| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| // https://dev.w3.org/csswg/css-font-loading/#FontFaceSet-interface |
| |
| enum FontFaceSetLoadStatus { "loading", "loaded" }; |
| |
| // TODO(foolip): This interface should be [Exposed=Window,Worker] and should |
| // have a constructor, and thus not have [NoInterfaceObject]. |
| [ |
| DependentLifetime, |
| SetWrapperReferenceFrom=document, |
| NoInterfaceObject, |
| ] interface FontFaceSet : EventTarget { |
| setlike<FontFace>; |
| readonly attribute unsigned long size; |
| |
| // events for when loading state changes |
| attribute EventHandler onloading; |
| attribute EventHandler onloadingdone; |
| attribute EventHandler onloadingerror; |
| |
| // check and start loads if appropriate |
| // and fulfill promise when all loads complete |
| [CallWith=ScriptState] Promise<sequence<FontFace>> load(DOMString font, optional DOMString text = " "); |
| |
| // return whether all fonts in the fontlist are loaded |
| // (does not initiate load if not available) |
| [RaisesException] boolean check(DOMString font, optional DOMString text = " "); |
| |
| // async notification that font loading and layout operations are done |
| [CallWith=ScriptState] readonly attribute Promise<FontFaceSet> ready; |
| |
| // loading state, "loading" while one or more fonts loading, "loaded" otherwise |
| readonly attribute FontFaceSetLoadStatus status; |
| }; |