window.dart

// Copyright 2019 terrier989@gmail.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*
Some source code in this file was adopted from 'dart:html' in Dart SDK. See:
  https://github.com/dart-lang/sdk/tree/master/tools/dom

The source code adopted from 'dart:html' had the following license:

  Copyright 2012, the Dart project authors. All rights reserved.
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are
  met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
    * Neither the name of Google Inc. nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

part of universal_html.internal;

/// Global window.
Window get window => WindowController.topLevel.window as Window;

abstract class LocationBase {
  set href(String val);
}

class Window extends EventTarget
    with WindowBase
    implements WindowEventHandlers {
  /// Static factory designed to expose `contentloaded` events to event
  /// handlers that are not necessarily instances of [Window].
  ///
  /// See [EventStreamProvider] for usage information.
  static const EventStreamProvider<Event> contentLoadedEvent =
      EventStreamProvider<Event>('DOMContentLoaded');

  /// Static factory designed to expose `devicemotion` events to event
  /// handlers that are not necessarily instances of [Window].
  ///
  /// See [EventStreamProvider] for usage information.
  static const EventStreamProvider<DeviceMotionEvent> deviceMotionEvent =
      EventStreamProvider<DeviceMotionEvent>('devicemotion');

  /// Static factory designed to expose `deviceorientation` events to event
  /// handlers that are not necessarily instances of [Window].
  ///
  /// See [EventStreamProvider] for usage information.
  static const EventStreamProvider<DeviceOrientationEvent>
      deviceOrientationEvent =
      EventStreamProvider<DeviceOrientationEvent>('deviceorientation');

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

  static const EventStreamProvider<Event> loadStartEvent =
      EventStreamProvider<Event>('loadstart');

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

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

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

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

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

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

  static const EventStreamProvider<Event> progressEvent =
      EventStreamProvider<Event>('progress');

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

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

  /// Static factory designed to expose `animationend` events to event
  /// handlers that are not necessarily instances of [Window].
  ///
  /// See [EventStreamProvider] for usage information.
  static const EventStreamProvider<AnimationEvent> animationEndEvent =
      EventStreamProvider<AnimationEvent>('webkitAnimationEnd');

  /// Static factory designed to expose `animationiteration` events to event
  /// handlers that are not necessarily instances of [Window].
  ///
  /// See [EventStreamProvider] for usage information.
  static const EventStreamProvider<AnimationEvent> animationIterationEvent =
      EventStreamProvider<AnimationEvent>('webkitAnimationIteration');

  /// Static factory designed to expose `animationstart` events to event
  /// handlers that are not necessarily instances of [Window].
  ///
  /// See [EventStreamProvider] for usage information.
  static const EventStreamProvider<AnimationEvent> animationStartEvent =
      EventStreamProvider<AnimationEvent>('webkitAnimationStart');

  /// Indicates that file system data cannot be cleared unless given user
  /// permission.
  ///
  /// ## Other resources
  ///
  /// * [Exploring the FileSystem
  ///   APIs](http://www.html5rocks.com/en/tutorials/file/filesystem/)
  ///   from HTML5Rocks.
  /// * [File API](http://www.w3.org/TR/file-system-api/#idl-def-LocalFileSystem)
  ///   from W3C.
  static const int PERSISTENT = 1;

  /// Indicates that file system data can be cleared at any time.
  ///
  /// ## Other resources
  ///
  /// * [Exploring the FileSystem
  ///   APIs](http://www.html5rocks.com/en/tutorials/file/filesystem/) from HTML5Rocks.
  /// * [File API](http://www.w3.org/TR/file-system-api/#idl-def-LocalFileSystem)
  ///   from W3C.
  static const int TEMPORARY = 0;

  // API level getter and setter for Location.
  // TODO: The cross domain safe wrapper can be inserted here.
  /// Static factory designed to expose `beforeunload` events to event
  /// handlers that are not necessarily instances of [Window].
  ///
  /// See [EventStreamProvider] for usage information.
  static const EventStreamProvider<BeforeUnloadEvent> beforeUnloadEvent =
      EventStreamProvider('beforeunload');

  /// convertPointFromNodeToPage and convertPointFromPageToNode are removed.
  /// see http://dev.w3.org/csswg/cssom-view/#geometry
  static bool get supportsPointConversions => false;

  /// The application cache for this window.
  ///
  /// ## Other resources
  ///
  /// * [A beginner's guide to using the application
  ///   cache](http://www.html5rocks.com/en/tutorials/appcache/beginner)
  ///   from HTML5Rocks.
  /// * [Application cache
  ///   API](https://html.spec.whatwg.org/multipage/browsers.html#application-cache-api)
  ///   from WHATWG.

  late final ApplicationCache? applicationCache = ApplicationCache.internal();

  late final CacheStorage? caches = CacheStorage._();

  late final CookieStore? cookieStore = CookieStore._();

  /// *Deprecated*.

  String? defaultStatus;

  /// *Deprecated*.

  String? defaultstatus;

  late final External? external = External.internal();

  /// The current session history for this window's newest document.
  ///
  /// ## Other resources
  ///
  /// * [Loading web pages](https://html.spec.whatwg.org/multipage/browsers.html)
  ///   from WHATWG.
  @override
  late final History history = History.internal();

  /// Storage for this window that persists across sessions.
  ///
  /// ## Other resources
  ///
  /// * [DOM storage guide](https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Storage)
  ///   from MDN.
  /// * [The past, present & future of local storage for web
  ///   applications](http://diveintohtml5.info/storage.html) from Dive Into HTML5.
  /// * [Local storage specification](http://www.w3.org/TR/webstorage/#the-localstorage-attribute)
  ///   from W3C.
  late final Storage localStorage = Storage._(this);

  /// The name of this window.
  ///
  /// ## Other resources
  ///
  /// * [Window.name](https://developer.mozilla.org/en-US/docs/Web/API/Window/name)
  ///   from MDN.

  String? name;

  /// The user agent accessing this window.
  ///
  /// ## Other resources
  ///
  /// * [The navigator
  ///   object](https://html.spec.whatwg.org/multipage/webappapis.html#the-navigator-object)
  ///   from WHATWG.

  late final Navigator navigator = () {
    // Note that `as` expressions are required because of
    // "dart:html OR universal_html" confusion by the analyzer.
    final window = this as universal_html_in_browser_or_vm.Window;
    final navigator =
        internalWindowController.windowBehavior.newNavigator(window: window);
    return navigator as Navigator;
  }();

  @override
  WindowBase? opener;

  /// The height of this window including all user interface elements.
  ///
  /// ## Other resources
  ///
  /// * [Window.outerHeight](https://developer.mozilla.org/en-US/docs/Web/API/Window/outerHeight)
  ///   from MDN.
  final int outerHeight;

  /// The width of the window including all user interface elements.
  ///
  /// ## Other resources
  ///
  /// * [Window.outerWidth](https://developer.mozilla.org/en-US/docs/Web/API/Window/outerWidth)
  ///   from MDN.
  final int outerWidth;

  /// Timing and navigation data for this window.
  ///
  /// ## Other resources
  ///
  /// * [Measuring page load speed with navigation
  ///   timeing](http://www.html5rocks.com/en/tutorials/webperformance/basics/)
  ///   from HTML5Rocks.
  /// * [Navigation timing
  ///   specification](http://www.w3.org/TR/navigation-timing/) from W3C.
  @SupportedBrowser(SupportedBrowser.CHROME)
  @SupportedBrowser(SupportedBrowser.FIREFOX)
  @SupportedBrowser(SupportedBrowser.IE)
  late final Performance performance = Performance._();

  /// Storage for this window that is cleared when this session ends.
  ///
  /// ## Other resources
  ///
  /// * [DOM storage
  ///   guide](https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Storage)
  ///   from MDN.
  /// * [The past, present & future of local storage for web
  ///   applications](http://diveintohtml5.info/storage.html) from Dive Into HTML5.
  /// * [Local storage
  ///   specification](http://www.w3.org/TR/webstorage/#dom-sessionstorage) from W3C.

  late final Storage sessionStorage = Storage._(this);

  /// *Deprecated*.
  String? status;

  final WindowController internalWindowController;

  final String _initialHref;

  /// The debugging console for this window.
  late final Console console = Console.internal();

  /// The newest document in this window.
  ///
  /// ## Other resources
  ///
  /// * [Loading web
  ///   pages](https://html.spec.whatwg.org/multipage/browsers.html)
  ///   from WHATWG.
  late final Document document = () {
    // Note that `as` expressions are required because of
    // "dart:html OR universal_html" confusion by the analyzer.
    final window = this as universal_html_in_browser_or_vm.Window;
    final document =
        internalWindowController.windowBehavior.newDocument(window: window);
    return document as Document;
  }();

  /// The current location of this window.
  ///
  ///     Location currentLocation = window.location;
  ///     print(currentLocation.href); // 'http://www.example.com:80/'
  @override
  late Location location = Location.internal(href: _initialHref);

  @protected
  Selection? internalSelection;

  /// Information about the screen displaying this window.
  ///
  /// ## Other resources
  ///
  /// * [The Screen interface specification](http://www.w3.org/TR/cssom-view/#screen)
  ///   from W3C.
  late final Screen? screen = Screen.constructor();

  /// An internal constructor that's NOT part of "dart:html".
  ///
  /// This API is not for public use.
  /// We may do backwards-incompatible changes.
  Window.internal({
    required this.internalWindowController,
    required String href,
    this.outerWidth = 0,
    this.outerHeight = 0,
  })  : _initialHref = href,
        super.internal();

  /// Returns a Future that completes just before the window is about to
  /// repaint so the user can draw an animation frame.
  ///
  /// If you need to later cancel this animation, use [requestAnimationFrame]
  /// instead.
  ///
  /// The [Future] completes to a timestamp that represents a floating
  /// point value of the number of milliseconds that have elapsed since the page
  /// started to load (which is also the timestamp at this call to
  /// animationFrame).
  ///
  /// Note: The code that runs when the future completes should call
  /// [animationFrame] again for the animation to continue.
  Future<num> get animationFrame {
    final completer = Completer<num>.sync();
    requestAnimationFrame((num value) {
      completer.complete(value);
    });
    return completer.future;
  }

  Worklet? get animationWorklet => null;

  Worklet? get audioWorklet => null;

  @override
  bool? get closed => null;

  /// Entrypoint for the browser's cryptographic functions.
  ///
  /// ## Other resources
  ///
  /// * [Web cryptography API](http://www.w3.org/TR/WebCryptoAPI/) from W3C.

  Crypto? get crypto => null;

  CustomElementRegistry? get customElements => null;

  /// The ratio between physical pixels and logical CSS pixels.
  ///
  /// ## Other resources
  ///
  /// * [devicePixelRatio](http://www.quirksmode.org/blog/archives/2012/06/devicepixelrati.html)
  ///   from quirksmode.
  /// * [More about devicePixelRatio](http://www.quirksmode.org/blog/archives/2012/07/more_about_devi.html)
  ///   from quirksmode.

  num get devicePixelRatio => 1;

  /// Gets an instance of the Indexed DB factory to being using Indexed DB.
  ///
  /// Use [indexed_db.IdbFactory.supported] to check if Indexed DB is supported on the
  /// current platform.
  IdbFactory? get indexedDB => null;

  /// The height of the viewport including scrollbars.
  ///
  /// ## Other resources
  ///
  /// * [Window.innerHeight](https://developer.mozilla.org/en-US/docs/Web/API/Window/innerHeight)
  ///   from MDN.

  int? get innerHeight => null;

  /// The width of the viewport including scrollbars.
  ///
  /// ## Other resources
  ///
  /// * [Window.innerWidth](https://developer.mozilla.org/en-US/docs/Web/API/Window/innerWidth)
  ///   from MDN.

  int? get innerWidth => null;

  bool? get isSecureContext => false;

  /// This window's location bar, which displays the URL.
  ///
  /// ## Other resources
  ///
  /// * [Browser interface
  ///   elements](https://html.spec.whatwg.org/multipage/browsers.html#browser-interface-elements)
  ///   from WHATWG.

  BarProp? get locationbar => null;

  /// This window's menu bar, which displays menu commands.
  ///
  /// ## Other resources
  ///
  /// * [Browser interface
  ///   elements](https://html.spec.whatwg.org/multipage/browsers.html#browser-interface-elements)
  ///   from WHATWG.

  BarProp? get menubar => null;

  /// Whether objects are drawn offscreen before being displayed.
  ///
  /// ## Other resources
  ///
  /// * [offscreenBuffering](https://webplatform.github.io/docs/dom/HTMLElement/offscreenBuffering/)
  ///   from WebPlatform.org.

  bool? get offscreenBuffering => false;

  /// Stream of `abort` events handled by this [Window].
  Stream<Event> get onAbort => Element.abortEvent.forTarget(this);

  /// Stream of `animationend` events handled by this [Window].
  Stream<AnimationEvent> get onAnimationEnd =>
      animationEndEvent.forTarget(this);

  /// Stream of `animationiteration` events handled by this [Window].
  Stream<AnimationEvent> get onAnimationIteration =>
      animationIterationEvent.forTarget(this);

  /// Stream of `animationstart` events handled by this [Window].
  Stream<AnimationEvent> get onAnimationStart =>
      animationStartEvent.forTarget(this);

  /// Stream of `beforeunload` events handled by this [Window].
  Stream<Event> get onBeforeUnload => beforeUnloadEvent.forTarget(this);

  /// Stream of `blur` events handled by this [Window].
  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 [Window].
  Stream<Event> get onChange => Element.changeEvent.forTarget(this);

  /// Stream of `click` events handled by this [Window].
  Stream<MouseEvent> get onClick => Element.clickEvent.forTarget(this);

  /// Stream of `contentloaded` events handled by this [Window].
  Stream<Event> get onContentLoaded => contentLoadedEvent.forTarget(this);

  /// Stream of `contextmenu` events handled by this [Window].
  Stream<MouseEvent> get onContextMenu =>
      Element.contextMenuEvent.forTarget(this);

  /// Stream of `devicemotion` events handled by this [Window].
  Stream<DeviceMotionEvent> get onDeviceMotion =>
      deviceMotionEvent.forTarget(this);

  /// Stream of `deviceorientation` events handled by this [Window].
  Stream<DeviceOrientationEvent> get onDeviceOrientation =>
      deviceOrientationEvent.forTarget(this);

  /// Stream of `doubleclick` events handled by this [Window].
  @DomName('Window.ondblclick')
  Stream<Event> get onDoubleClick => Element.doubleClickEvent.forTarget(this);

  /// Stream of `drag` events handled by this [Window].
  Stream<MouseEvent> get onDrag => Element.dragEvent.forTarget(this);

  /// Stream of `dragend` events handled by this [Window].
  Stream<MouseEvent> get onDragEnd => Element.dragEndEvent.forTarget(this);

  /// Stream of `dragenter` events handled by this [Window].
  Stream<MouseEvent> get onDragEnter => Element.dragEnterEvent.forTarget(this);

  /// Stream of `dragleave` events handled by this [Window].
  Stream<MouseEvent> get onDragLeave => Element.dragLeaveEvent.forTarget(this);

  /// Stream of `dragover` events handled by this [Window].
  Stream<MouseEvent> get onDragOver => Element.dragOverEvent.forTarget(this);

  /// Stream of `dragstart` events handled by this [Window].
  Stream<MouseEvent> get onDragStart => Element.dragStartEvent.forTarget(this);

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

  /// Stream of `focus` events handled by this [Window].
  Stream<Event> get onFocus => Element.focusEvent.forTarget(this);

  /// Stream of `hashchange` events handled by this [Window].
  @override
  Stream<Event> get onHashChange => hashChangeEvent.forTarget(this);

  // From WindowBase64

  /// Stream of `input` events handled by this [Window].
  Stream<Event> get onInput => Element.inputEvent.forTarget(this);

  /// Stream of `invalid` events handled by this [Window].
  Stream<Event> get onInvalid => Element.invalidEvent.forTarget(this);

  /// Stream of `keydown` events handled by this [Window].
  Stream<KeyboardEvent> get onKeyDown => Element.keyDownEvent.forTarget(this);

  /// Stream of `keypress` events handled by this [Window].
  Stream<KeyboardEvent> get onKeyPress => Element.keyPressEvent.forTarget(this);

  /// Stream of `keyup` events handled by this [Window].
  Stream<KeyboardEvent> get onKeyUp => Element.keyUpEvent.forTarget(this);

  /// Stream of `load` events handled by this [Window].
  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<Event> get onLoadStart => loadStartEvent.forTarget(this);

  /// Stream of `message` events handled by this [Window].
  @override
  Stream<MessageEvent> get onMessage => messageEvent.forTarget(this);

  /// Stream of `mousedown` events handled by this [Window].
  Stream<MouseEvent> get onMouseDown => Element.mouseDownEvent.forTarget(this);

  /// Stream of `mouseenter` events handled by this [Window].
  Stream<MouseEvent> get onMouseEnter =>
      Element.mouseEnterEvent.forTarget(this);

  /// Stream of `mouseleave` events handled by this [Window].
  Stream<MouseEvent> get onMouseLeave =>
      Element.mouseLeaveEvent.forTarget(this);

  /// Stream of `mousemove` events handled by this [Window].
  Stream<MouseEvent> get onMouseMove => Element.mouseMoveEvent.forTarget(this);

  /// Stream of `mouseout` events handled by this [Window].
  Stream<MouseEvent> get onMouseOut => Element.mouseOutEvent.forTarget(this);

  /// Stream of `mouseover` events handled by this [Window].
  Stream<MouseEvent> get onMouseOver => Element.mouseOverEvent.forTarget(this);

  /// Stream of `mouseup` events handled by this [Window].
  Stream<MouseEvent> get onMouseUp => Element.mouseUpEvent.forTarget(this);

  /// Stream of `mousewheel` events handled by this [Window].
  Stream<WheelEvent> get onMouseWheel =>
      Element.mouseWheelEvent.forTarget(this);

  /// Stream of `offline` events handled by this [Window].
  @override
  Stream<Event> get onOffline => offlineEvent.forTarget(this);

  /// Stream of `online` events handled by this [Window].
  @override
  Stream<Event> get onOnline => onlineEvent.forTarget(this);

  /// Stream of `pagehide` events handled by this [Window].
  Stream<Event> get onPageHide => pageHideEvent.forTarget(this);

  /// Stream of `pageshow` events handled by this [Window].
  Stream<Event> get onPageShow => pageShowEvent.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 of `popstate` events handled by this [Window].
  @override
  Stream<PopStateEvent> get onPopState => popStateEvent.forTarget(this);

  Stream<Event> get onProgress => progressEvent.forTarget(this);

  Stream<Event> get onRateChange => Element.rateChangeEvent.forTarget(this);

  /// Stream of `reset` events handled by this [Window].
  Stream<Event> get onReset => Element.resetEvent.forTarget(this);

  /// Stream of `resize` events handled by this [Window].
  Stream<Event> get onResize => Element.resizeEvent.forTarget(this);

  /// Stream of `scroll` events handled by this [Window].
  Stream<Event> get onScroll => Element.scrollEvent.forTarget(this);

  /// Stream of `search` events handled by this [Window].
  Stream<Event> get onSearch => Element.searchEvent.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 [Window].
  Stream<Event> get onSelect => Element.selectEvent.forTarget(this);

  Stream<Event> get onStalled => Element.stalledEvent.forTarget(this);

  /// Stream of `storage` events handled by this [Window].
  @override
  Stream<StorageEvent> get onStorage => storageEvent.forTarget(this);

  /// Stream of `submit` events handled by this [Window].
  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 [Window].
  Stream<TouchEvent> get onTouchCancel =>
      Element.touchCancelEvent.forTarget(this);

  /// Stream of `touchend` events handled by this [Window].
  Stream<TouchEvent> get onTouchEnd => Element.touchEndEvent.forTarget(this);

  /// Stream of `touchmove` events handled by this [Window].
  Stream<TouchEvent> get onTouchMove => Element.touchMoveEvent.forTarget(this);

  /// Stream of `touchstart` events handled by this [Window].
  Stream<TouchEvent> get onTouchStart =>
      Element.touchStartEvent.forTarget(this);

  /// Stream of `transitionend` events handled by this [Window].
  Stream<TransitionEvent> get onTransitionEnd =>
      Element.transitionEndEvent.forTarget(this);

  /// Stream of `unload` events handled by this [Window].
  @override
  Stream<Event> get onUnload => unloadEvent.forTarget(this);

  Stream<Event> get onVolumeChange => Element.volumeChangeEvent.forTarget(this);

  Stream<Event> get onWaiting => Element.waitingEvent.forTarget(this);

  /// Stream of `wheel` events handled by this [Window].
  Stream<WheelEvent> get onWheel => Element.wheelEvent.forTarget(this);

  int? get orientation => 0;

  String? get origin => null;

  int get pageXOffset => 0;

  int get pageYOffset => 0;

  // From WindowBase64

  @override
  WindowBase? get parent => null;

  /// The distance from the left side of the screen to the left side of this
  /// window.
  ///
  /// ## Other resources
  ///
  /// * [The Screen interface specification](http://www.w3.org/TR/cssom-view/#screen)
  ///   from W3C.

  int? get screenLeft => null;

  /// The distance from the top of the screen to the top of this window.
  ///
  /// ## Other resources
  ///
  /// * [The Screen interface specification](http://www.w3.org/TR/cssom-view/#screen)
  ///   from W3C.

  int? get screenTop => null;

  /// The distance from the left side of the screen to the mouse pointer.
  ///
  /// ## Other resources
  ///
  /// * [The Screen interface specification](http://www.w3.org/TR/cssom-view/#screen)
  ///   from W3C.

  int? get screenX => null;

  /// The distance from the top of the screen to the mouse pointer.
  ///
  /// ## Other resources
  ///
  /// * [The Screen interface specification](http://www.w3.org/TR/cssom-view/#screen)
  ///   from W3C.

  int? get screenY => null;

  /// This window's scroll bars.
  ///
  /// ## Other resources
  ///
  /// * [Browser interface
  ///   elements](https://html.spec.whatwg.org/multipage/browsers.html#browser-interface-elements)
  ///   from WHATWG.
  BarProp? get scrollbars => null;

  /// The distance this window has been scrolled horizontally.
  ///
  /// ## Other resources
  ///
  /// * [The Screen interface
  ///   specification](http://www.w3.org/TR/cssom-view/#screen) from W3C.
  /// * [scrollX](https://developer.mozilla.org/en-US/docs/Web/API/Window.scrollX)
  ///   from MDN.
  int get scrollX => document.documentElement!.scrollLeft;

  /// The distance this window has been scrolled vertically.
  ///
  /// ## Other resources
  ///
  /// * [The Screen interface
  ///   specification](http://www.w3.org/TR/cssom-view/#screen) from W3C.
  /// * [scrollY](https://developer.mozilla.org/en-US/docs/Web/API/Window.scrollY)
  ///   from MDN.
  int get scrollY => document.documentElement!.scrollTop;

  /// The current window.
  ///
  /// ## Other resources
  ///
  /// * [Window.self](https://developer.mozilla.org/en-US/docs/Web/API/Window.self)
  ///   from MDN.
  WindowBase? get self {
    throw UnimplementedError();
  }

  /// Access to speech synthesis in the browser.
  ///
  /// ## Other resources
  ///
  /// * [Web speech
  ///   specification](https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html#tts-section)
  ///   from W3C.

  SpeechSynthesis? get speechSynthesis => null;

  /// This window's status bar.
  ///
  /// ## Other resources
  ///
  /// * [Browser interface
  ///   elements](https://html.spec.whatwg.org/multipage/browsers.html#browser-interface-elements)
  ///   from WHATWG.

  BarProp? get statusbar => null;

  /// Access to CSS media queries.
  ///
  /// ## Other resources
  ///
  /// * [StyleMedia class
  ///   reference](https://developer.apple.com/library/safari/documentation/SafariDOMAdditions/Reference/StyleMedia/)
  ///   from Safari Developer Library.

  StyleMedia? get styleMedia => null;

  /// This window's tool bar.
  ///
  /// ## Other resources
  ///
  /// * [Browser interface
  ///   elements](https://html.spec.whatwg.org/multipage/browsers.html#browser-interface-elements)
  ///   from WHATWG.

  BarProp? get toolbar => null;

  @override
  WindowBase? get top => null;

  VisualViewport? get visualViewport => null;

  /// The current window.
  ///
  /// ## Other resources
  ///
  /// * [Window.window](https://developer.mozilla.org/en-US/docs/Web/API/Window.window)
  ///   from MDN.
  WindowBase? get window => null;

  /// Displays a modal alert to the user.
  ///
  /// ## Other resources
  ///
  /// * [User prompts](https://html.spec.whatwg.org/multipage/webappapis.html#user-prompts)
  ///   from WHATWG.
  void alert([String? message]) {
    throw UnimplementedError();
  }

  String atob(String atob) => throw UnimplementedError();

  String btoa(String btoa) => throw UnimplementedError();

  void cancelIdleCallback(int handle) {
    throw UnimplementedError();
  }

  @override
  void close() {
    throw UnimplementedError();
  }

  /// Displays a modal OK/Cancel prompt to the user.
  ///
  /// ## Other resources
  ///
  /// * [User prompts](https://html.spec.whatwg.org/multipage/webappapis.html#user-prompts)
  ///   from WHATWG.
  bool confirm([String? message]) {
    throw UnimplementedError();
  }

  Future fetch(/*RequestInfo*/ input, [Map? init]) {
    throw UnimplementedError();
  }

  /// Finds text in this window.
  ///
  /// ## Other resources
  ///
  /// * [Window.find](https://developer.mozilla.org/en-US/docs/Web/API/Window.find)
  ///   from MDN.
  bool find(String? string, bool? caseSensitive, bool? backwards, bool? wrap,
      bool? wholeWord, bool? searchInFrames, bool? showDialog) {
    throw UnimplementedError();
  }

  StylePropertyMapReadonly getComputedStyleMap(
      Element element, String? pseudoElement) {
    throw UnimplementedError();
  }

  @JSName('getMatchedCSSRules')

  /// Returns all CSS rules that apply to the element's pseudo-element.
  List<CssRule> getMatchedCssRules(Element? element, String? pseudoElement) {
    throw UnimplementedError();
  }

  /// Returns the currently selected text.
  ///
  /// ## Other resources
  ///
  /// * [Window.getSelection](https://developer.mozilla.org/en-US/docs/Web/API/Window.getSelection)
  ///   from MDN.
  Selection? getSelection() => internalSelection;

  /// Returns a list of media queries for the given query string.
  ///
  /// ## Other resources
  ///
  /// * [Testing media
  ///   queries](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Testing_media_queries)
  ///   from MDN.
  /// * [The MediaQueryList
  ///   specification](http://www.w3.org/TR/cssom-view/#the-mediaquerylist-interface) from W3C.
  MediaQueryList matchMedia(String query) {
    throw UnimplementedError();
  }

  /// Moves this window.
  ///
  /// x and y can be negative.
  ///
  /// ## Other resources
  ///
  /// * [Window.moveBy](https://developer.mozilla.org/en-US/docs/Web/API/Window.moveBy)
  ///   from MDN.
  /// * [Window.moveBy](http://dev.w3.org/csswg/cssom-view/#dom-window-moveby) from W3C.
  void moveBy(int x, int y) {}

  /// Moves this window to a specific position.
  ///
  /// x and y can be negative.
  ///
  /// ## Other resources
  ///
  /// * [Window.moveTo](https://developer.mozilla.org/en-US/docs/Web/API/Window.moveTo)
  ///   from MDN.
  /// * [Window.moveTo](http://dev.w3.org/csswg/cssom-view/#dom-window-moveto)
  ///   from W3C.
  void moveTo(Point p) {}

  /// Opens a new window.
  ///
  /// ## Other resources
  ///
  /// * [Window.open](https://developer.mozilla.org/en-US/docs/Web/API/Window.open)
  ///   from MDN.
  WindowBase? open(String url, String name, [String? options]) {
    return null;
  }

  @override
  void postMessage(/*any*/ message, String targetOrigin,
      [List<Object>? messagePorts]) {
    throw UnimplementedError();
  }

  /// Opens the print dialog for this window.
  ///
  /// ## Other resources
  ///
  /// * [Window.print](https://developer.mozilla.org/en-US/docs/Web/API/Window.print)
  ///   from MDN.
  void print() {}

  /// Called to draw an animation frame and then request the window to repaint
  /// after [callback] has finished (creating the animation).
  ///
  /// Use this method only if you need to later call [cancelAnimationFrame]. If
  /// not, the preferred Dart idiom is to set animation frames by calling
  /// [animationFrame], which returns a Future.
  ///
  /// Returns a non-zero valued integer to represent the request id for this
  /// request. This value only needs to be saved if you intend to call
  /// [cancelAnimationFrame] so you can specify the particular animation to
  /// cancel.
  ///
  /// Note: The supplied [callback] needs to call [requestAnimationFrame] again
  /// for the animation to continue.
  int requestAnimationFrame(FrameRequestCallback callback) {
    throw UnimplementedError();
  }

  /// Access a sandboxed file system of `size` bytes.
  ///
  /// If `persistent` is true, the application will request permission from the
  /// user to create lasting storage. This storage cannot be freed without the
  /// user's permission. Returns a [Future] whose value stores a reference to
  /// the sandboxed file system for use. Because the file system is sandboxed,
  /// applications cannot access file systems created in other web pages.
  Future<FileSystem> requestFileSystem(int size, {bool persistent = false}) {
    throw UnimplementedError();
  }

  int requestIdleCallback(IdleRequestCallback callback, [Map? options]) {
    Timer(const Duration(microseconds: 1), () {
      final idleDeadline =
          IdleDeadline._(DateTime.now().add(const Duration(microseconds: 10)));
      callback(idleDeadline);
    });
    return 0;
  }

  /// Resizes this window by an offset.
  ///
  /// ## Other resources
  ///
  /// * [Window.resizeBy](https://developer.mozilla.org/en-US/docs/Web/API/Window/resizeBy)
  ///   from MDN.
  void resizeBy(int x, int y) {}

  /// Resizes this window to a specific width and height.
  ///
  /// ## Other resources
  ///
  /// * [Window.resizeTo](https://developer.mozilla.org/en-US/docs/Web/API/Window/resizeTo)
  ///   from MDN.
  void resizeTo(int x, int y) {}

  @JSName('webkitResolveLocalFileSystemURL')

  /// Asynchronously retrieves a local filesystem entry.
  ///
  /// ## Other resources
  ///
  /// * [Obtaining access to file system entry
  ///   points](http://www.w3.org/TR/file-system-api/#obtaining-access-to-file-system-entry-points)
  /// from W3C.
  @SupportedBrowser(SupportedBrowser.CHROME)
  Future<Entry> resolveLocalFileSystemUrl(String url) {
    throw UnimplementedError();
  }

  /// Scrolls the page horizontally and vertically to a specific point.
  ///
  /// This method is identical to [scrollTo].
  ///
  /// ## Other resources
  ///
  /// * [Window.scroll](https://developer.mozilla.org/en-US/docs/Web/API/Window/scroll)
  ///   from MDN.
  void scroll([options_OR_x, y, Map? scrollOptions]) {}

  /// Scrolls the page horizontally and vertically by an offset.
  ///
  /// ## Other resources
  ///
  /// * [Window.scrollBy](https://developer.mozilla.org/en-US/docs/Web/API/Window/scrollBy)
  ///   from MDN.
  void scrollBy([options_OR_x, y, Map? scrollOptions]) {}

  /// Scrolls the page horizontally and vertically to a specific point.
  ///
  /// This method is identical to [scroll].
  ///
  /// ## Other resources
  ///
  /// * [Window.scrollTo](https://developer.mozilla.org/en-US/docs/Web/API/Window/scrollTo)
  ///   from MDN.
  void scrollTo([options_OR_x, y, Map? scrollOptions]) {}

  /// Stops the window from loading.
  ///
  /// ## Other resources
  ///
  /// * [The Window
  ///   object](http://www.w3.org/html/wg/drafts/html/master/browsers.html#the-window-object)
  ///   from W3C.
  void stop() {}
}

mixin WindowBase implements EventTarget {
  // Fields.

  /// Indicates whether this window has been closed.
  ///
  ///     print(window.closed); // 'false'
  ///     window.close();
  ///     print(window.closed); // 'true'
  ///
  /// MDN does not have compatibility info on this attribute, and therefore is
  /// marked nullable.
  bool? get closed;

  /// The current session history for this window.
  ///
  /// ## Other resources
  ///
  /// * [Session history and navigation
  ///   specification](https://html.spec.whatwg.org/multipage/browsers.html#history)
  ///   from WHATWG.
  HistoryBase get history;

  /// The current location of this window.
  ///
  ///     Location currentLocation = window.location;
  ///     print(currentLocation.href); // 'http://www.example.com:80/'
  LocationBase get location;

  /// A reference to the window that opened this one.
  ///
  ///     Window thisWindow = window;
  ///     WindowBase otherWindow = thisWindow.open('http://www.example.com/', 'foo');
  ///     print(otherWindow.opener == thisWindow); // 'true'
  WindowBase? get opener;

  /// A reference to the parent of this window.
  ///
  /// If this [WindowBase] has no parent, [parent] will return a reference to
  /// the [WindowBase] itself.
  ///
  ///     IFrameElement myIFrame = new IFrameElement();
  ///     window.document.body.elements.add(myIFrame);
  ///     print(myIframe.contentWindow.parent == window) // 'true'
  ///
  ///     print(window.parent == window) // 'true'
  WindowBase? get parent;

  /// A reference to the topmost window in the window hierarchy.
  ///
  /// If this [WindowBase] is the topmost [WindowBase], [top] will return a
  /// reference to the [WindowBase] itself.
  ///
  ///     // Add an IFrame to the current window.
  ///     IFrameElement myIFrame = new IFrameElement();
  ///     window.document.body.elements.add(myIFrame);
  ///
  ///     // Add an IFrame inside of the other IFrame.
  ///     IFrameElement innerIFrame = new IFrameElement();
  ///     myIFrame.elements.add(innerIFrame);
  ///
  ///     print(myIframe.contentWindow.top == window) // 'true'
  ///     print(innerIFrame.contentWindow.top == window) // 'true'
  ///
  ///     print(window.top == window) // 'true'
  WindowBase? get top;

  // Methods.
  /// Closes the window.
  ///
  /// This method should only succeed if the [WindowBase] object is
  /// **script-closeable** and the window calling [close] is allowed to navigate
  /// the window.
  ///
  /// A window is script-closeable if it is either a window
  /// that was opened by another window, or if it is a window with only one
  /// document in its history.
  ///
  /// A window might not be allowed to navigate, and therefore close, another
  /// window due to browser security features.
  ///
  ///     var other = window.open('http://www.example.com', 'foo');
  ///     // Closes other window, as it is script-closeable.
  ///     other.close();
  ///     print(other.closed); // 'true'
  ///
  ///     var newLocation = window.location
  ///         ..href = 'http://www.mysite.com';
  ///     window.location = newLocation;
  ///     // Does not close this window, as the history has changed.
  ///     window.close();
  ///     print(window.closed); // 'false'
  ///
  /// See also:
  ///
  /// * [Window close discussion](http://www.w3.org/TR/html5/browsers.html#dom-window-close) from the W3C
  void close();

  /// Sends a cross-origin message.
  ///
  /// ## Other resources
  ///
  /// * [window.postMessage](https://developer.mozilla.org/en-US/docs/Web/API/Window.postMessage)
  ///   from MDN.
  /// * [Cross-document messaging](https://html.spec.whatwg.org/multipage/comms.html#web-messaging)
  ///   from WHATWG.
  void postMessage(var message, String targetOrigin,
      [List<MessagePort>? messagePorts]);
}

abstract class WindowEventHandlers extends EventTarget {
  static const EventStreamProvider<Event> hashChangeEvent =
      EventStreamProvider<Event>('hashchange');

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

  static const EventStreamProvider<Event> offlineEvent =
      EventStreamProvider<Event>('offline');

  static const EventStreamProvider<Event> onlineEvent =
      EventStreamProvider<Event>('online');

  static const EventStreamProvider<PopStateEvent> popStateEvent =
      EventStreamProvider<PopStateEvent>('popstate');

  static const EventStreamProvider<StorageEvent> storageEvent =
      EventStreamProvider<StorageEvent>('storage');

  static const EventStreamProvider<Event> unloadEvent =
      EventStreamProvider<Event>('unload');

  factory WindowEventHandlers._() {
    throw UnsupportedError('Not supported');
  }

  Stream<Event> get onHashChange => hashChangeEvent.forTarget(this);

  Stream<MessageEvent> get onMessage => messageEvent.forTarget(this);

  Stream<Event> get onOffline => offlineEvent.forTarget(this);

  Stream<Event> get onOnline => onlineEvent.forTarget(this);

  Stream<PopStateEvent> get onPopState => popStateEvent.forTarget(this);

  Stream<StorageEvent> get onStorage => storageEvent.forTarget(this);

  Stream<Event> get onUnload => unloadEvent.forTarget(this);
}