FontFace.webidl - mozsearch

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/* -*- 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://dev.w3.org/csswg/css-font-loading/#fontface-interface

 * Copyright © 2014 W3C® (MIT, ERCIM, Keio, Beihang), All Rights Reserved. W3C

 * liability, trademark and document use rules apply.

*/

typedef (ArrayBuffer or ArrayBufferView) BinaryData;

dictionary FontFaceDescriptors {

  UTF8String style = "normal";

  UTF8String weight = "normal";

  UTF8String stretch = "normal";

  UTF8String unicodeRange = "U+0-10FFFF";

  UTF8String variant = "normal";

  UTF8String featureSettings = "normal";

  [Pref="layout.css.font-variations.enabled"] UTF8String variationSettings = "normal";

  UTF8String display = "auto";

  UTF8String ascentOverride = "normal";

  UTF8String descentOverride = "normal";

  UTF8String lineGapOverride = "normal";

  [Pref="layout.css.size-adjust.enabled"] UTF8String sizeAdjust = "100%";

};

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

[Exposed=(Window,Worker)]

interface FontFace {

  [Throws]

  constructor(UTF8String family,

              (UTF8String or BinaryData) source,

              optional FontFaceDescriptors descriptors = {});

  [SetterThrows] attribute UTF8String family;

  [SetterThrows] attribute UTF8String style;

  [SetterThrows] attribute UTF8String weight;

  [SetterThrows] attribute UTF8String stretch;

  [SetterThrows] attribute UTF8String unicodeRange;

  [SetterThrows] attribute UTF8String variant;

  [SetterThrows] attribute UTF8String featureSettings;

  [SetterThrows, Pref="layout.css.font-variations.enabled"] attribute UTF8String variationSettings;

  [SetterThrows] attribute UTF8String display;

  [SetterThrows] attribute UTF8String ascentOverride;

  [SetterThrows] attribute UTF8String descentOverride;

  [SetterThrows] attribute UTF8String lineGapOverride;

  [SetterThrows, Pref="layout.css.size-adjust.enabled"] attribute UTF8String sizeAdjust;

  readonly attribute FontFaceLoadStatus status;

  [Throws]

  Promise<FontFace> load();

  [Throws]

  readonly attribute Promise<FontFace> loaded;

};