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/* -*- 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 "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 |= NS_MATHML_SPACE_LIKE;
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,
int32_t aModType) final;
nscoord CalculateAttributeValue(nsAtom* aAtom, Attribute& aAttribute,
uint32_t aFlags, float aFontSizeInflation);
nsresult Place(DrawTarget* aDrawTarget, const PlaceFlags& aFlags,
ReflowOutput& aDesiredSize) final;
};
#endif /* nsMathMLmspaceFrame_h___ */
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