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64 lines
2.7 KiB
Plaintext
64 lines
2.7 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* The origin of this IDL file is
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* http://dev.w3.org/csswg/css-font-loading/#fontface-interface
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*
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* Copyright © 2014 W3C® (MIT, ERCIM, Keio, Beihang), All Rights Reserved. W3C
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* liability, trademark and document use rules apply.
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*/
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typedef (ArrayBuffer or ArrayBufferView) BinaryData;
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dictionary FontFaceDescriptors {
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UTF8String style = "normal";
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UTF8String weight = "normal";
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UTF8String stretch = "normal";
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UTF8String unicodeRange = "U+0-10FFFF";
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UTF8String variant = "normal";
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UTF8String featureSettings = "normal";
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[Pref="layout.css.font-variations.enabled"] UTF8String variationSettings = "normal";
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[Pref="layout.css.font-display.enabled"] UTF8String display = "auto";
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[Pref="layout.css.font-metrics-overrides.enabled"] UTF8String ascentOverride = "normal";
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[Pref="layout.css.font-metrics-overrides.enabled"] UTF8String descentOverride = "normal";
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[Pref="layout.css.font-metrics-overrides.enabled"] UTF8String lineGapOverride = "normal";
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[Pref="layout.css.size-adjust.enabled"] UTF8String sizeAdjust = "100%";
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};
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enum FontFaceLoadStatus { "unloaded", "loading", "loaded", "error" };
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// Bug 1072107 is for exposing this in workers.
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// [Exposed=(Window,Worker)]
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[Func="FontFaceSet::IsEnabled",
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Exposed=(Window,Worker)]
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interface FontFace {
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[Throws]
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constructor(UTF8String family,
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(UTF8String or BinaryData) source,
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optional FontFaceDescriptors descriptors = {});
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[SetterThrows] attribute UTF8String family;
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[SetterThrows] attribute UTF8String style;
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[SetterThrows] attribute UTF8String weight;
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[SetterThrows] attribute UTF8String stretch;
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[SetterThrows] attribute UTF8String unicodeRange;
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[SetterThrows] attribute UTF8String variant;
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[SetterThrows] attribute UTF8String featureSettings;
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[SetterThrows, Pref="layout.css.font-variations.enabled"] attribute UTF8String variationSettings;
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[SetterThrows, Pref="layout.css.font-display.enabled"] attribute UTF8String display;
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[SetterThrows, Pref="layout.css.font-metrics-overrides.enabled"] attribute UTF8String ascentOverride;
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[SetterThrows, Pref="layout.css.font-metrics-overrides.enabled"] attribute UTF8String descentOverride;
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[SetterThrows, Pref="layout.css.font-metrics-overrides.enabled"] attribute UTF8String lineGapOverride;
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[SetterThrows, Pref="layout.css.size-adjust.enabled"] attribute UTF8String sizeAdjust;
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readonly attribute FontFaceLoadStatus status;
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[Throws]
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Promise<FontFace> load();
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[Throws]
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readonly attribute Promise<FontFace> loaded;
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};
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