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 namespace mozilla {
  14 class PresShell;
  15 }  // namespace mozilla
  16
  17 //
  18 // Base class to handle token elements
  19 //
  20
  21 class nsMathMLTokenFrame : public nsMathMLContainerFrame {
  22  public:
  23   NS_DECL_FRAMEARENA_HELPERS(nsMathMLTokenFrame)
  24
  25   friend nsIFrame* NS_NewMathMLTokenFrame(mozilla::PresShell* aPresShell,
  26                                           ComputedStyle* aStyle);
  27
  28   NS_IMETHOD
  29   TransmitAutomaticData() override {
  30     // The REC defines the following elements to be space-like:
  31     // * an mtext, mspace, maligngroup, or malignmark element;
  32     if (mContent->IsMathMLElement(nsGkAtoms::mtext_)) {
  33       mPresentationData.flags |= NS_MATHML_SPACE_LIKE;
  34     }
  35     return NS_OK;
  36   }
  37
  38   NS_IMETHOD
  39   InheritAutomaticData(nsIFrame* aParent) override;
  40
  41   virtual eMathMLFrameType GetMathMLFrameType() override;
  42
  43   void SetInitialChildList(ChildListID aListID,
  44                            nsFrameList&& aChildList) override;
  45
  46   void AppendFrames(ChildListID aListID, nsFrameList&& aChildList) override;
  47
  48   void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
  49                     const nsLineList::iterator* aPrevFrameLine,
  50                     nsFrameList&& aChildList) override;
  51
  52   virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
  53                       const ReflowInput& aReflowInput,
  54                       nsReflowStatus& aStatus) override;
  55
  56   virtual nsresult Place(DrawTarget* aDrawTarget, bool aPlaceOrigin,
  57                          ReflowOutput& aDesiredSize) override;
  58
  59  protected:
  60   explicit nsMathMLTokenFrame(ComputedStyle* aStyle,
  61                               nsPresContext* aPresContext,
  62                               ClassID aID = kClassID)
  63       : nsMathMLContainerFrame(aStyle, aPresContext, aID) {}
  64   virtual ~nsMathMLTokenFrame();
  65
  66   void MarkTextFramesAsTokenMathML();
  67 };
  68
  69 #endif /* nsMathMLTokentFrame_h___ */