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/* -*- 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/. */
#ifndef nsContainerFrameInlines_h___
#define nsContainerFrameInlines_h___
#include "nsContainerFrame.h"
namespace mozilla {
namespace detail {
static nscoord GetCoord(const LengthPercentage& aCoord, nscoord aIfNotCoord) {
if (aCoord.ConvertsToLength()) {
return aCoord.ToLength();
}
return aIfNotCoord;
}
static nscoord GetCoord(const LengthPercentageOrAuto& aCoord,
nscoord aIfNotCoord) {
if (aCoord.IsAuto()) {
return aIfNotCoord;
}
return GetCoord(aCoord.AsLengthPercentage(), aIfNotCoord);
}
} // namespace detail
} // namespace mozilla
template <typename ISizeData, typename F>
void nsContainerFrame::DoInlineIntrinsicISize(ISizeData* aData,
F& aHandleChildren) {
using namespace mozilla;
using mozilla::detail::GetCoord;
if (GetPrevInFlow()) return; // Already added.
WritingMode wm = GetWritingMode();
Side startSide = wm.PhysicalSideForInlineAxis(eLogicalEdgeStart);
Side endSide = wm.PhysicalSideForInlineAxis(eLogicalEdgeEnd);
const nsStylePadding* stylePadding = StylePadding();
const nsStyleBorder* styleBorder = StyleBorder();
const nsStyleMargin* styleMargin = StyleMargin();
// This goes at the beginning no matter how things are broken and how
// messy the bidi situations are, since per CSS2.1 section 8.6
// (implemented in bug 328168), the startSide border is always on the
// first line.
// This frame is a first-in-flow, but it might have a previous bidi
// continuation, in which case that continuation should handle the startSide
// border.
// For box-decoration-break:clone we setup clonePBM = startPBM + endPBM and
// add that to each line. For box-decoration-break:slice clonePBM is zero.
nscoord clonePBM = 0; // PBM = PaddingBorderMargin
const bool sliceBreak =
styleBorder->mBoxDecorationBreak == StyleBoxDecorationBreak::Slice;
if (!GetPrevContinuation() || MOZ_UNLIKELY(!sliceBreak)) {
nscoord startPBM =
// clamp negative calc() to 0
std::max(GetCoord(stylePadding->mPadding.Get(startSide), 0), 0) +
styleBorder->GetComputedBorderWidth(startSide) +
GetCoord(styleMargin->mMargin.Get(startSide), 0);
if (MOZ_LIKELY(sliceBreak)) {
aData->mCurrentLine += startPBM;
} else {
clonePBM = startPBM;
}
}
nscoord endPBM =
// clamp negative calc() to 0
std::max(GetCoord(stylePadding->mPadding.Get(endSide), 0), 0) +
styleBorder->GetComputedBorderWidth(endSide) +
GetCoord(styleMargin->mMargin.Get(endSide), 0);
if (MOZ_UNLIKELY(!sliceBreak)) {
clonePBM += endPBM;
aData->mCurrentLine += clonePBM;
}
const nsLineList_iterator* savedLine = aData->mLine;
nsIFrame* const savedLineContainer = aData->LineContainer();
nsContainerFrame* lastInFlow;
for (nsContainerFrame* nif = this; nif;
nif = static_cast<nsContainerFrame*>(nif->GetNextInFlow())) {
if (aData->mCurrentLine == 0) {
aData->mCurrentLine = clonePBM;
}
aHandleChildren(nif, aData);
// After we advance to our next-in-flow, the stored line and line container
// may no longer be correct. Just forget them.
aData->mLine = nullptr;
aData->SetLineContainer(nullptr);
lastInFlow = nif;
}
aData->mLine = savedLine;
aData->SetLineContainer(savedLineContainer);
// This goes at the end no matter how things are broken and how
// messy the bidi situations are, since per CSS2.1 section 8.6
// (implemented in bug 328168), the endSide border is always on the
// last line.
// We reached the last-in-flow, but it might have a next bidi
// continuation, in which case that continuation should handle
// the endSide border.
if (MOZ_LIKELY(!lastInFlow->GetNextContinuation() && sliceBreak)) {
aData->mCurrentLine += endPBM;
}
}
#endif // nsContainerFrameInlines_h___
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