layout/mathml/nsMathMLsemanticsFrame.cpp
author David Anderson <danderson@mozilla.com>
Thu, 05 Jan 2012 13:49:23 -0800
changeset 112384 47b0a1dab4d23d9d8a6ff38cdcb4f0ba4b735b7b
parent 42199 23f53ef7a5b412392c0cefd282848e9926f4532e
child 98983 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rw-r--r--
Follow-up nits to bug 714393.

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * License.
 *
 * The Original Code is Mozilla MathML Project.
 *
 * The Initial Developer of the Original Code is
 * Frederic Wang <fred.wang@free.fr>
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 * the Initial Developer. All Rights Reserved.
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#include "nsMathMLsemanticsFrame.h"

//
// <semantics> -- associate annotations with a MathML expression
//

nsIFrame*
NS_NewMathMLsemanticsFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
  return new (aPresShell) nsMathMLsemanticsFrame(aContext);
}

NS_IMPL_FRAMEARENA_HELPERS(nsMathMLsemanticsFrame)

nsMathMLsemanticsFrame::~nsMathMLsemanticsFrame()
{
}

NS_IMETHODIMP
nsMathMLsemanticsFrame::TransmitAutomaticData()
{
  // The REC defines the following elements to be embellished operators:
  // * one of the elements msub, msup, msubsup, munder, mover, munderover,
  //   mmultiscripts, mfrac, or semantics (Section 5.1 Annotation Framework),
  //   whose first argument exists and is an embellished operator; 
  //
  // If our first child is an embellished operator, its flags bubble to us
  mPresentationData.baseFrame = mFrames.FirstChild();
  GetEmbellishDataFrom(mPresentationData.baseFrame, mEmbellishData);

  return NS_OK;
}