1 files changed, 34 insertions, 0 deletions
diff --git a/layout/generic/nsRubyContentFrame.h b/layout/generic/nsRubyContentFrame.h
new file mode 100644
index 0000000000..788cac2d54
--- /dev/null
+++ b/layout/generic/nsRubyContentFrame.h
@@ -0,0 +1,34 @@
+/* -*- 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/. */
+
+/* base class for ruby rendering objects that directly contain content */
+
+#ifndef nsRubyContentFrame_h___
+#define nsRubyContentFrame_h___
+
+#include "nsInlineFrame.h"
+
+class nsRubyContentFrame : public nsInlineFrame {
+ public:
+  NS_DECL_ABSTRACT_FRAME(nsRubyContentFrame)
+
+  // nsIFrame overrides
+  virtual bool IsFrameOfType(uint32_t aFlags) const override;
+
+  // Indicates whether this is an "intra-level whitespace" frame, i.e.
+  // an anonymous frame that was created to contain non-droppable
+  // whitespaces directly inside a ruby level container. This impacts
+  // ruby pairing behavior.
+  // See http://dev.w3.org/csswg/css-ruby/#anon-gen-interpret-space
+  bool IsIntraLevelWhitespace() const;
+
+ protected:
+  nsRubyContentFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,
+                     ClassID aID)
+      : nsInlineFrame(aStyle, aPresContext, aID) {}
+};
+
+#endif /* nsRubyContentFrame_h___ */