void nsInlineFrame::ReflowInlineFrame(nsPresContext* aPresContext, const ReflowInput& aReflowInput, InlineReflowInput& irs, nsIFrame* aFrame, nsReflowStatus& aStatus) { nsLineLayout* lineLayout = aReflowInput.mLineLayout; bool reflowingFirstLetter = lineLayout->GetFirstLetterStyleOK(); bool pushedFrame; aStatus.Reset(); lineLayout->ReflowFrame(aFrame, aStatus, nullptr, pushedFrame); if (aStatus.IsInlineBreakBefore()) { if (aFrame != mFrames.FirstChild()) { // Change break-before status into break-after since we have // already placed at least one child frame. This preserves the // break-type so that it can be propagated upward. StyleClear oldBreakType = aStatus.BreakType(); aStatus.Reset(); aStatus.SetIncomplete(); aStatus.SetInlineLineBreakAfter(oldBreakType); PushFrames(aPresContext, aFrame, irs.mPrevFrame, irs); } else { // Preserve reflow status when breaking-before our first child // and propagate it upward without modification. } return; } // Create a next-in-flow if needed. if (!aStatus.IsFullyComplete()) { CreateNextInFlow(aFrame); } if (aStatus.IsInlineBreakAfter()) { nsIFrame* nextFrame = aFrame->GetNextSibling(); if (nextFrame) { aStatus.SetIncomplete(); PushFrames(aPresContext, nextFrame, aFrame, irs); } else { // We must return an incomplete status if there are more child // frames remaining in a next-in-flow that follows this frame. nsInlineFrame* nextInFlow = static_cast<nsInlineFrame*>(GetNextInFlow()); while (nextInFlow) { if (nextInFlow->mFrames.NotEmpty()) { aStatus.SetIncomplete(); break; } nextInFlow = static_cast<nsInlineFrame*>(nextInFlow->GetNextInFlow()); } } return; } if (!aStatus.IsFullyComplete() && !reflowingFirstLetter) { nsIFrame* nextFrame = aFrame->GetNextSibling(); if (nextFrame) { PushFrames(aPresContext, nextFrame, aFrame, irs); } } }
void nsTableCellFrame::Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize, const ReflowInput& aReflowInput, nsReflowStatus& aStatus) { MarkInReflow(); DO_GLOBAL_REFLOW_COUNT("nsTableCellFrame"); DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus); if (aReflowInput.mFlags.mSpecialBSizeReflow) { FirstInFlow()->AddStateBits(NS_TABLE_CELL_HAD_SPECIAL_REFLOW); } // see if a special bsize reflow needs to occur due to having a pct height nsTableFrame::CheckRequestSpecialBSizeReflow(aReflowInput); aStatus.Reset(); WritingMode wm = aReflowInput.GetWritingMode(); LogicalSize availSize(wm, aReflowInput.AvailableISize(), aReflowInput.AvailableBSize()); LogicalMargin borderPadding = aReflowInput.ComputedLogicalPadding(); LogicalMargin border = GetBorderWidth(wm); borderPadding += border; // reduce available space by insets, if we're in a constrained situation availSize.ISize(wm) -= borderPadding.IStartEnd(wm); if (NS_UNCONSTRAINEDSIZE != availSize.BSize(wm)) { availSize.BSize(wm) -= borderPadding.BStartEnd(wm); } // Try to reflow the child into the available space. It might not // fit or might need continuing. if (availSize.BSize(wm) < 0) { availSize.BSize(wm) = 1; } ReflowOutput kidSize(wm, aDesiredSize.mFlags); kidSize.ClearSize(); SetPriorAvailISize(aReflowInput.AvailableISize()); nsIFrame* firstKid = mFrames.FirstChild(); NS_ASSERTION(firstKid, "Frame construction error, a table cell always has an inner cell frame"); nsTableFrame* tableFrame = GetTableFrame(); if (aReflowInput.mFlags.mSpecialBSizeReflow) { const_cast<ReflowInput&>(aReflowInput). SetComputedBSize(BSize(wm) - borderPadding.BStartEnd(wm)); DISPLAY_REFLOW_CHANGE(); } else if (aPresContext->IsPaginated()) { nscoord computedUnpaginatedBSize = CalcUnpaginatedBSize((nsTableCellFrame&)*this, *tableFrame, borderPadding.BStartEnd(wm)); if (computedUnpaginatedBSize > 0) { const_cast<ReflowInput&>(aReflowInput).SetComputedBSize(computedUnpaginatedBSize); DISPLAY_REFLOW_CHANGE(); } } else { SetHasPctOverBSize(false); } WritingMode kidWM = firstKid->GetWritingMode(); ReflowInput kidReflowInput(aPresContext, aReflowInput, firstKid, availSize.ConvertTo(kidWM, wm)); // Don't be a percent height observer if we're in the middle of // special-bsize reflow, in case we get an accidental NotifyPercentBSize() // call (which we shouldn't honor during special-bsize reflow) if (!aReflowInput.mFlags.mSpecialBSizeReflow) { // mPercentBSizeObserver is for children of cells in quirks mode, // but only those than are tables in standards mode. NeedsToObserve // will determine how far this is propagated to descendants. kidReflowInput.mPercentBSizeObserver = this; } // Don't propagate special bsize reflow state to our kids kidReflowInput.mFlags.mSpecialBSizeReflow = false; if (aReflowInput.mFlags.mSpecialBSizeReflow || FirstInFlow()->HasAnyStateBits(NS_TABLE_CELL_HAD_SPECIAL_REFLOW)) { // We need to force the kid to have mBResize set if we've had a // special reflow in the past, since the non-special reflow needs to // resize back to what it was without the special bsize reflow. kidReflowInput.SetBResize(true); } nsSize containerSize = aReflowInput.ComputedSizeAsContainerIfConstrained(); LogicalPoint kidOrigin(wm, borderPadding.IStart(wm), borderPadding.BStart(wm)); nsRect origRect = firstKid->GetRect(); nsRect origVisualOverflow = firstKid->GetVisualOverflowRect(); bool firstReflow = firstKid->HasAnyStateBits(NS_FRAME_FIRST_REFLOW); ReflowChild(firstKid, aPresContext, kidSize, kidReflowInput, wm, kidOrigin, containerSize, 0, aStatus); if (aStatus.IsOverflowIncomplete()) { // Don't pass OVERFLOW_INCOMPLETE through tables until they can actually handle it //XXX should paginate overflow as overflow, but not in this patch (bug 379349) aStatus.SetIncomplete(); printf("Set table cell incomplete %p\n", static_cast<void*>(this)); } // XXXbz is this invalidate actually needed, really? if (HasAnyStateBits(NS_FRAME_IS_DIRTY)) { InvalidateFrameSubtree(); } #ifdef DEBUG DebugCheckChildSize(firstKid, kidSize); #endif // 0 dimensioned cells need to be treated specially in Standard/NavQuirks mode // see testcase "emptyCells.html" nsIFrame* prevInFlow = GetPrevInFlow(); bool isEmpty; if (prevInFlow) { isEmpty = static_cast<nsTableCellFrame*>(prevInFlow)->GetContentEmpty(); } else { isEmpty = !CellHasVisibleContent(kidSize.Height(), tableFrame, firstKid); } SetContentEmpty(isEmpty); // Place the child FinishReflowChild(firstKid, aPresContext, kidSize, &kidReflowInput, wm, kidOrigin, containerSize, 0); nsTableFrame::InvalidateTableFrame(firstKid, origRect, origVisualOverflow, firstReflow); // first, compute the bsize which can be set w/o being restricted by // available bsize LogicalSize cellSize(wm); cellSize.BSize(wm) = kidSize.BSize(wm); if (NS_UNCONSTRAINEDSIZE != cellSize.BSize(wm)) { cellSize.BSize(wm) += borderPadding.BStartEnd(wm); } // next determine the cell's isize cellSize.ISize(wm) = kidSize.ISize(wm); // at this point, we've factored in the cell's style attributes // factor in border and padding if (NS_UNCONSTRAINEDSIZE != cellSize.ISize(wm)) { cellSize.ISize(wm) += borderPadding.IStartEnd(wm); } // set the cell's desired size and max element size aDesiredSize.SetSize(wm, cellSize); // the overflow area will be computed when BlockDirAlignChild() gets called if (aReflowInput.mFlags.mSpecialBSizeReflow) { if (aDesiredSize.BSize(wm) > BSize(wm)) { // set a bit indicating that the pct bsize contents exceeded // the height that they could honor in the pass 2 reflow SetHasPctOverBSize(true); } if (NS_UNCONSTRAINEDSIZE == aReflowInput.AvailableBSize()) { aDesiredSize.BSize(wm) = BSize(wm); } } // If our parent is in initial reflow, it'll handle invalidating our // entire overflow rect. if (!GetParent()->HasAnyStateBits(NS_FRAME_FIRST_REFLOW) && nsSize(aDesiredSize.Width(), aDesiredSize.Height()) != mRect.Size()) { InvalidateFrame(); } // remember the desired size for this reflow SetDesiredSize(aDesiredSize); // Any absolutely-positioned children will get reflowed in // nsFrame::FixupPositionedTableParts in another pass, so propagate our // dirtiness to them before our parent clears our dirty bits. PushDirtyBitToAbsoluteFrames(); NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize); }
void nsInlineFrame::ReflowFrames(nsPresContext* aPresContext, const ReflowInput& aReflowInput, InlineReflowInput& irs, ReflowOutput& aMetrics, nsReflowStatus& aStatus) { MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!"); nsLineLayout* lineLayout = aReflowInput.mLineLayout; bool inFirstLine = aReflowInput.mLineLayout->GetInFirstLine(); RestyleManager* restyleManager = aPresContext->RestyleManager(); WritingMode frameWM = aReflowInput.GetWritingMode(); WritingMode lineWM = aReflowInput.mLineLayout->mRootSpan->mWritingMode; LogicalMargin framePadding = aReflowInput.ComputedLogicalBorderPadding(); nscoord startEdge = 0; const bool boxDecorationBreakClone = MOZ_UNLIKELY(StyleBorder()->mBoxDecorationBreak == StyleBoxDecorationBreak::Clone); // Don't offset by our start borderpadding if we have a prev continuation or // if we're in a part of an {ib} split other than the first one. For // box-decoration-break:clone we always offset our start since all // continuations have border/padding. if ((!GetPrevContinuation() && !FrameIsNonFirstInIBSplit()) || boxDecorationBreakClone) { startEdge = framePadding.IStart(frameWM); } nscoord availableISize = aReflowInput.AvailableISize(); NS_ASSERTION(availableISize != NS_UNCONSTRAINEDSIZE, "should no longer use available widths"); // Subtract off inline axis border+padding from availableISize availableISize -= startEdge; availableISize -= framePadding.IEnd(frameWM); lineLayout->BeginSpan(this, &aReflowInput, startEdge, startEdge + availableISize, &mBaseline); // First reflow our principal children. nsIFrame* frame = mFrames.FirstChild(); bool done = false; while (frame) { // Check if we should lazily set the child frame's parent pointer. if (irs.mSetParentPointer) { nsIFrame* child = frame; do { child->SetParent(this); if (inFirstLine) { restyleManager->ReparentStyleContext(child); nsLayoutUtils::MarkDescendantsDirty(child); } // We also need to do the same for |frame|'s next-in-flows that are in // the sibling list. Otherwise, if we reflow |frame| and it's complete // we'll crash when trying to delete its next-in-flow. // This scenario doesn't happen often, but it can happen. nsIFrame* nextSibling = child->GetNextSibling(); child = child->GetNextInFlow(); if (MOZ_UNLIKELY(child)) { while (child != nextSibling && nextSibling) { nextSibling = nextSibling->GetNextSibling(); } if (!nextSibling) { child = nullptr; } } MOZ_ASSERT(!child || mFrames.ContainsFrame(child)); } while (child); // Fix the parent pointer for ::first-letter child frame next-in-flows, // so nsFirstLetterFrame::Reflow can destroy them safely (bug 401042). nsIFrame* realFrame = nsPlaceholderFrame::GetRealFrameFor(frame); if (realFrame->IsLetterFrame()) { nsIFrame* child = realFrame->PrincipalChildList().FirstChild(); if (child) { NS_ASSERTION(child->IsTextFrame(), "unexpected frame type"); nsIFrame* nextInFlow = child->GetNextInFlow(); for ( ; nextInFlow; nextInFlow = nextInFlow->GetNextInFlow()) { NS_ASSERTION(nextInFlow->IsTextFrame(), "unexpected frame type"); if (mFrames.ContainsFrame(nextInFlow)) { nextInFlow->SetParent(this); if (inFirstLine) { restyleManager->ReparentStyleContext(nextInFlow); nsLayoutUtils::MarkDescendantsDirty(nextInFlow); } } else { #ifdef DEBUG // Once we find a next-in-flow that isn't ours none of the // remaining next-in-flows should be either. for ( ; nextInFlow; nextInFlow = nextInFlow->GetNextInFlow()) { NS_ASSERTION(!mFrames.ContainsFrame(nextInFlow), "unexpected letter frame flow"); } #endif break; } } } } } MOZ_ASSERT(frame->GetParent() == this); if (!done) { bool reflowingFirstLetter = lineLayout->GetFirstLetterStyleOK(); ReflowInlineFrame(aPresContext, aReflowInput, irs, frame, aStatus); done = aStatus.IsInlineBreak() || (!reflowingFirstLetter && aStatus.IsIncomplete()); if (done) { if (!irs.mSetParentPointer) { break; } // Keep reparenting the remaining siblings, but don't reflow them. nsFrameList* pushedFrames = GetOverflowFrames(); if (pushedFrames && pushedFrames->FirstChild() == frame) { // Don't bother if |frame| was pushed to our overflow list. break; } } else { irs.mPrevFrame = frame; } } frame = frame->GetNextSibling(); } // Attempt to pull frames from our next-in-flow until we can't if (!done && GetNextInFlow()) { while (true) { bool reflowingFirstLetter = lineLayout->GetFirstLetterStyleOK(); bool isComplete; if (!frame) { // Could be non-null if we pulled a first-letter frame and // it created a continuation, since we don't push those. frame = PullOneFrame(aPresContext, irs, &isComplete); } #ifdef NOISY_PUSHING printf("%p pulled up %p\n", this, frame); #endif if (nullptr == frame) { if (!isComplete) { aStatus.Reset(); aStatus.SetIncomplete(); } break; } ReflowInlineFrame(aPresContext, aReflowInput, irs, frame, aStatus); if (aStatus.IsInlineBreak() || (!reflowingFirstLetter && aStatus.IsIncomplete())) { break; } irs.mPrevFrame = frame; frame = frame->GetNextSibling(); } } NS_ASSERTION(!aStatus.IsComplete() || !GetOverflowFrames(), "We can't be complete AND have overflow frames!"); // If after reflowing our children they take up no area then make // sure that we don't either. // // Note: CSS demands that empty inline elements still affect the // line-height calculations. However, continuations of an inline // that are empty we force to empty so that things like collapsed // whitespace in an inline element don't affect the line-height. aMetrics.ISize(lineWM) = lineLayout->EndSpan(this); // Compute final width. // XXX Note that that the padding start and end are in the frame's // writing mode, but the metrics' inline-size is in the line's // writing mode. This makes sense if the line and frame are both // vertical or both horizontal, but what should happen with // orthogonal inlines? // Make sure to not include our start border and padding if we have a prev // continuation or if we're in a part of an {ib} split other than the first // one. For box-decoration-break:clone we always include our start border // and padding since all continuations have them. if ((!GetPrevContinuation() && !FrameIsNonFirstInIBSplit()) || boxDecorationBreakClone) { aMetrics.ISize(lineWM) += framePadding.IStart(frameWM); } /* * We want to only apply the end border and padding if we're the last * continuation and either not in an {ib} split or the last part of it. To * be the last continuation we have to be complete (so that we won't get a * next-in-flow) and have no non-fluid continuations on our continuation * chain. For box-decoration-break:clone we always apply the end border and * padding since all continuations have them. */ if ((aStatus.IsComplete() && !LastInFlow()->GetNextContinuation() && !FrameIsNonLastInIBSplit()) || boxDecorationBreakClone) { aMetrics.ISize(lineWM) += framePadding.IEnd(frameWM); } nsLayoutUtils::SetBSizeFromFontMetrics(this, aMetrics, framePadding, lineWM, frameWM); // For now our overflow area is zero. The real value will be // computed in |nsLineLayout::RelativePositionFrames|. aMetrics.mOverflowAreas.Clear(); #ifdef NOISY_FINAL_SIZE ListTag(stdout); printf(": metrics=%d,%d ascent=%d\n", aMetrics.Width(), aMetrics.Height(), aMetrics.TopAscent()); #endif }
void nsRubyFrame::ReflowSegment(nsPresContext* aPresContext, const ReflowInput& aReflowInput, nsRubyBaseContainerFrame* aBaseContainer, nsReflowStatus& aStatus) { WritingMode lineWM = aReflowInput.mLineLayout->GetWritingMode(); LogicalSize availSize(lineWM, aReflowInput.AvailableISize(), aReflowInput.AvailableBSize()); WritingMode rubyWM = GetWritingMode(); NS_ASSERTION(!rubyWM.IsOrthogonalTo(lineWM), "Ruby frame writing-mode shouldn't be orthogonal to its line"); AutoRubyTextContainerArray textContainers(aBaseContainer); const uint32_t rtcCount = textContainers.Length(); ReflowOutput baseMetrics(aReflowInput); bool pushedFrame; aReflowInput.mLineLayout->ReflowFrame(aBaseContainer, aStatus, &baseMetrics, pushedFrame); if (aStatus.IsInlineBreakBefore()) { if (aBaseContainer != mFrames.FirstChild()) { // Some segments may have been reflowed before, hence it is not // a break-before for the ruby container. aStatus.Reset(); aStatus.SetInlineLineBreakAfter(); aStatus.SetIncomplete(); PushChildrenToOverflow(aBaseContainer, aBaseContainer->GetPrevSibling()); aReflowInput.mLineLayout->SetDirtyNextLine(); } // This base container is not placed at all, we can skip all // text containers paired with it. return; } if (aStatus.IsIncomplete()) { // It always promise that if the status is incomplete, there is a // break occurs. Break before has been processed above. However, // it is possible that break after happens with the frame reflow // completed. It happens if there is a force break at the end. MOZ_ASSERT(aStatus.IsInlineBreakAfter()); // Find the previous sibling which we will // insert new continuations after. nsIFrame* lastChild; if (rtcCount > 0) { lastChild = textContainers.LastElement(); } else { lastChild = aBaseContainer; } // Create continuations for the base container nsIFrame* newBaseContainer = CreateNextInFlow(aBaseContainer); // newBaseContainer is null if there are existing next-in-flows. // We only need to move and push if there were not. if (newBaseContainer) { // Move the new frame after all the text containers mFrames.RemoveFrame(newBaseContainer); mFrames.InsertFrame(nullptr, lastChild, newBaseContainer); // Create continuations for text containers nsIFrame* newLastChild = newBaseContainer; for (uint32_t i = 0; i < rtcCount; i++) { nsIFrame* newTextContainer = CreateNextInFlow(textContainers[i]); MOZ_ASSERT(newTextContainer, "Next-in-flow of rtc should not exist " "if the corresponding rbc does not"); mFrames.RemoveFrame(newTextContainer); mFrames.InsertFrame(nullptr, newLastChild, newTextContainer); newLastChild = newTextContainer; } } if (lastChild != mFrames.LastChild()) { // Always push the next frame after the last child in this segment. // It is possible that we pulled it back before our next-in-flow // drain our overflow. PushChildrenToOverflow(lastChild->GetNextSibling(), lastChild); aReflowInput.mLineLayout->SetDirtyNextLine(); } } else { // If the ruby base container is reflowed completely, the line // layout will remove the next-in-flows of that frame. But the // line layout is not aware of the ruby text containers, hence // it is necessary to remove them here. for (uint32_t i = 0; i < rtcCount; i++) { nsIFrame* nextRTC = textContainers[i]->GetNextInFlow(); if (nextRTC) { nextRTC->GetParent()->DeleteNextInFlowChild(nextRTC, true); } } } nscoord segmentISize = baseMetrics.ISize(lineWM); const nsSize dummyContainerSize; LogicalRect baseRect = aBaseContainer->GetLogicalRect(lineWM, dummyContainerSize); // We need to position our rtc frames on one side or the other of the // base container's rect, using a coordinate space that's relative to // the ruby frame. Right now, the base container's rect's block-axis // position is relative to the block container frame containing the // lines, so we use 0 instead. (i.e. we assume that the base container // is adjacent to the ruby frame's block-start edge.) // XXX We may need to add border/padding here. See bug 1055667. baseRect.BStart(lineWM) = 0; // The rect for offsets of text containers. LogicalRect offsetRect = baseRect; RubyBlockLeadings descLeadings = aBaseContainer->GetDescendantLeadings(); offsetRect.BStart(lineWM) -= descLeadings.mStart; offsetRect.BSize(lineWM) += descLeadings.mStart + descLeadings.mEnd; for (uint32_t i = 0; i < rtcCount; i++) { nsRubyTextContainerFrame* textContainer = textContainers[i]; WritingMode rtcWM = textContainer->GetWritingMode(); nsReflowStatus textReflowStatus; ReflowOutput textMetrics(aReflowInput); ReflowInput textReflowInput(aPresContext, aReflowInput, textContainer, availSize.ConvertTo(rtcWM, lineWM)); textContainer->Reflow(aPresContext, textMetrics, textReflowInput, textReflowStatus); // Ruby text containers always return complete reflow status even when // they have continuations, because the breaking has already been // handled when reflowing the base containers. NS_ASSERTION(textReflowStatus.IsEmpty(), "Ruby text container must not break itself inside"); // The metrics is initialized with reflow state of this ruby frame, // hence the writing-mode is tied to rubyWM instead of rtcWM. LogicalSize size = textMetrics.Size(rubyWM).ConvertTo(lineWM, rubyWM); textContainer->SetSize(lineWM, size); nscoord reservedISize = RubyUtils::GetReservedISize(textContainer); segmentISize = std::max(segmentISize, size.ISize(lineWM) + reservedISize); uint8_t rubyPosition = textContainer->StyleText()->mRubyPosition; MOZ_ASSERT(rubyPosition == NS_STYLE_RUBY_POSITION_OVER || rubyPosition == NS_STYLE_RUBY_POSITION_UNDER); Maybe<LogicalSide> side; if (rubyPosition == NS_STYLE_RUBY_POSITION_OVER) { side.emplace(lineWM.LogicalSideForLineRelativeDir(eLineRelativeDirOver)); } else if (rubyPosition == NS_STYLE_RUBY_POSITION_UNDER) { side.emplace(lineWM.LogicalSideForLineRelativeDir(eLineRelativeDirUnder)); } else { // XXX inter-character support in bug 1055672 MOZ_ASSERT_UNREACHABLE("Unsupported ruby-position"); } LogicalPoint position(lineWM); if (side.isSome()) { if (nsLayoutUtils::IsInterCharacterRubyEnabled() && rtcWM.IsVerticalRL() && lineWM.GetInlineDir() == WritingMode::eInlineLTR) { // Inter-character ruby annotations are only supported for vertical-rl // in ltr horizontal writing. Fall back to non-inter-character behavior // otherwise. LogicalPoint offset(lineWM, offsetRect.ISize(lineWM), offsetRect.BSize(lineWM) > size.BSize(lineWM) ? (offsetRect.BSize(lineWM) - size.BSize(lineWM)) / 2 : 0); position = offsetRect.Origin(lineWM) + offset; aReflowInput.mLineLayout->AdvanceICoord(size.ISize(lineWM)); } else if (side.value() == eLogicalSideBStart) { offsetRect.BStart(lineWM) -= size.BSize(lineWM); offsetRect.BSize(lineWM) += size.BSize(lineWM); position = offsetRect.Origin(lineWM); } else if (side.value() == eLogicalSideBEnd) { position = offsetRect.Origin(lineWM) + LogicalPoint(lineWM, 0, offsetRect.BSize(lineWM)); offsetRect.BSize(lineWM) += size.BSize(lineWM); } else { MOZ_ASSERT_UNREACHABLE("???"); } } // Using a dummy container-size here, so child positioning may not be // correct. We will fix it in nsLineLayout after the whole line is // reflowed. FinishReflowChild(textContainer, aPresContext, textMetrics, &textReflowInput, lineWM, position, dummyContainerSize, 0); } MOZ_ASSERT(baseRect.ISize(lineWM) == offsetRect.ISize(lineWM), "Annotations should only be placed on the block directions"); nscoord deltaISize = segmentISize - baseMetrics.ISize(lineWM); if (deltaISize <= 0) { RubyUtils::ClearReservedISize(aBaseContainer); } else { RubyUtils::SetReservedISize(aBaseContainer, deltaISize); aReflowInput.mLineLayout->AdvanceICoord(deltaISize); } // Set block leadings of the base container nscoord startLeading = baseRect.BStart(lineWM) - offsetRect.BStart(lineWM); nscoord endLeading = offsetRect.BEnd(lineWM) - baseRect.BEnd(lineWM); // XXX When bug 765861 gets fixed, this warning should be upgraded. NS_WARNING_ASSERTION(startLeading >= 0 && endLeading >= 0, "Leadings should be non-negative (because adding " "ruby annotation can only increase the size)"); mLeadings.Update(startLeading, endLeading); }