nsMathMLTokenFrame.h

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/* 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/. */

#ifndef nsMathMLTokenFrame_h_

#define nsMathMLTokenFrame_h_

#include "nsMathMLContainerFrame.h"

namespace mozilla {

class PresShell;

}  // namespace mozilla

//

// Base class to handle token elements

//

class nsMathMLTokenFrame : public nsMathMLContainerFrame {

 public:

  NS_DECL_FRAMEARENA_HELPERS(nsMathMLTokenFrame)

  friend nsIFrame* NS_NewMathMLTokenFrame(mozilla::PresShell* aPresShell,

                                          ComputedStyle* aStyle);

  NS_IMETHOD

  TransmitAutomaticData() override {

    // The REC defines the following elements to be space-like:

    // * an mtext, mspace, maligngroup, or malignmark element;

    if (mContent->IsMathMLElement(nsGkAtoms::mtext)) {

      mPresentationData.flags += MathMLPresentationFlag::SpaceLike;

    return NS_OK;

  NS_IMETHOD

  InheritAutomaticData(nsIFrame* aParent) override;

  MathMLFrameType GetMathMLFrameType() override;

  void SetInitialChildList(ChildListID aListID,

                           nsFrameList&& aChildList) override;

  void AppendFrames(ChildListID aListID, nsFrameList&& aChildList) override;

  void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,

                    const nsLineList::iterator* aPrevFrameLine,

                    nsFrameList&& aChildList) override;

  void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,

              const ReflowInput& aReflowInput,

              nsReflowStatus& aStatus) override;

  void Place(DrawTarget* aDrawTarget, const PlaceFlags& aFlags,

             ReflowOutput& aDesiredSize) override;

 protected:

  explicit nsMathMLTokenFrame(ComputedStyle* aStyle,

                              nsPresContext* aPresContext,

                              ClassID aID = kClassID)

      : nsMathMLContainerFrame(aStyle, aPresContext, aID) {}

  virtual ~nsMathMLTokenFrame();

  void MarkTextFramesAsTokenMathML();

};

#endif /* nsMathMLTokentFrame_h___ */