return AnimationEvent._create_1(type, eventInitDict_1);
    }
    return AnimationEvent._create_2(type);
  }
  static AnimationEvent _create_1(type, eventInitDict) =>
      JS('AnimationEvent', 'new AnimationEvent(#,#)', type, eventInitDict);
  static AnimationEvent _create_2(type) =>
      JS('AnimationEvent', 'new AnimationEvent(#)', type);

  String? get animationName native;

  num? get elapsedTime native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AnimationPlaybackEvent")
class AnimationPlaybackEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory AnimationPlaybackEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory AnimationPlaybackEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return AnimationPlaybackEvent._create_1(type, eventInitDict_1);
    }
    return AnimationPlaybackEvent._create_2(type);
  }
  static AnimationPlaybackEvent _create_1(type, eventInitDict) => JS(
      'AnimationPlaybackEvent',
      'new AnimationPlaybackEvent(#,#)',
      type,
      eventInitDict);
  static AnimationPlaybackEvent _create_2(type) =>
      JS('AnimationPlaybackEvent', 'new AnimationPlaybackEvent(#)', type);

  num? get currentTime native;

  num? get timelineTime native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AnimationTimeline")
class AnimationTimeline extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory AnimationTimeline._() {
    throw new UnsupportedError("Not supported");
  }

  num? get currentTime native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AnimationWorkletGlobalScope")
class AnimationWorkletGlobalScope extends WorkletGlobalScope {
  // To suppress missing implicit constructor warnings.
  factory AnimationWorkletGlobalScope._() {
    throw new UnsupportedError("Not supported");
  }

  void registerAnimator(String name, Object animatorConstructor) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * ApplicationCache is accessed via [Window.applicationCache].
 */
@SupportedBrowser(SupportedBrowser.CHROME)
@SupportedBrowser(SupportedBrowser.FIREFOX)
@SupportedBrowser(SupportedBrowser.IE, '10')
@SupportedBrowser(SupportedBrowser.OPERA)
@SupportedBrowser(SupportedBrowser.SAFARI)
@Unstable()
@Native("ApplicationCache,DOMApplicationCache,OfflineResourceList")
class ApplicationCache extends EventTarget {
  // To suppress missing implicit constructor warnings.
  factory ApplicationCache._() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Static factory designed to expose `cached` events to event
   * handlers that are not necessarily instances of [ApplicationCache].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> cachedEvent =
      const EventStreamProvider<Event>('cached');

  /**
   * Static factory designed to expose `checking` events to event
   * handlers that are not necessarily instances of [ApplicationCache].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> checkingEvent =
      const EventStreamProvider<Event>('checking');

  /**
   * Static factory designed to expose `downloading` events to event
   * handlers that are not necessarily instances of [ApplicationCache].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> downloadingEvent =
      const EventStreamProvider<Event>('downloading');

  /**
   * Static factory designed to expose `error` events to event
   * handlers that are not necessarily instances of [ApplicationCache].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> errorEvent =
      const EventStreamProvider<Event>('error');

  /**
   * Static factory designed to expose `noupdate` events to event
   * handlers that are not necessarily instances of [ApplicationCache].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> noUpdateEvent =
      const EventStreamProvider<Event>('noupdate');

  /**
   * Static factory designed to expose `obsolete` events to event
   * handlers that are not necessarily instances of [ApplicationCache].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> obsoleteEvent =
      const EventStreamProvider<Event>('obsolete');

  /**
   * Static factory designed to expose `progress` events to event
   * handlers that are not necessarily instances of [ApplicationCache].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<ProgressEvent> progressEvent =
      const EventStreamProvider<ProgressEvent>('progress');

  /**
   * Static factory designed to expose `updateready` events to event
   * handlers that are not necessarily instances of [ApplicationCache].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> updateReadyEvent =
      const EventStreamProvider<Event>('updateready');

  /// Checks if this type is supported on the current platform.
  static bool get supported => JS('bool', '!!(window.applicationCache)');

  static const int CHECKING = 2;

  static const int DOWNLOADING = 3;

  static const int IDLE = 1;

  static const int OBSOLETE = 5;

  static const int UNCACHED = 0;

  static const int UPDATEREADY = 4;

  int? get status native;

  void abort() native;

  void swapCache() native;

  void update() native;

  /// Stream of `cached` events handled by this [ApplicationCache].
  Stream<Event> get onCached => cachedEvent.forTarget(this);

  /// Stream of `checking` events handled by this [ApplicationCache].
  Stream<Event> get onChecking => checkingEvent.forTarget(this);

  /// Stream of `downloading` events handled by this [ApplicationCache].
  Stream<Event> get onDownloading => downloadingEvent.forTarget(this);

  /// Stream of `error` events handled by this [ApplicationCache].
  Stream<Event> get onError => errorEvent.forTarget(this);

  /// Stream of `noupdate` events handled by this [ApplicationCache].
  Stream<Event> get onNoUpdate => noUpdateEvent.forTarget(this);

  /// Stream of `obsolete` events handled by this [ApplicationCache].
  Stream<Event> get onObsolete => obsoleteEvent.forTarget(this);

  /// Stream of `progress` events handled by this [ApplicationCache].
  Stream<ProgressEvent> get onProgress => progressEvent.forTarget(this);

  /// Stream of `updateready` events handled by this [ApplicationCache].
  Stream<Event> get onUpdateReady => updateReadyEvent.forTarget(this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("ApplicationCacheErrorEvent")
class ApplicationCacheErrorEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory ApplicationCacheErrorEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory ApplicationCacheErrorEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return ApplicationCacheErrorEvent._create_1(type, eventInitDict_1);
    }
    return ApplicationCacheErrorEvent._create_2(type);
  }
  static ApplicationCacheErrorEvent _create_1(type, eventInitDict) => JS(
      'ApplicationCacheErrorEvent',
      'new ApplicationCacheErrorEvent(#,#)',
      type,
      eventInitDict);
  static ApplicationCacheErrorEvent _create_2(type) => JS(
      'ApplicationCacheErrorEvent', 'new ApplicationCacheErrorEvent(#)', type);

  String? get message native;

  String? get reason native;

  int? get status native;

  String? get url native;
}
// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * DOM Area Element, which links regions of an image map with a hyperlink.
 *
 * The element can also define an uninteractive region of the map.
 *
 * See also:
 *
 * * [`<area>`](https://developer.mozilla.org/en-US/docs/HTML/Element/area)
 * on MDN.
 */
@Native("HTMLAreaElement")
class AreaElement extends HtmlElement implements HtmlHyperlinkElementUtils {
  // To suppress missing implicit constructor warnings.
  factory AreaElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory AreaElement() => JS<AreaElement>(
      'returns:AreaElement;creates:AreaElement;new:true',
      '#.createElement(#)',
      document,
      "area");
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  AreaElement.created() : super.created();

  String get alt native;

  set alt(String value) native;

  String get coords native;

  set coords(String value) native;

  String? get download native;

  set download(String? value) native;

  String? get referrerPolicy native;

  set referrerPolicy(String? value) native;

  String get rel native;

  set rel(String value) native;

  String get shape native;

  set shape(String value) native;

  String get target native;

  set target(String value) native;

  // From HTMLHyperlinkElementUtils

  String? get hash native;

  set hash(String? value) native;

  String? get host native;

  set host(String? value) native;

  String? get hostname native;

  set hostname(String? value) native;

  String? get href native;

  set href(String? value) native;

  String? get origin native;

  String? get password native;

  set password(String? value) native;

  String? get pathname native;

  set pathname(String? value) native;

  String? get port native;

  set port(String? value) native;

  String? get protocol native;

  set protocol(String? value) native;

  String? get search native;

  set search(String? value) native;

  String? get username native;

  set username(String? value) native;

  String toString() => JS('String', 'String(#)', this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLAudioElement")
class AudioElement extends MediaElement {
  factory AudioElement._([String? src]) {
    if (src != null) {
      return AudioElement._create_1(src);
    }
    return AudioElement._create_2();
  }
  static AudioElement _create_1(src) => JS('AudioElement', 'new Audio(#)', src);
  static AudioElement _create_2() => JS('AudioElement', 'new Audio()');
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  AudioElement.created() : super.created();

  factory AudioElement([String? src]) => new AudioElement._(src);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AuthenticatorAssertionResponse")
class AuthenticatorAssertionResponse extends AuthenticatorResponse {
  // To suppress missing implicit constructor warnings.
  factory AuthenticatorAssertionResponse._() {
    throw new UnsupportedError("Not supported");
  }

  ByteBuffer? get authenticatorData native;

  ByteBuffer? get signature native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AuthenticatorAttestationResponse")
class AuthenticatorAttestationResponse extends AuthenticatorResponse {
  // To suppress missing implicit constructor warnings.
  factory AuthenticatorAttestationResponse._() {
    throw new UnsupportedError("Not supported");
  }

  ByteBuffer? get attestationObject native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("AuthenticatorResponse")
class AuthenticatorResponse extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory AuthenticatorResponse._() {
    throw new UnsupportedError("Not supported");
  }

  @JSName('clientDataJSON')
  ByteBuffer? get clientDataJson native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLBRElement")
class BRElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory BRElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory BRElement() => JS<BRElement>(
      'returns:BRElement;creates:BRElement;new:true',
      '#.createElement(#)',
      document,
      "br");
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  BRElement.created() : super.created();
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BackgroundFetchClickEvent")
class BackgroundFetchClickEvent extends BackgroundFetchEvent {
  // To suppress missing implicit constructor warnings.
  factory BackgroundFetchClickEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory BackgroundFetchClickEvent(String type, Map init) {
    var init_1 = convertDartToNative_Dictionary(init);
    return BackgroundFetchClickEvent._create_1(type, init_1);
  }
  static BackgroundFetchClickEvent _create_1(type, init) => JS(
      'BackgroundFetchClickEvent',
      'new BackgroundFetchClickEvent(#,#)',
      type,
      init);

  String? get state native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BackgroundFetchEvent")
class BackgroundFetchEvent extends ExtendableEvent {
  // To suppress missing implicit constructor warnings.
  factory BackgroundFetchEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory BackgroundFetchEvent(String type, Map init) {
    var init_1 = convertDartToNative_Dictionary(init);
    return BackgroundFetchEvent._create_1(type, init_1);
  }
  static BackgroundFetchEvent _create_1(type, init) =>
      JS('BackgroundFetchEvent', 'new BackgroundFetchEvent(#,#)', type, init);

  String? get id native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BackgroundFetchFailEvent")
class BackgroundFetchFailEvent extends BackgroundFetchEvent {
  // To suppress missing implicit constructor warnings.
  factory BackgroundFetchFailEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory BackgroundFetchFailEvent(String type, Map init) {
    var init_1 = convertDartToNative_Dictionary(init);
    return BackgroundFetchFailEvent._create_1(type, init_1);
  }
  static BackgroundFetchFailEvent _create_1(type, init) => JS(
      'BackgroundFetchFailEvent',
      'new BackgroundFetchFailEvent(#,#)',
      type,
      init);

  List<BackgroundFetchSettledFetch>? get fetches native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BackgroundFetchFetch")
class BackgroundFetchFetch extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory BackgroundFetchFetch._() {
    throw new UnsupportedError("Not supported");
  }

  _Request? get request native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BackgroundFetchManager")
class BackgroundFetchManager extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory BackgroundFetchManager._() {
    throw new UnsupportedError("Not supported");
  }

  Future<BackgroundFetchRegistration> fetch(String id, Object requests,
      [Map? options]) {
    var options_dict = null;
    if (options != null) {
      options_dict = convertDartToNative_Dictionary(options);
    }
    return promiseToFuture<BackgroundFetchRegistration>(JS(
        "creates:BackgroundFetchRegistration;",
        "#.fetch(#, #, #)",
        this,
        id,
        requests,
        options_dict));
  }

  Future<BackgroundFetchRegistration> get(String id) =>
      promiseToFuture<BackgroundFetchRegistration>(
          JS("creates:BackgroundFetchRegistration;", "#.get(#)", this, id));

  Future<List<dynamic>> getIds() =>
      promiseToFuture<List<dynamic>>(JS("", "#.getIds()", this));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BackgroundFetchRegistration")
class BackgroundFetchRegistration extends EventTarget {
  // To suppress missing implicit constructor warnings.
  factory BackgroundFetchRegistration._() {
    throw new UnsupportedError("Not supported");
  }

  int? get downloadTotal native;

  int? get downloaded native;

  String? get id native;

  String? get title native;

  int? get totalDownloadSize native;

  int? get uploadTotal native;

  int? get uploaded native;

  Future<bool> abort() => promiseToFuture<bool>(JS("", "#.abort()", this));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BackgroundFetchSettledFetch")
class BackgroundFetchSettledFetch extends BackgroundFetchFetch {
  // To suppress missing implicit constructor warnings.
  factory BackgroundFetchSettledFetch._() {
    throw new UnsupportedError("Not supported");
  }

  factory BackgroundFetchSettledFetch(_Request request, _Response response) {
    return BackgroundFetchSettledFetch._create_1(request, response);
  }
  static BackgroundFetchSettledFetch _create_1(request, response) => JS(
      'BackgroundFetchSettledFetch',
      'new BackgroundFetchSettledFetch(#,#)',
      request,
      response);

  _Response? get response native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BackgroundFetchedEvent")
class BackgroundFetchedEvent extends BackgroundFetchEvent {
  // To suppress missing implicit constructor warnings.
  factory BackgroundFetchedEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory BackgroundFetchedEvent(String type, Map init) {
    var init_1 = convertDartToNative_Dictionary(init);
    return BackgroundFetchedEvent._create_1(type, init_1);
  }
  static BackgroundFetchedEvent _create_1(type, init) => JS(
      'BackgroundFetchedEvent', 'new BackgroundFetchedEvent(#,#)', type, init);

  List<BackgroundFetchSettledFetch>? get fetches native;

  Future updateUI(String title) =>
      promiseToFuture(JS("", "#.updateUI(#)", this, title));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#barprop
@deprecated // standard
@Native("BarProp")
class BarProp extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory BarProp._() {
    throw new UnsupportedError("Not supported");
  }

  bool? get visible native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BarcodeDetector")
class BarcodeDetector extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory BarcodeDetector._() {
    throw new UnsupportedError("Not supported");
  }

  factory BarcodeDetector() {
    return BarcodeDetector._create_1();
  }
  static BarcodeDetector _create_1() =>
      JS('BarcodeDetector', 'new BarcodeDetector()');

  Future<List<dynamic>> detect(/*ImageBitmapSource*/ image) =>
      promiseToFuture<List<dynamic>>(JS("", "#.detect(#)", this, image));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLBaseElement")
class BaseElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory BaseElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory BaseElement() => JS<BaseElement>(
      'returns:BaseElement;creates:BaseElement;new:true',
      '#.createElement(#)',
      document,
      "base");
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  BaseElement.created() : super.created();

  String get href native;

  set href(String value) native;

  String get target native;

  set target(String value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BatteryManager")
class BatteryManager extends EventTarget {
  // To suppress missing implicit constructor warnings.
  factory BatteryManager._() {
    throw new UnsupportedError("Not supported");
  }

  bool? get charging native;

  num? get chargingTime native;

  num? get dischargingTime native;

  num? get level native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BeforeInstallPromptEvent")
class BeforeInstallPromptEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory BeforeInstallPromptEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory BeforeInstallPromptEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return BeforeInstallPromptEvent._create_1(type, eventInitDict_1);
    }
    return BeforeInstallPromptEvent._create_2(type);
  }
  static BeforeInstallPromptEvent _create_1(type, eventInitDict) => JS(
      'BeforeInstallPromptEvent',
      'new BeforeInstallPromptEvent(#,#)',
      type,
      eventInitDict);
  static BeforeInstallPromptEvent _create_2(type) =>
      JS('BeforeInstallPromptEvent', 'new BeforeInstallPromptEvent(#)', type);

  List<String>? get platforms native;

  Future<Map<String, dynamic>?> get userChoice =>
      promiseToFutureAsMap(JS("", "#.userChoice", this));

  Future prompt() => promiseToFuture(JS("", "#.prompt()", this));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BeforeUnloadEvent")
class BeforeUnloadEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory BeforeUnloadEvent._() {
    throw new UnsupportedError("Not supported");
  }

  // Shadowing definition.

  String? get returnValue native;

  set returnValue(String? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Blob")
class Blob extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory Blob._() {
    throw new UnsupportedError("Not supported");
  }

  int get size native;

  String get type native;

  Blob slice([int? start, int? end, String? contentType]) native;

  factory Blob(List blobParts, [String? type, String? endings]) {
    // TODO: validate that blobParts is a JS Array and convert if not.
    // TODO: any coercions on the elements of blobParts, e.g. coerce a typed
    // array to ArrayBuffer if it is a total view.
    if (type == null && endings == null) {
      return _create_1(blobParts);
    }
    var bag = _create_bag();
    if (type != null) _bag_set(bag, 'type', type);
    if (endings != null) _bag_set(bag, 'endings', endings);
    return _create_2(blobParts, bag);
  }

  static _create_1(parts) => JS('Blob', 'new self.Blob(#)', parts);
  static _create_2(parts, bag) => JS('Blob', 'new self.Blob(#, #)', parts, bag);

  static _create_bag() => JS('var', '{}');
  static _bag_set(bag, key, value) {
    JS('void', '#[#] = #', bag, key, value);
  }
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

typedef void BlobCallback(Blob? blob);
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BlobEvent")
class BlobEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory BlobEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory BlobEvent(String type, Map eventInitDict) {
    var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
    return BlobEvent._create_1(type, eventInitDict_1);
  }
  static BlobEvent _create_1(type, eventInitDict) =>
      JS('BlobEvent', 'new BlobEvent(#,#)', type, eventInitDict);

  Blob? get data native;

  num? get timecode native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BluetoothRemoteGATTDescriptor")
class BluetoothRemoteGattDescriptor extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory BluetoothRemoteGattDescriptor._() {
    throw new UnsupportedError("Not supported");
  }

  _BluetoothRemoteGATTCharacteristic? get characteristic native;

  String? get uuid native;

  ByteData? get value native;

  Future readValue() => promiseToFuture(JS("", "#.readValue()", this));

  Future writeValue(/*BufferSource*/ value) =>
      promiseToFuture(JS("", "#.writeValue(#)", this, value));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Body")
class Body extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory Body._() {
    throw new UnsupportedError("Not supported");
  }

  bool? get bodyUsed native;

  Future arrayBuffer() => promiseToFuture(JS("", "#.arrayBuffer()", this));

  Future<Blob> blob() =>
      promiseToFuture<Blob>(JS("creates:Blob;", "#.blob()", this));

  Future<FormData> formData() =>
      promiseToFuture<FormData>(JS("creates:FormData;", "#.formData()", this));

  Future json() => promiseToFuture(JS("", "#.json()", this));

  Future<String> text() => promiseToFuture<String>(JS("", "#.text()", this));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLBodyElement")
class BodyElement extends HtmlElement implements WindowEventHandlers {
  // To suppress missing implicit constructor warnings.
  factory BodyElement._() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Static factory designed to expose `blur` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> blurEvent =
      const EventStreamProvider<Event>('blur');

  /**
   * Static factory designed to expose `error` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> errorEvent =
      const EventStreamProvider<Event>('error');

  /**
   * Static factory designed to expose `focus` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> focusEvent =
      const EventStreamProvider<Event>('focus');

  /**
   * Static factory designed to expose `hashchange` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> hashChangeEvent =
      const EventStreamProvider<Event>('hashchange');

  /**
   * Static factory designed to expose `load` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> loadEvent =
      const EventStreamProvider<Event>('load');

  /**
   * Static factory designed to expose `message` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MessageEvent> messageEvent =
      const EventStreamProvider<MessageEvent>('message');

  /**
   * Static factory designed to expose `offline` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> offlineEvent =
      const EventStreamProvider<Event>('offline');

  /**
   * Static factory designed to expose `online` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> onlineEvent =
      const EventStreamProvider<Event>('online');

  /**
   * Static factory designed to expose `popstate` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<PopStateEvent> popStateEvent =
      const EventStreamProvider<PopStateEvent>('popstate');

  /**
   * Static factory designed to expose `resize` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> resizeEvent =
      const EventStreamProvider<Event>('resize');

  static const EventStreamProvider<Event> scrollEvent =
      const EventStreamProvider<Event>('scroll');

  /**
   * Static factory designed to expose `storage` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<StorageEvent> storageEvent =
      const EventStreamProvider<StorageEvent>('storage');

  /**
   * Static factory designed to expose `unload` events to event
   * handlers that are not necessarily instances of [BodyElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> unloadEvent =
      const EventStreamProvider<Event>('unload');

  factory BodyElement() => JS<BodyElement>(
      'returns:BodyElement;creates:BodyElement;new:true',
      '#.createElement(#)',
      document,
      "body");
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  BodyElement.created() : super.created();

  /// Stream of `blur` events handled by this [BodyElement].
  ElementStream<Event> get onBlur => blurEvent.forElement(this);

  /// Stream of `error` events handled by this [BodyElement].
  ElementStream<Event> get onError => errorEvent.forElement(this);

  /// Stream of `focus` events handled by this [BodyElement].
  ElementStream<Event> get onFocus => focusEvent.forElement(this);

  /// Stream of `hashchange` events handled by this [BodyElement].
  ElementStream<Event> get onHashChange => hashChangeEvent.forElement(this);

  /// Stream of `load` events handled by this [BodyElement].
  ElementStream<Event> get onLoad => loadEvent.forElement(this);

  /// Stream of `message` events handled by this [BodyElement].
  ElementStream<MessageEvent> get onMessage => messageEvent.forElement(this);

  /// Stream of `offline` events handled by this [BodyElement].
  ElementStream<Event> get onOffline => offlineEvent.forElement(this);

  /// Stream of `online` events handled by this [BodyElement].
  ElementStream<Event> get onOnline => onlineEvent.forElement(this);

  /// Stream of `popstate` events handled by this [BodyElement].
  ElementStream<PopStateEvent> get onPopState => popStateEvent.forElement(this);

  /// Stream of `resize` events handled by this [BodyElement].
  ElementStream<Event> get onResize => resizeEvent.forElement(this);

  ElementStream<Event> get onScroll => scrollEvent.forElement(this);

  /// Stream of `storage` events handled by this [BodyElement].
  ElementStream<StorageEvent> get onStorage => storageEvent.forElement(this);

  /// Stream of `unload` events handled by this [BodyElement].
  ElementStream<Event> get onUnload => unloadEvent.forElement(this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BroadcastChannel")
class BroadcastChannel extends EventTarget {
  // To suppress missing implicit constructor warnings.
  factory BroadcastChannel._() {
    throw new UnsupportedError("Not supported");
  }

  static const EventStreamProvider<MessageEvent> messageEvent =
      const EventStreamProvider<MessageEvent>('message');

  factory BroadcastChannel(String name) {
    return BroadcastChannel._create_1(name);
  }
  static BroadcastChannel _create_1(name) =>
      JS('BroadcastChannel', 'new BroadcastChannel(#)', name);

  String? get name native;

  void close() native;

  void postMessage(Object message) native;

  Stream<MessageEvent> get onMessage => messageEvent.forTarget(this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("BudgetState")
class BudgetState extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory BudgetState._() {
    throw new UnsupportedError("Not supported");
  }

  num? get budgetAt native;

  int? get time native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLButtonElement")
class ButtonElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory ButtonElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory ButtonElement() => JS<ButtonElement>(
      'returns:ButtonElement;creates:ButtonElement;new:true',
      '#.createElement(#)',
      document,
      "button");
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  ButtonElement.created() : super.created();

  bool get autofocus native;

  set autofocus(bool value) native;

  bool get disabled native;

  set disabled(bool value) native;

  FormElement? get form native;

  String? get formAction native;

  set formAction(String? value) native;

  String? get formEnctype native;

  set formEnctype(String? value) native;

  String? get formMethod native;

  set formMethod(String? value) native;

  bool get formNoValidate native;

  set formNoValidate(bool value) native;

  String get formTarget native;

  set formTarget(String value) native;

  @Unstable()
  @Returns('NodeList')
  @Creates('NodeList')
  List<Node>? get labels native;

  String get name native;

  set name(String value) native;

  String get type native;

  set type(String value) native;

  String get validationMessage native;

  ValidityState get validity native;

  String get value native;

  set value(String value) native;

  bool get willValidate native;

  bool checkValidity() native;

  bool reportValidity() native;

  void setCustomValidity(String error) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// http://dom.spec.whatwg.org/#cdatasection
@deprecated // deprecated
@Native("CDATASection")
class CDataSection extends Text {
  // To suppress missing implicit constructor warnings.
  factory CDataSection._() {
    throw new UnsupportedError("Not supported");
  }
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CacheStorage")
class CacheStorage extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CacheStorage._() {
    throw new UnsupportedError("Not supported");
  }

  Future delete(String cacheName) =>
      promiseToFuture(JS("", "#.delete(#)", this, cacheName));

  Future has(String cacheName) =>
      promiseToFuture(JS("", "#.has(#)", this, cacheName));

  Future keys() => promiseToFuture(JS("", "#.keys()", this));

  Future match(/*RequestInfo*/ request, [Map? options]) {
    var options_dict = null;
    if (options != null) {
      options_dict = convertDartToNative_Dictionary(options);
    }
    return promiseToFuture(
        JS("creates:_Response;", "#.match(#, #)", this, request, options_dict));
  }

  Future open(String cacheName) =>
      promiseToFuture(JS("creates:_Cache;", "#.open(#)", this, cacheName));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CanMakePaymentEvent")
class CanMakePaymentEvent extends ExtendableEvent {
  // To suppress missing implicit constructor warnings.
  factory CanMakePaymentEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory CanMakePaymentEvent(String type, Map eventInitDict) {
    var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
    return CanMakePaymentEvent._create_1(type, eventInitDict_1);
  }
  static CanMakePaymentEvent _create_1(type, eventInitDict) => JS(
      'CanMakePaymentEvent',
      'new CanMakePaymentEvent(#,#)',
      type,
      eventInitDict);

  List? get methodData native;

  List? get modifiers native;

  String? get paymentRequestOrigin native;

  String? get topLevelOrigin native;

  void respondWith(Future canMakePaymentResponse) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CanvasCaptureMediaStreamTrack")
class CanvasCaptureMediaStreamTrack extends MediaStreamTrack {
  // To suppress missing implicit constructor warnings.
  factory CanvasCaptureMediaStreamTrack._() {
    throw new UnsupportedError("Not supported");
  }

  CanvasElement? get canvas native;

  void requestFrame() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLCanvasElement")
class CanvasElement extends HtmlElement implements CanvasImageSource {
  // To suppress missing implicit constructor warnings.
  factory CanvasElement._() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Static factory designed to expose `webglcontextlost` events to event
   * handlers that are not necessarily instances of [CanvasElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<gl.ContextEvent> webGlContextLostEvent =
      const EventStreamProvider<gl.ContextEvent>('webglcontextlost');

  /**
   * Static factory designed to expose `webglcontextrestored` events to event
   * handlers that are not necessarily instances of [CanvasElement].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<gl.ContextEvent> webGlContextRestoredEvent =
      const EventStreamProvider<gl.ContextEvent>('webglcontextrestored');

  factory CanvasElement({int? width, int? height}) {
    CanvasElement e = JS<CanvasElement>(
        'returns:CanvasElement;creates:CanvasElement;new:true',
        '#.createElement(#)',
        document,
        "canvas");
    if (width != null) e.width = width;
    if (height != null) e.height = height;
    return e;
  }
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  CanvasElement.created() : super.created();

  /// The height of this canvas element in CSS pixels.

  int? get height native;

  set height(int? value) native;

  /// The width of this canvas element in CSS pixels.

  int? get width native;

  set width(int? value) native;

  MediaStream captureStream([num? frameRate]) native;

  @Creates('CanvasRenderingContext2D|RenderingContext|RenderingContext2')
  @Returns('CanvasRenderingContext2D|RenderingContext|RenderingContext2|Null')
  Object? getContext(String contextId, [Map? attributes]) {
    if (attributes != null) {
      var attributes_1 = convertDartToNative_Dictionary(attributes);
      return _getContext_1(contextId, attributes_1);
    }
    return _getContext_2(contextId);
  }

  @JSName('getContext')
  @Creates('CanvasRenderingContext2D|RenderingContext|RenderingContext2')
  @Returns('CanvasRenderingContext2D|RenderingContext|RenderingContext2|Null')
  Object? _getContext_1(contextId, attributes) native;
  @JSName('getContext')
  @Creates('CanvasRenderingContext2D|RenderingContext|RenderingContext2')
  @Returns('CanvasRenderingContext2D|RenderingContext|RenderingContext2|Null')
  Object? _getContext_2(contextId) native;

  @JSName('toDataURL')
  String _toDataUrl(String? type, [arguments_OR_quality]) native;

  OffscreenCanvas transferControlToOffscreen() native;

  /// Stream of `webglcontextlost` events handled by this [CanvasElement].
  ElementStream<gl.ContextEvent> get onWebGlContextLost =>
      webGlContextLostEvent.forElement(this);

  /// Stream of `webglcontextrestored` events handled by this [CanvasElement].
  ElementStream<gl.ContextEvent> get onWebGlContextRestored =>
      webGlContextRestoredEvent.forElement(this);

  /** An API for drawing on this canvas. */
  CanvasRenderingContext2D get context2D =>
      JS('Null|CanvasRenderingContext2D', '#.getContext(#)', this, '2d');

  /**
   * Returns a new Web GL context for this canvas.
   *
   * ## Other resources
   *
   * * [WebGL fundamentals](http://www.html5rocks.com/en/tutorials/webgl/webgl_fundamentals/)
   *   from HTML5Rocks.
   * * [WebGL homepage](http://get.webgl.org/).
   */
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.FIREFOX)
  gl.RenderingContext? getContext3d(
      {alpha: true,
      depth: true,
      stencil: false,
      antialias: true,
      premultipliedAlpha: true,
      preserveDrawingBuffer: false}) {
    var options = {
      'alpha': alpha,
      'depth': depth,
      'stencil': stencil,
      'antialias': antialias,
      'premultipliedAlpha': premultipliedAlpha,
      'preserveDrawingBuffer': preserveDrawingBuffer,
    };
    var context = getContext('webgl', options);
    if (context == null) {
      context = getContext('experimental-webgl', options);
    }
    return context as gl.RenderingContext?;
  }

  /**
   * Returns a data URI containing a representation of the image in the
   * format specified by type (defaults to 'image/png').
   *
   * Data Uri format is as follow
   * `data:[<MIME-type>][;charset=<encoding>][;base64],<data>`
   *
   * Optional parameter [quality] in the range of 0.0 and 1.0 can be used when
   * requesting [type] 'image/jpeg' or 'image/webp'. If [quality] is not passed
   * the default value is used. Note: the default value varies by browser.
   *
   * If the height or width of this canvas element is 0, then 'data:' is
   * returned, representing no data.
   *
   * If the type requested is not 'image/png', and the returned value is
   * 'data:image/png', then the requested type is not supported.
   *
   * Example usage:
   *
   *     CanvasElement canvas = new CanvasElement();
   *     var ctx = canvas.context2D
   *     ..fillStyle = "rgb(200,0,0)"
   *     ..fillRect(10, 10, 55, 50);
   *     var dataUrl = canvas.toDataUrl("image/jpeg", 0.95);
   *     // The Data Uri would look similar to
   *     // 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA
   *     // AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
   *     // 9TXL0Y4OHwAAAABJRU5ErkJggg=='
   *     //Create a new image element from the data URI.
   *     var img = new ImageElement();
   *     img.src = dataUrl;
   *     document.body.children.add(img);
   *
   * See also:
   *
   * * [Data URI Scheme](http://en.wikipedia.org/wiki/Data_URI_scheme) from Wikipedia.
   *
   * * [HTMLCanvasElement](https://developer.mozilla.org/en-US/docs/DOM/HTMLCanvasElement) from MDN.
   *
   * * [toDataUrl](http://dev.w3.org/html5/spec/the-canvas-element.html#dom-canvas-todataurl) from W3C.
   */
  String toDataUrl([String type = 'image/png', num? quality]) =>
      _toDataUrl(type, quality);

  @JSName('toBlob')
  void _toBlob(BlobCallback callback, [String? type, Object? arguments]) native;

  Future<Blob> toBlob([String? type, Object? arguments]) {
    var completer = new Completer<Blob>();
    _toBlob((value) {
      completer.complete(value);
    }, type, arguments);
    return completer.future;
  }
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * An opaque canvas object representing a gradient.
 *
 * Created by calling the methods
 * [CanvasRenderingContext2D.createLinearGradient] or
 * [CanvasRenderingContext2D.createRadialGradient] on a
 * [CanvasRenderingContext2D] object.
 *
 * Example usage:
 *
 *     var canvas = new CanvasElement(width: 600, height: 600);
 *     var ctx = canvas.context2D;
 *     ctx.clearRect(0, 0, 600, 600);
 *     ctx.save();
 *     // Create radial gradient.
 *     CanvasGradient gradient = ctx.createRadialGradient(0, 0, 0, 0, 0, 600);
 *     gradient.addColorStop(0, '#000');
 *     gradient.addColorStop(1, 'rgb(255, 255, 255)');
 *     // Assign gradients to fill.
 *     ctx.fillStyle = gradient;
 *     // Draw a rectangle with a gradient fill.
 *     ctx.fillRect(0, 0, 600, 600);
 *     ctx.save();
 *     document.body.children.add(canvas);
 *
 * See also:
 *
 * * [CanvasGradient](https://developer.mozilla.org/en-US/docs/DOM/CanvasGradient) from MDN.
 * * [CanvasGradient](https://html.spec.whatwg.org/multipage/scripting.html#canvasgradient)
 *   from WHATWG.
 * * [CanvasGradient](http://www.w3.org/TR/2010/WD-2dcontext-20100304/#canvasgradient) from W3C.
 */
@Native("CanvasGradient")
class CanvasGradient extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CanvasGradient._() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Adds a color stop to this gradient at the offset.
   *
   * The [offset] can range between 0.0 and 1.0.
   *
   * See also:
   *
   * * [Multiple Color Stops](https://developer.mozilla.org/en-US/docs/CSS/linear-gradient#Gradient_with_multiple_color_stops) from MDN.
   */
  void addColorStop(num offset, String color) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * An opaque object representing a pattern of image, canvas, or video.
 *
 * Created by calling [CanvasRenderingContext2D.createPattern] on a
 * [CanvasRenderingContext2D] object.
 *
 * Example usage:
 *
 *     var canvas = new CanvasElement(width: 600, height: 600);
 *     var ctx = canvas.context2D;
 *     var img = new ImageElement();
 *     // Image src needs to be loaded before pattern is applied.
 *     img.onLoad.listen((event) {
 *       // When the image is loaded, create a pattern
 *       // from the ImageElement.
 *       CanvasPattern pattern = ctx.createPattern(img, 'repeat');
 *       ctx.rect(0, 0, canvas.width, canvas.height);
 *       ctx.fillStyle = pattern;
 *       ctx.fill();
 *     });
 *     img.src = "images/foo.jpg";
 *     document.body.children.add(canvas);
 *
 * See also:
 * * [CanvasPattern](https://developer.mozilla.org/en-US/docs/DOM/CanvasPattern) from MDN.
 * * [CanvasPattern](https://html.spec.whatwg.org/multipage/scripting.html#canvaspattern)
 *   from WHATWG.
 * * [CanvasPattern](http://www.w3.org/TR/2010/WD-2dcontext-20100304/#canvaspattern) from W3C.
 */
@Native("CanvasPattern")
class CanvasPattern extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CanvasPattern._() {
    throw new UnsupportedError("Not supported");
  }

  void setTransform(Matrix transform) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

abstract class CanvasRenderingContext {
  CanvasElement get canvas;
}

@Native("CanvasRenderingContext2D")
class CanvasRenderingContext2D extends Interceptor
    implements CanvasRenderingContext {
  // To suppress missing implicit constructor warnings.
  factory CanvasRenderingContext2D._() {
    throw new UnsupportedError("Not supported");
  }

  CanvasElement get canvas native;

  Matrix? get currentTransform native;

  set currentTransform(Matrix? value) native;

  String? get direction native;

  set direction(String? value) native;

  @Creates('String|CanvasGradient|CanvasPattern')
  @Returns('String|CanvasGradient|CanvasPattern')
  Object? get fillStyle native;

  set fillStyle(Object? value) native;

  String? get filter native;

  set filter(String? value) native;

  String get font native;

  set font(String value) native;

  num get globalAlpha native;

  set globalAlpha(num value) native;

  String get globalCompositeOperation native;

  set globalCompositeOperation(String value) native;

  /**
   * Whether images and patterns on this canvas will be smoothed when this
   * canvas is scaled.
   *
   * ## Other resources
   *
   * * [Image
   *   smoothing](https://html.spec.whatwg.org/multipage/scripting.html#image-smoothing)
   *   from WHATWG.
   */

  bool? get imageSmoothingEnabled native;

  set imageSmoothingEnabled(bool? value) native;

  String? get imageSmoothingQuality native;

  set imageSmoothingQuality(String? value) native;

  String get lineCap native;

  set lineCap(String value) native;

  String get lineJoin native;

  set lineJoin(String value) native;

  num get lineWidth native;

  set lineWidth(num value) native;

  num get miterLimit native;

  set miterLimit(num value) native;

  num get shadowBlur native;

  set shadowBlur(num value) native;

  String get shadowColor native;

  set shadowColor(String value) native;

  num get shadowOffsetX native;

  set shadowOffsetX(num value) native;

  num get shadowOffsetY native;

  set shadowOffsetY(num value) native;

  @Creates('String|CanvasGradient|CanvasPattern')
  @Returns('String|CanvasGradient|CanvasPattern')
  Object? get strokeStyle native;

  set strokeStyle(Object? value) native;

  String get textAlign native;

  set textAlign(String value) native;

  String get textBaseline native;

  set textBaseline(String value) native;

  void addHitRegion([Map? options]) {
    if (options != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      _addHitRegion_1(options_1);
      return;
    }
    _addHitRegion_2();
    return;
  }

  @JSName('addHitRegion')
  void _addHitRegion_1(options) native;
  @JSName('addHitRegion')
  void _addHitRegion_2() native;

  void beginPath() native;

  void clearHitRegions() native;

  void clearRect(num x, num y, num width, num height) native;

  void clip([path_OR_winding, String? winding]) native;

  @Creates('ImageData|=Object')
  ImageData createImageData(data_OR_imagedata_OR_sw,
      [int? sh_OR_sw,
      imageDataColorSettings_OR_sh,
      Map? imageDataColorSettings]) {
    if ((data_OR_imagedata_OR_sw is ImageData) &&
        sh_OR_sw == null &&
        imageDataColorSettings_OR_sh == null &&
        imageDataColorSettings == null) {
      var imagedata_1 = convertDartToNative_ImageData(data_OR_imagedata_OR_sw);
      return convertNativeToDart_ImageData(_createImageData_1(imagedata_1));
    }
    if (sh_OR_sw != null &&
        (data_OR_imagedata_OR_sw is int) &&
        imageDataColorSettings_OR_sh == null &&
        imageDataColorSettings == null) {
      return convertNativeToDart_ImageData(
          _createImageData_2(data_OR_imagedata_OR_sw, sh_OR_sw));
    }
    if ((imageDataColorSettings_OR_sh is Map) &&
        sh_OR_sw != null &&
        (data_OR_imagedata_OR_sw is int) &&
        imageDataColorSettings == null) {
      var imageDataColorSettings_1 =
          convertDartToNative_Dictionary(imageDataColorSettings_OR_sh);
      return convertNativeToDart_ImageData(_createImageData_3(
          data_OR_imagedata_OR_sw, sh_OR_sw, imageDataColorSettings_1));
    }
    if ((imageDataColorSettings_OR_sh is int) &&
        sh_OR_sw != null &&
        data_OR_imagedata_OR_sw != null &&
        imageDataColorSettings == null) {
      return convertNativeToDart_ImageData(_createImageData_4(
          data_OR_imagedata_OR_sw, sh_OR_sw, imageDataColorSettings_OR_sh));
    }
    if (imageDataColorSettings != null &&
        (imageDataColorSettings_OR_sh is int) &&
        sh_OR_sw != null &&
        data_OR_imagedata_OR_sw != null) {
      var imageDataColorSettings_1 =
          convertDartToNative_Dictionary(imageDataColorSettings);
      return convertNativeToDart_ImageData(_createImageData_5(
          data_OR_imagedata_OR_sw,
          sh_OR_sw,
          imageDataColorSettings_OR_sh,
          imageDataColorSettings_1));
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }

  @JSName('createImageData')
  @Creates('ImageData|=Object')
  _createImageData_1(imagedata) native;
  @JSName('createImageData')
  @Creates('ImageData|=Object')
  _createImageData_2(int sw, sh) native;
  @JSName('createImageData')
  @Creates('ImageData|=Object')
  _createImageData_3(int sw, sh, imageDataColorSettings) native;
  @JSName('createImageData')
  @Creates('ImageData|=Object')
  _createImageData_4(data, sw, int? sh) native;
  @JSName('createImageData')
  @Creates('ImageData|=Object')
  _createImageData_5(data, sw, int? sh, imageDataColorSettings) native;

  CanvasGradient createLinearGradient(num x0, num y0, num x1, num y1) native;

  CanvasPattern? createPattern(Object image, String repetitionType) native;

  CanvasGradient createRadialGradient(
      num x0, num y0, num r0, num x1, num y1, num r1) native;

  void drawFocusIfNeeded(element_OR_path, [Element? element]) native;

  void fill([path_OR_winding, String? winding]) native;

  void fillRect(num x, num y, num width, num height) native;

  Map getContextAttributes() {
    return convertNativeToDart_Dictionary(_getContextAttributes_1())!;
  }

  @JSName('getContextAttributes')
  _getContextAttributes_1() native;

  @Creates('ImageData|=Object')
  ImageData getImageData(int sx, int sy, int sw, int sh) {
    return convertNativeToDart_ImageData(_getImageData_1(sx, sy, sw, sh));
  }

  @JSName('getImageData')
  @Creates('ImageData|=Object')
  _getImageData_1(sx, sy, sw, sh) native;

  @JSName('getLineDash')
  List<num> _getLineDash() native;

  bool isContextLost() native;

  bool isPointInPath(path_OR_x, num x_OR_y, [winding_OR_y, String? winding])
      native;

  bool isPointInStroke(path_OR_x, num x_OR_y, [num? y]) native;

  TextMetrics measureText(String text) native;

  void putImageData(ImageData imagedata, int dx, int dy,
      [int? dirtyX, int? dirtyY, int? dirtyWidth, int? dirtyHeight]) {
    if (dirtyX == null &&
        dirtyY == null &&
        dirtyWidth == null &&
        dirtyHeight == null) {
      var imagedata_1 = convertDartToNative_ImageData(imagedata);
      _putImageData_1(imagedata_1, dx, dy);
      return;
    }
    if (dirtyHeight != null &&
        dirtyWidth != null &&
        dirtyY != null &&
        dirtyX != null) {
      var imagedata_1 = convertDartToNative_ImageData(imagedata);
      _putImageData_2(
          imagedata_1, dx, dy, dirtyX, dirtyY, dirtyWidth, dirtyHeight);
      return;
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }

  @JSName('putImageData')
  void _putImageData_1(imagedata, dx, dy) native;
  @JSName('putImageData')
  void _putImageData_2(
      imagedata, dx, dy, dirtyX, dirtyY, dirtyWidth, dirtyHeight) native;

  void removeHitRegion(String id) native;

  void resetTransform() native;

  void restore() native;

  void rotate(num angle) native;

  void save() native;

  void scale(num x, num y) native;

  void scrollPathIntoView([Path2D? path]) native;

  void setTransform(num a, num b, num c, num d, num e, num f) native;

  void stroke([Path2D? path]) native;

  void strokeRect(num x, num y, num width, num height) native;

  void strokeText(String text, num x, num y, [num? maxWidth]) native;

  void transform(num a, num b, num c, num d, num e, num f) native;

  void translate(num x, num y) native;

  // From CanvasPath

  @JSName('arc')
  void _arc(num x, num y, num radius, num startAngle, num endAngle,
      bool? anticlockwise) native;

  void arcTo(num x1, num y1, num x2, num y2, num radius) native;

  void bezierCurveTo(num cp1x, num cp1y, num cp2x, num cp2y, num x, num y)
      native;

  void closePath() native;

  void ellipse(num x, num y, num radiusX, num radiusY, num rotation,
      num startAngle, num endAngle, bool? anticlockwise) native;

  void lineTo(num x, num y) native;

  void moveTo(num x, num y) native;

  void quadraticCurveTo(num cpx, num cpy, num x, num y) native;

  void rect(num x, num y, num width, num height) native;

  ImageData createImageDataFromImageData(ImageData imagedata) =>
      JS('ImageData', '#.createImageData(#)', this, imagedata);

  /**
   * Sets the color used inside shapes.
   * [r], [g], [b] are 0-255, [a] is 0-1.
   */
  void setFillColorRgb(int r, int g, int b, [num a = 1]) {
    this.fillStyle = 'rgba($r, $g, $b, $a)';
  }

  /**
   * Sets the color used inside shapes.
   * [h] is in degrees, 0-360.
   * [s], [l] are in percent, 0-100.
   * [a] is 0-1.
   */
  void setFillColorHsl(int h, num s, num l, [num a = 1]) {
    this.fillStyle = 'hsla($h, $s%, $l%, $a)';
  }

  /**
   * Sets the color used for stroking shapes.
   * [r], [g], [b] are 0-255, [a] is 0-1.
   */
  void setStrokeColorRgb(int r, int g, int b, [num a = 1]) {
    this.strokeStyle = 'rgba($r, $g, $b, $a)';
  }

  /**
   * Sets the color used for stroking shapes.
   * [h] is in degrees, 0-360.
   * [s], [l] are in percent, 0-100.
   * [a] is 0-1.
   */
  void setStrokeColorHsl(int h, num s, num l, [num a = 1]) {
    this.strokeStyle = 'hsla($h, $s%, $l%, $a)';
  }

  void arc(num x, num y, num radius, num startAngle, num endAngle,
      [bool anticlockwise = false]) {
    // TODO(terry): This should not be needed: dartbug.com/20939.
    JS('void', '#.arc(#, #, #, #, #, #)', this, x, y, radius, startAngle,
        endAngle, anticlockwise);
  }

  CanvasPattern createPatternFromImage(
          ImageElement image, String repetitionType) =>
      JS('CanvasPattern', '#.createPattern(#, #)', this, image, repetitionType);

  /**
   * Draws an image from a CanvasImageSource to an area of this canvas.
   *
   * The image will be drawn to an area of this canvas defined by
   * [destRect]. [sourceRect] defines the region of the source image that is
   * drawn.
   * If [sourceRect] is not provided, then
   * the entire rectangular image from [source] will be drawn to this context.
   *
   * If the image is larger than canvas
   * will allow, the image will be clipped to fit the available space.
   *
   *     CanvasElement canvas = new CanvasElement(width: 600, height: 600);
   *     CanvasRenderingContext2D ctx = canvas.context2D;
   *     ImageElement img = document.query('img');
   *     img.width = 100;
   *     img.height = 100;
   *
   *     // Scale the image to 20x20.
   *     ctx.drawImageToRect(img, new Rectangle(50, 50, 20, 20));
   *
   *     VideoElement video = document.query('video');
   *     video.width = 100;
   *     video.height = 100;
   *     // Take the middle 20x20 pixels from the video and stretch them.
   *     ctx.drawImageToRect(video, new Rectangle(50, 50, 100, 100),
   *         sourceRect: new Rectangle(40, 40, 20, 20));
   *
   *     // Draw the top 100x20 pixels from the otherCanvas.
   *     CanvasElement otherCanvas = document.query('canvas');
   *     ctx.drawImageToRect(otherCanvas, new Rectangle(0, 0, 100, 20),
   *         sourceRect: new Rectangle(0, 0, 100, 20));
   *
   * See also:
   *
   *   * [CanvasImageSource] for more information on what data is retrieved
   * from [source].
   *   * [drawImage](http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-drawimage)
   * from the WHATWG.
   */
  void drawImageToRect(CanvasImageSource source, Rectangle destRect,
      {Rectangle? sourceRect}) {
    if (sourceRect == null) {
      drawImageScaled(
          source, destRect.left, destRect.top, destRect.width, destRect.height);
    } else {
      drawImageScaledFromSource(
          source,
          sourceRect.left,
          sourceRect.top,
          sourceRect.width,
          sourceRect.height,
          destRect.left,
          destRect.top,
          destRect.width,
          destRect.height);
    }
  }

  /**
   * Draws an image from a CanvasImageSource to this canvas.
   *
   * The entire image from [source] will be drawn to this context with its top
   * left corner at the point ([destX], [destY]). If the image is
   * larger than canvas will allow, the image will be clipped to fit the
   * available space.
   *
   *     CanvasElement canvas = new CanvasElement(width: 600, height: 600);
   *     CanvasRenderingContext2D ctx = canvas.context2D;
   *     ImageElement img = document.query('img');
   *
   *     ctx.drawImage(img, 100, 100);
   *
   *     VideoElement video = document.query('video');
   *     ctx.drawImage(video, 0, 0);
   *
   *     CanvasElement otherCanvas = document.query('canvas');
   *     otherCanvas.width = 100;
   *     otherCanvas.height = 100;
   *     ctx.drawImage(otherCanvas, 590, 590); // will get clipped
   *
   * See also:
   *
   *   * [CanvasImageSource] for more information on what data is retrieved
   * from [source].
   *   * [drawImage](http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-drawimage)
   * from the WHATWG.
   */
  @JSName('drawImage')
  void drawImage(CanvasImageSource source, num destX, num destY) native;

  /**
   * Draws an image from a CanvasImageSource to an area of this canvas.
   *
   * The image will be drawn to this context with its top left corner at the
   * point ([destX], [destY]) and will be scaled to be [destWidth] wide and
   * [destHeight] tall.
   *
   * If the image is larger than canvas
   * will allow, the image will be clipped to fit the available space.
   *
   *     CanvasElement canvas = new CanvasElement(width: 600, height: 600);
   *     CanvasRenderingContext2D ctx = canvas.context2D;
   *     ImageElement img = document.query('img');
   *     img.width = 100;
   *     img.height = 100;
   *
   *     // Scale the image to 300x50 at the point (20, 20)
   *     ctx.drawImageScaled(img, 20, 20, 300, 50);
   *
   * See also:
   *
   *   * [CanvasImageSource] for more information on what data is retrieved
   * from [source].
   *   * [drawImage](http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-drawimage)
   * from the WHATWG.
   */
  @JSName('drawImage')
  void drawImageScaled(CanvasImageSource source, num destX, num destY,
      num destWidth, num destHeight) native;

  /**
   * Draws an image from a CanvasImageSource to an area of this canvas.
   *
   * The image is a region of [source] that is [sourceWidth] wide and
   * [destHeight] tall with top left corner at ([sourceX], [sourceY]).
   * The image will be drawn to this context with its top left corner at the
   * point ([destX], [destY]) and will be scaled to be [destWidth] wide and
   * [destHeight] tall.
   *
   * If the image is larger than canvas
   * will allow, the image will be clipped to fit the available space.
   *
   *     VideoElement video = document.query('video');
   *     video.width = 100;
   *     video.height = 100;
   *     // Take the middle 20x20 pixels from the video and stretch them.
   *     ctx.drawImageScaledFromSource(video, 40, 40, 20, 20, 50, 50, 100, 100);
   *
   *     // Draw the top 100x20 pixels from the otherCanvas to this one.
   *     CanvasElement otherCanvas = document.query('canvas');
   *     ctx.drawImageScaledFromSource(otherCanvas, 0, 0, 100, 20, 0, 0, 100, 20);
   *
   * See also:
   *
   *   * [CanvasImageSource] for more information on what data is retrieved
   * from [source].
   *   * [drawImage](http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-drawimage)
   * from the WHATWG.
   */
  @JSName('drawImage')
  void drawImageScaledFromSource(
      CanvasImageSource source,
      num sourceX,
      num sourceY,
      num sourceWidth,
      num sourceHeight,
      num destX,
      num destY,
      num destWidth,
      num destHeight) native;

  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  @SupportedBrowser(SupportedBrowser.IE, '11')
  @Unstable()
  // TODO(14316): Firefox has this functionality with mozDashOffset, but it
  // needs to be polyfilled.
  num get lineDashOffset =>
      JS('num', '#.lineDashOffset || #.webkitLineDashOffset', this, this);

  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  @SupportedBrowser(SupportedBrowser.IE, '11')
  @Unstable()
  // TODO(14316): Firefox has this functionality with mozDashOffset, but it
  // needs to be polyfilled.
  set lineDashOffset(num value) {
    JS(
        'void',
        'typeof #.lineDashOffset != "undefined" ? #.lineDashOffset = # : '
            '#.webkitLineDashOffset = #',
        this,
        this,
        value,
        this,
        value);
  }

  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  @SupportedBrowser(SupportedBrowser.IE, '11')
  @Unstable()
  List<num> getLineDash() {
    // TODO(14316): Firefox has this functionality with mozDash, but it's a bit
    // different.
    if (JS('bool', '!!#.getLineDash', this)) {
      return JS('List<num>', '#.getLineDash()', this);
    } else if (JS('bool', '!!#.webkitLineDash', this)) {
      return JS('List<num>', '#.webkitLineDash', this);
    }
    return [];
  }

  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  @SupportedBrowser(SupportedBrowser.IE, '11')
  @Unstable()
  void setLineDash(List<num> dash) {
    // TODO(14316): Firefox has this functionality with mozDash, but it's a bit
    // different.
    if (JS('bool', '!!#.setLineDash', this)) {
      JS('void', '#.setLineDash(#)', this, dash);
    } else if (JS('bool', '!!#.webkitLineDash', this)) {
      JS('void', '#.webkitLineDash = #', this, dash);
    }
  }

  /**
   * Draws text to the canvas.
   *
   * The text is drawn starting at coordinates ([x], [y]).
   * If [maxWidth] is provided and the [text] is computed to be wider than
   * [maxWidth], then the drawn text is scaled down horizontally to fit.
   *
   * The text uses the current [CanvasRenderingContext2D.font] property for font
   * options, such as typeface and size, and the current
   * [CanvasRenderingContext2D.fillStyle] for style options such as color.
   * The current [CanvasRenderingContext2D.textAlign] and
   * [CanvasRenderingContext2D.textBaseline] properties are also applied to the
   * drawn text.
   */
  void fillText(String text, num x, num y, [num? maxWidth]) {
    if (maxWidth != null) {
      JS('void', '#.fillText(#, #, #, #)', this, text, x, y, maxWidth);
    } else {
      JS('void', '#.fillText(#, #, #)', this, text, x, y);
    }
  }

  /** Deprecated always returns 1.0 */
  @deprecated
  double get backingStorePixelRatio => 1.0;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CharacterData")
class CharacterData extends Node
    implements NonDocumentTypeChildNode, ChildNode {
  // To suppress missing implicit constructor warnings.
  factory CharacterData._() {
    throw new UnsupportedError("Not supported");
  }

  String? get data native;

  set data(String? value) native;

  int? get length native;

  void appendData(String data) native;

  void deleteData(int offset, int count) native;

  void insertData(int offset, String data) native;

  void replaceData(int offset, int count, String data) native;

  String substringData(int offset, int count) native;

  // From ChildNode

  void after(Object nodes) native;

  void before(Object nodes) native;

  // From NonDocumentTypeChildNode

  Element? get nextElementSibling native;

  Element? get previousElementSibling native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

abstract class ChildNode extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory ChildNode._() {
    throw new UnsupportedError("Not supported");
  }

  void after(Object nodes);

  void before(Object nodes);

  void remove();
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Client")
class Client extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory Client._() {
    throw new UnsupportedError("Not supported");
  }

  String? get frameType native;

  String? get id native;

  String? get type native;

  String? get url native;

  void postMessage(Object message, [List<Object>? transfer]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Clients")
class Clients extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory Clients._() {
    throw new UnsupportedError("Not supported");
  }

  Future claim() => promiseToFuture(JS("", "#.claim()", this));

  Future get(String id) => promiseToFuture(JS("", "#.get(#)", this, id));

  Future<List<dynamic>> matchAll([Map? options]) {
    var options_dict = null;
    if (options != null) {
      options_dict = convertDartToNative_Dictionary(options);
    }
    return promiseToFuture<List<dynamic>>(
        JS("", "#.matchAll(#)", this, options_dict));
  }

  Future<WindowClient> openWindow(String url) => promiseToFuture<WindowClient>(
      JS("creates:WindowClient;", "#.openWindow(#)", this, url));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("ClipboardEvent")
class ClipboardEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory ClipboardEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory ClipboardEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return ClipboardEvent._create_1(type, eventInitDict_1);
    }
    return ClipboardEvent._create_2(type);
  }
  static ClipboardEvent _create_1(type, eventInitDict) =>
      JS('ClipboardEvent', 'new ClipboardEvent(#,#)', type, eventInitDict);
  static ClipboardEvent _create_2(type) =>
      JS('ClipboardEvent', 'new ClipboardEvent(#)', type);

  DataTransfer? get clipboardData native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CloseEvent")
class CloseEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory CloseEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory CloseEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return CloseEvent._create_1(type, eventInitDict_1);
    }
    return CloseEvent._create_2(type);
  }
  static CloseEvent _create_1(type, eventInitDict) =>
      JS('CloseEvent', 'new CloseEvent(#,#)', type, eventInitDict);
  static CloseEvent _create_2(type) =>
      JS('CloseEvent', 'new CloseEvent(#)', type);

  int? get code native;

  String? get reason native;

  bool? get wasClean native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Comment")
class Comment extends CharacterData {
  factory Comment([String? data]) {
    return JS('returns:Comment;depends:none;effects:none;new:true',
        '#.createComment(#)', document, data == null ? "" : data);
  }
  // To suppress missing implicit constructor warnings.
  factory Comment._() {
    throw new UnsupportedError("Not supported");
  }
}
// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

@Native("CompositionEvent")
class CompositionEvent extends UIEvent {
  factory CompositionEvent(String type,
      {bool canBubble: false,
      bool cancelable: false,
      Window? view,
      String? data,
      String? locale}) {
    if (view == null) {
      view = window;
    }
    CompositionEvent e =
        document._createEvent("CompositionEvent") as CompositionEvent;

    if (Device.isFirefox) {
      // Firefox requires the locale parameter that isn't supported elsewhere.
      JS('void', '#.initCompositionEvent(#, #, #, #, #, #)', e, type, canBubble,
          cancelable, view, data, locale);
    } else {
      e._initCompositionEvent(type, canBubble, cancelable, view, data);
    }

    return e;
  }

  factory CompositionEvent._(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return CompositionEvent._create_1(type, eventInitDict_1);
    }
    return CompositionEvent._create_2(type);
  }
  static CompositionEvent _create_1(type, eventInitDict) =>
      JS('CompositionEvent', 'new CompositionEvent(#,#)', type, eventInitDict);
  static CompositionEvent _create_2(type) =>
      JS('CompositionEvent', 'new CompositionEvent(#)', type);

  String? get data native;

  @JSName('initCompositionEvent')
  void _initCompositionEvent(String? type, bool? bubbles, bool? cancelable,
      Window? view, String? data) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@SupportedBrowser(SupportedBrowser.CHROME, '26')
@Native("HTMLContentElement")
class ContentElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory ContentElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory ContentElement() =>
      document.createElement("content") as ContentElement;
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  ContentElement.created() : super.created();

  /// Checks if this type is supported on the current platform.
  static bool get supported => Element.isTagSupported('content');

  String? get select native;

  set select(String? value) native;

  @Returns('NodeList')
  @Creates('NodeList')
  List<Node> getDistributedNodes() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CookieStore")
class CookieStore extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CookieStore._() {
    throw new UnsupportedError("Not supported");
  }

  Future getAll([Map? options]) {
    var options_dict = null;
    if (options != null) {
      options_dict = convertDartToNative_Dictionary(options);
    }
    return promiseToFuture(JS("", "#.getAll(#)", this, options_dict));
  }

  Future set(String name, String value, [Map? options]) {
    var options_dict = null;
    if (options != null) {
      options_dict = convertDartToNative_Dictionary(options);
    }
    return promiseToFuture(
        JS("", "#.set(#, #, #)", this, name, value, options_dict));
  }
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Coordinates")
class Coordinates extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory Coordinates._() {
    throw new UnsupportedError("Not supported");
  }

  num? get accuracy native;

  num? get altitude native;

  num? get altitudeAccuracy native;

  num? get heading native;

  num? get latitude native;

  num? get longitude native;

  num? get speed native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Credential")
class Credential extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory Credential._() {
    throw new UnsupportedError("Not supported");
  }

  String? get id native;

  String? get type native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CredentialUserData")
class CredentialUserData extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CredentialUserData._() {
    throw new UnsupportedError("Not supported");
  }

  @JSName('iconURL')
  String? get iconUrl native;

  String? get name native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CredentialsContainer")
class CredentialsContainer extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CredentialsContainer._() {
    throw new UnsupportedError("Not supported");
  }

  Future create([Map? options]) {
    var options_dict = null;
    if (options != null) {
      options_dict = convertDartToNative_Dictionary(options);
    }
    return promiseToFuture(
        JS("creates:Credential;", "#.create(#)", this, options_dict));
  }

  Future get([Map? options]) {
    var options_dict = null;
    if (options != null) {
      options_dict = convertDartToNative_Dictionary(options);
    }
    return promiseToFuture(
        JS("creates:Credential;", "#.get(#)", this, options_dict));
  }

  Future preventSilentAccess() =>
      promiseToFuture(JS("", "#.preventSilentAccess()", this));

  Future requireUserMediation() =>
      promiseToFuture(JS("", "#.requireUserMediation()", this));

  Future store(Credential credential) => promiseToFuture(
      JS("creates:Credential;", "#.store(#)", this, credential));
}
// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@SupportedBrowser(SupportedBrowser.CHROME)
@SupportedBrowser(SupportedBrowser.SAFARI)
@Native("Crypto")
class Crypto extends Interceptor {
  TypedData getRandomValues(TypedData array) {
    return _getRandomValues(array);
  }

  // To suppress missing implicit constructor warnings.
  factory Crypto._() {
    throw new UnsupportedError("Not supported");
  }

  /// Checks if this type is supported on the current platform.
  static bool get supported =>
      JS('bool', '!!(window.crypto && window.crypto.getRandomValues)');

  _SubtleCrypto? get subtle native;

  @JSName('getRandomValues')
  @Creates('TypedData')
  @Returns('TypedData|Null')
  TypedData _getRandomValues(TypedData array) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CryptoKey")
class CryptoKey extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CryptoKey._() {
    throw new UnsupportedError("Not supported");
  }

  @Creates('Null')
  Object? get algorithm native;

  bool? get extractable native;

  String? get type native;

  Object? get usages native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSS")
class Css extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory Css._() {
    throw new UnsupportedError("Not supported");
  }

  static _Worklet? get paintWorklet native;

  static CssUnitValue Hz(num value) native;

  static CssUnitValue ch(num value) native;

  static CssUnitValue cm(num value) native;

  static CssUnitValue deg(num value) native;

  static CssUnitValue dpcm(num value) native;

  static CssUnitValue dpi(num value) native;

  static CssUnitValue dppx(num value) native;

  static CssUnitValue em(num value) native;

  static String escape(String ident) native;

  static CssUnitValue ex(num value) native;

  static CssUnitValue fr(num value) native;

  static CssUnitValue grad(num value) native;

  @JSName('in')
  static CssUnitValue inch(num value) native;

  static CssUnitValue kHz(num value) native;

  static CssUnitValue mm(num value) native;

  static CssUnitValue ms(num value) native;

  static CssUnitValue number(num value) native;

  static CssUnitValue pc(num value) native;

  static CssUnitValue percent(num value) native;

  static CssUnitValue pt(num value) native;

  static CssUnitValue px(num value) native;

  static CssUnitValue rad(num value) native;

  static void registerProperty(Map descriptor) {
    var descriptor_1 = convertDartToNative_Dictionary(descriptor);
    _registerProperty_1(descriptor_1);
    return;
  }

  @JSName('registerProperty')
  static void _registerProperty_1(descriptor) native;

  static CssUnitValue rem(num value) native;

  static CssUnitValue s(num value) native;

  static bool supports(String property, String value) native;

  @JSName('supports')
  static bool supportsCondition(String conditionText) native;

  static CssUnitValue turn(num value) native;

  static CssUnitValue vh(num value) native;

  static CssUnitValue vmax(num value) native;

  static CssUnitValue vmin(num value) native;

  static CssUnitValue vw(num value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSCharsetRule")
class CssCharsetRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssCharsetRule._() {
    throw new UnsupportedError("Not supported");
  }

  String? get encoding native;

  set encoding(String? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSConditionRule")
class CssConditionRule extends CssGroupingRule {
  // To suppress missing implicit constructor warnings.
  factory CssConditionRule._() {
    throw new UnsupportedError("Not supported");
  }

  String? get conditionText native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSFontFaceRule")
class CssFontFaceRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssFontFaceRule._() {
    throw new UnsupportedError("Not supported");
  }

  CssStyleDeclaration? get style native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSGroupingRule")
class CssGroupingRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssGroupingRule._() {
    throw new UnsupportedError("Not supported");
  }

  @Returns('_CssRuleList')
  @Creates('_CssRuleList')
  List<CssRule>? get cssRules native;

  void deleteRule(int index) native;

  int insertRule(String rule, int index) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSImageValue")
class CssImageValue extends CssResourceValue {
  // To suppress missing implicit constructor warnings.
  factory CssImageValue._() {
    throw new UnsupportedError("Not supported");
  }

  num? get intrinsicHeight native;

  num? get intrinsicRatio native;

  num? get intrinsicWidth native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSImportRule")
class CssImportRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssImportRule._() {
    throw new UnsupportedError("Not supported");
  }

  String? get href native;

  MediaList? get media native;

  CssStyleSheet? get styleSheet native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSKeyframeRule,MozCSSKeyframeRule,WebKitCSSKeyframeRule")
class CssKeyframeRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssKeyframeRule._() {
    throw new UnsupportedError("Not supported");
  }

  String? get keyText native;

  set keyText(String? value) native;

  CssStyleDeclaration? get style native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSKeyframesRule,MozCSSKeyframesRule,WebKitCSSKeyframesRule")
class CssKeyframesRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssKeyframesRule._() {
    throw new UnsupportedError("Not supported");
  }

  @Returns('_CssRuleList')
  @Creates('_CssRuleList')
  List<CssRule>? get cssRules native;

  String? get name native;

  set name(String? value) native;

  CssKeyframeRule __getter__(int index) native;

  void appendRule(String rule) native;

  void deleteRule(String select) native;

  CssKeyframeRule? findRule(String select) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSKeywordValue")
class CssKeywordValue extends CssStyleValue {
  // To suppress missing implicit constructor warnings.
  factory CssKeywordValue._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssKeywordValue(String keyword) {
    return CssKeywordValue._create_1(keyword);
  }
  static CssKeywordValue _create_1(keyword) =>
      JS('CssKeywordValue', 'new CSSKeywordValue(#)', keyword);

  String? get value native;

  set value(String? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSMatrixComponent")
class CssMatrixComponent extends CssTransformComponent {
  // To suppress missing implicit constructor warnings.
  factory CssMatrixComponent._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssMatrixComponent(DomMatrixReadOnly matrix, [Map? options]) {
    if (options != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      return CssMatrixComponent._create_1(matrix, options_1);
    }
    return CssMatrixComponent._create_2(matrix);
  }
  static CssMatrixComponent _create_1(matrix, options) =>
      JS('CssMatrixComponent', 'new CSSMatrixComponent(#,#)', matrix, options);
  static CssMatrixComponent _create_2(matrix) =>
      JS('CssMatrixComponent', 'new CSSMatrixComponent(#)', matrix);

  DomMatrix? get matrix native;

  set matrix(DomMatrix? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSMediaRule")
class CssMediaRule extends CssConditionRule {
  // To suppress missing implicit constructor warnings.
  factory CssMediaRule._() {
    throw new UnsupportedError("Not supported");
  }

  MediaList? get media native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSNamespaceRule")
class CssNamespaceRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssNamespaceRule._() {
    throw new UnsupportedError("Not supported");
  }

  @JSName('namespaceURI')
  String? get namespaceUri native;

  String? get prefix native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSNumericValue")
class CssNumericValue extends CssStyleValue {
  // To suppress missing implicit constructor warnings.
  factory CssNumericValue._() {
    throw new UnsupportedError("Not supported");
  }

  CssNumericValue add(CssNumericValue value) native;

  CssNumericValue div(num value) native;

  CssNumericValue mul(num value) native;

  static CssNumericValue parse(String cssText) native;

  CssNumericValue sub(CssNumericValue value) native;

  CssNumericValue to(String unit) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSPageRule")
class CssPageRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssPageRule._() {
    throw new UnsupportedError("Not supported");
  }

  String? get selectorText native;

  set selectorText(String? value) native;

  CssStyleDeclaration? get style native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSPerspective")
class CssPerspective extends CssTransformComponent {
  // To suppress missing implicit constructor warnings.
  factory CssPerspective._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssPerspective(CssNumericValue length) {
    return CssPerspective._create_1(length);
  }
  static CssPerspective _create_1(length) =>
      JS('CssPerspective', 'new CSSPerspective(#)', length);

  CssNumericValue? get length native;

  set length(CssNumericValue? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSPositionValue")
class CssPositionValue extends CssStyleValue {
  // To suppress missing implicit constructor warnings.
  factory CssPositionValue._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssPositionValue(CssNumericValue x, CssNumericValue y) {
    return CssPositionValue._create_1(x, y);
  }
  static CssPositionValue _create_1(x, y) =>
      JS('CssPositionValue', 'new CSSPositionValue(#,#)', x, y);

  CssNumericValue? get x native;

  set x(CssNumericValue? value) native;

  CssNumericValue? get y native;

  set y(CssNumericValue? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSResourceValue")
class CssResourceValue extends CssStyleValue {
  // To suppress missing implicit constructor warnings.
  factory CssResourceValue._() {
    throw new UnsupportedError("Not supported");
  }

  String? get state native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSRotation")
class CssRotation extends CssTransformComponent {
  // To suppress missing implicit constructor warnings.
  factory CssRotation._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssRotation(angleValue_OR_x,
      [num? y, num? z, CssNumericValue? angle]) {
    if ((angleValue_OR_x is CssNumericValue) &&
        y == null &&
        z == null &&
        angle == null) {
      return CssRotation._create_1(angleValue_OR_x);
    }
    if ((angle is CssNumericValue) &&
        (z is num) &&
        (y is num) &&
        (angleValue_OR_x is num)) {
      return CssRotation._create_2(angleValue_OR_x, y, z, angle);
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }
  static CssRotation _create_1(angleValue_OR_x) =>
      JS('CssRotation', 'new CSSRotation(#)', angleValue_OR_x);
  static CssRotation _create_2(angleValue_OR_x, y, z, angle) => JS(
      'CssRotation', 'new CSSRotation(#,#,#,#)', angleValue_OR_x, y, z, angle);

  CssNumericValue? get angle native;

  set angle(CssNumericValue? value) native;

  num? get x native;

  set x(num? value) native;

  num? get y native;

  set y(num? value) native;

  num? get z native;

  set z(num? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSRule")
class CssRule extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CssRule._() {
    throw new UnsupportedError("Not supported");
  }

  static const int CHARSET_RULE = 2;

  static const int FONT_FACE_RULE = 5;

  static const int IMPORT_RULE = 3;

  static const int KEYFRAMES_RULE = 7;

  static const int KEYFRAME_RULE = 8;

  static const int MEDIA_RULE = 4;

  static const int NAMESPACE_RULE = 10;

  static const int PAGE_RULE = 6;

  static const int STYLE_RULE = 1;

  static const int SUPPORTS_RULE = 12;

  static const int VIEWPORT_RULE = 15;

  String? get cssText native;

  set cssText(String? value) native;

  CssRule? get parentRule native;

  CssStyleSheet? get parentStyleSheet native;

  int? get type native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSScale")
class CssScale extends CssTransformComponent {
  // To suppress missing implicit constructor warnings.
  factory CssScale._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssScale(num x, num y, [num? z]) {
    if ((y is num) && (x is num) && z == null) {
      return CssScale._create_1(x, y);
    }
    if ((z is num) && (y is num) && (x is num)) {
      return CssScale._create_2(x, y, z);
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }
  static CssScale _create_1(x, y) => JS('CssScale', 'new CSSScale(#,#)', x, y);
  static CssScale _create_2(x, y, z) =>
      JS('CssScale', 'new CSSScale(#,#,#)', x, y, z);

  num? get x native;

  set x(num? value) native;

  num? get y native;

  set y(num? value) native;

  num? get z native;

  set z(num? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSSkew")
class CssSkew extends CssTransformComponent {
  // To suppress missing implicit constructor warnings.
  factory CssSkew._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssSkew(CssNumericValue ax, CssNumericValue ay) {
    return CssSkew._create_1(ax, ay);
  }
  static CssSkew _create_1(ax, ay) => JS('CssSkew', 'new CSSSkew(#,#)', ax, ay);

  CssNumericValue? get ax native;

  set ax(CssNumericValue? value) native;

  CssNumericValue? get ay native;

  set ay(CssNumericValue? value) native;
}

// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: DO NOT EDIT THIS TEMPLATE FILE.
// The template file was generated by scripts/css_code_generator.py

// Source of CSS properties:
//   CSSPropertyNames.in

@Native("CSSStyleDeclaration,MSStyleCSSProperties,CSS2Properties")
class CssStyleDeclaration extends Interceptor with CssStyleDeclarationBase {
  factory CssStyleDeclaration() => new CssStyleDeclaration.css('');

  factory CssStyleDeclaration.css(String css) {
    final style = new DivElement().style;
    style.cssText = css;
    return style;
  }

  /// Returns the value of the property if the provided *CSS* property
  /// name is supported on this element and if the value is set. Otherwise
  /// returns an empty string.
  ///
  /// Please note the property name uses camelCase, not-hyphens.
  String getPropertyValue(String propertyName) {
    return _getPropertyValueHelper(propertyName);
  }

  String _getPropertyValueHelper(String propertyName) {
    return _getPropertyValue(_browserPropertyName(propertyName));
  }

  /**
   * Returns true if the provided *CSS* property name is supported on this
   * element.
   *
   * Please note the property name camelCase, not-hyphens. This
   * method returns true if the property is accessible via an unprefixed _or_
   * prefixed property.
   */
  bool supportsProperty(String propertyName) {
    return _supportsProperty(propertyName) ||
        _supportsProperty(_camelCase("${Device.cssPrefix}$propertyName"));
  }

  bool _supportsProperty(String propertyName) {
    return JS('bool', '# in #', propertyName, this);
  }

  void setProperty(String propertyName, String? value, [String? priority]) {
    return _setPropertyHelper(
        _browserPropertyName(propertyName), value, priority);
  }

  String _browserPropertyName(String propertyName) {
    String? name = _readCache(propertyName);
    if (name is String) return name;
    name = _supportedBrowserPropertyName(propertyName);
    _writeCache(propertyName, name);
    return name;
  }

  String _supportedBrowserPropertyName(String propertyName) {
    if (_supportsProperty(_camelCase(propertyName))) {
      return propertyName;
    }
    var prefixed = "${Device.cssPrefix}$propertyName";
    if (_supportsProperty(prefixed)) {
      return prefixed;
    }
    // May be a CSS variable, just use it as provided.
    return propertyName;
  }

  static final _propertyCache = JS('', '{}');
  static String? _readCache(String key) =>
      JS('String|Null', '#[#]', _propertyCache, key);
  static void _writeCache(String key, String value) {
    JS('void', '#[#] = #', _propertyCache, key, value);
  }

  static String _camelCase(String hyphenated) {
    var replacedMs = JS('String', r'#.replace(/^-ms-/, "ms-")', hyphenated);
    return JS(
        'String',
        r'#.replace(/-([\da-z])/ig,'
            r'function(_, letter) { return letter.toUpperCase();})',
        replacedMs);
  }

  void _setPropertyHelper(String propertyName, String? value,
      [String? priority]) {
    if (value == null) value = '';
    if (priority == null) priority = '';
    JS('void', '#.setProperty(#, #, #)', this, propertyName, value, priority);
  }

  /**
   * Checks to see if CSS Transitions are supported.
   */
  static bool get supportsTransitions {
    return document.body!.style.supportsProperty('transition');
  }

  // To suppress missing implicit constructor warnings.
  factory CssStyleDeclaration._() {
    throw new UnsupportedError("Not supported");
  }

  String? get cssFloat native;

  set cssFloat(String? value) native;

  String? get cssText native;

  set cssText(String? value) native;

  int get length native;

  CssRule? get parentRule native;

  String getPropertyPriority(String property) native;

  @JSName('getPropertyValue')
  String _getPropertyValue(String property) native;

  String item(int index) native;

  String removeProperty(String property) native;

  /** Gets the value of "background" */
  String get background => this._background;

  /** Sets the value of "background" */
  set background(String? value) {
    _background = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('background')
  String get _background native;

  @JSName('background')
  set _background(String value) native;

  /** Gets the value of "background-attachment" */
  String get backgroundAttachment => this._backgroundAttachment;

  /** Sets the value of "background-attachment" */
  set backgroundAttachment(String? value) {
    _backgroundAttachment = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('backgroundAttachment')
  String get _backgroundAttachment native;

  @JSName('backgroundAttachment')
  set _backgroundAttachment(String value) native;

  /** Gets the value of "background-color" */
  String get backgroundColor => this._backgroundColor;

  /** Sets the value of "background-color" */
  set backgroundColor(String? value) {
    _backgroundColor = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('backgroundColor')
  String get _backgroundColor native;

  @JSName('backgroundColor')
  set _backgroundColor(String value) native;

  /** Gets the value of "background-image" */
  String get backgroundImage => this._backgroundImage;

  /** Sets the value of "background-image" */
  set backgroundImage(String? value) {
    _backgroundImage = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('backgroundImage')
  String get _backgroundImage native;

  @JSName('backgroundImage')
  set _backgroundImage(String value) native;

  /** Gets the value of "background-position" */
  String get backgroundPosition => this._backgroundPosition;

  /** Sets the value of "background-position" */
  set backgroundPosition(String? value) {
    _backgroundPosition = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('backgroundPosition')
  String get _backgroundPosition native;

  @JSName('backgroundPosition')
  set _backgroundPosition(String value) native;

  /** Gets the value of "background-repeat" */
  String get backgroundRepeat => this._backgroundRepeat;

  /** Sets the value of "background-repeat" */
  set backgroundRepeat(String? value) {
    _backgroundRepeat = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('backgroundRepeat')
  String get _backgroundRepeat native;

  @JSName('backgroundRepeat')
  set _backgroundRepeat(String value) native;

  /** Gets the value of "border" */
  String get border => this._border;

  /** Sets the value of "border" */
  set border(String? value) {
    _border = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('border')
  String get _border native;

  @JSName('border')
  set _border(String value) native;

  /** Gets the value of "border-bottom" */
  String get borderBottom => this._borderBottom;

  /** Sets the value of "border-bottom" */
  set borderBottom(String? value) {
    _borderBottom = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderBottom')
  String get _borderBottom native;

  @JSName('borderBottom')
  set _borderBottom(String value) native;

  /** Gets the value of "border-bottom-color" */
  String get borderBottomColor => this._borderBottomColor;

  /** Sets the value of "border-bottom-color" */
  set borderBottomColor(String? value) {
    _borderBottomColor = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderBottomColor')
  String get _borderBottomColor native;

  @JSName('borderBottomColor')
  set _borderBottomColor(String value) native;

  /** Gets the value of "border-bottom-style" */
  String get borderBottomStyle => this._borderBottomStyle;

  /** Sets the value of "border-bottom-style" */
  set borderBottomStyle(String? value) {
    _borderBottomStyle = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderBottomStyle')
  String get _borderBottomStyle native;

  @JSName('borderBottomStyle')
  set _borderBottomStyle(String value) native;

  /** Gets the value of "border-bottom-width" */
  String get borderBottomWidth => this._borderBottomWidth;

  /** Sets the value of "border-bottom-width" */
  set borderBottomWidth(String? value) {
    _borderBottomWidth = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderBottomWidth')
  String get _borderBottomWidth native;

  @JSName('borderBottomWidth')
  set _borderBottomWidth(String value) native;

  /** Gets the value of "border-collapse" */
  String get borderCollapse => this._borderCollapse;

  /** Sets the value of "border-collapse" */
  set borderCollapse(String? value) {
    _borderCollapse = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderCollapse')
  String get _borderCollapse native;

  @JSName('borderCollapse')
  set _borderCollapse(String value) native;

  /** Gets the value of "border-color" */
  String get borderColor => this._borderColor;

  /** Sets the value of "border-color" */
  set borderColor(String? value) {
    _borderColor = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderColor')
  String get _borderColor native;

  @JSName('borderColor')
  set _borderColor(String value) native;

  /** Gets the value of "border-left" */
  String get borderLeft => this._borderLeft;

  /** Sets the value of "border-left" */
  set borderLeft(String? value) {
    _borderLeft = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderLeft')
  String get _borderLeft native;

  @JSName('borderLeft')
  set _borderLeft(String value) native;

  /** Gets the value of "border-left-color" */
  String get borderLeftColor => this._borderLeftColor;

  /** Sets the value of "border-left-color" */
  set borderLeftColor(String? value) {
    _borderLeftColor = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderLeftColor')
  String get _borderLeftColor native;

  @JSName('borderLeftColor')
  set _borderLeftColor(String value) native;

  /** Gets the value of "border-left-style" */
  String get borderLeftStyle => this._borderLeftStyle;

  /** Sets the value of "border-left-style" */
  set borderLeftStyle(String? value) {
    _borderLeftStyle = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderLeftStyle')
  String get _borderLeftStyle native;

  @JSName('borderLeftStyle')
  set _borderLeftStyle(String value) native;

  /** Gets the value of "border-left-width" */
  String get borderLeftWidth => this._borderLeftWidth;

  /** Sets the value of "border-left-width" */
  set borderLeftWidth(String? value) {
    _borderLeftWidth = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderLeftWidth')
  String get _borderLeftWidth native;

  @JSName('borderLeftWidth')
  set _borderLeftWidth(String value) native;

  /** Gets the value of "border-right" */
  String get borderRight => this._borderRight;

  /** Sets the value of "border-right" */
  set borderRight(String? value) {
    _borderRight = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderRight')
  String get _borderRight native;

  @JSName('borderRight')
  set _borderRight(String value) native;

  /** Gets the value of "border-right-color" */
  String get borderRightColor => this._borderRightColor;

  /** Sets the value of "border-right-color" */
  set borderRightColor(String? value) {
    _borderRightColor = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderRightColor')
  String get _borderRightColor native;

  @JSName('borderRightColor')
  set _borderRightColor(String value) native;

  /** Gets the value of "border-right-style" */
  String get borderRightStyle => this._borderRightStyle;

  /** Sets the value of "border-right-style" */
  set borderRightStyle(String? value) {
    _borderRightStyle = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderRightStyle')
  String get _borderRightStyle native;

  @JSName('borderRightStyle')
  set _borderRightStyle(String value) native;

  /** Gets the value of "border-right-width" */
  String get borderRightWidth => this._borderRightWidth;

  /** Sets the value of "border-right-width" */
  set borderRightWidth(String? value) {
    _borderRightWidth = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderRightWidth')
  String get _borderRightWidth native;

  @JSName('borderRightWidth')
  set _borderRightWidth(String value) native;

  /** Gets the value of "border-spacing" */
  String get borderSpacing => this._borderSpacing;

  /** Sets the value of "border-spacing" */
  set borderSpacing(String? value) {
    _borderSpacing = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderSpacing')
  String get _borderSpacing native;

  @JSName('borderSpacing')
  set _borderSpacing(String value) native;

  /** Gets the value of "border-style" */
  String get borderStyle => this._borderStyle;

  /** Sets the value of "border-style" */
  set borderStyle(String? value) {
    _borderStyle = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderStyle')
  String get _borderStyle native;

  @JSName('borderStyle')
  set _borderStyle(String value) native;

  /** Gets the value of "border-top" */
  String get borderTop => this._borderTop;

  /** Sets the value of "border-top" */
  set borderTop(String? value) {
    _borderTop = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderTop')
  String get _borderTop native;

  @JSName('borderTop')
  set _borderTop(String value) native;

  /** Gets the value of "border-top-color" */
  String get borderTopColor => this._borderTopColor;

  /** Sets the value of "border-top-color" */
  set borderTopColor(String? value) {
    _borderTopColor = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderTopColor')
  String get _borderTopColor native;

  @JSName('borderTopColor')
  set _borderTopColor(String value) native;

  /** Gets the value of "border-top-style" */
  String get borderTopStyle => this._borderTopStyle;

  /** Sets the value of "border-top-style" */
  set borderTopStyle(String? value) {
    _borderTopStyle = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderTopStyle')
  String get _borderTopStyle native;

  @JSName('borderTopStyle')
  set _borderTopStyle(String value) native;

  /** Gets the value of "border-top-width" */
  String get borderTopWidth => this._borderTopWidth;

  /** Sets the value of "border-top-width" */
  set borderTopWidth(String? value) {
    _borderTopWidth = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderTopWidth')
  String get _borderTopWidth native;

  @JSName('borderTopWidth')
  set _borderTopWidth(String value) native;

  /** Gets the value of "border-width" */
  String get borderWidth => this._borderWidth;

  /** Sets the value of "border-width" */
  set borderWidth(String? value) {
    _borderWidth = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('borderWidth')
  String get _borderWidth native;

  @JSName('borderWidth')
  set _borderWidth(String value) native;

  /** Gets the value of "bottom" */
  String get bottom => this._bottom;

  /** Sets the value of "bottom" */
  set bottom(String? value) {
    _bottom = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('bottom')
  String get _bottom native;

  @JSName('bottom')
  set _bottom(String value) native;

  /** Gets the value of "caption-side" */
  String get captionSide => this._captionSide;

  /** Sets the value of "caption-side" */
  set captionSide(String? value) {
    _captionSide = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('captionSide')
  String get _captionSide native;

  @JSName('captionSide')
  set _captionSide(String value) native;

  /** Gets the value of "clear" */
  String get clear => this._clear;

  /** Sets the value of "clear" */
  set clear(String? value) {
    _clear = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('clear')
  String get _clear native;

  @JSName('clear')
  set _clear(String value) native;

  /** Gets the value of "clip" */
  String get clip => this._clip;

  /** Sets the value of "clip" */
  set clip(String? value) {
    _clip = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('clip')
  String get _clip native;

  @JSName('clip')
  set _clip(String value) native;

  /** Gets the value of "color" */
  String get color => this._color;

  /** Sets the value of "color" */
  set color(String? value) {
    _color = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('color')
  String get _color native;

  @JSName('color')
  set _color(String value) native;

  /** Gets the value of "content" */
  String get content => this._content;

  /** Sets the value of "content" */
  set content(String? value) {
    _content = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('content')
  String get _content native;

  @JSName('content')
  set _content(String value) native;

  /** Gets the value of "cursor" */
  String get cursor => this._cursor;

  /** Sets the value of "cursor" */
  set cursor(String? value) {
    _cursor = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('cursor')
  String get _cursor native;

  @JSName('cursor')
  set _cursor(String value) native;

  /** Gets the value of "direction" */
  String get direction => this._direction;

  /** Sets the value of "direction" */
  set direction(String? value) {
    _direction = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('direction')
  String get _direction native;

  @JSName('direction')
  set _direction(String value) native;

  /** Gets the value of "display" */
  String get display => this._display;

  /** Sets the value of "display" */
  set display(String? value) {
    _display = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('display')
  String get _display native;

  @JSName('display')
  set _display(String value) native;

  /** Gets the value of "empty-cells" */
  String get emptyCells => this._emptyCells;

  /** Sets the value of "empty-cells" */
  set emptyCells(String? value) {
    _emptyCells = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('emptyCells')
  String get _emptyCells native;

  @JSName('emptyCells')
  set _emptyCells(String value) native;

  /** Gets the value of "font" */
  String get font => this._font;

  /** Sets the value of "font" */
  set font(String? value) {
    _font = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('font')
  String get _font native;

  @JSName('font')
  set _font(String value) native;

  /** Gets the value of "font-family" */
  String get fontFamily => this._fontFamily;

  /** Sets the value of "font-family" */
  set fontFamily(String? value) {
    _fontFamily = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('fontFamily')
  String get _fontFamily native;

  @JSName('fontFamily')
  set _fontFamily(String value) native;

  /** Gets the value of "font-size" */
  String get fontSize => this._fontSize;

  /** Sets the value of "font-size" */
  set fontSize(String? value) {
    _fontSize = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('fontSize')
  String get _fontSize native;

  @JSName('fontSize')
  set _fontSize(String value) native;

  /** Gets the value of "font-style" */
  String get fontStyle => this._fontStyle;

  /** Sets the value of "font-style" */
  set fontStyle(String? value) {
    _fontStyle = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('fontStyle')
  String get _fontStyle native;

  @JSName('fontStyle')
  set _fontStyle(String value) native;

  /** Gets the value of "font-variant" */
  String get fontVariant => this._fontVariant;

  /** Sets the value of "font-variant" */
  set fontVariant(String? value) {
    _fontVariant = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('fontVariant')
  String get _fontVariant native;

  @JSName('fontVariant')
  set _fontVariant(String value) native;

  /** Gets the value of "font-weight" */
  String get fontWeight => this._fontWeight;

  /** Sets the value of "font-weight" */
  set fontWeight(String? value) {
    _fontWeight = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('fontWeight')
  String get _fontWeight native;

  @JSName('fontWeight')
  set _fontWeight(String value) native;

  /** Gets the value of "height" */
  String get height => this._height;

  /** Sets the value of "height" */
  set height(String? value) {
    _height = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('height')
  String get _height native;

  @JSName('height')
  set _height(String value) native;

  /** Gets the value of "left" */
  String get left => this._left;

  /** Sets the value of "left" */
  set left(String? value) {
    _left = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('left')
  String get _left native;

  @JSName('left')
  set _left(String value) native;

  /** Gets the value of "letter-spacing" */
  String get letterSpacing => this._letterSpacing;

  /** Sets the value of "letter-spacing" */
  set letterSpacing(String? value) {
    _letterSpacing = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('letterSpacing')
  String get _letterSpacing native;

  @JSName('letterSpacing')
  set _letterSpacing(String value) native;

  /** Gets the value of "line-height" */
  String get lineHeight => this._lineHeight;

  /** Sets the value of "line-height" */
  set lineHeight(String? value) {
    _lineHeight = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('lineHeight')
  String get _lineHeight native;

  @JSName('lineHeight')
  set _lineHeight(String value) native;

  /** Gets the value of "list-style" */
  String get listStyle => this._listStyle;

  /** Sets the value of "list-style" */
  set listStyle(String? value) {
    _listStyle = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('listStyle')
  String get _listStyle native;

  @JSName('listStyle')
  set _listStyle(String value) native;

  /** Gets the value of "list-style-image" */
  String get listStyleImage => this._listStyleImage;

  /** Sets the value of "list-style-image" */
  set listStyleImage(String? value) {
    _listStyleImage = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('listStyleImage')
  String get _listStyleImage native;

  @JSName('listStyleImage')
  set _listStyleImage(String value) native;

  /** Gets the value of "list-style-position" */
  String get listStylePosition => this._listStylePosition;

  /** Sets the value of "list-style-position" */
  set listStylePosition(String? value) {
    _listStylePosition = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('listStylePosition')
  String get _listStylePosition native;

  @JSName('listStylePosition')
  set _listStylePosition(String value) native;

  /** Gets the value of "list-style-type" */
  String get listStyleType => this._listStyleType;

  /** Sets the value of "list-style-type" */
  set listStyleType(String? value) {
    _listStyleType = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('listStyleType')
  String get _listStyleType native;

  @JSName('listStyleType')
  set _listStyleType(String value) native;

  /** Gets the value of "margin" */
  String get margin => this._margin;

  /** Sets the value of "margin" */
  set margin(String? value) {
    _margin = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('margin')
  String get _margin native;

  @JSName('margin')
  set _margin(String value) native;

  /** Gets the value of "margin-bottom" */
  String get marginBottom => this._marginBottom;

  /** Sets the value of "margin-bottom" */
  set marginBottom(String? value) {
    _marginBottom = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('marginBottom')
  String get _marginBottom native;

  @JSName('marginBottom')
  set _marginBottom(String value) native;

  /** Gets the value of "margin-left" */
  String get marginLeft => this._marginLeft;

  /** Sets the value of "margin-left" */
  set marginLeft(String? value) {
    _marginLeft = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('marginLeft')
  String get _marginLeft native;

  @JSName('marginLeft')
  set _marginLeft(String value) native;

  /** Gets the value of "margin-right" */
  String get marginRight => this._marginRight;

  /** Sets the value of "margin-right" */
  set marginRight(String? value) {
    _marginRight = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('marginRight')
  String get _marginRight native;

  @JSName('marginRight')
  set _marginRight(String value) native;

  /** Gets the value of "margin-top" */
  String get marginTop => this._marginTop;

  /** Sets the value of "margin-top" */
  set marginTop(String? value) {
    _marginTop = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('marginTop')
  String get _marginTop native;

  @JSName('marginTop')
  set _marginTop(String value) native;

  /** Gets the value of "max-height" */
  String get maxHeight => this._maxHeight;

  /** Sets the value of "max-height" */
  set maxHeight(String? value) {
    _maxHeight = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('maxHeight')
  String get _maxHeight native;

  @JSName('maxHeight')
  set _maxHeight(String value) native;

  /** Gets the value of "max-width" */
  String get maxWidth => this._maxWidth;

  /** Sets the value of "max-width" */
  set maxWidth(String? value) {
    _maxWidth = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('maxWidth')
  String get _maxWidth native;

  @JSName('maxWidth')
  set _maxWidth(String value) native;

  /** Gets the value of "min-height" */
  String get minHeight => this._minHeight;

  /** Sets the value of "min-height" */
  set minHeight(String? value) {
    _minHeight = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('minHeight')
  String get _minHeight native;

  @JSName('minHeight')
  set _minHeight(String value) native;

  /** Gets the value of "min-width" */
  String get minWidth => this._minWidth;

  /** Sets the value of "min-width" */
  set minWidth(String? value) {
    _minWidth = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('minWidth')
  String get _minWidth native;

  @JSName('minWidth')
  set _minWidth(String value) native;

  /** Gets the value of "outline" */
  String get outline => this._outline;

  /** Sets the value of "outline" */
  set outline(String? value) {
    _outline = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('outline')
  String get _outline native;

  @JSName('outline')
  set _outline(String value) native;

  /** Gets the value of "outline-color" */
  String get outlineColor => this._outlineColor;

  /** Sets the value of "outline-color" */
  set outlineColor(String? value) {
    _outlineColor = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('outlineColor')
  String get _outlineColor native;

  @JSName('outlineColor')
  set _outlineColor(String value) native;

  /** Gets the value of "outline-style" */
  String get outlineStyle => this._outlineStyle;

  /** Sets the value of "outline-style" */
  set outlineStyle(String? value) {
    _outlineStyle = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('outlineStyle')
  String get _outlineStyle native;

  @JSName('outlineStyle')
  set _outlineStyle(String value) native;

  /** Gets the value of "outline-width" */
  String get outlineWidth => this._outlineWidth;

  /** Sets the value of "outline-width" */
  set outlineWidth(String? value) {
    _outlineWidth = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('outlineWidth')
  String get _outlineWidth native;

  @JSName('outlineWidth')
  set _outlineWidth(String value) native;

  /** Gets the value of "overflow" */
  String get overflow => this._overflow;

  /** Sets the value of "overflow" */
  set overflow(String? value) {
    _overflow = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('overflow')
  String get _overflow native;

  @JSName('overflow')
  set _overflow(String value) native;

  /** Gets the value of "padding" */
  String get padding => this._padding;

  /** Sets the value of "padding" */
  set padding(String? value) {
    _padding = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('padding')
  String get _padding native;

  @JSName('padding')
  set _padding(String value) native;

  /** Gets the value of "padding-bottom" */
  String get paddingBottom => this._paddingBottom;

  /** Sets the value of "padding-bottom" */
  set paddingBottom(String? value) {
    _paddingBottom = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('paddingBottom')
  String get _paddingBottom native;

  @JSName('paddingBottom')
  set _paddingBottom(String value) native;

  /** Gets the value of "padding-left" */
  String get paddingLeft => this._paddingLeft;

  /** Sets the value of "padding-left" */
  set paddingLeft(String? value) {
    _paddingLeft = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('paddingLeft')
  String get _paddingLeft native;

  @JSName('paddingLeft')
  set _paddingLeft(String value) native;

  /** Gets the value of "padding-right" */
  String get paddingRight => this._paddingRight;

  /** Sets the value of "padding-right" */
  set paddingRight(String? value) {
    _paddingRight = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('paddingRight')
  String get _paddingRight native;

  @JSName('paddingRight')
  set _paddingRight(String value) native;

  /** Gets the value of "padding-top" */
  String get paddingTop => this._paddingTop;

  /** Sets the value of "padding-top" */
  set paddingTop(String? value) {
    _paddingTop = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('paddingTop')
  String get _paddingTop native;

  @JSName('paddingTop')
  set _paddingTop(String value) native;

  /** Gets the value of "page-break-after" */
  String get pageBreakAfter => this._pageBreakAfter;

  /** Sets the value of "page-break-after" */
  set pageBreakAfter(String? value) {
    _pageBreakAfter = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('pageBreakAfter')
  String get _pageBreakAfter native;

  @JSName('pageBreakAfter')
  set _pageBreakAfter(String value) native;

  /** Gets the value of "page-break-before" */
  String get pageBreakBefore => this._pageBreakBefore;

  /** Sets the value of "page-break-before" */
  set pageBreakBefore(String? value) {
    _pageBreakBefore = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('pageBreakBefore')
  String get _pageBreakBefore native;

  @JSName('pageBreakBefore')
  set _pageBreakBefore(String value) native;

  /** Gets the value of "page-break-inside" */
  String get pageBreakInside => this._pageBreakInside;

  /** Sets the value of "page-break-inside" */
  set pageBreakInside(String? value) {
    _pageBreakInside = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('pageBreakInside')
  String get _pageBreakInside native;

  @JSName('pageBreakInside')
  set _pageBreakInside(String value) native;

  /** Gets the value of "position" */
  String get position => this._position;

  /** Sets the value of "position" */
  set position(String? value) {
    _position = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('position')
  String get _position native;

  @JSName('position')
  set _position(String value) native;

  /** Gets the value of "quotes" */
  String get quotes => this._quotes;

  /** Sets the value of "quotes" */
  set quotes(String? value) {
    _quotes = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('quotes')
  String get _quotes native;

  @JSName('quotes')
  set _quotes(String value) native;

  /** Gets the value of "right" */
  String get right => this._right;

  /** Sets the value of "right" */
  set right(String? value) {
    _right = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('right')
  String get _right native;

  @JSName('right')
  set _right(String value) native;

  /** Gets the value of "table-layout" */
  String get tableLayout => this._tableLayout;

  /** Sets the value of "table-layout" */
  set tableLayout(String? value) {
    _tableLayout = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('tableLayout')
  String get _tableLayout native;

  @JSName('tableLayout')
  set _tableLayout(String value) native;

  /** Gets the value of "text-align" */
  String get textAlign => this._textAlign;

  /** Sets the value of "text-align" */
  set textAlign(String? value) {
    _textAlign = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('textAlign')
  String get _textAlign native;

  @JSName('textAlign')
  set _textAlign(String value) native;

  /** Gets the value of "text-decoration" */
  String get textDecoration => this._textDecoration;

  /** Sets the value of "text-decoration" */
  set textDecoration(String? value) {
    _textDecoration = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('textDecoration')
  String get _textDecoration native;

  @JSName('textDecoration')
  set _textDecoration(String value) native;

  /** Gets the value of "text-indent" */
  String get textIndent => this._textIndent;

  /** Sets the value of "text-indent" */
  set textIndent(String? value) {
    _textIndent = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('textIndent')
  String get _textIndent native;

  @JSName('textIndent')
  set _textIndent(String value) native;

  /** Gets the value of "text-transform" */
  String get textTransform => this._textTransform;

  /** Sets the value of "text-transform" */
  set textTransform(String? value) {
    _textTransform = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('textTransform')
  String get _textTransform native;

  @JSName('textTransform')
  set _textTransform(String value) native;

  /** Gets the value of "top" */
  String get top => this._top;

  /** Sets the value of "top" */
  set top(String? value) {
    _top = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('top')
  String get _top native;

  @JSName('top')
  set _top(String value) native;

  /** Gets the value of "unicode-bidi" */
  String get unicodeBidi => this._unicodeBidi;

  /** Sets the value of "unicode-bidi" */
  set unicodeBidi(String? value) {
    _unicodeBidi = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('unicodeBidi')
  String get _unicodeBidi native;

  @JSName('unicodeBidi')
  set _unicodeBidi(String value) native;

  /** Gets the value of "vertical-align" */
  String get verticalAlign => this._verticalAlign;

  /** Sets the value of "vertical-align" */
  set verticalAlign(String? value) {
    _verticalAlign = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('verticalAlign')
  String get _verticalAlign native;

  @JSName('verticalAlign')
  set _verticalAlign(String value) native;

  /** Gets the value of "visibility" */
  String get visibility => this._visibility;

  /** Sets the value of "visibility" */
  set visibility(String? value) {
    _visibility = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('visibility')
  String get _visibility native;

  @JSName('visibility')
  set _visibility(String value) native;

  /** Gets the value of "white-space" */
  String get whiteSpace => this._whiteSpace;

  /** Sets the value of "white-space" */
  set whiteSpace(String? value) {
    _whiteSpace = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('whiteSpace')
  String get _whiteSpace native;

  @JSName('whiteSpace')
  set _whiteSpace(String value) native;

  /** Gets the value of "width" */
  String get width => this._width;

  /** Sets the value of "width" */
  set width(String? value) {
    _width = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('width')
  String get _width native;

  @JSName('width')
  set _width(String value) native;

  /** Gets the value of "word-spacing" */
  String get wordSpacing => this._wordSpacing;

  /** Sets the value of "word-spacing" */
  set wordSpacing(String? value) {
    _wordSpacing = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('wordSpacing')
  String get _wordSpacing native;

  @JSName('wordSpacing')
  set _wordSpacing(String value) native;

  /** Gets the value of "z-index" */
  String get zIndex => this._zIndex;

  /** Sets the value of "z-index" */
  set zIndex(String? value) {
    _zIndex = value == null ? '' : value;
  }

  @Returns('String')
  @JSName('zIndex')
  String get _zIndex native;

  @JSName('zIndex')
  set _zIndex(String value) native;
}

class _CssStyleDeclarationSet extends Object with CssStyleDeclarationBase {
  final Iterable<Element> _elementIterable;
  Iterable<CssStyleDeclaration>? _elementCssStyleDeclarationSetIterable;

  _CssStyleDeclarationSet(this._elementIterable) {
    _elementCssStyleDeclarationSetIterable =
        new List.from(_elementIterable).map((e) => e.style);
  }

  String getPropertyValue(String propertyName) =>
      _elementCssStyleDeclarationSetIterable!.first
          .getPropertyValue(propertyName);

  void setProperty(String propertyName, String? value, [String? priority]) {
    _elementCssStyleDeclarationSetIterable!
        .forEach((e) => e.setProperty(propertyName, value, priority));
  }

  void _setAll(String propertyName, String? value) {
    value = value == null ? '' : value;
    for (Element element in _elementIterable) {
      JS('void', '#.style[#] = #', element, propertyName, value);
    }
  }

  /** Sets the value of "background" */
  set background(String value) {
    _setAll('background', value);
  }

  /** Sets the value of "background-attachment" */
  set backgroundAttachment(String value) {
    _setAll('backgroundAttachment', value);
  }

  /** Sets the value of "background-color" */
  set backgroundColor(String value) {
    _setAll('backgroundColor', value);
  }

  /** Sets the value of "background-image" */
  set backgroundImage(String value) {
    _setAll('backgroundImage', value);
  }

  /** Sets the value of "background-position" */
  set backgroundPosition(String value) {
    _setAll('backgroundPosition', value);
  }

  /** Sets the value of "background-repeat" */
  set backgroundRepeat(String value) {
    _setAll('backgroundRepeat', value);
  }

  /** Sets the value of "border" */
  set border(String value) {
    _setAll('border', value);
  }

  /** Sets the value of "border-bottom" */
  set borderBottom(String value) {
    _setAll('borderBottom', value);
  }

  /** Sets the value of "border-bottom-color" */
  set borderBottomColor(String value) {
    _setAll('borderBottomColor', value);
  }

  /** Sets the value of "border-bottom-style" */
  set borderBottomStyle(String value) {
    _setAll('borderBottomStyle', value);
  }

  /** Sets the value of "border-bottom-width" */
  set borderBottomWidth(String value) {
    _setAll('borderBottomWidth', value);
  }

  /** Sets the value of "border-collapse" */
  set borderCollapse(String value) {
    _setAll('borderCollapse', value);
  }

  /** Sets the value of "border-color" */
  set borderColor(String value) {
    _setAll('borderColor', value);
  }

  /** Sets the value of "border-left" */
  set borderLeft(String value) {
    _setAll('borderLeft', value);
  }

  /** Sets the value of "border-left-color" */
  set borderLeftColor(String value) {
    _setAll('borderLeftColor', value);
  }

  /** Sets the value of "border-left-style" */
  set borderLeftStyle(String value) {
    _setAll('borderLeftStyle', value);
  }

  /** Sets the value of "border-left-width" */
  set borderLeftWidth(String value) {
    _setAll('borderLeftWidth', value);
  }

  /** Sets the value of "border-right" */
  set borderRight(String value) {
    _setAll('borderRight', value);
  }

  /** Sets the value of "border-right-color" */
  set borderRightColor(String value) {
    _setAll('borderRightColor', value);
  }

  /** Sets the value of "border-right-style" */
  set borderRightStyle(String value) {
    _setAll('borderRightStyle', value);
  }

  /** Sets the value of "border-right-width" */
  set borderRightWidth(String value) {
    _setAll('borderRightWidth', value);
  }

  /** Sets the value of "border-spacing" */
  set borderSpacing(String value) {
    _setAll('borderSpacing', value);
  }

  /** Sets the value of "border-style" */
  set borderStyle(String value) {
    _setAll('borderStyle', value);
  }

  /** Sets the value of "border-top" */
  set borderTop(String value) {
    _setAll('borderTop', value);
  }

  /** Sets the value of "border-top-color" */
  set borderTopColor(String value) {
    _setAll('borderTopColor', value);
  }

  /** Sets the value of "border-top-style" */
  set borderTopStyle(String value) {
    _setAll('borderTopStyle', value);
  }

  /** Sets the value of "border-top-width" */
  set borderTopWidth(String value) {
    _setAll('borderTopWidth', value);
  }

  /** Sets the value of "border-width" */
  set borderWidth(String value) {
    _setAll('borderWidth', value);
  }

  /** Sets the value of "bottom" */
  set bottom(String value) {
    _setAll('bottom', value);
  }

  /** Sets the value of "caption-side" */
  set captionSide(String value) {
    _setAll('captionSide', value);
  }

  /** Sets the value of "clear" */
  set clear(String value) {
    _setAll('clear', value);
  }

  /** Sets the value of "clip" */
  set clip(String value) {
    _setAll('clip', value);
  }

  /** Sets the value of "color" */
  set color(String value) {
    _setAll('color', value);
  }

  /** Sets the value of "content" */
  set content(String value) {
    _setAll('content', value);
  }

  /** Sets the value of "cursor" */
  set cursor(String value) {
    _setAll('cursor', value);
  }

  /** Sets the value of "direction" */
  set direction(String value) {
    _setAll('direction', value);
  }

  /** Sets the value of "display" */
  set display(String value) {
    _setAll('display', value);
  }

  /** Sets the value of "empty-cells" */
  set emptyCells(String value) {
    _setAll('emptyCells', value);
  }

  /** Sets the value of "font" */
  set font(String value) {
    _setAll('font', value);
  }

  /** Sets the value of "font-family" */
  set fontFamily(String value) {
    _setAll('fontFamily', value);
  }

  /** Sets the value of "font-size" */
  set fontSize(String value) {
    _setAll('fontSize', value);
  }

  /** Sets the value of "font-style" */
  set fontStyle(String value) {
    _setAll('fontStyle', value);
  }

  /** Sets the value of "font-variant" */
  set fontVariant(String value) {
    _setAll('fontVariant', value);
  }

  /** Sets the value of "font-weight" */
  set fontWeight(String value) {
    _setAll('fontWeight', value);
  }

  /** Sets the value of "height" */
  set height(String value) {
    _setAll('height', value);
  }

  /** Sets the value of "left" */
  set left(String value) {
    _setAll('left', value);
  }

  /** Sets the value of "letter-spacing" */
  set letterSpacing(String value) {
    _setAll('letterSpacing', value);
  }

  /** Sets the value of "line-height" */
  set lineHeight(String value) {
    _setAll('lineHeight', value);
  }

  /** Sets the value of "list-style" */
  set listStyle(String value) {
    _setAll('listStyle', value);
  }

  /** Sets the value of "list-style-image" */
  set listStyleImage(String value) {
    _setAll('listStyleImage', value);
  }

  /** Sets the value of "list-style-position" */
  set listStylePosition(String value) {
    _setAll('listStylePosition', value);
  }

  /** Sets the value of "list-style-type" */
  set listStyleType(String value) {
    _setAll('listStyleType', value);
  }

  /** Sets the value of "margin" */
  set margin(String value) {
    _setAll('margin', value);
  }

  /** Sets the value of "margin-bottom" */
  set marginBottom(String value) {
    _setAll('marginBottom', value);
  }

  /** Sets the value of "margin-left" */
  set marginLeft(String value) {
    _setAll('marginLeft', value);
  }

  /** Sets the value of "margin-right" */
  set marginRight(String value) {
    _setAll('marginRight', value);
  }

  /** Sets the value of "margin-top" */
  set marginTop(String value) {
    _setAll('marginTop', value);
  }

  /** Sets the value of "max-height" */
  set maxHeight(String value) {
    _setAll('maxHeight', value);
  }

  /** Sets the value of "max-width" */
  set maxWidth(String value) {
    _setAll('maxWidth', value);
  }

  /** Sets the value of "min-height" */
  set minHeight(String value) {
    _setAll('minHeight', value);
  }

  /** Sets the value of "min-width" */
  set minWidth(String value) {
    _setAll('minWidth', value);
  }

  /** Sets the value of "outline" */
  set outline(String value) {
    _setAll('outline', value);
  }

  /** Sets the value of "outline-color" */
  set outlineColor(String value) {
    _setAll('outlineColor', value);
  }

  /** Sets the value of "outline-style" */
  set outlineStyle(String value) {
    _setAll('outlineStyle', value);
  }

  /** Sets the value of "outline-width" */
  set outlineWidth(String value) {
    _setAll('outlineWidth', value);
  }

  /** Sets the value of "overflow" */
  set overflow(String value) {
    _setAll('overflow', value);
  }

  /** Sets the value of "padding" */
  set padding(String value) {
    _setAll('padding', value);
  }

  /** Sets the value of "padding-bottom" */
  set paddingBottom(String value) {
    _setAll('paddingBottom', value);
  }

  /** Sets the value of "padding-left" */
  set paddingLeft(String value) {
    _setAll('paddingLeft', value);
  }

  /** Sets the value of "padding-right" */
  set paddingRight(String value) {
    _setAll('paddingRight', value);
  }

  /** Sets the value of "padding-top" */
  set paddingTop(String value) {
    _setAll('paddingTop', value);
  }

  /** Sets the value of "page-break-after" */
  set pageBreakAfter(String value) {
    _setAll('pageBreakAfter', value);
  }

  /** Sets the value of "page-break-before" */
  set pageBreakBefore(String value) {
    _setAll('pageBreakBefore', value);
  }

  /** Sets the value of "page-break-inside" */
  set pageBreakInside(String value) {
    _setAll('pageBreakInside', value);
  }

  /** Sets the value of "position" */
  set position(String value) {
    _setAll('position', value);
  }

  /** Sets the value of "quotes" */
  set quotes(String value) {
    _setAll('quotes', value);
  }

  /** Sets the value of "right" */
  set right(String value) {
    _setAll('right', value);
  }

  /** Sets the value of "table-layout" */
  set tableLayout(String value) {
    _setAll('tableLayout', value);
  }

  /** Sets the value of "text-align" */
  set textAlign(String value) {
    _setAll('textAlign', value);
  }

  /** Sets the value of "text-decoration" */
  set textDecoration(String value) {
    _setAll('textDecoration', value);
  }

  /** Sets the value of "text-indent" */
  set textIndent(String value) {
    _setAll('textIndent', value);
  }

  /** Sets the value of "text-transform" */
  set textTransform(String value) {
    _setAll('textTransform', value);
  }

  /** Sets the value of "top" */
  set top(String value) {
    _setAll('top', value);
  }

  /** Sets the value of "unicode-bidi" */
  set unicodeBidi(String value) {
    _setAll('unicodeBidi', value);
  }

  /** Sets the value of "vertical-align" */
  set verticalAlign(String value) {
    _setAll('verticalAlign', value);
  }

  /** Sets the value of "visibility" */
  set visibility(String value) {
    _setAll('visibility', value);
  }

  /** Sets the value of "white-space" */
  set whiteSpace(String value) {
    _setAll('whiteSpace', value);
  }

  /** Sets the value of "width" */
  set width(String value) {
    _setAll('width', value);
  }

  /** Sets the value of "word-spacing" */
  set wordSpacing(String value) {
    _setAll('wordSpacing', value);
  }

  /** Sets the value of "z-index" */
  set zIndex(String value) {
    _setAll('zIndex', value);
  }

  // Important note: CssStyleDeclarationSet does NOT implement every method
  // available in CssStyleDeclaration. Some of the methods don't make so much
  // sense in terms of having a resonable value to return when you're
  // considering a list of Elements. You will need to manually add any of the
  // items in the MEMBERS set if you want that functionality.
}

abstract class CssStyleDeclarationBase {
  String getPropertyValue(String propertyName);
  void setProperty(String propertyName, String? value, [String? priority]);

  /** Gets the value of "align-content" */
  String get alignContent => getPropertyValue('align-content');

  /** Sets the value of "align-content" */
  set alignContent(String value) {
    setProperty('align-content', value, '');
  }

  /** Gets the value of "align-items" */
  String get alignItems => getPropertyValue('align-items');

  /** Sets the value of "align-items" */
  set alignItems(String value) {
    setProperty('align-items', value, '');
  }

  /** Gets the value of "align-self" */
  String get alignSelf => getPropertyValue('align-self');

  /** Sets the value of "align-self" */
  set alignSelf(String value) {
    setProperty('align-self', value, '');
  }

  /** Gets the value of "animation" */
  String get animation => getPropertyValue('animation');

  /** Sets the value of "animation" */
  set animation(String value) {
    setProperty('animation', value, '');
  }

  /** Gets the value of "animation-delay" */
  String get animationDelay => getPropertyValue('animation-delay');

  /** Sets the value of "animation-delay" */
  set animationDelay(String value) {
    setProperty('animation-delay', value, '');
  }

  /** Gets the value of "animation-direction" */
  String get animationDirection => getPropertyValue('animation-direction');

  /** Sets the value of "animation-direction" */
  set animationDirection(String value) {
    setProperty('animation-direction', value, '');
  }

  /** Gets the value of "animation-duration" */
  String get animationDuration => getPropertyValue('animation-duration');

  /** Sets the value of "animation-duration" */
  set animationDuration(String value) {
    setProperty('animation-duration', value, '');
  }

  /** Gets the value of "animation-fill-mode" */
  String get animationFillMode => getPropertyValue('animation-fill-mode');

  /** Sets the value of "animation-fill-mode" */
  set animationFillMode(String value) {
    setProperty('animation-fill-mode', value, '');
  }

  /** Gets the value of "animation-iteration-count" */
  String get animationIterationCount =>
      getPropertyValue('animation-iteration-count');

  /** Sets the value of "animation-iteration-count" */
  set animationIterationCount(String value) {
    setProperty('animation-iteration-count', value, '');
  }

  /** Gets the value of "animation-name" */
  String get animationName => getPropertyValue('animation-name');

  /** Sets the value of "animation-name" */
  set animationName(String value) {
    setProperty('animation-name', value, '');
  }

  /** Gets the value of "animation-play-state" */
  String get animationPlayState => getPropertyValue('animation-play-state');

  /** Sets the value of "animation-play-state" */
  set animationPlayState(String value) {
    setProperty('animation-play-state', value, '');
  }

  /** Gets the value of "animation-timing-function" */
  String get animationTimingFunction =>
      getPropertyValue('animation-timing-function');

  /** Sets the value of "animation-timing-function" */
  set animationTimingFunction(String value) {
    setProperty('animation-timing-function', value, '');
  }

  /** Gets the value of "app-region" */
  String get appRegion => getPropertyValue('app-region');

  /** Sets the value of "app-region" */
  set appRegion(String value) {
    setProperty('app-region', value, '');
  }

  /** Gets the value of "appearance" */
  String get appearance => getPropertyValue('appearance');

  /** Sets the value of "appearance" */
  set appearance(String value) {
    setProperty('appearance', value, '');
  }

  /** Gets the value of "aspect-ratio" */
  String get aspectRatio => getPropertyValue('aspect-ratio');

  /** Sets the value of "aspect-ratio" */
  set aspectRatio(String value) {
    setProperty('aspect-ratio', value, '');
  }

  /** Gets the value of "backface-visibility" */
  String get backfaceVisibility => getPropertyValue('backface-visibility');

  /** Sets the value of "backface-visibility" */
  set backfaceVisibility(String value) {
    setProperty('backface-visibility', value, '');
  }

  /** Gets the value of "background" */
  String get background => getPropertyValue('background');

  /** Sets the value of "background" */
  set background(String value) {
    setProperty('background', value, '');
  }

  /** Gets the value of "background-attachment" */
  String get backgroundAttachment => getPropertyValue('background-attachment');

  /** Sets the value of "background-attachment" */
  set backgroundAttachment(String value) {
    setProperty('background-attachment', value, '');
  }

  /** Gets the value of "background-blend-mode" */
  String get backgroundBlendMode => getPropertyValue('background-blend-mode');

  /** Sets the value of "background-blend-mode" */
  set backgroundBlendMode(String value) {
    setProperty('background-blend-mode', value, '');
  }

  /** Gets the value of "background-clip" */
  String get backgroundClip => getPropertyValue('background-clip');

  /** Sets the value of "background-clip" */
  set backgroundClip(String value) {
    setProperty('background-clip', value, '');
  }

  /** Gets the value of "background-color" */
  String get backgroundColor => getPropertyValue('background-color');

  /** Sets the value of "background-color" */
  set backgroundColor(String value) {
    setProperty('background-color', value, '');
  }

  /** Gets the value of "background-composite" */
  String get backgroundComposite => getPropertyValue('background-composite');

  /** Sets the value of "background-composite" */
  set backgroundComposite(String value) {
    setProperty('background-composite', value, '');
  }

  /** Gets the value of "background-image" */
  String get backgroundImage => getPropertyValue('background-image');

  /** Sets the value of "background-image" */
  set backgroundImage(String value) {
    setProperty('background-image', value, '');
  }

  /** Gets the value of "background-origin" */
  String get backgroundOrigin => getPropertyValue('background-origin');

  /** Sets the value of "background-origin" */
  set backgroundOrigin(String value) {
    setProperty('background-origin', value, '');
  }

  /** Gets the value of "background-position" */
  String get backgroundPosition => getPropertyValue('background-position');

  /** Sets the value of "background-position" */
  set backgroundPosition(String value) {
    setProperty('background-position', value, '');
  }

  /** Gets the value of "background-position-x" */
  String get backgroundPositionX => getPropertyValue('background-position-x');

  /** Sets the value of "background-position-x" */
  set backgroundPositionX(String value) {
    setProperty('background-position-x', value, '');
  }

  /** Gets the value of "background-position-y" */
  String get backgroundPositionY => getPropertyValue('background-position-y');

  /** Sets the value of "background-position-y" */
  set backgroundPositionY(String value) {
    setProperty('background-position-y', value, '');
  }

  /** Gets the value of "background-repeat" */
  String get backgroundRepeat => getPropertyValue('background-repeat');

  /** Sets the value of "background-repeat" */
  set backgroundRepeat(String value) {
    setProperty('background-repeat', value, '');
  }

  /** Gets the value of "background-repeat-x" */
  String get backgroundRepeatX => getPropertyValue('background-repeat-x');

  /** Sets the value of "background-repeat-x" */
  set backgroundRepeatX(String value) {
    setProperty('background-repeat-x', value, '');
  }

  /** Gets the value of "background-repeat-y" */
  String get backgroundRepeatY => getPropertyValue('background-repeat-y');

  /** Sets the value of "background-repeat-y" */
  set backgroundRepeatY(String value) {
    setProperty('background-repeat-y', value, '');
  }

  /** Gets the value of "background-size" */
  String get backgroundSize => getPropertyValue('background-size');

  /** Sets the value of "background-size" */
  set backgroundSize(String value) {
    setProperty('background-size', value, '');
  }

  /** Gets the value of "border" */
  String get border => getPropertyValue('border');

  /** Sets the value of "border" */
  set border(String value) {
    setProperty('border', value, '');
  }

  /** Gets the value of "border-after" */
  String get borderAfter => getPropertyValue('border-after');

  /** Sets the value of "border-after" */
  set borderAfter(String value) {
    setProperty('border-after', value, '');
  }

  /** Gets the value of "border-after-color" */
  String get borderAfterColor => getPropertyValue('border-after-color');

  /** Sets the value of "border-after-color" */
  set borderAfterColor(String value) {
    setProperty('border-after-color', value, '');
  }

  /** Gets the value of "border-after-style" */
  String get borderAfterStyle => getPropertyValue('border-after-style');

  /** Sets the value of "border-after-style" */
  set borderAfterStyle(String value) {
    setProperty('border-after-style', value, '');
  }

  /** Gets the value of "border-after-width" */
  String get borderAfterWidth => getPropertyValue('border-after-width');

  /** Sets the value of "border-after-width" */
  set borderAfterWidth(String value) {
    setProperty('border-after-width', value, '');
  }

  /** Gets the value of "border-before" */
  String get borderBefore => getPropertyValue('border-before');

  /** Sets the value of "border-before" */
  set borderBefore(String value) {
    setProperty('border-before', value, '');
  }

  /** Gets the value of "border-before-color" */
  String get borderBeforeColor => getPropertyValue('border-before-color');

  /** Sets the value of "border-before-color" */
  set borderBeforeColor(String value) {
    setProperty('border-before-color', value, '');
  }

  /** Gets the value of "border-before-style" */
  String get borderBeforeStyle => getPropertyValue('border-before-style');

  /** Sets the value of "border-before-style" */
  set borderBeforeStyle(String value) {
    setProperty('border-before-style', value, '');
  }

  /** Gets the value of "border-before-width" */
  String get borderBeforeWidth => getPropertyValue('border-before-width');

  /** Sets the value of "border-before-width" */
  set borderBeforeWidth(String value) {
    setProperty('border-before-width', value, '');
  }

  /** Gets the value of "border-bottom" */
  String get borderBottom => getPropertyValue('border-bottom');

  /** Sets the value of "border-bottom" */
  set borderBottom(String value) {
    setProperty('border-bottom', value, '');
  }

  /** Gets the value of "border-bottom-color" */
  String get borderBottomColor => getPropertyValue('border-bottom-color');

  /** Sets the value of "border-bottom-color" */
  set borderBottomColor(String value) {
    setProperty('border-bottom-color', value, '');
  }

  /** Gets the value of "border-bottom-left-radius" */
  String get borderBottomLeftRadius =>
      getPropertyValue('border-bottom-left-radius');

  /** Sets the value of "border-bottom-left-radius" */
  set borderBottomLeftRadius(String value) {
    setProperty('border-bottom-left-radius', value, '');
  }

  /** Gets the value of "border-bottom-right-radius" */
  String get borderBottomRightRadius =>
      getPropertyValue('border-bottom-right-radius');

  /** Sets the value of "border-bottom-right-radius" */
  set borderBottomRightRadius(String value) {
    setProperty('border-bottom-right-radius', value, '');
  }

  /** Gets the value of "border-bottom-style" */
  String get borderBottomStyle => getPropertyValue('border-bottom-style');

  /** Sets the value of "border-bottom-style" */
  set borderBottomStyle(String value) {
    setProperty('border-bottom-style', value, '');
  }

  /** Gets the value of "border-bottom-width" */
  String get borderBottomWidth => getPropertyValue('border-bottom-width');

  /** Sets the value of "border-bottom-width" */
  set borderBottomWidth(String value) {
    setProperty('border-bottom-width', value, '');
  }

  /** Gets the value of "border-collapse" */
  String get borderCollapse => getPropertyValue('border-collapse');

  /** Sets the value of "border-collapse" */
  set borderCollapse(String value) {
    setProperty('border-collapse', value, '');
  }

  /** Gets the value of "border-color" */
  String get borderColor => getPropertyValue('border-color');

  /** Sets the value of "border-color" */
  set borderColor(String value) {
    setProperty('border-color', value, '');
  }

  /** Gets the value of "border-end" */
  String get borderEnd => getPropertyValue('border-end');

  /** Sets the value of "border-end" */
  set borderEnd(String value) {
    setProperty('border-end', value, '');
  }

  /** Gets the value of "border-end-color" */
  String get borderEndColor => getPropertyValue('border-end-color');

  /** Sets the value of "border-end-color" */
  set borderEndColor(String value) {
    setProperty('border-end-color', value, '');
  }

  /** Gets the value of "border-end-style" */
  String get borderEndStyle => getPropertyValue('border-end-style');

  /** Sets the value of "border-end-style" */
  set borderEndStyle(String value) {
    setProperty('border-end-style', value, '');
  }

  /** Gets the value of "border-end-width" */
  String get borderEndWidth => getPropertyValue('border-end-width');

  /** Sets the value of "border-end-width" */
  set borderEndWidth(String value) {
    setProperty('border-end-width', value, '');
  }

  /** Gets the value of "border-fit" */
  String get borderFit => getPropertyValue('border-fit');

  /** Sets the value of "border-fit" */
  set borderFit(String value) {
    setProperty('border-fit', value, '');
  }

  /** Gets the value of "border-horizontal-spacing" */
  String get borderHorizontalSpacing =>
      getPropertyValue('border-horizontal-spacing');

  /** Sets the value of "border-horizontal-spacing" */
  set borderHorizontalSpacing(String value) {
    setProperty('border-horizontal-spacing', value, '');
  }

  /** Gets the value of "border-image" */
  String get borderImage => getPropertyValue('border-image');

  /** Sets the value of "border-image" */
  set borderImage(String value) {
    setProperty('border-image', value, '');
  }

  /** Gets the value of "border-image-outset" */
  String get borderImageOutset => getPropertyValue('border-image-outset');

  /** Sets the value of "border-image-outset" */
  set borderImageOutset(String value) {
    setProperty('border-image-outset', value, '');
  }

  /** Gets the value of "border-image-repeat" */
  String get borderImageRepeat => getPropertyValue('border-image-repeat');

  /** Sets the value of "border-image-repeat" */
  set borderImageRepeat(String value) {
    setProperty('border-image-repeat', value, '');
  }

  /** Gets the value of "border-image-slice" */
  String get borderImageSlice => getPropertyValue('border-image-slice');

  /** Sets the value of "border-image-slice" */
  set borderImageSlice(String value) {
    setProperty('border-image-slice', value, '');
  }

  /** Gets the value of "border-image-source" */
  String get borderImageSource => getPropertyValue('border-image-source');

  /** Sets the value of "border-image-source" */
  set borderImageSource(String value) {
    setProperty('border-image-source', value, '');
  }

  /** Gets the value of "border-image-width" */
  String get borderImageWidth => getPropertyValue('border-image-width');

  /** Sets the value of "border-image-width" */
  set borderImageWidth(String value) {
    setProperty('border-image-width', value, '');
  }

  /** Gets the value of "border-left" */
  String get borderLeft => getPropertyValue('border-left');

  /** Sets the value of "border-left" */
  set borderLeft(String value) {
    setProperty('border-left', value, '');
  }

  /** Gets the value of "border-left-color" */
  String get borderLeftColor => getPropertyValue('border-left-color');

  /** Sets the value of "border-left-color" */
  set borderLeftColor(String value) {
    setProperty('border-left-color', value, '');
  }

  /** Gets the value of "border-left-style" */
  String get borderLeftStyle => getPropertyValue('border-left-style');

  /** Sets the value of "border-left-style" */
  set borderLeftStyle(String value) {
    setProperty('border-left-style', value, '');
  }

  /** Gets the value of "border-left-width" */
  String get borderLeftWidth => getPropertyValue('border-left-width');

  /** Sets the value of "border-left-width" */
  set borderLeftWidth(String value) {
    setProperty('border-left-width', value, '');
  }

  /** Gets the value of "border-radius" */
  String get borderRadius => getPropertyValue('border-radius');

  /** Sets the value of "border-radius" */
  set borderRadius(String value) {
    setProperty('border-radius', value, '');
  }

  /** Gets the value of "border-right" */
  String get borderRight => getPropertyValue('border-right');

  /** Sets the value of "border-right" */
  set borderRight(String value) {
    setProperty('border-right', value, '');
  }

  /** Gets the value of "border-right-color" */
  String get borderRightColor => getPropertyValue('border-right-color');

  /** Sets the value of "border-right-color" */
  set borderRightColor(String value) {
    setProperty('border-right-color', value, '');
  }

  /** Gets the value of "border-right-style" */
  String get borderRightStyle => getPropertyValue('border-right-style');

  /** Sets the value of "border-right-style" */
  set borderRightStyle(String value) {
    setProperty('border-right-style', value, '');
  }

  /** Gets the value of "border-right-width" */
  String get borderRightWidth => getPropertyValue('border-right-width');

  /** Sets the value of "border-right-width" */
  set borderRightWidth(String value) {
    setProperty('border-right-width', value, '');
  }

  /** Gets the value of "border-spacing" */
  String get borderSpacing => getPropertyValue('border-spacing');

  /** Sets the value of "border-spacing" */
  set borderSpacing(String value) {
    setProperty('border-spacing', value, '');
  }

  /** Gets the value of "border-start" */
  String get borderStart => getPropertyValue('border-start');

  /** Sets the value of "border-start" */
  set borderStart(String value) {
    setProperty('border-start', value, '');
  }

  /** Gets the value of "border-start-color" */
  String get borderStartColor => getPropertyValue('border-start-color');

  /** Sets the value of "border-start-color" */
  set borderStartColor(String value) {
    setProperty('border-start-color', value, '');
  }

  /** Gets the value of "border-start-style" */
  String get borderStartStyle => getPropertyValue('border-start-style');

  /** Sets the value of "border-start-style" */
  set borderStartStyle(String value) {
    setProperty('border-start-style', value, '');
  }

  /** Gets the value of "border-start-width" */
  String get borderStartWidth => getPropertyValue('border-start-width');

  /** Sets the value of "border-start-width" */
  set borderStartWidth(String value) {
    setProperty('border-start-width', value, '');
  }

  /** Gets the value of "border-style" */
  String get borderStyle => getPropertyValue('border-style');

  /** Sets the value of "border-style" */
  set borderStyle(String value) {
    setProperty('border-style', value, '');
  }

  /** Gets the value of "border-top" */
  String get borderTop => getPropertyValue('border-top');

  /** Sets the value of "border-top" */
  set borderTop(String value) {
    setProperty('border-top', value, '');
  }

  /** Gets the value of "border-top-color" */
  String get borderTopColor => getPropertyValue('border-top-color');

  /** Sets the value of "border-top-color" */
  set borderTopColor(String value) {
    setProperty('border-top-color', value, '');
  }

  /** Gets the value of "border-top-left-radius" */
  String get borderTopLeftRadius => getPropertyValue('border-top-left-radius');

  /** Sets the value of "border-top-left-radius" */
  set borderTopLeftRadius(String value) {
    setProperty('border-top-left-radius', value, '');
  }

  /** Gets the value of "border-top-right-radius" */
  String get borderTopRightRadius =>
      getPropertyValue('border-top-right-radius');

  /** Sets the value of "border-top-right-radius" */
  set borderTopRightRadius(String value) {
    setProperty('border-top-right-radius', value, '');
  }

  /** Gets the value of "border-top-style" */
  String get borderTopStyle => getPropertyValue('border-top-style');

  /** Sets the value of "border-top-style" */
  set borderTopStyle(String value) {
    setProperty('border-top-style', value, '');
  }

  /** Gets the value of "border-top-width" */
  String get borderTopWidth => getPropertyValue('border-top-width');

  /** Sets the value of "border-top-width" */
  set borderTopWidth(String value) {
    setProperty('border-top-width', value, '');
  }

  /** Gets the value of "border-vertical-spacing" */
  String get borderVerticalSpacing =>
      getPropertyValue('border-vertical-spacing');

  /** Sets the value of "border-vertical-spacing" */
  set borderVerticalSpacing(String value) {
    setProperty('border-vertical-spacing', value, '');
  }

  /** Gets the value of "border-width" */
  String get borderWidth => getPropertyValue('border-width');

  /** Sets the value of "border-width" */
  set borderWidth(String value) {
    setProperty('border-width', value, '');
  }

  /** Gets the value of "bottom" */
  String get bottom => getPropertyValue('bottom');

  /** Sets the value of "bottom" */
  set bottom(String value) {
    setProperty('bottom', value, '');
  }

  /** Gets the value of "box-align" */
  String get boxAlign => getPropertyValue('box-align');

  /** Sets the value of "box-align" */
  set boxAlign(String value) {
    setProperty('box-align', value, '');
  }

  /** Gets the value of "box-decoration-break" */
  String get boxDecorationBreak => getPropertyValue('box-decoration-break');

  /** Sets the value of "box-decoration-break" */
  set boxDecorationBreak(String value) {
    setProperty('box-decoration-break', value, '');
  }

  /** Gets the value of "box-direction" */
  String get boxDirection => getPropertyValue('box-direction');

  /** Sets the value of "box-direction" */
  set boxDirection(String value) {
    setProperty('box-direction', value, '');
  }

  /** Gets the value of "box-flex" */
  String get boxFlex => getPropertyValue('box-flex');

  /** Sets the value of "box-flex" */
  set boxFlex(String value) {
    setProperty('box-flex', value, '');
  }

  /** Gets the value of "box-flex-group" */
  String get boxFlexGroup => getPropertyValue('box-flex-group');

  /** Sets the value of "box-flex-group" */
  set boxFlexGroup(String value) {
    setProperty('box-flex-group', value, '');
  }

  /** Gets the value of "box-lines" */
  String get boxLines => getPropertyValue('box-lines');

  /** Sets the value of "box-lines" */
  set boxLines(String value) {
    setProperty('box-lines', value, '');
  }

  /** Gets the value of "box-ordinal-group" */
  String get boxOrdinalGroup => getPropertyValue('box-ordinal-group');

  /** Sets the value of "box-ordinal-group" */
  set boxOrdinalGroup(String value) {
    setProperty('box-ordinal-group', value, '');
  }

  /** Gets the value of "box-orient" */
  String get boxOrient => getPropertyValue('box-orient');

  /** Sets the value of "box-orient" */
  set boxOrient(String value) {
    setProperty('box-orient', value, '');
  }

  /** Gets the value of "box-pack" */
  String get boxPack => getPropertyValue('box-pack');

  /** Sets the value of "box-pack" */
  set boxPack(String value) {
    setProperty('box-pack', value, '');
  }

  /** Gets the value of "box-reflect" */
  String get boxReflect => getPropertyValue('box-reflect');

  /** Sets the value of "box-reflect" */
  set boxReflect(String value) {
    setProperty('box-reflect', value, '');
  }

  /** Gets the value of "box-shadow" */
  String get boxShadow => getPropertyValue('box-shadow');

  /** Sets the value of "box-shadow" */
  set boxShadow(String value) {
    setProperty('box-shadow', value, '');
  }

  /** Gets the value of "box-sizing" */
  String get boxSizing => getPropertyValue('box-sizing');

  /** Sets the value of "box-sizing" */
  set boxSizing(String value) {
    setProperty('box-sizing', value, '');
  }

  /** Gets the value of "caption-side" */
  String get captionSide => getPropertyValue('caption-side');

  /** Sets the value of "caption-side" */
  set captionSide(String value) {
    setProperty('caption-side', value, '');
  }

  /** Gets the value of "clear" */
  String get clear => getPropertyValue('clear');

  /** Sets the value of "clear" */
  set clear(String value) {
    setProperty('clear', value, '');
  }

  /** Gets the value of "clip" */
  String get clip => getPropertyValue('clip');

  /** Sets the value of "clip" */
  set clip(String value) {
    setProperty('clip', value, '');
  }

  /** Gets the value of "clip-path" */
  String get clipPath => getPropertyValue('clip-path');

  /** Sets the value of "clip-path" */
  set clipPath(String value) {
    setProperty('clip-path', value, '');
  }

  /** Gets the value of "color" */
  String get color => getPropertyValue('color');

  /** Sets the value of "color" */
  set color(String value) {
    setProperty('color', value, '');
  }

  /** Gets the value of "column-break-after" */
  String get columnBreakAfter => getPropertyValue('column-break-after');

  /** Sets the value of "column-break-after" */
  set columnBreakAfter(String value) {
    setProperty('column-break-after', value, '');
  }

  /** Gets the value of "column-break-before" */
  String get columnBreakBefore => getPropertyValue('column-break-before');

  /** Sets the value of "column-break-before" */
  set columnBreakBefore(String value) {
    setProperty('column-break-before', value, '');
  }

  /** Gets the value of "column-break-inside" */
  String get columnBreakInside => getPropertyValue('column-break-inside');

  /** Sets the value of "column-break-inside" */
  set columnBreakInside(String value) {
    setProperty('column-break-inside', value, '');
  }

  /** Gets the value of "column-count" */
  String get columnCount => getPropertyValue('column-count');

  /** Sets the value of "column-count" */
  set columnCount(String value) {
    setProperty('column-count', value, '');
  }

  /** Gets the value of "column-fill" */
  String get columnFill => getPropertyValue('column-fill');

  /** Sets the value of "column-fill" */
  set columnFill(String value) {
    setProperty('column-fill', value, '');
  }

  /** Gets the value of "column-gap" */
  String get columnGap => getPropertyValue('column-gap');

  /** Sets the value of "column-gap" */
  set columnGap(String value) {
    setProperty('column-gap', value, '');
  }

  /** Gets the value of "column-rule" */
  String get columnRule => getPropertyValue('column-rule');

  /** Sets the value of "column-rule" */
  set columnRule(String value) {
    setProperty('column-rule', value, '');
  }

  /** Gets the value of "column-rule-color" */
  String get columnRuleColor => getPropertyValue('column-rule-color');

  /** Sets the value of "column-rule-color" */
  set columnRuleColor(String value) {
    setProperty('column-rule-color', value, '');
  }

  /** Gets the value of "column-rule-style" */
  String get columnRuleStyle => getPropertyValue('column-rule-style');

  /** Sets the value of "column-rule-style" */
  set columnRuleStyle(String value) {
    setProperty('column-rule-style', value, '');
  }

  /** Gets the value of "column-rule-width" */
  String get columnRuleWidth => getPropertyValue('column-rule-width');

  /** Sets the value of "column-rule-width" */
  set columnRuleWidth(String value) {
    setProperty('column-rule-width', value, '');
  }

  /** Gets the value of "column-span" */
  String get columnSpan => getPropertyValue('column-span');

  /** Sets the value of "column-span" */
  set columnSpan(String value) {
    setProperty('column-span', value, '');
  }

  /** Gets the value of "column-width" */
  String get columnWidth => getPropertyValue('column-width');

  /** Sets the value of "column-width" */
  set columnWidth(String value) {
    setProperty('column-width', value, '');
  }

  /** Gets the value of "columns" */
  String get columns => getPropertyValue('columns');

  /** Sets the value of "columns" */
  set columns(String value) {
    setProperty('columns', value, '');
  }

  /** Gets the value of "content" */
  String get content => getPropertyValue('content');

  /** Sets the value of "content" */
  set content(String value) {
    setProperty('content', value, '');
  }

  /** Gets the value of "counter-increment" */
  String get counterIncrement => getPropertyValue('counter-increment');

  /** Sets the value of "counter-increment" */
  set counterIncrement(String value) {
    setProperty('counter-increment', value, '');
  }

  /** Gets the value of "counter-reset" */
  String get counterReset => getPropertyValue('counter-reset');

  /** Sets the value of "counter-reset" */
  set counterReset(String value) {
    setProperty('counter-reset', value, '');
  }

  /** Gets the value of "cursor" */
  String get cursor => getPropertyValue('cursor');

  /** Sets the value of "cursor" */
  set cursor(String value) {
    setProperty('cursor', value, '');
  }

  /** Gets the value of "direction" */
  String get direction => getPropertyValue('direction');

  /** Sets the value of "direction" */
  set direction(String value) {
    setProperty('direction', value, '');
  }

  /** Gets the value of "display" */
  String get display => getPropertyValue('display');

  /** Sets the value of "display" */
  set display(String value) {
    setProperty('display', value, '');
  }

  /** Gets the value of "empty-cells" */
  String get emptyCells => getPropertyValue('empty-cells');

  /** Sets the value of "empty-cells" */
  set emptyCells(String value) {
    setProperty('empty-cells', value, '');
  }

  /** Gets the value of "filter" */
  String get filter => getPropertyValue('filter');

  /** Sets the value of "filter" */
  set filter(String value) {
    setProperty('filter', value, '');
  }

  /** Gets the value of "flex" */
  String get flex => getPropertyValue('flex');

  /** Sets the value of "flex" */
  set flex(String value) {
    setProperty('flex', value, '');
  }

  /** Gets the value of "flex-basis" */
  String get flexBasis => getPropertyValue('flex-basis');

  /** Sets the value of "flex-basis" */
  set flexBasis(String value) {
    setProperty('flex-basis', value, '');
  }

  /** Gets the value of "flex-direction" */
  String get flexDirection => getPropertyValue('flex-direction');

  /** Sets the value of "flex-direction" */
  set flexDirection(String value) {
    setProperty('flex-direction', value, '');
  }

  /** Gets the value of "flex-flow" */
  String get flexFlow => getPropertyValue('flex-flow');

  /** Sets the value of "flex-flow" */
  set flexFlow(String value) {
    setProperty('flex-flow', value, '');
  }

  /** Gets the value of "flex-grow" */
  String get flexGrow => getPropertyValue('flex-grow');

  /** Sets the value of "flex-grow" */
  set flexGrow(String value) {
    setProperty('flex-grow', value, '');
  }

  /** Gets the value of "flex-shrink" */
  String get flexShrink => getPropertyValue('flex-shrink');

  /** Sets the value of "flex-shrink" */
  set flexShrink(String value) {
    setProperty('flex-shrink', value, '');
  }

  /** Gets the value of "flex-wrap" */
  String get flexWrap => getPropertyValue('flex-wrap');

  /** Sets the value of "flex-wrap" */
  set flexWrap(String value) {
    setProperty('flex-wrap', value, '');
  }

  /** Gets the value of "float" */
  String get float => getPropertyValue('float');

  /** Sets the value of "float" */
  set float(String value) {
    setProperty('float', value, '');
  }

  /** Gets the value of "font" */
  String get font => getPropertyValue('font');

  /** Sets the value of "font" */
  set font(String value) {
    setProperty('font', value, '');
  }

  /** Gets the value of "font-family" */
  String get fontFamily => getPropertyValue('font-family');

  /** Sets the value of "font-family" */
  set fontFamily(String value) {
    setProperty('font-family', value, '');
  }

  /** Gets the value of "font-feature-settings" */
  String get fontFeatureSettings => getPropertyValue('font-feature-settings');

  /** Sets the value of "font-feature-settings" */
  set fontFeatureSettings(String value) {
    setProperty('font-feature-settings', value, '');
  }

  /** Gets the value of "font-kerning" */
  String get fontKerning => getPropertyValue('font-kerning');

  /** Sets the value of "font-kerning" */
  set fontKerning(String value) {
    setProperty('font-kerning', value, '');
  }

  /** Gets the value of "font-size" */
  String get fontSize => getPropertyValue('font-size');

  /** Sets the value of "font-size" */
  set fontSize(String value) {
    setProperty('font-size', value, '');
  }

  /** Gets the value of "font-size-delta" */
  String get fontSizeDelta => getPropertyValue('font-size-delta');

  /** Sets the value of "font-size-delta" */
  set fontSizeDelta(String value) {
    setProperty('font-size-delta', value, '');
  }

  /** Gets the value of "font-smoothing" */
  String get fontSmoothing => getPropertyValue('font-smoothing');

  /** Sets the value of "font-smoothing" */
  set fontSmoothing(String value) {
    setProperty('font-smoothing', value, '');
  }

  /** Gets the value of "font-stretch" */
  String get fontStretch => getPropertyValue('font-stretch');

  /** Sets the value of "font-stretch" */
  set fontStretch(String value) {
    setProperty('font-stretch', value, '');
  }

  /** Gets the value of "font-style" */
  String get fontStyle => getPropertyValue('font-style');

  /** Sets the value of "font-style" */
  set fontStyle(String value) {
    setProperty('font-style', value, '');
  }

  /** Gets the value of "font-variant" */
  String get fontVariant => getPropertyValue('font-variant');

  /** Sets the value of "font-variant" */
  set fontVariant(String value) {
    setProperty('font-variant', value, '');
  }

  /** Gets the value of "font-variant-ligatures" */
  String get fontVariantLigatures => getPropertyValue('font-variant-ligatures');

  /** Sets the value of "font-variant-ligatures" */
  set fontVariantLigatures(String value) {
    setProperty('font-variant-ligatures', value, '');
  }

  /** Gets the value of "font-weight" */
  String get fontWeight => getPropertyValue('font-weight');

  /** Sets the value of "font-weight" */
  set fontWeight(String value) {
    setProperty('font-weight', value, '');
  }

  /** Gets the value of "grid" */
  String get grid => getPropertyValue('grid');

  /** Sets the value of "grid" */
  set grid(String value) {
    setProperty('grid', value, '');
  }

  /** Gets the value of "grid-area" */
  String get gridArea => getPropertyValue('grid-area');

  /** Sets the value of "grid-area" */
  set gridArea(String value) {
    setProperty('grid-area', value, '');
  }

  /** Gets the value of "grid-auto-columns" */
  String get gridAutoColumns => getPropertyValue('grid-auto-columns');

  /** Sets the value of "grid-auto-columns" */
  set gridAutoColumns(String value) {
    setProperty('grid-auto-columns', value, '');
  }

  /** Gets the value of "grid-auto-flow" */
  String get gridAutoFlow => getPropertyValue('grid-auto-flow');

  /** Sets the value of "grid-auto-flow" */
  set gridAutoFlow(String value) {
    setProperty('grid-auto-flow', value, '');
  }

  /** Gets the value of "grid-auto-rows" */
  String get gridAutoRows => getPropertyValue('grid-auto-rows');

  /** Sets the value of "grid-auto-rows" */
  set gridAutoRows(String value) {
    setProperty('grid-auto-rows', value, '');
  }

  /** Gets the value of "grid-column" */
  String get gridColumn => getPropertyValue('grid-column');

  /** Sets the value of "grid-column" */
  set gridColumn(String value) {
    setProperty('grid-column', value, '');
  }

  /** Gets the value of "grid-column-end" */
  String get gridColumnEnd => getPropertyValue('grid-column-end');

  /** Sets the value of "grid-column-end" */
  set gridColumnEnd(String value) {
    setProperty('grid-column-end', value, '');
  }

  /** Gets the value of "grid-column-start" */
  String get gridColumnStart => getPropertyValue('grid-column-start');

  /** Sets the value of "grid-column-start" */
  set gridColumnStart(String value) {
    setProperty('grid-column-start', value, '');
  }

  /** Gets the value of "grid-row" */
  String get gridRow => getPropertyValue('grid-row');

  /** Sets the value of "grid-row" */
  set gridRow(String value) {
    setProperty('grid-row', value, '');
  }

  /** Gets the value of "grid-row-end" */
  String get gridRowEnd => getPropertyValue('grid-row-end');

  /** Sets the value of "grid-row-end" */
  set gridRowEnd(String value) {
    setProperty('grid-row-end', value, '');
  }

  /** Gets the value of "grid-row-start" */
  String get gridRowStart => getPropertyValue('grid-row-start');

  /** Sets the value of "grid-row-start" */
  set gridRowStart(String value) {
    setProperty('grid-row-start', value, '');
  }

  /** Gets the value of "grid-template" */
  String get gridTemplate => getPropertyValue('grid-template');

  /** Sets the value of "grid-template" */
  set gridTemplate(String value) {
    setProperty('grid-template', value, '');
  }

  /** Gets the value of "grid-template-areas" */
  String get gridTemplateAreas => getPropertyValue('grid-template-areas');

  /** Sets the value of "grid-template-areas" */
  set gridTemplateAreas(String value) {
    setProperty('grid-template-areas', value, '');
  }

  /** Gets the value of "grid-template-columns" */
  String get gridTemplateColumns => getPropertyValue('grid-template-columns');

  /** Sets the value of "grid-template-columns" */
  set gridTemplateColumns(String value) {
    setProperty('grid-template-columns', value, '');
  }

  /** Gets the value of "grid-template-rows" */
  String get gridTemplateRows => getPropertyValue('grid-template-rows');

  /** Sets the value of "grid-template-rows" */
  set gridTemplateRows(String value) {
    setProperty('grid-template-rows', value, '');
  }

  /** Gets the value of "height" */
  String get height => getPropertyValue('height');

  /** Sets the value of "height" */
  set height(String value) {
    setProperty('height', value, '');
  }

  /** Gets the value of "highlight" */
  String get highlight => getPropertyValue('highlight');

  /** Sets the value of "highlight" */
  set highlight(String value) {
    setProperty('highlight', value, '');
  }

  /** Gets the value of "hyphenate-character" */
  String get hyphenateCharacter => getPropertyValue('hyphenate-character');

  /** Sets the value of "hyphenate-character" */
  set hyphenateCharacter(String value) {
    setProperty('hyphenate-character', value, '');
  }

  /** Gets the value of "image-rendering" */
  String get imageRendering => getPropertyValue('image-rendering');

  /** Sets the value of "image-rendering" */
  set imageRendering(String value) {
    setProperty('image-rendering', value, '');
  }

  /** Gets the value of "isolation" */
  String get isolation => getPropertyValue('isolation');

  /** Sets the value of "isolation" */
  set isolation(String value) {
    setProperty('isolation', value, '');
  }

  /** Gets the value of "justify-content" */
  String get justifyContent => getPropertyValue('justify-content');

  /** Sets the value of "justify-content" */
  set justifyContent(String value) {
    setProperty('justify-content', value, '');
  }

  /** Gets the value of "justify-self" */
  String get justifySelf => getPropertyValue('justify-self');

  /** Sets the value of "justify-self" */
  set justifySelf(String value) {
    setProperty('justify-self', value, '');
  }

  /** Gets the value of "left" */
  String get left => getPropertyValue('left');

  /** Sets the value of "left" */
  set left(String value) {
    setProperty('left', value, '');
  }

  /** Gets the value of "letter-spacing" */
  String get letterSpacing => getPropertyValue('letter-spacing');

  /** Sets the value of "letter-spacing" */
  set letterSpacing(String value) {
    setProperty('letter-spacing', value, '');
  }

  /** Gets the value of "line-box-contain" */
  String get lineBoxContain => getPropertyValue('line-box-contain');

  /** Sets the value of "line-box-contain" */
  set lineBoxContain(String value) {
    setProperty('line-box-contain', value, '');
  }

  /** Gets the value of "line-break" */
  String get lineBreak => getPropertyValue('line-break');

  /** Sets the value of "line-break" */
  set lineBreak(String value) {
    setProperty('line-break', value, '');
  }

  /** Gets the value of "line-clamp" */
  String get lineClamp => getPropertyValue('line-clamp');

  /** Sets the value of "line-clamp" */
  set lineClamp(String value) {
    setProperty('line-clamp', value, '');
  }

  /** Gets the value of "line-height" */
  String get lineHeight => getPropertyValue('line-height');

  /** Sets the value of "line-height" */
  set lineHeight(String value) {
    setProperty('line-height', value, '');
  }

  /** Gets the value of "list-style" */
  String get listStyle => getPropertyValue('list-style');

  /** Sets the value of "list-style" */
  set listStyle(String value) {
    setProperty('list-style', value, '');
  }

  /** Gets the value of "list-style-image" */
  String get listStyleImage => getPropertyValue('list-style-image');

  /** Sets the value of "list-style-image" */
  set listStyleImage(String value) {
    setProperty('list-style-image', value, '');
  }

  /** Gets the value of "list-style-position" */
  String get listStylePosition => getPropertyValue('list-style-position');

  /** Sets the value of "list-style-position" */
  set listStylePosition(String value) {
    setProperty('list-style-position', value, '');
  }

  /** Gets the value of "list-style-type" */
  String get listStyleType => getPropertyValue('list-style-type');

  /** Sets the value of "list-style-type" */
  set listStyleType(String value) {
    setProperty('list-style-type', value, '');
  }

  /** Gets the value of "locale" */
  String get locale => getPropertyValue('locale');

  /** Sets the value of "locale" */
  set locale(String value) {
    setProperty('locale', value, '');
  }

  /** Gets the value of "logical-height" */
  String get logicalHeight => getPropertyValue('logical-height');

  /** Sets the value of "logical-height" */
  set logicalHeight(String value) {
    setProperty('logical-height', value, '');
  }

  /** Gets the value of "logical-width" */
  String get logicalWidth => getPropertyValue('logical-width');

  /** Sets the value of "logical-width" */
  set logicalWidth(String value) {
    setProperty('logical-width', value, '');
  }

  /** Gets the value of "margin" */
  String get margin => getPropertyValue('margin');

  /** Sets the value of "margin" */
  set margin(String value) {
    setProperty('margin', value, '');
  }

  /** Gets the value of "margin-after" */
  String get marginAfter => getPropertyValue('margin-after');

  /** Sets the value of "margin-after" */
  set marginAfter(String value) {
    setProperty('margin-after', value, '');
  }

  /** Gets the value of "margin-after-collapse" */
  String get marginAfterCollapse => getPropertyValue('margin-after-collapse');

  /** Sets the value of "margin-after-collapse" */
  set marginAfterCollapse(String value) {
    setProperty('margin-after-collapse', value, '');
  }

  /** Gets the value of "margin-before" */
  String get marginBefore => getPropertyValue('margin-before');

  /** Sets the value of "margin-before" */
  set marginBefore(String value) {
    setProperty('margin-before', value, '');
  }

  /** Gets the value of "margin-before-collapse" */
  String get marginBeforeCollapse => getPropertyValue('margin-before-collapse');

  /** Sets the value of "margin-before-collapse" */
  set marginBeforeCollapse(String value) {
    setProperty('margin-before-collapse', value, '');
  }

  /** Gets the value of "margin-bottom" */
  String get marginBottom => getPropertyValue('margin-bottom');

  /** Sets the value of "margin-bottom" */
  set marginBottom(String value) {
    setProperty('margin-bottom', value, '');
  }

  /** Gets the value of "margin-bottom-collapse" */
  String get marginBottomCollapse => getPropertyValue('margin-bottom-collapse');

  /** Sets the value of "margin-bottom-collapse" */
  set marginBottomCollapse(String value) {
    setProperty('margin-bottom-collapse', value, '');
  }

  /** Gets the value of "margin-collapse" */
  String get marginCollapse => getPropertyValue('margin-collapse');

  /** Sets the value of "margin-collapse" */
  set marginCollapse(String value) {
    setProperty('margin-collapse', value, '');
  }

  /** Gets the value of "margin-end" */
  String get marginEnd => getPropertyValue('margin-end');

  /** Sets the value of "margin-end" */
  set marginEnd(String value) {
    setProperty('margin-end', value, '');
  }

  /** Gets the value of "margin-left" */
  String get marginLeft => getPropertyValue('margin-left');

  /** Sets the value of "margin-left" */
  set marginLeft(String value) {
    setProperty('margin-left', value, '');
  }

  /** Gets the value of "margin-right" */
  String get marginRight => getPropertyValue('margin-right');

  /** Sets the value of "margin-right" */
  set marginRight(String value) {
    setProperty('margin-right', value, '');
  }

  /** Gets the value of "margin-start" */
  String get marginStart => getPropertyValue('margin-start');

  /** Sets the value of "margin-start" */
  set marginStart(String value) {
    setProperty('margin-start', value, '');
  }

  /** Gets the value of "margin-top" */
  String get marginTop => getPropertyValue('margin-top');

  /** Sets the value of "margin-top" */
  set marginTop(String value) {
    setProperty('margin-top', value, '');
  }

  /** Gets the value of "margin-top-collapse" */
  String get marginTopCollapse => getPropertyValue('margin-top-collapse');

  /** Sets the value of "margin-top-collapse" */
  set marginTopCollapse(String value) {
    setProperty('margin-top-collapse', value, '');
  }

  /** Gets the value of "mask" */
  String get mask => getPropertyValue('mask');

  /** Sets the value of "mask" */
  set mask(String value) {
    setProperty('mask', value, '');
  }

  /** Gets the value of "mask-box-image" */
  String get maskBoxImage => getPropertyValue('mask-box-image');

  /** Sets the value of "mask-box-image" */
  set maskBoxImage(String value) {
    setProperty('mask-box-image', value, '');
  }

  /** Gets the value of "mask-box-image-outset" */
  String get maskBoxImageOutset => getPropertyValue('mask-box-image-outset');

  /** Sets the value of "mask-box-image-outset" */
  set maskBoxImageOutset(String value) {
    setProperty('mask-box-image-outset', value, '');
  }

  /** Gets the value of "mask-box-image-repeat" */
  String get maskBoxImageRepeat => getPropertyValue('mask-box-image-repeat');

  /** Sets the value of "mask-box-image-repeat" */
  set maskBoxImageRepeat(String value) {
    setProperty('mask-box-image-repeat', value, '');
  }

  /** Gets the value of "mask-box-image-slice" */
  String get maskBoxImageSlice => getPropertyValue('mask-box-image-slice');

  /** Sets the value of "mask-box-image-slice" */
  set maskBoxImageSlice(String value) {
    setProperty('mask-box-image-slice', value, '');
  }

  /** Gets the value of "mask-box-image-source" */
  String get maskBoxImageSource => getPropertyValue('mask-box-image-source');

  /** Sets the value of "mask-box-image-source" */
  set maskBoxImageSource(String value) {
    setProperty('mask-box-image-source', value, '');
  }

  /** Gets the value of "mask-box-image-width" */
  String get maskBoxImageWidth => getPropertyValue('mask-box-image-width');

  /** Sets the value of "mask-box-image-width" */
  set maskBoxImageWidth(String value) {
    setProperty('mask-box-image-width', value, '');
  }

  /** Gets the value of "mask-clip" */
  String get maskClip => getPropertyValue('mask-clip');

  /** Sets the value of "mask-clip" */
  set maskClip(String value) {
    setProperty('mask-clip', value, '');
  }

  /** Gets the value of "mask-composite" */
  String get maskComposite => getPropertyValue('mask-composite');

  /** Sets the value of "mask-composite" */
  set maskComposite(String value) {
    setProperty('mask-composite', value, '');
  }

  /** Gets the value of "mask-image" */
  String get maskImage => getPropertyValue('mask-image');

  /** Sets the value of "mask-image" */
  set maskImage(String value) {
    setProperty('mask-image', value, '');
  }

  /** Gets the value of "mask-origin" */
  String get maskOrigin => getPropertyValue('mask-origin');

  /** Sets the value of "mask-origin" */
  set maskOrigin(String value) {
    setProperty('mask-origin', value, '');
  }

  /** Gets the value of "mask-position" */
  String get maskPosition => getPropertyValue('mask-position');

  /** Sets the value of "mask-position" */
  set maskPosition(String value) {
    setProperty('mask-position', value, '');
  }

  /** Gets the value of "mask-position-x" */
  String get maskPositionX => getPropertyValue('mask-position-x');

  /** Sets the value of "mask-position-x" */
  set maskPositionX(String value) {
    setProperty('mask-position-x', value, '');
  }

  /** Gets the value of "mask-position-y" */
  String get maskPositionY => getPropertyValue('mask-position-y');

  /** Sets the value of "mask-position-y" */
  set maskPositionY(String value) {
    setProperty('mask-position-y', value, '');
  }

  /** Gets the value of "mask-repeat" */
  String get maskRepeat => getPropertyValue('mask-repeat');

  /** Sets the value of "mask-repeat" */
  set maskRepeat(String value) {
    setProperty('mask-repeat', value, '');
  }

  /** Gets the value of "mask-repeat-x" */
  String get maskRepeatX => getPropertyValue('mask-repeat-x');

  /** Sets the value of "mask-repeat-x" */
  set maskRepeatX(String value) {
    setProperty('mask-repeat-x', value, '');
  }

  /** Gets the value of "mask-repeat-y" */
  String get maskRepeatY => getPropertyValue('mask-repeat-y');

  /** Sets the value of "mask-repeat-y" */
  set maskRepeatY(String value) {
    setProperty('mask-repeat-y', value, '');
  }

  /** Gets the value of "mask-size" */
  String get maskSize => getPropertyValue('mask-size');

  /** Sets the value of "mask-size" */
  set maskSize(String value) {
    setProperty('mask-size', value, '');
  }

  /** Gets the value of "mask-source-type" */
  String get maskSourceType => getPropertyValue('mask-source-type');

  /** Sets the value of "mask-source-type" */
  set maskSourceType(String value) {
    setProperty('mask-source-type', value, '');
  }

  /** Gets the value of "max-height" */
  String get maxHeight => getPropertyValue('max-height');

  /** Sets the value of "max-height" */
  set maxHeight(String value) {
    setProperty('max-height', value, '');
  }

  /** Gets the value of "max-logical-height" */
  String get maxLogicalHeight => getPropertyValue('max-logical-height');

  /** Sets the value of "max-logical-height" */
  set maxLogicalHeight(String value) {
    setProperty('max-logical-height', value, '');
  }

  /** Gets the value of "max-logical-width" */
  String get maxLogicalWidth => getPropertyValue('max-logical-width');

  /** Sets the value of "max-logical-width" */
  set maxLogicalWidth(String value) {
    setProperty('max-logical-width', value, '');
  }

  /** Gets the value of "max-width" */
  String get maxWidth => getPropertyValue('max-width');

  /** Sets the value of "max-width" */
  set maxWidth(String value) {
    setProperty('max-width', value, '');
  }

  /** Gets the value of "max-zoom" */
  String get maxZoom => getPropertyValue('max-zoom');

  /** Sets the value of "max-zoom" */
  set maxZoom(String value) {
    setProperty('max-zoom', value, '');
  }

  /** Gets the value of "min-height" */
  String get minHeight => getPropertyValue('min-height');

  /** Sets the value of "min-height" */
  set minHeight(String value) {
    setProperty('min-height', value, '');
  }

  /** Gets the value of "min-logical-height" */
  String get minLogicalHeight => getPropertyValue('min-logical-height');

  /** Sets the value of "min-logical-height" */
  set minLogicalHeight(String value) {
    setProperty('min-logical-height', value, '');
  }

  /** Gets the value of "min-logical-width" */
  String get minLogicalWidth => getPropertyValue('min-logical-width');

  /** Sets the value of "min-logical-width" */
  set minLogicalWidth(String value) {
    setProperty('min-logical-width', value, '');
  }

  /** Gets the value of "min-width" */
  String get minWidth => getPropertyValue('min-width');

  /** Sets the value of "min-width" */
  set minWidth(String value) {
    setProperty('min-width', value, '');
  }

  /** Gets the value of "min-zoom" */
  String get minZoom => getPropertyValue('min-zoom');

  /** Sets the value of "min-zoom" */
  set minZoom(String value) {
    setProperty('min-zoom', value, '');
  }

  /** Gets the value of "mix-blend-mode" */
  String get mixBlendMode => getPropertyValue('mix-blend-mode');

  /** Sets the value of "mix-blend-mode" */
  set mixBlendMode(String value) {
    setProperty('mix-blend-mode', value, '');
  }

  /** Gets the value of "object-fit" */
  String get objectFit => getPropertyValue('object-fit');

  /** Sets the value of "object-fit" */
  set objectFit(String value) {
    setProperty('object-fit', value, '');
  }

  /** Gets the value of "object-position" */
  String get objectPosition => getPropertyValue('object-position');

  /** Sets the value of "object-position" */
  set objectPosition(String value) {
    setProperty('object-position', value, '');
  }

  /** Gets the value of "opacity" */
  String get opacity => getPropertyValue('opacity');

  /** Sets the value of "opacity" */
  set opacity(String value) {
    setProperty('opacity', value, '');
  }

  /** Gets the value of "order" */
  String get order => getPropertyValue('order');

  /** Sets the value of "order" */
  set order(String value) {
    setProperty('order', value, '');
  }

  /** Gets the value of "orientation" */
  String get orientation => getPropertyValue('orientation');

  /** Sets the value of "orientation" */
  set orientation(String value) {
    setProperty('orientation', value, '');
  }

  /** Gets the value of "orphans" */
  String get orphans => getPropertyValue('orphans');

  /** Sets the value of "orphans" */
  set orphans(String value) {
    setProperty('orphans', value, '');
  }

  /** Gets the value of "outline" */
  String get outline => getPropertyValue('outline');

  /** Sets the value of "outline" */
  set outline(String value) {
    setProperty('outline', value, '');
  }

  /** Gets the value of "outline-color" */
  String get outlineColor => getPropertyValue('outline-color');

  /** Sets the value of "outline-color" */
  set outlineColor(String value) {
    setProperty('outline-color', value, '');
  }

  /** Gets the value of "outline-offset" */
  String get outlineOffset => getPropertyValue('outline-offset');

  /** Sets the value of "outline-offset" */
  set outlineOffset(String value) {
    setProperty('outline-offset', value, '');
  }

  /** Gets the value of "outline-style" */
  String get outlineStyle => getPropertyValue('outline-style');

  /** Sets the value of "outline-style" */
  set outlineStyle(String value) {
    setProperty('outline-style', value, '');
  }

  /** Gets the value of "outline-width" */
  String get outlineWidth => getPropertyValue('outline-width');

  /** Sets the value of "outline-width" */
  set outlineWidth(String value) {
    setProperty('outline-width', value, '');
  }

  /** Gets the value of "overflow" */
  String get overflow => getPropertyValue('overflow');

  /** Sets the value of "overflow" */
  set overflow(String value) {
    setProperty('overflow', value, '');
  }

  /** Gets the value of "overflow-wrap" */
  String get overflowWrap => getPropertyValue('overflow-wrap');

  /** Sets the value of "overflow-wrap" */
  set overflowWrap(String value) {
    setProperty('overflow-wrap', value, '');
  }

  /** Gets the value of "overflow-x" */
  String get overflowX => getPropertyValue('overflow-x');

  /** Sets the value of "overflow-x" */
  set overflowX(String value) {
    setProperty('overflow-x', value, '');
  }

  /** Gets the value of "overflow-y" */
  String get overflowY => getPropertyValue('overflow-y');

  /** Sets the value of "overflow-y" */
  set overflowY(String value) {
    setProperty('overflow-y', value, '');
  }

  /** Gets the value of "padding" */
  String get padding => getPropertyValue('padding');

  /** Sets the value of "padding" */
  set padding(String value) {
    setProperty('padding', value, '');
  }

  /** Gets the value of "padding-after" */
  String get paddingAfter => getPropertyValue('padding-after');

  /** Sets the value of "padding-after" */
  set paddingAfter(String value) {
    setProperty('padding-after', value, '');
  }

  /** Gets the value of "padding-before" */
  String get paddingBefore => getPropertyValue('padding-before');

  /** Sets the value of "padding-before" */
  set paddingBefore(String value) {
    setProperty('padding-before', value, '');
  }

  /** Gets the value of "padding-bottom" */
  String get paddingBottom => getPropertyValue('padding-bottom');

  /** Sets the value of "padding-bottom" */
  set paddingBottom(String value) {
    setProperty('padding-bottom', value, '');
  }

  /** Gets the value of "padding-end" */
  String get paddingEnd => getPropertyValue('padding-end');

  /** Sets the value of "padding-end" */
  set paddingEnd(String value) {
    setProperty('padding-end', value, '');
  }

  /** Gets the value of "padding-left" */
  String get paddingLeft => getPropertyValue('padding-left');

  /** Sets the value of "padding-left" */
  set paddingLeft(String value) {
    setProperty('padding-left', value, '');
  }

  /** Gets the value of "padding-right" */
  String get paddingRight => getPropertyValue('padding-right');

  /** Sets the value of "padding-right" */
  set paddingRight(String value) {
    setProperty('padding-right', value, '');
  }

  /** Gets the value of "padding-start" */
  String get paddingStart => getPropertyValue('padding-start');

  /** Sets the value of "padding-start" */
  set paddingStart(String value) {
    setProperty('padding-start', value, '');
  }

  /** Gets the value of "padding-top" */
  String get paddingTop => getPropertyValue('padding-top');

  /** Sets the value of "padding-top" */
  set paddingTop(String value) {
    setProperty('padding-top', value, '');
  }

  /** Gets the value of "page" */
  String get page => getPropertyValue('page');

  /** Sets the value of "page" */
  set page(String value) {
    setProperty('page', value, '');
  }

  /** Gets the value of "page-break-after" */
  String get pageBreakAfter => getPropertyValue('page-break-after');

  /** Sets the value of "page-break-after" */
  set pageBreakAfter(String value) {
    setProperty('page-break-after', value, '');
  }

  /** Gets the value of "page-break-before" */
  String get pageBreakBefore => getPropertyValue('page-break-before');

  /** Sets the value of "page-break-before" */
  set pageBreakBefore(String value) {
    setProperty('page-break-before', value, '');
  }

  /** Gets the value of "page-break-inside" */
  String get pageBreakInside => getPropertyValue('page-break-inside');

  /** Sets the value of "page-break-inside" */
  set pageBreakInside(String value) {
    setProperty('page-break-inside', value, '');
  }

  /** Gets the value of "perspective" */
  String get perspective => getPropertyValue('perspective');

  /** Sets the value of "perspective" */
  set perspective(String value) {
    setProperty('perspective', value, '');
  }

  /** Gets the value of "perspective-origin" */
  String get perspectiveOrigin => getPropertyValue('perspective-origin');

  /** Sets the value of "perspective-origin" */
  set perspectiveOrigin(String value) {
    setProperty('perspective-origin', value, '');
  }

  /** Gets the value of "perspective-origin-x" */
  String get perspectiveOriginX => getPropertyValue('perspective-origin-x');

  /** Sets the value of "perspective-origin-x" */
  set perspectiveOriginX(String value) {
    setProperty('perspective-origin-x', value, '');
  }

  /** Gets the value of "perspective-origin-y" */
  String get perspectiveOriginY => getPropertyValue('perspective-origin-y');

  /** Sets the value of "perspective-origin-y" */
  set perspectiveOriginY(String value) {
    setProperty('perspective-origin-y', value, '');
  }

  /** Gets the value of "pointer-events" */
  String get pointerEvents => getPropertyValue('pointer-events');

  /** Sets the value of "pointer-events" */
  set pointerEvents(String value) {
    setProperty('pointer-events', value, '');
  }

  /** Gets the value of "position" */
  String get position => getPropertyValue('position');

  /** Sets the value of "position" */
  set position(String value) {
    setProperty('position', value, '');
  }

  /** Gets the value of "print-color-adjust" */
  String get printColorAdjust => getPropertyValue('print-color-adjust');

  /** Sets the value of "print-color-adjust" */
  set printColorAdjust(String value) {
    setProperty('print-color-adjust', value, '');
  }

  /** Gets the value of "quotes" */
  String get quotes => getPropertyValue('quotes');

  /** Sets the value of "quotes" */
  set quotes(String value) {
    setProperty('quotes', value, '');
  }

  /** Gets the value of "resize" */
  String get resize => getPropertyValue('resize');

  /** Sets the value of "resize" */
  set resize(String value) {
    setProperty('resize', value, '');
  }

  /** Gets the value of "right" */
  String get right => getPropertyValue('right');

  /** Sets the value of "right" */
  set right(String value) {
    setProperty('right', value, '');
  }

  /** Gets the value of "rtl-ordering" */
  String get rtlOrdering => getPropertyValue('rtl-ordering');

  /** Sets the value of "rtl-ordering" */
  set rtlOrdering(String value) {
    setProperty('rtl-ordering', value, '');
  }

  /** Gets the value of "ruby-position" */
  String get rubyPosition => getPropertyValue('ruby-position');

  /** Sets the value of "ruby-position" */
  set rubyPosition(String value) {
    setProperty('ruby-position', value, '');
  }

  /** Gets the value of "scroll-behavior" */
  String get scrollBehavior => getPropertyValue('scroll-behavior');

  /** Sets the value of "scroll-behavior" */
  set scrollBehavior(String value) {
    setProperty('scroll-behavior', value, '');
  }

  /** Gets the value of "shape-image-threshold" */
  String get shapeImageThreshold => getPropertyValue('shape-image-threshold');

  /** Sets the value of "shape-image-threshold" */
  set shapeImageThreshold(String value) {
    setProperty('shape-image-threshold', value, '');
  }

  /** Gets the value of "shape-margin" */
  String get shapeMargin => getPropertyValue('shape-margin');

  /** Sets the value of "shape-margin" */
  set shapeMargin(String value) {
    setProperty('shape-margin', value, '');
  }

  /** Gets the value of "shape-outside" */
  String get shapeOutside => getPropertyValue('shape-outside');

  /** Sets the value of "shape-outside" */
  set shapeOutside(String value) {
    setProperty('shape-outside', value, '');
  }

  /** Gets the value of "size" */
  String get size => getPropertyValue('size');

  /** Sets the value of "size" */
  set size(String value) {
    setProperty('size', value, '');
  }

  /** Gets the value of "speak" */
  String get speak => getPropertyValue('speak');

  /** Sets the value of "speak" */
  set speak(String value) {
    setProperty('speak', value, '');
  }

  /** Gets the value of "src" */
  String get src => getPropertyValue('src');

  /** Sets the value of "src" */
  set src(String value) {
    setProperty('src', value, '');
  }

  /** Gets the value of "tab-size" */
  String get tabSize => getPropertyValue('tab-size');

  /** Sets the value of "tab-size" */
  set tabSize(String value) {
    setProperty('tab-size', value, '');
  }

  /** Gets the value of "table-layout" */
  String get tableLayout => getPropertyValue('table-layout');

  /** Sets the value of "table-layout" */
  set tableLayout(String value) {
    setProperty('table-layout', value, '');
  }

  /** Gets the value of "tap-highlight-color" */
  String get tapHighlightColor => getPropertyValue('tap-highlight-color');

  /** Sets the value of "tap-highlight-color" */
  set tapHighlightColor(String value) {
    setProperty('tap-highlight-color', value, '');
  }

  /** Gets the value of "text-align" */
  String get textAlign => getPropertyValue('text-align');

  /** Sets the value of "text-align" */
  set textAlign(String value) {
    setProperty('text-align', value, '');
  }

  /** Gets the value of "text-align-last" */
  String get textAlignLast => getPropertyValue('text-align-last');

  /** Sets the value of "text-align-last" */
  set textAlignLast(String value) {
    setProperty('text-align-last', value, '');
  }

  /** Gets the value of "text-combine" */
  String get textCombine => getPropertyValue('text-combine');

  /** Sets the value of "text-combine" */
  set textCombine(String value) {
    setProperty('text-combine', value, '');
  }

  /** Gets the value of "text-decoration" */
  String get textDecoration => getPropertyValue('text-decoration');

  /** Sets the value of "text-decoration" */
  set textDecoration(String value) {
    setProperty('text-decoration', value, '');
  }

  /** Gets the value of "text-decoration-color" */
  String get textDecorationColor => getPropertyValue('text-decoration-color');

  /** Sets the value of "text-decoration-color" */
  set textDecorationColor(String value) {
    setProperty('text-decoration-color', value, '');
  }

  /** Gets the value of "text-decoration-line" */
  String get textDecorationLine => getPropertyValue('text-decoration-line');

  /** Sets the value of "text-decoration-line" */
  set textDecorationLine(String value) {
    setProperty('text-decoration-line', value, '');
  }

  /** Gets the value of "text-decoration-style" */
  String get textDecorationStyle => getPropertyValue('text-decoration-style');

  /** Sets the value of "text-decoration-style" */
  set textDecorationStyle(String value) {
    setProperty('text-decoration-style', value, '');
  }

  /** Gets the value of "text-decorations-in-effect" */
  String get textDecorationsInEffect =>
      getPropertyValue('text-decorations-in-effect');

  /** Sets the value of "text-decorations-in-effect" */
  set textDecorationsInEffect(String value) {
    setProperty('text-decorations-in-effect', value, '');
  }

  /** Gets the value of "text-emphasis" */
  String get textEmphasis => getPropertyValue('text-emphasis');

  /** Sets the value of "text-emphasis" */
  set textEmphasis(String value) {
    setProperty('text-emphasis', value, '');
  }

  /** Gets the value of "text-emphasis-color" */
  String get textEmphasisColor => getPropertyValue('text-emphasis-color');

  /** Sets the value of "text-emphasis-color" */
  set textEmphasisColor(String value) {
    setProperty('text-emphasis-color', value, '');
  }

  /** Gets the value of "text-emphasis-position" */
  String get textEmphasisPosition => getPropertyValue('text-emphasis-position');

  /** Sets the value of "text-emphasis-position" */
  set textEmphasisPosition(String value) {
    setProperty('text-emphasis-position', value, '');
  }

  /** Gets the value of "text-emphasis-style" */
  String get textEmphasisStyle => getPropertyValue('text-emphasis-style');

  /** Sets the value of "text-emphasis-style" */
  set textEmphasisStyle(String value) {
    setProperty('text-emphasis-style', value, '');
  }

  /** Gets the value of "text-fill-color" */
  String get textFillColor => getPropertyValue('text-fill-color');

  /** Sets the value of "text-fill-color" */
  set textFillColor(String value) {
    setProperty('text-fill-color', value, '');
  }

  /** Gets the value of "text-indent" */
  String get textIndent => getPropertyValue('text-indent');

  /** Sets the value of "text-indent" */
  set textIndent(String value) {
    setProperty('text-indent', value, '');
  }

  /** Gets the value of "text-justify" */
  String get textJustify => getPropertyValue('text-justify');

  /** Sets the value of "text-justify" */
  set textJustify(String value) {
    setProperty('text-justify', value, '');
  }

  /** Gets the value of "text-line-through-color" */
  String get textLineThroughColor =>
      getPropertyValue('text-line-through-color');

  /** Sets the value of "text-line-through-color" */
  set textLineThroughColor(String value) {
    setProperty('text-line-through-color', value, '');
  }

  /** Gets the value of "text-line-through-mode" */
  String get textLineThroughMode => getPropertyValue('text-line-through-mode');

  /** Sets the value of "text-line-through-mode" */
  set textLineThroughMode(String value) {
    setProperty('text-line-through-mode', value, '');
  }

  /** Gets the value of "text-line-through-style" */
  String get textLineThroughStyle =>
      getPropertyValue('text-line-through-style');

  /** Sets the value of "text-line-through-style" */
  set textLineThroughStyle(String value) {
    setProperty('text-line-through-style', value, '');
  }

  /** Gets the value of "text-line-through-width" */
  String get textLineThroughWidth =>
      getPropertyValue('text-line-through-width');

  /** Sets the value of "text-line-through-width" */
  set textLineThroughWidth(String value) {
    setProperty('text-line-through-width', value, '');
  }

  /** Gets the value of "text-orientation" */
  String get textOrientation => getPropertyValue('text-orientation');

  /** Sets the value of "text-orientation" */
  set textOrientation(String value) {
    setProperty('text-orientation', value, '');
  }

  /** Gets the value of "text-overflow" */
  String get textOverflow => getPropertyValue('text-overflow');

  /** Sets the value of "text-overflow" */
  set textOverflow(String value) {
    setProperty('text-overflow', value, '');
  }

  /** Gets the value of "text-overline-color" */
  String get textOverlineColor => getPropertyValue('text-overline-color');

  /** Sets the value of "text-overline-color" */
  set textOverlineColor(String value) {
    setProperty('text-overline-color', value, '');
  }

  /** Gets the value of "text-overline-mode" */
  String get textOverlineMode => getPropertyValue('text-overline-mode');

  /** Sets the value of "text-overline-mode" */
  set textOverlineMode(String value) {
    setProperty('text-overline-mode', value, '');
  }

  /** Gets the value of "text-overline-style" */
  String get textOverlineStyle => getPropertyValue('text-overline-style');

  /** Sets the value of "text-overline-style" */
  set textOverlineStyle(String value) {
    setProperty('text-overline-style', value, '');
  }

  /** Gets the value of "text-overline-width" */
  String get textOverlineWidth => getPropertyValue('text-overline-width');

  /** Sets the value of "text-overline-width" */
  set textOverlineWidth(String value) {
    setProperty('text-overline-width', value, '');
  }

  /** Gets the value of "text-rendering" */
  String get textRendering => getPropertyValue('text-rendering');

  /** Sets the value of "text-rendering" */
  set textRendering(String value) {
    setProperty('text-rendering', value, '');
  }

  /** Gets the value of "text-security" */
  String get textSecurity => getPropertyValue('text-security');

  /** Sets the value of "text-security" */
  set textSecurity(String value) {
    setProperty('text-security', value, '');
  }

  /** Gets the value of "text-shadow" */
  String get textShadow => getPropertyValue('text-shadow');

  /** Sets the value of "text-shadow" */
  set textShadow(String value) {
    setProperty('text-shadow', value, '');
  }

  /** Gets the value of "text-stroke" */
  String get textStroke => getPropertyValue('text-stroke');

  /** Sets the value of "text-stroke" */
  set textStroke(String value) {
    setProperty('text-stroke', value, '');
  }

  /** Gets the value of "text-stroke-color" */
  String get textStrokeColor => getPropertyValue('text-stroke-color');

  /** Sets the value of "text-stroke-color" */
  set textStrokeColor(String value) {
    setProperty('text-stroke-color', value, '');
  }

  /** Gets the value of "text-stroke-width" */
  String get textStrokeWidth => getPropertyValue('text-stroke-width');

  /** Sets the value of "text-stroke-width" */
  set textStrokeWidth(String value) {
    setProperty('text-stroke-width', value, '');
  }

  /** Gets the value of "text-transform" */
  String get textTransform => getPropertyValue('text-transform');

  /** Sets the value of "text-transform" */
  set textTransform(String value) {
    setProperty('text-transform', value, '');
  }

  /** Gets the value of "text-underline-color" */
  String get textUnderlineColor => getPropertyValue('text-underline-color');

  /** Sets the value of "text-underline-color" */
  set textUnderlineColor(String value) {
    setProperty('text-underline-color', value, '');
  }

  /** Gets the value of "text-underline-mode" */
  String get textUnderlineMode => getPropertyValue('text-underline-mode');

  /** Sets the value of "text-underline-mode" */
  set textUnderlineMode(String value) {
    setProperty('text-underline-mode', value, '');
  }

  /** Gets the value of "text-underline-position" */
  String get textUnderlinePosition =>
      getPropertyValue('text-underline-position');

  /** Sets the value of "text-underline-position" */
  set textUnderlinePosition(String value) {
    setProperty('text-underline-position', value, '');
  }

  /** Gets the value of "text-underline-style" */
  String get textUnderlineStyle => getPropertyValue('text-underline-style');

  /** Sets the value of "text-underline-style" */
  set textUnderlineStyle(String value) {
    setProperty('text-underline-style', value, '');
  }

  /** Gets the value of "text-underline-width" */
  String get textUnderlineWidth => getPropertyValue('text-underline-width');

  /** Sets the value of "text-underline-width" */
  set textUnderlineWidth(String value) {
    setProperty('text-underline-width', value, '');
  }

  /** Gets the value of "top" */
  String get top => getPropertyValue('top');

  /** Sets the value of "top" */
  set top(String value) {
    setProperty('top', value, '');
  }

  /** Gets the value of "touch-action" */
  String get touchAction => getPropertyValue('touch-action');

  /** Sets the value of "touch-action" */
  set touchAction(String value) {
    setProperty('touch-action', value, '');
  }

  /** Gets the value of "touch-action-delay" */
  String get touchActionDelay => getPropertyValue('touch-action-delay');

  /** Sets the value of "touch-action-delay" */
  set touchActionDelay(String value) {
    setProperty('touch-action-delay', value, '');
  }

  /** Gets the value of "transform" */
  String get transform => getPropertyValue('transform');

  /** Sets the value of "transform" */
  set transform(String value) {
    setProperty('transform', value, '');
  }

  /** Gets the value of "transform-origin" */
  String get transformOrigin => getPropertyValue('transform-origin');

  /** Sets the value of "transform-origin" */
  set transformOrigin(String value) {
    setProperty('transform-origin', value, '');
  }

  /** Gets the value of "transform-origin-x" */
  String get transformOriginX => getPropertyValue('transform-origin-x');

  /** Sets the value of "transform-origin-x" */
  set transformOriginX(String value) {
    setProperty('transform-origin-x', value, '');
  }

  /** Gets the value of "transform-origin-y" */
  String get transformOriginY => getPropertyValue('transform-origin-y');

  /** Sets the value of "transform-origin-y" */
  set transformOriginY(String value) {
    setProperty('transform-origin-y', value, '');
  }

  /** Gets the value of "transform-origin-z" */
  String get transformOriginZ => getPropertyValue('transform-origin-z');

  /** Sets the value of "transform-origin-z" */
  set transformOriginZ(String value) {
    setProperty('transform-origin-z', value, '');
  }

  /** Gets the value of "transform-style" */
  String get transformStyle => getPropertyValue('transform-style');

  /** Sets the value of "transform-style" */
  set transformStyle(String value) {
    setProperty('transform-style', value, '');
  }

  /** Gets the value of "transition" */ @SupportedBrowser(
      SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.FIREFOX)
  @SupportedBrowser(SupportedBrowser.IE, '10')
  @SupportedBrowser(SupportedBrowser.SAFARI)
  String get transition => getPropertyValue('transition');

  /** Sets the value of "transition" */ @SupportedBrowser(
      SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.FIREFOX)
  @SupportedBrowser(SupportedBrowser.IE, '10')
  @SupportedBrowser(SupportedBrowser.SAFARI)
  set transition(String value) {
    setProperty('transition', value, '');
  }

  /** Gets the value of "transition-delay" */
  String get transitionDelay => getPropertyValue('transition-delay');

  /** Sets the value of "transition-delay" */
  set transitionDelay(String value) {
    setProperty('transition-delay', value, '');
  }

  /** Gets the value of "transition-duration" */
  String get transitionDuration => getPropertyValue('transition-duration');

  /** Sets the value of "transition-duration" */
  set transitionDuration(String value) {
    setProperty('transition-duration', value, '');
  }

  /** Gets the value of "transition-property" */
  String get transitionProperty => getPropertyValue('transition-property');

  /** Sets the value of "transition-property" */
  set transitionProperty(String value) {
    setProperty('transition-property', value, '');
  }

  /** Gets the value of "transition-timing-function" */
  String get transitionTimingFunction =>
      getPropertyValue('transition-timing-function');

  /** Sets the value of "transition-timing-function" */
  set transitionTimingFunction(String value) {
    setProperty('transition-timing-function', value, '');
  }

  /** Gets the value of "unicode-bidi" */
  String get unicodeBidi => getPropertyValue('unicode-bidi');

  /** Sets the value of "unicode-bidi" */
  set unicodeBidi(String value) {
    setProperty('unicode-bidi', value, '');
  }

  /** Gets the value of "unicode-range" */
  String get unicodeRange => getPropertyValue('unicode-range');

  /** Sets the value of "unicode-range" */
  set unicodeRange(String value) {
    setProperty('unicode-range', value, '');
  }

  /** Gets the value of "user-drag" */
  String get userDrag => getPropertyValue('user-drag');

  /** Sets the value of "user-drag" */
  set userDrag(String value) {
    setProperty('user-drag', value, '');
  }

  /** Gets the value of "user-modify" */
  String get userModify => getPropertyValue('user-modify');

  /** Sets the value of "user-modify" */
  set userModify(String value) {
    setProperty('user-modify', value, '');
  }

  /** Gets the value of "user-select" */
  String get userSelect => getPropertyValue('user-select');

  /** Sets the value of "user-select" */
  set userSelect(String value) {
    setProperty('user-select', value, '');
  }

  /** Gets the value of "user-zoom" */
  String get userZoom => getPropertyValue('user-zoom');

  /** Sets the value of "user-zoom" */
  set userZoom(String value) {
    setProperty('user-zoom', value, '');
  }

  /** Gets the value of "vertical-align" */
  String get verticalAlign => getPropertyValue('vertical-align');

  /** Sets the value of "vertical-align" */
  set verticalAlign(String value) {
    setProperty('vertical-align', value, '');
  }

  /** Gets the value of "visibility" */
  String get visibility => getPropertyValue('visibility');

  /** Sets the value of "visibility" */
  set visibility(String value) {
    setProperty('visibility', value, '');
  }

  /** Gets the value of "white-space" */
  String get whiteSpace => getPropertyValue('white-space');

  /** Sets the value of "white-space" */
  set whiteSpace(String value) {
    setProperty('white-space', value, '');
  }

  /** Gets the value of "widows" */
  String get widows => getPropertyValue('widows');

  /** Sets the value of "widows" */
  set widows(String value) {
    setProperty('widows', value, '');
  }

  /** Gets the value of "width" */
  String get width => getPropertyValue('width');

  /** Sets the value of "width" */
  set width(String value) {
    setProperty('width', value, '');
  }

  /** Gets the value of "will-change" */
  String get willChange => getPropertyValue('will-change');

  /** Sets the value of "will-change" */
  set willChange(String value) {
    setProperty('will-change', value, '');
  }

  /** Gets the value of "word-break" */
  String get wordBreak => getPropertyValue('word-break');

  /** Sets the value of "word-break" */
  set wordBreak(String value) {
    setProperty('word-break', value, '');
  }

  /** Gets the value of "word-spacing" */
  String get wordSpacing => getPropertyValue('word-spacing');

  /** Sets the value of "word-spacing" */
  set wordSpacing(String value) {
    setProperty('word-spacing', value, '');
  }

  /** Gets the value of "word-wrap" */
  String get wordWrap => getPropertyValue('word-wrap');

  /** Sets the value of "word-wrap" */
  set wordWrap(String value) {
    setProperty('word-wrap', value, '');
  }

  /** Gets the value of "wrap-flow" */
  String get wrapFlow => getPropertyValue('wrap-flow');

  /** Sets the value of "wrap-flow" */
  set wrapFlow(String value) {
    setProperty('wrap-flow', value, '');
  }

  /** Gets the value of "wrap-through" */
  String get wrapThrough => getPropertyValue('wrap-through');

  /** Sets the value of "wrap-through" */
  set wrapThrough(String value) {
    setProperty('wrap-through', value, '');
  }

  /** Gets the value of "writing-mode" */
  String get writingMode => getPropertyValue('writing-mode');

  /** Sets the value of "writing-mode" */
  set writingMode(String value) {
    setProperty('writing-mode', value, '');
  }

  /** Gets the value of "z-index" */
  String get zIndex => getPropertyValue('z-index');

  /** Sets the value of "z-index" */
  set zIndex(String value) {
    setProperty('z-index', value, '');
  }

  /** Gets the value of "zoom" */
  String get zoom => getPropertyValue('zoom');

  /** Sets the value of "zoom" */
  set zoom(String value) {
    setProperty('zoom', value, '');
  }
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSStyleRule")
class CssStyleRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssStyleRule._() {
    throw new UnsupportedError("Not supported");
  }

  String get selectorText native;

  set selectorText(String value) native;

  CssStyleDeclaration get style native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSStyleSheet")
class CssStyleSheet extends StyleSheet {
  // To suppress missing implicit constructor warnings.
  factory CssStyleSheet._() {
    throw new UnsupportedError("Not supported");
  }

  @Returns('_CssRuleList')
  @Creates('_CssRuleList')
  List<CssRule> get cssRules native;

  CssRule? get ownerRule native;

  @Returns('_CssRuleList')
  @Creates('_CssRuleList')
  List<CssRule>? get rules native;

  int addRule(String? selector, String? style, [int? index]) native;

  void deleteRule(int index) native;

  int insertRule(String rule, [int? index]) native;

  void removeRule(int? index) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSStyleValue")
class CssStyleValue extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CssStyleValue._() {
    throw new UnsupportedError("Not supported");
  }

  static Object? parse(String property, String cssText) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSSupportsRule")
class CssSupportsRule extends CssConditionRule {
  // To suppress missing implicit constructor warnings.
  factory CssSupportsRule._() {
    throw new UnsupportedError("Not supported");
  }
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSTransformComponent")
class CssTransformComponent extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CssTransformComponent._() {
    throw new UnsupportedError("Not supported");
  }

  bool? get is2D native;

  set is2D(bool? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSTransformValue")
class CssTransformValue extends CssStyleValue {
  // To suppress missing implicit constructor warnings.
  factory CssTransformValue._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssTransformValue(
      [List<CssTransformComponent>? transformComponents]) {
    if (transformComponents == null) {
      return CssTransformValue._create_1();
    }
    if ((transformComponents is List<CssTransformComponent>)) {
      return CssTransformValue._create_2(transformComponents);
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }
  static CssTransformValue _create_1() =>
      JS('CssTransformValue', 'new CSSTransformValue()');
  static CssTransformValue _create_2(transformComponents) =>
      JS('CssTransformValue', 'new CSSTransformValue(#)', transformComponents);

  bool? get is2D native;

  int? get length native;

  CssTransformComponent componentAtIndex(int index) native;

  DomMatrix toMatrix() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSTranslation")
class CssTranslation extends CssTransformComponent {
  // To suppress missing implicit constructor warnings.
  factory CssTranslation._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssTranslation(CssNumericValue x, CssNumericValue y,
      [CssNumericValue? z]) {
    if ((y is CssNumericValue) && (x is CssNumericValue) && z == null) {
      return CssTranslation._create_1(x, y);
    }
    if ((z is CssNumericValue) &&
        (y is CssNumericValue) &&
        (x is CssNumericValue)) {
      return CssTranslation._create_2(x, y, z);
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }
  static CssTranslation _create_1(x, y) =>
      JS('CssTranslation', 'new CSSTranslation(#,#)', x, y);
  static CssTranslation _create_2(x, y, z) =>
      JS('CssTranslation', 'new CSSTranslation(#,#,#)', x, y, z);

  CssNumericValue? get x native;

  set x(CssNumericValue? value) native;

  CssNumericValue? get y native;

  set y(CssNumericValue? value) native;

  CssNumericValue? get z native;

  set z(CssNumericValue? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSUnitValue")
class CssUnitValue extends CssNumericValue {
  // To suppress missing implicit constructor warnings.
  factory CssUnitValue._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssUnitValue(num value, String unit) {
    return CssUnitValue._create_1(value, unit);
  }
  static CssUnitValue _create_1(value, unit) =>
      JS('CssUnitValue', 'new CSSUnitValue(#,#)', value, unit);

  String? get type native;

  String? get unit native;

  set unit(String? value) native;

  num? get value native;

  set value(num? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSUnparsedValue")
class CssUnparsedValue extends CssStyleValue {
  // To suppress missing implicit constructor warnings.
  factory CssUnparsedValue._() {
    throw new UnsupportedError("Not supported");
  }

  int? get length native;

  Object? fragmentAtIndex(int index) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSVariableReferenceValue")
class CssVariableReferenceValue extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CssVariableReferenceValue._() {
    throw new UnsupportedError("Not supported");
  }

  CssUnparsedValue? get fallback native;

  String? get variable native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSViewportRule")
class CssViewportRule extends CssRule {
  // To suppress missing implicit constructor warnings.
  factory CssViewportRule._() {
    throw new UnsupportedError("Not supported");
  }

  CssStyleDeclaration? get style native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CSSURLImageValue")
class CssurlImageValue extends CssImageValue {
  // To suppress missing implicit constructor warnings.
  factory CssurlImageValue._() {
    throw new UnsupportedError("Not supported");
  }

  factory CssurlImageValue(String url) {
    return CssurlImageValue._create_1(url);
  }
  static CssurlImageValue _create_1(url) =>
      JS('CssurlImageValue', 'new CSSURLImageValue(#)', url);

  String? get url native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

// https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/custom/index.html#dfn-custom-element-constructor-generation
@deprecated // experimental
typedef void CustomElementConstructor();
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("CustomElementRegistry")
class CustomElementRegistry extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory CustomElementRegistry._() {
    throw new UnsupportedError("Not supported");
  }

  void define(String name, Object constructor, [Map? options]) {
    if (options != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      _define_1(name, constructor, options_1);
      return;
    }
    _define_2(name, constructor);
    return;
  }

  @JSName('define')
  void _define_1(name, constructor, options) native;
  @JSName('define')
  void _define_2(name, constructor) native;

  Object? get(String name) native;

  Future whenDefined(String name) =>
      promiseToFuture(JS("", "#.whenDefined(#)", this, name));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

@Native("CustomEvent")
class CustomEvent extends Event {
  @Creates('Null') // Set from Dart code; does not instantiate a native type.
  var _dartDetail;

  factory CustomEvent(String type,
      {bool canBubble: true, bool cancelable: true, Object? detail}) {
    final CustomEvent e = document._createEvent('CustomEvent') as CustomEvent;

    e._dartDetail = detail;

    // Only try setting the detail if it's one of these types to avoid
    // first-chance exceptions. Can expand this list in the future as needed.
    if (detail is List || detail is Map || detail is String || detail is num) {
      try {
        detail = convertDartToNative_SerializedScriptValue(detail);
        e._initCustomEvent(type, canBubble, cancelable, detail);
      } catch (_) {
        e._initCustomEvent(type, canBubble, cancelable, null);
      }
    } else {
      e._initCustomEvent(type, canBubble, cancelable, null);
    }

    return e;
  }

  get detail {
    if (_dartDetail != null) {
      return _dartDetail;
    }
    return _detail;
  }

  factory CustomEvent._(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return CustomEvent._create_1(type, eventInitDict_1);
    }
    return CustomEvent._create_2(type);
  }
  static CustomEvent _create_1(type, eventInitDict) =>
      JS('CustomEvent', 'new CustomEvent(#,#)', type, eventInitDict);
  static CustomEvent _create_2(type) =>
      JS('CustomEvent', 'new CustomEvent(#)', type);

  dynamic get _detail =>
      convertNativeToDart_SerializedScriptValue(this._get__detail);
  @JSName('detail')
  @Creates('Null')
  dynamic get _get__detail native;

  @JSName('initCustomEvent')
  void _initCustomEvent(String type,
      [bool? bubbles, bool? cancelable, Object? detail]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLDListElement")
class DListElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory DListElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory DListElement() => JS<DListElement>(
      'returns:DListElement;creates:DListElement;new:true',
      '#.createElement(#)',
      document,
      "dl");
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  DListElement.created() : super.created();
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("HTMLDataElement")
class DataElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory DataElement._() {
    throw new UnsupportedError("Not supported");
  }
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  DataElement.created() : super.created();

  String? get value native;

  set value(String? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@SupportedBrowser(SupportedBrowser.CHROME)
@SupportedBrowser(SupportedBrowser.FIREFOX)
@SupportedBrowser(SupportedBrowser.IE, '10')
@SupportedBrowser(SupportedBrowser.SAFARI)
@Native("HTMLDataListElement")
class DataListElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory DataListElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory DataListElement() =>
      document.createElement("datalist") as DataListElement;
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  DataListElement.created() : super.created();

  /// Checks if this type is supported on the current platform.
  static bool get supported => Element.isTagSupported('datalist');

  @Returns('HtmlCollection')
  @Creates('HtmlCollection')
  List<Node>? get options native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DataTransfer")
class DataTransfer extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DataTransfer._() {
    throw new UnsupportedError("Not supported");
  }

  factory DataTransfer() {
    return DataTransfer._create_1();
  }
  static DataTransfer _create_1() => JS('DataTransfer', 'new DataTransfer()');

  String? get dropEffect native;

  set dropEffect(String? value) native;

  String? get effectAllowed native;

  set effectAllowed(String? value) native;

  @Returns('FileList')
  @Creates('FileList')
  List<File>? get files native;

  DataTransferItemList? get items native;

  List<String>? get types native;

  void clearData([String? format]) native;

  String getData(String format) native;

  void setData(String format, String data) native;

  void setDragImage(Element image, int x, int y) native;
}
// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DataTransferItem")
class DataTransferItem extends Interceptor {
  Entry getAsEntry() {
    Entry entry = _webkitGetAsEntry() as Entry;

    if (entry.isFile!)
      applyExtension('FileEntry', entry);
    else if (entry.isDirectory!)
      applyExtension('DirectoryEntry', entry);
    else
      applyExtension('Entry', entry);

    return entry;
  }

  // To suppress missing implicit constructor warnings.
  factory DataTransferItem._() {
    throw new UnsupportedError("Not supported");
  }

  String? get kind native;

  String? get type native;

  File? getAsFile() native;

  @JSName('webkitGetAsEntry')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  Entry? _webkitGetAsEntry() native;
}
// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DataTransferItemList")
class DataTransferItemList extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DataTransferItemList._() {
    throw new UnsupportedError("Not supported");
  }

  int? get length native;

  DataTransferItem? add(data_OR_file, [String? type]) native;

  @JSName('add')
  DataTransferItem? addData(String data, String type) native;

  @JSName('add')
  DataTransferItem? addFile(File file) native;

  void clear() native;

  DataTransferItem item(int index) native;

  void remove(int index) native;

  DataTransferItem operator [](int index) {
    return JS('DataTransferItem', '#[#]', this, index);
  }
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

typedef void DatabaseCallback(SqlDatabase database);
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

typedef void DecodeErrorCallback(DomException error);
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

typedef void DecodeSuccessCallback(AudioBuffer decodedData);
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DedicatedWorkerGlobalScope")
class DedicatedWorkerGlobalScope extends WorkerGlobalScope {
  // To suppress missing implicit constructor warnings.
  factory DedicatedWorkerGlobalScope._() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Static factory designed to expose `message` events to event
   * handlers that are not necessarily instances of [DedicatedWorkerGlobalScope].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MessageEvent> messageEvent =
      const EventStreamProvider<MessageEvent>('message');

  static const int PERSISTENT = 1;

  static const int TEMPORARY = 0;

  void close() native;

  void postMessage(/*any*/ message, [List<Object>? transfer]) {
    if (transfer != null) {
      var message_1 = convertDartToNative_SerializedScriptValue(message);
      _postMessage_1(message_1, transfer);
      return;
    }
    var message_1 = convertDartToNative_SerializedScriptValue(message);
    _postMessage_2(message_1);
    return;
  }

  @JSName('postMessage')
  void _postMessage_1(message, List<Object> transfer) native;
  @JSName('postMessage')
  void _postMessage_2(message) native;

  @JSName('webkitRequestFileSystem')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  void _webkitRequestFileSystem(int type, int size,
      [_FileSystemCallback? successCallback,
      _ErrorCallback? errorCallback]) native;

  @JSName('webkitRequestFileSystemSync')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  _DOMFileSystemSync requestFileSystemSync(int type, int size) native;

  @JSName('webkitResolveLocalFileSystemSyncURL')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  _EntrySync resolveLocalFileSystemSyncUrl(String url) native;

  @JSName('webkitResolveLocalFileSystemURL')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  void _webkitResolveLocalFileSystemUrl(
      String url, _EntryCallback successCallback,
      [_ErrorCallback? errorCallback]) native;

  /// Stream of `message` events handled by this [DedicatedWorkerGlobalScope].
  Stream<MessageEvent> get onMessage => messageEvent.forTarget(this);

  static DedicatedWorkerGlobalScope get instance {
    return _workerSelf as DedicatedWorkerGlobalScope;
  }
}

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DeprecatedStorageInfo")
class DeprecatedStorageInfo extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DeprecatedStorageInfo._() {
    throw new UnsupportedError("Not supported");
  }

  static const int PERSISTENT = 1;

  static const int TEMPORARY = 0;

  void queryUsageAndQuota(int storageType,
      [StorageUsageCallback? usageCallback,
      StorageErrorCallback? errorCallback]) native;

  void requestQuota(int storageType, int newQuotaInBytes,
      [StorageQuotaCallback? quotaCallback,
      StorageErrorCallback? errorCallback]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DeprecatedStorageQuota")
class DeprecatedStorageQuota extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DeprecatedStorageQuota._() {
    throw new UnsupportedError("Not supported");
  }

  void queryUsageAndQuota(StorageUsageCallback usageCallback,
      [StorageErrorCallback? errorCallback]) native;

  void requestQuota(int newQuotaInBytes,
      [StorageQuotaCallback? quotaCallback,
      StorageErrorCallback? errorCallback]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DeprecationReport")
class DeprecationReport extends ReportBody {
  // To suppress missing implicit constructor warnings.
  factory DeprecationReport._() {
    throw new UnsupportedError("Not supported");
  }

  int? get lineNumber native;

  String? get message native;

  String? get sourceFile native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@SupportedBrowser(SupportedBrowser.CHROME)
@SupportedBrowser(SupportedBrowser.SAFARI)
@Native("HTMLDetailsElement")
class DetailsElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory DetailsElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory DetailsElement() =>
      document.createElement("details") as DetailsElement;
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  DetailsElement.created() : super.created();

  /// Checks if this type is supported on the current platform.
  static bool get supported => Element.isTagSupported('details');

  bool? get open native;

  set open(bool? value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DetectedBarcode")
class DetectedBarcode extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DetectedBarcode._() {
    throw new UnsupportedError("Not supported");
  }

  factory DetectedBarcode() {
    return DetectedBarcode._create_1();
  }
  static DetectedBarcode _create_1() =>
      JS('DetectedBarcode', 'new DetectedBarcode()');

  Rectangle? get boundingBox native;

  List? get cornerPoints native;

  String? get rawValue native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DetectedFace")
class DetectedFace extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DetectedFace._() {
    throw new UnsupportedError("Not supported");
  }

  factory DetectedFace() {
    return DetectedFace._create_1();
  }
  static DetectedFace _create_1() => JS('DetectedFace', 'new DetectedFace()');

  Rectangle? get boundingBox native;

  List? get landmarks native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DetectedText")
class DetectedText extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DetectedText._() {
    throw new UnsupportedError("Not supported");
  }

  factory DetectedText() {
    return DetectedText._create_1();
  }
  static DetectedText _create_1() => JS('DetectedText', 'new DetectedText()');

  Rectangle? get boundingBox native;

  List? get cornerPoints native;

  String? get rawValue native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DeviceAcceleration")
class DeviceAcceleration extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DeviceAcceleration._() {
    throw new UnsupportedError("Not supported");
  }

  num? get x native;

  num? get y native;

  num? get z native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DeviceMotionEvent")
class DeviceMotionEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory DeviceMotionEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory DeviceMotionEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return DeviceMotionEvent._create_1(type, eventInitDict_1);
    }
    return DeviceMotionEvent._create_2(type);
  }
  static DeviceMotionEvent _create_1(type, eventInitDict) => JS(
      'DeviceMotionEvent', 'new DeviceMotionEvent(#,#)', type, eventInitDict);
  static DeviceMotionEvent _create_2(type) =>
      JS('DeviceMotionEvent', 'new DeviceMotionEvent(#)', type);

  DeviceAcceleration? get acceleration native;

  DeviceAcceleration? get accelerationIncludingGravity native;

  num? get interval native;

  DeviceRotationRate? get rotationRate native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DeviceOrientationEvent")
class DeviceOrientationEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory DeviceOrientationEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory DeviceOrientationEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return DeviceOrientationEvent._create_1(type, eventInitDict_1);
    }
    return DeviceOrientationEvent._create_2(type);
  }
  static DeviceOrientationEvent _create_1(type, eventInitDict) => JS(
      'DeviceOrientationEvent',
      'new DeviceOrientationEvent(#,#)',
      type,
      eventInitDict);
  static DeviceOrientationEvent _create_2(type) =>
      JS('DeviceOrientationEvent', 'new DeviceOrientationEvent(#)', type);

  bool? get absolute native;

  num? get alpha native;

  num? get beta native;

  num? get gamma native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DeviceRotationRate")
class DeviceRotationRate extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DeviceRotationRate._() {
    throw new UnsupportedError("Not supported");
  }

  num? get alpha native;

  num? get beta native;

  num? get gamma native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Unstable()
@Native("HTMLDialogElement")
class DialogElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory DialogElement._() {
    throw new UnsupportedError("Not supported");
  }
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  DialogElement.created() : super.created();

  bool? get open native;

  set open(bool? value) native;

  String? get returnValue native;

  set returnValue(String? value) native;

  void close([String? returnValue]) native;

  void show() native;

  void showModal() native;
}
// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DirectoryEntry")
class DirectoryEntry extends Entry {
  /**
   * Create a new directory with the specified `path`. If `exclusive` is true,
   * the returned Future will complete with an error if a directory already
   * exists with the specified `path`.
   */
  Future<Entry> createDirectory(String path, {bool exclusive: false}) {
    return _getDirectory(path,
        options: {'create': true, 'exclusive': exclusive});
  }

  DirectoryReader createReader() {
    DirectoryReader reader = _createReader();
    applyExtension('DirectoryReader', reader);
    return reader;
  }

  /**
   * Retrieve an already existing directory entry. The returned future will
   * result in an error if a directory at `path` does not exist or if the item
   * at `path` is not a directory.
   */
  Future<Entry> getDirectory(String path) {
    return _getDirectory(path);
  }

  /**
   * Create a new file with the specified `path`. If `exclusive` is true,
   * the returned Future will complete with an error if a file already
   * exists at the specified `path`.
   */
  Future<Entry> createFile(String path, {bool exclusive: false}) {
    return _getFile(path, options: {'create': true, 'exclusive': exclusive});
  }

  /**
   * Retrieve an already existing file entry. The returned future will
   * result in an error if a file at `path` does not exist or if the item at
   * `path` is not a file.
   */
  Future<Entry> getFile(String path) {
    return _getFile(path);
  }

  // To suppress missing implicit constructor warnings.
  factory DirectoryEntry._() {
    throw new UnsupportedError("Not supported");
  }

  @JSName('createReader')
  DirectoryReader _createReader() native;

  void __getDirectory(String? path,
      [Map? options,
      _EntryCallback? successCallback,
      _ErrorCallback? errorCallback]) {
    if (errorCallback != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      __getDirectory_1(path, options_1, successCallback, errorCallback);
      return;
    }
    if (successCallback != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      __getDirectory_2(path, options_1, successCallback);
      return;
    }
    if (options != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      __getDirectory_3(path, options_1);
      return;
    }
    __getDirectory_4(path);
    return;
  }

  @JSName('getDirectory')
  void __getDirectory_1(path, options, _EntryCallback? successCallback,
      _ErrorCallback? errorCallback) native;
  @JSName('getDirectory')
  void __getDirectory_2(path, options, _EntryCallback? successCallback) native;
  @JSName('getDirectory')
  void __getDirectory_3(path, options) native;
  @JSName('getDirectory')
  void __getDirectory_4(path) native;

  @JSName('getDirectory')
  Future<Entry> _getDirectory(String? path, {Map? options}) {
    var completer = new Completer<Entry>();
    __getDirectory(path, options, (value) {
      completer.complete(value);
    }, (error) {
      completer.completeError(error);
    });
    return completer.future;
  }

  void __getFile(String? path,
      [Map? options,
      _EntryCallback? successCallback,
      _ErrorCallback? errorCallback]) {
    if (errorCallback != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      __getFile_1(path, options_1, successCallback, errorCallback);
      return;
    }
    if (successCallback != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      __getFile_2(path, options_1, successCallback);
      return;
    }
    if (options != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      __getFile_3(path, options_1);
      return;
    }
    __getFile_4(path);
    return;
  }

  @JSName('getFile')
  void __getFile_1(path, options, _EntryCallback? successCallback,
      _ErrorCallback? errorCallback) native;
  @JSName('getFile')
  void __getFile_2(path, options, _EntryCallback? successCallback) native;
  @JSName('getFile')
  void __getFile_3(path, options) native;
  @JSName('getFile')
  void __getFile_4(path) native;

  @JSName('getFile')
  Future<Entry> _getFile(String? path, {Map? options}) {
    var completer = new Completer<Entry>();
    __getFile(path, options, (value) {
      applyExtension('FileEntry', value);
      completer.complete(value);
    }, (error) {
      completer.completeError(error);
    });
    return completer.future;
  }

  @JSName('removeRecursively')
  void _removeRecursively(VoidCallback successCallback,
      [_ErrorCallback? errorCallback]) native;

  @JSName('removeRecursively')
  Future removeRecursively() {
    var completer = new Completer();
    _removeRecursively(() {
      completer.complete();
    }, (error) {
      completer.completeError(error);
    });
    return completer.future;
  }
}
// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DirectoryReader")
class DirectoryReader extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DirectoryReader._() {
    throw new UnsupportedError("Not supported");
  }

  @JSName('readEntries')
  void _readEntries(_EntriesCallback successCallback,
      [_ErrorCallback? errorCallback]) native;

  Future<List<Entry>> readEntries() {
    var completer = new Completer<List<Entry>>();
    _readEntries((values) {
      values.forEach((value) {
        applyExtension('Entry', value);
        Entry entry = value as Entry;
        if (entry.isFile!)
          applyExtension('FileEntry', entry);
        else if (entry.isDirectory!) applyExtension('DirectoryEntry', entry);
      });
      completer.complete(new List<Entry>.from(values));
    }, (error) {
      completer.completeError(error);
    });

    return completer.future;
  }
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * A generic container for content on an HTML page;
 * corresponds to the &lt;div&gt; tag.
 *
 * The [DivElement] is a generic container and does not have any semantic
 * significance. It is functionally similar to [SpanElement].
 *
 * The [DivElement] is a block-level element, as opposed to [SpanElement],
 * which is an inline-level element.
 *
 * Example usage:
 *
 *     DivElement div = new DivElement();
 *     div.text = 'Here's my new DivElem
 *     document.body.elements.add(elem);
 *
 * See also:
 *
 * * [HTML `<div>` element](http://www.w3.org/TR/html-markup/div.html) from W3C.
 * * [Block-level element](http://www.w3.org/TR/CSS2/visuren.html#block-boxes) from W3C.
 * * [Inline-level element](http://www.w3.org/TR/CSS2/visuren.html#inline-boxes) from W3C.
 */
@Native("HTMLDivElement")
class DivElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory DivElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory DivElement() => JS<DivElement>(
      'returns:DivElement;creates:DivElement;new:true',
      '#.createElement(#)',
      document,
      "div");
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  DivElement.created() : super.created();
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * The base class for all documents.
 *
 * Each web page loaded in the browser has its own [Document] object, which is
 * typically an [HtmlDocument].
 *
 * If you aren't comfortable with DOM concepts, see the Dart tutorial
 * [Target 2: Connect Dart & HTML](http://www.dartlang.org/docs/tutorials/connect-dart-html/).
 */
@Native("Document")
class Document extends Node {
  // To suppress missing implicit constructor warnings.
  factory Document._() {
    throw new UnsupportedError("Not supported");
  }

  static const EventStreamProvider<Event> pointerLockChangeEvent =
      const EventStreamProvider<Event>('pointerlockchange');

  static const EventStreamProvider<Event> pointerLockErrorEvent =
      const EventStreamProvider<Event>('pointerlockerror');

  /**
   * Static factory designed to expose `readystatechange` events to event
   * handlers that are not necessarily instances of [Document].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> readyStateChangeEvent =
      const EventStreamProvider<Event>('readystatechange');

  /**
   * Static factory designed to expose `securitypolicyviolation` events to event
   * handlers that are not necessarily instances of [Document].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<SecurityPolicyViolationEvent>
      securityPolicyViolationEvent =
      const EventStreamProvider<SecurityPolicyViolationEvent>(
          'securitypolicyviolation');

  /**
   * Static factory designed to expose `selectionchange` events to event
   * handlers that are not necessarily instances of [Document].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> selectionChangeEvent =
      const EventStreamProvider<Event>('selectionchange');

  factory Document() {
    return Document._create_1();
  }
  static Document _create_1() => JS('Document', 'new Document()');

  String? get addressSpace native;

  @JSName('body')
  HtmlElement? get _body native;

  @JSName('body')
  set _body(HtmlElement? value) native;

  String? get contentType native;

  String? get cookie native;

  set cookie(String? value) native;

  ScriptElement? get currentScript native;

  WindowBase? get window => _convertNativeToDart_Window(this._get_window);
  @JSName('defaultView')
  @Creates('Window|=Object')
  @Returns('Window|=Object')
  @Creates('Window|=Object|Null')
  @Returns('Window|=Object|Null')
  dynamic get _get_window native;

  Element? get documentElement native;

  String? get domain native;

  bool? get fullscreenEnabled native;

  @JSName('head')
  HeadElement? get _head native;

  bool? get hidden native;

  DomImplementation? get implementation native;

  @JSName('lastModified')
  String? get _lastModified native;

  String? get origin native;

  @JSName('preferredStylesheetSet')
  String? get _preferredStylesheetSet native;

  String? get readyState native;

  @JSName('referrer')
  String get _referrer native;

  SvgSvgElement? get rootElement native;

  Element? get rootScroller native;

  set rootScroller(Element? value) native;

  Element? get scrollingElement native;

  @JSName('selectedStylesheetSet')
  String? get _selectedStylesheetSet native;

  @JSName('selectedStylesheetSet')
  set _selectedStylesheetSet(String? value) native;

  String? get suborigin native;

  DocumentTimeline? get timeline native;

  @JSName('title')
  String get _title native;

  @JSName('title')
  set _title(String value) native;

  @JSName('visibilityState')
  String? get _visibilityState native;

  @JSName('webkitFullscreenElement')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  Element? get _webkitFullscreenElement native;

  @JSName('webkitFullscreenEnabled')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  bool? get _webkitFullscreenEnabled native;

  @JSName('webkitHidden')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  bool? get _webkitHidden native;

  @JSName('webkitVisibilityState')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  String? get _webkitVisibilityState native;

  Node adoptNode(Node node) native;

  @JSName('caretRangeFromPoint')
  Range _caretRangeFromPoint(int? x, int? y) native;

  DocumentFragment createDocumentFragment() native;

  @JSName('createElement')
  Element _createElement(String localName_OR_tagName,
      [options_OR_typeExtension]) native;

  @JSName('createElementNS')
  Element _createElementNS(String? namespaceURI, String qualifiedName,
      [options_OR_typeExtension]) native;

  @JSName('createEvent')
  Event _createEvent(String eventType) native;

  Range createRange() native;

  @JSName('createTextNode')
  Text _createTextNode(String data) native;

  Touch _createTouch(Window view, EventTarget target, int identifier, num pageX,
      num pageY, num screenX, num screenY,
      [num? radiusX, num? radiusY, num? rotationAngle, num? force]) {
    if (force != null) {
      var target_1 = _convertDartToNative_EventTarget(target);
      return _createTouch_1(view, target_1, identifier, pageX, pageY, screenX,
          screenY, radiusX, radiusY, rotationAngle, force);
    }
    if (rotationAngle != null) {
      var target_1 = _convertDartToNative_EventTarget(target);
      return _createTouch_2(view, target_1, identifier, pageX, pageY, screenX,
          screenY, radiusX, radiusY, rotationAngle);
    }
    if (radiusY != null) {
      var target_1 = _convertDartToNative_EventTarget(target);
      return _createTouch_3(view, target_1, identifier, pageX, pageY, screenX,
          screenY, radiusX, radiusY);
    }
    if (radiusX != null) {
      var target_1 = _convertDartToNative_EventTarget(target);
      return _createTouch_4(
          view, target_1, identifier, pageX, pageY, screenX, screenY, radiusX);
    }
    var target_1 = _convertDartToNative_EventTarget(target);
    return _createTouch_5(
        view, target_1, identifier, pageX, pageY, screenX, screenY);
  }

  @JSName('createTouch')
  Touch _createTouch_1(Window view, target, identifier, pageX, pageY, screenX,
      screenY, radiusX, radiusY, rotationAngle, force) native;
  @JSName('createTouch')
  Touch _createTouch_2(Window view, target, identifier, pageX, pageY, screenX,
      screenY, radiusX, radiusY, rotationAngle) native;
  @JSName('createTouch')
  Touch _createTouch_3(Window view, target, identifier, pageX, pageY, screenX,
      screenY, radiusX, radiusY) native;
  @JSName('createTouch')
  Touch _createTouch_4(Window view, target, identifier, pageX, pageY, screenX,
      screenY, radiusX) native;
  @JSName('createTouch')
  Touch _createTouch_5(
      Window view, target, identifier, pageX, pageY, screenX, screenY) native;

  @JSName('createTouchList')
  TouchList _createTouchList(Touch touches) native;

  bool execCommand(String commandId, [bool? showUI, String? value]) native;

  void exitFullscreen() native;

  void exitPointerLock() native;

  List<Animation> getAnimations() native;

  @Creates('NodeList|HtmlCollection')
  @Returns('NodeList|HtmlCollection')
  List<Node> getElementsByClassName(String classNames) native;

  @Creates('NodeList|HtmlCollection')
  @Returns('NodeList|HtmlCollection')
  List<Node> getElementsByName(String elementName) native;

  @Creates('NodeList|HtmlCollection')
  @Returns('NodeList|HtmlCollection')
  List<Node> getElementsByTagName(String localName) native;

  Node importNode(Node node, [bool? deep]) native;

  bool queryCommandEnabled(String commandId) native;

  bool queryCommandIndeterm(String commandId) native;

  bool queryCommandState(String commandId) native;

  bool queryCommandSupported(String commandId) native;

  String queryCommandValue(String commandId) native;

  Function registerElement2(String type, [Map? options]) {
    if (options != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      return _registerElement2_1(type, options_1);
    }
    return _registerElement2_2(type);
  }

  @JSName('registerElement')
  Function _registerElement2_1(type, options) native;
  @JSName('registerElement')
  Function _registerElement2_2(type) native;

  @JSName('webkitExitFullscreen')
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  void _webkitExitFullscreen() native;

  // From NonElementParentNode

  Element? getElementById(String elementId) native;

  // From DocumentOrShadowRoot

  Element? get activeElement native;

  Element? get fullscreenElement native;

  Element? get pointerLockElement native;

  @JSName('styleSheets')
  @Returns('_StyleSheetList')
  @Creates('_StyleSheetList')
  List<StyleSheet>? get _styleSheets native;

  @JSName('elementFromPoint')
  Element? _elementFromPoint(int x, int y) native;

  List<Element> elementsFromPoint(int x, int y) native;

  // From FontFaceSource

  FontFaceSet? get fonts native;

  // From ParentNode

  @JSName('childElementCount')
  int get _childElementCount native;

  @JSName('children')
  @Returns('HtmlCollection')
  @Creates('HtmlCollection')
  List<Node>? get _children native;

  @JSName('firstElementChild')
  Element? get _firstElementChild native;

  @JSName('lastElementChild')
  Element? get _lastElementChild native;

  /**
   * Finds the first descendant element of this document that matches the
   * specified group of selectors.
   *
   * Unless your webpage contains multiple documents, the top-level
   * [querySelector]
   * method behaves the same as this method, so you should use it instead to
   * save typing a few characters.
   *
   * [selectors] should be a string using CSS selector syntax.
   *
   *     var element1 = document.querySelector('.className');
   *     var element2 = document.querySelector('#id');
   *
   * For details about CSS selector syntax, see the
   * [CSS selector specification](http://www.w3.org/TR/css3-selectors/).
   */
  Element? querySelector(String selectors) native;

  @JSName('querySelectorAll')
  @Creates('NodeList')
  @Returns('NodeList')
  List<Node> _querySelectorAll(String selectors) native;

  /// Stream of `abort` events handled by this [Document].
  Stream<Event> get onAbort => Element.abortEvent.forTarget(this);

  /// Stream of `beforecopy` events handled by this [Document].
  Stream<Event> get onBeforeCopy => Element.beforeCopyEvent.forTarget(this);

  /// Stream of `beforecut` events handled by this [Document].
  Stream<Event> get onBeforeCut => Element.beforeCutEvent.forTarget(this);

  /// Stream of `beforepaste` events handled by this [Document].
  Stream<Event> get onBeforePaste => Element.beforePasteEvent.forTarget(this);

  /// Stream of `blur` events handled by this [Document].
  Stream<Event> get onBlur => Element.blurEvent.forTarget(this);

  Stream<Event> get onCanPlay => Element.canPlayEvent.forTarget(this);

  Stream<Event> get onCanPlayThrough =>
      Element.canPlayThroughEvent.forTarget(this);

  /// Stream of `change` events handled by this [Document].
  Stream<Event> get onChange => Element.changeEvent.forTarget(this);

  /// Stream of `click` events handled by this [Document].
  Stream<MouseEvent> get onClick => Element.clickEvent.forTarget(this);

  /// Stream of `contextmenu` events handled by this [Document].
  Stream<MouseEvent> get onContextMenu =>
      Element.contextMenuEvent.forTarget(this);

  /// Stream of `copy` events handled by this [Document].
  Stream<ClipboardEvent> get onCopy => Element.copyEvent.forTarget(this);

  /// Stream of `cut` events handled by this [Document].
  Stream<ClipboardEvent> get onCut => Element.cutEvent.forTarget(this);

  /// Stream of `doubleclick` events handled by this [Document].
  @DomName('Document.ondblclick')
  Stream<Event> get onDoubleClick => Element.doubleClickEvent.forTarget(this);

  /// Stream of `drag` events handled by this [Document].
  Stream<MouseEvent> get onDrag => Element.dragEvent.forTarget(this);

  /// Stream of `dragend` events handled by this [Document].
  Stream<MouseEvent> get onDragEnd => Element.dragEndEvent.forTarget(this);

  /// Stream of `dragenter` events handled by this [Document].
  Stream<MouseEvent> get onDragEnter => Element.dragEnterEvent.forTarget(this);

  /// Stream of `dragleave` events handled by this [Document].
  Stream<MouseEvent> get onDragLeave => Element.dragLeaveEvent.forTarget(this);

  /// Stream of `dragover` events handled by this [Document].
  Stream<MouseEvent> get onDragOver => Element.dragOverEvent.forTarget(this);

  /// Stream of `dragstart` events handled by this [Document].
  Stream<MouseEvent> get onDragStart => Element.dragStartEvent.forTarget(this);

  /// Stream of `drop` events handled by this [Document].
  Stream<MouseEvent> get onDrop => Element.dropEvent.forTarget(this);

  Stream<Event> get onDurationChange =>
      Element.durationChangeEvent.forTarget(this);

  Stream<Event> get onEmptied => Element.emptiedEvent.forTarget(this);

  Stream<Event> get onEnded => Element.endedEvent.forTarget(this);

  /// Stream of `error` events handled by this [Document].
  Stream<Event> get onError => Element.errorEvent.forTarget(this);

  /// Stream of `focus` events handled by this [Document].
  Stream<Event> get onFocus => Element.focusEvent.forTarget(this);

  /// Stream of `input` events handled by this [Document].
  Stream<Event> get onInput => Element.inputEvent.forTarget(this);

  /// Stream of `invalid` events handled by this [Document].
  Stream<Event> get onInvalid => Element.invalidEvent.forTarget(this);

  /// Stream of `keydown` events handled by this [Document].
  Stream<KeyboardEvent> get onKeyDown => Element.keyDownEvent.forTarget(this);

  /// Stream of `keypress` events handled by this [Document].
  Stream<KeyboardEvent> get onKeyPress => Element.keyPressEvent.forTarget(this);

  /// Stream of `keyup` events handled by this [Document].
  Stream<KeyboardEvent> get onKeyUp => Element.keyUpEvent.forTarget(this);

  /// Stream of `load` events handled by this [Document].
  Stream<Event> get onLoad => Element.loadEvent.forTarget(this);

  Stream<Event> get onLoadedData => Element.loadedDataEvent.forTarget(this);

  Stream<Event> get onLoadedMetadata =>
      Element.loadedMetadataEvent.forTarget(this);

  /// Stream of `mousedown` events handled by this [Document].
  Stream<MouseEvent> get onMouseDown => Element.mouseDownEvent.forTarget(this);

  /// Stream of `mouseenter` events handled by this [Document].
  Stream<MouseEvent> get onMouseEnter =>
      Element.mouseEnterEvent.forTarget(this);

  /// Stream of `mouseleave` events handled by this [Document].
  Stream<MouseEvent> get onMouseLeave =>
      Element.mouseLeaveEvent.forTarget(this);

  /// Stream of `mousemove` events handled by this [Document].
  Stream<MouseEvent> get onMouseMove => Element.mouseMoveEvent.forTarget(this);

  /// Stream of `mouseout` events handled by this [Document].
  Stream<MouseEvent> get onMouseOut => Element.mouseOutEvent.forTarget(this);

  /// Stream of `mouseover` events handled by this [Document].
  Stream<MouseEvent> get onMouseOver => Element.mouseOverEvent.forTarget(this);

  /// Stream of `mouseup` events handled by this [Document].
  Stream<MouseEvent> get onMouseUp => Element.mouseUpEvent.forTarget(this);

  /// Stream of `mousewheel` events handled by this [Document].
  Stream<WheelEvent> get onMouseWheel =>
      Element.mouseWheelEvent.forTarget(this);

  /// Stream of `paste` events handled by this [Document].
  Stream<ClipboardEvent> get onPaste => Element.pasteEvent.forTarget(this);

  Stream<Event> get onPause => Element.pauseEvent.forTarget(this);

  Stream<Event> get onPlay => Element.playEvent.forTarget(this);

  Stream<Event> get onPlaying => Element.playingEvent.forTarget(this);

  Stream<Event> get onPointerLockChange =>
      pointerLockChangeEvent.forTarget(this);

  Stream<Event> get onPointerLockError => pointerLockErrorEvent.forTarget(this);

  Stream<Event> get onRateChange => Element.rateChangeEvent.forTarget(this);

  /// Stream of `readystatechange` events handled by this [Document].
  Stream<Event> get onReadyStateChange => readyStateChangeEvent.forTarget(this);

  /// Stream of `reset` events handled by this [Document].
  Stream<Event> get onReset => Element.resetEvent.forTarget(this);

  Stream<Event> get onResize => Element.resizeEvent.forTarget(this);

  /// Stream of `scroll` events handled by this [Document].
  Stream<Event> get onScroll => Element.scrollEvent.forTarget(this);

  /// Stream of `search` events handled by this [Document].
  Stream<Event> get onSearch => Element.searchEvent.forTarget(this);

  /// Stream of `securitypolicyviolation` events handled by this [Document].
  Stream<SecurityPolicyViolationEvent> get onSecurityPolicyViolation =>
      securityPolicyViolationEvent.forTarget(this);

  Stream<Event> get onSeeked => Element.seekedEvent.forTarget(this);

  Stream<Event> get onSeeking => Element.seekingEvent.forTarget(this);

  /// Stream of `select` events handled by this [Document].
  Stream<Event> get onSelect => Element.selectEvent.forTarget(this);

  /// Stream of `selectionchange` events handled by this [Document].
  Stream<Event> get onSelectionChange => selectionChangeEvent.forTarget(this);

  /// Stream of `selectstart` events handled by this [Document].
  Stream<Event> get onSelectStart => Element.selectStartEvent.forTarget(this);

  Stream<Event> get onStalled => Element.stalledEvent.forTarget(this);

  /// Stream of `submit` events handled by this [Document].
  Stream<Event> get onSubmit => Element.submitEvent.forTarget(this);

  Stream<Event> get onSuspend => Element.suspendEvent.forTarget(this);

  Stream<Event> get onTimeUpdate => Element.timeUpdateEvent.forTarget(this);

  /// Stream of `touchcancel` events handled by this [Document].
  Stream<TouchEvent> get onTouchCancel =>
      Element.touchCancelEvent.forTarget(this);

  /// Stream of `touchend` events handled by this [Document].
  Stream<TouchEvent> get onTouchEnd => Element.touchEndEvent.forTarget(this);

  /// Stream of `touchmove` events handled by this [Document].
  Stream<TouchEvent> get onTouchMove => Element.touchMoveEvent.forTarget(this);

  /// Stream of `touchstart` events handled by this [Document].
  Stream<TouchEvent> get onTouchStart =>
      Element.touchStartEvent.forTarget(this);

  Stream<Event> get onVolumeChange => Element.volumeChangeEvent.forTarget(this);

  Stream<Event> get onWaiting => Element.waitingEvent.forTarget(this);

  /// Stream of `fullscreenchange` events handled by this [Document].
  Stream<Event> get onFullscreenChange =>
      Element.fullscreenChangeEvent.forTarget(this);

  /// Stream of `fullscreenerror` events handled by this [Document].
  Stream<Event> get onFullscreenError =>
      Element.fullscreenErrorEvent.forTarget(this);

  /**
   * Finds all descendant elements of this document that match the specified
   * group of selectors.
   *
   * Unless your webpage contains multiple documents, the top-level
   * [querySelectorAll]
   * method behaves the same as this method, so you should use it instead to
   * save typing a few characters.
   *
   * [selectors] should be a string using CSS selector syntax.
   *
   *     var items = document.querySelectorAll('.itemClassName');
   *
   * For details about CSS selector syntax, see the
   * [CSS selector specification](http://www.w3.org/TR/css3-selectors/).
   */
  ElementList<T> querySelectorAll<T extends Element>(String selectors) =>
      new _FrozenElementList<T>._wrap(_querySelectorAll(selectors));

  /// Checks if [registerElement] is supported on the current platform.
  bool get supportsRegisterElement {
    return JS('bool', '("registerElement" in #)', this);
  }

  /// *Deprecated*: use [supportsRegisterElement] instead.
  @deprecated
  bool get supportsRegister => supportsRegisterElement;

  void registerElement(String tag, Type customElementClass,
      {String? extendsTag}) {
    registerElement2(
        tag, {'prototype': customElementClass, 'extends': extendsTag});
  }

  @pragma('dart2js:tryInline') // Almost all call sites have one argument.
  Element createElement(String tagName, [String? typeExtension]) {
    return (typeExtension == null)
        ? _createElement_2(tagName)
        : _createElement(tagName, typeExtension);
  }

  // The two-argument version of this is automatically generated, but we need to
  // omit the typeExtension if it's null on Firefox or we get an is="null" attribute.
  _createElement_2(String tagName) =>
      JS('Element', '#.createElement(#)', this, tagName);

  // The three-argument version of this is automatically generated, but we need to
  // omit the typeExtension if it's null on Firefox or we get an is="null" attribute.
  _createElementNS_2(String namespaceURI, String qualifiedName) => JS(
      'Element', '#.createElementNS(#, #)', this, namespaceURI, qualifiedName);

  Element createElementNS(String namespaceURI, String qualifiedName,
      [String? typeExtension]) {
    return (typeExtension == null)
        ? _createElementNS_2(namespaceURI, qualifiedName)
        : _createElementNS(namespaceURI, qualifiedName, typeExtension);
  }

  NodeIterator _createNodeIterator(Node root,
          [int? whatToShow, NodeFilter? filter]) =>
      JS('NodeIterator', '#.createNodeIterator(#, #, #, false)', this, root,
          whatToShow, filter);

  TreeWalker _createTreeWalker(Node root,
          [int? whatToShow, NodeFilter? filter]) =>
      JS('TreeWalker', '#.createTreeWalker(#, #, #, false)', this, root,
          whatToShow, filter);

  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.FIREFOX)
  @SupportedBrowser(SupportedBrowser.IE, '10')
  String get visibilityState => JS(
      'String',
      '(#.visibilityState || #.mozVisibilityState || #.msVisibilityState ||'
          '#.webkitVisibilityState)',
      this,
      this,
      this,
      this);
}
// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DocumentFragment")
class DocumentFragment extends Node
    implements NonElementParentNode, ParentNode {
  factory DocumentFragment() => document.createDocumentFragment();

  factory DocumentFragment.html(String? html,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    return document.body!.createFragment(html,
        validator: validator, treeSanitizer: treeSanitizer);
  }

  factory DocumentFragment.svg(String? svgContent,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    return new svg.SvgSvgElement().createFragment(svgContent,
        validator: validator, treeSanitizer: treeSanitizer);
  }

  HtmlCollection get _children =>
      throw new UnimplementedError('Use _docChildren instead');

  // Native field is used only by Dart code so does not lead to instantiation
  // of native classes
  @Creates('Null')
  List<Element>? _docChildren;

  List<Element> get children {
    if (_docChildren == null) {
      _docChildren = new FilteredElementList(this);
    }
    return _docChildren!;
  }

  set children(List<Element> value) {
    // Copy list first since we don't want liveness during iteration.
    var copy = value.toList();
    var children = this.children;
    children.clear();
    children.addAll(copy);
  }

  /**
   * Finds all descendant elements of this document fragment that match the
   * specified group of selectors.
   *
   * [selectors] should be a string using CSS selector syntax.
   *
   *     var items = document.querySelectorAll('.itemClassName');
   *
   * For details about CSS selector syntax, see the
   * [CSS selector specification](http://www.w3.org/TR/css3-selectors/).
   */
  ElementList<T> querySelectorAll<T extends Element>(String selectors) =>
      new _FrozenElementList<T>._wrap(_querySelectorAll(selectors));

  // innerHtml is marked as nullable, even though it is guaranteed to return a
  // non-nullable, because ShadowRoot.innerHtml overrides it and can be
  // incompatible.
  String? get innerHtml {
    final e = new DivElement();
    e.append(this.clone(true));
    return e.innerHtml;
  }

  set innerHtml(String? value) {
    this.setInnerHtml(value);
  }

  void setInnerHtml(String? html,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    this.nodes.clear();
    append(document.body!.createFragment(html,
        validator: validator, treeSanitizer: treeSanitizer));
  }

  /**
   * Adds the specified text as a text node after the last child of this
   * document fragment.
   */
  void appendText(String text) {
    this.append(new Text(text));
  }

  /**
   * Parses the specified text as HTML and adds the resulting node after the
   * last child of this document fragment.
   */
  void appendHtml(String text,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    this.append(new DocumentFragment.html(text,
        validator: validator, treeSanitizer: treeSanitizer));
  }

  // To suppress missing implicit constructor warnings.
  factory DocumentFragment._() {
    throw new UnsupportedError("Not supported");
  }

  // From NonElementParentNode

  Element? getElementById(String elementId) native;

  // From ParentNode

  @JSName('childElementCount')
  int get _childElementCount native;

  @JSName('firstElementChild')
  Element? get _firstElementChild native;

  @JSName('lastElementChild')
  Element? get _lastElementChild native;

  /**
   * Finds the first descendant element of this document fragment that matches
   * the specified group of selectors.
   *
   * [selectors] should be a string using CSS selector syntax.
   *
   *     var element1 = fragment.querySelector('.className');
   *     var element2 = fragment.querySelector('#id');
   *
   * For details about CSS selector syntax, see the
   * [CSS selector specification](http://www.w3.org/TR/css3-selectors/).
   */
  Element? querySelector(String selectors) native;

  @JSName('querySelectorAll')
  @Creates('NodeList')
  @Returns('NodeList')
  List<Node> _querySelectorAll(String selectors) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DocumentOrShadowRoot")
class DocumentOrShadowRoot extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DocumentOrShadowRoot._() {
    throw new UnsupportedError("Not supported");
  }

  Element? get activeElement native;

  Element? get fullscreenElement native;

  Element? get pointerLockElement native;

  @Returns('_StyleSheetList')
  @Creates('_StyleSheetList')
  List<StyleSheet>? get styleSheets native;

  Element? elementFromPoint(int x, int y) native;

  List<Element> elementsFromPoint(int x, int y) native;

  Selection? getSelection() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DocumentTimeline")
class DocumentTimeline extends AnimationTimeline {
  // To suppress missing implicit constructor warnings.
  factory DocumentTimeline._() {
    throw new UnsupportedError("Not supported");
  }

  factory DocumentTimeline([Map? options]) {
    if (options != null) {
      var options_1 = convertDartToNative_Dictionary(options);
      return DocumentTimeline._create_1(options_1);
    }
    return DocumentTimeline._create_2();
  }
  static DocumentTimeline _create_1(options) =>
      JS('DocumentTimeline', 'new DocumentTimeline(#)', options);
  static DocumentTimeline _create_2() =>
      JS('DocumentTimeline', 'new DocumentTimeline()');
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMError")
class DomError extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomError._() {
    throw new UnsupportedError("Not supported");
  }

  factory DomError(String name, [String? message]) {
    if (message != null) {
      return DomError._create_1(name, message);
    }
    return DomError._create_2(name);
  }
  static DomError _create_1(name, message) =>
      JS('DomError', 'new DOMError(#,#)', name, message);
  static DomError _create_2(name) => JS('DomError', 'new DOMError(#)', name);

  String? get message native;

  String? get name native;
}
// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Unstable()
@Native("DOMException")
class DomException extends Interceptor {
  static const String INDEX_SIZE = 'IndexSizeError';
  static const String HIERARCHY_REQUEST = 'HierarchyRequestError';
  static const String WRONG_DOCUMENT = 'WrongDocumentError';
  static const String INVALID_CHARACTER = 'InvalidCharacterError';
  static const String NO_MODIFICATION_ALLOWED = 'NoModificationAllowedError';
  static const String NOT_FOUND = 'NotFoundError';
  static const String NOT_SUPPORTED = 'NotSupportedError';
  static const String INVALID_STATE = 'InvalidStateError';
  static const String SYNTAX = 'SyntaxError';
  static const String INVALID_MODIFICATION = 'InvalidModificationError';
  static const String NAMESPACE = 'NamespaceError';
  static const String INVALID_ACCESS = 'InvalidAccessError';
  static const String TYPE_MISMATCH = 'TypeMismatchError';
  static const String SECURITY = 'SecurityError';
  static const String NETWORK = 'NetworkError';
  static const String ABORT = 'AbortError';
  static const String URL_MISMATCH = 'URLMismatchError';
  static const String QUOTA_EXCEEDED = 'QuotaExceededError';
  static const String TIMEOUT = 'TimeoutError';
  static const String INVALID_NODE_TYPE = 'InvalidNodeTypeError';
  static const String DATA_CLONE = 'DataCloneError';
  static const String ENCODING = 'EncodingError';
  static const String NOT_READABLE = 'NotReadableError';
  static const String UNKNOWN = 'UnknownError';
  static const String CONSTRAINT = 'ConstraintError';
  static const String TRANSACTION_INACTIVE = 'TransactionInactiveError';
  static const String READ_ONLY = 'ReadOnlyError';
  static const String VERSION = 'VersionError';
  static const String OPERATION = 'OperationError';
  static const String NOT_ALLOWED = 'NotAllowedError';
  // Is TypeError class derived from DomException but name is 'TypeError'
  static const String TYPE_ERROR = 'TypeError';

  String get name {
    var errorName = JS('String', '#.name', this);
    // Although Safari nightly has updated the name to SecurityError, Safari 5
    // and 6 still return SECURITY_ERR.
    if (Device.isWebKit && errorName == 'SECURITY_ERR') return 'SecurityError';
    // Chrome release still uses old string, remove this line when Chrome stable
    // also prints out SyntaxError.
    if (Device.isWebKit && errorName == 'SYNTAX_ERR') return 'SyntaxError';
    return errorName as String;
  }

  // To suppress missing implicit constructor warnings.
  factory DomException._() {
    throw new UnsupportedError("Not supported");
  }

  String? get message native;

  String toString() => JS('String', 'String(#)', this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMImplementation")
class DomImplementation extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomImplementation._() {
    throw new UnsupportedError("Not supported");
  }

  XmlDocument createDocument(String? namespaceURI, String qualifiedName,
      _DocumentType? doctype) native;

  _DocumentType createDocumentType(
      String qualifiedName, String publicId, String systemId) native;

  @JSName('createHTMLDocument')
  HtmlDocument createHtmlDocument([String? title]) native;

  bool hasFeature() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Iterator")
class DomIterator extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomIterator._() {
    throw new UnsupportedError("Not supported");
  }

  Object? next([Object? value]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMMatrix")
class DomMatrix extends DomMatrixReadOnly {
  // To suppress missing implicit constructor warnings.
  factory DomMatrix._() {
    throw new UnsupportedError("Not supported");
  }

  factory DomMatrix([Object? init]) {
    if (init != null) {
      return DomMatrix._create_1(init);
    }
    return DomMatrix._create_2();
  }
  static DomMatrix _create_1(init) => JS('DomMatrix', 'new DOMMatrix(#)', init);
  static DomMatrix _create_2() => JS('DomMatrix', 'new DOMMatrix()');

  // Shadowing definition.

  num? get a native;

  set a(num? value) native;

  // Shadowing definition.

  num? get b native;

  set b(num? value) native;

  // Shadowing definition.

  num? get c native;

  set c(num? value) native;

  // Shadowing definition.

  num? get d native;

  set d(num? value) native;

  // Shadowing definition.

  num? get e native;

  set e(num? value) native;

  // Shadowing definition.

  num? get f native;

  set f(num? value) native;

  // Shadowing definition.

  num? get m11 native;

  set m11(num? value) native;

  // Shadowing definition.

  num? get m12 native;

  set m12(num? value) native;

  // Shadowing definition.

  num? get m13 native;

  set m13(num? value) native;

  // Shadowing definition.

  num? get m14 native;

  set m14(num? value) native;

  // Shadowing definition.

  num? get m21 native;

  set m21(num? value) native;

  // Shadowing definition.

  num? get m22 native;

  set m22(num? value) native;

  // Shadowing definition.

  num? get m23 native;

  set m23(num? value) native;

  // Shadowing definition.

  num? get m24 native;

  set m24(num? value) native;

  // Shadowing definition.

  num? get m31 native;

  set m31(num? value) native;

  // Shadowing definition.

  num? get m32 native;

  set m32(num? value) native;

  // Shadowing definition.

  num? get m33 native;

  set m33(num? value) native;

  // Shadowing definition.

  num? get m34 native;

  set m34(num? value) native;

  // Shadowing definition.

  num? get m41 native;

  set m41(num? value) native;

  // Shadowing definition.

  num? get m42 native;

  set m42(num? value) native;

  // Shadowing definition.

  num? get m43 native;

  set m43(num? value) native;

  // Shadowing definition.

  num? get m44 native;

  set m44(num? value) native;

  static DomMatrix fromFloat32Array(Float32List array32) native;

  static DomMatrix fromFloat64Array(Float64List array64) native;

  static DomMatrix fromMatrix([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _fromMatrix_1(other_1);
    }
    return _fromMatrix_2();
  }

  @JSName('fromMatrix')
  static DomMatrix _fromMatrix_1(other) native;
  @JSName('fromMatrix')
  static DomMatrix _fromMatrix_2() native;

  DomMatrix invertSelf() native;

  DomMatrix multiplySelf([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _multiplySelf_1(other_1);
    }
    return _multiplySelf_2();
  }

  @JSName('multiplySelf')
  DomMatrix _multiplySelf_1(other) native;
  @JSName('multiplySelf')
  DomMatrix _multiplySelf_2() native;

  DomMatrix preMultiplySelf([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _preMultiplySelf_1(other_1);
    }
    return _preMultiplySelf_2();
  }

  @JSName('preMultiplySelf')
  DomMatrix _preMultiplySelf_1(other) native;
  @JSName('preMultiplySelf')
  DomMatrix _preMultiplySelf_2() native;

  DomMatrix rotateAxisAngleSelf([num? x, num? y, num? z, num? angle]) native;

  DomMatrix rotateFromVectorSelf([num? x, num? y]) native;

  DomMatrix rotateSelf([num? rotX, num? rotY, num? rotZ]) native;

  DomMatrix scale3dSelf([num? scale, num? originX, num? originY, num? originZ])
      native;

  DomMatrix scaleSelf(
      [num? scaleX,
      num? scaleY,
      num? scaleZ,
      num? originX,
      num? originY,
      num? originZ]) native;

  DomMatrix setMatrixValue(String transformList) native;

  DomMatrix skewXSelf([num? sx]) native;

  DomMatrix skewYSelf([num? sy]) native;

  DomMatrix translateSelf([num? tx, num? ty, num? tz]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMMatrixReadOnly")
class DomMatrixReadOnly extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomMatrixReadOnly._() {
    throw new UnsupportedError("Not supported");
  }

  factory DomMatrixReadOnly([Object? init]) {
    if (init != null) {
      return DomMatrixReadOnly._create_1(init);
    }
    return DomMatrixReadOnly._create_2();
  }
  static DomMatrixReadOnly _create_1(init) =>
      JS('DomMatrixReadOnly', 'new DOMMatrixReadOnly(#)', init);
  static DomMatrixReadOnly _create_2() =>
      JS('DomMatrixReadOnly', 'new DOMMatrixReadOnly()');

  num? get a native;

  num? get b native;

  num? get c native;

  num? get d native;

  num? get e native;

  num? get f native;

  bool? get is2D native;

  bool? get isIdentity native;

  num? get m11 native;

  num? get m12 native;

  num? get m13 native;

  num? get m14 native;

  num? get m21 native;

  num? get m22 native;

  num? get m23 native;

  num? get m24 native;

  num? get m31 native;

  num? get m32 native;

  num? get m33 native;

  num? get m34 native;

  num? get m41 native;

  num? get m42 native;

  num? get m43 native;

  num? get m44 native;

  DomMatrix flipX() native;

  DomMatrix flipY() native;

  static DomMatrixReadOnly fromFloat32Array(Float32List array32) native;

  static DomMatrixReadOnly fromFloat64Array(Float64List array64) native;

  static DomMatrixReadOnly fromMatrix([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _fromMatrix_1(other_1);
    }
    return _fromMatrix_2();
  }

  @JSName('fromMatrix')
  static DomMatrixReadOnly _fromMatrix_1(other) native;
  @JSName('fromMatrix')
  static DomMatrixReadOnly _fromMatrix_2() native;

  DomMatrix inverse() native;

  DomMatrix multiply([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _multiply_1(other_1);
    }
    return _multiply_2();
  }

  @JSName('multiply')
  DomMatrix _multiply_1(other) native;
  @JSName('multiply')
  DomMatrix _multiply_2() native;

  DomMatrix rotate([num? rotX, num? rotY, num? rotZ]) native;

  DomMatrix rotateAxisAngle([num? x, num? y, num? z, num? angle]) native;

  DomMatrix rotateFromVector([num? x, num? y]) native;

  DomMatrix scale(
      [num? scaleX,
      num? scaleY,
      num? scaleZ,
      num? originX,
      num? originY,
      num? originZ]) native;

  DomMatrix scale3d([num? scale, num? originX, num? originY, num? originZ])
      native;

  DomMatrix skewX([num? sx]) native;

  DomMatrix skewY([num? sy]) native;

  Float32List toFloat32Array() native;

  Float64List toFloat64Array() native;

  DomPoint transformPoint([Map? point]) {
    if (point != null) {
      var point_1 = convertDartToNative_Dictionary(point);
      return _transformPoint_1(point_1);
    }
    return _transformPoint_2();
  }

  @JSName('transformPoint')
  DomPoint _transformPoint_1(point) native;
  @JSName('transformPoint')
  DomPoint _transformPoint_2() native;

  DomMatrix translate([num? tx, num? ty, num? tz]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMParser")
class DomParser extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomParser._() {
    throw new UnsupportedError("Not supported");
  }

  factory DomParser() {
    return DomParser._create_1();
  }
  static DomParser _create_1() => JS('DomParser', 'new DOMParser()');

  Document parseFromString(String str, String type) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMPoint")
class DomPoint extends DomPointReadOnly {
  // To suppress missing implicit constructor warnings.
  factory DomPoint._() {
    throw new UnsupportedError("Not supported");
  }

  factory DomPoint([num? x, num? y, num? z, num? w]) {
    if (w != null) {
      return DomPoint._create_1(x, y, z, w);
    }
    if (z != null) {
      return DomPoint._create_2(x, y, z);
    }
    if (y != null) {
      return DomPoint._create_3(x, y);
    }
    if (x != null) {
      return DomPoint._create_4(x);
    }
    return DomPoint._create_5();
  }
  static DomPoint _create_1(x, y, z, w) =>
      JS('DomPoint', 'new DOMPoint(#,#,#,#)', x, y, z, w);
  static DomPoint _create_2(x, y, z) =>
      JS('DomPoint', 'new DOMPoint(#,#,#)', x, y, z);
  static DomPoint _create_3(x, y) => JS('DomPoint', 'new DOMPoint(#,#)', x, y);
  static DomPoint _create_4(x) => JS('DomPoint', 'new DOMPoint(#)', x);
  static DomPoint _create_5() => JS('DomPoint', 'new DOMPoint()');

  /// Checks if this type is supported on the current platform.
  static bool get supported =>
      JS('bool', '!!(window.DOMPoint) || !!(window.WebKitPoint)');

  // Shadowing definition.

  num? get w native;

  set w(num? value) native;

  // Shadowing definition.

  num? get x native;

  set x(num? value) native;

  // Shadowing definition.

  num? get y native;

  set y(num? value) native;

  // Shadowing definition.

  num? get z native;

  set z(num? value) native;

  static DomPoint fromPoint([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _fromPoint_1(other_1);
    }
    return _fromPoint_2();
  }

  @JSName('fromPoint')
  static DomPoint _fromPoint_1(other) native;
  @JSName('fromPoint')
  static DomPoint _fromPoint_2() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMPointReadOnly")
class DomPointReadOnly extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomPointReadOnly._() {
    throw new UnsupportedError("Not supported");
  }

  factory DomPointReadOnly([num? x, num? y, num? z, num? w]) {
    if (w != null) {
      return DomPointReadOnly._create_1(x, y, z, w);
    }
    if (z != null) {
      return DomPointReadOnly._create_2(x, y, z);
    }
    if (y != null) {
      return DomPointReadOnly._create_3(x, y);
    }
    if (x != null) {
      return DomPointReadOnly._create_4(x);
    }
    return DomPointReadOnly._create_5();
  }
  static DomPointReadOnly _create_1(x, y, z, w) =>
      JS('DomPointReadOnly', 'new DOMPointReadOnly(#,#,#,#)', x, y, z, w);
  static DomPointReadOnly _create_2(x, y, z) =>
      JS('DomPointReadOnly', 'new DOMPointReadOnly(#,#,#)', x, y, z);
  static DomPointReadOnly _create_3(x, y) =>
      JS('DomPointReadOnly', 'new DOMPointReadOnly(#,#)', x, y);
  static DomPointReadOnly _create_4(x) =>
      JS('DomPointReadOnly', 'new DOMPointReadOnly(#)', x);
  static DomPointReadOnly _create_5() =>
      JS('DomPointReadOnly', 'new DOMPointReadOnly()');

  num? get w native;

  num? get x native;

  num? get y native;

  num? get z native;

  static DomPointReadOnly fromPoint([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _fromPoint_1(other_1);
    }
    return _fromPoint_2();
  }

  @JSName('fromPoint')
  static DomPointReadOnly _fromPoint_1(other) native;
  @JSName('fromPoint')
  static DomPointReadOnly _fromPoint_2() native;

  DomPoint matrixTransform([Map? matrix]) {
    if (matrix != null) {
      var matrix_1 = convertDartToNative_Dictionary(matrix);
      return _matrixTransform_1(matrix_1);
    }
    return _matrixTransform_2();
  }

  @JSName('matrixTransform')
  DomPoint _matrixTransform_1(matrix) native;
  @JSName('matrixTransform')
  DomPoint _matrixTransform_2() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMQuad")
class DomQuad extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomQuad._() {
    throw new UnsupportedError("Not supported");
  }

  factory DomQuad([Map? p1, Map? p2, Map? p3, Map? p4]) {
    if (p4 != null) {
      var p1_1 = convertDartToNative_Dictionary(p1);
      var p2_2 = convertDartToNative_Dictionary(p2);
      var p3_3 = convertDartToNative_Dictionary(p3);
      var p4_4 = convertDartToNative_Dictionary(p4);
      return DomQuad._create_1(p1_1, p2_2, p3_3, p4_4);
    }
    if (p3 != null) {
      var p1_1 = convertDartToNative_Dictionary(p1);
      var p2_2 = convertDartToNative_Dictionary(p2);
      var p3_3 = convertDartToNative_Dictionary(p3);
      return DomQuad._create_2(p1_1, p2_2, p3_3);
    }
    if (p2 != null) {
      var p1_1 = convertDartToNative_Dictionary(p1);
      var p2_2 = convertDartToNative_Dictionary(p2);
      return DomQuad._create_3(p1_1, p2_2);
    }
    if (p1 != null) {
      var p1_1 = convertDartToNative_Dictionary(p1);
      return DomQuad._create_4(p1_1);
    }
    return DomQuad._create_5();
  }
  static DomQuad _create_1(p1, p2, p3, p4) =>
      JS('DomQuad', 'new DOMQuad(#,#,#,#)', p1, p2, p3, p4);
  static DomQuad _create_2(p1, p2, p3) =>
      JS('DomQuad', 'new DOMQuad(#,#,#)', p1, p2, p3);
  static DomQuad _create_3(p1, p2) => JS('DomQuad', 'new DOMQuad(#,#)', p1, p2);
  static DomQuad _create_4(p1) => JS('DomQuad', 'new DOMQuad(#)', p1);
  static DomQuad _create_5() => JS('DomQuad', 'new DOMQuad()');

  DomPoint? get p1 native;

  DomPoint? get p2 native;

  DomPoint? get p3 native;

  DomPoint? get p4 native;

  static DomQuad fromQuad([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _fromQuad_1(other_1);
    }
    return _fromQuad_2();
  }

  @JSName('fromQuad')
  static DomQuad _fromQuad_1(other) native;
  @JSName('fromQuad')
  static DomQuad _fromQuad_2() native;

  static DomQuad fromRect([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _fromRect_1(other_1);
    }
    return _fromRect_2();
  }

  @JSName('fromRect')
  static DomQuad _fromRect_1(other) native;
  @JSName('fromRect')
  static DomQuad _fromRect_2() native;

  Rectangle getBounds() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("ClientRectList,DOMRectList")
class DomRectList extends Interceptor
    with ListMixin<Rectangle>, ImmutableListMixin<Rectangle>
    implements List<Rectangle>, JavaScriptIndexingBehavior<Rectangle> {
  // To suppress missing implicit constructor warnings.
  factory DomRectList._() {
    throw new UnsupportedError("Not supported");
  }

  int get length => JS("int", "#.length", this);

  Rectangle operator [](int index) {
    if (JS("bool", "# >>> 0 !== # || # >= #", index, index, index, length))
      throw new RangeError.index(index, this);
    return JS("Rectangle", "#[#]", this, index);
  }

  void operator []=(int index, Rectangle value) {
    throw new UnsupportedError("Cannot assign element of immutable List.");
  }
  // -- start List<Rectangle> mixins.
  // Rectangle is the element type.

  set length(int value) {
    throw new UnsupportedError("Cannot resize immutable List.");
  }

  Rectangle get first {
    if (this.length > 0) {
      return JS('Rectangle', '#[0]', this);
    }
    throw new StateError("No elements");
  }

  Rectangle get last {
    int len = this.length;
    if (len > 0) {
      return JS('Rectangle', '#[#]', this, len - 1);
    }
    throw new StateError("No elements");
  }

  Rectangle get single {
    int len = this.length;
    if (len == 1) {
      return JS('Rectangle', '#[0]', this);
    }
    if (len == 0) throw new StateError("No elements");
    throw new StateError("More than one element");
  }

  Rectangle elementAt(int index) => this[index];
  // -- end List<Rectangle> mixins.

  Rectangle? item(int index) native;
}
// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMRectReadOnly")
class DomRectReadOnly extends Interceptor implements Rectangle {
  // NOTE! All code below should be common with RectangleBase.
  String toString() {
    return 'Rectangle ($left, $top) $width x $height';
  }

  bool operator ==(other) =>
      other is Rectangle &&
      left == other.left &&
      top == other.top &&
      width == other.width &&
      height == other.height;

  int get hashCode => _JenkinsSmiHash.hash4(
      left.hashCode, top.hashCode, width.hashCode, height.hashCode);

  /**
   * Computes the intersection of `this` and [other].
   *
   * The intersection of two axis-aligned rectangles, if any, is always another
   * axis-aligned rectangle.
   *
   * Returns the intersection of this and `other`, or null if they don't
   * intersect.
   */
  Rectangle? intersection(Rectangle other) {
    var x0 = max(left, other.left);
    var x1 = min(left + width, other.left + other.width);

    if (x0 <= x1) {
      var y0 = max(top, other.top);
      var y1 = min(top + height, other.top + other.height);

      if (y0 <= y1) {
        return new Rectangle(x0, y0, x1 - x0, y1 - y0);
      }
    }
    return null;
  }

  /**
   * Returns true if `this` intersects [other].
   */
  bool intersects(Rectangle<num> other) {
    return (left <= other.left + other.width &&
        other.left <= left + width &&
        top <= other.top + other.height &&
        other.top <= top + height);
  }

  /**
   * Returns a new rectangle which completely contains `this` and [other].
   */
  Rectangle boundingBox(Rectangle other) {
    var right = max(this.left + this.width, other.left + other.width);
    var bottom = max(this.top + this.height, other.top + other.height);

    var left = min(this.left, other.left);
    var top = min(this.top, other.top);

    return new Rectangle(left, top, right - left, bottom - top);
  }

  /**
   * Tests whether `this` entirely contains [another].
   */
  bool containsRectangle(Rectangle<num> another) {
    return left <= another.left &&
        left + width >= another.left + another.width &&
        top <= another.top &&
        top + height >= another.top + another.height;
  }

  /**
   * Tests whether [another] is inside or along the edges of `this`.
   */
  bool containsPoint(Point<num> another) {
    return another.x >= left &&
        another.x <= left + width &&
        another.y >= top &&
        another.y <= top + height;
  }

  Point get topLeft => new Point(this.left, this.top);
  Point get topRight => new Point(this.left + this.width, this.top);
  Point get bottomRight =>
      new Point(this.left + this.width, this.top + this.height);
  Point get bottomLeft => new Point(this.left, this.top + this.height);

  // To suppress missing implicit constructor warnings.
  factory DomRectReadOnly._() {
    throw new UnsupportedError("Not supported");
  }

  factory DomRectReadOnly([num? x, num? y, num? width, num? height]) {
    if (height != null) {
      return DomRectReadOnly._create_1(x, y, width, height);
    }
    if (width != null) {
      return DomRectReadOnly._create_2(x, y, width);
    }
    if (y != null) {
      return DomRectReadOnly._create_3(x, y);
    }
    if (x != null) {
      return DomRectReadOnly._create_4(x);
    }
    return DomRectReadOnly._create_5();
  }
  static DomRectReadOnly _create_1(x, y, width, height) => JS(
      'DomRectReadOnly', 'new DOMRectReadOnly(#,#,#,#)', x, y, width, height);
  static DomRectReadOnly _create_2(x, y, width) =>
      JS('DomRectReadOnly', 'new DOMRectReadOnly(#,#,#)', x, y, width);
  static DomRectReadOnly _create_3(x, y) =>
      JS('DomRectReadOnly', 'new DOMRectReadOnly(#,#)', x, y);
  static DomRectReadOnly _create_4(x) =>
      JS('DomRectReadOnly', 'new DOMRectReadOnly(#)', x);
  static DomRectReadOnly _create_5() =>
      JS('DomRectReadOnly', 'new DOMRectReadOnly()');

  // The following getter is incompatible with some browsers but
  // must be made non-nullable to match the overridden method.

  @JSName('bottom')
  num? get _bottom native;

  num get bottom => _bottom!;

  // The following getter is incompatible with some browsers but
  // must be made non-nullable to match the overridden method.

  @JSName('height')
  num? get _height native;

  num get height => _height!;

  // The following getter is incompatible with some browsers but
  // must be made non-nullable to match the overridden method.

  @JSName('left')
  num? get _left native;

  num get left => _left!;

  // The following getter is incompatible with some browsers but
  // must be made non-nullable to match the overridden method.

  @JSName('right')
  num? get _right native;

  num get right => _right!;

  // The following getter is incompatible with some browsers but
  // must be made non-nullable to match the overridden method.

  @JSName('top')
  num? get _top native;

  num get top => _top!;

  // The following getter is incompatible with some browsers but
  // must be made non-nullable to match the overridden method.

  @JSName('width')
  num? get _width native;

  num get width => _width!;

  num? get x native;

  num? get y native;

  static DomRectReadOnly fromRect([Map? other]) {
    if (other != null) {
      var other_1 = convertDartToNative_Dictionary(other);
      return _fromRect_1(other_1);
    }
    return _fromRect_2();
  }

  @JSName('fromRect')
  static DomRectReadOnly _fromRect_1(other) native;
  @JSName('fromRect')
  static DomRectReadOnly _fromRect_2() native;
}

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMStringList")
class DomStringList extends Interceptor
    with ListMixin<String>, ImmutableListMixin<String>
    implements JavaScriptIndexingBehavior<String>, List<String> {
  // To suppress missing implicit constructor warnings.
  factory DomStringList._() {
    throw new UnsupportedError("Not supported");
  }

  int get length => JS("int", "#.length", this);

  String operator [](int index) {
    if (JS("bool", "# >>> 0 !== # || # >= #", index, index, index, length))
      throw new RangeError.index(index, this);
    return JS("String", "#[#]", this, index);
  }

  void operator []=(int index, String value) {
    throw new UnsupportedError("Cannot assign element of immutable List.");
  }
  // -- start List<String> mixins.
  // String is the element type.

  set length(int value) {
    throw new UnsupportedError("Cannot resize immutable List.");
  }

  String get first {
    if (this.length > 0) {
      return JS('String', '#[0]', this);
    }
    throw new StateError("No elements");
  }

  String get last {
    int len = this.length;
    if (len > 0) {
      return JS('String', '#[#]', this, len - 1);
    }
    throw new StateError("No elements");
  }

  String get single {
    int len = this.length;
    if (len == 1) {
      return JS('String', '#[0]', this);
    }
    if (len == 0) throw new StateError("No elements");
    throw new StateError("More than one element");
  }

  String elementAt(int index) => this[index];
  // -- end List<String> mixins.

  String? item(int index) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMStringMap")
class DomStringMap extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomStringMap._() {
    throw new UnsupportedError("Not supported");
  }

  void __delete__(String name) native;

  void __setter__(String name, String value) native;

  String item(String name) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("DOMTokenList")
class DomTokenList extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory DomTokenList._() {
    throw new UnsupportedError("Not supported");
  }

  int get length native;

  String? get value native;

  set value(String? value) native;

  void add(String tokens) native;

  bool contains(String token) native;

  String? item(int index) native;

  void remove(String tokens) native;

  void replace(String token, String newToken) native;

  bool supports(String token) native;

  bool toggle(String token, [bool? force]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

class _ChildrenElementList extends ListBase<Element>
    implements NodeListWrapper {
  // Raw Element.
  final Element _element;
  final HtmlCollection _childElements;

  _ChildrenElementList._wrap(Element element)
      : _childElements = element._children as HtmlCollection,
        _element = element;

  bool contains(Object? element) => _childElements.contains(element);

  bool get isEmpty {
    return _element._firstElementChild == null;
  }

  int get length {
    return _childElements.length;
  }

  Element operator [](int index) {
    return _childElements[index] as Element;
  }

  void operator []=(int index, Element value) {
    _element._replaceChild(value, _childElements[index]);
  }

  set length(int newLength) {
    // TODO(jacobr): remove children when length is reduced.
    throw new UnsupportedError('Cannot resize element lists');
  }

  Element add(Element value) {
    _element.append(value);
    return value;
  }

  Iterator<Element> get iterator => toList().iterator;

  void addAll(Iterable<Element> iterable) {
    _addAll(_element, iterable);
  }

  static void _addAll(Element _element, Iterable<Element> iterable) {
    if (iterable is _ChildNodeListLazy) {
      iterable = new List.from(iterable);
    }

    for (Element element in iterable) {
      _element.append(element);
    }
  }

  void sort([int compare(Element a, Element b)?]) {
    throw new UnsupportedError('Cannot sort element lists');
  }

  void shuffle([Random? random]) {
    throw new UnsupportedError('Cannot shuffle element lists');
  }

  void removeWhere(bool test(Element element)) {
    _filter(test, false);
  }

  void retainWhere(bool test(Element element)) {
    _filter(test, true);
  }

  void _filter(bool test(Element element), bool retainMatching) {
    var removed;
    if (retainMatching) {
      removed = _element.children.where((e) => !test(e));
    } else {
      removed = _element.children.where(test);
    }
    for (var e in removed) e.remove();
  }

  void fillRange(int start, int end, [Element? fillValue]) {
    throw new UnimplementedError();
  }

  void replaceRange(int start, int end, Iterable<Element> iterable) {
    throw new UnimplementedError();
  }

  void removeRange(int start, int end) {
    throw new UnimplementedError();
  }

  void setRange(int start, int end, Iterable<Element> iterable,
      [int skipCount = 0]) {
    throw new UnimplementedError();
  }

  bool remove(Object? object) {
    return _remove(_element, object);
  }

  static bool _remove(Element _element, Object? object) {
    if (object is Element) {
      Element element = object;
      if (identical(element.parentNode, _element)) {
        _element._removeChild(element);
        return true;
      }
    }
    return false;
  }

  void insert(int index, Element element) {
    if (index < 0 || index > length) {
      throw new RangeError.range(index, 0, length);
    }
    if (index == length) {
      _element.append(element);
    } else {
      _element.insertBefore(element, this[index]);
    }
  }

  void insertAll(int index, Iterable<Element> iterable) {
    throw new UnimplementedError();
  }

  void setAll(int index, Iterable<Element> iterable) {
    throw new UnimplementedError();
  }

  void clear() {
    _element._clearChildren();
  }

  Element removeAt(int index) {
    final result = this[index];
    // TODO(41258): Remove null check after unfork/strong mode.
    if (result != null) {
      _element._removeChild(result);
    }
    return result;
  }

  Element removeLast() {
    final result = this.last;
    _element._removeChild(result);
    return result;
  }

  Element get first => _first(_element);

  @pragma('dart2js:noInline')
  static Element _first(Element _element) {
    Element? result = _element._firstElementChild;
    if (result == null) throw new StateError("No elements");
    return result;
  }

  Element get last {
    Element? result = _element._lastElementChild;
    if (result == null) throw new StateError("No elements");
    return result;
  }

  Element get single {
    if (length > 1) throw new StateError("More than one element");
    return first;
  }

  List<Node> get rawList => _childElements;
}

/**
 * An immutable list containing HTML elements. This list contains some
 * additional methods when compared to regular lists for ease of CSS
 * manipulation on a group of elements.
 */
abstract class ElementList<T extends Element> extends ListBase<T> {
  /**
   * The union of all CSS classes applied to the elements in this list.
   *
   * This set makes it easy to add, remove or toggle (add if not present, remove
   * if present) the classes applied to a collection of elements.
   *
   *     htmlList.classes.add('selected');
   *     htmlList.classes.toggle('isOnline');
   *     htmlList.classes.remove('selected');
   */
  CssClassSet get classes;

  /** Replace the classes with `value` for every element in this list. */
  set classes(Iterable<String> value);

  /**
   * Access the union of all [CssStyleDeclaration]s that are associated with an
   * [ElementList].
   *
   * Grouping the style objects all together provides easy editing of specific
   * properties of a collection of elements. Setting a specific property value
   * will set that property in all [Element]s in the [ElementList]. Getting a
   * specific property value will return the value of the property of the first
   * element in the [ElementList].
   */
  CssStyleDeclarationBase get style;

  /**
   * Access dimensions and position of the [Element]s in this list.
   *
   * Setting the height or width properties will set the height or width
   * property for all elements in the list. This returns a rectangle with the
   * dimensions actually available for content
   * in this element, in pixels, regardless of this element's box-sizing
   * property. Getting the height or width returns the height or width of the
   * first Element in this list.
   *
   * Unlike [Element.getBoundingClientRect], the dimensions of this rectangle
   * will return the same numerical height if the element is hidden or not.
   */
  CssRect get contentEdge;

  /**
   * Access dimensions and position of the first [Element]'s content + padding
   * box in this list.
   *
   * This returns a rectangle with the dimensions actually available for content
   * in this element, in pixels, regardless of this element's box-sizing
   * property. Unlike [Element.getBoundingClientRect], the dimensions of this
   * rectangle will return the same numerical height if the element is hidden
   * or not. This can be used to retrieve jQuery's `innerHeight` value for an
   * element. This is also a rectangle equalling the dimensions of clientHeight
   * and clientWidth.
   */
  CssRect get paddingEdge;

  /**
   * Access dimensions and position of the first [Element]'s content + padding +
   * border box in this list.
   *
   * This returns a rectangle with the dimensions actually available for content
   * in this element, in pixels, regardless of this element's box-sizing
   * property. Unlike [Element.getBoundingClientRect], the dimensions of this
   * rectangle will return the same numerical height if the element is hidden
   * or not. This can be used to retrieve jQuery's `outerHeight` value for an
   * element.
   */
  CssRect get borderEdge;

  /**
   * Access dimensions and position of the first [Element]'s content + padding +
   * border + margin box in this list.
   *
   * This returns a rectangle with the dimensions actually available for content
   * in this element, in pixels, regardless of this element's box-sizing
   * property. Unlike [Element.getBoundingClientRect], the dimensions of this
   * rectangle will return the same numerical height if the element is hidden
   * or not. This can be used to retrieve jQuery's `outerHeight` value for an
   * element.
   */
  CssRect get marginEdge;

  /// Stream of `abort` events handled by this [Element].
  ElementStream<Event> get onAbort;

  /// Stream of `beforecopy` events handled by this [Element].
  ElementStream<Event> get onBeforeCopy;

  /// Stream of `beforecut` events handled by this [Element].
  ElementStream<Event> get onBeforeCut;

  /// Stream of `beforepaste` events handled by this [Element].
  ElementStream<Event> get onBeforePaste;

  /// Stream of `blur` events handled by this [Element].
  ElementStream<Event> get onBlur;

  ElementStream<Event> get onCanPlay;

  ElementStream<Event> get onCanPlayThrough;

  /// Stream of `change` events handled by this [Element].
  ElementStream<Event> get onChange;

  /// Stream of `click` events handled by this [Element].
  ElementStream<MouseEvent> get onClick;

  /// Stream of `contextmenu` events handled by this [Element].
  ElementStream<MouseEvent> get onContextMenu;

  /// Stream of `copy` events handled by this [Element].
  ElementStream<ClipboardEvent> get onCopy;

  /// Stream of `cut` events handled by this [Element].
  ElementStream<ClipboardEvent> get onCut;

  /// Stream of `doubleclick` events handled by this [Element].
  @DomName('Element.ondblclick')
  ElementStream<Event> get onDoubleClick;

  /**
   * A stream of `drag` events fired when this element currently being dragged.
   *
   * A `drag` event is added to this stream as soon as the drag begins.
   * A `drag` event is also added to this stream at intervals while the drag
   * operation is still ongoing.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDrag;

  /**
   * A stream of `dragend` events fired when this element completes a drag
   * operation.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragEnd;

  /**
   * A stream of `dragenter` events fired when a dragged object is first dragged
   * over this element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragEnter;

  /**
   * A stream of `dragleave` events fired when an object being dragged over this
   * element leaves this element's target area.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragLeave;

  /**
   * A stream of `dragover` events fired when a dragged object is currently
   * being dragged over this element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragOver;

  /**
   * A stream of `dragstart` events fired when this element starts being
   * dragged.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragStart;

  /**
   * A stream of `drop` events fired when a dragged object is dropped on this
   * element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDrop;

  ElementStream<Event> get onDurationChange;

  ElementStream<Event> get onEmptied;

  ElementStream<Event> get onEnded;

  /// Stream of `error` events handled by this [Element].
  ElementStream<Event> get onError;

  /// Stream of `focus` events handled by this [Element].
  ElementStream<Event> get onFocus;

  /// Stream of `input` events handled by this [Element].
  ElementStream<Event> get onInput;

  /// Stream of `invalid` events handled by this [Element].
  ElementStream<Event> get onInvalid;

  /// Stream of `keydown` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyDown;

  /// Stream of `keypress` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyPress;

  /// Stream of `keyup` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyUp;

  /// Stream of `load` events handled by this [Element].
  ElementStream<Event> get onLoad;

  ElementStream<Event> get onLoadedData;

  ElementStream<Event> get onLoadedMetadata;

  /// Stream of `mousedown` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseDown;

  /// Stream of `mouseenter` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseEnter;

  /// Stream of `mouseleave` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseLeave;

  /// Stream of `mousemove` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseMove;

  /// Stream of `mouseout` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseOut;

  /// Stream of `mouseover` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseOver;

  /// Stream of `mouseup` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseUp;

  /// Stream of `mousewheel` events handled by this [Element].
  ElementStream<WheelEvent> get onMouseWheel;

  /// Stream of `paste` events handled by this [Element].
  ElementStream<ClipboardEvent> get onPaste;

  ElementStream<Event> get onPause;

  ElementStream<Event> get onPlay;

  ElementStream<Event> get onPlaying;

  ElementStream<Event> get onRateChange;

  /// Stream of `reset` events handled by this [Element].
  ElementStream<Event> get onReset;

  ElementStream<Event> get onResize;

  /// Stream of `scroll` events handled by this [Element].
  ElementStream<Event> get onScroll;

  /// Stream of `search` events handled by this [Element].
  ElementStream<Event> get onSearch;

  ElementStream<Event> get onSeeked;

  ElementStream<Event> get onSeeking;

  /// Stream of `select` events handled by this [Element].
  ElementStream<Event> get onSelect;

  /// Stream of `selectstart` events handled by this [Element].
  ElementStream<Event> get onSelectStart;

  ElementStream<Event> get onStalled;

  /// Stream of `submit` events handled by this [Element].
  ElementStream<Event> get onSubmit;

  ElementStream<Event> get onSuspend;

  ElementStream<Event> get onTimeUpdate;

  /// Stream of `touchcancel` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchCancel;

  /// Stream of `touchend` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchEnd;

  /// Stream of `touchenter` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchEnter;

  /// Stream of `touchleave` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchLeave;

  /// Stream of `touchmove` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchMove;

  /// Stream of `touchstart` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchStart;

  /// Stream of `transitionend` events handled by this [Element].
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.FIREFOX)
  @SupportedBrowser(SupportedBrowser.IE, '10')
  @SupportedBrowser(SupportedBrowser.SAFARI)
  ElementStream<TransitionEvent> get onTransitionEnd;

  ElementStream<Event> get onVolumeChange;

  ElementStream<Event> get onWaiting;

  /// Stream of `fullscreenchange` events handled by this [Element].
  ElementStream<Event> get onFullscreenChange;

  /// Stream of `fullscreenerror` events handled by this [Element].
  ElementStream<Event> get onFullscreenError;

  ElementStream<WheelEvent> get onWheel;
}

// Wrapper over an immutable NodeList to make it implement ElementList.
//
// Clients are {`Document`, `DocumentFragment`}.`querySelectorAll` which are
// declared to return `ElementList`.  This provides all the static analysis
// benefit so there is no need for this class have a constrained type parameter.
//
class _FrozenElementList<E extends Element> extends ListBase<E>
    implements ElementList<E>, NodeListWrapper {
  final List<Node> _nodeList;

  _FrozenElementList._wrap(this._nodeList) {
    assert(this._nodeList.every((element) => element is E),
        "Query expects only HTML elements of type $E but found ${this._nodeList.firstWhere((e) => e is! E)}");
  }

  int get length => _nodeList.length;

  E operator [](int index) => _nodeList[index] as E;

  void operator []=(int index, E value) {
    throw new UnsupportedError('Cannot modify list');
  }

  set length(int newLength) {
    throw new UnsupportedError('Cannot modify list');
  }

  void sort([Comparator<E>? compare]) {
    throw new UnsupportedError('Cannot sort list');
  }

  void shuffle([Random? random]) {
    throw new UnsupportedError('Cannot shuffle list');
  }

  E get first => _nodeList.first as E;

  E get last => _nodeList.last as E;

  E get single => _nodeList.single as E;

  CssClassSet get classes => new _MultiElementCssClassSet(this);

  CssStyleDeclarationBase get style => new _CssStyleDeclarationSet(this);

  set classes(Iterable<String> value) {
    // TODO(sra): This might be faster for Sets:
    //
    //     new _MultiElementCssClassSet(this).writeClasses(value)
    //
    // as the code below converts the Iterable[value] to a string multiple
    // times.  Maybe compute the string and set className here.
    forEach((e) => e.classes = value);
  }

  CssRect get contentEdge => new _ContentCssListRect(this);

  CssRect get paddingEdge => this.first.paddingEdge;

  CssRect get borderEdge => this.first.borderEdge;

  CssRect get marginEdge => this.first.marginEdge;

  List<Node> get rawList => _nodeList;

  /// Stream of `abort` events handled by this [Element].
  ElementStream<Event> get onAbort => Element.abortEvent._forElementList(this);

  /// Stream of `beforecopy` events handled by this [Element].
  ElementStream<Event> get onBeforeCopy =>
      Element.beforeCopyEvent._forElementList(this);

  /// Stream of `beforecut` events handled by this [Element].
  ElementStream<Event> get onBeforeCut =>
      Element.beforeCutEvent._forElementList(this);

  /// Stream of `beforepaste` events handled by this [Element].
  ElementStream<Event> get onBeforePaste =>
      Element.beforePasteEvent._forElementList(this);

  /// Stream of `blur` events handled by this [Element].
  ElementStream<Event> get onBlur => Element.blurEvent._forElementList(this);

  ElementStream<Event> get onCanPlay =>
      Element.canPlayEvent._forElementList(this);

  ElementStream<Event> get onCanPlayThrough =>
      Element.canPlayThroughEvent._forElementList(this);

  /// Stream of `change` events handled by this [Element].
  ElementStream<Event> get onChange =>
      Element.changeEvent._forElementList(this);

  /// Stream of `click` events handled by this [Element].
  ElementStream<MouseEvent> get onClick =>
      Element.clickEvent._forElementList(this);

  /// Stream of `contextmenu` events handled by this [Element].
  ElementStream<MouseEvent> get onContextMenu =>
      Element.contextMenuEvent._forElementList(this);

  /// Stream of `copy` events handled by this [Element].
  ElementStream<ClipboardEvent> get onCopy =>
      Element.copyEvent._forElementList(this);

  /// Stream of `cut` events handled by this [Element].
  ElementStream<ClipboardEvent> get onCut =>
      Element.cutEvent._forElementList(this);

  /// Stream of `doubleclick` events handled by this [Element].
  @DomName('Element.ondblclick')
  ElementStream<Event> get onDoubleClick =>
      Element.doubleClickEvent._forElementList(this);

  /**
   * A stream of `drag` events fired when this element currently being dragged.
   *
   * A `drag` event is added to this stream as soon as the drag begins.
   * A `drag` event is also added to this stream at intervals while the drag
   * operation is still ongoing.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDrag =>
      Element.dragEvent._forElementList(this);

  /**
   * A stream of `dragend` events fired when this element completes a drag
   * operation.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragEnd =>
      Element.dragEndEvent._forElementList(this);

  /**
   * A stream of `dragenter` events fired when a dragged object is first dragged
   * over this element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragEnter =>
      Element.dragEnterEvent._forElementList(this);

  /**
   * A stream of `dragleave` events fired when an object being dragged over this
   * element leaves this element's target area.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragLeave =>
      Element.dragLeaveEvent._forElementList(this);

  /**
   * A stream of `dragover` events fired when a dragged object is currently
   * being dragged over this element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragOver =>
      Element.dragOverEvent._forElementList(this);

  /**
   * A stream of `dragstart` events fired when this element starts being
   * dragged.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragStart =>
      Element.dragStartEvent._forElementList(this);

  /**
   * A stream of `drop` events fired when a dragged object is dropped on this
   * element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDrop =>
      Element.dropEvent._forElementList(this);

  ElementStream<Event> get onDurationChange =>
      Element.durationChangeEvent._forElementList(this);

  ElementStream<Event> get onEmptied =>
      Element.emptiedEvent._forElementList(this);

  ElementStream<Event> get onEnded => Element.endedEvent._forElementList(this);

  /// Stream of `error` events handled by this [Element].
  ElementStream<Event> get onError => Element.errorEvent._forElementList(this);

  /// Stream of `focus` events handled by this [Element].
  ElementStream<Event> get onFocus => Element.focusEvent._forElementList(this);

  /// Stream of `input` events handled by this [Element].
  ElementStream<Event> get onInput => Element.inputEvent._forElementList(this);

  /// Stream of `invalid` events handled by this [Element].
  ElementStream<Event> get onInvalid =>
      Element.invalidEvent._forElementList(this);

  /// Stream of `keydown` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyDown =>
      Element.keyDownEvent._forElementList(this);

  /// Stream of `keypress` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyPress =>
      Element.keyPressEvent._forElementList(this);

  /// Stream of `keyup` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyUp =>
      Element.keyUpEvent._forElementList(this);

  /// Stream of `load` events handled by this [Element].
  ElementStream<Event> get onLoad => Element.loadEvent._forElementList(this);

  ElementStream<Event> get onLoadedData =>
      Element.loadedDataEvent._forElementList(this);

  ElementStream<Event> get onLoadedMetadata =>
      Element.loadedMetadataEvent._forElementList(this);

  /// Stream of `mousedown` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseDown =>
      Element.mouseDownEvent._forElementList(this);

  /// Stream of `mouseenter` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseEnter =>
      Element.mouseEnterEvent._forElementList(this);

  /// Stream of `mouseleave` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseLeave =>
      Element.mouseLeaveEvent._forElementList(this);

  /// Stream of `mousemove` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseMove =>
      Element.mouseMoveEvent._forElementList(this);

  /// Stream of `mouseout` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseOut =>
      Element.mouseOutEvent._forElementList(this);

  /// Stream of `mouseover` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseOver =>
      Element.mouseOverEvent._forElementList(this);

  /// Stream of `mouseup` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseUp =>
      Element.mouseUpEvent._forElementList(this);

  /// Stream of `mousewheel` events handled by this [Element].
  ElementStream<WheelEvent> get onMouseWheel =>
      Element.mouseWheelEvent._forElementList(this);

  /// Stream of `paste` events handled by this [Element].
  ElementStream<ClipboardEvent> get onPaste =>
      Element.pasteEvent._forElementList(this);

  ElementStream<Event> get onPause => Element.pauseEvent._forElementList(this);

  ElementStream<Event> get onPlay => Element.playEvent._forElementList(this);

  ElementStream<Event> get onPlaying =>
      Element.playingEvent._forElementList(this);

  ElementStream<Event> get onRateChange =>
      Element.rateChangeEvent._forElementList(this);

  /// Stream of `reset` events handled by this [Element].
  ElementStream<Event> get onReset => Element.resetEvent._forElementList(this);

  ElementStream<Event> get onResize =>
      Element.resizeEvent._forElementList(this);

  /// Stream of `scroll` events handled by this [Element].
  ElementStream<Event> get onScroll =>
      Element.scrollEvent._forElementList(this);

  /// Stream of `search` events handled by this [Element].
  ElementStream<Event> get onSearch =>
      Element.searchEvent._forElementList(this);

  ElementStream<Event> get onSeeked =>
      Element.seekedEvent._forElementList(this);

  ElementStream<Event> get onSeeking =>
      Element.seekingEvent._forElementList(this);

  /// Stream of `select` events handled by this [Element].
  ElementStream<Event> get onSelect =>
      Element.selectEvent._forElementList(this);

  /// Stream of `selectstart` events handled by this [Element].
  ElementStream<Event> get onSelectStart =>
      Element.selectStartEvent._forElementList(this);

  ElementStream<Event> get onStalled =>
      Element.stalledEvent._forElementList(this);

  /// Stream of `submit` events handled by this [Element].
  ElementStream<Event> get onSubmit =>
      Element.submitEvent._forElementList(this);

  ElementStream<Event> get onSuspend =>
      Element.suspendEvent._forElementList(this);

  ElementStream<Event> get onTimeUpdate =>
      Element.timeUpdateEvent._forElementList(this);

  /// Stream of `touchcancel` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchCancel =>
      Element.touchCancelEvent._forElementList(this);

  /// Stream of `touchend` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchEnd =>
      Element.touchEndEvent._forElementList(this);

  /// Stream of `touchenter` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchEnter =>
      Element.touchEnterEvent._forElementList(this);

  /// Stream of `touchleave` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchLeave =>
      Element.touchLeaveEvent._forElementList(this);

  /// Stream of `touchmove` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchMove =>
      Element.touchMoveEvent._forElementList(this);

  /// Stream of `touchstart` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchStart =>
      Element.touchStartEvent._forElementList(this);

  /// Stream of `transitionend` events handled by this [Element].
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.FIREFOX)
  @SupportedBrowser(SupportedBrowser.IE, '10')
  @SupportedBrowser(SupportedBrowser.SAFARI)
  ElementStream<TransitionEvent> get onTransitionEnd =>
      Element.transitionEndEvent._forElementList(this);

  ElementStream<Event> get onVolumeChange =>
      Element.volumeChangeEvent._forElementList(this);

  ElementStream<Event> get onWaiting =>
      Element.waitingEvent._forElementList(this);

  /// Stream of `fullscreenchange` events handled by this [Element].
  ElementStream<Event> get onFullscreenChange =>
      Element.fullscreenChangeEvent._forElementList(this);

  /// Stream of `fullscreenerror` events handled by this [Element].
  ElementStream<Event> get onFullscreenError =>
      Element.fullscreenErrorEvent._forElementList(this);

  ElementStream<WheelEvent> get onWheel =>
      Element.wheelEvent._forElementList(this);
}

/**
 * An abstract class, which all HTML elements extend.
 */
@Native("Element")
class Element extends Node
    implements
        NonDocumentTypeChildNode,
        GlobalEventHandlers,
        ParentNode,
        ChildNode {
  /**
   * Creates an HTML element from a valid fragment of HTML.
   *
   *     var element = new Element.html('<div class="foo">content</div>');
   *
   * The HTML fragment should contain only one single root element, any
   * leading or trailing text nodes will be removed.
   *
   * The HTML fragment is parsed as if it occurred within the context of a
   * `<body>` tag, this means that special elements such as `<caption>` which
   * must be parsed within the scope of a `<table>` element will be dropped. Use
   * [createFragment] to parse contextual HTML fragments.
   *
   * Unless a validator is provided this will perform the default validation
   * and remove all scriptable elements and attributes.
   *
   * See also:
   *
   * * [NodeValidator]
   *
   */
  factory Element.html(String? html,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    var fragment = document.body!.createFragment(html,
        validator: validator, treeSanitizer: treeSanitizer);

    return fragment.nodes.where((e) => e is Element).single as Element;
  }

  /**
   * Custom element creation constructor.
   *
   * This constructor is used by the DOM when a custom element has been
   * created. It can only be invoked by subclasses of Element from
   * that classes created constructor.
   *
   *     class CustomElement extends Element {
   *       factory CustomElement() => new Element.tag('x-custom');
   *
   *       CustomElement.created() : super.created() {
   *          // Perform any element initialization.
   *       }
   *     }
   *     document.registerElement('x-custom', CustomElement);
   */
  Element.created() : super._created();

  /**
   * Creates the HTML element specified by the tag name.
   *
   * This is similar to [Document.createElement].
   * [tag] should be a valid HTML tag name. If [tag] is an unknown tag then
   * this will create an [UnknownElement].
   *
   *     var divElement = new Element.tag('div');
   *     print(divElement is DivElement); // 'true'
   *     var myElement = new Element.tag('unknownTag');
   *     print(myElement is UnknownElement); // 'true'
   *
   * For standard elements it is better to use the element type constructors:
   *
   *     var element = new DivElement();
   *
   * It is better to use e.g `new CanvasElement()` because the type of the
   * expression is `CanvasElement`, whereas the type of `Element.tag` is the
   * less specific `Element`.
   *
   * See also:
   *
   * * [isTagSupported]
   */
  factory Element.tag(String tag, [String? typeExtension]) =>
      _ElementFactoryProvider.createElement_tag(tag, typeExtension);

  /// Creates a new `<a>` element.
  ///
  /// This is equivalent to calling `new Element.tag('a')`.
  factory Element.a() => new AnchorElement();

  /// Creates a new `<article>` element.
  ///
  /// This is equivalent to calling `new Element.tag('article')`.
  factory Element.article() => new Element.tag('article');

  /// Creates a new `<aside>` element.
  ///
  /// This is equivalent to calling `new Element.tag('aside')`.
  factory Element.aside() => new Element.tag('aside');

  /// Creates a new `<audio>` element.
  ///
  /// This is equivalent to calling `new Element.tag('audio')`.
  factory Element.audio() => new Element.tag('audio');

  /// Creates a new `<br>` element.
  ///
  /// This is equivalent to calling `new Element.tag('br')`.
  factory Element.br() => new BRElement();

  /// Creates a new `<canvas>` element.
  ///
  /// This is equivalent to calling `new Element.tag('canvas')`.
  factory Element.canvas() => new CanvasElement();

  /// Creates a new `<div>` element.
  ///
  /// This is equivalent to calling `new Element.tag('div')`.
  factory Element.div() => new DivElement();

  /// Creates a new `<footer>` element.
  ///
  /// This is equivalent to calling `new Element.tag('footer')`.
  factory Element.footer() => new Element.tag('footer');

  /// Creates a new `<header>` element.
  ///
  /// This is equivalent to calling `new Element.tag('header')`.
  factory Element.header() => new Element.tag('header');

  /// Creates a new `<hr>` element.
  ///
  /// This is equivalent to calling `new Element.tag('hr')`.
  factory Element.hr() => new Element.tag('hr');

  /// Creates a new `<iframe>` element.
  ///
  /// This is equivalent to calling `new Element.tag('iframe')`.
  factory Element.iframe() => new Element.tag('iframe');

  /// Creates a new `<img>` element.
  ///
  /// This is equivalent to calling `new Element.tag('img')`.
  factory Element.img() => new Element.tag('img');

  /// Creates a new `<li>` element.
  ///
  /// This is equivalent to calling `new Element.tag('li')`.
  factory Element.li() => new Element.tag('li');

  /// Creates a new `<nav>` element.
  ///
  /// This is equivalent to calling `new Element.tag('nav')`.
  factory Element.nav() => new Element.tag('nav');

  /// Creates a new `<ol>` element.
  ///
  /// This is equivalent to calling `new Element.tag('ol')`.
  factory Element.ol() => new Element.tag('ol');

  /// Creates a new `<option>` element.
  ///
  /// This is equivalent to calling `new Element.tag('option')`.
  factory Element.option() => new Element.tag('option');

  /// Creates a new `<p>` element.
  ///
  /// This is equivalent to calling `new Element.tag('p')`.
  factory Element.p() => new Element.tag('p');

  /// Creates a new `<pre>` element.
  ///
  /// This is equivalent to calling `new Element.tag('pre')`.
  factory Element.pre() => new Element.tag('pre');

  /// Creates a new `<section>` element.
  ///
  /// This is equivalent to calling `new Element.tag('section')`.
  factory Element.section() => new Element.tag('section');

  /// Creates a new `<select>` element.
  ///
  /// This is equivalent to calling `new Element.tag('select')`.
  factory Element.select() => new Element.tag('select');

  /// Creates a new `<span>` element.
  ///
  /// This is equivalent to calling `new Element.tag('span')`.
  factory Element.span() => new Element.tag('span');

  /// Creates a new `<svg>` element.
  ///
  /// This is equivalent to calling `new Element.tag('svg')`.
  factory Element.svg() => new Element.tag('svg');

  /// Creates a new `<table>` element.
  ///
  /// This is equivalent to calling `new Element.tag('table')`.
  factory Element.table() => new Element.tag('table');

  /// Creates a new `<td>` element.
  ///
  /// This is equivalent to calling `new Element.tag('td')`.
  factory Element.td() => new Element.tag('td');

  /// Creates a new `<textarea>` element.
  ///
  /// This is equivalent to calling `new Element.tag('textarea')`.
  factory Element.textarea() => new Element.tag('textarea');

  /// Creates a new `<th>` element.
  ///
  /// This is equivalent to calling `new Element.tag('th')`.
  factory Element.th() => new Element.tag('th');

  /// Creates a new `<tr>` element.
  ///
  /// This is equivalent to calling `new Element.tag('tr')`.
  factory Element.tr() => new Element.tag('tr');

  /// Creates a new `<ul>` element.
  ///
  /// This is equivalent to calling `new Element.tag('ul')`.
  factory Element.ul() => new Element.tag('ul');

  /// Creates a new `<video>` element.
  ///
  /// This is equivalent to calling `new Element.tag('video')`.
  factory Element.video() => new Element.tag('video');

  /**
   * All attributes on this element.
   *
   * Any modifications to the attribute map will automatically be applied to
   * this element.
   *
   * This only includes attributes which are not in a namespace
   * (such as 'xlink:href'), additional attributes can be accessed via
   * [getNamespacedAttributes].
   */
  Map<String, String> get attributes => new _ElementAttributeMap(this);

  set attributes(Map<String, String> value) {
    Map<String, String> attributes = this.attributes;
    attributes.clear();
    for (String key in value.keys) {
      attributes[key] = value[key]!;
    }
  }

  @pragma('dart2js:tryInline')
  String? getAttribute(String name) {
    // TODO(41258): Delete this assertion after forcing strong mode.
    // Protect [name] against string conversion to "null" or "undefined".
    assert(name != null, 'Attribute name cannot be null');
    return _getAttribute(name);
  }

  @pragma('dart2js:tryInline')
  String? getAttributeNS(String? namespaceURI, String name) {
    // TODO(41258): Delete this assertion after forcing strong mode.
    // Protect [name] against string conversion to "null" or "undefined".
    // [namespaceURI] does not need protecting, both `null` and `undefined` map to `null`.
    assert(name != null, 'Attribute name cannot be null');
    return _getAttributeNS(namespaceURI, name);
  }

  @pragma('dart2js:tryInline')
  bool hasAttribute(String name) {
    // TODO(41258): Delete this assertion after forcing strong mode.
    // Protect [name] against string conversion to "null" or "undefined".
    assert(name != null, 'Attribute name cannot be null');
    return _hasAttribute(name);
  }

  @pragma('dart2js:tryInline')
  bool hasAttributeNS(String? namespaceURI, String name) {
    // TODO(41258): Delete this assertion after forcing strong mode.
    // Protect [name] against string conversion to "null" or "undefined".
    // [namespaceURI] does not need protecting, both `null` and `undefined` map to `null`.
    assert(name != null, 'Attribute name cannot be null');
    return _hasAttributeNS(namespaceURI, name);
  }

  @pragma('dart2js:tryInline')
  void removeAttribute(String name) {
    // TODO(41258): Delete this assertion after forcing strong mode.
    // Protect [name] against string conversion to "null" or "undefined".
    assert(name != null, 'Attribute name cannot be null');
    _removeAttribute(name);
  }

  @pragma('dart2js:tryInline')
  void removeAttributeNS(String? namespaceURI, String name) {
    // TODO(41258): Delete this assertion after forcing strong mode.
    // Protect [name] against string conversion to "null" or "undefined".
    assert(name != null, 'Attribute name cannot be null');
    _removeAttributeNS(namespaceURI, name);
  }

  @pragma('dart2js:tryInline')
  void setAttribute(String name, String value) {
    // TODO(41258): Delete these assertions after forcing strong mode.
    // Protect [name] against string conversion to "null" or "undefined".
    assert(name != null, 'Attribute name cannot be null');
    // TODO(sra): assert(value != null, 'Attribute value cannot be null.');
    _setAttribute(name, value);
  }

  @pragma('dart2js:tryInline')
  void setAttributeNS(String? namespaceURI, String name, String value) {
    // TODO(41258): Delete these assertions after forcing strong mode.
    // Protect [name] against string conversion to "null" or "undefined".
    assert(name != null, 'Attribute name cannot be null');
    // TODO(sra): assert(value != null, 'Attribute value cannot be null.');
    _setAttributeNS(namespaceURI, name, value);
  }

  /**
   * List of the direct children of this element.
   *
   * This collection can be used to add and remove elements from the document.
   *
   *     var item = new DivElement();
   *     item.text = 'Something';
   *     document.body.children.add(item) // Item is now displayed on the page.
   *     for (var element in document.body.children) {
   *       element.style.background = 'red'; // Turns every child of body red.
   *     }
   */
  List<Element> get children => new _ChildrenElementList._wrap(this);

  List<Node> get _children =>
      // Element.children always returns the same list-like object which is a
      // live view on the underlying DOM tree. So we can GVN it and remove it if
      // unused.
      JS(
          'returns:HtmlCollection;creates:HtmlCollection;'
              'depends:none;effects:none;gvn:true',
          '#.children',
          this);

  set children(List<Element> value) {
    // Copy list first since we don't want liveness during iteration.
    var copy = value.toList();
    var children = this.children;
    children.clear();
    children.addAll(copy);
  }

  /**
   * Finds all descendent elements of this element that match the specified
   * group of selectors.
   *
   * [selectors] should be a string using CSS selector syntax.
   *
   *     var items = element.querySelectorAll('.itemClassName');
   *
   * For details about CSS selector syntax, see the
   * [CSS selector specification](http://www.w3.org/TR/css3-selectors/).
   */
  ElementList<T> querySelectorAll<T extends Element>(String selectors) =>
      new _FrozenElementList<T>._wrap(_querySelectorAll(selectors));

  @JSName('setApplyScroll')
  void _setApplyScroll(ScrollStateCallback scrollStateCallback,
      String nativeScrollBehavior) native;

  Future<ScrollState> setApplyScroll(String nativeScrollBehavior) {
    var completer = new Completer<ScrollState>();
    _setApplyScroll((value) {
      completer.complete(value);
    }, nativeScrollBehavior);
    return completer.future;
  }

  @JSName('setDistributeScroll')
  void _setDistributeScroll(ScrollStateCallback scrollStateCallback,
      String nativeScrollBehavior) native;

  Future<ScrollState> setDistributeScroll(String nativeScrollBehavior) {
    var completer = new Completer<ScrollState>();
    _setDistributeScroll((value) {
      completer.complete(value);
    }, nativeScrollBehavior);
    return completer.future;
  }

  /**
   * The set of CSS classes applied to this element.
   *
   * This set makes it easy to add, remove or toggle the classes applied to
   * this element.
   *
   *     element.classes.add('selected');
   *     element.classes.toggle('isOnline');
   *     element.classes.remove('selected');
   */
  CssClassSet get classes => new _ElementCssClassSet(this);

  set classes(Iterable<String> value) {
    // TODO(sra): Do this without reading the classes in clear() and addAll(),
    // or writing the classes in clear().
    CssClassSet classSet = classes;
    classSet.clear();
    classSet.addAll(value);
  }

  /**
   * Allows access to all custom data attributes (data-*) set on this element.
   *
   * The keys for the map must follow these rules:
   *
   * * The name must not begin with 'xml'.
   * * The name cannot contain a semi-colon (';').
   * * The name cannot contain any capital letters.
   *
   * Any keys from markup will be converted to camel-cased keys in the map.
   *
   * For example, HTML specified as:
   *
   *     <div data-my-random-value='value'></div>
   *
   * Would be accessed in Dart as:
   *
   *     var value = element.dataset['myRandomValue'];
   *
   * See also:
   *
   * * [Custom data
   *   attributes](http://dev.w3.org/html5/spec-preview/global-attributes.html#custom-data-attribute)
   */
  Map<String, String> get dataset => new _DataAttributeMap(attributes);

  set dataset(Map<String, String> value) {
    final data = this.dataset;
    data.clear();
    for (String key in value.keys) {
      data[key] = value[key]!;
    }
  }

  /**
   * Gets a map for manipulating the attributes of a particular namespace.
   *
   * This is primarily useful for SVG attributes such as xref:link.
   */
  Map<String, String> getNamespacedAttributes(String namespace) {
    return new _NamespacedAttributeMap(this, namespace);
  }

  /**
   * The set of all CSS values applied to this element, including inherited
   * and default values.
   *
   * The computedStyle contains values that are inherited from other
   * sources, such as parent elements or stylesheets. This differs from the
   * [style] property, which contains only the values specified directly on this
   * element.
   *
   * PseudoElement can be values such as `::after`, `::before`, `::marker`,
   * `::line-marker`.
   *
   * See also:
   *
   * * [Cascade and Inheritance](https://developer.mozilla.org/en-US/docs/Learn/CSS/Introduction_to_CSS/Cascade_and_inheritance)
   *   from MDN.
   * * [Pseudo-elements](https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements)
   *   from MDN.
   */
  CssStyleDeclaration getComputedStyle([String? pseudoElement]) {
    if (pseudoElement == null) {
      pseudoElement = '';
    }
    // TODO(jacobr): last param should be null, see b/5045788
    return window._getComputedStyle(this, pseudoElement);
  }

  /**
   * Gets the position of this element relative to the client area of the page.
   */
  Rectangle get client =>
      new Rectangle(clientLeft!, clientTop!, clientWidth, clientHeight);

  /**
   * Gets the offset of this element relative to its offsetParent.
   */
  Rectangle get offset =>
      new Rectangle(offsetLeft, offsetTop, offsetWidth, offsetHeight);

  /**
   * Adds the specified text after the last child of this element.
   */
  void appendText(String text) {
    this.append(new Text(text));
  }

  /**
   * Parses the specified text as HTML and adds the resulting node after the
   * last child of this element.
   */
  void appendHtml(String text,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    this.insertAdjacentHtml('beforeend', text,
        validator: validator, treeSanitizer: treeSanitizer);
  }

  /**
   * Checks to see if the tag name is supported by the current platform.
   *
   * The tag should be a valid HTML tag name.
   */
  static bool isTagSupported(String tag) {
    var e = _ElementFactoryProvider.createElement_tag(tag, null);
    return e is Element && !(e is UnknownElement);
  }

  /**
   * Called by the DOM when this element has been inserted into the live
   * document.
   *
   * More information can be found in the
   * [Custom Elements](http://w3c.github.io/webcomponents/spec/custom/#dfn-attached-callback)
   * draft specification.
   */
  void attached() {
    // For the deprecation period, call the old callback.
    enteredView();
  }

  /**
   * Called by the DOM when this element has been removed from the live
   * document.
   *
   * More information can be found in the
   * [Custom Elements](http://w3c.github.io/webcomponents/spec/custom/#dfn-detached-callback)
   * draft specification.
   */
  void detached() {
    // For the deprecation period, call the old callback.
    leftView();
  }

  /** *Deprecated*: override [attached] instead. */
  @deprecated
  void enteredView() {}

  List<Rectangle> getClientRects() {
    var value = _getClientRects();

    // If no prototype we need one for the world to hookup to the proper Dart class.
    var jsProto = JS('', '#.prototype', value);
    if (jsProto == null) {
      JS('', '#.prototype = Object.create(null)', value);
    }

    applyExtension('DOMRectList', value);

    return value;
  }

  /** *Deprecated*: override [detached] instead. */
  @deprecated
  void leftView() {}

  /**
   * Creates a new AnimationEffect object whose target element is the object
   * on which the method is called, and calls the play() method of the
   * AnimationTimeline object of the document timeline of the node document
   * of the element, passing the newly created AnimationEffect as the argument
   * to the method. Returns an Animation for the effect.
   *
   * Examples
   *
   *     var animation = elem.animate([{"opacity": 75}, {"opacity": 0}], 200);
   *
   *     var animation = elem.animate([
   *       {"transform": "translate(100px, -100%)"},
   *       {"transform" : "translate(400px, 500px)"}
   *     ], 1500);
   *
   * The [frames] parameter is an Iterable<Map>, where the
   * map entries specify CSS animation effects. The
   * [timing] parameter can be a double, representing the number of
   * milliseconds for the transition, or a Map with fields corresponding to
   * those of the [timing] object.
   */
  @SupportedBrowser(SupportedBrowser.CHROME, '36')
  Animation animate(Iterable<Map<String, dynamic>> frames, [timing]) {
    if (frames is! Iterable || !(frames.every((x) => x is Map))) {
      throw new ArgumentError("The frames parameter should be a List of Maps "
          "with frame information");
    }
    var convertedFrames;
    if (frames is Iterable) {
      convertedFrames = frames.map(convertDartToNative_Dictionary).toList();
    } else {
      convertedFrames = frames;
    }
    var convertedTiming =
        timing is Map ? convertDartToNative_Dictionary(timing) : timing;
    return convertedTiming == null
        ? _animate(convertedFrames)
        : _animate(convertedFrames, convertedTiming);
  }

  @JSName('animate')
  Animation _animate(Object effect, [timing]) native;
  /**
   * Called by the DOM whenever an attribute on this has been changed.
   */
  void attributeChanged(String name, String oldValue, String newValue) {}

  @Returns('String')
  // Non-null for Elements.
  String get localName => JS('String', '#', _localName);

  /**
   * A URI that identifies the XML namespace of this element.
   *
   * `null` if no namespace URI is specified.
   *
   * ## Other resources
   *
   * * [Node.namespaceURI](http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-NodeNSname)
   *   from W3C.
   */
  String? get namespaceUri => _namespaceUri;

  /**
   * The string representation of this element.
   *
   * This is equivalent to reading the [localName] property.
   */
  String toString() => localName;

  /**
   * Scrolls this element into view.
   *
   * Only one of of the alignment options may be specified at a time.
   *
   * If no options are specified then this will attempt to scroll the minimum
   * amount needed to bring the element into view.
   *
   * Note that alignCenter is currently only supported on WebKit platforms. If
   * alignCenter is specified but not supported then this will fall back to
   * alignTop.
   *
   * See also:
   *
   * * [scrollIntoView](https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView)
   *   from MDN.
   * * [scrollIntoViewIfNeeded](https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoViewIfNeeded)
   *   from MDN.
   */
  void scrollIntoView([ScrollAlignment? alignment]) {
    var hasScrollIntoViewIfNeeded = true;
    hasScrollIntoViewIfNeeded =
        JS('bool', '!!(#.scrollIntoViewIfNeeded)', this);
    if (alignment == ScrollAlignment.TOP) {
      this._scrollIntoView(true);
    } else if (alignment == ScrollAlignment.BOTTOM) {
      this._scrollIntoView(false);
    } else if (hasScrollIntoViewIfNeeded) {
      if (alignment == ScrollAlignment.CENTER) {
        this._scrollIntoViewIfNeeded(true);
      } else {
        this._scrollIntoViewIfNeeded();
      }
    } else {
      this._scrollIntoView();
    }
  }

  /**
   * Static factory designed to expose `mousewheel` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<WheelEvent> mouseWheelEvent =
      const _CustomEventStreamProvider<WheelEvent>(
          Element._determineMouseWheelEventType);

  static String _determineMouseWheelEventType(EventTarget e) => 'wheel';

  /**
   * Static factory designed to expose `transitionend` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<TransitionEvent> transitionEndEvent =
      const _CustomEventStreamProvider<TransitionEvent>(
          Element._determineTransitionEventType);

  static String _determineTransitionEventType(EventTarget e) {
    // Unfortunately the normal 'ontransitionend' style checks don't work here.
    if (Device.isWebKit) {
      return 'webkitTransitionEnd';
    } else if (Device.isOpera) {
      return 'oTransitionEnd';
    }
    return 'transitionend';
  }

  /**
   * Inserts text into the DOM at the specified location.
   *
   * To see the possible values for [where], read the doc for
   * [insertAdjacentHtml].
   *
   * See also:
   *
   * * [insertAdjacentHtml]
   */
  void insertAdjacentText(String where, String text) {
    if (JS('bool', '!!#.insertAdjacentText', this)) {
      _insertAdjacentText(where, text);
    } else {
      _insertAdjacentNode(where, new Text(text));
    }
  }

  @JSName('insertAdjacentText')
  void _insertAdjacentText(String where, String text) native;

  /**
   * Parses text as an HTML fragment and inserts it into the DOM at the
   * specified location.
   *
   * The [where] parameter indicates where to insert the HTML fragment:
   *
   * * 'beforeBegin': Immediately before this element.
   * * 'afterBegin': As the first child of this element.
   * * 'beforeEnd': As the last child of this element.
   * * 'afterEnd': Immediately after this element.
   *
   * ```dart
   *     var html = '<div class="something">content</div>';
   *     // Inserts as the first child
   *     document.body.insertAdjacentHtml('afterBegin', html);
   *     var createdElement = document.body.children[0];
   *     print(createdElement.classes[0]); // Prints 'something'
   * ```
   * 
   * See also:
   *
   * * [insertAdjacentText]
   * * [insertAdjacentElement]
   */
  void insertAdjacentHtml(String where, String html,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    if (treeSanitizer is _TrustedHtmlTreeSanitizer) {
      _insertAdjacentHtml(where, html);
    } else {
      _insertAdjacentNode(
          where,
          createFragment(html,
              validator: validator, treeSanitizer: treeSanitizer));
    }
  }

  @JSName('insertAdjacentHTML')
  void _insertAdjacentHtml(String where, String text) native;

  /**
   * Inserts [element] into the DOM at the specified location.
   *
   * To see the possible values for [where], read the doc for
   * [insertAdjacentHtml].
   *
   * See also:
   *
   * * [insertAdjacentHtml]
   */
  Element insertAdjacentElement(String where, Element element) {
    if (JS('bool', '!!#.insertAdjacentElement', this)) {
      _insertAdjacentElement(where, element);
    } else {
      _insertAdjacentNode(where, element);
    }
    return element;
  }

  @JSName('insertAdjacentElement')
  void _insertAdjacentElement(String where, Element element) native;

  void _insertAdjacentNode(String where, Node node) {
    switch (where.toLowerCase()) {
      case 'beforebegin':
        this.parentNode!.insertBefore(node, this);
        break;
      case 'afterbegin':
        var first = this.nodes.length > 0 ? this.nodes[0] : null;
        this.insertBefore(node, first);
        break;
      case 'beforeend':
        this.append(node);
        break;
      case 'afterend':
        this.parentNode!.insertBefore(node, this.nextNode);
        break;
      default:
        throw new ArgumentError("Invalid position ${where}");
    }
  }

  /**
   * Checks if this element matches the CSS selectors.
   */
  bool matches(String selectors) {
    if (JS('bool', '!!#.matches', this)) {
      return JS('bool', '#.matches(#)', this, selectors);
    } else if (JS('bool', '!!#.webkitMatchesSelector', this)) {
      return JS('bool', '#.webkitMatchesSelector(#)', this, selectors);
    } else if (JS('bool', '!!#.mozMatchesSelector', this)) {
      return JS('bool', '#.mozMatchesSelector(#)', this, selectors);
    } else if (JS('bool', '!!#.msMatchesSelector', this)) {
      return JS('bool', '#.msMatchesSelector(#)', this, selectors);
    } else if (JS('bool', '!!#.oMatchesSelector', this)) {
      return JS('bool', '#.oMatchesSelector(#)', this, selectors);
    } else {
      throw new UnsupportedError("Not supported on this platform");
    }
  }

  /** Checks if this element or any of its parents match the CSS selectors. */
  bool matchesWithAncestors(String selectors) {
    var elem = this as Element?;
    do {
      if (elem!.matches(selectors)) return true;
      elem = elem.parent;
    } while (elem != null);
    return false;
  }

  /**
   * Creates a new shadow root for this shadow host.
   *
   * ## Other resources
   *
   * * [Shadow DOM 101](http://www.html5rocks.com/en/tutorials/webcomponents/shadowdom/)
   *   from HTML5Rocks.
   * * [Shadow DOM specification](http://www.w3.org/TR/shadow-dom/) from W3C.
   */
  @SupportedBrowser(SupportedBrowser.CHROME, '25')
  ShadowRoot createShadowRoot() {
    return JS(
        'ShadowRoot',
        '(#.createShadowRoot || #.webkitCreateShadowRoot).call(#)',
        this,
        this,
        this);
  }

  /**
   * The shadow root of this shadow host.
   *
   * ## Other resources
   *
   * * [Shadow DOM 101](http://www.html5rocks.com/en/tutorials/webcomponents/shadowdom/)
   *   from HTML5Rocks.
   * * [Shadow DOM specification](http://www.w3.org/TR/shadow-dom/)
   *   from W3C.
   */
  @SupportedBrowser(SupportedBrowser.CHROME, '25')
  ShadowRoot? get shadowRoot =>
      JS('ShadowRoot|Null', '#.shadowRoot || #.webkitShadowRoot', this, this);

  /**
   * Access this element's content position.
   *
   * This returns a rectangle with the dimensions actually available for content
   * in this element, in pixels, regardless of this element's box-sizing
   * property. Unlike [getBoundingClientRect], the dimensions of this rectangle
   * will return the same numerical height if the element is hidden or not.
   *
   * _Important_ _note_: use of this method _will_ perform CSS calculations that
   * can trigger a browser reflow. Therefore, use of this property _during_ an
   * animation frame is discouraged. See also:
   * [Browser Reflow](https://developers.google.com/speed/articles/reflow)
   */
  CssRect get contentEdge => new _ContentCssRect(this);

  /**
   * Access the dimensions and position of this element's content + padding box.
   *
   * This returns a rectangle with the dimensions actually available for content
   * in this element, in pixels, regardless of this element's box-sizing
   * property. Unlike [getBoundingClientRect], the dimensions of this rectangle
   * will return the same numerical height if the element is hidden or not. This
   * can be used to retrieve jQuery's
   * [innerHeight](http://api.jquery.com/innerHeight/) value for an element.
   * This is also a rectangle equalling the dimensions of clientHeight and
   * clientWidth.
   *
   * _Important_ _note_: use of this method _will_ perform CSS calculations that
   * can trigger a browser reflow. Therefore, use of this property _during_ an
   * animation frame is discouraged. See also:
   * [Browser Reflow](https://developers.google.com/speed/articles/reflow)
   */
  CssRect get paddingEdge => new _PaddingCssRect(this);

  /**
   * Access the dimensions and position of this element's content + padding +
   * border box.
   *
   * This returns a rectangle with the dimensions actually available for content
   * in this element, in pixels, regardless of this element's box-sizing
   * property. Unlike [getBoundingClientRect], the dimensions of this rectangle
   * will return the same numerical height if the element is hidden or not. This
   * can be used to retrieve jQuery's
   * [outerHeight](http://api.jquery.com/outerHeight/) value for an element.
   *
   * _Important_ _note_: use of this method _will_ perform CSS calculations that
   * can trigger a browser reflow. Therefore, use of this property _during_ an
   * animation frame is discouraged. See also:
   * [Browser Reflow](https://developers.google.com/speed/articles/reflow)
   */
  CssRect get borderEdge => new _BorderCssRect(this);

  /**
   * Access the dimensions and position of this element's content + padding +
   * border + margin box.
   *
   * This returns a rectangle with the dimensions actually available for content
   * in this element, in pixels, regardless of this element's box-sizing
   * property. Unlike [getBoundingClientRect], the dimensions of this rectangle
   * will return the same numerical height if the element is hidden or not. This
   * can be used to retrieve jQuery's
   * [outerHeight](http://api.jquery.com/outerHeight/) value for an element.
   *
   * _Important_ _note_: use of this method will perform CSS calculations that
   * can trigger a browser reflow. Therefore, use of this property _during_ an
   * animation frame is discouraged. See also:
   * [Browser Reflow](https://developers.google.com/speed/articles/reflow)
   */
  CssRect get marginEdge => new _MarginCssRect(this);

  /**
   * Provides the coordinates of the element relative to the top of the
   * document.
   *
   * This method is the Dart equivalent to jQuery's
   * [offset](http://api.jquery.com/offset/) method.
   */
  Point get documentOffset => offsetTo(document.documentElement!);

  /**
   * Provides the offset of this element's [borderEdge] relative to the
   * specified [parent].
   *
   * This is the Dart equivalent of jQuery's
   * [position](http://api.jquery.com/position/) method. Unlike jQuery's
   * position, however, [parent] can be any parent element of `this`,
   * rather than only `this`'s immediate [offsetParent]. If the specified
   * element is _not_ an offset parent or transitive offset parent to this
   * element, an [ArgumentError] is thrown.
   */
  Point offsetTo(Element parent) {
    return Element._offsetToHelper(this, parent);
  }

  static Point _offsetToHelper(Element? current, Element parent) {
    // We're hopping from _offsetParent_ to offsetParent (not just parent), so
    // offsetParent, "tops out" at BODY. But people could conceivably pass in
    // the document.documentElement and I want it to return an absolute offset,
    // so we have the special case checking for HTML.
    bool sameAsParent = identical(current, parent);
    bool foundAsParent = sameAsParent || parent.tagName == 'HTML';
    if (current == null || sameAsParent) {
      if (foundAsParent) return new Point(0, 0);
      throw new ArgumentError("Specified element is not a transitive offset "
          "parent of this element.");
    }
    Element? parentOffset = current.offsetParent;
    Point p = Element._offsetToHelper(parentOffset, parent);
    return new Point(p.x + current.offsetLeft, p.y + current.offsetTop);
  }

  static HtmlDocument? _parseDocument;
  static Range? _parseRange;
  static NodeValidatorBuilder? _defaultValidator;
  static _ValidatingTreeSanitizer? _defaultSanitizer;

  /**
   * Create a DocumentFragment from the HTML fragment and ensure that it follows
   * the sanitization rules specified by the validator or treeSanitizer.
   *
   * If the default validation behavior is too restrictive then a new
   * NodeValidator should be created, either extending or wrapping a default
   * validator and overriding the validation APIs.
   *
   * The treeSanitizer is used to walk the generated node tree and sanitize it.
   * A custom treeSanitizer can also be provided to perform special validation
   * rules but since the API is more complex to implement this is discouraged.
   *
   * The returned tree is guaranteed to only contain nodes and attributes which
   * are allowed by the provided validator.
   *
   * See also:
   *
   * * [NodeValidator]
   * * [NodeTreeSanitizer]
   */
  DocumentFragment createFragment(String? html,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    if (treeSanitizer == null) {
      if (validator == null) {
        if (_defaultValidator == null) {
          _defaultValidator = new NodeValidatorBuilder.common();
        }
        validator = _defaultValidator;
      }
      if (_defaultSanitizer == null) {
        _defaultSanitizer = new _ValidatingTreeSanitizer(validator!);
      } else {
        _defaultSanitizer!.validator = validator!;
      }
      treeSanitizer = _defaultSanitizer;
    } else if (validator != null) {
      throw new ArgumentError(
          'validator can only be passed if treeSanitizer is null');
    }

    if (_parseDocument == null) {
      _parseDocument = document.implementation!.createHtmlDocument('');
      _parseRange = _parseDocument!.createRange();

      // Workaround for Safari bug. Was also previously Chrome bug 229142
      // - URIs are not resolved in new doc.
      BaseElement base = _parseDocument!.createElement('base') as BaseElement;
      base.href = document.baseUri!;
      _parseDocument!.head!.append(base);
    }

    // TODO(terry): Fixes Chromium 50 change no body after createHtmlDocument()
    if (_parseDocument!.body == null) {
      _parseDocument!.body =
          _parseDocument!.createElement("body") as BodyElement;
    }

    var contextElement;
    if (this is BodyElement) {
      contextElement = _parseDocument!.body!;
    } else {
      contextElement = _parseDocument!.createElement(tagName);
      _parseDocument!.body!.append(contextElement);
    }
    DocumentFragment fragment;
    if (Range.supportsCreateContextualFragment &&
        _canBeUsedToCreateContextualFragment) {
      _parseRange!.selectNodeContents(contextElement);
      // createContextualFragment expects a non-nullable html string.
      // If null is passed, it gets converted to 'null' instead.
      fragment = _parseRange!.createContextualFragment(html ?? 'null');
    } else {
      contextElement._innerHtml = html;

      fragment = _parseDocument!.createDocumentFragment();
      while (contextElement.firstChild != null) {
        fragment.append(contextElement.firstChild);
      }
    }
    if (contextElement != _parseDocument!.body) {
      contextElement.remove();
    }

    treeSanitizer!.sanitizeTree(fragment);
    // Copy the fragment over to the main document (fix for 14184)
    document.adoptNode(fragment);

    return fragment;
  }

  /** Test if createContextualFragment is supported for this element type */
  bool get _canBeUsedToCreateContextualFragment =>
      !_cannotBeUsedToCreateContextualFragment;

  /** Test if createContextualFragment is NOT supported for this element type */
  bool get _cannotBeUsedToCreateContextualFragment =>
      _tagsForWhichCreateContextualFragmentIsNotSupported.contains(tagName);

  /**
   * A hard-coded list of the tag names for which createContextualFragment
   * isn't supported.
   */
  static const _tagsForWhichCreateContextualFragmentIsNotSupported = const [
    'HEAD',
    'AREA',
    'BASE',
    'BASEFONT',
    'BR',
    'COL',
    'COLGROUP',
    'EMBED',
    'FRAME',
    'FRAMESET',
    'HR',
    'IMAGE',
    'IMG',
    'INPUT',
    'ISINDEX',
    'LINK',
    'META',
    'PARAM',
    'SOURCE',
    'STYLE',
    'TITLE',
    'WBR'
  ];

  /**
   * Parses the HTML fragment and sets it as the contents of this element.
   *
   * This uses the default sanitization behavior to sanitize the HTML fragment,
   * use [setInnerHtml] to override the default behavior.
   */
  set innerHtml(String? html) {
    this.setInnerHtml(html);
  }

  /**
   * Parses the HTML fragment and sets it as the contents of this element.
   * This ensures that the generated content follows the sanitization rules
   * specified by the validator or treeSanitizer.
   *
   * If the default validation behavior is too restrictive then a new
   * NodeValidator should be created, either extending or wrapping a default
   * validator and overriding the validation APIs.
   *
   * The treeSanitizer is used to walk the generated node tree and sanitize it.
   * A custom treeSanitizer can also be provided to perform special validation
   * rules but since the API is more complex to implement this is discouraged.
   *
   * The resulting tree is guaranteed to only contain nodes and attributes which
   * are allowed by the provided validator.
   *
   * See also:
   *
   * * [NodeValidator]
   * * [NodeTreeSanitizer]
   */
  void setInnerHtml(String? html,
      {NodeValidator? validator, NodeTreeSanitizer? treeSanitizer}) {
    text = null;
    if (treeSanitizer is _TrustedHtmlTreeSanitizer) {
      _innerHtml = html;
    } else {
      append(createFragment(html,
          validator: validator, treeSanitizer: treeSanitizer));
    }
  }

  String? get innerHtml => _innerHtml;

  @JSName('innerText')
  String get innerText native;
  set innerText(String value) native;

  /**
   * This is an ease-of-use accessor for event streams which should only be
   * used when an explicit accessor is not available.
   */
  ElementEvents get on => new ElementEvents(this);

  /**
   * Verify if any of the attributes that we use in the sanitizer look unexpected,
   * possibly indicating DOM clobbering attacks.
   *
   * Those attributes are: attributes, lastChild, children, previousNode and tagName.
   */
  static bool _hasCorruptedAttributes(Element element) {
    return JS(
        'bool',
        r'''
       (function(element) {
         if (!(element.attributes instanceof NamedNodeMap)) {
	   return true;
	 }
         // If something has corrupted the traversal we want to detect
         // these on not only the children (tested below) but on the node itself
         // in case it was bypassed.
         if (element["id"] == 'lastChild' || element["name"] == 'lastChild' ||
             element["id"] == 'previousSibling' || element["name"] == 'previousSibling' ||
             element["id"] == 'children' || element["name"] == 'children') {
           return true;
         }
	 var childNodes = element.childNodes;
	 if (element.lastChild &&
	     element.lastChild !== childNodes[childNodes.length -1]) {
	   return true;
	 }
	 if (element.children) { // On Safari, children can apparently be null.
  	   if (!((element.children instanceof HTMLCollection) ||
               (element.children instanceof NodeList))) {
	     return true;
	   }
	 }
         var length = 0;
         if (element.children) {
           length = element.children.length;
         }
         for (var i = 0; i < length; i++) {
           var child = element.children[i];
           // On IE it seems like we sometimes don't see the clobbered attribute,
           // perhaps as a result of an over-optimization. Also use another route
           // to check of attributes, children, or lastChild are clobbered. It may
           // seem silly to check children as we rely on children to do this iteration,
           // but it seems possible that the access to children might see the real thing,
           // allowing us to check for clobbering that may show up in other accesses.
           if (child["id"] == 'attributes' || child["name"] == 'attributes' ||
               child["id"] == 'lastChild'  || child["name"] == 'lastChild' ||
               child["id"] == 'previousSibling'  || child["name"] == 'previousSibling' ||
               child["id"] == 'children' || child["name"] == 'children') {
             return true;
           }
         }
	 return false;
          })(#)''',
        element);
  }

  /// A secondary check for corruption, needed on IE
  static bool _hasCorruptedAttributesAdditionalCheck(Element element) {
    return JS('bool', r'!(#.attributes instanceof NamedNodeMap)', element);
  }

  static String _safeTagName(element) {
    String result = 'element tag unavailable';
    try {
      if (element.tagName is String) {
        result = element.tagName;
      }
    } catch (e) {}
    return result;
  }

  Element? get offsetParent native;

  int get offsetHeight => JS<num>('num', '#.offsetHeight', this).round();

  int get offsetLeft => JS<num>('num', '#.offsetLeft', this).round();

  int get offsetTop => JS<num>('num', '#.offsetTop', this).round();

  int get offsetWidth => JS<num>('num', '#.offsetWidth', this).round();

  int get scrollHeight => JS<num>('num', '#.scrollHeight', this).round();
  int get scrollLeft => JS<num>('num', '#.scrollLeft', this).round();

  set scrollLeft(int value) {
    JS("void", "#.scrollLeft = #", this, value.round());
  }

  int get scrollTop => JS<num>('num', '#.scrollTop', this).round();

  set scrollTop(int value) {
    JS("void", "#.scrollTop = #", this, value.round());
  }

  int get scrollWidth => JS<num>('num', '#.scrollWidth', this).round();

  // To suppress missing implicit constructor warnings.
  factory Element._() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Static factory designed to expose `abort` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> abortEvent =
      const EventStreamProvider<Event>('abort');

  /**
   * Static factory designed to expose `beforecopy` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> beforeCopyEvent =
      const EventStreamProvider<Event>('beforecopy');

  /**
   * Static factory designed to expose `beforecut` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> beforeCutEvent =
      const EventStreamProvider<Event>('beforecut');

  /**
   * Static factory designed to expose `beforepaste` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> beforePasteEvent =
      const EventStreamProvider<Event>('beforepaste');

  /**
   * Static factory designed to expose `blur` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> blurEvent =
      const EventStreamProvider<Event>('blur');

  static const EventStreamProvider<Event> canPlayEvent =
      const EventStreamProvider<Event>('canplay');

  static const EventStreamProvider<Event> canPlayThroughEvent =
      const EventStreamProvider<Event>('canplaythrough');

  /**
   * Static factory designed to expose `change` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> changeEvent =
      const EventStreamProvider<Event>('change');

  /**
   * Static factory designed to expose `click` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> clickEvent =
      const EventStreamProvider<MouseEvent>('click');

  /**
   * Static factory designed to expose `contextmenu` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> contextMenuEvent =
      const EventStreamProvider<MouseEvent>('contextmenu');

  /**
   * Static factory designed to expose `copy` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<ClipboardEvent> copyEvent =
      const EventStreamProvider<ClipboardEvent>('copy');

  /**
   * Static factory designed to expose `cut` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<ClipboardEvent> cutEvent =
      const EventStreamProvider<ClipboardEvent>('cut');

  /**
   * Static factory designed to expose `doubleclick` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  @DomName('Element.dblclickEvent')
  static const EventStreamProvider<Event> doubleClickEvent =
      const EventStreamProvider<Event>('dblclick');

  /**
   * A stream of `drag` events fired when an element is currently being dragged.
   *
   * A `drag` event is added to this stream as soon as the drag begins.
   * A `drag` event is also added to this stream at intervals while the drag
   * operation is still ongoing.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  static const EventStreamProvider<MouseEvent> dragEvent =
      const EventStreamProvider<MouseEvent>('drag');

  /**
   * A stream of `dragend` events fired when an element completes a drag
   * operation.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  static const EventStreamProvider<MouseEvent> dragEndEvent =
      const EventStreamProvider<MouseEvent>('dragend');

  /**
   * A stream of `dragenter` events fired when a dragged object is first dragged
   * over an element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  static const EventStreamProvider<MouseEvent> dragEnterEvent =
      const EventStreamProvider<MouseEvent>('dragenter');

  /**
   * A stream of `dragleave` events fired when an object being dragged over an
   * element leaves the element's target area.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  static const EventStreamProvider<MouseEvent> dragLeaveEvent =
      const EventStreamProvider<MouseEvent>('dragleave');

  /**
   * A stream of `dragover` events fired when a dragged object is currently
   * being dragged over an element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  static const EventStreamProvider<MouseEvent> dragOverEvent =
      const EventStreamProvider<MouseEvent>('dragover');

  /**
   * A stream of `dragstart` events for a dragged element whose drag has begun.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  static const EventStreamProvider<MouseEvent> dragStartEvent =
      const EventStreamProvider<MouseEvent>('dragstart');

  /**
   * A stream of `drop` events fired when a dragged object is dropped on an
   * element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  static const EventStreamProvider<MouseEvent> dropEvent =
      const EventStreamProvider<MouseEvent>('drop');

  static const EventStreamProvider<Event> durationChangeEvent =
      const EventStreamProvider<Event>('durationchange');

  static const EventStreamProvider<Event> emptiedEvent =
      const EventStreamProvider<Event>('emptied');

  static const EventStreamProvider<Event> endedEvent =
      const EventStreamProvider<Event>('ended');

  /**
   * Static factory designed to expose `error` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> errorEvent =
      const EventStreamProvider<Event>('error');

  /**
   * Static factory designed to expose `focus` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> focusEvent =
      const EventStreamProvider<Event>('focus');

  /**
   * Static factory designed to expose `input` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> inputEvent =
      const EventStreamProvider<Event>('input');

  /**
   * Static factory designed to expose `invalid` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> invalidEvent =
      const EventStreamProvider<Event>('invalid');

  /**
   * Static factory designed to expose `keydown` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<KeyboardEvent> keyDownEvent =
      const EventStreamProvider<KeyboardEvent>('keydown');

  /**
   * Static factory designed to expose `keypress` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<KeyboardEvent> keyPressEvent =
      const EventStreamProvider<KeyboardEvent>('keypress');

  /**
   * Static factory designed to expose `keyup` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<KeyboardEvent> keyUpEvent =
      const EventStreamProvider<KeyboardEvent>('keyup');

  /**
   * Static factory designed to expose `load` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> loadEvent =
      const EventStreamProvider<Event>('load');

  static const EventStreamProvider<Event> loadedDataEvent =
      const EventStreamProvider<Event>('loadeddata');

  static const EventStreamProvider<Event> loadedMetadataEvent =
      const EventStreamProvider<Event>('loadedmetadata');

  /**
   * Static factory designed to expose `mousedown` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> mouseDownEvent =
      const EventStreamProvider<MouseEvent>('mousedown');

  /**
   * Static factory designed to expose `mouseenter` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> mouseEnterEvent =
      const EventStreamProvider<MouseEvent>('mouseenter');

  /**
   * Static factory designed to expose `mouseleave` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> mouseLeaveEvent =
      const EventStreamProvider<MouseEvent>('mouseleave');

  /**
   * Static factory designed to expose `mousemove` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> mouseMoveEvent =
      const EventStreamProvider<MouseEvent>('mousemove');

  /**
   * Static factory designed to expose `mouseout` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> mouseOutEvent =
      const EventStreamProvider<MouseEvent>('mouseout');

  /**
   * Static factory designed to expose `mouseover` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> mouseOverEvent =
      const EventStreamProvider<MouseEvent>('mouseover');

  /**
   * Static factory designed to expose `mouseup` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MouseEvent> mouseUpEvent =
      const EventStreamProvider<MouseEvent>('mouseup');

  /**
   * Static factory designed to expose `paste` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<ClipboardEvent> pasteEvent =
      const EventStreamProvider<ClipboardEvent>('paste');

  static const EventStreamProvider<Event> pauseEvent =
      const EventStreamProvider<Event>('pause');

  static const EventStreamProvider<Event> playEvent =
      const EventStreamProvider<Event>('play');

  static const EventStreamProvider<Event> playingEvent =
      const EventStreamProvider<Event>('playing');

  static const EventStreamProvider<Event> rateChangeEvent =
      const EventStreamProvider<Event>('ratechange');

  /**
   * Static factory designed to expose `reset` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> resetEvent =
      const EventStreamProvider<Event>('reset');

  static const EventStreamProvider<Event> resizeEvent =
      const EventStreamProvider<Event>('resize');

  /**
   * Static factory designed to expose `scroll` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> scrollEvent =
      const EventStreamProvider<Event>('scroll');

  /**
   * Static factory designed to expose `search` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> searchEvent =
      const EventStreamProvider<Event>('search');

  static const EventStreamProvider<Event> seekedEvent =
      const EventStreamProvider<Event>('seeked');

  static const EventStreamProvider<Event> seekingEvent =
      const EventStreamProvider<Event>('seeking');

  /**
   * Static factory designed to expose `select` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> selectEvent =
      const EventStreamProvider<Event>('select');

  /**
   * Static factory designed to expose `selectstart` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> selectStartEvent =
      const EventStreamProvider<Event>('selectstart');

  static const EventStreamProvider<Event> stalledEvent =
      const EventStreamProvider<Event>('stalled');

  /**
   * Static factory designed to expose `submit` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> submitEvent =
      const EventStreamProvider<Event>('submit');

  static const EventStreamProvider<Event> suspendEvent =
      const EventStreamProvider<Event>('suspend');

  static const EventStreamProvider<Event> timeUpdateEvent =
      const EventStreamProvider<Event>('timeupdate');

  /**
   * Static factory designed to expose `touchcancel` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<TouchEvent> touchCancelEvent =
      const EventStreamProvider<TouchEvent>('touchcancel');

  /**
   * Static factory designed to expose `touchend` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<TouchEvent> touchEndEvent =
      const EventStreamProvider<TouchEvent>('touchend');

  /**
   * Static factory designed to expose `touchenter` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<TouchEvent> touchEnterEvent =
      const EventStreamProvider<TouchEvent>('touchenter');

  /**
   * Static factory designed to expose `touchleave` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<TouchEvent> touchLeaveEvent =
      const EventStreamProvider<TouchEvent>('touchleave');

  /**
   * Static factory designed to expose `touchmove` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<TouchEvent> touchMoveEvent =
      const EventStreamProvider<TouchEvent>('touchmove');

  /**
   * Static factory designed to expose `touchstart` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<TouchEvent> touchStartEvent =
      const EventStreamProvider<TouchEvent>('touchstart');

  static const EventStreamProvider<Event> volumeChangeEvent =
      const EventStreamProvider<Event>('volumechange');

  static const EventStreamProvider<Event> waitingEvent =
      const EventStreamProvider<Event>('waiting');

  /**
   * Static factory designed to expose `fullscreenchange` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  static const EventStreamProvider<Event> fullscreenChangeEvent =
      const EventStreamProvider<Event>('webkitfullscreenchange');

  /**
   * Static factory designed to expose `fullscreenerror` events to event
   * handlers that are not necessarily instances of [Element].
   *
   * See [EventStreamProvider] for usage information.
   */
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  static const EventStreamProvider<Event> fullscreenErrorEvent =
      const EventStreamProvider<Event>('webkitfullscreenerror');

  static const EventStreamProvider<WheelEvent> wheelEvent =
      const EventStreamProvider<WheelEvent>('wheel');

  String get contentEditable native;

  set contentEditable(String value) native;

  String? get dir native;

  set dir(String? value) native;

  /**
   * Indicates whether the element can be dragged and dropped.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */

  bool get draggable native;

  set draggable(bool value) native;

  /**
   * Indicates whether the element is not relevant to the page's current state.
   *
   * ## Other resources
   *
   * * [Hidden attribute
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#the-hidden-attribute)
   *   from WHATWG.
   */

  bool get hidden native;

  set hidden(bool value) native;

  bool? get inert native;

  set inert(bool? value) native;

  String? get inputMode native;

  set inputMode(String? value) native;

  bool? get isContentEditable native;

  String? get lang native;

  set lang(String? value) native;

  bool? get spellcheck native;

  set spellcheck(bool? value) native;

  CssStyleDeclaration get style native;

  int? get tabIndex native;

  set tabIndex(int? value) native;

  String? get title native;

  set title(String? value) native;

  /**
   * Specifies whether this element's text content changes when the page is
   * localized.
   *
   * ## Other resources
   *
   * * [The translate
   *   attribute](https://html.spec.whatwg.org/multipage/dom.html#the-translate-attribute)
   *   from WHATWG.
   */

  bool? get translate native;

  set translate(bool? value) native;

  void blur() native;

  void click() native;

  void focus() native;

  AccessibleNode? get accessibleNode native;

  SlotElement? get assignedSlot native;

  @JSName('attributes')
  _NamedNodeMap? get _attributes native;

  String get className native;

  set className(String value) native;

  int get clientHeight native;

  int? get clientLeft native;

  int? get clientTop native;

  int get clientWidth native;

  String? get computedName native;

  String? get computedRole native;

  String get id native;

  set id(String value) native;

  @JSName('innerHTML')
  String? get _innerHtml native;

  @JSName('innerHTML')
  set _innerHtml(String? value) native;

  @JSName('localName')
  String? get _localName native;

  @JSName('namespaceURI')
  String? get _namespaceUri native;

  @JSName('outerHTML')
  String? get outerHtml native;

  @JSName('scrollHeight')
  int? get _scrollHeight native;

  @JSName('scrollLeft')
  num get _scrollLeft native;

  @JSName('scrollLeft')
  set _scrollLeft(num value) native;

  @JSName('scrollTop')
  num get _scrollTop native;

  @JSName('scrollTop')
  set _scrollTop(num value) native;

  @JSName('scrollWidth')
  int? get _scrollWidth native;

  String? get slot native;

  set slot(String? value) native;

  StylePropertyMap? get styleMap native;

  String get tagName native;

  ShadowRoot attachShadow(Map shadowRootInitDict) {
    var shadowRootInitDict_1 =
        convertDartToNative_Dictionary(shadowRootInitDict);
    return _attachShadow_1(shadowRootInitDict_1);
  }

  @JSName('attachShadow')
  ShadowRoot _attachShadow_1(shadowRootInitDict) native;

  Element? closest(String selectors) native;

  List<Animation> getAnimations() native;

  @JSName('getAttribute')
  String? _getAttribute(String name) native;

  @JSName('getAttributeNS')
  String? _getAttributeNS(String? namespaceURI, String localName) native;

  List<String> getAttributeNames() native;

  /**
   * Returns the smallest bounding rectangle that encompasses this element's
   * padding, scrollbar, and border.
   *
   * ## Other resources
   *
   * * [Element.getBoundingClientRect](https://developer.mozilla.org/en-US/docs/Web/API/Element.getBoundingClientRect)
   *   from MDN.
   * * [The getBoundingClientRect()
   *   method](http://www.w3.org/TR/cssom-view/#the-getclientrects()-and-getboundingclientrect()-methods)
   *   from W3C.
   */
  @Creates('_DomRect')
  @Returns('_DomRect|Null')
  Rectangle getBoundingClientRect() native;

  @JSName('getClientRects')
  /**
   * Returns a list of bounding rectangles for each box associated with this
   * element.
   *
   * ## Other resources
   *
   * * [Element.getClientRects](https://developer.mozilla.org/en-US/docs/Web/API/Element.getClientRects)
   *   from MDN.
   * * [The getClientRects()
   *   method](http://www.w3.org/TR/cssom-view/#the-getclientrects()-and-getboundingclientrect()-methods)
   *   from W3C.
   */
  @Creates('DomRectList')
  @Returns('DomRectList|Null')
  List<Rectangle> _getClientRects() native;

  /**
   * Returns a list of shadow DOM insertion points to which this element is
   * distributed.
   *
   * ## Other resources
   *
   * * [Shadow DOM
   *   specification](https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html)
   *   from W3C.
   */
  @Returns('NodeList')
  @Creates('NodeList')
  List<Node> getDestinationInsertionPoints() native;

  /**
   * Returns a list of nodes with the given class name inside this element.
   *
   * ## Other resources
   *
   * * [getElementsByClassName](https://developer.mozilla.org/en-US/docs/Web/API/document.getElementsByClassName)
   *   from MDN.
   * * [DOM specification](http://www.w3.org/TR/domcore/) from W3C.
   */
  @Creates('NodeList|HtmlCollection')
  @Returns('NodeList|HtmlCollection')
  List<Node> getElementsByClassName(String classNames) native;

  @JSName('getElementsByTagName')
  @Creates('NodeList|HtmlCollection')
  @Returns('NodeList|HtmlCollection')
  List<Node> _getElementsByTagName(String localName) native;

  @JSName('hasAttribute')
  bool _hasAttribute(String name) native;

  @JSName('hasAttributeNS')
  bool _hasAttributeNS(String? namespaceURI, String localName) native;

  bool hasPointerCapture(int pointerId) native;

  void releasePointerCapture(int pointerId) native;

  @JSName('removeAttribute')
  void _removeAttribute(String name) native;

  @JSName('removeAttributeNS')
  void _removeAttributeNS(String? namespaceURI, String localName) native;

  void requestPointerLock() native;

  void scroll([options_OR_x, num? y]) {
    if (options_OR_x == null && y == null) {
      _scroll_1();
      return;
    }
    if ((options_OR_x is Map) && y == null) {
      var options_1 = convertDartToNative_Dictionary(options_OR_x);
      _scroll_2(options_1);
      return;
    }
    if (y != null && (options_OR_x is num)) {
      _scroll_3(options_OR_x, y);
      return;
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }

  @JSName('scroll')
  void _scroll_1() native;
  @JSName('scroll')
  void _scroll_2(options) native;
  @JSName('scroll')
  void _scroll_3(num? x, y) native;

  void scrollBy([options_OR_x, num? y]) {
    if (options_OR_x == null && y == null) {
      _scrollBy_1();
      return;
    }
    if ((options_OR_x is Map) && y == null) {
      var options_1 = convertDartToNative_Dictionary(options_OR_x);
      _scrollBy_2(options_1);
      return;
    }
    if (y != null && (options_OR_x is num)) {
      _scrollBy_3(options_OR_x, y);
      return;
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }

  @JSName('scrollBy')
  void _scrollBy_1() native;
  @JSName('scrollBy')
  void _scrollBy_2(options) native;
  @JSName('scrollBy')
  void _scrollBy_3(num? x, y) native;

  @JSName('scrollIntoView')
  void _scrollIntoView([Object? arg]) native;

  @JSName('scrollIntoViewIfNeeded')
  void _scrollIntoViewIfNeeded([bool? centerIfNeeded]) native;

  void scrollTo([options_OR_x, num? y]) {
    if (options_OR_x == null && y == null) {
      _scrollTo_1();
      return;
    }
    if ((options_OR_x is Map) && y == null) {
      var options_1 = convertDartToNative_Dictionary(options_OR_x);
      _scrollTo_2(options_1);
      return;
    }
    if (y != null && (options_OR_x is num)) {
      _scrollTo_3(options_OR_x, y);
      return;
    }
    throw new ArgumentError("Incorrect number or type of arguments");
  }

  @JSName('scrollTo')
  void _scrollTo_1() native;
  @JSName('scrollTo')
  void _scrollTo_2(options) native;
  @JSName('scrollTo')
  void _scrollTo_3(num? x, y) native;

  @JSName('setAttribute')
  void _setAttribute(String name, String value) native;

  @JSName('setAttributeNS')
  void _setAttributeNS(String? namespaceURI, String name, String value) native;

  void setPointerCapture(int pointerId) native;

  @JSName('webkitRequestFullscreen')
  /**
   * Displays this element fullscreen.
   *
   * ## Other resources
   *
   * * [Fullscreen
   *   API](https://developer.mozilla.org/en-US/docs/Web/API/Fullscreen_API)
   *   from MDN.
   * * [Fullscreen specification](http://www.w3.org/TR/fullscreen/) from W3C.
   */
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.SAFARI)
  void requestFullscreen() native;

  // From ChildNode

  void after(Object nodes) native;

  void before(Object nodes) native;

  // From NonDocumentTypeChildNode

  Element? get nextElementSibling native;

  Element? get previousElementSibling native;

  // From ParentNode

  @JSName('childElementCount')
  int get _childElementCount native;

  @JSName('firstElementChild')
  Element? get _firstElementChild native;

  @JSName('lastElementChild')
  Element? get _lastElementChild native;

  /**
   * Finds the first descendant element of this element that matches the
   * specified group of selectors.
   *
   * [selectors] should be a string using CSS selector syntax.
   *
   *     // Gets the first descendant with the class 'classname'
   *     var element = element.querySelector('.className');
   *     // Gets the element with id 'id'
   *     var element = element.querySelector('#id');
   *     // Gets the first descendant [ImageElement]
   *     var img = element.querySelector('img');
   *
   * For details about CSS selector syntax, see the
   * [CSS selector specification](http://www.w3.org/TR/css3-selectors/).
   */
  Element? querySelector(String selectors) native;

  @JSName('querySelectorAll')
  @Creates('NodeList')
  @Returns('NodeList')
  List<Node> _querySelectorAll(String selectors) native;

  /// Stream of `abort` events handled by this [Element].
  ElementStream<Event> get onAbort => abortEvent.forElement(this);

  /// Stream of `beforecopy` events handled by this [Element].
  ElementStream<Event> get onBeforeCopy => beforeCopyEvent.forElement(this);

  /// Stream of `beforecut` events handled by this [Element].
  ElementStream<Event> get onBeforeCut => beforeCutEvent.forElement(this);

  /// Stream of `beforepaste` events handled by this [Element].
  ElementStream<Event> get onBeforePaste => beforePasteEvent.forElement(this);

  /// Stream of `blur` events handled by this [Element].
  ElementStream<Event> get onBlur => blurEvent.forElement(this);

  ElementStream<Event> get onCanPlay => canPlayEvent.forElement(this);

  ElementStream<Event> get onCanPlayThrough =>
      canPlayThroughEvent.forElement(this);

  /// Stream of `change` events handled by this [Element].
  ElementStream<Event> get onChange => changeEvent.forElement(this);

  /// Stream of `click` events handled by this [Element].
  ElementStream<MouseEvent> get onClick => clickEvent.forElement(this);

  /// Stream of `contextmenu` events handled by this [Element].
  ElementStream<MouseEvent> get onContextMenu =>
      contextMenuEvent.forElement(this);

  /// Stream of `copy` events handled by this [Element].
  ElementStream<ClipboardEvent> get onCopy => copyEvent.forElement(this);

  /// Stream of `cut` events handled by this [Element].
  ElementStream<ClipboardEvent> get onCut => cutEvent.forElement(this);

  /// Stream of `doubleclick` events handled by this [Element].
  @DomName('Element.ondblclick')
  ElementStream<Event> get onDoubleClick => doubleClickEvent.forElement(this);

  /**
   * A stream of `drag` events fired when this element currently being dragged.
   *
   * A `drag` event is added to this stream as soon as the drag begins.
   * A `drag` event is also added to this stream at intervals while the drag
   * operation is still ongoing.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDrag => dragEvent.forElement(this);

  /**
   * A stream of `dragend` events fired when this element completes a drag
   * operation.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragEnd => dragEndEvent.forElement(this);

  /**
   * A stream of `dragenter` events fired when a dragged object is first dragged
   * over this element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragEnter => dragEnterEvent.forElement(this);

  /**
   * A stream of `dragleave` events fired when an object being dragged over this
   * element leaves this element's target area.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragLeave => dragLeaveEvent.forElement(this);

  /**
   * A stream of `dragover` events fired when a dragged object is currently
   * being dragged over this element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragOver => dragOverEvent.forElement(this);

  /**
   * A stream of `dragstart` events fired when this element starts being
   * dragged.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDragStart => dragStartEvent.forElement(this);

  /**
   * A stream of `drop` events fired when a dragged object is dropped on this
   * element.
   *
   * ## Other resources
   *
   * * [Drag and drop
   *   sample](https://github.com/dart-lang/dart-samples/tree/master/html5/web/dnd/basics)
   *   based on [the tutorial](http://www.html5rocks.com/en/tutorials/dnd/basics/)
   *   from HTML5Rocks.
   * * [Drag and drop
   *   specification](https://html.spec.whatwg.org/multipage/interaction.html#dnd)
   *   from WHATWG.
   */
  ElementStream<MouseEvent> get onDrop => dropEvent.forElement(this);

  ElementStream<Event> get onDurationChange =>
      durationChangeEvent.forElement(this);

  ElementStream<Event> get onEmptied => emptiedEvent.forElement(this);

  ElementStream<Event> get onEnded => endedEvent.forElement(this);

  /// Stream of `error` events handled by this [Element].
  ElementStream<Event> get onError => errorEvent.forElement(this);

  /// Stream of `focus` events handled by this [Element].
  ElementStream<Event> get onFocus => focusEvent.forElement(this);

  /// Stream of `input` events handled by this [Element].
  ElementStream<Event> get onInput => inputEvent.forElement(this);

  /// Stream of `invalid` events handled by this [Element].
  ElementStream<Event> get onInvalid => invalidEvent.forElement(this);

  /// Stream of `keydown` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyDown => keyDownEvent.forElement(this);

  /// Stream of `keypress` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyPress => keyPressEvent.forElement(this);

  /// Stream of `keyup` events handled by this [Element].
  ElementStream<KeyboardEvent> get onKeyUp => keyUpEvent.forElement(this);

  /// Stream of `load` events handled by this [Element].
  ElementStream<Event> get onLoad => loadEvent.forElement(this);

  ElementStream<Event> get onLoadedData => loadedDataEvent.forElement(this);

  ElementStream<Event> get onLoadedMetadata =>
      loadedMetadataEvent.forElement(this);

  /// Stream of `mousedown` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseDown => mouseDownEvent.forElement(this);

  /// Stream of `mouseenter` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseEnter =>
      mouseEnterEvent.forElement(this);

  /// Stream of `mouseleave` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseLeave =>
      mouseLeaveEvent.forElement(this);

  /// Stream of `mousemove` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseMove => mouseMoveEvent.forElement(this);

  /// Stream of `mouseout` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseOut => mouseOutEvent.forElement(this);

  /// Stream of `mouseover` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseOver => mouseOverEvent.forElement(this);

  /// Stream of `mouseup` events handled by this [Element].
  ElementStream<MouseEvent> get onMouseUp => mouseUpEvent.forElement(this);

  /// Stream of `mousewheel` events handled by this [Element].
  ElementStream<WheelEvent> get onMouseWheel =>
      mouseWheelEvent.forElement(this);

  /// Stream of `paste` events handled by this [Element].
  ElementStream<ClipboardEvent> get onPaste => pasteEvent.forElement(this);

  ElementStream<Event> get onPause => pauseEvent.forElement(this);

  ElementStream<Event> get onPlay => playEvent.forElement(this);

  ElementStream<Event> get onPlaying => playingEvent.forElement(this);

  ElementStream<Event> get onRateChange => rateChangeEvent.forElement(this);

  /// Stream of `reset` events handled by this [Element].
  ElementStream<Event> get onReset => resetEvent.forElement(this);

  ElementStream<Event> get onResize => resizeEvent.forElement(this);

  /// Stream of `scroll` events handled by this [Element].
  ElementStream<Event> get onScroll => scrollEvent.forElement(this);

  /// Stream of `search` events handled by this [Element].
  ElementStream<Event> get onSearch => searchEvent.forElement(this);

  ElementStream<Event> get onSeeked => seekedEvent.forElement(this);

  ElementStream<Event> get onSeeking => seekingEvent.forElement(this);

  /// Stream of `select` events handled by this [Element].
  ElementStream<Event> get onSelect => selectEvent.forElement(this);

  /// Stream of `selectstart` events handled by this [Element].
  ElementStream<Event> get onSelectStart => selectStartEvent.forElement(this);

  ElementStream<Event> get onStalled => stalledEvent.forElement(this);

  /// Stream of `submit` events handled by this [Element].
  ElementStream<Event> get onSubmit => submitEvent.forElement(this);

  ElementStream<Event> get onSuspend => suspendEvent.forElement(this);

  ElementStream<Event> get onTimeUpdate => timeUpdateEvent.forElement(this);

  /// Stream of `touchcancel` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchCancel =>
      touchCancelEvent.forElement(this);

  /// Stream of `touchend` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchEnd => touchEndEvent.forElement(this);

  /// Stream of `touchenter` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchEnter =>
      touchEnterEvent.forElement(this);

  /// Stream of `touchleave` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchLeave =>
      touchLeaveEvent.forElement(this);

  /// Stream of `touchmove` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchMove => touchMoveEvent.forElement(this);

  /// Stream of `touchstart` events handled by this [Element].
  ElementStream<TouchEvent> get onTouchStart =>
      touchStartEvent.forElement(this);

  /// Stream of `transitionend` events handled by this [Element].
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.FIREFOX)
  @SupportedBrowser(SupportedBrowser.IE, '10')
  @SupportedBrowser(SupportedBrowser.SAFARI)
  ElementStream<TransitionEvent> get onTransitionEnd =>
      transitionEndEvent.forElement(this);

  ElementStream<Event> get onVolumeChange => volumeChangeEvent.forElement(this);

  ElementStream<Event> get onWaiting => waitingEvent.forElement(this);

  /// Stream of `fullscreenchange` events handled by this [Element].
  ElementStream<Event> get onFullscreenChange =>
      fullscreenChangeEvent.forElement(this);

  /// Stream of `fullscreenerror` events handled by this [Element].
  ElementStream<Event> get onFullscreenError =>
      fullscreenErrorEvent.forElement(this);

  ElementStream<WheelEvent> get onWheel => wheelEvent.forElement(this);
}

class _ElementFactoryProvider {
  // Optimization to improve performance until the dart2js compiler inlines this
  // method.
  static dynamic createElement_tag(String tag, String? typeExtension) {
    // Firefox may return a JS function for some types (Embed, Object).
    if (typeExtension != null) {
      return JS('Element|=Object', 'document.createElement(#, #)', tag,
          typeExtension);
    }
    // Should be able to eliminate this and just call the two-arg version above
    // with null typeExtension, but Chrome treats the tag as case-sensitive if
    // typeExtension is null.
    // https://code.google.com/p/chromium/issues/detail?id=282467
    return JS('Element|=Object', 'document.createElement(#)', tag);
  }
}

/**
 * Options for Element.scrollIntoView.
 */
class ScrollAlignment {
  final _value;
  const ScrollAlignment._internal(this._value);
  toString() => 'ScrollAlignment.$_value';

  /// Attempt to align the element to the top of the scrollable area.
  static const TOP = const ScrollAlignment._internal('TOP');

  /// Attempt to center the element in the scrollable area.
  static const CENTER = const ScrollAlignment._internal('CENTER');

  /// Attempt to align the element to the bottom of the scrollable area.
  static const BOTTOM = const ScrollAlignment._internal('BOTTOM');
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@SupportedBrowser(SupportedBrowser.CHROME)
@SupportedBrowser(SupportedBrowser.IE)
@SupportedBrowser(SupportedBrowser.SAFARI)
@Unstable()
@Native("HTMLEmbedElement")
class EmbedElement extends HtmlElement {
  // To suppress missing implicit constructor warnings.
  factory EmbedElement._() {
    throw new UnsupportedError("Not supported");
  }

  factory EmbedElement() => document.createElement("embed") as EmbedElement;
  /**
   * Constructor instantiated by the DOM when a custom element has been created.
   *
   * This can only be called by subclasses from their created constructor.
   */
  EmbedElement.created() : super.created();

  /// Checks if this type is supported on the current platform.
  static bool get supported => Element.isTagSupported('embed');

  String get height native;

  set height(String value) native;

  String? get name native;

  set name(String? value) native;

  String get src native;

  set src(String value) native;

  String get type native;

  set type(String value) native;

  String get width native;

  set width(String value) native;

  Node __getter__(String name) native;

  void __setter__(String name, Node value) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

typedef void _EntriesCallback(List entries);
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("Entry")
class Entry extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory Entry._() {
    throw new UnsupportedError("Not supported");
  }

  FileSystem? get filesystem native;

  String? get fullPath native;

  bool? get isDirectory native;

  bool? get isFile native;

  String? get name native;

  @JSName('copyTo')
  void _copyTo(DirectoryEntry parent,
      [String? name,
      _EntryCallback? successCallback,
      _ErrorCallback? errorCallback]) native;

  @JSName('copyTo')
  Future<Entry> copyTo(DirectoryEntry parent, {String? name}) {
    var completer = new Completer<Entry>();
    _copyTo(parent, name, (value) {
      completer.complete(value);
    }, (error) {
      completer.completeError(error);
    });
    return completer.future;
  }

  @JSName('getMetadata')
  void _getMetadata(MetadataCallback successCallback,
      [_ErrorCallback? errorCallback]) native;

  @JSName('getMetadata')
  Future<Metadata> getMetadata() {
    var completer = new Completer<Metadata>();
    _getMetadata((value) {
      applyExtension('Metadata', value);
      completer.complete(value);
    }, (error) {
      completer.completeError(error);
    });
    return completer.future;
  }

  @JSName('getParent')
  void _getParent(
      [_EntryCallback? successCallback, _ErrorCallback? errorCallback]) native;

  @JSName('getParent')
  Future<Entry> getParent() {
    var completer = new Completer<Entry>();
    _getParent((value) {
      applyExtension('Entry', value);
      completer.complete(value);
    }, (error) {
      completer.completeError(error);
    });
    return completer.future;
  }

  @JSName('moveTo')
  void _moveTo(DirectoryEntry parent,
      [String? name,
      _EntryCallback? successCallback,
      _ErrorCallback? errorCallback]) native;

  @JSName('moveTo')
  Future<Entry> moveTo(DirectoryEntry parent, {String? name}) {
    var completer = new Completer<Entry>();
    _moveTo(parent, name, (value) {
      completer.complete(value);
    }, (error) {
      completer.completeError(error);
    });
    return completer.future;
  }

  @JSName('remove')
  void _remove(VoidCallback successCallback, [_ErrorCallback? errorCallback])
      native;

  @JSName('remove')
  Future remove() {
    var completer = new Completer();
    _remove(() {
      completer.complete();
    }, (error) {
      completer.completeError(error);
    });
    return completer.future;
  }

  @JSName('toURL')
  String toUrl() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

typedef void _EntryCallback(Entry entry);
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

typedef void _ErrorCallback(DomException error);
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Unstable()
@Native("ErrorEvent")
class ErrorEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory ErrorEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory ErrorEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return ErrorEvent._create_1(type, eventInitDict_1);
    }
    return ErrorEvent._create_2(type);
  }
  static ErrorEvent _create_1(type, eventInitDict) =>
      JS('ErrorEvent', 'new ErrorEvent(#,#)', type, eventInitDict);
  static ErrorEvent _create_2(type) =>
      JS('ErrorEvent', 'new ErrorEvent(#)', type);

  int? get colno native;

  @Creates('Null')
  Object? get error native;

  String? get filename native;

  int? get lineno native;

  String? get message native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// WARNING: Do not edit - generated code.

@Native("Event,InputEvent,SubmitEvent")
class Event extends Interceptor {
  // In JS, canBubble and cancelable are technically required parameters to
  // init*Event. In practice, though, if they aren't provided they simply
  // default to false (since that's Boolean(undefined)).
  //
  // Contrary to JS, we default canBubble and cancelable to true, since that's
  // what people want most of the time anyway.
  factory Event(String type, {bool canBubble: true, bool cancelable: true}) {
    return new Event.eventType('Event', type,
        canBubble: canBubble, cancelable: cancelable);
  }

  /**
   * Creates a new Event object of the specified type.
   *
   * This is analogous to document.createEvent.
   * Normally events should be created via their constructors, if available.
   *
   *     var e = new Event.type('MouseEvent', 'mousedown', true, true);
   */
  factory Event.eventType(String type, String name,
      {bool canBubble: true, bool cancelable: true}) {
    final Event e = document._createEvent(type);
    e._initEvent(name, canBubble, cancelable);
    return e;
  }

  /** The CSS selector involved with event delegation. */
  String? get _selector native;
  set _selector(String? value) native;

  /**
   * A pointer to the element whose CSS selector matched within which an event
   * was fired. If this Event was not associated with any Event delegation,
   * accessing this value will throw an [UnsupportedError].
   */
  Element get matchingTarget {
    if (_selector == null) {
      throw new UnsupportedError('Cannot call matchingTarget if this Event did'
          ' not arise as a result of event delegation.');
    }
    Element? currentTarget = this.currentTarget as Element?;
    Element? target = this.target as Element?;
    var matchedTarget;
    do {
      if (target!.matches(_selector!)) return target;
      target = target.parent;
    } while (target != null && target != currentTarget!.parent);
    throw new StateError('No selector matched for populating matchedTarget.');
  }

  List<EventTarget> get path =>
      JS<bool>('bool', '!!#.composedPath', this) ? composedPath() : [];

  factory Event._(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return Event._create_1(type, eventInitDict_1);
    }
    return Event._create_2(type);
  }
  static Event _create_1(type, eventInitDict) =>
      JS('Event', 'new Event(#,#)', type, eventInitDict);
  static Event _create_2(type) => JS('Event', 'new Event(#)', type);

  /**
   * This event is being handled by the event target.
   *
   * ## Other resources
   *
   * * [Target phase](http://www.w3.org/TR/DOM-Level-3-Events/#target-phase)
   *   from W3C.
   */
  static const int AT_TARGET = 2;

  /**
   * This event is bubbling up through the target's ancestors.
   *
   * ## Other resources
   *
   * * [Bubble phase](http://www.w3.org/TR/DOM-Level-3-Events/#bubble-phase)
   *   from W3C.
   */
  static const int BUBBLING_PHASE = 3;

  /**
   * This event is propagating through the target's ancestors, starting from the
   * document.
   *
   * ## Other resources
   *
   * * [Bubble phase](http://www.w3.org/TR/DOM-Level-3-Events/#bubble-phase)
   *   from W3C.
   */
  static const int CAPTURING_PHASE = 1;

  bool? get bubbles native;

  bool? get cancelable native;

  bool? get composed native;

  EventTarget? get currentTarget =>
      _convertNativeToDart_EventTarget(this._get_currentTarget);
  @JSName('currentTarget')
  @Creates('Null')
  @Returns('EventTarget|=Object|Null')
  dynamic get _get_currentTarget native;

  bool get defaultPrevented native;

  int get eventPhase native;

  bool? get isTrusted native;

  EventTarget? get target => _convertNativeToDart_EventTarget(this._get_target);
  @JSName('target')
  @Creates('Node')
  @Returns('EventTarget|=Object')
  dynamic get _get_target native;

  num? get timeStamp native;

  String get type native;

  List<EventTarget> composedPath() native;

  @JSName('initEvent')
  void _initEvent(String type, [bool? bubbles, bool? cancelable]) native;

  void preventDefault() native;

  void stopImmediatePropagation() native;

  void stopPropagation() native;
}
// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("EventSource")
class EventSource extends EventTarget {
  factory EventSource(String url, {withCredentials: false}) {
    var parsedOptions = {
      'withCredentials': withCredentials,
    };
    return EventSource._factoryEventSource(url, parsedOptions);
  }
  // To suppress missing implicit constructor warnings.
  factory EventSource._() {
    throw new UnsupportedError("Not supported");
  }

  /**
   * Static factory designed to expose `error` events to event
   * handlers that are not necessarily instances of [EventSource].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> errorEvent =
      const EventStreamProvider<Event>('error');

  /**
   * Static factory designed to expose `message` events to event
   * handlers that are not necessarily instances of [EventSource].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<MessageEvent> messageEvent =
      const EventStreamProvider<MessageEvent>('message');

  /**
   * Static factory designed to expose `open` events to event
   * handlers that are not necessarily instances of [EventSource].
   *
   * See [EventStreamProvider] for usage information.
   */
  static const EventStreamProvider<Event> openEvent =
      const EventStreamProvider<Event>('open');

  static EventSource _factoryEventSource(String url,
      [Map? eventSourceInitDict]) {
    if (eventSourceInitDict != null) {
      var eventSourceInitDict_1 =
          convertDartToNative_Dictionary(eventSourceInitDict);
      return EventSource._create_1(url, eventSourceInitDict_1);
    }
    return EventSource._create_2(url);
  }

  static EventSource _create_1(url, eventSourceInitDict) =>
      JS('EventSource', 'new EventSource(#,#)', url, eventSourceInitDict);
  static EventSource _create_2(url) =>
      JS('EventSource', 'new EventSource(#)', url);

  static const int CLOSED = 2;

  static const int CONNECTING = 0;

  static const int OPEN = 1;

  int? get readyState native;

  String? get url native;

  bool? get withCredentials native;

  void close() native;

  /// Stream of `error` events handled by this [EventSource].
  Stream<Event> get onError => errorEvent.forTarget(this);

  /// Stream of `message` events handled by this [EventSource].
  Stream<MessageEvent> get onMessage => messageEvent.forTarget(this);

  /// Stream of `open` events handled by this [EventSource].
  Stream<Event> get onOpen => openEvent.forTarget(this);
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * Base class that supports listening for and dispatching browser events.
 *
 * Normally events are accessed via the Stream getter:
 *
 *     element.onMouseOver.listen((e) => print('Mouse over!'));
 *
 * To access bubbling events which are declared on one element, but may bubble
 * up to another element type (common for MediaElement events):
 *
 *     MediaElement.pauseEvent.forTarget(document.body).listen(...);
 *
 * To useCapture on events:
 *
 *     Element.keyDownEvent.forTarget(element, useCapture: true).listen(...);
 *
 * Custom events can be declared as:
 *
 *     class DataGenerator {
 *       static EventStreamProvider<Event> dataEvent =
 *           new EventStreamProvider('data');
 *     }
 *
 * Then listeners should access the event with:
 *
 *     DataGenerator.dataEvent.forTarget(element).listen(...);
 *
 * Custom events can also be accessed as:
 *
 *     element.on['some_event'].listen(...);
 *
 * This approach is generally discouraged as it loses the event typing and
 * some DOM events may have multiple platform-dependent event names under the
 * covers. By using the standard Stream getters you will get the platform
 * specific event name automatically.
 */
class Events {
  /* Raw event target. */
  final EventTarget _ptr;

  Events(this._ptr);

  Stream<Event> operator [](String type) {
    return new _EventStream(_ptr, type, false);
  }
}

class ElementEvents extends Events {
  static final webkitEvents = {
    'animationend': 'webkitAnimationEnd',
    'animationiteration': 'webkitAnimationIteration',
    'animationstart': 'webkitAnimationStart',
    'fullscreenchange': 'webkitfullscreenchange',
    'fullscreenerror': 'webkitfullscreenerror',
    'keyadded': 'webkitkeyadded',
    'keyerror': 'webkitkeyerror',
    'keymessage': 'webkitkeymessage',
    'needkey': 'webkitneedkey',
    'pointerlockchange': 'webkitpointerlockchange',
    'pointerlockerror': 'webkitpointerlockerror',
    'resourcetimingbufferfull': 'webkitresourcetimingbufferfull',
    'transitionend': 'webkitTransitionEnd',
    'speechchange': 'webkitSpeechChange'
  };

  ElementEvents(Element ptr) : super(ptr);

  Stream<Event> operator [](String type) {
    if (webkitEvents.keys.contains(type.toLowerCase())) {
      if (Device.isWebKit) {
        return new _ElementEventStreamImpl(
            _ptr, webkitEvents[type.toLowerCase()], false);
      }
    }
    return new _ElementEventStreamImpl(_ptr, type, false);
  }
}

/**
 * Base class for all browser objects that support events.
 *
 * Use the [on] property to add, and remove events
 * for compile-time type checks and a more concise API.
 */
@Native("EventTarget")
class EventTarget extends Interceptor {
  // Custom element created callback.
  EventTarget._created();

  /**
   * This is an ease-of-use accessor for event streams which should only be
   * used when an explicit accessor is not available.
   */
  Events get on => new Events(this);

  void addEventListener(String type, EventListener? listener,
      [bool? useCapture]) {
    // TODO(leafp): This check is avoid a bug in our dispatch code when
    // listener is null.  The browser treats this call as a no-op in this
    // case, so it's fine to short-circuit it, but we should not have to.
    if (listener != null) {
      _addEventListener(type, listener, useCapture);
    }
  }

  void removeEventListener(String type, EventListener? listener,
      [bool? useCapture]) {
    // TODO(leafp): This check is avoid a bug in our dispatch code when
    // listener is null.  The browser treats this call as a no-op in this
    // case, so it's fine to short-circuit it, but we should not have to.
    if (listener != null) {
      _removeEventListener(type, listener, useCapture);
    }
  }

  // To suppress missing implicit constructor warnings.
  factory EventTarget._() {
    throw new UnsupportedError("Not supported");
  }

  @JSName('addEventListener')
  void _addEventListener(String type, EventListener? listener, [bool? options])
      native;

  bool dispatchEvent(Event event) native;

  @JSName('removeEventListener')
  void _removeEventListener(String type, EventListener? listener,
      [bool? options]) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("ExtendableEvent")
class ExtendableEvent extends Event {
  // To suppress missing implicit constructor warnings.
  factory ExtendableEvent._() {
    throw new UnsupportedError("Not supported");
  }

  factory ExtendableEvent(String type, [Map? eventInitDict]) {
    if (eventInitDict != null) {
      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
      return ExtendableEvent._create_1(type, eventInitDict_1);
    }
    return ExtendableEvent._create_2(type);
  }
  static ExtendableEvent _create_1(type, eventInitDict) =>
      JS('ExtendableEvent', 'new ExtendableEvent(#,#)', type, eventInitDict);
  static ExtendableEvent _create_2(type) =>
      JS('ExtendableEvent', 'new ExtendableEvent(#)', type);

  void waitUntil(Future f) native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("ExtendableMessageEvent")
class ExtendableMessageEvent extends ExtendableEvent {
  // To suppress missing implicit constructor warnings.
  factory ExtendableMessageEvent._() {
    throw new UnsupportedError("Not supported");
  }

  @annotation_Creates_SerializedScriptValue
  @annotation_Returns_SerializedScriptValue
  Object? get data native;

  String? get lastEventId native;

  String? get origin native;

  List<MessagePort>? get ports native;

  @Creates('Client|ServiceWorker|MessagePort')
  @Returns('Client|ServiceWorker|MessagePort|Null')
  Object? get source native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("External")
class External extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory External._() {
    throw new UnsupportedError("Not supported");
  }

  void AddSearchProvider() native;

  void IsSearchProviderInstalled() native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("FaceDetector")
class FaceDetector extends Interceptor {
  // To suppress missing implicit constructor warnings.
  factory FaceDetector._() {
    throw new UnsupportedError("Not supported");
  }

  factory FaceDetector([Map? faceDetectorOptions]) {
    if (faceDetectorOptions != null) {
      var faceDetectorOptions_1 =
          convertDartToNative_Dictionary(faceDetectorOptions);
      return FaceDetector._create_1(faceDetectorOptions_1);
    }
    return FaceDetector._create_2();
  }
  static FaceDetector _create_1(faceDetectorOptions) =>
      JS('FaceDetector', 'new FaceDetector(#)', faceDetectorOptions);
  static FaceDetector _create_2() => JS('FaceDetector', 'new FaceDetector()');

  Future<List<dynamic>> detect(/*ImageBitmapSource*/ image) =>
      promiseToFuture<List<dynamic>>(JS("", "#.detect(#)", this, image));
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@Native("FederatedCredential")
class FederatedCredential extends Credential implements CredentialUserData {
  // To suppress missing implicit constructor warnings.
  factory FederatedCredential._() {
    throw new UnsupportedError("Not supported");
  }

  factory FederatedCredential(Map data) {
    var data_1 = convertDartToNative_Dictionary(data);
    return FederatedCredential._create_1(data_1);
  }
  static FederatedCredential _create_1(data) =>
      JS('FederatedCredential', 'new FederatedCredential(#)', data);

  String? get protocol native;

  String? get provider native;

  // From CredentialUserData

  @JSName('iconURL')
  String? get iconUrl native;

  String? get name native;
}
// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a