The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/layout/mathml/nsMathMLmrowFrame.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,69 @@
     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 +#include "nsMathMLmrowFrame.h"
    1.10 +#include "mozilla/gfx/2D.h"
    1.11 +
    1.12 +//
    1.13 +// <mrow> -- horizontally group any number of subexpressions - implementation
    1.14 +//
    1.15 +
    1.16 +nsIFrame*
    1.17 +NS_NewMathMLmrowFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
    1.18 +{
    1.19 +  return new (aPresShell) nsMathMLmrowFrame(aContext);
    1.20 +}
    1.21 +
    1.22 +NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmrowFrame)
    1.23 +
    1.24 +nsMathMLmrowFrame::~nsMathMLmrowFrame()
    1.25 +{
    1.26 +}
    1.27 +
    1.28 +NS_IMETHODIMP
    1.29 +nsMathMLmrowFrame::InheritAutomaticData(nsIFrame* aParent)
    1.30 +{
    1.31 +  // let the base class get the default from our parent
    1.32 +  nsMathMLContainerFrame::InheritAutomaticData(aParent);
    1.33 +
    1.34 +  mPresentationData.flags |= NS_MATHML_STRETCH_ALL_CHILDREN_VERTICALLY;
    1.35 +
    1.36 +  return NS_OK;
    1.37 +}
    1.38 +
    1.39 +nsresult
    1.40 +nsMathMLmrowFrame::AttributeChanged(int32_t  aNameSpaceID,
    1.41 +                                    nsIAtom* aAttribute,
    1.42 +                                    int32_t  aModType)
    1.43 +{
    1.44 +  // Special for <mtable>: In the frame construction code, we also use
    1.45 +  // this frame class as a wrapper for mtable. Hence, we should pass the
    1.46 +  // notification to the real mtable
    1.47 +  if (mContent->Tag() == nsGkAtoms::mtable_) {
    1.48 +    nsIFrame* frame = mFrames.FirstChild();
    1.49 +    for ( ; frame; frame = frame->GetFirstPrincipalChild()) {
    1.50 +      // drill down to the real mtable
    1.51 +      if (frame->GetType() == nsGkAtoms::tableOuterFrame)
    1.52 +        return frame->AttributeChanged(aNameSpaceID, aAttribute, aModType);
    1.53 +    }
    1.54 +    NS_NOTREACHED("mtable wrapper without the real table frame");
    1.55 +  }
    1.56 +
    1.57 +  return nsMathMLContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
    1.58 +}
    1.59 +
    1.60 +/* virtual */ eMathMLFrameType
    1.61 +nsMathMLmrowFrame::GetMathMLFrameType()
    1.62 +{
    1.63 +  if (!IsMrowLike()) {
    1.64 +    nsIMathMLFrame* child = do_QueryFrame(mFrames.FirstChild());
    1.65 +    if (child) {
    1.66 +      // We only have one child, so we return the frame type of that child as if
    1.67 +      // we didn't exist.
    1.68 +      return child->GetMathMLFrameType();
    1.69 +    }
    1.70 +  }
    1.71 +  return nsMathMLFrame::GetMathMLFrameType();
    1.72 +}