1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/mathml/nsMathMLmsqrtFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,68 @@
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 nsMathMLmsqrtFrame_h___
1.10 +#define nsMathMLmsqrtFrame_h___
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "nsMathMLmencloseFrame.h"
1.14 +
1.15 +//
1.16 +// <msqrt> -- form a radical
1.17 +//
1.18 +
1.19 +/*
1.20 +The MathML REC describes:
1.21 +
1.22 +The <msqrt> element is used to display square roots.
1.23 +The syntax for <msqrt> is:
1.24 + <msqrt> base </msqrt>
1.25 +
1.26 +Attributes of <msqrt> and <mroot>:
1.27 +
1.28 +None (except the attributes allowed for all MathML elements, listed in Section
1.29 +2.3.4).
1.30 +
1.31 +The <mroot> element increments scriptlevel by 2, and sets displaystyle to
1.32 +"false", within index, but leaves both attributes unchanged within base. The
1.33 +<msqrt> element leaves both attributes unchanged within all its arguments.
1.34 +These attributes are inherited by every element from its rendering environment,
1.35 +but can be set explicitly only on <mstyle>. (See Section 3.3.4.)
1.36 +*/
1.37 +
1.38 +class nsMathMLmsqrtFrame : public nsMathMLmencloseFrame {
1.39 +public:
1.40 + NS_DECL_FRAMEARENA_HELPERS
1.41 +
1.42 + friend nsIFrame* NS_NewMathMLmsqrtFrame(nsIPresShell* aPresShell,
1.43 + nsStyleContext* aContext);
1.44 +
1.45 + virtual void
1.46 + Init(nsIContent* aContent,
1.47 + nsIFrame* aParent,
1.48 + nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
1.49 +
1.50 + NS_IMETHOD
1.51 + InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE;
1.52 +
1.53 + virtual nsresult
1.54 + AttributeChanged(int32_t aNameSpaceID,
1.55 + nsIAtom* aAttribute,
1.56 + int32_t aModType) MOZ_OVERRIDE;
1.57 +
1.58 + virtual bool
1.59 + IsMrowLike() MOZ_OVERRIDE
1.60 + {
1.61 + return mFrames.FirstChild() != mFrames.LastChild() ||
1.62 + !mFrames.FirstChild();
1.63 + }
1.64 +
1.65 +protected:
1.66 + nsMathMLmsqrtFrame(nsStyleContext* aContext);
1.67 + virtual ~nsMathMLmsqrtFrame();
1.68 +};
1.69 +
1.70 +#endif /* nsMathMLmsqrtFrame_h___ */
1.71 +
