зеркало из https://github.com/mozilla/gecko-dev.git
61 строка
1.8 KiB
C++
61 строка
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsCOMPtr.h"
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#include "nsFrame.h"
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#include "nsStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsMathMLmrowFrame.h"
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//
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// <mrow> -- horizontally group any number of subexpressions - implementation
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//
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nsIFrame*
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NS_NewMathMLmrowFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsMathMLmrowFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmrowFrame)
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nsMathMLmrowFrame::~nsMathMLmrowFrame()
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{
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}
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NS_IMETHODIMP
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nsMathMLmrowFrame::InheritAutomaticData(nsIFrame* aParent)
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{
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// let the base class get the default from our parent
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nsMathMLContainerFrame::InheritAutomaticData(aParent);
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mPresentationData.flags |= NS_MATHML_STRETCH_ALL_CHILDREN_VERTICALLY;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsMathMLmrowFrame::AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType)
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{
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// Special for <mtable>: In the frame construction code, we also use
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// this frame class as a wrapper for mtable. Hence, we should pass the
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// notification to the real mtable
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if (mContent->Tag() == nsGkAtoms::mtable_) {
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nsIFrame* frame = mFrames.FirstChild();
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for ( ; frame; frame = frame->GetFirstPrincipalChild()) {
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// drill down to the real mtable
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if (frame->GetType() == nsGkAtoms::tableOuterFrame)
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return frame->AttributeChanged(aNameSpaceID, aAttribute, aModType);
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}
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NS_NOTREACHED("mtable wrapper without the real table frame");
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}
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return nsMathMLContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
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}
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