DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (4f4487cc2d30)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * The origin of this IDL file is:
 * http://www.whatwg.org/specs/web-apps/current-work/
 * https://dvcs.w3.org/hg/editing/raw-file/tip/editing.html
 * https://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html
 * http://dev.w3.org/csswg/cssom/
 * http://dev.w3.org/csswg/cssom-view/
 * https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/RequestAnimationFrame/Overview.html
 * https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.html
 * https://dvcs.w3.org/hg/webcrypto-api/raw-file/tip/spec/Overview.html
 * http://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html
 * https://w3c.github.io/webappsec-secure-contexts/#monkey-patching-global-object
 * https://w3c.github.io/requestidlecallback/
 * https://webaudio.github.io/web-audio-api/#widl-Window-audioWorklet
 * https://drafts.css-houdini.org/css-paint-api-1/#dom-window-paintworklet
 */

interface ApplicationCache;
interface IID;
interface nsIBrowserDOMWindow;
interface nsIMessageBroadcaster;
interface nsIDOMCrypto;
interface XULControllers;

// http://www.whatwg.org/specs/web-apps/current-work/
[PrimaryGlobal, LegacyUnenumerableNamedProperties, NeedResolve]
/*sealed*/ interface Window : EventTarget {
  // the current browsing context
  [Unforgeable, Constant, StoreInSlot,
   CrossOriginReadable] readonly attribute Window window;
  [Replaceable, Constant, StoreInSlot,
   CrossOriginReadable] readonly attribute Window self;
  [Unforgeable, StoreInSlot, Pure] readonly attribute Document? document;
  [Throws] attribute DOMString name;
  [PutForwards=href, Unforgeable, BinaryName="getLocation",
   CrossOriginReadable, CrossOriginWritable] readonly attribute Location location;
  [Throws] readonly attribute History history;
  [Func="CustomElementRegistry::IsCustomElementEnabled"]
  readonly attribute CustomElementRegistry customElements;
  [Replaceable, Throws] readonly attribute BarProp locationbar;
  [Replaceable, Throws] readonly attribute BarProp menubar;
  [Replaceable, Throws] readonly attribute BarProp personalbar;
  [Replaceable, Throws] readonly attribute BarProp scrollbars;
  [Replaceable, Throws] readonly attribute BarProp statusbar;
  [Replaceable, Throws] readonly attribute BarProp toolbar;
  [Throws] attribute DOMString status;
  [Throws, CrossOriginCallable, UnsafeInPrerendering] void close();
  [Throws, CrossOriginReadable] readonly attribute boolean closed;
  [Throws] void stop();
  [Throws, CrossOriginCallable, UnsafeInPrerendering] void focus();
  [Throws, CrossOriginCallable] void blur();

  // other browsing contexts
  [Replaceable, Throws, CrossOriginReadable] readonly attribute WindowProxy frames;
  [Replaceable, CrossOriginReadable] readonly attribute unsigned long length;
  //[Unforgeable, Throws, CrossOriginReadable] readonly attribute WindowProxy top;
  [Unforgeable, Throws, CrossOriginReadable] readonly attribute WindowProxy? top;
  [Throws, CrossOriginReadable] attribute any opener;
  //[Throws] readonly attribute WindowProxy parent;
  [Replaceable, Throws, CrossOriginReadable] readonly attribute WindowProxy? parent;
  [Throws, NeedsSubjectPrincipal] readonly attribute Element? frameElement;
  //[Throws] WindowProxy? open(optional USVString url = "about:blank", optional DOMString target = "_blank", [TreatNullAs=EmptyString] optional DOMString features = "");
  [Throws, UnsafeInPrerendering] WindowProxy? open(optional DOMString url = "", optional DOMString target = "", [TreatNullAs=EmptyString] optional DOMString features = "");
  getter object (DOMString name);

  // the user agent
  readonly attribute Navigator navigator;
#ifdef HAVE_SIDEBAR
  [Replaceable, Throws] readonly attribute External external;
#endif
  [Throws, Pref="browser.cache.offline.enable"] readonly attribute ApplicationCache applicationCache;

  // user prompts
  [Throws, UnsafeInPrerendering, NeedsSubjectPrincipal] void alert();
  [Throws, UnsafeInPrerendering, NeedsSubjectPrincipal] void alert(DOMString message);
  [Throws, UnsafeInPrerendering, NeedsSubjectPrincipal] boolean confirm(optional DOMString message = "");
  [Throws, UnsafeInPrerendering, NeedsSubjectPrincipal] DOMString? prompt(optional DOMString message = "", optional DOMString default = "");
  [Throws, UnsafeInPrerendering] void print();

  [Throws, CrossOriginCallable, NeedsSubjectPrincipal]
  void postMessage(any message, DOMString targetOrigin, optional sequence<object> transfer = []);

  // also has obsolete members
};
Window implements GlobalEventHandlers;
Window implements WindowEventHandlers;

// https://www.w3.org/TR/appmanifest/#onappinstalled-attribute
partial interface Window {
  [Pref="dom.manifest.onappinstalled"]
  attribute EventHandler onappinstalled;
};

// http://www.whatwg.org/specs/web-apps/current-work/
[NoInterfaceObject]
interface WindowSessionStorage {
  //[Throws] readonly attribute Storage sessionStorage;
  [Throws] readonly attribute Storage? sessionStorage;
};
Window implements WindowSessionStorage;

// http://www.whatwg.org/specs/web-apps/current-work/
[NoInterfaceObject]
interface WindowLocalStorage {
  [Throws] readonly attribute Storage? localStorage;
};
Window implements WindowLocalStorage;

// http://www.whatwg.org/specs/web-apps/current-work/
partial interface Window {
  void captureEvents();
  void releaseEvents();
};

// https://dvcs.w3.org/hg/editing/raw-file/tip/editing.html
partial interface Window {
  //[Throws] Selection getSelection();
  [Throws] Selection? getSelection();
};

// http://dev.w3.org/csswg/cssom/
partial interface Window {
  //[NewObject, Throws] CSSStyleDeclaration getComputedStyle(Element elt, optional DOMString pseudoElt = "");
  [NewObject, Throws] CSSStyleDeclaration? getComputedStyle(Element elt, optional DOMString pseudoElt = "");
};

// http://dev.w3.org/csswg/cssom-view/
enum ScrollBehavior { "auto", "instant", "smooth" };

dictionary ScrollOptions {
  ScrollBehavior behavior = "auto";
};

dictionary ScrollToOptions : ScrollOptions {
  unrestricted double left;
  unrestricted double top;
};

partial interface Window {
  //[Throws,NewObject] MediaQueryList matchMedia(DOMString query);
  [Throws,NewObject] MediaQueryList? matchMedia(DOMString query);
  // Per spec, screen is SameObject, but we don't actually guarantee that given
  // nsGlobalWindow::Cleanup.  :(
  //[SameObject, Replaceable, Throws] readonly attribute Screen screen;
  [Replaceable, Throws] readonly attribute Screen screen;

  // browsing context
  //[Throws] void moveTo(double x, double y);
  //[Throws] void moveBy(double x, double y);
  //[Throws] void resizeTo(double x, double y);
  //[Throws] void resizeBy(double x, double y);
  [Throws, UnsafeInPrerendering, NeedsCallerType] void moveTo(long x, long y);
  [Throws, UnsafeInPrerendering, NeedsCallerType] void moveBy(long x, long y);
  [Throws, UnsafeInPrerendering, NeedsCallerType] void resizeTo(long x, long y);
  [Throws, UnsafeInPrerendering, NeedsCallerType] void resizeBy(long x, long y);

  // viewport
  // These are writable because we allow chrome to write them.  And they need
  // to use 'any' as the type, because non-chrome writing them needs to act
  // like a [Replaceable] attribute would, which needs the original JS value.
  //[Replaceable, Throws] readonly attribute double innerWidth;
  //[Replaceable, Throws] readonly attribute double innerHeight;
  [Throws, NeedsCallerType] attribute any innerWidth;
  [Throws, NeedsCallerType] attribute any innerHeight;

  // viewport scrolling
  void scroll(unrestricted double x, unrestricted double y);
  void scroll(optional ScrollToOptions options);
  void scrollTo(unrestricted double x, unrestricted double y);
  void scrollTo(optional ScrollToOptions options);
  void scrollBy(unrestricted double x, unrestricted double y);
  void scrollBy(optional ScrollToOptions options);
  // mozScrollSnap is used by chrome to perform scroll snapping after the
  // user performs actions that may affect scroll position
  // mozScrollSnap is deprecated, to be replaced by a web accessible API, such
  // as an extension to the ScrollOptions dictionary.  See bug 1137937.
  [ChromeOnly] void mozScrollSnap();
  // The four properties below are double per spec at the moment, but whether
  // that will continue is unclear.
  [Replaceable, Throws] readonly attribute double scrollX;
  [Replaceable, Throws] readonly attribute double pageXOffset;
  [Replaceable, Throws] readonly attribute double scrollY;
  [Replaceable, Throws] readonly attribute double pageYOffset;

  // client
  // These are writable because we allow chrome to write them.  And they need
  // to use 'any' as the type, because non-chrome writing them needs to act
  // like a [Replaceable] attribute would, which needs the original JS value.
  //[Replaceable, Throws] readonly attribute double screenX;
  //[Replaceable, Throws] readonly attribute double screenY;
  //[Replaceable, Throws] readonly attribute double outerWidth;
  //[Replaceable, Throws] readonly attribute double outerHeight;
  [Throws, NeedsCallerType] attribute any screenX;
  [Throws, NeedsCallerType] attribute any screenY;
  [Throws, NeedsCallerType] attribute any outerWidth;
  [Throws, NeedsCallerType] attribute any outerHeight;
};

// https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/RequestAnimationFrame/Overview.html
partial interface Window {
  [Throws] long requestAnimationFrame(FrameRequestCallback callback);
  [Throws] void cancelAnimationFrame(long handle);
};
callback FrameRequestCallback = void (DOMHighResTimeStamp time);

// https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.html
partial interface Window {
  [Replaceable, Pure, StoreInSlot] readonly attribute Performance? performance;
};

// https://dvcs.w3.org/hg/webcrypto-api/raw-file/tip/spec/Overview.html
Window implements GlobalCrypto;

// https://fidoalliance.org/specifications/download/
Window implements GlobalU2F;

#ifdef MOZ_WEBSPEECH
// http://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html
[NoInterfaceObject]
interface SpeechSynthesisGetter {
  [Throws, Pref="media.webspeech.synth.enabled"] readonly attribute SpeechSynthesis speechSynthesis;
};

Window implements SpeechSynthesisGetter;
#endif

// Mozilla-specific stuff
partial interface Window {
  //[NewObject, Throws] CSSStyleDeclaration getDefaultComputedStyle(Element elt, optional DOMString pseudoElt = "");
  [NewObject, Throws] CSSStyleDeclaration? getDefaultComputedStyle(Element elt, optional DOMString pseudoElt = "");

  // Mozilla extensions
  /**
   * Method for scrolling this window by a number of lines.
   */
  void                      scrollByLines(long numLines, optional ScrollOptions options);

  /**
   * Method for scrolling this window by a number of pages.
   */
  void                      scrollByPages(long numPages, optional ScrollOptions options);

  /**
   * Method for sizing this window to the content in the window.
   */
  [Throws, UnsafeInPrerendering, NeedsCallerType] void sizeToContent();

  // XXX Shouldn't this be in nsIDOMChromeWindow?
  [ChromeOnly, Replaceable, Throws] readonly attribute XULControllers controllers;

  [ChromeOnly, Throws] readonly attribute Element? realFrameElement;

  [Throws, NeedsCallerType]
  readonly attribute float mozInnerScreenX;
  [Throws, NeedsCallerType]
  readonly attribute float mozInnerScreenY;
  [Replaceable, Throws, NeedsCallerType]
  readonly attribute float devicePixelRatio;

  /* The maximum offset that the window can be scrolled to
     (i.e., the document width/height minus the scrollport width/height) */
  [ChromeOnly, Throws]  readonly attribute long   scrollMinX;
  [ChromeOnly, Throws]  readonly attribute long   scrollMinY;
  [Replaceable, Throws] readonly attribute long   scrollMaxX;
  [Replaceable, Throws] readonly attribute long   scrollMaxY;

  [Throws, UnsafeInPrerendering] attribute boolean fullScreen;

  [Throws, ChromeOnly, UnsafeInPrerendering] void back();
  [Throws, ChromeOnly, UnsafeInPrerendering] void forward();
  [Throws, ChromeOnly, UnsafeInPrerendering, NeedsSubjectPrincipal] void home();

  // XXX Should this be in nsIDOMChromeWindow?
  void                      updateCommands(DOMString action,
                                           optional Selection? sel = null,
                                           optional short reason = 0);

  /* Find in page.
   * @param str: the search pattern
   * @param caseSensitive: is the search caseSensitive
   * @param backwards: should we search backwards
   * @param wrapAround: should we wrap the search
   * @param wholeWord: should we search only for whole words
   * @param searchInFrames: should we search through all frames
   * @param showDialog: should we show the Find dialog
   */
  [Throws, UnsafeInPrerendering] boolean    find(optional DOMString str = "",
                                                 optional boolean caseSensitive = false,
                                                 optional boolean backwards = false,
                                                 optional boolean wrapAround = false,
                                                 optional boolean wholeWord = false,
                                                 optional boolean searchInFrames = false,
                                                 optional boolean showDialog = false);

  /**
   * Returns the number of times this document for this window has
   * been painted to the screen.
   */
  [Throws] readonly attribute unsigned long long mozPaintCount;

  /**
   * This property exists because static attributes don't yet work for
   * JS-implemented WebIDL (see bugs 1058606 and 863952). With this hack, we
   * can use `MozSelfSupport.something(...)`, which will continue to work
   * after we ditch this property and switch to static attributes. See
   */
  [ChromeOnly, Throws] readonly attribute MozSelfSupport MozSelfSupport;

           attribute EventHandler ondevicemotion;
           attribute EventHandler ondeviceorientation;
           attribute EventHandler onabsolutedeviceorientation;
           attribute EventHandler ondeviceproximity;
           attribute EventHandler onuserproximity;
           attribute EventHandler ondevicelight;

  void                      dump(DOMString str);

  /**
   * This method is here for backwards compatibility with 4.x only,
   * its implementation is a no-op
   */
  void                      setResizable(boolean resizable);

  /**
   * This is the scriptable version of
   * nsIDOMWindow::openDialog() that takes 3 optional
   * arguments, plus any additional arguments are passed on as
   * arguments on the dialog's window object (window.arguments).
   */
  [Throws, ChromeOnly, UnsafeInPrerendering] WindowProxy? openDialog(optional DOMString url = "",
                                                                   optional DOMString name = "",
                                                                   optional DOMString options = "",
                                                                   any... extraArguments);

  [Replaceable, Throws, NeedsCallerType] readonly attribute object? content;

  [ChromeOnly, Throws, NeedsCallerType] readonly attribute object? __content;

  [Throws, ChromeOnly] any getInterface(IID iid);

  /**
   * Same as nsIDOMWindow.windowRoot, useful for event listener targeting.
   */
  [ChromeOnly, Throws]
  readonly attribute WindowRoot? windowRoot;
};

Window implements TouchEventHandlers;

Window implements OnErrorEventHandlerForWindow;

#if defined(MOZ_WIDGET_ANDROID)
// https://compat.spec.whatwg.org/#windoworientation-interface
partial interface Window {
  [NeedsCallerType]
  readonly attribute short orientation;
           attribute EventHandler onorientationchange;
};
#endif

#ifdef HAVE_SIDEBAR
// Mozilla extension
partial interface Window {
  [Replaceable, Throws, UseCounter]
  readonly attribute (External or WindowProxy) sidebar;
};
#endif

[Func="IsChromeOrXBL"]
interface ChromeWindow {
  [Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  const unsigned short STATE_MAXIMIZED = 1;
  [Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  const unsigned short STATE_MINIMIZED = 2;
  [Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  const unsigned short STATE_NORMAL = 3;
  [Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  const unsigned short STATE_FULLSCREEN = 4;

  [Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  readonly attribute unsigned short windowState;

  [Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  readonly attribute boolean isFullyOccluded;

  /**
   * browserDOMWindow provides access to yet another layer of
   * utility functions implemented by chrome script. It will be null
   * for DOMWindows not corresponding to browsers.
   */
  [Throws, Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
           attribute nsIBrowserDOMWindow? browserDOMWindow;

  [Throws, Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  void                      getAttention();

  [Throws, Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  void                      getAttentionWithCycleCount(long aCycleCount);

  [Throws, Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  void                      setCursor(DOMString cursor);

  [Func="nsGlobalWindow::IsPrivilegedChromeWindow", UnsafeInPrerendering]
  void                      maximize();
  [Func="nsGlobalWindow::IsPrivilegedChromeWindow", UnsafeInPrerendering]
  void                      minimize();
  [Func="nsGlobalWindow::IsPrivilegedChromeWindow", UnsafeInPrerendering]
  void                      restore();

  /**
   * Notify a default button is loaded on a dialog or a wizard.
   * defaultButton is the default button.
   */
  [Throws, Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  void notifyDefaultButtonLoaded(Element defaultButton);

  [Throws, Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  readonly attribute nsIMessageBroadcaster messageManager;

  /**
   * Returns the message manager identified by the given group name that
   * manages all frame loaders belonging to that group.
   */
  [Throws, Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  nsIMessageBroadcaster getGroupMessageManager(DOMString aGroup);

  /**
   * On some operating systems, we must allow the window manager to
   * handle window dragging. This function tells the window manager to
   * start dragging the window. This function will fail unless called
   * while the left mouse button is held down, callers must check this.
   *
   * The optional panel argument should be set when moving a panel.
   *
   * Throws NS_ERROR_NOT_IMPLEMENTED if the OS doesn't support this.
   */
  [Throws, Func="nsGlobalWindow::IsPrivilegedChromeWindow"]
  void beginWindowMove(Event mouseDownEvent, optional Element? panel = null);
};

partial interface Window {
  [Pref="dom.vr.enabled"]
  attribute EventHandler onvrdisplayconnect;
  [Pref="dom.vr.enabled"]
  attribute EventHandler onvrdisplaydisconnect;
  [Pref="dom.vr.enabled"]
  attribute EventHandler onvrdisplayactivate;
  [Pref="dom.vr.enabled"]
  attribute EventHandler onvrdisplaydeactivate;
  [Pref="dom.vr.enabled"]
  attribute EventHandler onvrdisplaypresentchange;
};

// https://webaudio.github.io/web-audio-api/#widl-Window-audioWorklet
partial interface Window {
  [Pref="dom.audioWorklet.enabled", Throws]
  readonly attribute Worklet audioWorklet;
};

// https://drafts.css-houdini.org/css-paint-api-1/#dom-window-paintworklet
partial interface Window {
    [Pref="dom.paintWorklet.enabled", Throws]
    readonly attribute Worklet paintWorklet;
};

Window implements ChromeWindow;
Window implements WindowOrWorkerGlobalScope;

partial interface Window {
  [Throws, Func="nsGlobalWindow::IsRequestIdleCallbackEnabled"]
  unsigned long requestIdleCallback(IdleRequestCallback callback,
                                    optional IdleRequestOptions options);
  [Func="nsGlobalWindow::IsRequestIdleCallbackEnabled"]
  void          cancelIdleCallback(unsigned long handle);
};

dictionary IdleRequestOptions {
  unsigned long timeout;
};

callback IdleRequestCallback = void (IdleDeadline deadline);

/**
 * Similar to |isSecureContext|, but doesn't pay attention to whether the
 * window's opener (if any) is a secure context or not.
 *
 * WARNING: Do not use this unless you are familiar with the issues that
 * taking opener state into account is designed to address (or else you may
 * introduce security issues).  If in doubt, use |isSecureContext|.  In
 * particular do not use this to gate access to JavaScript APIs.
 */
partial interface Window {
  [ChromeOnly] readonly attribute boolean isSecureContextIfOpenerIgnored;
};

partial interface Window {
  /**
   * Returns a list of locales that the internationalization components
   * should be localized to.
   *
   * The function name refers to Regional Preferences which can be either
   * fetched from the internal internationalization database (CLDR), or
   * from the host environment.
   *
   * The result is a sorted list of valid locale IDs and it should be
   * used for all APIs that accept list of locales, like ECMA402 and L10n APIs.
   *
   * This API always returns at least one locale.
   *
   * Example: ["en-US", "de", "pl", "sr-Cyrl", "zh-Hans-HK"]
   */
  [Func="IsChromeOrXBL"]
  sequence<DOMString> getRegionalPrefsLocales();

#ifdef ENABLE_INTL_API
  /**
   * Getter funcion for IntlUtils, which provides helper functions for
   * localization.
   */
  [Throws, Func="IsChromeOrXBL"]
  readonly attribute IntlUtils intlUtils;
#endif
};