1 files changed, 22 insertions, 0 deletions
diff --git a/dom/webidl/PresentationAvailability.webidl b/dom/webidl/PresentationAvailability.webidl
new file mode 100644
index 000000000..f72b88565
--- /dev/null
+++ b/dom/webidl/PresentationAvailability.webidl
@@ -0,0 +1,22 @@
+/* -*- 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
+ * https://w3c.github.io/presentation-api/#interface-presentationavailability
+ */
+
+[Pref="dom.presentation.controller.enabled"]
+interface PresentationAvailability : EventTarget {
+  /*
+   * If there is at least one device discovered by UA, the value is |true|.
+   * Otherwise, its value should be |false|.
+   */
+  readonly attribute boolean value;
+
+  /*
+   * It is called when device availability changes.
+   */
+  attribute EventHandler onchange;
+};