nsRubyFrame.h - mozsearch

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/* -*- 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 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___ */