#ifndef RenderBox_h
#define RenderBox_h
#include "RenderBoxModelObject.h"
#include "RenderOverflow.h"
#include "ScrollTypes.h"
#if ENABLE(CSS_SHAPES)
#include "ShapeOutsideInfo.h"
#endif
namespace WebCore {
class InlineElementBox;
class RenderBlockFlow;
class RenderBoxRegionInfo;
class RenderRegion;
struct PaintInfo;
enum SizeType { MainOrPreferredSize, MinSize, MaxSize };
enum AvailableLogicalHeightType { ExcludeMarginBorderPadding, IncludeMarginBorderPadding };
enum OverlayScrollbarSizeRelevancy { IgnoreOverlayScrollbarSize, IncludeOverlayScrollbarSize };
enum ShouldComputePreferred { ComputeActual, ComputePreferred };
class RenderBox : public RenderBoxModelObject {
public:
virtual ~RenderBox();
virtual bool requiresLayer() const override
{
return isRoot() || isPositioned() || createsGroup() || hasClipPath() || hasOverflowClip()
|| hasTransform() || hasHiddenBackface() || hasReflection() || style().specifiesColumns()
|| !style().hasAutoZIndex();
}
virtual bool backgroundIsKnownToBeOpaqueInRect(const LayoutRect& localRect) const override final;
RenderBox* firstChildBox() const;
RenderBox* lastChildBox() const;
LayoutUnit x() const { return m_frameRect.x(); }
LayoutUnit y() const { return m_frameRect.y(); }
LayoutUnit width() const { return m_frameRect.width(); }
LayoutUnit height() const { return m_frameRect.height(); }
int pixelSnappedWidth() const { return m_frameRect.pixelSnappedWidth(); }
int pixelSnappedHeight() const { return m_frameRect.pixelSnappedHeight(); }
LayoutUnit top() const { return topLeftLocation().y(); }
LayoutUnit left() const { return topLeftLocation().x(); }
void setX(LayoutUnit x) { m_frameRect.setX(x); }
void setY(LayoutUnit y) { m_frameRect.setY(y); }
void setWidth(LayoutUnit width) { m_frameRect.setWidth(width); }
void setHeight(LayoutUnit height) { m_frameRect.setHeight(height); }
LayoutUnit logicalLeft() const { return style().isHorizontalWritingMode() ? x() : y(); }
LayoutUnit logicalRight() const { return logicalLeft() + logicalWidth(); }
LayoutUnit logicalTop() const { return style().isHorizontalWritingMode() ? y() : x(); }
LayoutUnit logicalBottom() const { return logicalTop() + logicalHeight(); }
LayoutUnit logicalWidth() const { return style().isHorizontalWritingMode() ? width() : height(); }
LayoutUnit logicalHeight() const { return style().isHorizontalWritingMode() ? height() : width(); }
LayoutUnit constrainLogicalWidthInRegionByMinMax(LayoutUnit, LayoutUnit, RenderBlock*, RenderRegion* = 0) const;
LayoutUnit constrainLogicalHeightByMinMax(LayoutUnit) const;
LayoutUnit constrainContentBoxLogicalHeightByMinMax(LayoutUnit) const;
int pixelSnappedLogicalHeight() const { return style().isHorizontalWritingMode() ? pixelSnappedHeight() : pixelSnappedWidth(); }
int pixelSnappedLogicalWidth() const { return style().isHorizontalWritingMode() ? pixelSnappedWidth() : pixelSnappedHeight(); }
void setLogicalLeft(LayoutUnit left)
{
if (style().isHorizontalWritingMode())
setX(left);
else
setY(left);
}
void setLogicalTop(LayoutUnit top)
{
if (style().isHorizontalWritingMode())
setY(top);
else
setX(top);
}
void setLogicalLocation(const LayoutPoint& location)
{
if (style().isHorizontalWritingMode())
setLocation(location);
else
setLocation(location.transposedPoint());
}
void setLogicalWidth(LayoutUnit size)
{
if (style().isHorizontalWritingMode())
setWidth(size);
else
setHeight(size);
}
void setLogicalHeight(LayoutUnit size)
{
if (style().isHorizontalWritingMode())
setHeight(size);
else
setWidth(size);
}
void setLogicalSize(const LayoutSize& size)
{
if (style().isHorizontalWritingMode())
setSize(size);
else
setSize(size.transposedSize());
}
LayoutPoint location() const { return m_frameRect.location(); }
LayoutSize locationOffset() const { return LayoutSize(x(), y()); }
LayoutSize size() const { return m_frameRect.size(); }
IntSize pixelSnappedSize() const { return m_frameRect.pixelSnappedSize(); }
void setLocation(const LayoutPoint& location) { m_frameRect.setLocation(location); }
void setSize(const LayoutSize& size) { m_frameRect.setSize(size); }
void move(LayoutUnit dx, LayoutUnit dy) { m_frameRect.move(dx, dy); }
LayoutRect frameRect() const { return m_frameRect; }
IntRect pixelSnappedFrameRect() const { return pixelSnappedIntRect(m_frameRect); }
void setFrameRect(const LayoutRect& rect) { m_frameRect = rect; }
LayoutRect marginBoxRect() const
{
LayoutRect box = borderBoxRect();
box.expand(m_marginBox);
return box;
}
LayoutRect borderBoxRect() const { return LayoutRect(LayoutPoint(), size()); }
LayoutRect paddingBoxRect() const { return LayoutRect(borderLeft(), borderTop(), contentWidth() + paddingLeft() + paddingRight(), contentHeight() + paddingTop() + paddingBottom()); }
IntRect pixelSnappedBorderBoxRect() const { return IntRect(IntPoint(), m_frameRect.pixelSnappedSize()); }
virtual IntRect borderBoundingBox() const override final { return pixelSnappedBorderBoxRect(); }
RoundedRect::Radii borderRadii() const;
LayoutRect contentBoxRect() const { return LayoutRect(borderLeft() + paddingLeft(), borderTop() + paddingTop(), contentWidth(), contentHeight()); }
IntRect absoluteContentBox() const;
FloatQuad absoluteContentQuad() const;
LayoutRect computedCSSContentBoxRect() const { return LayoutRect(borderLeft() + computedCSSPaddingLeft(), borderTop() + computedCSSPaddingTop(), clientWidth() - computedCSSPaddingLeft() - computedCSSPaddingRight(), clientHeight() - computedCSSPaddingTop() - computedCSSPaddingBottom()); }
virtual LayoutRect outlineBoundsForRepaint(const RenderLayerModelObject* , const RenderGeometryMap*) const override final;
virtual void addFocusRingRects(Vector<IntRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) override;
RenderBox* previousSiblingBox() const;
RenderBox* nextSiblingBox() const;
RenderBox* parentBox() const;
LayoutRect flippedClientBoxRect() const;
LayoutRect layoutOverflowRect() const { return m_overflow ? m_overflow->layoutOverflowRect() : flippedClientBoxRect(); }
LayoutUnit logicalLeftLayoutOverflow() const { return style().isHorizontalWritingMode() ? layoutOverflowRect().x() : layoutOverflowRect().y(); }
LayoutUnit logicalRightLayoutOverflow() const { return style().isHorizontalWritingMode() ? layoutOverflowRect().maxX() : layoutOverflowRect().maxY(); }
virtual LayoutRect visualOverflowRect() const { return m_overflow ? m_overflow->visualOverflowRect() : borderBoxRect(); }
LayoutUnit logicalLeftVisualOverflow() const { return style().isHorizontalWritingMode() ? visualOverflowRect().x() : visualOverflowRect().y(); }
LayoutUnit logicalRightVisualOverflow() const { return style().isHorizontalWritingMode() ? visualOverflowRect().maxX() : visualOverflowRect().maxY(); }
LayoutRect overflowRectForPaintRejection(RenderNamedFlowFragment*) const;
void addLayoutOverflow(const LayoutRect&);
void addVisualOverflow(const LayoutRect&);
void clearOverflow();
virtual bool isTopLayoutOverflowAllowed() const { return !style().isLeftToRightDirection() && !isHorizontalWritingMode(); }
virtual bool isLeftLayoutOverflowAllowed() const { return !style().isLeftToRightDirection() && isHorizontalWritingMode(); }
void addVisualEffectOverflow();
LayoutRect applyVisualEffectOverflow(const LayoutRect&) const;
void addOverflowFromChild(RenderBox* child) { addOverflowFromChild(child, child->locationOffset()); }
void addOverflowFromChild(RenderBox* child, const LayoutSize& delta);
void updateLayerTransform();
LayoutUnit contentWidth() const { return clientWidth() - paddingLeft() - paddingRight(); }
LayoutUnit contentHeight() const { return clientHeight() - paddingTop() - paddingBottom(); }
LayoutUnit contentLogicalWidth() const { return style().isHorizontalWritingMode() ? contentWidth() : contentHeight(); }
LayoutUnit contentLogicalHeight() const { return style().isHorizontalWritingMode() ? contentHeight() : contentWidth(); }
virtual LayoutUnit offsetWidth() const override { return width(); }
virtual LayoutUnit offsetHeight() const override { return height(); }
virtual int pixelSnappedOffsetWidth() const override final;
virtual int pixelSnappedOffsetHeight() const override final;
LayoutUnit clientLeft() const { return borderLeft(); }
LayoutUnit clientTop() const { return borderTop(); }
LayoutUnit clientWidth() const;
LayoutUnit clientHeight() const;
LayoutUnit clientLogicalWidth() const { return style().isHorizontalWritingMode() ? clientWidth() : clientHeight(); }
LayoutUnit clientLogicalHeight() const { return style().isHorizontalWritingMode() ? clientHeight() : clientWidth(); }
LayoutUnit clientLogicalBottom() const { return borderBefore() + clientLogicalHeight(); }
LayoutRect clientBoxRect() const { return LayoutRect(clientLeft(), clientTop(), clientWidth(), clientHeight()); }
int pixelSnappedClientWidth() const;
int pixelSnappedClientHeight() const;
virtual int scrollLeft() const;
virtual int scrollTop() const;
virtual int scrollWidth() const;
virtual int scrollHeight() const;
virtual void setScrollLeft(int);
virtual void setScrollTop(int);
virtual LayoutUnit marginTop() const override { return m_marginBox.top(); }
virtual LayoutUnit marginBottom() const override { return m_marginBox.bottom(); }
virtual LayoutUnit marginLeft() const override { return m_marginBox.left(); }
virtual LayoutUnit marginRight() const override { return m_marginBox.right(); }
void setMarginTop(LayoutUnit margin) { m_marginBox.setTop(margin); }
void setMarginBottom(LayoutUnit margin) { m_marginBox.setBottom(margin); }
void setMarginLeft(LayoutUnit margin) { m_marginBox.setLeft(margin); }
void setMarginRight(LayoutUnit margin) { m_marginBox.setRight(margin); }
LayoutUnit marginLogicalLeft() const { return m_marginBox.logicalLeft(style().writingMode()); }
LayoutUnit marginLogicalRight() const { return m_marginBox.logicalRight(style().writingMode()); }
virtual LayoutUnit marginBefore(const RenderStyle* overrideStyle = 0) const override final { return m_marginBox.before((overrideStyle ? overrideStyle : &style())->writingMode()); }
virtual LayoutUnit marginAfter(const RenderStyle* overrideStyle = 0) const override final { return m_marginBox.after((overrideStyle ? overrideStyle : &style())->writingMode()); }
virtual LayoutUnit marginStart(const RenderStyle* overrideStyle = 0) const override final
{
const RenderStyle* styleToUse = overrideStyle ? overrideStyle : &style();
return m_marginBox.start(styleToUse->writingMode(), styleToUse->direction());
}
virtual LayoutUnit marginEnd(const RenderStyle* overrideStyle = 0) const override final
{
const RenderStyle* styleToUse = overrideStyle ? overrideStyle : &style();
return m_marginBox.end(styleToUse->writingMode(), styleToUse->direction());
}
void setMarginBefore(LayoutUnit value, const RenderStyle* overrideStyle = 0) { m_marginBox.setBefore((overrideStyle ? overrideStyle : &style())->writingMode(), value); }
void setMarginAfter(LayoutUnit value, const RenderStyle* overrideStyle = 0) { m_marginBox.setAfter((overrideStyle ? overrideStyle : &style())->writingMode(), value); }
void setMarginStart(LayoutUnit value, const RenderStyle* overrideStyle = 0)
{
const RenderStyle* styleToUse = overrideStyle ? overrideStyle : &style();
m_marginBox.setStart(styleToUse->writingMode(), styleToUse->direction(), value);
}
void setMarginEnd(LayoutUnit value, const RenderStyle* overrideStyle = 0)
{
const RenderStyle* styleToUse = overrideStyle ? overrideStyle : &style();
m_marginBox.setEnd(styleToUse->writingMode(), styleToUse->direction(), value);
}
enum MarginSign { PositiveMargin, NegativeMargin };
virtual bool isSelfCollapsingBlock() const { return false; }
virtual LayoutUnit collapsedMarginBefore() const { return marginBefore(); }
virtual LayoutUnit collapsedMarginAfter() const { return marginAfter(); }
virtual void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const override;
virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override;
LayoutRect reflectionBox() const;
int reflectionOffset() const;
LayoutRect reflectedRect(const LayoutRect&) const;
virtual void layout() override;
virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
virtual LayoutUnit minPreferredLogicalWidth() const override;
virtual LayoutUnit maxPreferredLogicalWidth() const override;
LayoutUnit overrideLogicalContentWidth() const;
LayoutUnit overrideLogicalContentHeight() const;
bool hasOverrideHeight() const;
bool hasOverrideWidth() const;
void setOverrideLogicalContentHeight(LayoutUnit);
void setOverrideLogicalContentWidth(LayoutUnit);
void clearOverrideSize();
void clearOverrideLogicalContentHeight();
void clearOverrideLogicalContentWidth();
#if ENABLE(CSS_GRID_LAYOUT)
LayoutUnit overrideContainingBlockContentLogicalWidth() const;
LayoutUnit overrideContainingBlockContentLogicalHeight() const;
bool hasOverrideContainingBlockLogicalWidth() const;
bool hasOverrideContainingBlockLogicalHeight() const;
void setOverrideContainingBlockContentLogicalWidth(LayoutUnit);
void setOverrideContainingBlockContentLogicalHeight(LayoutUnit);
void clearContainingBlockOverrideSize();
void clearOverrideContainingBlockContentLogicalHeight();
#endif
virtual LayoutSize offsetFromContainer(RenderObject*, const LayoutPoint&, bool* offsetDependsOnPoint = 0) const override;
LayoutUnit adjustBorderBoxLogicalWidthForBoxSizing(LayoutUnit width) const;
LayoutUnit adjustBorderBoxLogicalHeightForBoxSizing(LayoutUnit height) const;
LayoutUnit adjustContentBoxLogicalWidthForBoxSizing(LayoutUnit width) const;
LayoutUnit adjustContentBoxLogicalHeightForBoxSizing(LayoutUnit height) const;
struct ComputedMarginValues {
ComputedMarginValues()
: m_before(0)
, m_after(0)
, m_start(0)
, m_end(0)
{
}
LayoutUnit m_before;
LayoutUnit m_after;
LayoutUnit m_start;
LayoutUnit m_end;
};
struct LogicalExtentComputedValues {
LogicalExtentComputedValues()
: m_extent(0)
, m_position(0)
{
}
LayoutUnit m_extent;
LayoutUnit m_position;
ComputedMarginValues m_margins;
};
void computeInlineDirectionMargins(RenderBlock* containingBlock, LayoutUnit containerWidth, LayoutUnit childWidth, LayoutUnit& marginStart, LayoutUnit& marginEnd) const;
void computeBlockDirectionMargins(const RenderBlock* containingBlock, LayoutUnit& marginBefore, LayoutUnit& marginAfter) const;
void computeAndSetBlockDirectionMargins(const RenderBlock* containingBlock);
enum RenderBoxRegionInfoFlags { CacheRenderBoxRegionInfo, DoNotCacheRenderBoxRegionInfo };
LayoutRect borderBoxRectInRegion(RenderRegion*, RenderBoxRegionInfoFlags = CacheRenderBoxRegionInfo) const;
LayoutRect clientBoxRectInRegion(RenderRegion*) const;
RenderRegion* clampToStartAndEndRegions(RenderRegion*) const;
bool hasRegionRangeInFlowThread() const;
virtual LayoutUnit offsetFromLogicalTopOfFirstPage() const;
void positionLineBox(InlineElementBox&);
virtual std::unique_ptr<InlineElementBox> createInlineBox();
void dirtyLineBoxes(bool fullLayout);
InlineElementBox* inlineBoxWrapper() const { return m_inlineBoxWrapper; }
void setInlineBoxWrapper(InlineElementBox*);
void deleteLineBoxWrapper();
virtual LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const override;
virtual void computeRectForRepaint(const RenderLayerModelObject* repaintContainer, LayoutRect&, bool fixed = false) const override;
void repaintDuringLayoutIfMoved(const LayoutRect&);
virtual void repaintOverhangingFloats(bool paintAllDescendants);
virtual LayoutUnit containingBlockLogicalWidthForContent() const override;
LayoutUnit containingBlockLogicalHeightForContent(AvailableLogicalHeightType) const;
LayoutUnit containingBlockLogicalWidthForContentInRegion(RenderRegion*) const;
LayoutUnit containingBlockAvailableLineWidthInRegion(RenderRegion*) const;
LayoutUnit perpendicularContainingBlockLogicalHeight() const;
virtual void updateLogicalWidth();
virtual void updateLogicalHeight();
virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues&) const;
RenderBoxRegionInfo* renderBoxRegionInfo(RenderRegion*, RenderBoxRegionInfoFlags = CacheRenderBoxRegionInfo) const;
void computeLogicalWidthInRegion(LogicalExtentComputedValues&, RenderRegion* = 0) const;
bool stretchesToViewport() const
{
return document().inQuirksMode() && style().logicalHeight().isAuto() && !isFloatingOrOutOfFlowPositioned() && (isRoot() || isBody()) && !isInline();
}
virtual LayoutSize intrinsicSize() const { return LayoutSize(); }
LayoutUnit intrinsicLogicalWidth() const { return style().isHorizontalWritingMode() ? intrinsicSize().width() : intrinsicSize().height(); }
LayoutUnit intrinsicLogicalHeight() const { return style().isHorizontalWritingMode() ? intrinsicSize().height() : intrinsicSize().width(); }
bool sizesLogicalWidthToFitContent(SizeType) const;
LayoutUnit shrinkLogicalWidthToAvoidFloats(LayoutUnit childMarginStart, LayoutUnit childMarginEnd, const RenderBlock* cb, RenderRegion*) const;
LayoutUnit computeLogicalWidthInRegionUsing(SizeType, Length logicalWidth, LayoutUnit availableLogicalWidth, const RenderBlock* containingBlock, RenderRegion*) const;
LayoutUnit computeLogicalHeightUsing(const Length& height) const;
LayoutUnit computeContentLogicalHeight(const Length& height) const;
LayoutUnit computeContentAndScrollbarLogicalHeightUsing(const Length& height) const;
LayoutUnit computeReplacedLogicalWidthUsing(Length width) const;
LayoutUnit computeReplacedLogicalWidthRespectingMinMaxWidth(LayoutUnit logicalWidth, ShouldComputePreferred = ComputeActual) const;
LayoutUnit computeReplacedLogicalHeightUsing(Length height) const;
LayoutUnit computeReplacedLogicalHeightRespectingMinMaxHeight(LayoutUnit logicalHeight) const;
virtual LayoutUnit computeReplacedLogicalWidth(ShouldComputePreferred = ComputeActual) const;
virtual LayoutUnit computeReplacedLogicalHeight() const;
static bool percentageLogicalHeightIsResolvableFromBlock(const RenderBlock* containingBlock, bool outOfFlowPositioned);
LayoutUnit computePercentageLogicalHeight(const Length& height) const;
virtual LayoutUnit availableLogicalWidth() const { return contentLogicalWidth(); }
virtual LayoutUnit availableLogicalHeight(AvailableLogicalHeightType) const;
LayoutUnit availableLogicalHeightUsing(const Length&, AvailableLogicalHeightType) const;
LayoutUnit availableWidth() const { return style().isHorizontalWritingMode() ? availableLogicalWidth() : availableLogicalHeight(IncludeMarginBorderPadding); }
LayoutUnit availableHeight() const { return style().isHorizontalWritingMode() ? availableLogicalHeight(IncludeMarginBorderPadding) : availableLogicalWidth(); }
virtual int verticalScrollbarWidth() const;
int horizontalScrollbarHeight() const;
int instrinsicScrollbarLogicalWidth() const;
int scrollbarLogicalHeight() const { return style().isHorizontalWritingMode() ? horizontalScrollbarHeight() : verticalScrollbarWidth(); }
virtual bool scroll(ScrollDirection, ScrollGranularity, float multiplier = 1, Element** stopElement = nullptr, RenderBox* startBox = nullptr, const IntPoint& wheelEventAbsolutePoint = IntPoint());
virtual bool logicalScroll(ScrollLogicalDirection, ScrollGranularity, float multiplier = 1, Element** stopElement = 0);
bool canBeScrolledAndHasScrollableArea() const;
virtual bool canBeProgramaticallyScrolled() const;
virtual void autoscroll(const IntPoint&);
bool canAutoscroll() const;
IntSize calculateAutoscrollDirection(const IntPoint& windowPoint) const;
static RenderBox* findAutoscrollable(RenderObject*);
virtual void stopAutoscroll() { }
virtual void panScroll(const IntPoint&);
bool hasAutoVerticalScrollbar() const { return hasOverflowClip() && (style().overflowY() == OAUTO || style().overflowY() == OOVERLAY); }
bool hasAutoHorizontalScrollbar() const { return hasOverflowClip() && (style().overflowX() == OAUTO || style().overflowX() == OOVERLAY); }
bool scrollsOverflow() const { return scrollsOverflowX() || scrollsOverflowY(); }
bool scrollsOverflowX() const { return hasOverflowClip() && (style().overflowX() == OSCROLL || hasAutoHorizontalScrollbar()); }
bool scrollsOverflowY() const { return hasOverflowClip() && (style().overflowY() == OSCROLL || hasAutoVerticalScrollbar()); }
bool hasScrollableOverflowX() const { return scrollsOverflowX() && scrollWidth() != clientWidth(); }
bool hasScrollableOverflowY() const { return scrollsOverflowY() && scrollHeight() != clientHeight(); }
bool usesCompositedScrolling() const;
bool hasUnsplittableScrollingOverflow() const;
bool isUnsplittableForPagination() const;
virtual LayoutRect localCaretRect(InlineBox*, int caretOffset, LayoutUnit* extraWidthToEndOfLine = 0) override;
virtual LayoutRect overflowClipRect(const LayoutPoint& location, RenderRegion*, OverlayScrollbarSizeRelevancy = IgnoreOverlayScrollbarSize, PaintPhase = PaintPhaseBlockBackground);
virtual LayoutRect overflowClipRectForChildLayers(const LayoutPoint& location, RenderRegion* region, OverlayScrollbarSizeRelevancy relevancy) { return overflowClipRect(location, region, relevancy); }
LayoutRect clipRect(const LayoutPoint& location, RenderRegion*);
virtual bool hasControlClip() const { return false; }
virtual LayoutRect controlClipRect(const LayoutPoint&) const { return LayoutRect(); }
bool pushContentsClip(PaintInfo&, const LayoutPoint& accumulatedOffset);
void popContentsClip(PaintInfo&, PaintPhase originalPhase, const LayoutPoint& accumulatedOffset);
virtual void paintObject(PaintInfo&, const LayoutPoint&) { ASSERT_NOT_REACHED(); }
virtual void paintBoxDecorations(PaintInfo&, const LayoutPoint&);
virtual void paintMask(PaintInfo&, const LayoutPoint&);
virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) override;
bool tryLayoutDoingPositionedMovementOnly()
{
LayoutUnit oldWidth = width();
updateLogicalWidth();
if (oldWidth != width())
return false;
updateLogicalHeight();
return true;
}
LayoutRect maskClipRect();
virtual VisiblePosition positionForPoint(const LayoutPoint&, const RenderRegion*) override;
RenderBlockFlow* outermostBlockContainingFloatingObject();
void removeFloatingOrPositionedChildFromBlockLists();
RenderLayer* enclosingFloatPaintingLayer() const;
virtual int firstLineBaseline() const { return -1; }
virtual int inlineBlockBaseline(LineDirectionMode) const { return -1; }
bool shrinkToAvoidFloats() const;
virtual bool avoidsFloats() const;
virtual void markForPaginationRelayoutIfNeeded() { }
bool isWritingModeRoot() const { return !parent() || parent()->style().writingMode() != style().writingMode(); }
bool isDeprecatedFlexItem() const { return !isInline() && !isFloatingOrOutOfFlowPositioned() && parent() && parent()->isDeprecatedFlexibleBox(); }
bool isFlexItemIncludingDeprecated() const { return !isInline() && !isFloatingOrOutOfFlowPositioned() && parent() && parent()->isFlexibleBoxIncludingDeprecated(); }
virtual LayoutUnit lineHeight(bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const override;
virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const override;
virtual LayoutUnit offsetLeft() const override;
virtual LayoutUnit offsetTop() const override;
LayoutPoint flipForWritingModeForChild(const RenderBox* child, const LayoutPoint&) const;
LayoutUnit flipForWritingMode(LayoutUnit position) const; LayoutPoint flipForWritingMode(const LayoutPoint&) const;
LayoutSize flipForWritingMode(const LayoutSize&) const;
void flipForWritingMode(LayoutRect&) const;
FloatPoint flipForWritingMode(const FloatPoint&) const;
void flipForWritingMode(FloatRect&) const;
LayoutPoint topLeftLocation() const;
LayoutSize topLeftLocationOffset() const;
LayoutRect logicalVisualOverflowRectForPropagation(RenderStyle*) const;
LayoutRect visualOverflowRectForPropagation(RenderStyle*) const;
LayoutRect logicalLayoutOverflowRectForPropagation(RenderStyle*) const;
LayoutRect layoutOverflowRectForPropagation(RenderStyle*) const;
bool hasRenderOverflow() const { return m_overflow; }
bool hasVisualOverflow() const { return m_overflow && !borderBoxRect().contains(m_overflow->visualOverflowRect()); }
virtual bool needsPreferredWidthsRecalculation() const;
virtual void computeIntrinsicRatioInformation(FloatSize& , double& ) const { }
IntSize scrolledContentOffset() const;
LayoutSize cachedSizeForOverflowClip() const;
void applyCachedClipAndScrollOffsetForRepaint(LayoutRect& paintRect) const;
virtual bool hasRelativeDimensions() const;
virtual bool hasRelativeLogicalHeight() const;
bool hasHorizontalLayoutOverflow() const
{
if (!m_overflow)
return false;
LayoutRect layoutOverflowRect = m_overflow->layoutOverflowRect();
flipForWritingMode(layoutOverflowRect);
return layoutOverflowRect.x() < x() || layoutOverflowRect.maxX() > x() + logicalWidth();
}
bool hasVerticalLayoutOverflow() const
{
if (!m_overflow)
return false;
LayoutRect layoutOverflowRect = m_overflow->layoutOverflowRect();
flipForWritingMode(layoutOverflowRect);
return layoutOverflowRect.y() < y() || layoutOverflowRect.maxY() > y() + logicalHeight();
}
virtual RenderBox* createAnonymousBoxWithSameTypeAs(const RenderObject*) const
{
ASSERT_NOT_REACHED();
return 0;
}
bool hasSameDirectionAs(const RenderBox* object) const { return style().direction() == object->style().direction(); }
#if ENABLE(CSS_SHAPES)
ShapeOutsideInfo* shapeOutsideInfo() const
{
return ShapeOutsideInfo::isEnabledFor(*this) ? ShapeOutsideInfo::info(*this) : nullptr;
}
void markShapeOutsideDependentsForLayout()
{
if (isFloating())
removeFloatingOrPositionedChildFromBlockLists();
}
#endif
bool canHaveOutsideRegionRange() const { return !isInFlowRenderFlowThread(); }
virtual bool needsLayoutAfterRegionRangeChange() const { return false; }
protected:
RenderBox(Element&, PassRef<RenderStyle>, unsigned baseTypeFlags);
RenderBox(Document&, PassRef<RenderStyle>, unsigned baseTypeFlags);
virtual void willBeDestroyed() override;
virtual void styleWillChange(StyleDifference, const RenderStyle& newStyle) override;
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
virtual void updateFromStyle() override;
bool getBackgroundPaintedExtent(LayoutRect&) const;
virtual bool foregroundIsKnownToBeOpaqueInRect(const LayoutRect& localRect, unsigned maxDepthToTest) const;
virtual bool computeBackgroundIsKnownToBeObscured() override;
void paintBackground(const PaintInfo&, const LayoutRect&, BackgroundBleedAvoidance = BackgroundBleedNone);
void paintFillLayer(const PaintInfo&, const Color&, const FillLayer*, const LayoutRect&, BackgroundBleedAvoidance, CompositeOperator, RenderElement* backgroundObject, BaseBackgroundColorUsage = BaseBackgroundColorUse);
void paintFillLayers(const PaintInfo&, const Color&, const FillLayer*, const LayoutRect&, BackgroundBleedAvoidance = BackgroundBleedNone, CompositeOperator = CompositeSourceOver, RenderElement* backgroundObject = nullptr);
void paintMaskImages(const PaintInfo&, const LayoutRect&);
BackgroundBleedAvoidance determineBackgroundBleedAvoidance(GraphicsContext*) const;
bool backgroundHasOpaqueTopLayer() const;
void computePositionedLogicalWidth(LogicalExtentComputedValues&, RenderRegion* = 0) const;
LayoutUnit computeIntrinsicLogicalWidthUsing(Length logicalWidthLength, LayoutUnit availableLogicalWidth, LayoutUnit borderAndPadding) const;
virtual bool shouldComputeSizeAsReplaced() const { return isReplaced() && !isInlineBlockOrInlineTable(); }
virtual void mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0) const override;
virtual const RenderObject* pushMappingToContainer(const RenderLayerModelObject*, RenderGeometryMap&) const override;
virtual void mapAbsoluteToLocalPoint(MapCoordinatesFlags, TransformState&) const override;
void paintRootBoxFillLayers(const PaintInfo&);
RenderObject* splitAnonymousBoxesAroundChild(RenderObject* beforeChild);
private:
#if ENABLE(CSS_SHAPES)
void updateShapeOutsideInfoAfterStyleChange(const RenderStyle&, const RenderStyle* oldStyle);
#endif
bool scrollLayer(ScrollDirection, ScrollGranularity, float multiplier, Element** stopElement);
bool fixedElementLaysOutRelativeToFrame(const FrameView&) const;
bool includeVerticalScrollbarSize() const;
bool includeHorizontalScrollbarSize() const;
bool repaintLayerRectsForImage(WrappedImagePtr image, const FillLayer* layers, bool drawingBackground);
bool skipContainingBlockForPercentHeightCalculation(const RenderBox* containingBlock, bool isPerpendicularWritingMode) const;
LayoutUnit containingBlockLogicalWidthForPositioned(const RenderBoxModelObject* containingBlock, RenderRegion* = 0, bool checkForPerpendicularWritingMode = true) const;
LayoutUnit containingBlockLogicalHeightForPositioned(const RenderBoxModelObject* containingBlock, bool checkForPerpendicularWritingMode = true) const;
LayoutUnit viewLogicalHeightForPercentages() const;
void computePositionedLogicalHeight(LogicalExtentComputedValues&) const;
void computePositionedLogicalWidthUsing(Length logicalWidth, const RenderBoxModelObject* containerBlock, TextDirection containerDirection,
LayoutUnit containerLogicalWidth, LayoutUnit bordersPlusPadding,
Length logicalLeft, Length logicalRight, Length marginLogicalLeft, Length marginLogicalRight,
LogicalExtentComputedValues&) const;
void computePositionedLogicalHeightUsing(Length logicalHeightLength, const RenderBoxModelObject* containerBlock,
LayoutUnit containerLogicalHeight, LayoutUnit bordersPlusPadding, LayoutUnit logicalHeight,
Length logicalTop, Length logicalBottom, Length marginLogicalTop, Length marginLogicalBottom,
LogicalExtentComputedValues&) const;
void computePositionedLogicalHeightReplaced(LogicalExtentComputedValues&) const;
void computePositionedLogicalWidthReplaced(LogicalExtentComputedValues&) const;
LayoutUnit fillAvailableMeasure(LayoutUnit availableLogicalWidth) const;
LayoutUnit fillAvailableMeasure(LayoutUnit availableLogicalWidth, LayoutUnit& marginStart, LayoutUnit& marginEnd) const;
virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const;
virtual void computePreferredLogicalWidths() { setPreferredLogicalWidthsDirty(false); }
virtual LayoutRect frameRectForStickyPositioning() const override final { return frameRect(); }
private:
LayoutRect m_frameRect;
protected:
LayoutBoxExtent m_marginBox;
LayoutUnit m_minPreferredLogicalWidth;
LayoutUnit m_maxPreferredLogicalWidth;
InlineElementBox* m_inlineBoxWrapper;
RefPtr<RenderOverflow> m_overflow;
private:
static bool s_hadOverflowClip;
};
RENDER_OBJECT_TYPE_CASTS(RenderBox, isBox())
inline RenderBox* RenderBox::previousSiblingBox() const
{
return toRenderBox(previousSibling());
}
inline RenderBox* RenderBox::nextSiblingBox() const
{
return toRenderBox(nextSibling());
}
inline RenderBox* RenderBox::parentBox() const
{
return toRenderBox(parent());
}
inline RenderBox* RenderBox::firstChildBox() const
{
return toRenderBox(firstChild());
}
inline RenderBox* RenderBox::lastChildBox() const
{
return toRenderBox(lastChild());
}
inline void RenderBox::setInlineBoxWrapper(InlineElementBox* boxWrapper)
{
if (boxWrapper) {
ASSERT(!m_inlineBoxWrapper);
if (UNLIKELY(m_inlineBoxWrapper != 0))
deleteLineBoxWrapper();
}
m_inlineBoxWrapper = boxWrapper;
}
}
#endif // RenderBox_h