layout/mathml/nsMathMLTokenFrame.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef nsMathMLTokenFrame_h___
   8 #define nsMathMLTokenFrame_h___
   9
  10 #include "mozilla/Attributes.h"
  11 #include "nsMathMLContainerFrame.h"
  12
  13 //
  14 // Base class to handle token elements
  15 //
  16
  17 class nsMathMLTokenFrame : public nsMathMLContainerFrame {
  18 public:
  19   NS_DECL_FRAMEARENA_HELPERS(nsMathMLTokenFrame)
  20
  21   friend nsIFrame* NS_NewMathMLTokenFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle);
  22
  23   NS_IMETHOD
  24   TransmitAutomaticData() override {
  25     // The REC defines the following elements to be space-like:
  26     // * an mtext, mspace, maligngroup, or malignmark element;
  27     if (mContent->IsMathMLElement(nsGkAtoms::mtext_)) {
  28       mPresentationData.flags |= NS_MATHML_SPACE_LIKE;
  29     }
  30     return NS_OK;
  31   }
  32
  33   NS_IMETHOD
  34   InheritAutomaticData(nsIFrame* aParent) override;
  35
  36   virtual eMathMLFrameType GetMathMLFrameType() override;
  37
  38   virtual void
  39   SetInitialChildList(ChildListID     aListID,
  40                       nsFrameList&    aChildList) override;
  41
  42   virtual void
  43   AppendFrames(ChildListID            aListID,
  44                nsFrameList&           aChildList) override;
  45
  46   virtual void
  47   InsertFrames(ChildListID            aListID,
  48                nsIFrame*              aPrevFrame,
  49                nsFrameList&           aChildList) override;
  50
  51   virtual void
  52   Reflow(nsPresContext*          aPresContext,
  53          ReflowOutput&     aDesiredSize,
  54          const ReflowInput& aReflowInput,
  55          nsReflowStatus&          aStatus) override;
  56
  57   virtual nsresult
  58   Place(DrawTarget*          aDrawTarget,
  59         bool                 aPlaceOrigin,
  60         ReflowOutput& aDesiredSize) override;
  61
  62 protected:
  63   explicit nsMathMLTokenFrame(ComputedStyle* aStyle, ClassID aID = kClassID)
  64     : nsMathMLContainerFrame(aStyle, aID) {}
  65   virtual ~nsMathMLTokenFrame();
  66
  67   void MarkTextFramesAsTokenMathML();
  68 };
  69
  70 #endif /* nsMathMLTokentFrame_h___ */