Add base of VTTCue DOM interface

1 files changed, 30 insertions, 0 deletions

diff --git a/components/script/dom/webidls/VTTCue.webidl b/components/script/dom/webidls/VTTCue.webidl
new file mode 100644
index 00000000000..073aa12f79b
--- /dev/null
+++ b/components/script/dom/webidls/VTTCue.webidl
@@ -0,0 +1,30 @@
+/* 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 https://mozilla.org/MPL/2.0/. */
+
+// https://w3c.github.io/webvtt/#the-vttcue-interface
+
+enum AutoKeyword { "auto"};
+typedef (double or AutoKeyword) LineAndPositionSetting;
+enum DirectionSetting { "" /* horizontal */, "rl", "lr" };
+enum LineAlignSetting { "start", "center", "end" };
+enum PositionAlignSetting { "line-left", "center", "line-right", "auto" };
+enum AlignSetting { "start", "center", "end", "left", "right" };
+
+[Pref="dom.webvtt.enabled", Exposed=Window]
+interface VTTCue : TextTrackCue {
+  constructor(double startTime, double endTime, DOMString text);
+  attribute VTTRegion? region;
+  attribute DirectionSetting vertical;
+  attribute boolean snapToLines;
+  attribute LineAndPositionSetting line;
+  attribute LineAlignSetting lineAlign;
+  [SetterThrows]
+  attribute LineAndPositionSetting position;
+  attribute PositionAlignSetting positionAlign;
+  [SetterThrows]
+  attribute double size;
+  attribute AlignSetting align;
+  attribute DOMString text;
+  DocumentFragment getCueAsHTML();
+};