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c854a16b1a
gecko/layout/generic/nsRubyBaseContainerFrame.cpp
Xidorn Quan 8eeb38494e Bug 1116631 - Fix isize reservation of ruby base container. r=roc 
--HG--
extra : rebase_source : efc67e14e7e6bbc2b6ba736b09780a9e507b122e
extra : source : 86371e41d07bab00c6cd04b236d194fa312b99c4
2015-01-07 12:47:09 +11:00

730 lines
26 KiB
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code is subject to the terms of the Mozilla Public License
* version 2.0 (the "License"). You can obtain a copy of the License at
* http://mozilla.org/MPL/2.0/. */
/* rendering object for CSS "display: ruby-base-container" */
#include "nsRubyBaseContainerFrame.h"
#include "nsContentUtils.h"
#include "nsLineLayout.h"
#include "nsPresContext.h"
#include "nsStyleContext.h"
#include "nsStyleStructInlines.h"
#include "WritingModes.h"
#include "RubyUtils.h"
using namespace mozilla;
//----------------------------------------------------------------------
// Frame class boilerplate
// =======================
NS_QUERYFRAME_HEAD(nsRubyBaseContainerFrame)
NS_QUERYFRAME_ENTRY(nsRubyBaseContainerFrame)
NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
NS_IMPL_FRAMEARENA_HELPERS(nsRubyBaseContainerFrame)
nsContainerFrame*
NS_NewRubyBaseContainerFrame(nsIPresShell* aPresShell,
nsStyleContext* aContext)
{
return new (aPresShell) nsRubyBaseContainerFrame(aContext);
}
//----------------------------------------------------------------------
// nsRubyBaseContainerFrame Method Implementations
// ===============================================
nsIAtom*
nsRubyBaseContainerFrame::GetType() const
{
return nsGkAtoms::rubyBaseContainerFrame;
}
#ifdef DEBUG_FRAME_DUMP
nsresult
nsRubyBaseContainerFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("RubyBaseContainer"), aResult);
}
#endif
/**
* Ruby column is a unit consists of one ruby base and all ruby
* annotations paired with it.
* See http://dev.w3.org/csswg/css-ruby/#ruby-pairing
*/
struct MOZ_STACK_CLASS mozilla::RubyColumn
{
nsIFrame* mBaseFrame;
nsAutoTArray<nsIFrame*, RTC_ARRAY_SIZE> mTextFrames;
RubyColumn() : mBaseFrame(nullptr) { }
};
class MOZ_STACK_CLASS RubyColumnEnumerator
{
public:
RubyColumnEnumerator(nsRubyBaseContainerFrame* aRBCFrame,
const nsTArray<nsRubyTextContainerFrame*>& aRTCFrames);
void Next();
bool AtEnd() const;
uint32_t GetLevelCount() const { return mFrames.Length(); }
nsIFrame* GetFrame(uint32_t aIndex) const { return mFrames[aIndex]; }
nsIFrame* GetBaseFrame() const { return GetFrame(0); }
nsIFrame* GetTextFrame(uint32_t aIndex) const { return GetFrame(aIndex + 1); }
void GetColumn(RubyColumn& aColumn) const;
private:
nsAutoTArray<nsIFrame*, RTC_ARRAY_SIZE + 1> mFrames;
};
RubyColumnEnumerator::RubyColumnEnumerator(
nsRubyBaseContainerFrame* aBaseContainer,
const nsTArray<nsRubyTextContainerFrame*>& aTextContainers)
{
const uint32_t rtcCount = aTextContainers.Length();
mFrames.SetCapacity(rtcCount + 1);
mFrames.AppendElement(aBaseContainer->GetFirstPrincipalChild());
for (uint32_t i = 0; i < rtcCount; i++) {
nsRubyTextContainerFrame* container = aTextContainers[i];
// If the container is for span, leave a nullptr here.
// Spans do not take part in pairing.
nsIFrame* rtFrame = !container->IsSpanContainer() ?
aTextContainers[i]->GetFirstPrincipalChild() : nullptr;
mFrames.AppendElement(rtFrame);
}
}
void
RubyColumnEnumerator::Next()
{
for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
if (mFrames[i]) {
mFrames[i] = mFrames[i]->GetNextSibling();
}
}
}
bool
RubyColumnEnumerator::AtEnd() const
{
for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
if (mFrames[i]) {
return false;
}
}
return true;
}
void
RubyColumnEnumerator::GetColumn(RubyColumn& aColumn) const
{
aColumn.mBaseFrame = mFrames[0];
aColumn.mTextFrames.ClearAndRetainStorage();
for (uint32_t i = 1, iend = mFrames.Length(); i < iend; i++) {
aColumn.mTextFrames.AppendElement(mFrames[i]);
}
}
static nscoord
CalculateColumnPrefISize(nsRenderingContext* aRenderingContext,
const RubyColumnEnumerator& aEnumerator)
{
nscoord max = 0;
uint32_t levelCount = aEnumerator.GetLevelCount();
for (uint32_t i = 0; i < levelCount; i++) {
nsIFrame* frame = aEnumerator.GetFrame(i);
if (frame) {
max = std::max(max, frame->GetPrefISize(aRenderingContext));
}
}
return max;
}
/* virtual */ void
nsRubyBaseContainerFrame::AddInlineMinISize(
nsRenderingContext *aRenderingContext, nsIFrame::InlineMinISizeData *aData)
{
AutoTextContainerArray textContainers;
GetTextContainers(textContainers);
for (uint32_t i = 0, iend = textContainers.Length(); i < iend; i++) {
if (textContainers[i]->IsSpanContainer()) {
// Since spans are not breakable internally, use our pref isize
// directly if there is any span.
aData->currentLine += GetPrefISize(aRenderingContext);
return;
}
}
nscoord max = 0;
RubyColumnEnumerator enumerator(this, textContainers);
for (; !enumerator.AtEnd(); enumerator.Next()) {
// We use *pref* isize for computing the min isize of columns
// because ruby bases and texts are unbreakable internally.
max = std::max(max, CalculateColumnPrefISize(aRenderingContext,
enumerator));
}
aData->currentLine += max;
}
/* virtual */ void
nsRubyBaseContainerFrame::AddInlinePrefISize(
nsRenderingContext *aRenderingContext, nsIFrame::InlinePrefISizeData *aData)
{
AutoTextContainerArray textContainers;
GetTextContainers(textContainers);
nscoord sum = 0;
RubyColumnEnumerator enumerator(this, textContainers);
for (; !enumerator.AtEnd(); enumerator.Next()) {
sum += CalculateColumnPrefISize(aRenderingContext, enumerator);
}
for (uint32_t i = 0, iend = textContainers.Length(); i < iend; i++) {
if (textContainers[i]->IsSpanContainer()) {
nsIFrame* frame = textContainers[i]->GetFirstPrincipalChild();
sum = std::max(sum, frame->GetPrefISize(aRenderingContext));
}
}
aData->currentLine += sum;
}
/* virtual */ bool
nsRubyBaseContainerFrame::IsFrameOfType(uint32_t aFlags) const
{
return nsContainerFrame::IsFrameOfType(aFlags &
~(nsIFrame::eLineParticipant));
}
void
nsRubyBaseContainerFrame::GetTextContainers(TextContainerArray& aTextContainers)
{
MOZ_ASSERT(aTextContainers.IsEmpty());
for (RubyTextContainerIterator iter(this); !iter.AtEnd(); iter.Next()) {
aTextContainers.AppendElement(iter.GetTextContainer());
}
}
/* virtual */ bool
nsRubyBaseContainerFrame::CanContinueTextRun() const
{
return true;
}
/* virtual */ LogicalSize
nsRubyBaseContainerFrame::ComputeSize(nsRenderingContext *aRenderingContext,
WritingMode aWM,
const LogicalSize& aCBSize,
nscoord aAvailableISize,
const LogicalSize& aMargin,
const LogicalSize& aBorder,
const LogicalSize& aPadding,
ComputeSizeFlags aFlags)
{
// Ruby base container frame is inline,
// hence don't compute size before reflow.
return LogicalSize(aWM, NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE);
}
/* virtual */ nscoord
nsRubyBaseContainerFrame::GetLogicalBaseline(WritingMode aWritingMode) const
{
return mBaseline;
}
struct nsRubyBaseContainerFrame::ReflowState
{
bool mAllowLineBreak;
const TextContainerArray& mTextContainers;
const nsHTMLReflowState& mBaseReflowState;
const nsTArray<UniquePtr<nsHTMLReflowState>>& mTextReflowStates;
};
// Check whether the given extra isize can fit in the line in base level.
static bool
ShouldBreakBefore(const nsHTMLReflowState& aReflowState, nscoord aExtraISize)
{
nsLineLayout* lineLayout = aReflowState.mLineLayout;
int32_t offset;
gfxBreakPriority priority;
nscoord icoord = lineLayout->GetCurrentICoord();
return icoord + aExtraISize > aReflowState.AvailableISize() &&
lineLayout->GetLastOptionalBreakPosition(&offset, &priority);
}
/* virtual */ void
nsRubyBaseContainerFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsRubyBaseContainerFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
aStatus = NS_FRAME_COMPLETE;
if (!aReflowState.mLineLayout) {
NS_ASSERTION(
aReflowState.mLineLayout,
"No line layout provided to RubyBaseContainerFrame reflow method.");
return;
}
MOZ_ASSERT(aReflowState.mRubyReflowState, "No ruby reflow state provided");
AutoTextContainerArray textContainers;
GetTextContainers(textContainers);
MoveOverflowToChildList();
// Ask text containers to drain overflows
const uint32_t rtcCount = textContainers.Length();
for (uint32_t i = 0; i < rtcCount; i++) {
textContainers[i]->MoveOverflowToChildList();
}
WritingMode lineWM = aReflowState.mLineLayout->GetWritingMode();
LogicalSize availSize(lineWM, aReflowState.AvailableWidth(),
aReflowState.AvailableHeight());
// We have a reflow state and a line layout for each RTC.
// They are conceptually the state of the RTCs, but we don't actually
// reflow those RTCs in this code. These two arrays are holders of
// the reflow states and line layouts.
// Since there are pointers refer to reflow states and line layouts,
// it is necessary to guarantee that they won't be moved. For this
// reason, they are wrapped in UniquePtr here.
nsAutoTArray<UniquePtr<nsHTMLReflowState>, RTC_ARRAY_SIZE> reflowStates;
nsAutoTArray<UniquePtr<nsLineLayout>, RTC_ARRAY_SIZE> lineLayouts;
reflowStates.SetCapacity(rtcCount);
lineLayouts.SetCapacity(rtcCount);
// Begin the line layout for each ruby text container in advance.
bool hasSpan = false;
for (uint32_t i = 0; i < rtcCount; i++) {
nsRubyTextContainerFrame* textContainer = textContainers[i];
if (textContainer->IsSpanContainer()) {
hasSpan = true;
}
nsHTMLReflowState* reflowState = new nsHTMLReflowState(
aPresContext, *aReflowState.parentReflowState, textContainer, availSize);
reflowStates.AppendElement(reflowState);
nsLineLayout* lineLayout = new nsLineLayout(aPresContext,
reflowState->mFloatManager,
reflowState, nullptr,
aReflowState.mLineLayout);
lineLayouts.AppendElement(lineLayout);
// Line number is useless for ruby text
// XXX nullptr here may cause problem, see comments for
// nsLineLayout::mBlockRS and nsLineLayout::AddFloat
lineLayout->Init(nullptr, reflowState->CalcLineHeight(), -1);
reflowState->mLineLayout = lineLayout;
LogicalMargin borderPadding = reflowState->ComputedLogicalBorderPadding();
nscoord containerWidth =
reflowState->ComputedWidth() + borderPadding.LeftRight(lineWM);
lineLayout->BeginLineReflow(borderPadding.IStart(lineWM),
borderPadding.BStart(lineWM),
reflowState->ComputedISize(),
NS_UNCONSTRAINEDSIZE,
false, false, lineWM, containerWidth);
lineLayout->AttachRootFrameToBaseLineLayout();
}
WritingMode frameWM = aReflowState.GetWritingMode();
LogicalMargin borderPadding = aReflowState.ComputedLogicalBorderPadding();
nscoord startEdge = borderPadding.IStart(frameWM);
nscoord endEdge = aReflowState.AvailableISize() - borderPadding.IEnd(frameWM);
aReflowState.mLineLayout->BeginSpan(this, &aReflowState,
startEdge, endEdge, &mBaseline);
nsIFrame* parent = GetParent();
bool inNestedRuby = parent->StyleContext()->IsInlineDescendantOfRuby();
// Allow line break between ruby bases when white-space allows,
// we are not inside a nested ruby, and there is no span.
bool allowLineBreak = !inNestedRuby && StyleText()->WhiteSpaceCanWrap(this);
bool allowInitialLineBreak = allowLineBreak;
if (!GetPrevInFlow()) {
allowInitialLineBreak = !inNestedRuby &&
parent->StyleText()->WhiteSpaceCanWrap(parent);
}
if (allowInitialLineBreak && aReflowState.mLineLayout->LineIsBreakable() &&
aReflowState.mLineLayout->NotifyOptionalBreakPosition(
this, 0, startEdge <= aReflowState.AvailableISize(),
gfxBreakPriority::eNormalBreak)) {
aStatus = NS_INLINE_LINE_BREAK_BEFORE();
}
nscoord isize = 0;
if (aStatus == NS_FRAME_COMPLETE) {
// Reflow columns excluding any span
ReflowState reflowState = {
allowLineBreak && !hasSpan, textContainers, aReflowState, reflowStates
};
isize = ReflowColumns(reflowState, aStatus);
}
DebugOnly<nscoord> lineSpanSize = aReflowState.mLineLayout->EndSpan(this);
aDesiredSize.ISize(lineWM) = isize;
// When there are no frames inside the ruby base container, EndSpan
// will return 0. However, in this case, the actual width of the
// container could be non-zero because of non-empty ruby annotations.
MOZ_ASSERT(NS_INLINE_IS_BREAK_BEFORE(aStatus) ||
isize == lineSpanSize || mFrames.IsEmpty());
// If there exists any span, the columns must either be completely
// reflowed, or be not reflowed at all.
MOZ_ASSERT(NS_INLINE_IS_BREAK_BEFORE(aStatus) ||
NS_FRAME_IS_COMPLETE(aStatus) || !hasSpan);
if (!NS_INLINE_IS_BREAK_BEFORE(aStatus) &&
NS_FRAME_IS_COMPLETE(aStatus) && hasSpan) {
// Reflow spans
ReflowState reflowState = {
false, textContainers, aReflowState, reflowStates
};
nscoord spanISize = ReflowSpans(reflowState);
nscoord deltaISize = spanISize - isize;
if (deltaISize > 0) {
if (allowLineBreak && ShouldBreakBefore(aReflowState, deltaISize)) {
aStatus = NS_INLINE_LINE_BREAK_BEFORE();
} else {
isize = spanISize;
}
}
// When there are spans, ReflowColumns and ReflowOneColumn won't
// record any optional break position. We have to record one
// at the end of this segment.
if (!NS_INLINE_IS_BREAK(aStatus) && allowLineBreak &&
aReflowState.mLineLayout->NotifyOptionalBreakPosition(
this, INT32_MAX, startEdge + isize <= aReflowState.AvailableISize(),
gfxBreakPriority::eNormalBreak)) {
aStatus = NS_INLINE_LINE_BREAK_AFTER(aStatus);
}
}
for (uint32_t i = 0; i < rtcCount; i++) {
// It happens before the ruby text container is reflowed, and that
// when it is reflowed, it will just use this size.
nsRubyTextContainerFrame* textContainer = textContainers[i];
nsLineLayout* lineLayout = lineLayouts[i].get();
RubyUtils::ClearReservedISize(textContainer);
nscoord rtcISize = lineLayout->GetCurrentICoord();
// Only span containers and containers with collapsed annotations
// need reserving isize. For normal ruby text containers, their
// children will be expanded properly. We only need to expand their
// own size.
if (!textContainer->IsSpanContainer()) {
rtcISize = isize;
} else if (isize > rtcISize) {
RubyUtils::SetReservedISize(textContainer, isize - rtcISize);
}
lineLayout->VerticalAlignLine();
LogicalSize lineSize(lineWM, rtcISize, lineLayout->GetFinalLineBSize());
aReflowState.mRubyReflowState->SetTextContainerInfo(i, textContainer, lineSize);
lineLayout->EndLineReflow();
}
nsLayoutUtils::SetBSizeFromFontMetrics(this, aDesiredSize, aReflowState,
borderPadding, lineWM, frameWM);
}
/**
* This struct stores the continuations after this frame and
* corresponding text containers. It is used to speed up looking
* ahead for nonempty continuations.
*/
struct MOZ_STACK_CLASS nsRubyBaseContainerFrame::PullFrameState
{
ContinuationTraversingState mBase;
nsAutoTArray<ContinuationTraversingState, RTC_ARRAY_SIZE> mTexts;
const TextContainerArray& mTextContainers;
PullFrameState(nsRubyBaseContainerFrame* aBaseContainer,
const TextContainerArray& aTextContainers);
};
nscoord
nsRubyBaseContainerFrame::ReflowColumns(const ReflowState& aReflowState,
nsReflowStatus& aStatus)
{
nsLineLayout* lineLayout = aReflowState.mBaseReflowState.mLineLayout;
const uint32_t rtcCount = aReflowState.mTextContainers.Length();
nscoord istart = lineLayout->GetCurrentICoord();
nscoord icoord = istart;
nsReflowStatus reflowStatus = NS_FRAME_COMPLETE;
aStatus = NS_FRAME_COMPLETE;
uint32_t columnIndex = 0;
RubyColumn column;
column.mTextFrames.SetCapacity(rtcCount);
RubyColumnEnumerator e(this, aReflowState.mTextContainers);
for (; !e.AtEnd(); e.Next()) {
e.GetColumn(column);
icoord += ReflowOneColumn(aReflowState, columnIndex, column, reflowStatus);
if (!NS_INLINE_IS_BREAK_BEFORE(reflowStatus)) {
columnIndex++;
}
if (NS_INLINE_IS_BREAK(reflowStatus)) {
break;
}
// We are not handling overflow here.
MOZ_ASSERT(reflowStatus == NS_FRAME_COMPLETE);
}
bool isComplete = false;
PullFrameState pullFrameState(this, aReflowState.mTextContainers);
while (!NS_INLINE_IS_BREAK(reflowStatus)) {
// We are not handling overflow here.
MOZ_ASSERT(reflowStatus == NS_FRAME_COMPLETE);
// Try pull some frames from next continuations. This call replaces
// frames in |column| with the frame pulled in each level.
PullOneColumn(lineLayout, pullFrameState, column, isComplete);
if (isComplete) {
// No more frames can be pulled.
break;
}
icoord += ReflowOneColumn(aReflowState, columnIndex, column, reflowStatus);
if (!NS_INLINE_IS_BREAK_BEFORE(reflowStatus)) {
columnIndex++;
}
}
if (!e.AtEnd() && NS_INLINE_IS_BREAK_AFTER(reflowStatus)) {
// The current column has been successfully placed.
// Skip to the next column and mark break before.
e.Next();
e.GetColumn(column);
reflowStatus = NS_INLINE_LINE_BREAK_BEFORE();
}
if (!e.AtEnd() || (GetNextInFlow() && !isComplete)) {
NS_FRAME_SET_INCOMPLETE(aStatus);
}
if (NS_INLINE_IS_BREAK_BEFORE(reflowStatus)) {
if (!columnIndex || !aReflowState.mAllowLineBreak) {
// If no column has been placed yet, or we have any span,
// the whole container should be in the next line.
aStatus = NS_INLINE_LINE_BREAK_BEFORE();
return 0;
}
aStatus = NS_INLINE_LINE_BREAK_AFTER(aStatus);
MOZ_ASSERT(NS_FRAME_IS_COMPLETE(aStatus) || aReflowState.mAllowLineBreak);
if (column.mBaseFrame) {
PushChildren(column.mBaseFrame, column.mBaseFrame->GetPrevSibling());
}
for (uint32_t i = 0; i < rtcCount; i++) {
nsIFrame* textFrame = column.mTextFrames[i];
if (textFrame) {
aReflowState.mTextContainers[i]->PushChildren(
textFrame, textFrame->GetPrevSibling());
}
}
} else if (NS_INLINE_IS_BREAK_AFTER(reflowStatus)) {
// |reflowStatus| being break after here may only happen when
// there is a break after the column just pulled, or the whole
// segment has been completely reflowed. In those cases, we do
// not need to push anything.
MOZ_ASSERT(e.AtEnd());
aStatus = NS_INLINE_LINE_BREAK_AFTER(aStatus);
}
return icoord - istart;
}
nscoord
nsRubyBaseContainerFrame::ReflowOneColumn(const ReflowState& aReflowState,
uint32_t aColumnIndex,
const RubyColumn& aColumn,
nsReflowStatus& aStatus)
{
const nsHTMLReflowState& baseReflowState = aReflowState.mBaseReflowState;
const auto& textReflowStates = aReflowState.mTextReflowStates;
WritingMode lineWM = baseReflowState.mLineLayout->GetWritingMode();
const uint32_t rtcCount = aReflowState.mTextContainers.Length();
MOZ_ASSERT(aColumn.mTextFrames.Length() == rtcCount);
MOZ_ASSERT(textReflowStates.Length() == rtcCount);
nscoord istart = baseReflowState.mLineLayout->GetCurrentICoord();
nscoord columnISize = 0;
nsAutoString baseText;
if (aColumn.mBaseFrame) {
if (!nsContentUtils::GetNodeTextContent(aColumn.mBaseFrame->GetContent(),
true, baseText)) {
NS_RUNTIMEABORT("OOM");
}
}
// Reflow text frames
for (uint32_t i = 0; i < rtcCount; i++) {
nsIFrame* textFrame = aColumn.mTextFrames[i];
if (textFrame) {
MOZ_ASSERT(textFrame->GetType() == nsGkAtoms::rubyTextFrame);
nsAutoString annotationText;
if (!nsContentUtils::GetNodeTextContent(textFrame->GetContent(),
true, annotationText)) {
NS_RUNTIMEABORT("OOM");
}
// Per CSS Ruby spec, the content comparison for auto-hiding
// takes place prior to white spaces collapsing (white-space)
// and text transformation (text-transform), and ignores elements
// (considers only the textContent of the boxes). Which means
// using the content tree text comparison is correct.
if (annotationText.Equals(baseText)) {
textFrame->AddStateBits(NS_RUBY_TEXT_FRAME_AUTOHIDE);
} else {
textFrame->RemoveStateBits(NS_RUBY_TEXT_FRAME_AUTOHIDE);
}
nsReflowStatus reflowStatus;
nsHTMLReflowMetrics metrics(*textReflowStates[i]);
RubyUtils::ClearReservedISize(textFrame);
bool pushedFrame;
textReflowStates[i]->mLineLayout->ReflowFrame(textFrame, reflowStatus,
&metrics, pushedFrame);
MOZ_ASSERT(!NS_INLINE_IS_BREAK(reflowStatus) && !pushedFrame,
"Any line break inside ruby box should has been suppressed");
columnISize = std::max(columnISize, metrics.ISize(lineWM));
}
}
if (aReflowState.mAllowLineBreak &&
ShouldBreakBefore(baseReflowState, columnISize)) {
// Since ruby text container uses an independent line layout, it
// may successfully place a frame because the line is empty while
// the line of base container is not.
aStatus = NS_INLINE_LINE_BREAK_BEFORE();
return 0;
}
// Reflow the base frame
if (aColumn.mBaseFrame) {
MOZ_ASSERT(aColumn.mBaseFrame->GetType() == nsGkAtoms::rubyBaseFrame);
nsReflowStatus reflowStatus;
nsHTMLReflowMetrics metrics(baseReflowState);
RubyUtils::ClearReservedISize(aColumn.mBaseFrame);
bool pushedFrame;
baseReflowState.mLineLayout->ReflowFrame(aColumn.mBaseFrame, reflowStatus,
&metrics, pushedFrame);
MOZ_ASSERT(!NS_INLINE_IS_BREAK(reflowStatus) && !pushedFrame,
"Any line break inside ruby box should has been suppressed");
columnISize = std::max(columnISize, metrics.ISize(lineWM));
}
// Align all the line layout to the new coordinate.
nscoord icoord = istart + columnISize;
nscoord deltaISize = icoord - baseReflowState.mLineLayout->GetCurrentICoord();
if (deltaISize > 0) {
baseReflowState.mLineLayout->AdvanceICoord(deltaISize);
if (aColumn.mBaseFrame) {
RubyUtils::SetReservedISize(aColumn.mBaseFrame, deltaISize);
}
}
for (uint32_t i = 0; i < rtcCount; i++) {
if (aReflowState.mTextContainers[i]->IsSpanContainer()) {
continue;
}
nsLineLayout* lineLayout = textReflowStates[i]->mLineLayout;
nsIFrame* textFrame = aColumn.mTextFrames[i];
nscoord deltaISize = icoord - lineLayout->GetCurrentICoord();
if (deltaISize > 0) {
lineLayout->AdvanceICoord(deltaISize);
if (textFrame) {
RubyUtils::SetReservedISize(textFrame, deltaISize);
}
}
if (aColumn.mBaseFrame && textFrame) {
lineLayout->AttachLastFrameToBaseLineLayout();
}
}
if (aReflowState.mAllowLineBreak &&
baseReflowState.mLineLayout->NotifyOptionalBreakPosition(
this, aColumnIndex + 1, icoord <= baseReflowState.AvailableISize(),
gfxBreakPriority::eNormalBreak)) {
aStatus = NS_INLINE_LINE_BREAK_AFTER(aStatus);
}
return columnISize;
}
nsRubyBaseContainerFrame::PullFrameState::PullFrameState(
nsRubyBaseContainerFrame* aBaseContainer,
const TextContainerArray& aTextContainers)
: mBase(aBaseContainer)
, mTextContainers(aTextContainers)
{
const uint32_t rtcCount = aTextContainers.Length();
for (uint32_t i = 0; i < rtcCount; i++) {
mTexts.AppendElement(aTextContainers[i]);
}
}
void
nsRubyBaseContainerFrame::PullOneColumn(nsLineLayout* aLineLayout,
PullFrameState& aPullFrameState,
RubyColumn& aColumn,
bool& aIsComplete)
{
const TextContainerArray& textContainers = aPullFrameState.mTextContainers;
const uint32_t rtcCount = textContainers.Length();
aColumn.mBaseFrame = PullNextInFlowChild(aPullFrameState.mBase);
aIsComplete = !aColumn.mBaseFrame;
aColumn.mTextFrames.ClearAndRetainStorage();
for (uint32_t i = 0; i < rtcCount; i++) {
nsIFrame* nextText =
textContainers[i]->PullNextInFlowChild(aPullFrameState.mTexts[i]);
aColumn.mTextFrames.AppendElement(nextText);
// If there exists any frame in continations, we haven't
// completed the reflow process.
aIsComplete = aIsComplete && !nextText;
}
if (!aIsComplete) {
// We pulled frames from the next line, hence mark it dirty.
aLineLayout->SetDirtyNextLine();
}
}
nscoord
nsRubyBaseContainerFrame::ReflowSpans(const ReflowState& aReflowState)
{
WritingMode lineWM =
aReflowState.mBaseReflowState.mLineLayout->GetWritingMode();
nscoord spanISize = 0;
for (uint32_t i = 0, iend = aReflowState.mTextContainers.Length();
i < iend; i++) {
nsRubyTextContainerFrame* container = aReflowState.mTextContainers[i];
if (!container->IsSpanContainer()) {
continue;
}
nsIFrame* rtFrame = container->GetFirstPrincipalChild();
nsReflowStatus reflowStatus;
nsHTMLReflowMetrics metrics(*aReflowState.mTextReflowStates[i]);
bool pushedFrame;
aReflowState.mTextReflowStates[i]->mLineLayout->
ReflowFrame(rtFrame, reflowStatus, &metrics, pushedFrame);
MOZ_ASSERT(!NS_INLINE_IS_BREAK(reflowStatus) && !pushedFrame,
"Any line break inside ruby box should has been suppressed");
spanISize = std::max(spanISize, metrics.ISize(lineWM));
}
return spanISize;
}
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