Source/core/layout/style/LayoutStyle.cpp - Issue 1033943002: Rename LayoutStyle to papayawhip

Unified Diff: Source/core/layout/style/LayoutStyle.cpp

Issue 1033943002: Rename LayoutStyle to papayawhip (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: ensureComputedStyle Created 5 years, 9 months ago

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Index: Source/core/layout/style/LayoutStyle.cpp

diff --git a/Source/core/layout/style/LayoutStyle.cpp b/Source/core/layout/style/LayoutStyle.cpp

deleted file mode 100644

index 4a2e5f8d56e4693c60445232479c043574898310..0000000000000000000000000000000000000000

--- a/Source/core/layout/style/LayoutStyle.cpp

+++ /dev/null

@@ -1,1731 +0,0 @@

-/*

- *

- * This library is free software; you can redistribute it and/or

- * modify it under the terms of the GNU Library General Public

- * License as published by the Free Software Foundation; either

- * version 2 of the License, or (at your option) any later version.

- *

- * This library is distributed in the hope that it will be useful,

- * but WITHOUT ANY WARRANTY; without even the implied warranty of

- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

- * Library General Public License for more details.

- *

- * You should have received a copy of the GNU Library General Public License

- * along with this library; see the file COPYING.LIB. If not, write to

- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

- * Boston, MA 02110-1301, USA.

- *

- */

-#include "config.h"

-#include "core/layout/style/LayoutStyle.h"

-#include "core/css/resolver/StyleResolver.h"

-#include "core/layout/LayoutTheme.h"

-#include "core/layout/TextAutosizer.h"

-#include "core/layout/style/AppliedTextDecoration.h"

-#include "core/layout/style/BorderEdge.h"

-#include "core/layout/style/ContentData.h"

-#include "core/layout/style/DataEquivalency.h"

-#include "core/layout/style/LayoutStyleConstants.h"

-#include "core/layout/style/PathStyleMotionPath.h"

-#include "core/layout/style/QuotesData.h"

-#include "core/layout/style/ShadowList.h"

-#include "core/layout/style/StyleImage.h"

-#include "core/layout/style/StyleInheritedData.h"

-#include "platform/LengthFunctions.h"

-#include "platform/RuntimeEnabledFeatures.h"

-#include "platform/fonts/Font.h"

-#include "platform/fonts/FontSelector.h"

-#include "platform/geometry/FloatRoundedRect.h"

-#include "wtf/MathExtras.h"

-#include <algorithm>

-namespace blink {

-struct SameSizeAsBorderValue {

- RGBA32 m_color;

- unsigned m_width;

-};

-static_assert(sizeof(BorderValue) == sizeof(SameSizeAsBorderValue), "BorderValue should stay small");

-struct SameSizeAsLayoutStyle : public RefCounted<SameSizeAsLayoutStyle> {

- void* dataRefs[7];

- void* ownPtrs[1];

- void* dataRefSvgStyle;

- struct InheritedFlags {

- unsigned m_bitfields[2];

- } inherited_flags;

- struct NonInheritedFlags {

- unsigned m_bitfields[2];

- } noninherited_flags;

-};

-static_assert(sizeof(LayoutStyle) == sizeof(SameSizeAsLayoutStyle), "LayoutStyle should stay small");

-PassRefPtr<LayoutStyle> LayoutStyle::create()

- return adoptRef(new LayoutStyle());

-PassRefPtr<LayoutStyle> LayoutStyle::createInitialStyle()

- return adoptRef(new LayoutStyle(InitialStyle));

-PassRefPtr<LayoutStyle> LayoutStyle::createAnonymousStyleWithDisplay(const LayoutStyle& parentStyle, EDisplay display)

- RefPtr<LayoutStyle> newStyle = LayoutStyle::create();

- newStyle->inheritFrom(parentStyle);

- newStyle->inheritUnicodeBidiFrom(parentStyle);

- newStyle->setDisplay(display);

- return newStyle;

-PassRefPtr<LayoutStyle> LayoutStyle::clone(const LayoutStyle& other)

- return adoptRef(new LayoutStyle(other));

-ALWAYS_INLINE LayoutStyle::LayoutStyle()

- : m_box(initialStyle()->m_box)

- , visual(initialStyle()->visual)

- , m_background(initialStyle()->m_background)

- , surround(initialStyle()->surround)

- , rareNonInheritedData(initialStyle()->rareNonInheritedData)

- , rareInheritedData(initialStyle()->rareInheritedData)

- , inherited(initialStyle()->inherited)

- , m_svgStyle(initialStyle()->m_svgStyle)

- setBitDefaults(); // Would it be faster to copy this from the default style?

- static_assert((sizeof(InheritedFlags) <= 8), "InheritedFlags should not grow");

- static_assert((sizeof(NonInheritedFlags) <= 8), "NonInheritedFlags should not grow");

-ALWAYS_INLINE LayoutStyle::LayoutStyle(InitialStyleTag)

- setBitDefaults();

- m_box.init();

- visual.init();

- m_background.init();

- surround.init();

- rareNonInheritedData.init();

- rareNonInheritedData.access()->m_deprecatedFlexibleBox.init();

- rareNonInheritedData.access()->m_flexibleBox.init();

- rareNonInheritedData.access()->m_multiCol.init();

- rareNonInheritedData.access()->m_transform.init();

- rareNonInheritedData.access()->m_willChange.init();

- rareNonInheritedData.access()->m_filter.init();

- rareNonInheritedData.access()->m_grid.init();

- rareNonInheritedData.access()->m_gridItem.init();

- rareInheritedData.init();

- inherited.init();

- m_svgStyle.init();

-ALWAYS_INLINE LayoutStyle::LayoutStyle(const LayoutStyle& o)

- : RefCounted<LayoutStyle>()

- , m_box(o.m_box)

- , visual(o.visual)

- , m_background(o.m_background)

- , surround(o.surround)

- , rareNonInheritedData(o.rareNonInheritedData)

- , rareInheritedData(o.rareInheritedData)

- , inherited(o.inherited)

- , m_svgStyle(o.m_svgStyle)

- , inherited_flags(o.inherited_flags)

- , noninherited_flags(o.noninherited_flags)

-static StyleRecalcChange diffPseudoStyles(const LayoutStyle& oldStyle, const LayoutStyle& newStyle)

- // If the pseudoStyles have changed, we want any StyleRecalcChange that is not NoChange

- // because setStyle will do the right thing with anything else.

- if (!oldStyle.hasAnyPublicPseudoStyles())

- return NoChange;

- for (PseudoId pseudoId = FIRST_PUBLIC_PSEUDOID; pseudoId < FIRST_INTERNAL_PSEUDOID; pseudoId = static_cast<PseudoId>(pseudoId + 1)) {

- if (!oldStyle.hasPseudoStyle(pseudoId))

- continue;

- const LayoutStyle* newPseudoStyle = newStyle.getCachedPseudoStyle(pseudoId);

- if (!newPseudoStyle)

- return NoInherit;

- const LayoutStyle* oldPseudoStyle = oldStyle.getCachedPseudoStyle(pseudoId);

- if (oldPseudoStyle && *oldPseudoStyle != *newPseudoStyle)

- return NoInherit;

- }

- return NoChange;

-StyleRecalcChange LayoutStyle::stylePropagationDiff(const LayoutStyle* oldStyle, const LayoutStyle* newStyle)

- if ((!oldStyle && newStyle) || (oldStyle && !newStyle))

- return Reattach;

- if (!oldStyle && !newStyle)

- return NoChange;

- if (oldStyle->display() != newStyle->display()

- || oldStyle->hasPseudoStyle(FIRST_LETTER) != newStyle->hasPseudoStyle(FIRST_LETTER)

- || oldStyle->columnSpan() != newStyle->columnSpan()

- || !oldStyle->contentDataEquivalent(newStyle)

- || oldStyle->hasTextCombine() != newStyle->hasTextCombine()

- || oldStyle->justifyItems() != newStyle->justifyItems()

- || oldStyle->alignItems() != newStyle->alignItems())

- return Reattach;

- if (oldStyle->inheritedNotEqual(*newStyle))

- return Inherit;

- if (*oldStyle == *newStyle)

- return diffPseudoStyles(*oldStyle, *newStyle);

- if (oldStyle->hasExplicitlyInheritedProperties())

- return Inherit;

- return NoInherit;

-ItemPosition LayoutStyle::resolveAlignment(const LayoutStyle& parentStyle, const LayoutStyle& childStyle, ItemPosition resolvedAutoPositionForLayoutObject)

- // The auto keyword computes to the parent's align-items computed value, or to "stretch", if not set or "auto".

- if (childStyle.alignSelf() == ItemPositionAuto)

- return (parentStyle.alignItems() == ItemPositionAuto) ? resolvedAutoPositionForLayoutObject : parentStyle.alignItems();

- return childStyle.alignSelf();

-ItemPosition LayoutStyle::resolveJustification(const LayoutStyle& parentStyle, const LayoutStyle& childStyle, ItemPosition resolvedAutoPositionForLayoutObject)

- if (childStyle.justifySelf() == ItemPositionAuto)

- return (parentStyle.justifyItems() == ItemPositionAuto) ? resolvedAutoPositionForLayoutObject : parentStyle.justifyItems();

- return childStyle.justifySelf();

-void LayoutStyle::inheritFrom(const LayoutStyle& inheritParent, IsAtShadowBoundary isAtShadowBoundary)

- if (isAtShadowBoundary == AtShadowBoundary) {

- // Even if surrounding content is user-editable, shadow DOM should act as a single unit, and not necessarily be editable

- EUserModify currentUserModify = userModify();

- rareInheritedData = inheritParent.rareInheritedData;

- setUserModify(currentUserModify);

- } else {

- rareInheritedData = inheritParent.rareInheritedData;

- }

- inherited = inheritParent.inherited;

- inherited_flags = inheritParent.inherited_flags;

- if (m_svgStyle != inheritParent.m_svgStyle)

- m_svgStyle.access()->inheritFrom(inheritParent.m_svgStyle.get());

-void LayoutStyle::copyNonInheritedFromCached(const LayoutStyle& other)

- m_box = other.m_box;

- visual = other.visual;

- m_background = other.m_background;

- surround = other.surround;

- rareNonInheritedData = other.rareNonInheritedData;

- // The flags are copied one-by-one because noninherited_flags contains a bunch of stuff other than real style data.

- // See comments for each skipped flag below.

- noninherited_flags.effectiveDisplay = other.noninherited_flags.effectiveDisplay;

- noninherited_flags.originalDisplay = other.noninherited_flags.originalDisplay;

- noninherited_flags.overflowX = other.noninherited_flags.overflowX;

- noninherited_flags.overflowY = other.noninherited_flags.overflowY;

- noninherited_flags.verticalAlign = other.noninherited_flags.verticalAlign;

- noninherited_flags.clear = other.noninherited_flags.clear;

- noninherited_flags.position = other.noninherited_flags.position;

- noninherited_flags.floating = other.noninherited_flags.floating;

- noninherited_flags.tableLayout = other.noninherited_flags.tableLayout;

- noninherited_flags.unicodeBidi = other.noninherited_flags.unicodeBidi;

- noninherited_flags.hasViewportUnits = other.noninherited_flags.hasViewportUnits;

- noninherited_flags.pageBreakBefore = other.noninherited_flags.pageBreakBefore;

- noninherited_flags.pageBreakAfter = other.noninherited_flags.pageBreakAfter;

- noninherited_flags.pageBreakInside = other.noninherited_flags.pageBreakInside;

- // Correctly set during selector matching:

- // noninherited_flags.styleType

- // noninherited_flags.pseudoBits

- // Set correctly while computing style for children:

- // noninherited_flags.explicitInheritance

- // unique() styles are not cacheable.

- ASSERT(!other.noninherited_flags.unique);

- // The following flags are set during matching before we decide that we get a

- // match in the MatchedPropertiesCache which in turn calls this method. The

- // reason why we don't copy these flags is that they're already correctly set

- // and that they may differ between elements which have the same set of matched

- // properties. For instance, given the rule:

- //

- // :-webkit-any(:hover, :focus) { background-color: green }"

- //

- // A hovered element, and a focused element may use the same cached matched

- // properties here, but the affectedBy flags will be set differently based on

- // the matching order of the :-webkit-any components.

- //

- // noninherited_flags.emptyState

- // noninherited_flags.affectedByFocus

- // noninherited_flags.affectedByHover

- // noninherited_flags.affectedByActive

- // noninherited_flags.affectedByDrag

- // noninherited_flags.isLink

- if (m_svgStyle != other.m_svgStyle)

- m_svgStyle.access()->copyNonInheritedFromCached(other.m_svgStyle.get());

- ASSERT(zoom() == initialZoom());

-bool LayoutStyle::operator==(const LayoutStyle& o) const

- // compare everything except the pseudoStyle pointer

- return inherited_flags == o.inherited_flags

- && noninherited_flags == o.noninherited_flags

- && m_box == o.m_box

- && visual == o.visual

- && m_background == o.m_background

- && surround == o.surround

- && rareNonInheritedData == o.rareNonInheritedData

- && rareInheritedData == o.rareInheritedData

- && inherited == o.inherited

- && m_svgStyle == o.m_svgStyle;

-bool LayoutStyle::isStyleAvailable() const

- return this != StyleResolver::styleNotYetAvailable();

-bool LayoutStyle::hasUniquePseudoStyle() const

- if (!m_cachedPseudoStyles || styleType() != NOPSEUDO)

- return false;

- for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) {

- const LayoutStyle& pseudoStyle = *m_cachedPseudoStyles->at(i);

- if (pseudoStyle.unique())

- return true;

- }

- return false;

-LayoutStyle* LayoutStyle::getCachedPseudoStyle(PseudoId pid) const

- if (!m_cachedPseudoStyles || !m_cachedPseudoStyles->size())

- return 0;

- if (styleType() != NOPSEUDO)

- return 0;

- for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) {

- LayoutStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get();

- if (pseudoStyle->styleType() == pid)

- return pseudoStyle;

- }

- return 0;

-LayoutStyle* LayoutStyle::addCachedPseudoStyle(PassRefPtr<LayoutStyle> pseudo)

- if (!pseudo)

- return 0;

- ASSERT(pseudo->styleType() > NOPSEUDO);

- LayoutStyle* result = pseudo.get();

- if (!m_cachedPseudoStyles)

- m_cachedPseudoStyles = adoptPtr(new PseudoStyleCache);

- m_cachedPseudoStyles->append(pseudo);

- return result;

-void LayoutStyle::removeCachedPseudoStyle(PseudoId pid)

- if (!m_cachedPseudoStyles)

- return;

- for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) {

- LayoutStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get();

- if (pseudoStyle->styleType() == pid) {

- m_cachedPseudoStyles->remove(i);

- return;

- }

-bool LayoutStyle::inheritedNotEqual(const LayoutStyle& other) const

- return inherited_flags != other.inherited_flags

- || inherited != other.inherited

- || font().loadingCustomFonts() != other.font().loadingCustomFonts()

- || m_svgStyle->inheritedNotEqual(other.m_svgStyle.get())

- || rareInheritedData != other.rareInheritedData;

-bool LayoutStyle::inheritedDataShared(const LayoutStyle& other) const

- // This is a fast check that only looks if the data structures are shared.

- return inherited_flags == other.inherited_flags

- && inherited.get() == other.inherited.get()

- && m_svgStyle.get() == other.m_svgStyle.get()

- && rareInheritedData.get() == other.rareInheritedData.get();

-static bool dependenceOnContentHeightHasChanged(const LayoutStyle& a, const LayoutStyle& b)

- // If top or bottom become auto/non-auto then it means we either have to solve height based

- // on the content or stop doing so (http://www.w3.org/TR/CSS2/visudet.html#abs-non-replaced-height)

- // - either way requires a layout.

- return a.logicalTop().isAuto() != b.logicalTop().isAuto() || a.logicalBottom().isAuto() != b.logicalBottom().isAuto();

-StyleDifference LayoutStyle::visualInvalidationDiff(const LayoutStyle& other) const

- // Note, we use .get() on each DataRef below because DataRef::operator== will do a deep

- // compare, which is duplicate work when we're going to compare each property inside

- // this function anyway.

- StyleDifference diff;

- if (m_svgStyle.get() != other.m_svgStyle.get())

- diff = m_svgStyle->diff(other.m_svgStyle.get());

- if ((!diff.needsFullLayout() || !diff.needsPaintInvalidation()) && diffNeedsFullLayoutAndPaintInvalidation(other)) {

- diff.setNeedsFullLayout();

- diff.setNeedsPaintInvalidationObject();

- }

- if (!diff.needsFullLayout() && diffNeedsFullLayout(other))

- diff.setNeedsFullLayout();

- if (!diff.needsFullLayout() && surround->margin != other.surround->margin) {

- // Relative-positioned elements collapse their margins so need a full layout.

- if (position() == AbsolutePosition || position() == FixedPosition)

- diff.setNeedsPositionedMovementLayout();

- else

- diff.setNeedsFullLayout();

- }

- if (!diff.needsFullLayout() && position() != StaticPosition && surround->offset != other.surround->offset) {

- // Optimize for the case where a positioned layer is moving but not changing size.

- if (dependenceOnContentHeightHasChanged(*this, other))

- diff.setNeedsFullLayout();

- else

- diff.setNeedsPositionedMovementLayout();

- }

- if (diffNeedsPaintInvalidationLayer(other))

- diff.setNeedsPaintInvalidationLayer();

- else if (diffNeedsPaintInvalidationObject(other))

- diff.setNeedsPaintInvalidationObject();

- updatePropertySpecificDifferences(other, diff);

- // Cursors are not checked, since they will be set appropriately in response to mouse events,

- // so they don't need to cause any paint invalidation or layout.

- // Animations don't need to be checked either. We always set the new style on the layoutObject, so we will get a chance to fire off

- // the resulting transition properly.

- return diff;

-bool LayoutStyle::diffNeedsFullLayoutAndPaintInvalidation(const LayoutStyle& other) const

- // FIXME: Not all cases in this method need both full layout and paint invalidation.

- // Should move cases into diffNeedsFullLayout() if

- // - don't need paint invalidation at all;

- // - or the layoutObject knows how to exactly invalidate paints caused by the layout change

- // instead of forced full paint invalidation.

- if (surround.get() != other.surround.get()) {

- // If our border widths change, then we need to layout. Other changes to borders only necessitate a paint invalidation.

- if (borderLeftWidth() != other.borderLeftWidth()

- || borderTopWidth() != other.borderTopWidth()

- || borderBottomWidth() != other.borderBottomWidth()

- || borderRightWidth() != other.borderRightWidth())

- return true;

- }

- if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) {

- if (rareNonInheritedData->m_appearance != other.rareNonInheritedData->m_appearance

- || rareNonInheritedData->marginBeforeCollapse != other.rareNonInheritedData->marginBeforeCollapse

- || rareNonInheritedData->marginAfterCollapse != other.rareNonInheritedData->marginAfterCollapse

- || rareNonInheritedData->lineClamp != other.rareNonInheritedData->lineClamp

- || rareNonInheritedData->textOverflow != other.rareNonInheritedData->textOverflow

- || rareNonInheritedData->m_wrapFlow != other.rareNonInheritedData->m_wrapFlow

- || rareNonInheritedData->m_wrapThrough != other.rareNonInheritedData->m_wrapThrough

- || rareNonInheritedData->m_shapeMargin != other.rareNonInheritedData->m_shapeMargin

- || rareNonInheritedData->m_order != other.rareNonInheritedData->m_order

- || rareNonInheritedData->m_justifyContent != other.rareNonInheritedData->m_justifyContent

- || rareNonInheritedData->m_grid.get() != other.rareNonInheritedData->m_grid.get()

- || rareNonInheritedData->m_gridItem.get() != other.rareNonInheritedData->m_gridItem.get()

- || rareNonInheritedData->m_textCombine != other.rareNonInheritedData->m_textCombine

- || rareNonInheritedData->hasFilters() != other.rareNonInheritedData->hasFilters())

- return true;

- if (rareNonInheritedData->m_deprecatedFlexibleBox.get() != other.rareNonInheritedData->m_deprecatedFlexibleBox.get()

- && *rareNonInheritedData->m_deprecatedFlexibleBox.get() != *other.rareNonInheritedData->m_deprecatedFlexibleBox.get())

- return true;

- if (rareNonInheritedData->m_flexibleBox.get() != other.rareNonInheritedData->m_flexibleBox.get()

- && *rareNonInheritedData->m_flexibleBox.get() != *other.rareNonInheritedData->m_flexibleBox.get())

- return true;

- // FIXME: We should add an optimized form of layout that just recomputes visual overflow.

- if (!rareNonInheritedData->shadowDataEquivalent(*other.rareNonInheritedData.get()))

- return true;

- if (!rareNonInheritedData->reflectionDataEquivalent(*other.rareNonInheritedData.get()))

- return true;

- if (rareNonInheritedData->m_multiCol.get() != other.rareNonInheritedData->m_multiCol.get()

- && *rareNonInheritedData->m_multiCol.get() != *other.rareNonInheritedData->m_multiCol.get())

- return true;

- // If the counter directives change, trigger a relayout to re-calculate counter values and rebuild the counter node tree.

- const CounterDirectiveMap* mapA = rareNonInheritedData->m_counterDirectives.get();

- const CounterDirectiveMap* mapB = other.rareNonInheritedData->m_counterDirectives.get();

- if (!(mapA == mapB || (mapA && mapB && *mapA == *mapB)))

- return true;

- // We only need do layout for opacity changes if adding or losing opacity could trigger a change

- // in us being a stacking context.

- if (hasAutoZIndex() != other.hasAutoZIndex() && rareNonInheritedData->hasOpacity() != other.rareNonInheritedData->hasOpacity()) {

- // FIXME: We would like to use SimplifiedLayout here, but we can't quite do that yet.

- // We need to make sure SimplifiedLayout can operate correctly on LayoutInlines (we will need

- // to add a selfNeedsSimplifiedLayout bit in order to not get confused and taint every line).

- // In addition we need to solve the floating object issue when layers come and go. Right now

- // a full layout is necessary to keep floating object lists sane.

- return true;

- }

- if (rareInheritedData.get() != other.rareInheritedData.get()) {

- if (rareInheritedData->highlight != other.rareInheritedData->highlight

- || rareInheritedData->indent != other.rareInheritedData->indent

- || rareInheritedData->m_textAlignLast != other.rareInheritedData->m_textAlignLast

- || rareInheritedData->m_textIndentLine != other.rareInheritedData->m_textIndentLine

- || rareInheritedData->m_effectiveZoom != other.rareInheritedData->m_effectiveZoom

- || rareInheritedData->wordBreak != other.rareInheritedData->wordBreak

- || rareInheritedData->overflowWrap != other.rareInheritedData->overflowWrap

- || rareInheritedData->lineBreak != other.rareInheritedData->lineBreak

- || rareInheritedData->textSecurity != other.rareInheritedData->textSecurity

- || rareInheritedData->hyphens != other.rareInheritedData->hyphens

- || rareInheritedData->hyphenationLimitBefore != other.rareInheritedData->hyphenationLimitBefore

- || rareInheritedData->hyphenationLimitAfter != other.rareInheritedData->hyphenationLimitAfter

- || rareInheritedData->hyphenationString != other.rareInheritedData->hyphenationString

- || rareInheritedData->locale != other.rareInheritedData->locale

- || rareInheritedData->m_rubyPosition != other.rareInheritedData->m_rubyPosition

- || rareInheritedData->textEmphasisMark != other.rareInheritedData->textEmphasisMark

- || rareInheritedData->textEmphasisPosition != other.rareInheritedData->textEmphasisPosition

- || rareInheritedData->textEmphasisCustomMark != other.rareInheritedData->textEmphasisCustomMark

- || rareInheritedData->m_textJustify != other.rareInheritedData->m_textJustify

- || rareInheritedData->m_textOrientation != other.rareInheritedData->m_textOrientation

- || rareInheritedData->m_tabSize != other.rareInheritedData->m_tabSize

- || rareInheritedData->m_lineBoxContain != other.rareInheritedData->m_lineBoxContain

- || rareInheritedData->listStyleImage != other.rareInheritedData->listStyleImage

- || rareInheritedData->textStrokeWidth != other.rareInheritedData->textStrokeWidth)

- return true;

- if (!rareInheritedData->shadowDataEquivalent(*other.rareInheritedData.get()))

- return true;

- if (!rareInheritedData->quotesDataEquivalent(*other.rareInheritedData.get()))

- return true;

- }

- if (inherited->textAutosizingMultiplier != other.inherited->textAutosizingMultiplier)

- return true;

- if (inherited->font.loadingCustomFonts() != other.inherited->font.loadingCustomFonts())

- return true;

- if (inherited.get() != other.inherited.get()) {

- if (inherited->line_height != other.inherited->line_height

- || inherited->font != other.inherited->font

- || inherited->horizontal_border_spacing != other.inherited->horizontal_border_spacing

- || inherited->vertical_border_spacing != other.inherited->vertical_border_spacing)

- return true;

- }

- if (inherited_flags._box_direction != other.inherited_flags._box_direction

- || inherited_flags.m_rtlOrdering != other.inherited_flags.m_rtlOrdering

- || inherited_flags._text_align != other.inherited_flags._text_align

- || inherited_flags._text_transform != other.inherited_flags._text_transform

- || inherited_flags._direction != other.inherited_flags._direction

- || inherited_flags._white_space != other.inherited_flags._white_space

- || inherited_flags.m_writingMode != other.inherited_flags.m_writingMode)

- return true;

- if (noninherited_flags.overflowX != other.noninherited_flags.overflowX

- || noninherited_flags.overflowY != other.noninherited_flags.overflowY

- || noninherited_flags.clear != other.noninherited_flags.clear

- || noninherited_flags.unicodeBidi != other.noninherited_flags.unicodeBidi

- || noninherited_flags.floating != other.noninherited_flags.floating

- || noninherited_flags.originalDisplay != other.noninherited_flags.originalDisplay)

- return true;

- if (noninherited_flags.effectiveDisplay >= FIRST_TABLE_DISPLAY && noninherited_flags.effectiveDisplay <= LAST_TABLE_DISPLAY) {

- if (inherited_flags._border_collapse != other.inherited_flags._border_collapse

- || inherited_flags._empty_cells != other.inherited_flags._empty_cells

- || inherited_flags._caption_side != other.inherited_flags._caption_side

- || noninherited_flags.tableLayout != other.noninherited_flags.tableLayout)

- return true;

- // In the collapsing border model, 'hidden' suppresses other borders, while 'none'

- // does not, so these style differences can be width differences.

- if (inherited_flags._border_collapse

- && ((borderTopStyle() == BHIDDEN && other.borderTopStyle() == BNONE)

- || (borderTopStyle() == BNONE && other.borderTopStyle() == BHIDDEN)

- || (borderBottomStyle() == BHIDDEN && other.borderBottomStyle() == BNONE)

- || (borderBottomStyle() == BNONE && other.borderBottomStyle() == BHIDDEN)

- || (borderLeftStyle() == BHIDDEN && other.borderLeftStyle() == BNONE)

- || (borderLeftStyle() == BNONE && other.borderLeftStyle() == BHIDDEN)

- || (borderRightStyle() == BHIDDEN && other.borderRightStyle() == BNONE)

- || (borderRightStyle() == BNONE && other.borderRightStyle() == BHIDDEN)))

- return true;

- } else if (noninherited_flags.effectiveDisplay == LIST_ITEM) {

- if (inherited_flags._list_style_type != other.inherited_flags._list_style_type

- || inherited_flags._list_style_position != other.inherited_flags._list_style_position)

- return true;

- }

- if ((visibility() == COLLAPSE) != (other.visibility() == COLLAPSE))

- return true;

- if (!m_background->outline().visuallyEqual(other.m_background->outline())) {

- // FIXME: We only really need to recompute the overflow but we don't have an optimized layout for it.

- return true;

- }

- if (hasPseudoStyle(SCROLLBAR) != other.hasPseudoStyle(SCROLLBAR))

- return true;

- // Movement of non-static-positioned object is special cased in LayoutStyle::visualInvalidationDiff().

- return false;

-bool LayoutStyle::diffNeedsFullLayout(const LayoutStyle& other) const

- if (m_box.get() != other.m_box.get()) {

- if (m_box->width() != other.m_box->width()

- || m_box->minWidth() != other.m_box->minWidth()

- || m_box->maxWidth() != other.m_box->maxWidth()

- || m_box->height() != other.m_box->height()

- || m_box->minHeight() != other.m_box->minHeight()

- || m_box->maxHeight() != other.m_box->maxHeight())

- return true;

- if (m_box->verticalAlign() != other.m_box->verticalAlign())

- return true;

- if (m_box->boxSizing() != other.m_box->boxSizing())

- return true;

- }

- if (noninherited_flags.verticalAlign != other.noninherited_flags.verticalAlign

- || noninherited_flags.position != other.noninherited_flags.position)

- return true;

- if (surround.get() != other.surround.get()) {

- if (surround->padding != other.surround->padding)

- return true;

- }

- if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) {

- if (rareNonInheritedData->m_alignContent != other.rareNonInheritedData->m_alignContent

- || rareNonInheritedData->m_alignContentDistribution != other.rareNonInheritedData->m_alignContentDistribution

- || rareNonInheritedData->m_alignItems != other.rareNonInheritedData->m_alignItems

- || rareNonInheritedData->m_alignSelf != other.rareNonInheritedData->m_alignSelf)

- return true;

- }

- return false;

-bool LayoutStyle::diffNeedsPaintInvalidationLayer(const LayoutStyle& other) const

- if (position() != StaticPosition && (visual->clip != other.visual->clip || visual->hasAutoClip != other.visual->hasAutoClip))

- return true;

- if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) {

- if (RuntimeEnabledFeatures::cssCompositingEnabled()

- && (rareNonInheritedData->m_effectiveBlendMode != other.rareNonInheritedData->m_effectiveBlendMode

- || rareNonInheritedData->m_isolation != other.rareNonInheritedData->m_isolation))

- return true;

- if (rareNonInheritedData->m_mask != other.rareNonInheritedData->m_mask

- || rareNonInheritedData->m_maskBoxImage != other.rareNonInheritedData->m_maskBoxImage)

- return true;

- }

- return false;

-bool LayoutStyle::diffNeedsPaintInvalidationObject(const LayoutStyle& other) const

- if (inherited_flags._visibility != other.inherited_flags._visibility

- || inherited_flags.m_printColorAdjust != other.inherited_flags.m_printColorAdjust

- || inherited_flags._insideLink != other.inherited_flags._insideLink

- || !surround->border.visuallyEqual(other.surround->border)

- || !m_background->visuallyEqual(*other.m_background))

- return true;

- if (rareInheritedData.get() != other.rareInheritedData.get()) {

- if (rareInheritedData->userModify != other.rareInheritedData->userModify

- || rareInheritedData->userSelect != other.rareInheritedData->userSelect

- || rareInheritedData->m_imageRendering != other.rareInheritedData->m_imageRendering)

- return true;

- }

- if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) {

- if (rareNonInheritedData->userDrag != other.rareNonInheritedData->userDrag

- || rareNonInheritedData->m_objectFit != other.rareNonInheritedData->m_objectFit

- || rareNonInheritedData->m_objectPosition != other.rareNonInheritedData->m_objectPosition

- || !rareNonInheritedData->shapeOutsideDataEquivalent(*other.rareNonInheritedData.get())

- || !rareNonInheritedData->clipPathDataEquivalent(*other.rareNonInheritedData.get())

- || (visitedLinkBorderLeftColor() != other.visitedLinkBorderLeftColor() && borderLeftWidth())

- || (visitedLinkBorderRightColor() != other.visitedLinkBorderRightColor() && borderRightWidth())

- || (visitedLinkBorderBottomColor() != other.visitedLinkBorderBottomColor() && borderBottomWidth())

- || (visitedLinkBorderTopColor() != other.visitedLinkBorderTopColor() && borderTopWidth())

- || (visitedLinkOutlineColor() != other.visitedLinkOutlineColor() && outlineWidth())

- || (visitedLinkBackgroundColor() != other.visitedLinkBackgroundColor()))

- return true;

- }

- if (resize() != other.resize())

- return true;

- return false;

-void LayoutStyle::updatePropertySpecificDifferences(const LayoutStyle& other, StyleDifference& diff) const

- // StyleAdjuster has ensured that zIndex is non-auto only if it's applicable.

- if (m_box->zIndex() != other.m_box->zIndex() || m_box->hasAutoZIndex() != other.m_box->hasAutoZIndex())

- diff.setZIndexChanged();

- if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) {

- if (!transformDataEquivalent(other))

- diff.setTransformChanged();

- if (rareNonInheritedData->opacity != other.rareNonInheritedData->opacity)

- diff.setOpacityChanged();

- if (rareNonInheritedData->m_filter != other.rareNonInheritedData->m_filter)

- diff.setFilterChanged();

- }

- if (!diff.needsPaintInvalidation()) {

- if (inherited->color != other.inherited->color

- || inherited->visitedLinkColor != other.inherited->visitedLinkColor

- || inherited_flags.m_textUnderline != other.inherited_flags.m_textUnderline

- || visual->textDecoration != other.visual->textDecoration) {

- diff.setTextOrColorChanged();

- } else if (rareNonInheritedData.get() != other.rareNonInheritedData.get()

- && (rareNonInheritedData->m_textDecorationStyle != other.rareNonInheritedData->m_textDecorationStyle

- || rareNonInheritedData->m_textDecorationColor != other.rareNonInheritedData->m_textDecorationColor

- || rareNonInheritedData->m_visitedLinkTextDecorationColor != other.rareNonInheritedData->m_visitedLinkTextDecorationColor)) {

- diff.setTextOrColorChanged();

- } else if (rareInheritedData.get() != other.rareInheritedData.get()

- && (rareInheritedData->textFillColor() != other.rareInheritedData->textFillColor()

- || rareInheritedData->textStrokeColor() != other.rareInheritedData->textStrokeColor()

- || rareInheritedData->textEmphasisColor() != other.rareInheritedData->textEmphasisColor()

- || rareInheritedData->visitedLinkTextFillColor() != other.rareInheritedData->visitedLinkTextFillColor()

- || rareInheritedData->visitedLinkTextStrokeColor() != other.rareInheritedData->visitedLinkTextStrokeColor()

- || rareInheritedData->visitedLinkTextEmphasisColor() != other.rareInheritedData->visitedLinkTextEmphasisColor()

- || rareInheritedData->textEmphasisFill != other.rareInheritedData->textEmphasisFill

- || rareInheritedData->appliedTextDecorations != other.rareInheritedData->appliedTextDecorations)) {

- diff.setTextOrColorChanged();

- }

-void LayoutStyle::addCursor(PassRefPtr<StyleImage> image, bool hotSpotSpecified, const IntPoint& hotSpot)

- if (!rareInheritedData.access()->cursorData)

- rareInheritedData.access()->cursorData = CursorList::create();

- rareInheritedData.access()->cursorData->append(CursorData(image, hotSpotSpecified, hotSpot));

-void LayoutStyle::setCursorList(PassRefPtr<CursorList> other)

- rareInheritedData.access()->cursorData = other;

-void LayoutStyle::setQuotes(PassRefPtr<QuotesData> q)

- rareInheritedData.access()->quotes = q;

-void LayoutStyle::clearCursorList()

- if (rareInheritedData->cursorData)

- rareInheritedData.access()->cursorData = nullptr;

-void LayoutStyle::addCallbackSelector(const String& selector)

- if (!rareNonInheritedData->m_callbackSelectors.contains(selector))

- rareNonInheritedData.access()->m_callbackSelectors.append(selector);

-void LayoutStyle::clearContent()

- if (rareNonInheritedData->m_content)

- rareNonInheritedData.access()->m_content = nullptr;

-void LayoutStyle::appendContent(PassOwnPtr<ContentData> contentData)

- OwnPtr<ContentData>& content = rareNonInheritedData.access()->m_content;

- ContentData* lastContent = content.get();

- while (lastContent && lastContent->next())

- lastContent = lastContent->next();

- if (lastContent)

- lastContent->setNext(contentData);

- else

- content = contentData;

-void LayoutStyle::setContent(PassRefPtr<StyleImage> image, bool add)

- if (!image)

- return;

- if (add) {

- appendContent(ContentData::create(image));

- return;

- }

- rareNonInheritedData.access()->m_content = ContentData::create(image);

-void LayoutStyle::setContent(const String& string, bool add)

- OwnPtr<ContentData>& content = rareNonInheritedData.access()->m_content;

- if (add) {

- ContentData* lastContent = content.get();

- while (lastContent && lastContent->next())

- lastContent = lastContent->next();

- if (lastContent) {

- // We attempt to merge with the last ContentData if possible.

- if (lastContent->isText()) {

- TextContentData* textContent = toTextContentData(lastContent);

- textContent->setText(textContent->text() + string);

- } else {

- lastContent->setNext(ContentData::create(string));

- }

- return;

- }

- content = ContentData::create(string);

-void LayoutStyle::setContent(PassOwnPtr<CounterContent> counter, bool add)

- if (!counter)

- return;

- if (add) {

- appendContent(ContentData::create(counter));

- return;

- }

- rareNonInheritedData.access()->m_content = ContentData::create(counter);

-void LayoutStyle::setContent(QuoteType quote, bool add)

- if (add) {

- appendContent(ContentData::create(quote));

- return;

- }

- rareNonInheritedData.access()->m_content = ContentData::create(quote);

-bool LayoutStyle::hasWillChangeCompositingHint() const

- for (size_t i = 0; i < rareNonInheritedData->m_willChange->m_properties.size(); ++i) {

- switch (rareNonInheritedData->m_willChange->m_properties[i]) {

- case CSSPropertyOpacity:

- case CSSPropertyTransform:

- case CSSPropertyWebkitTransform:

- case CSSPropertyTop:

- case CSSPropertyLeft:

- case CSSPropertyBottom:

- case CSSPropertyRight:

- return true;

- default:

- break;

- }

- return false;

-inline bool requireTransformOrigin(const Vector<RefPtr<TransformOperation>>& transformOperations, LayoutStyle::ApplyTransformOrigin applyOrigin, LayoutStyle::ApplyMotionPath applyMotionPath)

- // transform-origin brackets the transform with translate operations.

- // Optimize for the case where the only transform is a translation, since the transform-origin is irrelevant

- // in that case.

- if (applyOrigin != LayoutStyle::IncludeTransformOrigin)

- return false;

- if (applyMotionPath == LayoutStyle::IncludeMotionPath)

- return true;

- unsigned size = transformOperations.size();

- for (unsigned i = 0; i < size; ++i) {

- TransformOperation::OperationType type = transformOperations[i]->type();

- if (type != TransformOperation::TranslateX

- && type != TransformOperation::TranslateY

- && type != TransformOperation::Translate

- && type != TransformOperation::TranslateZ

- && type != TransformOperation::Translate3D)

- return true;

- }

- return false;

-void LayoutStyle::applyTransform(TransformationMatrix& transform, const LayoutSize& borderBoxSize, ApplyTransformOrigin applyOrigin, ApplyMotionPath applyMotionPath) const

- applyTransform(transform, FloatRect(FloatPoint(), FloatSize(borderBoxSize)), applyOrigin, applyMotionPath);

-void LayoutStyle::applyTransform(TransformationMatrix& transform, const FloatRect& boundingBox, ApplyTransformOrigin applyOrigin, ApplyMotionPath applyMotionPath) const

- if (!hasMotionPath())

- applyMotionPath = ExcludeMotionPath;

- const Vector<RefPtr<TransformOperation>>& transformOperations = rareNonInheritedData->m_transform->m_operations.operations();

- bool applyTransformOrigin = requireTransformOrigin(transformOperations, applyOrigin, applyMotionPath);

- float offsetX = transformOriginX().type() == Percent ? boundingBox.x() : 0;

- float offsetY = transformOriginY().type() == Percent ? boundingBox.y() : 0;

- if (applyTransformOrigin) {

- transform.translate3d(floatValueForLength(transformOriginX(), boundingBox.width()) + offsetX,

- floatValueForLength(transformOriginY(), boundingBox.height()) + offsetY,

- transformOriginZ());

- }

- if (applyMotionPath == LayoutStyle::IncludeMotionPath)

- applyMotionPathTransform(transform);

- unsigned size = transformOperations.size();

- for (unsigned i = 0; i < size; ++i)

- transformOperations[i]->apply(transform, boundingBox.size());

- if (applyTransformOrigin) {

- transform.translate3d(-floatValueForLength(transformOriginX(), boundingBox.width()) - offsetX,

- -floatValueForLength(transformOriginY(), boundingBox.height()) - offsetY,

- -transformOriginZ());

- }

-void LayoutStyle::applyMotionPathTransform(TransformationMatrix& transform) const

- const StyleMotionData& motionData = rareNonInheritedData->m_transform->m_motion;

- ASSERT(motionData.m_path && motionData.m_path->isPathStyleMotionPath());

- const PathStyleMotionPath& motionPath = toPathStyleMotionPath(*motionData.m_path);

- float pathLength = motionPath.length();

- float distance = floatValueForLength(motionData.m_offset, pathLength);

- float computedDistance;

- if (motionPath.isClosed() && pathLength > 0) {

- computedDistance = fmod(distance, pathLength);

- if (computedDistance < 0)

- computedDistance += pathLength;

- } else {

- computedDistance = clampTo<float>(distance, 0, pathLength);

- }

- FloatPoint point;

- float angle;

- if (!motionPath.path().pointAndNormalAtLength(computedDistance, point, angle))

- return;

- if (motionData.m_rotationType == MotionRotationFixed)

- angle = 0;

- transform.translate(point.x(), point.y());

- transform.rotate(angle + motionData.m_rotation);

-void LayoutStyle::setTextShadow(PassRefPtr<ShadowList> s)

- rareInheritedData.access()->textShadow = s;

-void LayoutStyle::setBoxShadow(PassRefPtr<ShadowList> s)

- rareNonInheritedData.access()->m_boxShadow = s;

-static FloatRoundedRect::Radii calcRadiiFor(const BorderData& border, LayoutSize size)

- return FloatRoundedRect::Radii(

- IntSize(valueForLength(border.topLeft().width(), size.width()),

- valueForLength(border.topLeft().height(), size.height())),

- IntSize(valueForLength(border.topRight().width(), size.width()),

- valueForLength(border.topRight().height(), size.height())),

- IntSize(valueForLength(border.bottomLeft().width(), size.width()),

- valueForLength(border.bottomLeft().height(), size.height())),

- IntSize(valueForLength(border.bottomRight().width(), size.width()),

- valueForLength(border.bottomRight().height(), size.height())));

-StyleImage* LayoutStyle::listStyleImage() const { return rareInheritedData->listStyleImage.get(); }

-void LayoutStyle::setListStyleImage(PassRefPtr<StyleImage> v)

- if (rareInheritedData->listStyleImage != v)

- rareInheritedData.access()->listStyleImage = v;

-Color LayoutStyle::color() const { return inherited->color; }

-Color LayoutStyle::visitedLinkColor() const { return inherited->visitedLinkColor; }

-void LayoutStyle::setColor(const Color& v) { SET_VAR(inherited, color, v); }

-void LayoutStyle::setVisitedLinkColor(const Color& v) { SET_VAR(inherited, visitedLinkColor, v); }

-short LayoutStyle::horizontalBorderSpacing() const { return inherited->horizontal_border_spacing; }

-short LayoutStyle::verticalBorderSpacing() const { return inherited->vertical_border_spacing; }

-void LayoutStyle::setHorizontalBorderSpacing(short v) { SET_VAR(inherited, horizontal_border_spacing, v); }

-void LayoutStyle::setVerticalBorderSpacing(short v) { SET_VAR(inherited, vertical_border_spacing, v); }

-FloatRoundedRect LayoutStyle::getRoundedBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const

- FloatRoundedRect roundedRect(pixelSnappedIntRect(borderRect));

- if (hasBorderRadius()) {

- FloatRoundedRect::Radii radii = calcRadiiFor(surround->border, borderRect.size());

- roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge);

- roundedRect.constrainRadii();

- }

- return roundedRect;

-FloatRoundedRect LayoutStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const

- bool horizontal = isHorizontalWritingMode();

- int leftWidth = (!horizontal || includeLogicalLeftEdge) ? borderLeftWidth() : 0;

- int rightWidth = (!horizontal || includeLogicalRightEdge) ? borderRightWidth() : 0;

- int topWidth = (horizontal || includeLogicalLeftEdge) ? borderTopWidth() : 0;

- int bottomWidth = (horizontal || includeLogicalRightEdge) ? borderBottomWidth() : 0;

- return getRoundedInnerBorderFor(borderRect, topWidth, bottomWidth, leftWidth, rightWidth, includeLogicalLeftEdge, includeLogicalRightEdge);

-FloatRoundedRect LayoutStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect,

- int topWidth, int bottomWidth, int leftWidth, int rightWidth, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const

- LayoutRect innerRect(borderRect.x() + leftWidth,

- borderRect.y() + topWidth,

- borderRect.width() - leftWidth - rightWidth,

- borderRect.height() - topWidth - bottomWidth);

- FloatRoundedRect roundedRect(pixelSnappedIntRect(innerRect));

- if (hasBorderRadius()) {

- FloatRoundedRect::Radii radii = getRoundedBorderFor(borderRect).radii();

- radii.shrink(topWidth, bottomWidth, leftWidth, rightWidth);

- roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge);

- }

- return roundedRect;

-static bool allLayersAreFixed(const FillLayer& layer)

- for (const FillLayer* currLayer = &layer; currLayer; currLayer = currLayer->next()) {

- if (!currLayer->image() || currLayer->attachment() != FixedBackgroundAttachment)

- return false;

- }

- return true;

-bool LayoutStyle::hasEntirelyFixedBackground() const

- return allLayersAreFixed(backgroundLayers());

-const CounterDirectiveMap* LayoutStyle::counterDirectives() const

- return rareNonInheritedData->m_counterDirectives.get();

-CounterDirectiveMap& LayoutStyle::accessCounterDirectives()

- OwnPtr<CounterDirectiveMap>& map = rareNonInheritedData.access()->m_counterDirectives;

- if (!map)

- map = adoptPtr(new CounterDirectiveMap);

- return *map;

-const CounterDirectives LayoutStyle::getCounterDirectives(const AtomicString& identifier) const

- if (const CounterDirectiveMap* directives = counterDirectives())

- return directives->get(identifier);

- return CounterDirectives();

-void LayoutStyle::clearIncrementDirectives()

- if (!counterDirectives())

- return;

- // This makes us copy even if we may not be removing any items.

- CounterDirectiveMap& map = accessCounterDirectives();

- typedef CounterDirectiveMap::iterator Iterator;

- Iterator end = map.end();

- for (Iterator it = map.begin(); it != end; ++it)

- it->value.clearIncrement();

-void LayoutStyle::clearResetDirectives()

- if (!counterDirectives())

- return;

- // This makes us copy even if we may not be removing any items.

- CounterDirectiveMap& map = accessCounterDirectives();

- typedef CounterDirectiveMap::iterator Iterator;

- Iterator end = map.end();

- for (Iterator it = map.begin(); it != end; ++it)

- it->value.clearReset();

-const AtomicString& LayoutStyle::hyphenString() const

- const AtomicString& hyphenationString = rareInheritedData.get()->hyphenationString;

- if (!hyphenationString.isNull())

- return hyphenationString;

- // FIXME: This should depend on locale.

- DEFINE_STATIC_LOCAL(AtomicString, hyphenMinusString, (&hyphenMinus, 1));

- DEFINE_STATIC_LOCAL(AtomicString, hyphenString, (&hyphen, 1));

- return font().primaryFontHasGlyphForCharacter(hyphen) ? hyphenString : hyphenMinusString;

-const AtomicString& LayoutStyle::textEmphasisMarkString() const

- switch (textEmphasisMark()) {

- case TextEmphasisMarkNone:

- return nullAtom;

- case TextEmphasisMarkCustom:

- return textEmphasisCustomMark();

- case TextEmphasisMarkDot: {

- DEFINE_STATIC_LOCAL(AtomicString, filledDotString, (&bullet, 1));

- DEFINE_STATIC_LOCAL(AtomicString, openDotString, (&whiteBullet, 1));

- return textEmphasisFill() == TextEmphasisFillFilled ? filledDotString : openDotString;

- }

- case TextEmphasisMarkCircle: {

- DEFINE_STATIC_LOCAL(AtomicString, filledCircleString, (&blackCircle, 1));

- DEFINE_STATIC_LOCAL(AtomicString, openCircleString, (&whiteCircle, 1));

- return textEmphasisFill() == TextEmphasisFillFilled ? filledCircleString : openCircleString;

- }

- case TextEmphasisMarkDoubleCircle: {

- DEFINE_STATIC_LOCAL(AtomicString, filledDoubleCircleString, (&fisheye, 1));

- DEFINE_STATIC_LOCAL(AtomicString, openDoubleCircleString, (&bullseye, 1));

- return textEmphasisFill() == TextEmphasisFillFilled ? filledDoubleCircleString : openDoubleCircleString;

- }

- case TextEmphasisMarkTriangle: {

- DEFINE_STATIC_LOCAL(AtomicString, filledTriangleString, (&blackUpPointingTriangle, 1));

- DEFINE_STATIC_LOCAL(AtomicString, openTriangleString, (&whiteUpPointingTriangle, 1));

- return textEmphasisFill() == TextEmphasisFillFilled ? filledTriangleString : openTriangleString;

- }

- case TextEmphasisMarkSesame: {

- DEFINE_STATIC_LOCAL(AtomicString, filledSesameString, (&sesameDot, 1));

- DEFINE_STATIC_LOCAL(AtomicString, openSesameString, (&whiteSesameDot, 1));

- return textEmphasisFill() == TextEmphasisFillFilled ? filledSesameString : openSesameString;

- }

- case TextEmphasisMarkAuto:

- ASSERT_NOT_REACHED();

- return nullAtom;

- }

- ASSERT_NOT_REACHED();

- return nullAtom;

-CSSAnimationData& LayoutStyle::accessAnimations()

- if (!rareNonInheritedData.access()->m_animations)

- rareNonInheritedData.access()->m_animations = CSSAnimationData::create();

- return *rareNonInheritedData->m_animations;

-CSSTransitionData& LayoutStyle::accessTransitions()

- if (!rareNonInheritedData.access()->m_transitions)

- rareNonInheritedData.access()->m_transitions = CSSTransitionData::create();

- return *rareNonInheritedData->m_transitions;

-const Font& LayoutStyle::font() const { return inherited->font; }

-const FontMetrics& LayoutStyle::fontMetrics() const { return inherited->font.fontMetrics(); }

-const FontDescription& LayoutStyle::fontDescription() const { return inherited->font.fontDescription(); }

-float LayoutStyle::specifiedFontSize() const { return fontDescription().specifiedSize(); }

-float LayoutStyle::computedFontSize() const { return fontDescription().computedSize(); }

-int LayoutStyle::fontSize() const { return fontDescription().computedPixelSize(); }

-float LayoutStyle::fontSizeAdjust() const { return fontDescription().sizeAdjust(); }

-bool LayoutStyle::hasFontSizeAdjust() const { return fontDescription().hasSizeAdjust(); }

-FontWeight LayoutStyle::fontWeight() const { return fontDescription().weight(); }

-FontStretch LayoutStyle::fontStretch() const { return fontDescription().stretch(); }

-TextDecoration LayoutStyle::textDecorationsInEffect() const

- int decorations = 0;

- const Vector<AppliedTextDecoration>& applied = appliedTextDecorations();

- for (size_t i = 0; i < applied.size(); ++i)

- decorations |= applied[i].line();

- return static_cast<TextDecoration>(decorations);

-const Vector<AppliedTextDecoration>& LayoutStyle::appliedTextDecorations() const

- if (!inherited_flags.m_textUnderline && !rareInheritedData->appliedTextDecorations) {

- DEFINE_STATIC_LOCAL(Vector<AppliedTextDecoration>, empty, ());

- return empty;

- }

- if (inherited_flags.m_textUnderline) {

- DEFINE_STATIC_LOCAL(Vector<AppliedTextDecoration>, underline, (1, AppliedTextDecoration(TextDecorationUnderline)));

- return underline;

- }

- return rareInheritedData->appliedTextDecorations->vector();

-float LayoutStyle::wordSpacing() const { return fontDescription().wordSpacing(); }

-float LayoutStyle::letterSpacing() const { return fontDescription().letterSpacing(); }

-bool LayoutStyle::setFontDescription(const FontDescription& v)

- if (inherited->font.fontDescription() != v) {

- inherited.access()->font = Font(v);

- return true;

- }

- return false;

-const Length& LayoutStyle::specifiedLineHeight() const { return inherited->line_height; }

-Length LayoutStyle::lineHeight() const

- const Length& lh = inherited->line_height;

- // Unlike fontDescription().computedSize() and hence fontSize(), this is

- // recalculated on demand as we only store the specified line height.

- // FIXME: Should consider scaling the fixed part of any calc expressions

- // too, though this involves messily poking into CalcExpressionLength.

- float multiplier = textAutosizingMultiplier();

- if (multiplier > 1 && lh.isFixed())

- return Length(TextAutosizer::computeAutosizedFontSize(lh.value(), multiplier), Fixed);

- return lh;

-void LayoutStyle::setLineHeight(const Length& specifiedLineHeight) { SET_VAR(inherited, line_height, specifiedLineHeight); }

-int LayoutStyle::computedLineHeight() const

- const Length& lh = lineHeight();

- // Negative value means the line height is not set. Use the font's built-in spacing.

- if (lh.isNegative())

- return fontMetrics().lineSpacing();

- if (lh.isPercent())

- return minimumValueForLength(lh, fontSize());

- return lh.value();

-void LayoutStyle::setWordSpacing(float wordSpacing)

- FontSelector* currentFontSelector = font().fontSelector();

- FontDescription desc(fontDescription());

- desc.setWordSpacing(wordSpacing);

- setFontDescription(desc);

- font().update(currentFontSelector);

-void LayoutStyle::setLetterSpacing(float letterSpacing)

- FontSelector* currentFontSelector = font().fontSelector();

- FontDescription desc(fontDescription());

- desc.setLetterSpacing(letterSpacing);

- setFontDescription(desc);

- font().update(currentFontSelector);

-void LayoutStyle::setTextAutosizingMultiplier(float multiplier)

- SET_VAR(inherited, textAutosizingMultiplier, multiplier);

- float size = specifiedFontSize();

- ASSERT(std::isfinite(size));

- if (!std::isfinite(size) || size < 0)

- size = 0;

- else

- size = std::min(maximumAllowedFontSize, size);

- FontSelector* currentFontSelector = font().fontSelector();

- FontDescription desc(fontDescription());

- desc.setSpecifiedSize(size);

- desc.setComputedSize(size);

- if (multiplier > 1) {

- float autosizedFontSize = TextAutosizer::computeAutosizedFontSize(size, multiplier);

- desc.setComputedSize(std::min(maximumAllowedFontSize, autosizedFontSize));

- }

- setFontDescription(desc);

- font().update(currentFontSelector);

-void LayoutStyle::addAppliedTextDecoration(const AppliedTextDecoration& decoration)

- RefPtr<AppliedTextDecorationList>& list = rareInheritedData.access()->appliedTextDecorations;

- if (!list)

- list = AppliedTextDecorationList::create();

- else if (!list->hasOneRef())

- list = list->copy();

- if (inherited_flags.m_textUnderline) {

- inherited_flags.m_textUnderline = false;

- list->append(AppliedTextDecoration(TextDecorationUnderline));

- }

- list->append(decoration);

-void LayoutStyle::applyTextDecorations()

- if (textDecoration() == TextDecorationNone)

- return;

- TextDecorationStyle style = textDecorationStyle();

- StyleColor styleColor = decorationColorIncludingFallback(insideLink() == InsideVisitedLink);

- int decorations = textDecoration();

- if (decorations & TextDecorationUnderline) {

- // To save memory, we don't use AppliedTextDecoration objects in the

- // common case of a single simple underline.

- AppliedTextDecoration underline(TextDecorationUnderline, style, styleColor);

- if (!rareInheritedData->appliedTextDecorations && underline.isSimpleUnderline())

- inherited_flags.m_textUnderline = true;

- else

- addAppliedTextDecoration(underline);

- }

- if (decorations & TextDecorationOverline)

- addAppliedTextDecoration(AppliedTextDecoration(TextDecorationOverline, style, styleColor));

- if (decorations & TextDecorationLineThrough)

- addAppliedTextDecoration(AppliedTextDecoration(TextDecorationLineThrough, style, styleColor));

-void LayoutStyle::clearAppliedTextDecorations()

- inherited_flags.m_textUnderline = false;

- if (rareInheritedData->appliedTextDecorations)

- rareInheritedData.access()->appliedTextDecorations = nullptr;

-void LayoutStyle::clearMultiCol()

- rareNonInheritedData.access()->m_multiCol = nullptr;

- rareNonInheritedData.access()->m_multiCol.init();

-StyleColor LayoutStyle::decorationColorIncludingFallback(bool visitedLink) const

- StyleColor styleColor = visitedLink ? visitedLinkTextDecorationColor() : textDecorationColor();

- if (!styleColor.isCurrentColor())

- return styleColor;

- if (textStrokeWidth()) {

- // Prefer stroke color if possible, but not if it's fully transparent.

- StyleColor textStrokeStyleColor = visitedLink ? visitedLinkTextStrokeColor() : textStrokeColor();

- if (!textStrokeStyleColor.isCurrentColor() && textStrokeStyleColor.color().alpha())

- return textStrokeStyleColor;

- }

- return visitedLink ? visitedLinkTextFillColor() : textFillColor();

-Color LayoutStyle::colorIncludingFallback(int colorProperty, bool visitedLink) const

- StyleColor result(StyleColor::currentColor());

- EBorderStyle borderStyle = BNONE;

- switch (colorProperty) {

- case CSSPropertyBackgroundColor:

- result = visitedLink ? visitedLinkBackgroundColor() : backgroundColor();

- break;

- case CSSPropertyBorderLeftColor:

- result = visitedLink ? visitedLinkBorderLeftColor() : borderLeftColor();

- borderStyle = borderLeftStyle();

- break;

- case CSSPropertyBorderRightColor:

- result = visitedLink ? visitedLinkBorderRightColor() : borderRightColor();

- borderStyle = borderRightStyle();

- break;

- case CSSPropertyBorderTopColor:

- result = visitedLink ? visitedLinkBorderTopColor() : borderTopColor();

- borderStyle = borderTopStyle();

- break;

- case CSSPropertyBorderBottomColor:

- result = visitedLink ? visitedLinkBorderBottomColor() : borderBottomColor();

- borderStyle = borderBottomStyle();

- break;

- case CSSPropertyColor:

- result = visitedLink ? visitedLinkColor() : color();

- break;

- case CSSPropertyOutlineColor:

- result = visitedLink ? visitedLinkOutlineColor() : outlineColor();

- break;

- case CSSPropertyWebkitColumnRuleColor:

- result = visitedLink ? visitedLinkColumnRuleColor() : columnRuleColor();

- break;

- case CSSPropertyWebkitTextEmphasisColor:

- result = visitedLink ? visitedLinkTextEmphasisColor() : textEmphasisColor();

- break;

- case CSSPropertyWebkitTextFillColor:

- result = visitedLink ? visitedLinkTextFillColor() : textFillColor();

- break;

- case CSSPropertyWebkitTextStrokeColor:

- result = visitedLink ? visitedLinkTextStrokeColor() : textStrokeColor();

- break;

- case CSSPropertyFloodColor:

- result = floodColor();

- break;

- case CSSPropertyLightingColor:

- result = lightingColor();

- break;

- case CSSPropertyStopColor:

- result = stopColor();

- break;

- case CSSPropertyWebkitTapHighlightColor:

- result = tapHighlightColor();

- break;

- case CSSPropertyTextDecorationColor:

- result = decorationColorIncludingFallback(visitedLink);

- break;

- default:

- ASSERT_NOT_REACHED();

- break;

- }

- if (!result.isCurrentColor())

- return result.color();

- // FIXME: Treating styled borders with initial color differently causes problems

- // See crbug.com/316559, crbug.com/276231

- if (!visitedLink && (borderStyle == INSET || borderStyle == OUTSET || borderStyle == RIDGE || borderStyle == GROOVE))

- return Color(238, 238, 238);

- return visitedLink ? visitedLinkColor() : color();

-Color LayoutStyle::visitedDependentColor(int colorProperty) const

- Color unvisitedColor = colorIncludingFallback(colorProperty, false);

- if (insideLink() != InsideVisitedLink)

- return unvisitedColor;

- Color visitedColor = colorIncludingFallback(colorProperty, true);

- // FIXME: Technically someone could explicitly specify the color transparent, but for now we'll just

- // assume that if the background color is transparent that it wasn't set. Note that it's weird that

- // we're returning unvisited info for a visited link, but given our restriction that the alpha values

- // have to match, it makes more sense to return the unvisited background color if specified than it

- // does to return black. This behavior matches what Firefox 4 does as well.

- if (colorProperty == CSSPropertyBackgroundColor && visitedColor == Color::transparent)

- return unvisitedColor;

- // Take the alpha from the unvisited color, but get the RGB values from the visited color.

- return Color(visitedColor.red(), visitedColor.green(), visitedColor.blue(), unvisitedColor.alpha());

-const BorderValue& LayoutStyle::borderBefore() const

- switch (writingMode()) {

- case TopToBottomWritingMode:

- return borderTop();

- case BottomToTopWritingMode:

- return borderBottom();

- case LeftToRightWritingMode:

- return borderLeft();

- case RightToLeftWritingMode:

- return borderRight();

- }

- ASSERT_NOT_REACHED();

- return borderTop();

-const BorderValue& LayoutStyle::borderAfter() const

- switch (writingMode()) {

- case TopToBottomWritingMode:

- return borderBottom();

- case BottomToTopWritingMode:

- return borderTop();

- case LeftToRightWritingMode:

- return borderRight();

- case RightToLeftWritingMode:

- return borderLeft();

- }

- ASSERT_NOT_REACHED();

- return borderBottom();

-const BorderValue& LayoutStyle::borderStart() const

- if (isHorizontalWritingMode())

- return isLeftToRightDirection() ? borderLeft() : borderRight();

- return isLeftToRightDirection() ? borderTop() : borderBottom();

-const BorderValue& LayoutStyle::borderEnd() const

- if (isHorizontalWritingMode())

- return isLeftToRightDirection() ? borderRight() : borderLeft();

- return isLeftToRightDirection() ? borderBottom() : borderTop();

-unsigned short LayoutStyle::borderBeforeWidth() const

- switch (writingMode()) {

- case TopToBottomWritingMode:

- return borderTopWidth();

- case BottomToTopWritingMode:

- return borderBottomWidth();

- case LeftToRightWritingMode:

- return borderLeftWidth();

- case RightToLeftWritingMode:

- return borderRightWidth();

- }

- ASSERT_NOT_REACHED();

- return borderTopWidth();

-unsigned short LayoutStyle::borderAfterWidth() const

- switch (writingMode()) {

- case TopToBottomWritingMode:

- return borderBottomWidth();

- case BottomToTopWritingMode:

- return borderTopWidth();

- case LeftToRightWritingMode:

- return borderRightWidth();

- case RightToLeftWritingMode:

- return borderLeftWidth();

- }

- ASSERT_NOT_REACHED();

- return borderBottomWidth();

-unsigned short LayoutStyle::borderStartWidth() const

- if (isHorizontalWritingMode())

- return isLeftToRightDirection() ? borderLeftWidth() : borderRightWidth();

- return isLeftToRightDirection() ? borderTopWidth() : borderBottomWidth();

-unsigned short LayoutStyle::borderEndWidth() const

- if (isHorizontalWritingMode())

- return isLeftToRightDirection() ? borderRightWidth() : borderLeftWidth();

- return isLeftToRightDirection() ? borderBottomWidth() : borderTopWidth();

-void LayoutStyle::setMarginStart(const Length& margin)

- if (isHorizontalWritingMode()) {

- if (isLeftToRightDirection())

- setMarginLeft(margin);

- else

- setMarginRight(margin);

- } else {

- if (isLeftToRightDirection())

- setMarginTop(margin);

- else

- setMarginBottom(margin);

- }

-void LayoutStyle::setMarginEnd(const Length& margin)

- if (isHorizontalWritingMode()) {

- if (isLeftToRightDirection())

- setMarginRight(margin);

- else

- setMarginLeft(margin);

- } else {

- if (isLeftToRightDirection())

- setMarginBottom(margin);

- else

- setMarginTop(margin);

- }

-void LayoutStyle::setMotionPath(PassRefPtr<StyleMotionPath> path)

- ASSERT(path);

- rareNonInheritedData.access()->m_transform.access()->m_motion.m_path = path;

-void LayoutStyle::resetMotionPath()

- rareNonInheritedData.access()->m_transform.access()->m_motion.m_path = nullptr;

-bool LayoutStyle::columnRuleEquivalent(const LayoutStyle* otherStyle) const

- return columnRuleStyle() == otherStyle->columnRuleStyle()

- && columnRuleWidth() == otherStyle->columnRuleWidth()

- && visitedDependentColor(CSSPropertyWebkitColumnRuleColor) == otherStyle->visitedDependentColor(CSSPropertyWebkitColumnRuleColor);

-TextEmphasisMark LayoutStyle::textEmphasisMark() const

- TextEmphasisMark mark = static_cast<TextEmphasisMark>(rareInheritedData->textEmphasisMark);

- if (mark != TextEmphasisMarkAuto)

- return mark;

- if (isHorizontalWritingMode())

- return TextEmphasisMarkDot;

- return TextEmphasisMarkSesame;

-Color LayoutStyle::initialTapHighlightColor()

- return LayoutTheme::tapHighlightColor();

-#if ENABLE(OILPAN)

-const FilterOperations& LayoutStyle::initialFilter()

- DEFINE_STATIC_LOCAL(Persistent<FilterOperationsWrapper>, ops, (FilterOperationsWrapper::create()));

- return ops->operations();

-#endif

-LayoutRectOutsets LayoutStyle::imageOutsets(const NinePieceImage& image) const

- return LayoutRectOutsets(

- NinePieceImage::computeOutset(image.outset().top(), borderTopWidth()),

- NinePieceImage::computeOutset(image.outset().right(), borderRightWidth()),

- NinePieceImage::computeOutset(image.outset().bottom(), borderBottomWidth()),

- NinePieceImage::computeOutset(image.outset().left(), borderLeftWidth()));

-void LayoutStyle::setBorderImageSource(PassRefPtr<StyleImage> image)

- if (surround->border.m_image.image() == image.get())

- return;

- surround.access()->border.m_image.setImage(image);

-void LayoutStyle::setBorderImageSlices(const LengthBox& slices)

- if (surround->border.m_image.imageSlices() == slices)

- return;

- surround.access()->border.m_image.setImageSlices(slices);

-void LayoutStyle::setBorderImageSlicesFill(bool fill)

- if (surround->border.m_image.fill() == fill)

- return;

- surround.access()->border.m_image.setFill(fill);

-void LayoutStyle::setBorderImageWidth(const BorderImageLengthBox& slices)

- if (surround->border.m_image.borderSlices() == slices)

- return;

- surround.access()->border.m_image.setBorderSlices(slices);

-void LayoutStyle::setBorderImageOutset(const BorderImageLengthBox& outset)

- if (surround->border.m_image.outset() == outset)

- return;

- surround.access()->border.m_image.setOutset(outset);

-bool LayoutStyle::borderObscuresBackground() const

- if (!hasBorder())

- return false;

- // Bail if we have any border-image for now. We could look at the image alpha to improve this.

- if (borderImage().image())

- return false;

- BorderEdge edges[4];

- getBorderEdgeInfo(edges);

- for (int i = BSTop; i <= BSLeft; ++i) {

- const BorderEdge& currEdge = edges[i];

- if (!currEdge.obscuresBackground())

- return false;

- }

- return true;

-void LayoutStyle::getBorderEdgeInfo(BorderEdge edges[], bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const

- bool horizontal = isHorizontalWritingMode();

- edges[BSTop] = BorderEdge(borderTopWidth(),

- visitedDependentColor(CSSPropertyBorderTopColor),

- borderTopStyle(),

- borderTopIsTransparent(),

- horizontal || includeLogicalLeftEdge);

- edges[BSRight] = BorderEdge(borderRightWidth(),

- visitedDependentColor(CSSPropertyBorderRightColor),

- borderRightStyle(),

- borderRightIsTransparent(),

- !horizontal || includeLogicalRightEdge);

- edges[BSBottom] = BorderEdge(borderBottomWidth(),

- visitedDependentColor(CSSPropertyBorderBottomColor),

- borderBottomStyle(),

- borderBottomIsTransparent(),

- horizontal || includeLogicalRightEdge);

- edges[BSLeft] = BorderEdge(borderLeftWidth(),

- visitedDependentColor(CSSPropertyBorderLeftColor),

- borderLeftStyle(),

- borderLeftIsTransparent(),

- !horizontal || includeLogicalLeftEdge);

-} // namespace blink

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