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 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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enum FontFaceSetLoadStatus { "loading", "loaded" };

[
    NoInterfaceObject,
    EnabledAtRuntime=FontLoadEvents,
    ActiveDOMObject,
    GenerateIsReachable=document
] interface FontFaceSet : EventTarget {

    attribute EventHandler onloading;
    attribute EventHandler onloadingdone;
    attribute EventHandler onloadingerror;

    [RaisesException] sequence<FontFace> match(DOMString font, [Default=NullString] optional DOMString text);
    [RaisesException] boolean check(DOMString font, [Default=NullString] optional DOMString text);
    [EnabledAtRuntime=Promise, RaisesException] Promise load(DOMString font, [Default=NullString] optional DOMString text);
    [EnabledAtRuntime=Promise] Promise ready();

    readonly attribute FontFaceSetLoadStatus status;
};