/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 nsMathMLmspaceFrame_h___

#define nsMathMLmspaceFrame_h___

#include "mozilla/Attributes.h"

#include "nsMathMLContainerFrame.h"

//

// <mspace> -- space

//

class nsMathMLmspaceFrame final : public nsMathMLContainerFrame

{

public:

  NS_DECL_FRAMEARENA_HELPERS(nsMathMLmspaceFrame)

  friend nsIFrame* NS_NewMathMLmspaceFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle);

  NS_IMETHOD

  TransmitAutomaticData() override {

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

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

    mPresentationData.flags |= NS_MATHML_SPACE_LIKE;

    return NS_OK;

  }

  virtual void

  Reflow(nsPresContext*          aPresContext,

         ReflowOutput&     aDesiredSize,

         const ReflowInput& aReflowInput,

         nsReflowStatus&          aStatus) override;

protected:

  explicit nsMathMLmspaceFrame(ComputedStyle* aStyle) :

    nsMathMLContainerFrame(aStyle, kClassID), mWidth(0), mHeight(0), mDepth(0) {}

  virtual ~nsMathMLmspaceFrame();

  virtual nsresult

  MeasureForWidth(DrawTarget* aDrawTarget,

                  ReflowOutput& aDesiredSize) override;

private:

  nscoord mWidth;

  nscoord mHeight;

  nscoord mDepth;

  // helper method to initialize our member data

  void

  ProcessAttributes(nsPresContext* aPresContext);

};

#endif /* nsMathMLmspaceFrame_h___ */