1 files changed, 67 insertions, 0 deletions
diff --git a/layout/generic/nsRubyFrame.h b/layout/generic/nsRubyFrame.h
new file mode 100644
index 0000000000..cf7b9b302e
--- /dev/null
+++ b/layout/generic/nsRubyFrame.h
@@ -0,0 +1,67 @@
+/* -*- 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/. */
+
+/* rendering object for CSS "display: ruby" */
+
+#ifndef nsRubyFrame_h___
+#define nsRubyFrame_h___
+
+#include "nsInlineFrame.h"
+#include "RubyUtils.h"
+
+namespace mozilla {
+class PresShell;
+}  // namespace mozilla
+
+/**
+ * Factory function.
+ * @return a newly allocated nsRubyFrame (infallible)
+ */
+nsContainerFrame* NS_NewRubyFrame(mozilla::PresShell* aPresShell,
+                                  mozilla::ComputedStyle* aStyle);
+
+class nsRubyFrame final : public nsInlineFrame {
+ public:
+  NS_DECL_FRAMEARENA_HELPERS(nsRubyFrame)
+  NS_DECL_QUERYFRAME
+
+  // nsIFrame overrides
+  virtual bool IsFrameOfType(uint32_t aFlags) const override;
+  virtual void AddInlineMinISize(gfxContext* aRenderingContext,
+                                 InlineMinISizeData* aData) override;
+  virtual void AddInlinePrefISize(gfxContext* aRenderingContext,
+                                  InlinePrefISizeData* aData) override;
+  virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+                      const ReflowInput& aReflowInput,
+                      nsReflowStatus& aStatus) override;
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+  mozilla::RubyBlockLeadings GetBlockLeadings() const { return mLeadings; }
+
+ protected:
+  friend nsContainerFrame* NS_NewRubyFrame(mozilla::PresShell* aPresShell,
+                                           ComputedStyle* aStyle);
+  explicit nsRubyFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
+      : nsInlineFrame(aStyle, aPresContext, kClassID) {}
+
+  void ReflowSegment(nsPresContext* aPresContext,
+                     const ReflowInput& aReflowInput, nscoord aBlockStartAscent,
+                     nscoord aBlockSize,
+                     nsRubyBaseContainerFrame* aBaseContainer,
+                     nsReflowStatus& aStatus);
+
+  nsRubyBaseContainerFrame* PullOneSegment(const nsLineLayout* aLineLayout,
+                                           ContinuationTraversingState& aState);
+
+  // The leadings required to put the annotations. They are dummy-
+  // initialized to 0, and get meaningful values at first reflow.
+  mozilla::RubyBlockLeadings mLeadings;
+};
+
+#endif /* nsRubyFrame_h___ */