mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
94 lines
3.3 KiB
C++
94 lines
3.3 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 "nsMathMLmstyleFrame.h"
|
|
#include "mozilla/gfx/2D.h"
|
|
|
|
//
|
|
// <mstyle> -- style change
|
|
//
|
|
|
|
nsIFrame*
|
|
NS_NewMathMLmstyleFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsMathMLmstyleFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmstyleFrame)
|
|
|
|
nsMathMLmstyleFrame::~nsMathMLmstyleFrame()
|
|
{
|
|
}
|
|
|
|
// mstyle needs special care for its scriptlevel and displaystyle attributes
|
|
NS_IMETHODIMP
|
|
nsMathMLmstyleFrame::InheritAutomaticData(nsIFrame* aParent)
|
|
{
|
|
// let the base class get the default from our parent
|
|
nsMathMLContainerFrame::InheritAutomaticData(aParent);
|
|
|
|
// sync with our current state
|
|
mPresentationData.flags |= NS_MATHML_STRETCH_ALL_CHILDREN_VERTICALLY;
|
|
mPresentationData.mstyle = this;
|
|
|
|
// see if the displaystyle attribute is there
|
|
nsMathMLFrame::FindAttrDisplaystyle(mContent, mPresentationData);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmstyleFrame::TransmitAutomaticData()
|
|
{
|
|
return TransmitAutomaticDataForMrowLikeElement();
|
|
}
|
|
|
|
// displaystyle and scriptlevel are special in <mstyle>...
|
|
// Since UpdatePresentation() and UpdatePresentationDataFromChildAt() can be called
|
|
// by a parent, ensure that the explicit attributes of <mstyle> take precedence
|
|
NS_IMETHODIMP
|
|
nsMathMLmstyleFrame::UpdatePresentationData(uint32_t aFlagsValues,
|
|
uint32_t aWhichFlags)
|
|
{
|
|
if (NS_MATHML_HAS_EXPLICIT_DISPLAYSTYLE(mPresentationData.flags)) {
|
|
// our current state takes precedence, disallow updating the displastyle
|
|
aWhichFlags &= ~NS_MATHML_DISPLAYSTYLE;
|
|
aFlagsValues &= ~NS_MATHML_DISPLAYSTYLE;
|
|
}
|
|
|
|
return nsMathMLContainerFrame::UpdatePresentationData(aFlagsValues, aWhichFlags);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmstyleFrame::UpdatePresentationDataFromChildAt(int32_t aFirstIndex,
|
|
int32_t aLastIndex,
|
|
uint32_t aFlagsValues,
|
|
uint32_t aWhichFlags)
|
|
{
|
|
if (NS_MATHML_HAS_EXPLICIT_DISPLAYSTYLE(mPresentationData.flags)) {
|
|
// our current state takes precedence, disallow updating the displastyle
|
|
aWhichFlags &= ~NS_MATHML_DISPLAYSTYLE;
|
|
aFlagsValues &= ~NS_MATHML_DISPLAYSTYLE;
|
|
}
|
|
|
|
// let the base class worry about the update
|
|
return
|
|
nsMathMLContainerFrame::UpdatePresentationDataFromChildAt(
|
|
aFirstIndex, aLastIndex, aFlagsValues, aWhichFlags);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmstyleFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
// Other attributes can affect too many things, ask our parent to re-layout
|
|
// its children so that we can pick up changes in our attributes & transmit
|
|
// them in our subtree. However, our siblings will be re-laid too. We used
|
|
// to have a more speedier but more verbose alternative that didn't re-layout
|
|
// our siblings. See bug 114909 - attachment 67668.
|
|
return ReLayoutChildren(mParent);
|
|
}
|