nscoord
nsTableWrapperFrame::ChildShrinkWrapISize(nsRenderingContext* aRenderingContext,
nsIFrame* aChildFrame,
WritingMode aWM,
LogicalSize aCBSize,
nscoord aAvailableISize,
nscoord* aMarginResult) const
{
AutoMaybeDisableFontInflation an(aChildFrame);
// For the caption frame, child's WM may differ from the table's main WM.
WritingMode childWM = aChildFrame->GetWritingMode();
SizeComputationInput offsets(aChildFrame, aRenderingContext, aWM,
aCBSize.ISize(aWM));
LogicalSize marginSize =
offsets.ComputedLogicalMargin().Size(childWM).ConvertTo(aWM, childWM);
LogicalSize paddingSize =
offsets.ComputedLogicalPadding().Size(childWM).ConvertTo(aWM, childWM);
LogicalSize bpSize =
offsets.ComputedLogicalBorderPadding().Size(childWM).ConvertTo(aWM, childWM);
// Shrink-wrap aChildFrame by default, except if we're a stretched grid item.
auto flags = ComputeSizeFlags::eShrinkWrap;
auto parent = GetParent();
nsIAtom* parentFrameType = parent ? parent->GetType() : nullptr;
bool isGridItem = (parentFrameType == nsGkAtoms::gridContainerFrame &&
!HasAnyStateBits(NS_FRAME_OUT_OF_FLOW));
if (MOZ_UNLIKELY(isGridItem) &&
!StyleMargin()->HasInlineAxisAuto(aWM)) {
auto inlineAxisAlignment = aWM.IsOrthogonalTo(parent->GetWritingMode()) ?
StylePosition()->UsedAlignSelf(parent->StyleContext()) :
StylePosition()->UsedJustifySelf(parent->StyleContext());
if (inlineAxisAlignment == NS_STYLE_ALIGN_NORMAL ||
inlineAxisAlignment == NS_STYLE_ALIGN_STRETCH) {
flags = nsIFrame::ComputeSizeFlags::eDefault;
}
}
LogicalSize size =
aChildFrame->ComputeSize(aRenderingContext, aWM, aCBSize, aAvailableISize,
marginSize, bpSize - paddingSize, paddingSize,
flags);
if (aMarginResult) {
*aMarginResult = offsets.ComputedLogicalMargin().IStartEnd(aWM);
}
return size.ISize(aWM) + marginSize.ISize(aWM) + bpSize.ISize(aWM);
}
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 (NS_INLINE_IS_BREAK_BEFORE(aStatus)) {
if (aBaseContainer != mFrames.FirstChild()) {
// Some segments may have been reflowed before, hence it is not
// a break-before for the ruby container.
aStatus = NS_INLINE_LINE_BREAK_AFTER(NS_FRAME_NOT_COMPLETE);
PushChildren(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 (NS_FRAME_IS_NOT_COMPLETE(aStatus)) {
// 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(NS_INLINE_IS_BREAK_AFTER(aStatus));
// 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.
PushChildren(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;
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));
// FIXME We probably shouldn't be using the same nsLineLayout for
// the text containers. But it should be fine now as we are
// not actually using this line layout to reflow something,
// but just read the writing mode from it.
textReflowInput.mLineLayout = aReflowInput.mLineLayout;
textContainer->Reflow(aPresContext, textMetrics,
textReflowInput, textReflowStatus);
// Ruby text containers always return NS_FRAME_COMPLETE even when
// they have continuations, because the breaking has already been
// handled when reflowing the base containers.
NS_ASSERTION(textReflowStatus == NS_FRAME_COMPLETE,
"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 (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)");
mBStartLeading = std::max(mBStartLeading, startLeading);
mBEndLeading = std::max(mBEndLeading, endLeading);
}
/**
* This function returns the offset of an abs/fixed-pos child's static
* position, with respect to the "start" corner of its alignment container,
* according to CSS Box Alignment. This function only operates in a single
* axis at a time -- callers can choose which axis via the |aAbsPosCBAxis|
* parameter.
*
* @param aKidReflowInput The ReflowInput for the to-be-aligned abspos child.
* @param aKidSizeInAbsPosCBWM The child frame's size (after it's been given
* the opportunity to reflow), in terms of the
* containing block's WritingMode.
* @param aPlaceholderContainer The parent of the child frame's corresponding
* placeholder frame, cast to a nsContainerFrame.
* (This will help us choose which alignment enum
* we should use for the child.)
* @param aAbsPosCBWM The child frame's containing block's WritingMode.
* @param aAbsPosCBAxis The axis (of the containing block) that we should
* be doing this computation for.
*/
static nscoord
OffsetToAlignedStaticPos(const ReflowInput& aKidReflowInput,
const LogicalSize& aKidSizeInAbsPosCBWM,
nsContainerFrame* aPlaceholderContainer,
WritingMode aAbsPosCBWM,
LogicalAxis aAbsPosCBAxis)
{
if (!aPlaceholderContainer) {
// (The placeholder container should be the thing that kicks this whole
// process off, by setting PLACEHOLDER_STATICPOS_NEEDS_CSSALIGN. So it
// should exist... but bail gracefully if it doesn't.)
NS_ERROR("Missing placeholder-container when computing a "
"CSS Box Alignment static position");
return 0;
}
// (Most of this function is simply preparing args that we'll pass to
// AlignJustifySelf at the end.)
// NOTE: Our alignment container is aPlaceholderContainer's content-box
// (or an area within it, if aPlaceholderContainer is a grid). So, we'll
// perform most of our arithmetic/alignment in aPlaceholderContainer's
// WritingMode. For brevity, we use the abbreviation "pc" for "placeholder
// container" in variables below.
WritingMode pcWM = aPlaceholderContainer->GetWritingMode();
// Find what axis aAbsPosCBAxis corresponds to, in placeholder's parent's
// writing-mode.
LogicalAxis pcAxis = (pcWM.IsOrthogonalTo(aAbsPosCBWM)
? GetOrthogonalAxis(aAbsPosCBAxis)
: aAbsPosCBAxis);
nsIAtom* parentType = aPlaceholderContainer->GetType();
LogicalSize alignAreaSize(pcWM);
if (parentType == nsGkAtoms::flexContainerFrame) {
alignAreaSize = aPlaceholderContainer->GetLogicalSize(pcWM);
LogicalMargin pcBorderPadding =
aPlaceholderContainer->GetLogicalUsedBorderAndPadding(pcWM);
alignAreaSize -= pcBorderPadding.Size(pcWM);
} else {
NS_ERROR("Unsupported container for abpsos CSS Box Alignment");
return 0; // (leave the child at the start of its alignment container)
}
nscoord alignAreaSizeInAxis = (pcAxis == eLogicalAxisInline)
? alignAreaSize.ISize(pcWM)
: alignAreaSize.BSize(pcWM);
AlignJustifyFlags flags = AlignJustifyFlags::eIgnoreAutoMargins;
uint16_t alignConst =
aPlaceholderContainer->CSSAlignmentForAbsPosChild(aKidReflowInput, pcAxis);
// XXXdholbert: Handle <overflow-position> in bug 1311892 (by conditionally
// setting AlignJustifyFlags::eOverflowSafe in |flags|.) For now, we behave
// as if "unsafe" was the specified value (which is basically equivalent to
// the default behavior, when no value is specified -- though the default
// behavior also has some [at-risk] extra nuance about scroll containers...)
// For now we ignore & strip off <overflow-position> bits, until bug 1311892.
alignConst &= ~NS_STYLE_ALIGN_FLAG_BITS;
// Find out if placeholder-container & the OOF child have the same start-sides
// in the placeholder-container's pcAxis.
WritingMode kidWM = aKidReflowInput.GetWritingMode();
if (pcWM.ParallelAxisStartsOnSameSide(pcAxis, kidWM)) {
flags |= AlignJustifyFlags::eSameSide;
}
// (baselineAdjust is unused. CSSAlignmentForAbsPosChild() should've
// converted 'baseline'/'last baseline' enums to their fallback values.)
const nscoord baselineAdjust = nscoord(0);
// AlignJustifySelf operates in the kid's writing mode, so we need to
// represent the child's size and the desired axis in that writing mode:
LogicalSize kidSizeInOwnWM = aKidSizeInAbsPosCBWM.ConvertTo(kidWM,
aAbsPosCBWM);
LogicalAxis kidAxis = (kidWM.IsOrthogonalTo(aAbsPosCBWM)
? GetOrthogonalAxis(aAbsPosCBAxis)
: aAbsPosCBAxis);
nscoord offset =
CSSAlignUtils::AlignJustifySelf(alignConst, kidAxis, flags,
baselineAdjust, alignAreaSizeInAxis,
aKidReflowInput, kidSizeInOwnWM);
// "offset" is in terms of the CSS Box Alignment container (i.e. it's in
// terms of pcWM). But our return value needs to in terms of the containing
// block's writing mode, which might have the opposite directionality in the
// given axis. In that case, we just need to negate "offset" when returning,
// to make it have the right effect as an offset for coordinates in the
// containing block's writing mode.
if (!pcWM.ParallelAxisStartsOnSameSide(pcAxis, aAbsPosCBWM)) {
return -offset;
}
return offset;
}
void
nsVideoFrame::Reflow(nsPresContext* aPresContext,
ReflowOutput& aMetrics,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus)
{
MarkInReflow();
DO_GLOBAL_REFLOW_COUNT("nsVideoFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowInput, aMetrics, aStatus);
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("enter nsVideoFrame::Reflow: availSize=%d,%d",
aReflowInput.AvailableWidth(),
aReflowInput.AvailableHeight()));
NS_PRECONDITION(mState & NS_FRAME_IN_REFLOW, "frame is not in reflow");
aStatus = NS_FRAME_COMPLETE;
const WritingMode myWM = aReflowInput.GetWritingMode();
nscoord contentBoxBSize = aReflowInput.ComputedBSize();
const nscoord borderBoxISize = aReflowInput.ComputedISize() +
aReflowInput.ComputedLogicalBorderPadding().IStartEnd(myWM);
const bool isBSizeShrinkWrapping = (contentBoxBSize == NS_INTRINSICSIZE);
nscoord borderBoxBSize;
if (!isBSizeShrinkWrapping) {
borderBoxBSize = contentBoxBSize +
aReflowInput.ComputedLogicalBorderPadding().BStartEnd(myWM);
}
nsMargin borderPadding = aReflowInput.ComputedPhysicalBorderPadding();
// Reflow the child frames. We may have up to three: an image
// frame (for the poster image), a container frame for the controls,
// and a container frame for the caption.
for (nsIFrame* child : mFrames) {
nsSize oldChildSize = child->GetSize();
if (child->GetContent() == mPosterImage) {
// Reflow the poster frame.
nsImageFrame* imageFrame = static_cast<nsImageFrame*>(child);
ReflowOutput kidDesiredSize(aReflowInput);
WritingMode wm = imageFrame->GetWritingMode();
LogicalSize availableSize = aReflowInput.AvailableSize(wm);
LogicalSize cbSize = aMetrics.Size(aMetrics.GetWritingMode()).
ConvertTo(wm, aMetrics.GetWritingMode());
ReflowInput kidReflowInput(aPresContext,
aReflowInput,
imageFrame,
availableSize,
&cbSize);
nsRect posterRenderRect;
if (ShouldDisplayPoster()) {
posterRenderRect =
nsRect(nsPoint(borderPadding.left, borderPadding.top),
nsSize(aReflowInput.ComputedWidth(),
aReflowInput.ComputedHeight()));
}
kidReflowInput.SetComputedWidth(posterRenderRect.width);
kidReflowInput.SetComputedHeight(posterRenderRect.height);
ReflowChild(imageFrame, aPresContext, kidDesiredSize, kidReflowInput,
posterRenderRect.x, posterRenderRect.y, 0, aStatus);
FinishReflowChild(imageFrame, aPresContext,
kidDesiredSize, &kidReflowInput,
posterRenderRect.x, posterRenderRect.y, 0);
// Android still uses XUL media controls & hence needs this XUL-friendly
// custom reflow code. This will go away in bug 1310907.
#ifdef ANDROID
} else if (child->GetContent() == mVideoControls) {
// Reflow the video controls frame.
nsBoxLayoutState boxState(PresContext(), aReflowInput.mRenderingContext);
nsBoxFrame::LayoutChildAt(boxState,
child,
nsRect(borderPadding.left,
borderPadding.top,
aReflowInput.ComputedWidth(),
aReflowInput.ComputedHeight()));
#endif // ANDROID
} else if (child->GetContent() == mCaptionDiv ||
child->GetContent() == mVideoControls) {
// Reflow the caption and control bar frames.
WritingMode wm = child->GetWritingMode();
LogicalSize availableSize = aReflowInput.ComputedSize(wm);
availableSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
ReflowInput kidReflowInput(aPresContext,
aReflowInput,
child,
availableSize);
ReflowOutput kidDesiredSize(kidReflowInput);
ReflowChild(child, aPresContext, kidDesiredSize, kidReflowInput,
borderPadding.left, borderPadding.top, 0, aStatus);
if (child->GetContent() == mVideoControls && isBSizeShrinkWrapping) {
// Resolve our own BSize based on the controls' size in the same axis.
contentBoxBSize = myWM.IsOrthogonalTo(wm) ?
kidDesiredSize.ISize(wm) : kidDesiredSize.BSize(wm);
}
FinishReflowChild(child, aPresContext,
kidDesiredSize, &kidReflowInput,
borderPadding.left, borderPadding.top, 0);
}
if (child->GetContent() == mVideoControls && child->GetSize() != oldChildSize) {
RefPtr<Runnable> event = new DispatchResizeToControls(child->GetContent());
nsContentUtils::AddScriptRunner(event);
}
}
if (isBSizeShrinkWrapping) {
if (contentBoxBSize == NS_INTRINSICSIZE) {
// We didn't get a BSize from our intrinsic size/ratio, nor did we
// get one from our controls. Just use BSize of 0.
contentBoxBSize = 0;
}
contentBoxBSize = NS_CSS_MINMAX(contentBoxBSize,
aReflowInput.ComputedMinBSize(),
aReflowInput.ComputedMaxBSize());
borderBoxBSize = contentBoxBSize +
aReflowInput.ComputedLogicalBorderPadding().BStartEnd(myWM);
}
LogicalSize logicalDesiredSize(myWM, borderBoxISize, borderBoxBSize);
aMetrics.SetSize(myWM, logicalDesiredSize);
aMetrics.SetOverflowAreasToDesiredBounds();
FinishAndStoreOverflow(&aMetrics);
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("exit nsVideoFrame::Reflow: size=%d,%d",
aMetrics.Width(), aMetrics.Height()));
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aMetrics);
}
