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       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=2 et sw=2 tw=80: */
       3             : /* This Source Code is subject to the terms of the Mozilla Public License
       4             :  * version 2.0 (the "License"). You can obtain a copy of the License at
       5             :  * http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : /* rendering object for CSS "display: ruby" */
       8             : 
       9             : #ifndef nsRubyFrame_h___
      10             : #define nsRubyFrame_h___
      11             : 
      12             : #include "nsInlineFrame.h"
      13             : #include "RubyUtils.h"
      14             : 
      15             : /**
      16             :  * Factory function.
      17             :  * @return a newly allocated nsRubyFrame (infallible)
      18             :  */
      19             : nsContainerFrame* NS_NewRubyFrame(nsIPresShell* aPresShell,
      20             :                                   nsStyleContext* aContext);
      21             : 
      22           0 : class nsRubyFrame final : public nsInlineFrame
      23             : {
      24             : public:
      25           0 :   NS_DECL_FRAMEARENA_HELPERS(nsRubyFrame)
      26             :   NS_DECL_QUERYFRAME
      27             : 
      28             :   // nsIFrame overrides
      29             :   virtual bool IsFrameOfType(uint32_t aFlags) const override;
      30             :   virtual void AddInlineMinISize(gfxContext *aRenderingContext,
      31             :                                  InlineMinISizeData *aData) override;
      32             :   virtual void AddInlinePrefISize(gfxContext *aRenderingContext,
      33             :                                   InlinePrefISizeData *aData) override;
      34             :   virtual void Reflow(nsPresContext* aPresContext,
      35             :                       ReflowOutput& aDesiredSize,
      36             :                       const ReflowInput& aReflowInput,
      37             :                       nsReflowStatus& aStatus) override;
      38             : 
      39             : #ifdef DEBUG_FRAME_DUMP
      40             :   virtual nsresult GetFrameName(nsAString& aResult) const override;
      41             : #endif
      42             : 
      43           0 :   mozilla::RubyBlockLeadings GetBlockLeadings() const {
      44           0 :     return mLeadings;
      45             :   }
      46             : 
      47             : protected:
      48             :   friend nsContainerFrame* NS_NewRubyFrame(nsIPresShell* aPresShell,
      49             :                                            nsStyleContext* aContext);
      50           0 :   explicit nsRubyFrame(nsStyleContext* aContext)
      51           0 :     : nsInlineFrame(aContext, kClassID)
      52           0 :   {}
      53             : 
      54             :   void ReflowSegment(nsPresContext* aPresContext,
      55             :                      const ReflowInput& aReflowInput,
      56             :                      nsRubyBaseContainerFrame* aBaseContainer,
      57             :                      nsReflowStatus& aStatus);
      58             : 
      59             :   nsRubyBaseContainerFrame* PullOneSegment(const nsLineLayout* aLineLayout,
      60             :                                            ContinuationTraversingState& aState);
      61             : 
      62             :   // The leadings required to put the annotations. They are dummy-
      63             :   // initialized to 0, and get meaningful values at first reflow.
      64             :   mozilla::RubyBlockLeadings mLeadings;
      65             : };
      66             : 
      67             : #endif /* nsRubyFrame_h___ */