gecko-dev/layout/mathml/nsMathMLsemanticsFrame.cpp

39 строки
1.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#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;
}