/* 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 "nsCSSValue.h"
#include "nsMathMLContainerFrame.h"

namespace mozilla {
class PresShell;
}  // namespace mozilla

//
// <mspace> -- space
//

class nsMathMLmspaceFrame final : public nsMathMLContainerFrame {
 public:
  NS_DECL_FRAMEARENA_HELPERS(nsMathMLmspaceFrame)

  friend nsIFrame* NS_NewMathMLmspaceFrame(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;
    mPresentationData.flags += MathMLPresentationFlag::SpaceLike;
    return NS_OK;
  }

 protected:
  explicit nsMathMLmspaceFrame(ComputedStyle* aStyle,
                               nsPresContext* aPresContext)
      : nsMathMLContainerFrame(aStyle, aPresContext, kClassID) {}
  virtual ~nsMathMLmspaceFrame();

 private:
  struct Attribute {
    nsCSSValue mValue;
    enum class ParsingState : uint8_t {
      Valid,
      Invalid,
      Dirty,
    };
    ParsingState mState = ParsingState::Dirty;
  };
  Attribute mWidth;
  Attribute mHeight;
  Attribute mDepth;

  nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
                            AttrModType aModType) final;
  nscoord CalculateAttributeValue(
      nsAtom* aAtom, Attribute& aAttribute, float aFontSizeInflation,
      mozilla::dom::MathMLElement::ParseFlags aFlags =
          mozilla::dom::MathMLElement::ParseFlags());
  void Place(DrawTarget* aDrawTarget, const PlaceFlags& aFlags,
             ReflowOutput& aDesiredSize) final;
};

#endif /* nsMathMLmspaceFrame_h_ */