1 files changed, 38 insertions, 0 deletions
diff --git a/dom/webidl/TreeColumn.webidl b/dom/webidl/TreeColumn.webidl
new file mode 100644
index 0000000000..6e0c0c4ec8
--- /dev/null
+++ b/dom/webidl/TreeColumn.webidl
@@ -0,0 +1,38 @@
+/* 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 TreeColumn {
+  readonly attribute Element element;
+
+  readonly attribute TreeColumns? columns;
+
+  [Throws]
+  readonly attribute long x;
+  [Throws]
+  readonly attribute long width;
+
+  readonly attribute DOMString id;
+  readonly attribute long index;
+
+  readonly attribute boolean primary;
+  readonly attribute boolean cycler;
+  readonly attribute boolean editable;
+
+  const short TYPE_TEXT                = 1;
+  const short TYPE_CHECKBOX            = 2;
+  readonly attribute short type;
+
+  TreeColumn? getNext();
+  TreeColumn? getPrevious();
+
+  /**
+   * Returns the previous displayed column, if any, accounting for
+   * the ordinals set on the columns.
+   */
+  readonly attribute TreeColumn? previousColumn;
+
+  [Throws]
+  void invalidate();
+};