зеркало из https://github.com/mozilla/gecko-dev.git
69 строки
2.3 KiB
C++
69 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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 "nsMathMLmrowFrame.h"
|
|
|
|
#include "mozilla/PresShell.h"
|
|
#include "mozilla/gfx/2D.h"
|
|
|
|
using namespace mozilla;
|
|
|
|
//
|
|
// <mrow> -- horizontally group any number of subexpressions - implementation
|
|
//
|
|
|
|
nsIFrame* NS_NewMathMLmrowFrame(PresShell* aPresShell, ComputedStyle* aStyle) {
|
|
return new (aPresShell)
|
|
nsMathMLmrowFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmrowFrame)
|
|
|
|
nsMathMLmrowFrame::~nsMathMLmrowFrame() {}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmrowFrame::InheritAutomaticData(nsIFrame* aParent) {
|
|
// let the base class get the default from our parent
|
|
nsMathMLContainerFrame::InheritAutomaticData(aParent);
|
|
|
|
mPresentationData.flags |= NS_MATHML_STRETCH_ALL_CHILDREN_VERTICALLY;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsMathMLmrowFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute,
|
|
int32_t aModType) {
|
|
// Special for <mtable>: In the frame construction code, we also use
|
|
// this frame class as a wrapper for mtable. Hence, we should pass the
|
|
// notification to the real mtable
|
|
if (mContent->IsMathMLElement(nsGkAtoms::mtable_)) {
|
|
nsIFrame* frame = mFrames.FirstChild();
|
|
for (; frame; frame = frame->PrincipalChildList().FirstChild()) {
|
|
// drill down to the real mtable
|
|
if (frame->IsTableWrapperFrame())
|
|
return frame->AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("mtable wrapper without the real table frame");
|
|
}
|
|
|
|
return nsMathMLContainerFrame::AttributeChanged(aNameSpaceID, aAttribute,
|
|
aModType);
|
|
}
|
|
|
|
/* virtual */
|
|
eMathMLFrameType nsMathMLmrowFrame::GetMathMLFrameType() {
|
|
if (!IsMrowLike()) {
|
|
nsIMathMLFrame* child = do_QueryFrame(mFrames.FirstChild());
|
|
if (child) {
|
|
// We only have one child, so we return the frame type of that child as if
|
|
// we didn't exist.
|
|
return child->GetMathMLFrameType();
|
|
}
|
|
}
|
|
return nsMathMLFrame::GetMathMLFrameType();
|
|
}
|