1 files changed, 43 insertions, 0 deletions
diff --git a/layout/xul/tree/nsTreeUtils.h b/layout/xul/tree/nsTreeUtils.h
new file mode 100644
index 0000000000..d0588f1273
--- /dev/null
+++ b/layout/xul/tree/nsTreeUtils.h
@@ -0,0 +1,43 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef nsTreeUtils_h__
+#define nsTreeUtils_h__
+
+#include "mozilla/AtomArray.h"
+#include "nsError.h"
+#include "nsString.h"
+#include "nsTreeStyleCache.h"
+
+class nsAtom;
+class nsIContent;
+namespace mozilla {
+namespace dom {
+class Element;
+}
+}  // namespace mozilla
+
+class nsTreeUtils {
+ public:
+  /**
+   * Parse a whitespace separated list of properties into an array
+   * of atoms.
+   */
+  static nsresult TokenizeProperties(const nsAString& aProperties,
+                                     mozilla::AtomArray& aPropertiesArray);
+
+  static nsIContent* GetImmediateChild(nsIContent* aContainer, nsAtom* aTag);
+
+  static nsIContent* GetDescendantChild(nsIContent* aContainer, nsAtom* aTag);
+
+  static nsresult UpdateSortIndicators(mozilla::dom::Element* aColumn,
+                                       const nsAString& aDirection);
+
+  static nsresult GetColumnIndex(mozilla::dom::Element* aColumn,
+                                 int32_t* aResult);
+};
+
+#endif  // nsTreeUtils_h__