forked from mirrors/gecko-dev
039592f4d8
This lifts a bunch of string conversions higher up the stack, but allows us to make the servo code use utf-8 unconditionally, and seemed faster in my benchmarking (see comment 0). It should also make a bunch of attribute setters faster too (like setting .cssText), now that we use UTF8String for them (we couldn't because we couldn't specify different string types for the getter and setters). Differential Revision: https://phabricator.services.mozilla.com/D99590
66 lines
2.4 KiB
Text
66 lines
2.4 KiB
Text
/* -*- 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/#FontFaceSet-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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// To implement FontFaceSet's iterator until we can use setlike.
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dictionary FontFaceSetIteratorResult
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{
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required any value;
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required boolean done;
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};
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// To implement FontFaceSet's iterator until we can use setlike.
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[NoInterfaceObject,
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Exposed=Window]
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interface FontFaceSetIterator {
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[Throws] FontFaceSetIteratorResult next();
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};
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callback FontFaceSetForEachCallback = void (FontFace value, FontFace key, FontFaceSet set);
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enum FontFaceSetLoadStatus { "loading", "loaded" };
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[Pref="layout.css.font-loading-api.enabled",
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Exposed=Window]
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interface FontFaceSet : EventTarget {
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// Bug 1072762 is for the FontFaceSet constructor.
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// constructor(sequence<FontFace> initialFaces);
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// Emulate setlike behavior until we can use that directly.
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readonly attribute unsigned long size;
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[Throws] void add(FontFace font);
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boolean has(FontFace font);
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boolean delete(FontFace font);
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void clear();
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[NewObject] FontFaceSetIterator entries();
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// Iterator keys();
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[NewObject, Alias=keys, Alias="@@iterator"] FontFaceSetIterator values();
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[Throws] void forEach(FontFaceSetForEachCallback cb, optional any thisArg);
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// -- events for when loading state changes
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attribute EventHandler onloading;
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attribute EventHandler onloadingdone;
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attribute EventHandler onloadingerror;
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// check and start loads if appropriate
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// and fulfill promise when all loads complete
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[NewObject] Promise<sequence<FontFace>> load(UTF8String font, optional DOMString text = " ");
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// return whether all fonts in the fontlist are loaded
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// (does not initiate load if not available)
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[Throws] boolean check(UTF8String font, optional DOMString text = " ");
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// async notification that font loading and layout operations are done
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[Throws] readonly attribute Promise<void> ready;
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// loading state, "loading" while one or more fonts loading, "loaded" otherwise
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readonly attribute FontFaceSetLoadStatus status;
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};
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