1 files changed, 22 insertions, 0 deletions
diff --git a/dom/webidl/TextClause.webidl b/dom/webidl/TextClause.webidl
new file mode 100644
index 0000000000..9ed1c71843
--- /dev/null
+++ b/dom/webidl/TextClause.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/.
+ */
+
+[ChromeOnly,
+ Exposed=Window]
+interface TextClause
+{
+  // The start offset of TextClause
+  readonly attribute long startOffset;
+
+  // The end offset of TextClause
+  readonly attribute long endOffset;
+
+  // If the TextClause is Caret or not
+  readonly attribute boolean isCaret;
+
+  // If the TextClause is TargetClause or not
+  readonly attribute boolean isTargetClause;
+};