Add m-esr52 at 52.6.0

1 files changed, 50 insertions, 0 deletions

diff --git a/dom/webidl/FontFace.webidl b/dom/webidl/FontFace.webidl
new file mode 100644
index 000000000..136658cc7
--- /dev/null
+++ b/dom/webidl/FontFace.webidl
@@ -0,0 +1,50 @@
+/* -*- 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 {
+  DOMString style = "normal";
+  DOMString weight = "normal";
+  DOMString stretch = "normal";
+  DOMString unicodeRange = "U+0-10FFFF";
+  DOMString variant = "normal";
+  DOMString featureSettings = "normal";
+  DOMString display = "auto";
+};
+
+enum FontFaceLoadStatus { "unloaded", "loading", "loaded", "error" };
+
+// Bug 1072107 is for exposing this in workers.
+// [Exposed=(Window,Worker)]
+[Constructor(DOMString family,
+             (DOMString or BinaryData) source,
+             optional FontFaceDescriptors descriptors),
+ Pref="layout.css.font-loading-api.enabled"]
+interface FontFace {
+  [SetterThrows] attribute DOMString family;
+  [SetterThrows] attribute DOMString style;
+  [SetterThrows] attribute DOMString weight;
+  [SetterThrows] attribute DOMString stretch;
+  [SetterThrows] attribute DOMString unicodeRange;
+  [SetterThrows] attribute DOMString variant;
+  [SetterThrows] attribute DOMString featureSettings;
+  [SetterThrows, Pref="layout.css.font-display.enabled"] attribute DOMString display;
+
+  readonly attribute FontFaceLoadStatus status;
+
+  [Throws]
+  Promise<FontFace> load();
+
+  [Throws]
+  readonly attribute Promise<FontFace> loaded;
+};