layout/generic/nsRubyFrame.h

   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 "nsContainerFrame.h"
  13
  14 /**
  15  * Factory function.
  16  * @return a newly allocated nsRubyFrame (infallible)
  17  */
  18 nsContainerFrame* NS_NewRubyFrame(nsIPresShell* aPresShell,
  19                                   nsStyleContext* aContext);
  20
  21 class nsRubyFrame MOZ_FINAL : public nsContainerFrame
  22 {
  23 public:
  24   NS_DECL_FRAMEARENA_HELPERS
  25   NS_DECL_QUERYFRAME_TARGET(nsRubyFrame)
  26   NS_DECL_QUERYFRAME
  27
  28   // nsIFrame overrides
  29   virtual nsIAtom* GetType() const MOZ_OVERRIDE;
  30   virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE;
  31   virtual void AddInlineMinISize(nsRenderingContext *aRenderingContext,
  32                                  InlineMinISizeData *aData) MOZ_OVERRIDE;
  33   virtual void AddInlinePrefISize(nsRenderingContext *aRenderingContext,
  34                                   InlinePrefISizeData *aData) MOZ_OVERRIDE;
  35   virtual void Reflow(nsPresContext* aPresContext,
  36                       nsHTMLReflowMetrics& aDesiredSize,
  37                       const nsHTMLReflowState& aReflowState,
  38                       nsReflowStatus& aStatus) MOZ_OVERRIDE;
  39   virtual nscoord GetLogicalBaseline(mozilla::WritingMode aWritingMode)
  40     const MOZ_OVERRIDE;
  41   virtual bool CanContinueTextRun() const MOZ_OVERRIDE;
  42
  43 #ifdef DEBUG_FRAME_DUMP
  44   virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
  45 #endif
  46
  47 protected:
  48   friend nsContainerFrame* NS_NewRubyFrame(nsIPresShell* aPresShell,
  49                                            nsStyleContext* aContext);
  50   explicit nsRubyFrame(nsStyleContext* aContext) : nsContainerFrame(aContext) {}
  51   void CalculateColSizes(nsRenderingContext* aRenderingContext,
  52                          nsTArray<nscoord>& aColSizes);
  53   nscoord mBaseline;
  54 };
  55
  56 #endif /* nsRubyFrame_h___ */