void RenderSVGContainer::layout()
{
ASSERT(needsLayout());
calcViewport();
// Arbitrary affine transforms are incompatible with LayoutState.
view()->disableLayoutState();
IntRect oldBounds;
IntRect oldOutlineBox;
bool checkForRepaint = checkForRepaintDuringLayout();
if (selfNeedsLayout() && checkForRepaint) {
oldBounds = m_absoluteBounds;
oldOutlineBox = absoluteOutlineBox();
}
RenderObject* child = firstChild();
while (child) {
if (!child->isRenderPath() || static_cast<RenderPath*>(child)->hasRelativeValues())
child->setNeedsLayout(true);
child->layoutIfNeeded();
ASSERT(!child->needsLayout());
child = child->nextSibling();
}
calcWidth();
calcHeight();
m_absoluteBounds = absoluteClippedOverflowRect();
if (!parent()->isSVGContainer()) {
SVGSVGElement* svg = static_cast<SVGSVGElement*>(element());
m_width = static_cast<int>(static_cast<float>(m_width) * svg->currentScale());
m_height = static_cast<int>(static_cast<float>(m_height) * svg->currentScale());
}
if (selfNeedsLayout() && checkForRepaint)
repaintAfterLayoutIfNeeded(oldBounds, oldOutlineBox);
view()->enableLayoutState();
setNeedsLayout(false);
}
void RenderView::layout()
{
if (!document()->paginated())
setPageLogicalHeight(0);
if (printing())
m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = logicalWidth();
// Use calcWidth/Height to get the new width/height, since this will take the full page zoom factor into account.
bool relayoutChildren = !printing() && (!m_frameView || width() != viewWidth() || height() != viewHeight());
if (relayoutChildren) {
setChildNeedsLayout(true, MarkOnlyThis);
for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
if ((child->isBox() && toRenderBox(child)->hasRelativeLogicalHeight())
|| child->style()->logicalHeight().isPercent()
|| child->style()->logicalMinHeight().isPercent()
|| child->style()->logicalMaxHeight().isPercent())
child->setChildNeedsLayout(true, MarkOnlyThis);
}
}
ASSERT(!m_layoutState);
LayoutState state;
// FIXME: May be better to push a clip and avoid issuing offscreen repaints.
state.m_clipped = false;
state.m_pageLogicalHeight = m_pageLogicalHeight;
state.m_pageLogicalHeightChanged = m_pageLogicalHeightChanged;
state.m_isPaginated = state.m_pageLogicalHeight;
m_pageLogicalHeightChanged = false;
m_layoutState = &state;
if (needsLayout()) {
RenderBlock::layout();
if (hasRenderNamedFlowThreads())
flowThreadController()->layoutRenderNamedFlowThreads();
}
ASSERT(layoutDelta() == LayoutSize());
ASSERT(m_layoutStateDisableCount == 0);
ASSERT(m_layoutState == &state);
m_layoutState = 0;
setNeedsLayout(false);
}
void RenderReplaced::layout()
{
StackStats::LayoutCheckPoint layoutCheckPoint;
ASSERT(needsLayout());
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
setHeight(minimumReplacedHeight());
updateLogicalWidth();
updateLogicalHeight();
m_overflow.clear();
addVisualEffectOverflow();
updateLayerTransform();
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
void RenderSVGRoot::layout()
{
ASSERT(needsLayout());
m_resourcesNeedingToInvalidateClients.clear();
// Arbitrary affine transforms are incompatible with LayoutState.
LayoutStateDisabler layoutStateDisabler(view());
bool needsLayout = selfNeedsLayout();
LayoutRepainter repainter(*this, checkForRepaintDuringLayout() && needsLayout);
LayoutSize oldSize(width(), height());
computeLogicalWidth();
computeLogicalHeight();
buildLocalToBorderBoxTransform();
SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
m_isLayoutSizeChanged = needsLayout || (svg->hasRelativeLengths() && oldSize != size());
SVGRenderSupport::layoutChildren(this, needsLayout || SVGRenderSupport::filtersForceContainerLayout(this));
m_isLayoutSizeChanged = false;
if (!m_resourcesNeedingToInvalidateClients.isEmpty()) {
// Invalidate resource clients, which may mark some nodes for layout.
HashSet<RenderSVGResourceContainer*>::iterator end = m_resourcesNeedingToInvalidateClients.end();
for (HashSet<RenderSVGResourceContainer*>::iterator it = m_resourcesNeedingToInvalidateClients.begin(); it != end; ++it)
(*it)->removeAllClientsFromCache();
m_isLayoutSizeChanged = false;
SVGRenderSupport::layoutChildren(this, false);
}
// At this point LayoutRepainter already grabbed the old bounds,
// recalculate them now so repaintAfterLayout() uses the new bounds.
if (m_needsBoundariesOrTransformUpdate) {
updateCachedBoundaries();
m_needsBoundariesOrTransformUpdate = false;
}
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
bool RenderSVGResourceMasker::drawContentIntoMaskImage(MaskerData* maskerData, ColorSpace colorSpace, RenderObject* object)
{
GraphicsContext* maskImageContext = maskerData->maskImage->context();
ASSERT(maskImageContext);
// Eventually adjust the mask image context according to the target objectBoundingBox.
AffineTransform maskContentTransformation;
if (maskElement().maskContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
FloatRect objectBoundingBox = object->objectBoundingBox();
maskContentTransformation.translate(objectBoundingBox.x(), objectBoundingBox.y());
maskContentTransformation.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
maskImageContext->concatCTM(maskContentTransformation);
}
// Draw the content into the ImageBuffer.
auto children = childrenOfType<SVGElement>(maskElement());
for (auto it = children.begin(), end = children.end(); it != end; ++it) {
SVGElement& child = *it;
auto renderer = child.renderer();
if (!renderer)
continue;
if (renderer->needsLayout())
return false;
const RenderStyle& style = renderer->style();
if (style.display() == NONE || style.visibility() != VISIBLE)
continue;
SVGRenderingContext::renderSubtreeToImageBuffer(maskerData->maskImage.get(), *renderer, maskContentTransformation);
}
#if !USE(CG)
maskerData->maskImage->transformColorSpace(ColorSpaceDeviceRGB, colorSpace);
#else
UNUSED_PARAM(colorSpace);
#endif
ASSERT(style().svgStyle());
// Create the luminance mask.
if (style().svgStyle()->maskType() == MT_LUMINANCE)
maskerData->maskImage->convertToLuminanceMask();
return true;
}
void RenderRubyRun::getOverhang(bool firstLine, RenderObject* startRenderer, RenderObject* endRenderer, int& startOverhang, int& endOverhang) const
{
ASSERT(!needsLayout());
startOverhang = 0;
endOverhang = 0;
RenderRubyBase* rubyBase = this->rubyBase();
RenderRubyText* rubyText = this->rubyText();
if (!rubyBase || !rubyText)
return;
if (!rubyBase->firstRootBox())
return;
int logicalWidth = this->logicalWidth();
int logicalLeftOverhang = numeric_limits<int>::max();
int logicalRightOverhang = numeric_limits<int>::max();
for (RootInlineBox* rootInlineBox = rubyBase->firstRootBox(); rootInlineBox; rootInlineBox = rootInlineBox->nextRootBox()) {
logicalLeftOverhang = min<int>(logicalLeftOverhang, rootInlineBox->logicalLeft());
logicalRightOverhang = min<int>(logicalRightOverhang, logicalWidth - rootInlineBox->logicalRight());
}
startOverhang = style()->isLeftToRightDirection() ? logicalLeftOverhang : logicalRightOverhang;
endOverhang = style()->isLeftToRightDirection() ? logicalRightOverhang : logicalLeftOverhang;
if (!startRenderer || !startRenderer->isText() || startRenderer->style(firstLine)->fontSize() > rubyBase->style(firstLine)->fontSize())
startOverhang = 0;
if (!endRenderer || !endRenderer->isText() || endRenderer->style(firstLine)->fontSize() > rubyBase->style(firstLine)->fontSize())
endOverhang = 0;
// We overhang a ruby only if the neighboring render object is a text.
// We can overhang the ruby by no more than half the width of the neighboring text
// and no more than half the font size.
int halfWidthOfFontSize = rubyText->style(firstLine)->fontSize() / 2;
if (startOverhang)
startOverhang = min<int>(startOverhang, min<int>(toRenderText(startRenderer)->minLogicalWidth(), halfWidthOfFontSize));
if (endOverhang)
endOverhang = min<int>(endOverhang, min<int>(toRenderText(endRenderer)->minLogicalWidth(), halfWidthOfFontSize));
}
void RenderLayerModelObject::invalidateTreeIfNeeded(const PaintInvalidationState& paintInvalidationState)
{
ASSERT(!needsLayout());
if (!shouldCheckForPaintInvalidation(paintInvalidationState))
return;
bool establishesNewPaintInvalidationContainer = isPaintInvalidationContainer();
const RenderLayerModelObject& newPaintInvalidationContainer = *adjustCompositedContainerForSpecialAncestors(establishesNewPaintInvalidationContainer ? this : &paintInvalidationState.paintInvalidationContainer());
// FIXME: This assert should be re-enabled when we move paint invalidation to after compositing update. crbug.com/360286
// ASSERT(&newPaintInvalidationContainer == containerForPaintInvalidation());
PaintInvalidationReason reason = invalidatePaintIfNeeded(paintInvalidationState, newPaintInvalidationContainer);
clearPaintInvalidationState(paintInvalidationState);
PaintInvalidationState childTreeWalkState(paintInvalidationState, *this, newPaintInvalidationContainer);
if (reason == PaintInvalidationLocationChange)
childTreeWalkState.setForceCheckForPaintInvalidation();
invalidatePaintOfSubtreesIfNeeded(childTreeWalkState);
}
IntRect RenderListMarker::selectionRect(bool clipToVisibleContent)
{
ASSERT(!needsLayout());
if (selectionState() == SelectionNone || !inlineBoxWrapper())
return IntRect();
RootInlineBox* root = inlineBoxWrapper()->root();
IntRect rect(0, root->selectionTop() - yPos(), width(), root->selectionHeight());
if (clipToVisibleContent)
computeAbsoluteRepaintRect(rect);
else {
int absx, absy;
absolutePosition(absx, absy);
rect.move(absx, absy);
}
return rect;
}
void RenderReplaced::layout()
{
StackStats::LayoutCheckPoint layoutCheckPoint;
ASSERT(needsLayout());
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
setHeight(minimumReplacedHeight());
updateLogicalWidth();
updateLogicalHeight();
clearOverflow();
addVisualEffectOverflow();
updateLayerTransform();
invalidateBackgroundObscurationStatus();
repainter.repaintAfterLayout();
clearNeedsLayout();
}
bool RenderSVGResourceMasker::applyResource(RenderObject* object, RenderStyle*,
GraphicsContext*& context, unsigned short resourceMode)
{
ASSERT(object);
ASSERT(context);
ASSERT(style());
ASSERT_UNUSED(resourceMode, resourceMode == ApplyToDefaultMode);
ASSERT_WITH_SECURITY_IMPLICATION(!needsLayout());
clearInvalidationMask();
FloatRect paintInvalidationRect = object->paintInvalidationRectInLocalCoordinates();
if (paintInvalidationRect.isEmpty() || !element()->hasChildren())
return false;
// Content layer start.
context->beginTransparencyLayer(1, &paintInvalidationRect);
return true;
}
void RenderWidget::updateOnWidgetChange()
{
Widget* widget = this->widget();
if (!widget)
return;
if (!style())
return;
if (!needsLayout())
updateWidgetGeometry();
if (style()->visibility() != VISIBLE) {
widget->hide();
} else {
widget->show();
// FIXME: Why do we repaint in this case, but not the other?
repaint();
}
}
void LayoutPart::updateOnWidgetChange()
{
Widget* widget = this->widget();
if (!widget)
return;
if (!style())
return;
if (!needsLayout())
updateWidgetGeometryInternal();
if (style()->visibility() != VISIBLE) {
widget->hide();
} else {
widget->show();
// FIXME: Why do we issue a full paint invalidation in this case, but not the other?
setShouldDoFullPaintInvalidation();
}
}
void RenderFrameSet::layout()
{
ASSERT(needsLayout());
bool doFullRepaint = selfNeedsLayout() && checkForRepaintDuringLayout();
IntRect oldBounds;
if (doFullRepaint)
oldBounds = absoluteClippedOverflowRect();
if (!parent()->isFrameSet() && !document()->printing()) {
setWidth(view()->viewWidth());
setHeight(view()->viewHeight());
}
size_t cols = frameSet()->totalCols();
size_t rows = frameSet()->totalRows();
if (m_rows.m_sizes.size() != rows || m_cols.m_sizes.size() != cols) {
m_rows.resize(rows);
m_cols.resize(cols);
}
int borderThickness = frameSet()->border();
layOutAxis(m_rows, frameSet()->rowLengths(), height() - (rows - 1) * borderThickness);
layOutAxis(m_cols, frameSet()->colLengths(), width() - (cols - 1) * borderThickness);
positionFrames();
RenderBox::layout();
computeEdgeInfo();
if (doFullRepaint) {
view()->repaintViewRectangle(oldBounds);
IntRect newBounds = absoluteClippedOverflowRect();
if (newBounds != oldBounds)
view()->repaintViewRectangle(newBounds);
}
setNeedsLayout(false);
}
void RenderSVGRoot::layout()
{
ASSERT(needsLayout());
// Arbitrary affine transforms are incompatible with LayoutState.
ForceHorriblySlowRectMapping slowRectMapping(*this);
bool needsLayout = selfNeedsLayout();
LayoutSize oldSize = size();
updateLogicalWidth();
updateLogicalHeight();
buildLocalToBorderBoxTransform();
SVGRenderSupport::layoutResourcesIfNeeded(this);
SVGSVGElement* svg = toSVGSVGElement(node());
ASSERT(svg);
m_isLayoutSizeChanged = needsLayout || (svg->hasRelativeLengths() && oldSize != size());
SVGRenderSupport::layoutChildren(this, needsLayout || SVGRenderSupport::filtersForceContainerLayout(this));
if (m_needsBoundariesOrTransformUpdate) {
updateCachedBoundaries();
m_needsBoundariesOrTransformUpdate = false;
}
m_overflow.clear();
addVisualEffectOverflow();
if (!shouldApplyViewportClip()) {
FloatRect contentRepaintRect = paintInvalidationRectInLocalCoordinates();
contentRepaintRect = m_localToBorderBoxTransform.mapRect(contentRepaintRect);
addVisualOverflow(enclosingLayoutRect(contentRepaintRect));
}
updateLayerTransformAfterLayout();
m_hasBoxDecorationBackground = isDocumentElement() ? calculateHasBoxDecorations() : hasBoxDecorationBackground();
invalidateBackgroundObscurationStatus();
clearNeedsLayout();
}
void FrameView::scheduleRelayout()
{
ASSERT(m_frame->view() == this);
if (isSubtreeLayout()) {
m_layoutSubtreeRoot->markContainingBlocksForLayout(false);
m_layoutSubtreeRoot = 0;
}
if (!m_layoutSchedulingEnabled)
return;
if (!needsLayout())
return;
if (!m_frame->document()->isActive())
return;
if (m_hasPendingLayout)
return;
m_hasPendingLayout = true;
m_frame->document()->scheduleVisualUpdate();
}
void RenderSVGImage::layout()
{
ASSERT(needsLayout());
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
SVGImageElement* image = static_cast<SVGImageElement*>(node());
m_localTransform = image->animatedLocalTransform();
// minimum height
setHeight(errorOccurred() ? intrinsicSize().height() : 0);
calcWidth();
calcHeight();
m_localBounds = FloatRect(image->x().value(image), image->y().value(image), image->width().value(image), image->height().value(image));
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
void RenderSVGText::layout()
{
ASSERT(needsLayout());
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
// Best guess for a relative starting point
SVGTextElement* text = static_cast<SVGTextElement*>(node());
int xOffset = (int)(text->x()->getFirst().value(text));
int yOffset = (int)(text->y()->getFirst().value(text));
setLocation(xOffset, yOffset);
if (m_needsTransformUpdate) {
m_localTransform = text->animatedLocalTransform();
m_needsTransformUpdate = false;
}
RenderBlock::layout();
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
int RenderFrameSet::hitTestSplit(const GridAxis& axis, int position) const
{
if (needsLayout())
return noSplit;
int borderThickness = frameSetElement().border();
if (borderThickness <= 0)
return noSplit;
size_t size = axis.m_sizes.size();
if (!size)
return noSplit;
int splitPosition = axis.m_sizes[0];
for (size_t i = 1; i < size; ++i) {
if (position >= splitPosition && position < splitPosition + borderThickness)
return i;
splitPosition += borderThickness + axis.m_sizes[i];
}
return noSplit;
}
void RenderForeignObject::layout()
{
ASSERT(needsLayout());
// Arbitrary affine transforms are incompatible with LayoutState.
view()->disableLayoutState();
// FIXME: using m_absoluteBounds breaks if containerForRepaint() is not the root
LayoutRepainter repainter(*this, checkForRepaintDuringLayout(), &m_absoluteBounds);
calculateLocalTransform();
RenderBlock::layout();
m_absoluteBounds = absoluteClippedOverflowRect();
repainter.repaintAfterLayout();
view()->enableLayoutState();
setNeedsLayout(false);
}
void RenderReplaced::layout()
{
ASSERT(needsLayout());
LayoutRect oldContentRect = replacedContentRect();
setHeight(minimumReplacedHeight());
updateLogicalWidth();
updateLogicalHeight();
m_overflow.clear();
addVisualEffectOverflow();
updateLayerTransformAfterLayout();
invalidateBackgroundObscurationStatus();
clearNeedsLayout();
if (replacedContentRect() != oldContentRect)
setShouldDoFullPaintInvalidation();
}
void LayoutListMarker::layout() {
ASSERT(needsLayout());
LayoutAnalyzer::Scope analyzer(*this);
LayoutUnit blockOffset;
for (LayoutBox* o = parentBox(); o && o != listItem(); o = o->parentBox()) {
blockOffset += o->logicalTop();
}
if (listItem()->style()->isLeftToRightDirection()) {
m_lineOffset = listItem()->logicalLeftOffsetForLine(
blockOffset, DoNotIndentText, LayoutUnit());
} else {
m_lineOffset = listItem()->logicalRightOffsetForLine(
blockOffset, DoNotIndentText, LayoutUnit());
}
if (isImage()) {
updateMarginsAndContent();
LayoutSize imageSize(imageBulletSize());
setWidth(imageSize.width());
setHeight(imageSize.height());
} else {
const SimpleFontData* fontData = style()->font().primaryFont();
DCHECK(fontData);
setLogicalWidth(minPreferredLogicalWidth());
setLogicalHeight(
LayoutUnit(fontData ? fontData->getFontMetrics().height() : 0));
}
setMarginStart(LayoutUnit());
setMarginEnd(LayoutUnit());
Length startMargin = style()->marginStart();
Length endMargin = style()->marginEnd();
if (startMargin.isFixed())
setMarginStart(LayoutUnit(startMargin.value()));
if (endMargin.isFixed())
setMarginEnd(LayoutUnit(endMargin.value()));
clearNeedsLayout();
}
void RenderSVGText::layout()
{
ASSERT(needsLayout());
// FIXME: This is a hack to avoid the RenderBlock::layout() partial repainting code which is not (yet) SVG aware
setNeedsLayout(true);
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
// Best guess for a relative starting point
SVGTextElement* text = static_cast<SVGTextElement*>(node());
int xOffset = (int)(text->x()->getFirst().value(text));
int yOffset = (int)(text->y()->getFirst().value(text));
setLocation(xOffset, yOffset);
m_localTransform = text->animatedLocalTransform();
RenderBlock::layout();
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
void LayoutReplaced::layout()
{
ASSERT(needsLayout());
LayoutAnalyzer::Scope analyzer(*this);
LayoutRect oldContentRect = replacedContentRect();
setHeight(minimumReplacedHeight());
updateLogicalWidth();
updateLogicalHeight();
m_overflow.clear();
addVisualEffectOverflow();
updateLayerTransformAfterLayout();
invalidateBackgroundObscurationStatus();
clearNeedsLayout();
if (!RuntimeEnabledFeatures::slimmingPaintV2Enabled() && replacedContentRect() != oldContentRect)
setShouldDoFullPaintInvalidation();
}
void RenderView::layout()
{
SubtreeLayoutScope layoutScope(*this);
bool relayoutChildren = (!m_frameView || width() != viewWidth() || height() != viewHeight());
if (relayoutChildren) {
layoutScope.setChildNeedsLayout(this);
for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
if ((child->isBox() && toRenderBox(child)->hasRelativeLogicalHeight())
|| child->style()->logicalHeight().isPercent()
|| child->style()->logicalMinHeight().isPercent()
|| child->style()->logicalMaxHeight().isPercent())
layoutScope.setChildNeedsLayout(child);
}
}
if (!needsLayout())
return;
RenderFlexibleBox::layout();
clearNeedsLayout();
}
void RenderSVGRoot::layout()
{
ASSERT(needsLayout());
// Arbitrary affine transforms are incompatible with LayoutState.
LayoutStateDisabler layoutStateDisabler(view());
bool needsLayout = selfNeedsLayout();
LayoutRepainter repainter(*this, checkForRepaintDuringLayout() && needsLayout);
LayoutSize oldSize(width(), height());
computeLogicalWidth();
computeLogicalHeight();
calcViewport();
SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
m_isLayoutSizeChanged = svg->hasRelativeLengths() && oldSize != size();
if (view() && view()->frameView() && view()->frameView()->embeddedContentBox()) {
if (!m_needsSizeNegotiationWithHostDocument)
m_needsSizeNegotiationWithHostDocument = !m_everHadLayout || oldSize != size();
} else
ASSERT(!m_needsSizeNegotiationWithHostDocument);
SVGRenderSupport::layoutChildren(this, needsLayout);
m_isLayoutSizeChanged = false;
// At this point LayoutRepainter already grabbed the old bounds,
// recalculate them now so repaintAfterLayout() uses the new bounds.
if (m_needsBoundariesOrTransformUpdate) {
updateCachedBoundaries();
m_needsBoundariesOrTransformUpdate = false;
}
repainter.repaintAfterLayout();
setNeedsLayout(false);
}
void RenderReplaced::layout()
{
ASSERT(needsLayout());
IntRect oldBounds;
IntRect oldOutlineBox;
bool checkForRepaint = checkForRepaintDuringLayout();
if (checkForRepaint) {
oldBounds = absoluteClippedOverflowRect();
oldOutlineBox = absoluteOutlineBox();
}
m_height = minimumReplacedHeight();
calcWidth();
calcHeight();
adjustOverflowForBoxShadow();
if (checkForRepaint)
repaintAfterLayoutIfNeeded(oldBounds, oldOutlineBox);
setNeedsLayout(false);
}
void RenderBlockFlow::layoutBlock(bool relayoutChildren)
{
ASSERT(needsLayout());
ASSERT(isInlineBlock() || !isInline());
if (!relayoutChildren && simplifiedLayout())
return;
SubtreeLayoutScope layoutScope(*this);
layoutBlockFlow(relayoutChildren, layoutScope);
updateLayerTransformAfterLayout();
// Update our scroll information if we're overflow:auto/scroll/hidden now that we know if
// we overflow or not.
updateScrollInfoAfterLayout();
if (m_paintInvalidationLogicalTop != m_paintInvalidationLogicalBottom)
setShouldInvalidateOverflowForPaint(true);
clearNeedsLayout();
}
void RenderSVGContainer::layout()
{
ASSERT(needsLayout());
// Arbitrary affine transforms are incompatible with LayoutState.
view()->disableLayoutState();
IntRect oldBounds;
IntRect oldOutlineBox;
bool checkForRepaint = checkForRepaintDuringLayout() && selfWillPaint();
if (checkForRepaint) {
oldBounds = m_absoluteBounds;
oldOutlineBox = absoluteOutlineBounds();
}
calculateLocalTransform();
for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
// Only force our kids to layout if we're being asked to relayout as a result of a parent changing
// FIXME: We should be able to skip relayout of non-relative kids when only bounds size has changed
// that's a possible future optimization using LayoutState
// http://bugs.webkit.org/show_bug.cgi?id=15391
if (selfNeedsLayout())
child->setNeedsLayout(true);
child->layoutIfNeeded();
ASSERT(!child->needsLayout());
}
calcBounds();
if (checkForRepaint)
repaintAfterLayoutIfNeeded(oldBounds, oldOutlineBox);
view()->enableLayoutState();
setNeedsLayout(false);
}
void RenderView::layout()
{
if (printing())
m_minPrefWidth = m_maxPrefWidth = width();
// Use calcWidth/Height to get the new width/height, since this will take the full page zoom factor into account.
bool relayoutChildren = !printing() && (!m_frameView || width() != viewWidth() || height() != viewHeight());
if (relayoutChildren) {
setChildNeedsLayout(true, false);
for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
if (child->style()->height().isPercent() || child->style()->minHeight().isPercent() || child->style()->maxHeight().isPercent())
child->setChildNeedsLayout(true, false);
}
}
ASSERT(!m_layoutState);
LayoutState state;
// FIXME: May be better to push a clip and avoid issuing offscreen repaints.
state.m_clipped = false;
m_layoutState = &state;
if (needsLayout())
RenderBlock::layout();
// Reset overflowWidth and overflowHeight, since they act as a lower bound for docWidth() and docHeight().
setOverflowWidth(width());
setOverflowHeight(height());
setOverflowWidth(docWidth());
setOverflowHeight(docHeight());
ASSERT(layoutDelta() == IntSize());
ASSERT(m_layoutStateDisableCount == 0);
ASSERT(m_layoutState == &state);
m_layoutState = 0;
setNeedsLayout(false);
}
void RenderRubyRun::getOverhang(bool firstLine, RenderObject* startRenderer, RenderObject* endRenderer, int& startOverhang, int& endOverhang) const
{
ASSERT(!needsLayout());
startOverhang = 0;
endOverhang = 0;
RenderRubyBase* rubyBase = this->rubyBase();
RenderRubyText* rubyText = this->rubyText();
if (!rubyBase || !rubyText)
return;
if (!rubyBase->firstRootBox())
return;
int logicalWidth = this->logicalWidth();
// No more than half a ruby is allowed to overhang.
int logicalLeftOverhang = rubyText->style(firstLine)->fontSize() / 2;
int logicalRightOverhang = logicalLeftOverhang;
for (RootInlineBox* rootInlineBox = rubyBase->firstRootBox(); rootInlineBox; rootInlineBox = rootInlineBox->nextRootBox()) {
logicalLeftOverhang = min<int>(logicalLeftOverhang, rootInlineBox->logicalLeft());
logicalRightOverhang = min<int>(logicalRightOverhang, logicalWidth - rootInlineBox->logicalRight());
}
startOverhang = style()->isLeftToRightDirection() ? logicalLeftOverhang : logicalRightOverhang;
endOverhang = style()->isLeftToRightDirection() ? logicalRightOverhang : logicalLeftOverhang;
if (!startRenderer || !startRenderer->isText() || startRenderer->style(firstLine)->fontSize() > rubyBase->style(firstLine)->fontSize())
startOverhang = 0;
if (!endRenderer || !endRenderer->isText() || endRenderer->style(firstLine)->fontSize() > rubyBase->style(firstLine)->fontSize())
endOverhang = 0;
}
