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 * modification, are permitted provided that the following conditions are
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 *
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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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 * contributors may be used to endorse or promote products derived from
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// https://drafts.csswg.org/css-font-loading/#fontface-interface

enum FontFaceLoadStatus {
    "unloaded",
    "loading",
    "loaded",
    "error"
};

// TODO(foolip): This interface should be [Exposed=Window,Worker].
[
    ActiveScriptWrappable,
    DependentLifetime,
    // FIXME: This should be (DOMString or BinaryData), where BinaryData is typedef of (ArrayBuffer or ArrayBufferView)
    Constructor(DOMString family, (DOMString or ArrayBuffer or ArrayBufferView) source, optional FontFaceDescriptors descriptors),
    ConstructorCallWith=ExecutionContext,
    MeasureAs=FontFaceConstructor
] interface FontFace {
    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString family;
    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString style;
    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString weight;
    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString stretch;
    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString unicodeRange;
    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString variant;
    [RaisesException=Setter, SetterCallWith=ExecutionContext] attribute DOMString featureSettings;
    [RaisesException=Setter, SetterCallWith=ExecutionContext, RuntimeEnabled=CSSFontDisplay] attribute DOMString display;

    readonly attribute FontFaceLoadStatus status;

    [CallWith=ScriptState] Promise<FontFace> load();
    [CallWith=ScriptState] readonly attribute Promise<FontFace> loaded;
};
