mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
733 lines
26 KiB
C++
733 lines
26 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code is subject to the terms of the Mozilla Public License
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* version 2.0 (the "License"). You can obtain a copy of the License at
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* http://mozilla.org/MPL/2.0/. */
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/* rendering object for CSS "display: ruby-base-container" */
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#include "nsRubyBaseContainerFrame.h"
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#include "nsContentUtils.h"
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#include "nsLineLayout.h"
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#include "nsPresContext.h"
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#include "nsStyleContext.h"
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#include "nsStyleStructInlines.h"
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#include "WritingModes.h"
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#include "RubyUtils.h"
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using namespace mozilla;
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//----------------------------------------------------------------------
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// Frame class boilerplate
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// =======================
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NS_QUERYFRAME_HEAD(nsRubyBaseContainerFrame)
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NS_QUERYFRAME_ENTRY(nsRubyBaseContainerFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
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NS_IMPL_FRAMEARENA_HELPERS(nsRubyBaseContainerFrame)
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nsContainerFrame*
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NS_NewRubyBaseContainerFrame(nsIPresShell* aPresShell,
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nsStyleContext* aContext)
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{
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return new (aPresShell) nsRubyBaseContainerFrame(aContext);
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}
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//----------------------------------------------------------------------
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// nsRubyBaseContainerFrame Method Implementations
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// ===============================================
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nsIAtom*
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nsRubyBaseContainerFrame::GetType() const
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{
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return nsGkAtoms::rubyBaseContainerFrame;
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}
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#ifdef DEBUG_FRAME_DUMP
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nsresult
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nsRubyBaseContainerFrame::GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("RubyBaseContainer"), aResult);
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}
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#endif
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/**
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* Ruby column is a unit consists of one ruby base and all ruby
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* annotations paired with it.
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* See http://dev.w3.org/csswg/css-ruby/#ruby-pairing
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*/
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struct MOZ_STACK_CLASS mozilla::RubyColumn
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{
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nsIFrame* mBaseFrame;
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nsAutoTArray<nsIFrame*, RTC_ARRAY_SIZE> mTextFrames;
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RubyColumn() : mBaseFrame(nullptr) { }
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};
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class MOZ_STACK_CLASS RubyColumnEnumerator
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{
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public:
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RubyColumnEnumerator(nsRubyBaseContainerFrame* aRBCFrame,
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const nsTArray<nsRubyTextContainerFrame*>& aRTCFrames);
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void Next();
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bool AtEnd() const;
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uint32_t GetLevelCount() const { return mFrames.Length(); }
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nsIFrame* GetFrame(uint32_t aIndex) const { return mFrames[aIndex]; }
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nsIFrame* GetBaseFrame() const { return GetFrame(0); }
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nsIFrame* GetTextFrame(uint32_t aIndex) const { return GetFrame(aIndex + 1); }
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void GetColumn(RubyColumn& aColumn) const;
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private:
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nsAutoTArray<nsIFrame*, RTC_ARRAY_SIZE + 1> mFrames;
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};
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RubyColumnEnumerator::RubyColumnEnumerator(
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nsRubyBaseContainerFrame* aBaseContainer,
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const nsTArray<nsRubyTextContainerFrame*>& aTextContainers)
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{
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const uint32_t rtcCount = aTextContainers.Length();
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mFrames.SetCapacity(rtcCount + 1);
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mFrames.AppendElement(aBaseContainer->GetFirstPrincipalChild());
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for (uint32_t i = 0; i < rtcCount; i++) {
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nsRubyTextContainerFrame* container = aTextContainers[i];
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// If the container is for span, leave a nullptr here.
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// Spans do not take part in pairing.
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nsIFrame* rtFrame = !container->IsSpanContainer() ?
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aTextContainers[i]->GetFirstPrincipalChild() : nullptr;
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mFrames.AppendElement(rtFrame);
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}
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}
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void
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RubyColumnEnumerator::Next()
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{
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for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
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if (mFrames[i]) {
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mFrames[i] = mFrames[i]->GetNextSibling();
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}
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}
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}
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bool
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RubyColumnEnumerator::AtEnd() const
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{
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for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
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if (mFrames[i]) {
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return false;
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}
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}
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return true;
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}
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void
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RubyColumnEnumerator::GetColumn(RubyColumn& aColumn) const
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{
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aColumn.mBaseFrame = mFrames[0];
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aColumn.mTextFrames.ClearAndRetainStorage();
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for (uint32_t i = 1, iend = mFrames.Length(); i < iend; i++) {
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aColumn.mTextFrames.AppendElement(mFrames[i]);
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}
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}
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static nscoord
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CalculateColumnPrefISize(nsRenderingContext* aRenderingContext,
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const RubyColumnEnumerator& aEnumerator)
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{
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nscoord max = 0;
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uint32_t levelCount = aEnumerator.GetLevelCount();
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for (uint32_t i = 0; i < levelCount; i++) {
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nsIFrame* frame = aEnumerator.GetFrame(i);
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if (frame) {
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max = std::max(max, frame->GetPrefISize(aRenderingContext));
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}
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}
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return max;
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}
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/* virtual */ void
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nsRubyBaseContainerFrame::AddInlineMinISize(
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nsRenderingContext *aRenderingContext, nsIFrame::InlineMinISizeData *aData)
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{
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AutoTextContainerArray textContainers;
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GetTextContainers(textContainers);
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for (uint32_t i = 0, iend = textContainers.Length(); i < iend; i++) {
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if (textContainers[i]->IsSpanContainer()) {
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// Since spans are not breakable internally, use our pref isize
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// directly if there is any span.
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aData->currentLine += GetPrefISize(aRenderingContext);
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return;
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}
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}
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nscoord max = 0;
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RubyColumnEnumerator enumerator(this, textContainers);
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for (; !enumerator.AtEnd(); enumerator.Next()) {
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// We use *pref* isize for computing the min isize of columns
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// because ruby bases and texts are unbreakable internally.
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max = std::max(max, CalculateColumnPrefISize(aRenderingContext,
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enumerator));
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}
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aData->currentLine += max;
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}
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/* virtual */ void
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nsRubyBaseContainerFrame::AddInlinePrefISize(
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nsRenderingContext *aRenderingContext, nsIFrame::InlinePrefISizeData *aData)
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{
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AutoTextContainerArray textContainers;
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GetTextContainers(textContainers);
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nscoord sum = 0;
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RubyColumnEnumerator enumerator(this, textContainers);
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for (; !enumerator.AtEnd(); enumerator.Next()) {
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sum += CalculateColumnPrefISize(aRenderingContext, enumerator);
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}
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for (uint32_t i = 0, iend = textContainers.Length(); i < iend; i++) {
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if (textContainers[i]->IsSpanContainer()) {
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nsIFrame* frame = textContainers[i]->GetFirstPrincipalChild();
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sum = std::max(sum, frame->GetPrefISize(aRenderingContext));
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}
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}
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aData->currentLine += sum;
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}
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/* virtual */ bool
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nsRubyBaseContainerFrame::IsFrameOfType(uint32_t aFlags) const
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{
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return nsContainerFrame::IsFrameOfType(aFlags &
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~(nsIFrame::eLineParticipant));
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}
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void
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nsRubyBaseContainerFrame::GetTextContainers(TextContainerArray& aTextContainers)
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{
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MOZ_ASSERT(aTextContainers.IsEmpty());
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for (RubyTextContainerIterator iter(this); !iter.AtEnd(); iter.Next()) {
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aTextContainers.AppendElement(iter.GetTextContainer());
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}
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}
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/* virtual */ bool
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nsRubyBaseContainerFrame::CanContinueTextRun() const
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{
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return true;
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}
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/* virtual */ LogicalSize
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nsRubyBaseContainerFrame::ComputeSize(nsRenderingContext *aRenderingContext,
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WritingMode aWM,
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const LogicalSize& aCBSize,
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nscoord aAvailableISize,
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const LogicalSize& aMargin,
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const LogicalSize& aBorder,
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const LogicalSize& aPadding,
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ComputeSizeFlags aFlags)
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{
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// Ruby base container frame is inline,
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// hence don't compute size before reflow.
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return LogicalSize(aWM, NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE);
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}
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/* virtual */ nscoord
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nsRubyBaseContainerFrame::GetLogicalBaseline(WritingMode aWritingMode) const
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{
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return mBaseline;
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}
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struct nsRubyBaseContainerFrame::ReflowState
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{
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bool mAllowLineBreak;
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const TextContainerArray& mTextContainers;
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const nsHTMLReflowState& mBaseReflowState;
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const nsTArray<UniquePtr<nsHTMLReflowState>>& mTextReflowStates;
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};
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// Check whether the given extra isize can fit in the line in base level.
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static bool
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ShouldBreakBefore(const nsHTMLReflowState& aReflowState, nscoord aExtraISize)
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{
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nsLineLayout* lineLayout = aReflowState.mLineLayout;
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int32_t offset;
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gfxBreakPriority priority;
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nscoord icoord = lineLayout->GetCurrentICoord();
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return icoord + aExtraISize > aReflowState.AvailableISize() &&
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lineLayout->GetLastOptionalBreakPosition(&offset, &priority);
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}
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/* virtual */ void
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nsRubyBaseContainerFrame::Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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DO_GLOBAL_REFLOW_COUNT("nsRubyBaseContainerFrame");
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DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
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aStatus = NS_FRAME_COMPLETE;
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if (!aReflowState.mLineLayout) {
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NS_ASSERTION(
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aReflowState.mLineLayout,
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"No line layout provided to RubyBaseContainerFrame reflow method.");
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return;
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}
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MOZ_ASSERT(aReflowState.mRubyReflowState, "No ruby reflow state provided");
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AutoTextContainerArray textContainers;
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GetTextContainers(textContainers);
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MoveOverflowToChildList();
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// Ask text containers to drain overflows
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const uint32_t rtcCount = textContainers.Length();
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for (uint32_t i = 0; i < rtcCount; i++) {
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textContainers[i]->MoveOverflowToChildList();
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}
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WritingMode lineWM = aReflowState.mLineLayout->GetWritingMode();
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LogicalSize availSize(lineWM, aReflowState.AvailableWidth(),
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aReflowState.AvailableHeight());
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// We have a reflow state and a line layout for each RTC.
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// They are conceptually the state of the RTCs, but we don't actually
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// reflow those RTCs in this code. These two arrays are holders of
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// the reflow states and line layouts.
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// Since there are pointers refer to reflow states and line layouts,
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// it is necessary to guarantee that they won't be moved. For this
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// reason, they are wrapped in UniquePtr here.
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nsAutoTArray<UniquePtr<nsHTMLReflowState>, RTC_ARRAY_SIZE> reflowStates;
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nsAutoTArray<UniquePtr<nsLineLayout>, RTC_ARRAY_SIZE> lineLayouts;
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reflowStates.SetCapacity(rtcCount);
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lineLayouts.SetCapacity(rtcCount);
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// Begin the line layout for each ruby text container in advance.
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bool hasSpan = false;
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for (uint32_t i = 0; i < rtcCount; i++) {
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nsRubyTextContainerFrame* textContainer = textContainers[i];
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if (textContainer->IsSpanContainer()) {
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hasSpan = true;
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}
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nsHTMLReflowState* reflowState = new nsHTMLReflowState(
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aPresContext, *aReflowState.parentReflowState, textContainer, availSize);
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reflowStates.AppendElement(reflowState);
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nsLineLayout* lineLayout = new nsLineLayout(aPresContext,
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reflowState->mFloatManager,
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reflowState, nullptr,
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aReflowState.mLineLayout);
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lineLayouts.AppendElement(lineLayout);
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// Line number is useless for ruby text
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// XXX nullptr here may cause problem, see comments for
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// nsLineLayout::mBlockRS and nsLineLayout::AddFloat
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lineLayout->Init(nullptr, reflowState->CalcLineHeight(), -1);
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reflowState->mLineLayout = lineLayout;
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LogicalMargin borderPadding = reflowState->ComputedLogicalBorderPadding();
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nscoord containerWidth =
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reflowState->ComputedWidth() + borderPadding.LeftRight(lineWM);
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lineLayout->BeginLineReflow(borderPadding.IStart(lineWM),
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borderPadding.BStart(lineWM),
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reflowState->ComputedISize(),
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NS_UNCONSTRAINEDSIZE,
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false, false, lineWM, containerWidth);
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lineLayout->AttachRootFrameToBaseLineLayout();
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}
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WritingMode frameWM = aReflowState.GetWritingMode();
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LogicalMargin borderPadding = aReflowState.ComputedLogicalBorderPadding();
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nscoord startEdge = borderPadding.IStart(frameWM);
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nscoord endEdge = aReflowState.AvailableISize() - borderPadding.IEnd(frameWM);
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aReflowState.mLineLayout->BeginSpan(this, &aReflowState,
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startEdge, endEdge, &mBaseline);
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nsIFrame* parent = GetParent();
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bool inNestedRuby = parent->StyleContext()->IsInlineDescendantOfRuby();
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// Allow line break between ruby bases when white-space allows,
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// we are not inside a nested ruby, and there is no span.
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bool allowLineBreak = !inNestedRuby && StyleText()->WhiteSpaceCanWrap(this);
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bool allowInitialLineBreak = allowLineBreak;
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if (!GetPrevInFlow()) {
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allowInitialLineBreak = !inNestedRuby &&
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parent->StyleText()->WhiteSpaceCanWrap(parent);
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}
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if (allowInitialLineBreak && aReflowState.mLineLayout->LineIsBreakable() &&
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aReflowState.mLineLayout->NotifyOptionalBreakPosition(
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this, 0, startEdge <= aReflowState.AvailableISize(),
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gfxBreakPriority::eNormalBreak)) {
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aStatus = NS_INLINE_LINE_BREAK_BEFORE();
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}
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nscoord isize = 0;
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if (aStatus == NS_FRAME_COMPLETE) {
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// Reflow columns excluding any span
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ReflowState reflowState = {
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allowLineBreak && !hasSpan, textContainers, aReflowState, reflowStates
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};
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isize = ReflowColumns(reflowState, aStatus);
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}
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// If there exists any span, the columns must either be completely
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// reflowed, or be not reflowed at all.
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MOZ_ASSERT(NS_INLINE_IS_BREAK_BEFORE(aStatus) ||
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NS_FRAME_IS_COMPLETE(aStatus) || !hasSpan);
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if (!NS_INLINE_IS_BREAK_BEFORE(aStatus) &&
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NS_FRAME_IS_COMPLETE(aStatus) && hasSpan) {
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// Reflow spans
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ReflowState reflowState = {
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false, textContainers, aReflowState, reflowStates
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};
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nscoord spanISize = ReflowSpans(reflowState);
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nscoord deltaISize = spanISize - isize;
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if (deltaISize <= 0) {
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RubyUtils::ClearReservedISize(this);
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} else if (allowLineBreak && ShouldBreakBefore(aReflowState, deltaISize)) {
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aStatus = NS_INLINE_LINE_BREAK_BEFORE();
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} else {
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RubyUtils::SetReservedISize(this, deltaISize);
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aReflowState.mLineLayout->AdvanceICoord(deltaISize);
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isize = spanISize;
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}
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// When there are spans, ReflowColumns and ReflowOneColumn won't
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// record any optional break position. We have to record one
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// at the end of this segment.
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if (!NS_INLINE_IS_BREAK(aStatus) && allowLineBreak &&
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aReflowState.mLineLayout->NotifyOptionalBreakPosition(
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this, INT32_MAX, startEdge + isize <= aReflowState.AvailableISize(),
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gfxBreakPriority::eNormalBreak)) {
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aStatus = NS_INLINE_LINE_BREAK_AFTER(aStatus);
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}
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}
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DebugOnly<nscoord> lineSpanSize = aReflowState.mLineLayout->EndSpan(this);
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// When there are no frames inside the ruby base container, EndSpan
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// will return 0. However, in this case, the actual width of the
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// container could be non-zero because of non-empty ruby annotations.
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MOZ_ASSERT(NS_INLINE_IS_BREAK_BEFORE(aStatus) ||
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isize == lineSpanSize || mFrames.IsEmpty());
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for (uint32_t i = 0; i < rtcCount; i++) {
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// It happens before the ruby text container is reflowed, and that
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// when it is reflowed, it will just use this size.
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nsRubyTextContainerFrame* textContainer = textContainers[i];
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nsLineLayout* lineLayout = lineLayouts[i].get();
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RubyUtils::ClearReservedISize(textContainer);
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nscoord rtcISize = lineLayout->GetCurrentICoord();
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// Only span containers and containers with collapsed annotations
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// need reserving isize. For normal ruby text containers, their
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// children will be expanded properly. We only need to expand their
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// own size.
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if (!textContainer->IsSpanContainer()) {
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rtcISize = isize;
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} else if (isize > rtcISize) {
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RubyUtils::SetReservedISize(textContainer, isize - rtcISize);
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}
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lineLayout->VerticalAlignLine();
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LogicalSize lineSize(lineWM, isize, lineLayout->GetFinalLineBSize());
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textContainer->SetLineSize(lineSize);
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aReflowState.mRubyReflowState->SetTextContainerInfo(i, textContainer);
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lineLayout->EndLineReflow();
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}
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aDesiredSize.ISize(lineWM) = isize;
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nsLayoutUtils::SetBSizeFromFontMetrics(this, aDesiredSize, aReflowState,
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borderPadding, lineWM, frameWM);
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}
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/**
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* This struct stores the continuations after this frame and
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* corresponding text containers. It is used to speed up looking
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* ahead for nonempty continuations.
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*/
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struct MOZ_STACK_CLASS nsRubyBaseContainerFrame::PullFrameState
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{
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ContinuationTraversingState mBase;
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nsAutoTArray<ContinuationTraversingState, RTC_ARRAY_SIZE> mTexts;
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const TextContainerArray& mTextContainers;
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PullFrameState(nsRubyBaseContainerFrame* aBaseContainer,
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const TextContainerArray& aTextContainers);
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};
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nscoord
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nsRubyBaseContainerFrame::ReflowColumns(const ReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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nsLineLayout* lineLayout = aReflowState.mBaseReflowState.mLineLayout;
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const uint32_t rtcCount = aReflowState.mTextContainers.Length();
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nscoord istart = lineLayout->GetCurrentICoord();
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nscoord icoord = istart;
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nsReflowStatus reflowStatus = NS_FRAME_COMPLETE;
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aStatus = NS_FRAME_COMPLETE;
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uint32_t columnIndex = 0;
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RubyColumn column;
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column.mTextFrames.SetCapacity(rtcCount);
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RubyColumnEnumerator e(this, aReflowState.mTextContainers);
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for (; !e.AtEnd(); e.Next()) {
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e.GetColumn(column);
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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;
|
|
}
|