1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/mathml/nsMathMLmrowFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,52 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsMathMLmrowFrame_h___
1.10 +#define nsMathMLmrowFrame_h___
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "nsMathMLContainerFrame.h"
1.14 +
1.15 +//
1.16 +// <mrow> -- horizontally group any number of subexpressions
1.17 +//
1.18 +
1.19 +class nsMathMLmrowFrame : public nsMathMLContainerFrame {
1.20 +public:
1.21 + NS_DECL_FRAMEARENA_HELPERS
1.22 +
1.23 + friend nsIFrame* NS_NewMathMLmrowFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
1.24 +
1.25 + virtual nsresult
1.26 + AttributeChanged(int32_t aNameSpaceID,
1.27 + nsIAtom* aAttribute,
1.28 + int32_t aModType) MOZ_OVERRIDE;
1.29 +
1.30 + NS_IMETHOD
1.31 + InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE;
1.32 +
1.33 + NS_IMETHOD
1.34 + TransmitAutomaticData() MOZ_OVERRIDE {
1.35 + return TransmitAutomaticDataForMrowLikeElement();
1.36 + }
1.37 +
1.38 + virtual eMathMLFrameType
1.39 + GetMathMLFrameType() MOZ_OVERRIDE;
1.40 +
1.41 + bool
1.42 + IsMrowLike() MOZ_OVERRIDE {
1.43 + // <mrow> elements with a single child are treated identically to the case
1.44 + // where the child wasn't within an mrow, so we pretend the mrow isn't an
1.45 + // mrow in that situation.
1.46 + return mFrames.FirstChild() != mFrames.LastChild() ||
1.47 + !mFrames.FirstChild();
1.48 + }
1.49 +
1.50 +protected:
1.51 + nsMathMLmrowFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
1.52 + virtual ~nsMathMLmrowFrame();
1.53 +};
1.54 +
1.55 +#endif /* nsMathMLmrowFrame_h___ */
