#include "config.h"
#include "RenderStyle.h"
#include "ContentData.h"
#include "CursorList.h"
#include "CSSPropertyNames.h"
#include "FloatRoundedRect.h"
#include "FontCascade.h"
#include "FontSelector.h"
#include "InlineTextBoxStyle.h"
#include "Pagination.h"
#include "QuotesData.h"
#include "RenderObject.h"
#include "ScaleTransformOperation.h"
#include "ShadowData.h"
#include "StyleImage.h"
#include "StyleInheritedData.h"
#include "StyleResolver.h"
#include "StyleScrollSnapPoints.h"
#include "StyleSelfAlignmentData.h"
#include <wtf/MathExtras.h>
#include <wtf/StdLibExtras.h>
#include <algorithm>
#if ENABLE(IOS_TEXT_AUTOSIZING)
#include <wtf/text/StringHash.h>
#endif
#if ENABLE(TEXT_AUTOSIZING)
#include "TextAutosizer.h"
#endif
#if ENABLE(TOUCH_EVENTS)
#include "RenderTheme.h"
#endif
namespace WebCore {
struct SameSizeAsBorderValue {
float m_width;
RGBA32 m_color;
int m_restBits;
};
COMPILE_ASSERT(sizeof(BorderValue) == sizeof(SameSizeAsBorderValue), BorderValue_should_not_grow);
struct SameSizeAsRenderStyle : public RefCounted<SameSizeAsRenderStyle> {
void* dataRefs[7];
void* ownPtrs[1];
void* dataRefSvgStyle;
struct InheritedFlags {
unsigned m_bitfields[2];
} inherited_flags;
struct NonInheritedFlags {
uint64_t m_flags;
} noninherited_flags;
};
COMPILE_ASSERT(sizeof(RenderStyle) == sizeof(SameSizeAsRenderStyle), RenderStyle_should_stay_small);
inline RenderStyle& defaultStyle()
{
static RenderStyle& style = RenderStyle::createDefaultStyle().leakRef();
return style;
}
Ref<RenderStyle> RenderStyle::create()
{
return adoptRef(*new RenderStyle(defaultStyle()));
}
Ref<RenderStyle> RenderStyle::createDefaultStyle()
{
return adoptRef(*new RenderStyle(true));
}
Ref<RenderStyle> RenderStyle::createAnonymousStyleWithDisplay(const RenderStyle* parentStyle, EDisplay display)
{
auto newStyle = RenderStyle::create();
newStyle.get().inheritFrom(parentStyle);
newStyle.get().inheritUnicodeBidiFrom(parentStyle);
newStyle.get().setDisplay(display);
return newStyle;
}
Ref<RenderStyle> RenderStyle::clone(const RenderStyle* other)
{
return adoptRef(*new RenderStyle(*other));
}
Ref<RenderStyle> RenderStyle::createStyleInheritingFromPseudoStyle(const RenderStyle& pseudoStyle)
{
ASSERT(pseudoStyle.styleType() == BEFORE || pseudoStyle.styleType() == AFTER);
auto style = RenderStyle::create();
style.get().inheritFrom(&pseudoStyle);
return style;
}
ALWAYS_INLINE RenderStyle::RenderStyle(bool)
: m_box(StyleBoxData::create())
, visual(StyleVisualData::create())
, m_background(StyleBackgroundData::create())
, surround(StyleSurroundData::create())
, rareNonInheritedData(StyleRareNonInheritedData::create())
, rareInheritedData(StyleRareInheritedData::create())
, inherited(StyleInheritedData::create())
, m_svgStyle(SVGRenderStyle::create())
{
inherited_flags._empty_cells = initialEmptyCells();
inherited_flags._caption_side = initialCaptionSide();
inherited_flags._list_style_type = initialListStyleType();
inherited_flags._list_style_position = initialListStylePosition();
inherited_flags._visibility = initialVisibility();
inherited_flags._text_align = initialTextAlign();
inherited_flags._text_transform = initialTextTransform();
inherited_flags._text_decorations = initialTextDecoration();
inherited_flags._cursor_style = initialCursor();
#if ENABLE(CURSOR_VISIBILITY)
inherited_flags.m_cursorVisibility = initialCursorVisibility();
#endif
inherited_flags._direction = initialDirection();
inherited_flags._white_space = initialWhiteSpace();
inherited_flags._border_collapse = initialBorderCollapse();
inherited_flags.m_rtlOrdering = initialRTLOrdering();
inherited_flags._box_direction = initialBoxDirection();
inherited_flags.m_printColorAdjust = initialPrintColorAdjust();
inherited_flags._pointerEvents = initialPointerEvents();
inherited_flags._insideLink = NotInsideLink;
inherited_flags._insideDefaultButton = false;
inherited_flags.m_writingMode = initialWritingMode();
static_assert((sizeof(InheritedFlags) <= 8), "InheritedFlags does not grow");
static_assert((sizeof(NonInheritedFlags) <= 8), "NonInheritedFlags does not grow");
}
ALWAYS_INLINE RenderStyle::RenderStyle(const RenderStyle& o)
: RefCounted<RenderStyle>()
, 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 inline StyleSelfAlignmentData resolveAlignmentData(const RenderStyle& parentStyle, const RenderStyle& childStyle, ItemPosition resolvedAutoPositionForRenderer)
{
if (childStyle.alignSelfPosition() == ItemPositionAuto)
return (parentStyle.alignItemsPosition() == ItemPositionAuto) ? StyleSelfAlignmentData(resolvedAutoPositionForRenderer, OverflowAlignmentDefault) : parentStyle.alignItems();
return childStyle.alignSelf();
}
static inline StyleSelfAlignmentData resolveJustificationData(const RenderStyle& parentStyle, const RenderStyle& childStyle, ItemPosition resolvedAutoPositionForRenderer)
{
if (childStyle.justifySelfPosition() == ItemPositionAuto)
return (parentStyle.justifyItemsPosition() == ItemPositionAuto) ? StyleSelfAlignmentData(resolvedAutoPositionForRenderer, OverflowAlignmentDefault) : parentStyle.justifyItems();
return childStyle.justifySelf();
}
ItemPosition RenderStyle::resolveAlignment(const RenderStyle& parentStyle, const RenderStyle& childStyle, ItemPosition resolvedAutoPositionForRenderer)
{
return resolveAlignmentData(parentStyle, childStyle, resolvedAutoPositionForRenderer).position();
}
OverflowAlignment RenderStyle::resolveAlignmentOverflow(const RenderStyle& parentStyle, const RenderStyle& childStyle)
{
return resolveJustificationData(parentStyle, childStyle, ItemPositionStretch).overflow();
}
ItemPosition RenderStyle::resolveJustification(const RenderStyle& parentStyle, const RenderStyle& childStyle, ItemPosition resolvedAutoPositionForRenderer)
{
return resolveJustificationData(parentStyle, childStyle, resolvedAutoPositionForRenderer).position();
}
OverflowAlignment RenderStyle::resolveJustificationOverflow(const RenderStyle& parentStyle, const RenderStyle& childStyle)
{
return resolveJustificationData(parentStyle, childStyle, ItemPositionStretch).overflow();
}
void RenderStyle::resolveContentAlignment(const RenderStyle& style, ContentPosition& position, ContentDistributionType& distribution)
{
if (position != ContentPositionAuto || distribution != ContentDistributionDefault)
return;
if (style.isDisplayFlexibleBox())
distribution = ContentDistributionStretch;
else
position = ContentPositionStart;
}
void RenderStyle::resolveContentJustification(const RenderStyle& style, ContentPosition& position)
{
if (position != ContentPositionAuto || style.justifyContentDistribution() != ContentDistributionDefault)
return;
if (style.isDisplayFlexibleBox())
position = ContentPositionFlexStart;
else
position = ContentPositionStart;
}
void RenderStyle::inheritFrom(const RenderStyle* inheritParent, IsAtShadowBoundary isAtShadowBoundary)
{
if (isAtShadowBoundary == AtShadowBoundary) {
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 RenderStyle::copyNonInheritedFrom(const RenderStyle* other)
{
m_box = other->m_box;
visual = other->visual;
m_background = other->m_background;
surround = other->surround;
rareNonInheritedData = other->rareNonInheritedData;
noninherited_flags.copyNonInheritedFrom(other->noninherited_flags);
if (m_svgStyle != other->m_svgStyle)
m_svgStyle.access()->copyNonInheritedFrom(other->m_svgStyle.get());
ASSERT(zoom() == initialZoom());
}
bool RenderStyle::operator==(const RenderStyle& o) const
{
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 RenderStyle::isStyleAvailable() const
{
return this != StyleResolver::styleNotYetAvailable();
}
bool RenderStyle::hasUniquePseudoStyle() const
{
if (!m_cachedPseudoStyles || styleType() != NOPSEUDO)
return false;
for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) {
RenderStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get();
if (pseudoStyle->unique())
return true;
}
return false;
}
RenderStyle* RenderStyle::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) {
RenderStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get();
if (pseudoStyle->styleType() == pid)
return pseudoStyle;
}
return 0;
}
RenderStyle* RenderStyle::addCachedPseudoStyle(PassRefPtr<RenderStyle> pseudo)
{
if (!pseudo)
return 0;
ASSERT(pseudo->styleType() > NOPSEUDO);
RenderStyle* result = pseudo.get();
if (!m_cachedPseudoStyles)
m_cachedPseudoStyles = std::make_unique<PseudoStyleCache>();
m_cachedPseudoStyles->append(pseudo);
return result;
}
void RenderStyle::removeCachedPseudoStyle(PseudoId pid)
{
if (!m_cachedPseudoStyles)
return;
for (size_t i = 0; i < m_cachedPseudoStyles->size(); ++i) {
RenderStyle* pseudoStyle = m_cachedPseudoStyles->at(i).get();
if (pseudoStyle->styleType() == pid) {
m_cachedPseudoStyles->remove(i);
return;
}
}
}
bool RenderStyle::inheritedNotEqual(const RenderStyle* other) const
{
return inherited_flags != other->inherited_flags
|| inherited != other->inherited
|| m_svgStyle->inheritedNotEqual(other->m_svgStyle.get())
|| rareInheritedData != other->rareInheritedData;
}
#if ENABLE(IOS_TEXT_AUTOSIZING)
inline unsigned computeFontHash(const FontCascade& font)
{
unsigned hashCodes[2] = {
CaseFoldingHash::hash(font.fontDescription().firstFamily().impl()),
static_cast<unsigned>(font.fontDescription().specifiedSize())
};
return StringHasher::computeHash(reinterpret_cast<UChar*>(hashCodes), 2 * sizeof(unsigned) / sizeof(UChar));
}
uint32_t RenderStyle::hashForTextAutosizing() const
{
uint32_t hash = 0;
hash ^= rareNonInheritedData->m_appearance;
hash ^= rareNonInheritedData->marginBeforeCollapse;
hash ^= rareNonInheritedData->marginAfterCollapse;
hash ^= rareNonInheritedData->lineClamp.value();
hash ^= rareInheritedData->overflowWrap;
hash ^= rareInheritedData->nbspMode;
hash ^= rareInheritedData->lineBreak;
hash ^= WTF::FloatHash<float>::hash(inherited->specifiedLineHeight.value());
hash ^= computeFontHash(inherited->fontCascade);
hash ^= inherited->horizontal_border_spacing;
hash ^= inherited->vertical_border_spacing;
hash ^= inherited_flags._box_direction;
hash ^= inherited_flags.m_rtlOrdering;
hash ^= noninherited_flags.position();
hash ^= noninherited_flags.floating();
hash ^= rareNonInheritedData->textOverflow;
hash ^= rareInheritedData->textSecurity;
return hash;
}
bool RenderStyle::equalForTextAutosizing(const RenderStyle* other) const
{
return rareNonInheritedData->m_appearance == other->rareNonInheritedData->m_appearance
&& rareNonInheritedData->marginBeforeCollapse == other->rareNonInheritedData->marginBeforeCollapse
&& rareNonInheritedData->marginAfterCollapse == other->rareNonInheritedData->marginAfterCollapse
&& rareNonInheritedData->lineClamp == other->rareNonInheritedData->lineClamp
&& rareInheritedData->textSizeAdjust == other->rareInheritedData->textSizeAdjust
&& rareInheritedData->overflowWrap == other->rareInheritedData->overflowWrap
&& rareInheritedData->nbspMode == other->rareInheritedData->nbspMode
&& rareInheritedData->lineBreak == other->rareInheritedData->lineBreak
&& rareInheritedData->textSecurity == other->rareInheritedData->textSecurity
&& inherited->specifiedLineHeight == other->inherited->specifiedLineHeight
&& inherited->fontCascade.equalForTextAutoSizing(other->inherited->fontCascade)
&& inherited->horizontal_border_spacing == other->inherited->horizontal_border_spacing
&& inherited->vertical_border_spacing == other->inherited->vertical_border_spacing
&& inherited_flags._box_direction == other->inherited_flags._box_direction
&& inherited_flags.m_rtlOrdering == other->inherited_flags.m_rtlOrdering
&& noninherited_flags.position() == other->noninherited_flags.position()
&& noninherited_flags.floating() == other->noninherited_flags.floating()
&& rareNonInheritedData->textOverflow == other->rareNonInheritedData->textOverflow;
}
#endif // ENABLE(IOS_TEXT_AUTOSIZING)
bool RenderStyle::inheritedDataShared(const RenderStyle* other) const
{
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 positionChangeIsMovementOnly(const LengthBox& a, const LengthBox& b, const Length& width)
{
if (a.left().type() != b.left().type()
|| a.right().type() != b.right().type()
|| a.top().type() != b.top().type()
|| a.bottom().type() != b.bottom().type())
return false;
if (!a.left().isIntrinsicOrAuto() && !a.right().isIntrinsicOrAuto())
return false;
if (!a.top().isIntrinsicOrAuto() && !a.bottom().isIntrinsicOrAuto())
return false;
if ((!a.left().isIntrinsicOrAuto() || !a.right().isIntrinsicOrAuto()) && width.isIntrinsicOrAuto())
return false;
return true;
}
inline bool RenderStyle::changeAffectsVisualOverflow(const RenderStyle& other) const
{
if (rareNonInheritedData.get() != other.rareNonInheritedData.get()
&& !rareNonInheritedData->shadowDataEquivalent(*other.rareNonInheritedData.get()))
return true;
if (rareInheritedData.get() != other.rareInheritedData.get()
&& !rareInheritedData->shadowDataEquivalent(*other.rareInheritedData.get()))
return true;
if (inherited_flags._text_decorations != other.inherited_flags._text_decorations
|| visual->textDecoration != other.visual->textDecoration
|| rareNonInheritedData->m_textDecorationStyle != other.rareNonInheritedData->m_textDecorationStyle) {
if (textUnderlinePosition() == TextUnderlinePositionUnder
|| other.textUnderlinePosition() == TextUnderlinePositionUnder)
return true;
return visualOverflowForDecorations(*this, nullptr) != visualOverflowForDecorations(other, nullptr);
}
return false;
}
bool RenderStyle::changeRequiresLayout(const RenderStyle& other, unsigned& changedContextSensitiveProperties) const
{
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() || noninherited_flags.verticalAlign() != other.noninherited_flags.verticalAlign())
return true;
if (m_box->boxSizing() != other.m_box->boxSizing())
return true;
if (surround->margin != other.surround->margin)
return true;
if (surround->padding != other.surround->padding)
return true;
if (changeAffectsVisualOverflow(other))
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->m_initialLetter != other.rareNonInheritedData->m_initialLetter
|| rareNonInheritedData->textOverflow != other.rareNonInheritedData->textOverflow)
return true;
if (rareNonInheritedData->m_regionFragment != other.rareNonInheritedData->m_regionFragment)
return true;
#if ENABLE(CSS_SHAPES)
if (rareNonInheritedData->m_shapeMargin != other.rareNonInheritedData->m_shapeMargin)
return true;
#endif
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;
if (rareNonInheritedData->m_order != other.rareNonInheritedData->m_order
|| rareNonInheritedData->m_alignContent != other.rareNonInheritedData->m_alignContent
|| rareNonInheritedData->m_alignItems != other.rareNonInheritedData->m_alignItems
|| rareNonInheritedData->m_alignSelf != other.rareNonInheritedData->m_alignSelf
|| rareNonInheritedData->m_justifyContent != other.rareNonInheritedData->m_justifyContent)
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 (rareNonInheritedData->m_transform != other.rareNonInheritedData->m_transform) {
if (rareNonInheritedData->m_transform->hasTransform() != other.rareNonInheritedData->m_transform->hasTransform())
return true;
if (*rareNonInheritedData->m_transform != *other.rareNonInheritedData->m_transform) {
changedContextSensitiveProperties |= ContextSensitivePropertyTransform;
}
}
#if ENABLE(CSS_GRID_LAYOUT)
if (rareNonInheritedData->m_grid.get() != other.rareNonInheritedData->m_grid.get()
|| rareNonInheritedData->m_gridItem.get() != other.rareNonInheritedData->m_gridItem.get())
return true;
#endif
#if ENABLE(DASHBOARD_SUPPORT)
if (rareNonInheritedData->m_dashboardRegions != other.rareNonInheritedData->m_dashboardRegions)
return true;
#endif
}
if (rareInheritedData.get() != other.rareInheritedData.get()) {
if (rareInheritedData->indent != other.rareInheritedData->indent
#if ENABLE(CSS3_TEXT)
|| rareInheritedData->m_textAlignLast != other.rareInheritedData->m_textAlignLast
|| rareInheritedData->m_textJustify != other.rareInheritedData->m_textJustify
|| rareInheritedData->m_textIndentLine != other.rareInheritedData->m_textIndentLine
#endif
|| rareInheritedData->m_effectiveZoom != other.rareInheritedData->m_effectiveZoom
#if ENABLE(IOS_TEXT_AUTOSIZING)
|| rareInheritedData->textSizeAdjust != other.rareInheritedData->textSizeAdjust
#endif
|| rareInheritedData->wordBreak != other.rareInheritedData->wordBreak
|| rareInheritedData->overflowWrap != other.rareInheritedData->overflowWrap
|| rareInheritedData->nbspMode != other.rareInheritedData->nbspMode
|| 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_textOrientation != other.rareInheritedData->m_textOrientation
|| rareInheritedData->m_tabSize != other.rareInheritedData->m_tabSize
|| rareInheritedData->m_lineBoxContain != other.rareInheritedData->m_lineBoxContain
|| rareInheritedData->m_lineGrid != other.rareInheritedData->m_lineGrid
#if ENABLE(CSS_IMAGE_ORIENTATION)
|| rareInheritedData->m_imageOrientation != other.rareInheritedData->m_imageOrientation
#endif
#if ENABLE(CSS_IMAGE_RESOLUTION)
|| rareInheritedData->m_imageResolutionSource != other.rareInheritedData->m_imageResolutionSource
|| rareInheritedData->m_imageResolutionSnap != other.rareInheritedData->m_imageResolutionSnap
|| rareInheritedData->m_imageResolution != other.rareInheritedData->m_imageResolution
#endif
|| rareInheritedData->m_lineSnap != other.rareInheritedData->m_lineSnap
|| rareInheritedData->m_lineAlign != other.rareInheritedData->m_lineAlign
#if ENABLE(ACCELERATED_OVERFLOW_SCROLLING)
|| rareInheritedData->useTouchOverflowScrolling != other.rareInheritedData->useTouchOverflowScrolling
#endif
|| rareInheritedData->listStyleImage != other.rareInheritedData->listStyleImage)
return true;
if (textStrokeWidth() != other.textStrokeWidth())
return true;
}
#if ENABLE(TEXT_AUTOSIZING)
if (visual->m_textAutosizingMultiplier != other.visual->m_textAutosizingMultiplier)
return true;
#endif
if (inherited->line_height != other.inherited->line_height
#if ENABLE(IOS_TEXT_AUTOSIZING)
|| inherited->specifiedLineHeight != other.inherited->specifiedLineHeight
#endif
|| inherited->fontCascade != other.inherited->fontCascade
|| inherited->horizontal_border_spacing != other.inherited->horizontal_border_spacing
|| inherited->vertical_border_spacing != other.inherited->vertical_border_spacing
|| inherited_flags._box_direction != other.inherited_flags._box_direction
|| inherited_flags.m_rtlOrdering != other.inherited_flags.m_rtlOrdering
|| noninherited_flags.position() != other.noninherited_flags.position()
|| noninherited_flags.floating() != other.noninherited_flags.floating()
|| noninherited_flags.originalDisplay() != other.noninherited_flags.originalDisplay())
return true;
if ((noninherited_flags.effectiveDisplay()) >= TABLE) {
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;
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;
}
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 (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
|| noninherited_flags.clear() != other.noninherited_flags.clear()
|| noninherited_flags.unicodeBidi() != other.noninherited_flags.unicodeBidi())
return true;
if (inherited_flags.m_writingMode != other.inherited_flags.m_writingMode)
return true;
if (rareNonInheritedData->m_textCombine != other.rareNonInheritedData->m_textCombine)
return true;
if (noninherited_flags.overflowX() != other.noninherited_flags.overflowX()
|| noninherited_flags.overflowY() != other.noninherited_flags.overflowY())
return true;
if (borderLeftWidth() != other.borderLeftWidth()
|| borderTopWidth() != other.borderTopWidth()
|| borderBottomWidth() != other.borderBottomWidth()
|| borderRightWidth() != other.borderRightWidth())
return true;
const CounterDirectiveMap* mapA = rareNonInheritedData->m_counterDirectives.get();
const CounterDirectiveMap* mapB = other.rareNonInheritedData->m_counterDirectives.get();
if (!(mapA == mapB || (mapA && mapB && *mapA == *mapB)))
return true;
if ((visibility() == COLLAPSE) != (other.visibility() == COLLAPSE))
return true;
if (rareNonInheritedData->hasOpacity() != other.rareNonInheritedData->hasOpacity()) {
return true;
}
if (rareNonInheritedData->hasFilters() != other.rareNonInheritedData->hasFilters())
return true;
#if ENABLE(FILTERS_LEVEL_2)
if (rareNonInheritedData->hasBackdropFilters() != other.rareNonInheritedData->hasBackdropFilters())
return true;
#endif
const QuotesData* quotesDataA = rareInheritedData->quotes.get();
const QuotesData* quotesDataB = other.rareInheritedData->quotes.get();
if (!(quotesDataA == quotesDataB || (quotesDataA && quotesDataB && *quotesDataA == *quotesDataB)))
return true;
if (position() != StaticPosition) {
if (surround->offset != other.surround->offset) {
if (position() != AbsolutePosition)
return true;
if (!positionChangeIsMovementOnly(surround->offset, other.surround->offset, m_box->width()))
return true;
}
}
return false;
}
bool RenderStyle::changeRequiresPositionedLayoutOnly(const RenderStyle& other, unsigned&) const
{
if (position() == StaticPosition)
return false;
if (surround->offset != other.surround->offset) {
if (position() == AbsolutePosition && positionChangeIsMovementOnly(surround->offset, other.surround->offset, m_box->width()))
return true;
}
return false;
}
bool RenderStyle::changeRequiresLayerRepaint(const RenderStyle& other, unsigned& changedContextSensitiveProperties) const
{
if (m_box->zIndex() != other.m_box->zIndex() || m_box->hasAutoZIndex() != other.m_box->hasAutoZIndex())
return true;
if (position() != StaticPosition) {
if (visual->clip != other.visual->clip || visual->hasClip != other.visual->hasClip) {
changedContextSensitiveProperties |= ContextSensitivePropertyClipRect;
return true;
}
}
#if ENABLE(CSS_COMPOSITING)
if (rareNonInheritedData->m_effectiveBlendMode != other.rareNonInheritedData->m_effectiveBlendMode)
return true;
#endif
if (rareNonInheritedData->opacity != other.rareNonInheritedData->opacity) {
changedContextSensitiveProperties |= ContextSensitivePropertyOpacity;
}
if (rareNonInheritedData->m_filter.get() != other.rareNonInheritedData->m_filter.get()
&& *rareNonInheritedData->m_filter.get() != *other.rareNonInheritedData->m_filter.get()) {
changedContextSensitiveProperties |= ContextSensitivePropertyFilter;
}
if (rareNonInheritedData->m_mask != other.rareNonInheritedData->m_mask
|| rareNonInheritedData->m_maskBoxImage != other.rareNonInheritedData->m_maskBoxImage)
return true;
return false;
}
bool RenderStyle::changeRequiresRepaint(const RenderStyle& other, unsigned& changedContextSensitiveProperties) 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
|| inherited_flags._insideDefaultButton != other.inherited_flags._insideDefaultButton
|| surround->border != other.surround->border
|| !m_background->isEquivalentForPainting(*other.m_background)
|| rareInheritedData->userModify != other.rareInheritedData->userModify
|| rareInheritedData->userSelect != other.rareInheritedData->userSelect
|| rareNonInheritedData->userDrag != other.rareNonInheritedData->userDrag
|| rareNonInheritedData->m_borderFit != other.rareNonInheritedData->m_borderFit
|| rareNonInheritedData->m_objectFit != other.rareNonInheritedData->m_objectFit
|| rareInheritedData->m_imageRendering != other.rareInheritedData->m_imageRendering)
return true;
#if ENABLE(CSS_SHAPES)
if (rareNonInheritedData->m_shapeOutside != other.rareNonInheritedData->m_shapeOutside)
return true;
#endif
if (rareNonInheritedData->m_clipPath != other.rareNonInheritedData->m_clipPath) {
changedContextSensitiveProperties |= ContextSensitivePropertyClipPath;
}
return false;
}
bool RenderStyle::changeRequiresRepaintIfTextOrBorderOrOutline(const RenderStyle& other, unsigned&) const
{
if (inherited->color != other.inherited->color
|| inherited_flags._text_decorations != other.inherited_flags._text_decorations
|| visual->textDecoration != other.visual->textDecoration
|| rareNonInheritedData->m_textDecorationStyle != other.rareNonInheritedData->m_textDecorationStyle
|| rareNonInheritedData->m_textDecorationColor != other.rareNonInheritedData->m_textDecorationColor
|| rareInheritedData->m_textDecorationSkip != other.rareInheritedData->m_textDecorationSkip
|| rareInheritedData->textFillColor != other.rareInheritedData->textFillColor
|| rareInheritedData->textStrokeColor != other.rareInheritedData->textStrokeColor
|| rareInheritedData->textEmphasisColor != other.rareInheritedData->textEmphasisColor
|| rareInheritedData->textEmphasisFill != other.rareInheritedData->textEmphasisFill)
return true;
return false;
}
bool RenderStyle::changeRequiresRecompositeLayer(const RenderStyle& other, unsigned&) const
{
if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) {
if (rareNonInheritedData->m_transformStyle3D != other.rareNonInheritedData->m_transformStyle3D
|| rareNonInheritedData->m_backfaceVisibility != other.rareNonInheritedData->m_backfaceVisibility
|| rareNonInheritedData->m_perspective != other.rareNonInheritedData->m_perspective
|| rareNonInheritedData->m_perspectiveOriginX != other.rareNonInheritedData->m_perspectiveOriginX
|| rareNonInheritedData->m_perspectiveOriginY != other.rareNonInheritedData->m_perspectiveOriginY)
return true;
}
return false;
}
StyleDifference RenderStyle::diff(const RenderStyle& other, unsigned& changedContextSensitiveProperties) const
{
changedContextSensitiveProperties = ContextSensitivePropertyNone;
StyleDifference svgChange = StyleDifferenceEqual;
if (m_svgStyle != other.m_svgStyle) {
svgChange = m_svgStyle->diff(other.m_svgStyle.get());
if (svgChange == StyleDifferenceLayout)
return svgChange;
}
if (changeRequiresLayout(other, changedContextSensitiveProperties))
return StyleDifferenceLayout;
if (svgChange != StyleDifferenceEqual)
return svgChange;
if (changeRequiresPositionedLayoutOnly(other, changedContextSensitiveProperties))
return StyleDifferenceLayoutPositionedMovementOnly;
if (changeRequiresLayerRepaint(other, changedContextSensitiveProperties))
return StyleDifferenceRepaintLayer;
if (changeRequiresRepaint(other, changedContextSensitiveProperties))
return StyleDifferenceRepaint;
if (changeRequiresRecompositeLayer(other, changedContextSensitiveProperties))
return StyleDifferenceRecompositeLayer;
if (changeRequiresRepaintIfTextOrBorderOrOutline(other, changedContextSensitiveProperties))
return StyleDifferenceRepaintIfTextOrBorderOrOutline;
return StyleDifferenceEqual;
}
bool RenderStyle::diffRequiresLayerRepaint(const RenderStyle& style, bool isComposited) const
{
unsigned changedContextSensitiveProperties = 0;
if (changeRequiresRepaint(style, changedContextSensitiveProperties))
return true;
if (isComposited && changeRequiresLayerRepaint(style, changedContextSensitiveProperties))
return changedContextSensitiveProperties & ContextSensitivePropertyClipRect;
return false;
}
void RenderStyle::setClip(Length top, Length right, Length bottom, Length left)
{
StyleVisualData* data = visual.access();
data->clip.top() = top;
data->clip.right() = right;
data->clip.bottom() = bottom;
data->clip.left() = left;
}
void RenderStyle::addCursor(PassRefPtr<StyleImage> image, const IntPoint& hotSpot)
{
if (!rareInheritedData.access()->cursorData)
rareInheritedData.access()->cursorData = CursorList::create();
rareInheritedData.access()->cursorData->append(CursorData(image, hotSpot));
}
void RenderStyle::setCursorList(PassRefPtr<CursorList> other)
{
rareInheritedData.access()->cursorData = other;
}
void RenderStyle::setQuotes(PassRefPtr<QuotesData> q)
{
if (rareInheritedData->quotes == q || (rareInheritedData->quotes && q && *rareInheritedData->quotes == *q))
return;
rareInheritedData.access()->quotes = q;
}
void RenderStyle::clearCursorList()
{
if (rareInheritedData->cursorData)
rareInheritedData.access()->cursorData = nullptr;
}
void RenderStyle::clearContent()
{
if (rareNonInheritedData->m_content)
rareNonInheritedData.access()->m_content = nullptr;
}
void RenderStyle::appendContent(std::unique_ptr<ContentData> contentData)
{
auto& content = rareNonInheritedData.access()->m_content;
ContentData* lastContent = content.get();
while (lastContent && lastContent->next())
lastContent = lastContent->next();
if (lastContent)
lastContent->setNext(WTF::move(contentData));
else
content = WTF::move(contentData);
}
void RenderStyle::setContent(PassRefPtr<StyleImage> image, bool add)
{
if (!image)
return;
if (add) {
appendContent(std::make_unique<ImageContentData>(image));
return;
}
rareNonInheritedData.access()->m_content = std::make_unique<ImageContentData>(image);
if (!rareNonInheritedData.access()->m_altText.isNull())
rareNonInheritedData.access()->m_content->setAltText(rareNonInheritedData.access()->m_altText);
}
void RenderStyle::setContent(const String& string, bool add)
{
auto& content = rareNonInheritedData.access()->m_content;
if (add) {
ContentData* lastContent = content.get();
while (lastContent && lastContent->next())
lastContent = lastContent->next();
if (lastContent) {
if (is<TextContentData>(*lastContent)) {
TextContentData& textContent = downcast<TextContentData>(*lastContent);
textContent.setText(textContent.text() + string);
} else
lastContent->setNext(std::make_unique<TextContentData>(string));
if (!rareNonInheritedData.access()->m_altText.isNull())
lastContent->setAltText(rareNonInheritedData.access()->m_altText);
return;
}
}
content = std::make_unique<TextContentData>(string);
if (!rareNonInheritedData.access()->m_altText.isNull())
content->setAltText(rareNonInheritedData.access()->m_altText);
}
void RenderStyle::setContent(std::unique_ptr<CounterContent> counter, bool add)
{
if (!counter)
return;
if (add) {
appendContent(std::make_unique<CounterContentData>(WTF::move(counter)));
return;
}
rareNonInheritedData.access()->m_content = std::make_unique<CounterContentData>(WTF::move(counter));
}
void RenderStyle::setContent(QuoteType quote, bool add)
{
if (add) {
appendContent(std::make_unique<QuoteContentData>(quote));
return;
}
rareNonInheritedData.access()->m_content = std::make_unique<QuoteContentData>(quote);
}
void RenderStyle::setContentAltText(const String& string)
{
rareNonInheritedData.access()->m_altText = string;
if (rareNonInheritedData.access()->m_content)
rareNonInheritedData.access()->m_content->setAltText(string);
}
const String& RenderStyle::contentAltText() const
{
return rareNonInheritedData->m_altText;
}
static inline bool requireTransformOrigin(const Vector<RefPtr<TransformOperation>>& transformOperations, RenderStyle::ApplyTransformOrigin applyOrigin)
{
if (applyOrigin != RenderStyle::IncludeTransformOrigin)
return false;
for (auto& operation : transformOperations) {
TransformOperation::OperationType type = operation->type();
if (type != TransformOperation::TRANSLATE_X
&& type != TransformOperation::TRANSLATE_Y
&& type != TransformOperation::TRANSLATE
&& type != TransformOperation::TRANSLATE_Z
&& type != TransformOperation::TRANSLATE_3D)
return true;
}
return false;
}
void RenderStyle::applyTransform(TransformationMatrix& transform, const FloatRect& boundingBox, ApplyTransformOrigin applyOrigin) const
{
auto& operations = rareNonInheritedData->m_transform->m_operations.operations();
bool applyTransformOrigin = requireTransformOrigin(operations, applyOrigin);
float offsetX = transformOriginX().isPercent() ? boundingBox.x() : 0;
float offsetY = transformOriginY().isPercent() ? boundingBox.y() : 0;
if (applyTransformOrigin) {
transform.translate3d(floatValueForLength(transformOriginX(), boundingBox.width()) + offsetX,
floatValueForLength(transformOriginY(), boundingBox.height()) + offsetY,
transformOriginZ());
}
for (auto& operation : operations)
operation->apply(transform, boundingBox.size());
if (applyTransformOrigin) {
transform.translate3d(-floatValueForLength(transformOriginX(), boundingBox.width()) - offsetX,
-floatValueForLength(transformOriginY(), boundingBox.height()) - offsetY,
-transformOriginZ());
}
}
void RenderStyle::setPageScaleTransform(float scale)
{
if (scale == 1)
return;
TransformOperations transform;
transform.operations().append(ScaleTransformOperation::create(scale, scale, ScaleTransformOperation::SCALE));
setTransform(transform);
setTransformOriginX(Length(0, Fixed));
setTransformOriginY(Length(0, Fixed));
}
void RenderStyle::setTextShadow(std::unique_ptr<ShadowData> shadowData, bool add)
{
ASSERT(!shadowData || (!shadowData->spread() && shadowData->style() == Normal));
StyleRareInheritedData* rareData = rareInheritedData.access();
if (!add) {
rareData->textShadow = WTF::move(shadowData);
return;
}
shadowData->setNext(WTF::move(rareData->textShadow));
rareData->textShadow = WTF::move(shadowData);
}
void RenderStyle::setBoxShadow(std::unique_ptr<ShadowData> shadowData, bool add)
{
StyleRareNonInheritedData* rareData = rareNonInheritedData.access();
if (!add) {
rareData->m_boxShadow = WTF::move(shadowData);
return;
}
shadowData->setNext(WTF::move(rareData->m_boxShadow));
rareData->m_boxShadow = WTF::move(shadowData);
}
static RoundedRect::Radii calcRadiiFor(const BorderData& border, const LayoutSize& size)
{
return RoundedRect::Radii(
LayoutSize(valueForLength(border.topLeft().width(), size.width()),
valueForLength(border.topLeft().height(), size.height())),
LayoutSize(valueForLength(border.topRight().width(), size.width()),
valueForLength(border.topRight().height(), size.height())),
LayoutSize(valueForLength(border.bottomLeft().width(), size.width()),
valueForLength(border.bottomLeft().height(), size.height())),
LayoutSize(valueForLength(border.bottomRight().width(), size.width()),
valueForLength(border.bottomRight().height(), size.height())));
}
StyleImage* RenderStyle::listStyleImage() const { return rareInheritedData->listStyleImage.get(); }
void RenderStyle::setListStyleImage(PassRefPtr<StyleImage> v)
{
if (rareInheritedData->listStyleImage != v)
rareInheritedData.access()->listStyleImage = v;
}
Color RenderStyle::color() const { return inherited->color; }
Color RenderStyle::visitedLinkColor() const { return inherited->visitedLinkColor; }
void RenderStyle::setColor(const Color& v) { SET_VAR(inherited, color, v); }
void RenderStyle::setVisitedLinkColor(const Color& v) { SET_VAR(inherited, visitedLinkColor, v); }
short RenderStyle::horizontalBorderSpacing() const { return inherited->horizontal_border_spacing; }
short RenderStyle::verticalBorderSpacing() const { return inherited->vertical_border_spacing; }
void RenderStyle::setHorizontalBorderSpacing(short v) { SET_VAR(inherited, horizontal_border_spacing, v); }
void RenderStyle::setVerticalBorderSpacing(short v) { SET_VAR(inherited, vertical_border_spacing, v); }
RoundedRect RenderStyle::getRoundedBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const
{
RoundedRect roundedRect(borderRect);
if (hasBorderRadius()) {
RoundedRect::Radii radii = calcRadiiFor(surround->border, borderRect.size());
radii.scale(calcBorderRadiiConstraintScaleFor(borderRect, radii));
roundedRect.includeLogicalEdges(radii, isHorizontalWritingMode(), includeLogicalLeftEdge, includeLogicalRightEdge);
}
return roundedRect;
}
RoundedRect RenderStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const
{
bool horizontal = isHorizontalWritingMode();
LayoutUnit leftWidth = (!horizontal || includeLogicalLeftEdge) ? borderLeftWidth() : 0;
LayoutUnit rightWidth = (!horizontal || includeLogicalRightEdge) ? borderRightWidth() : 0;
LayoutUnit topWidth = (horizontal || includeLogicalLeftEdge) ? borderTopWidth() : 0;
LayoutUnit bottomWidth = (horizontal || includeLogicalRightEdge) ? borderBottomWidth() : 0;
return getRoundedInnerBorderFor(borderRect, topWidth, bottomWidth, leftWidth, rightWidth, includeLogicalLeftEdge, includeLogicalRightEdge);
}
RoundedRect RenderStyle::getRoundedInnerBorderFor(const LayoutRect& borderRect, LayoutUnit topWidth, LayoutUnit bottomWidth,
LayoutUnit leftWidth, LayoutUnit rightWidth, bool includeLogicalLeftEdge, bool includeLogicalRightEdge) const
{
LayoutRect innerRect(borderRect.x() + leftWidth,
borderRect.y() + topWidth,
borderRect.width() - leftWidth - rightWidth,
borderRect.height() - topWidth - bottomWidth);
RoundedRect roundedRect(innerRect);
if (hasBorderRadius()) {
RoundedRect::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)
{
bool allFixed = true;
for (const FillLayer* currLayer = layer; currLayer; currLayer = currLayer->next())
allFixed &= (currLayer->image() && currLayer->attachment() == FixedBackgroundAttachment);
return layer && allFixed;
}
bool RenderStyle::hasEntirelyFixedBackground() const
{
return allLayersAreFixed(backgroundLayers());
}
const CounterDirectiveMap* RenderStyle::counterDirectives() const
{
return rareNonInheritedData->m_counterDirectives.get();
}
CounterDirectiveMap& RenderStyle::accessCounterDirectives()
{
auto& map = rareNonInheritedData.access()->m_counterDirectives;
if (!map)
map = std::make_unique<CounterDirectiveMap>();
return *map;
}
const CounterDirectives RenderStyle::getCounterDirectives(const AtomicString& identifier) const
{
if (const CounterDirectiveMap* directives = counterDirectives())
return directives->get(identifier);
return CounterDirectives();
}
const AtomicString& RenderStyle::hyphenString() const
{
ASSERT(hyphens() != HyphensNone);
const AtomicString& hyphenationString = rareInheritedData.get()->hyphenationString;
if (!hyphenationString.isNull())
return hyphenationString;
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, hyphenMinusString, (&hyphenMinus, 1));
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, hyphenString, (&hyphen, 1));
return fontCascade().primaryFont().glyphForCharacter(hyphen) ? hyphenString : hyphenMinusString;
}
const AtomicString& RenderStyle::textEmphasisMarkString() const
{
switch (textEmphasisMark()) {
case TextEmphasisMarkNone:
return nullAtom;
case TextEmphasisMarkCustom:
return textEmphasisCustomMark();
case TextEmphasisMarkDot: {
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, filledDotString, (&bullet, 1));
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, openDotString, (&whiteBullet, 1));
return textEmphasisFill() == TextEmphasisFillFilled ? filledDotString : openDotString;
}
case TextEmphasisMarkCircle: {
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, filledCircleString, (&blackCircle, 1));
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, openCircleString, (&whiteCircle, 1));
return textEmphasisFill() == TextEmphasisFillFilled ? filledCircleString : openCircleString;
}
case TextEmphasisMarkDoubleCircle: {
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, filledDoubleCircleString, (&fisheye, 1));
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, openDoubleCircleString, (&bullseye, 1));
return textEmphasisFill() == TextEmphasisFillFilled ? filledDoubleCircleString : openDoubleCircleString;
}
case TextEmphasisMarkTriangle: {
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, filledTriangleString, (&blackUpPointingTriangle, 1));
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, openTriangleString, (&whiteUpPointingTriangle, 1));
return textEmphasisFill() == TextEmphasisFillFilled ? filledTriangleString : openTriangleString;
}
case TextEmphasisMarkSesame: {
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, filledSesameString, (&sesameDot, 1));
DEPRECATED_DEFINE_STATIC_LOCAL(AtomicString, openSesameString, (&whiteSesameDot, 1));
return textEmphasisFill() == TextEmphasisFillFilled ? filledSesameString : openSesameString;
}
case TextEmphasisMarkAuto:
ASSERT_NOT_REACHED();
return nullAtom;
}
ASSERT_NOT_REACHED();
return nullAtom;
}
#if ENABLE(DASHBOARD_SUPPORT)
const Vector<StyleDashboardRegion>& RenderStyle::initialDashboardRegions()
{
DEPRECATED_DEFINE_STATIC_LOCAL(Vector<StyleDashboardRegion>, emptyList, ());
return emptyList;
}
const Vector<StyleDashboardRegion>& RenderStyle::noneDashboardRegions()
{
DEPRECATED_DEFINE_STATIC_LOCAL(Vector<StyleDashboardRegion>, noneList, ());
static bool noneListInitialized = false;
if (!noneListInitialized) {
StyleDashboardRegion region;
region.label = "";
region.offset.top() = Length();
region.offset.right() = Length();
region.offset.bottom() = Length();
region.offset.left() = Length();
region.type = StyleDashboardRegion::None;
noneList.append(region);
noneListInitialized = true;
}
return noneList;
}
#endif
void RenderStyle::adjustAnimations()
{
AnimationList* animationList = rareNonInheritedData->m_animations.get();
if (!animationList)
return;
for (size_t i = 0; i < animationList->size(); ++i) {
if (animationList->animation(i).isEmpty()) {
animationList->resize(i);
break;
}
}
if (animationList->isEmpty()) {
clearAnimations();
return;
}
animationList->fillUnsetProperties();
}
void RenderStyle::adjustTransitions()
{
AnimationList* transitionList = rareNonInheritedData->m_transitions.get();
if (!transitionList)
return;
for (size_t i = 0; i < transitionList->size(); ++i) {
if (transitionList->animation(i).isEmpty()) {
transitionList->resize(i);
break;
}
}
if (transitionList->isEmpty()) {
clearTransitions();
return;
}
transitionList->fillUnsetProperties();
for (size_t i = 0; i < transitionList->size(); ++i) {
for (size_t j = i+1; j < transitionList->size(); ++j) {
if (transitionList->animation(i).property() == transitionList->animation(j).property()) {
transitionList->remove(i);
j = i;
}
}
}
}
AnimationList& RenderStyle::ensureAnimations()
{
if (!rareNonInheritedData.access()->m_animations)
rareNonInheritedData.access()->m_animations = std::make_unique<AnimationList>();
return *rareNonInheritedData->m_animations;
}
AnimationList& RenderStyle::ensureTransitions()
{
if (!rareNonInheritedData.access()->m_transitions)
rareNonInheritedData.access()->m_transitions = std::make_unique<AnimationList>();
return *rareNonInheritedData->m_transitions;
}
const Animation* RenderStyle::transitionForProperty(CSSPropertyID property) const
{
if (transitions()) {
for (size_t i = 0; i < transitions()->size(); ++i) {
const Animation& p = transitions()->animation(i);
if (p.animationMode() == Animation::AnimateAll || p.property() == property) {
return &p;
}
}
}
return 0;
}
const FontCascade& RenderStyle::fontCascade() const { return inherited->fontCascade; }
const FontMetrics& RenderStyle::fontMetrics() const { return inherited->fontCascade.fontMetrics(); }
const FontDescription& RenderStyle::fontDescription() const { return inherited->fontCascade.fontDescription(); }
float RenderStyle::specifiedFontSize() const { return fontDescription().specifiedSize(); }
float RenderStyle::computedFontSize() const { return fontDescription().computedSize(); }
int RenderStyle::fontSize() const { return inherited->fontCascade.pixelSize(); }
const Length& RenderStyle::wordSpacing() const { return rareInheritedData->wordSpacing; }
float RenderStyle::letterSpacing() const { return inherited->fontCascade.letterSpacing(); }
bool RenderStyle::setFontDescription(const FontDescription& v)
{
if (inherited->fontCascade.fontDescription() != v) {
inherited.access()->fontCascade = FontCascade(v, inherited->fontCascade.letterSpacing(), inherited->fontCascade.wordSpacing());
return true;
}
return false;
}
#if ENABLE(IOS_TEXT_AUTOSIZING)
const Length& RenderStyle::specifiedLineHeight() const { return inherited->specifiedLineHeight; }
void RenderStyle::setSpecifiedLineHeight(Length v) { SET_VAR(inherited, specifiedLineHeight, v); }
#else
const Length& RenderStyle::specifiedLineHeight() const { return inherited->line_height; }
#endif
Length RenderStyle::lineHeight() const
{
const Length& lh = inherited->line_height;
#if ENABLE(TEXT_AUTOSIZING)
float multiplier = textAutosizingMultiplier();
if (multiplier > 1 && lh.isFixed())
return Length(TextAutosizer::computeAutosizedFontSize(lh.value(), multiplier), Fixed);
#endif
return lh;
}
void RenderStyle::setLineHeight(Length specifiedLineHeight) { SET_VAR(inherited, line_height, specifiedLineHeight); }
int RenderStyle::computedLineHeight() const
{
const Length& lh = lineHeight();
if (lh.isNegative())
return fontMetrics().lineSpacing();
if (lh.isPercentOrCalculated())
return minimumValueForLength(lh, fontSize());
return clampTo<int>(lh.value());
}
void RenderStyle::setWordSpacing(Length value)
{
float fontWordSpacing;
switch (value.type()) {
case Auto:
fontWordSpacing = 0;
break;
case Percent:
fontWordSpacing = value.percent() * fontCascade().spaceWidth() / 100;
break;
case Fixed:
fontWordSpacing = value.value();
break;
case Calculated:
fontWordSpacing = value.nonNanCalculatedValue(maxValueForCssLength);
break;
default:
ASSERT_NOT_REACHED();
fontWordSpacing = 0;
break;
}
inherited.access()->fontCascade.setWordSpacing(fontWordSpacing);
rareInheritedData.access()->wordSpacing = WTF::move(value);
}
void RenderStyle::setLetterSpacing(float v) { inherited.access()->fontCascade.setLetterSpacing(v); }
void RenderStyle::setFontSize(float size)
{
ASSERT(std::isfinite(size));
if (!std::isfinite(size) || size < 0)
size = 0;
else
size = std::min(maximumAllowedFontSize, size);
FontSelector* currentFontSelector = fontCascade().fontSelector();
FontDescription desc(fontDescription());
desc.setSpecifiedSize(size);
desc.setComputedSize(size);
#if ENABLE(TEXT_AUTOSIZING)
float multiplier = textAutosizingMultiplier();
if (multiplier > 1) {
float autosizedFontSize = TextAutosizer::computeAutosizedFontSize(size, multiplier);
desc.setComputedSize(min(maximumAllowedFontSize, autosizedFontSize));
}
#endif
setFontDescription(desc);
fontCascade().update(currentFontSelector);
}
void RenderStyle::getShadowExtent(const ShadowData* shadow, LayoutUnit &top, LayoutUnit &right, LayoutUnit &bottom, LayoutUnit &left) const
{
top = 0;
right = 0;
bottom = 0;
left = 0;
for ( ; shadow; shadow = shadow->next()) {
if (shadow->style() == Inset)
continue;
int extentAndSpread = shadow->paintingExtent() + shadow->spread();
top = std::min<LayoutUnit>(top, shadow->y() - extentAndSpread);
right = std::max<LayoutUnit>(right, shadow->x() + extentAndSpread);
bottom = std::max<LayoutUnit>(bottom, shadow->y() + extentAndSpread);
left = std::min<LayoutUnit>(left, shadow->x() - extentAndSpread);
}
}
LayoutBoxExtent RenderStyle::getShadowInsetExtent(const ShadowData* shadow) const
{
LayoutUnit top = 0;
LayoutUnit right = 0;
LayoutUnit bottom = 0;
LayoutUnit left = 0;
for ( ; shadow; shadow = shadow->next()) {
if (shadow->style() == Normal)
continue;
int extentAndSpread = shadow->paintingExtent() + shadow->spread();
top = std::max<LayoutUnit>(top, shadow->y() + extentAndSpread);
right = std::min<LayoutUnit>(right, shadow->x() - extentAndSpread);
bottom = std::min<LayoutUnit>(bottom, shadow->y() - extentAndSpread);
left = std::max<LayoutUnit>(left, shadow->x() + extentAndSpread);
}
return LayoutBoxExtent(top, right, bottom, left);
}
void RenderStyle::getShadowHorizontalExtent(const ShadowData* shadow, LayoutUnit &left, LayoutUnit &right) const
{
left = 0;
right = 0;
for ( ; shadow; shadow = shadow->next()) {
if (shadow->style() == Inset)
continue;
int extentAndSpread = shadow->paintingExtent() + shadow->spread();
left = std::min<LayoutUnit>(left, shadow->x() - extentAndSpread);
right = std::max<LayoutUnit>(right, shadow->x() + extentAndSpread);
}
}
void RenderStyle::getShadowVerticalExtent(const ShadowData* shadow, LayoutUnit &top, LayoutUnit &bottom) const
{
top = 0;
bottom = 0;
for ( ; shadow; shadow = shadow->next()) {
if (shadow->style() == Inset)
continue;
int extentAndSpread = shadow->paintingExtent() + shadow->spread();
top = std::min<LayoutUnit>(top, shadow->y() - extentAndSpread);
bottom = std::max<LayoutUnit>(bottom, shadow->y() + extentAndSpread);
}
}
Color RenderStyle::colorIncludingFallback(int colorProperty, bool visitedLink) const
{
Color result;
EBorderStyle borderStyle = BNONE;
switch (colorProperty) {
case CSSPropertyBackgroundColor:
return visitedLink ? visitedLinkBackgroundColor() : backgroundColor(); 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 CSSPropertyColumnRuleColor:
result = visitedLink ? visitedLinkColumnRuleColor() : columnRuleColor();
break;
case CSSPropertyWebkitTextDecorationColor:
return visitedLink ? visitedLinkTextDecorationColor() : textDecorationColor();
case CSSPropertyWebkitTextEmphasisColor:
result = visitedLink ? visitedLinkTextEmphasisColor() : textEmphasisColor();
break;
case CSSPropertyWebkitTextFillColor:
result = visitedLink ? visitedLinkTextFillColor() : textFillColor();
break;
case CSSPropertyWebkitTextStrokeColor:
result = visitedLink ? visitedLinkTextStrokeColor() : textStrokeColor();
break;
default:
ASSERT_NOT_REACHED();
break;
}
if (!result.isValid()) {
if (!visitedLink && (borderStyle == INSET || borderStyle == OUTSET || borderStyle == RIDGE || borderStyle == GROOVE))
result.setRGB(238, 238, 238);
else
result = visitedLink ? visitedLinkColor() : color();
}
return result;
}
Color RenderStyle::visitedDependentColor(int colorProperty) const
{
Color unvisitedColor = colorIncludingFallback(colorProperty, false);
if (insideLink() != InsideVisitedLink)
return unvisitedColor;
Color visitedColor = colorIncludingFallback(colorProperty, true);
if (colorProperty == CSSPropertyWebkitTextDecorationColor)
return visitedColor;
if (colorProperty == CSSPropertyBackgroundColor && visitedColor == Color::transparent)
return unvisitedColor;
return Color(visitedColor.red(), visitedColor.green(), visitedColor.blue(), unvisitedColor.alpha());
}
const BorderValue& RenderStyle::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& RenderStyle::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& RenderStyle::borderStart() const
{
if (isHorizontalWritingMode())
return isLeftToRightDirection() ? borderLeft() : borderRight();
return isLeftToRightDirection() ? borderTop() : borderBottom();
}
const BorderValue& RenderStyle::borderEnd() const
{
if (isHorizontalWritingMode())
return isLeftToRightDirection() ? borderRight() : borderLeft();
return isLeftToRightDirection() ? borderBottom() : borderTop();
}
float RenderStyle::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();
}
float RenderStyle::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();
}
float RenderStyle::borderStartWidth() const
{
if (isHorizontalWritingMode())
return isLeftToRightDirection() ? borderLeftWidth() : borderRightWidth();
return isLeftToRightDirection() ? borderTopWidth() : borderBottomWidth();
}
float RenderStyle::borderEndWidth() const
{
if (isHorizontalWritingMode())
return isLeftToRightDirection() ? borderRightWidth() : borderLeftWidth();
return isLeftToRightDirection() ? borderBottomWidth() : borderTopWidth();
}
void RenderStyle::setMarginStart(Length margin)
{
if (isHorizontalWritingMode()) {
if (isLeftToRightDirection())
setMarginLeft(margin);
else
setMarginRight(margin);
} else {
if (isLeftToRightDirection())
setMarginTop(margin);
else
setMarginBottom(margin);
}
}
void RenderStyle::setMarginEnd(Length margin)
{
if (isHorizontalWritingMode()) {
if (isLeftToRightDirection())
setMarginRight(margin);
else
setMarginLeft(margin);
} else {
if (isLeftToRightDirection())
setMarginBottom(margin);
else
setMarginTop(margin);
}
}
TextEmphasisMark RenderStyle::textEmphasisMark() const
{
TextEmphasisMark mark = static_cast<TextEmphasisMark>(rareInheritedData->textEmphasisMark);
if (mark != TextEmphasisMarkAuto)
return mark;
if (isHorizontalWritingMode())
return TextEmphasisMarkDot;
return TextEmphasisMarkSesame;
}
#if ENABLE(TOUCH_EVENTS)
Color RenderStyle::initialTapHighlightColor()
{
return RenderTheme::tapHighlightColor();
}
#endif
LayoutBoxExtent RenderStyle::imageOutsets(const NinePieceImage& image) const
{
return LayoutBoxExtent(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 RenderStyle::getFontAndGlyphOrientation(FontOrientation& fontOrientation, NonCJKGlyphOrientation& glyphOrientation)
{
if (isHorizontalWritingMode()) {
fontOrientation = Horizontal;
glyphOrientation = NonCJKGlyphOrientationVerticalRight;
return;
}
switch (textOrientation()) {
case TextOrientationVerticalRight:
fontOrientation = Vertical;
glyphOrientation = NonCJKGlyphOrientationVerticalRight;
return;
case TextOrientationUpright:
fontOrientation = Vertical;
glyphOrientation = NonCJKGlyphOrientationUpright;
return;
case TextOrientationSideways:
if (writingMode() == LeftToRightWritingMode) {
fontOrientation = Vertical;
glyphOrientation = NonCJKGlyphOrientationVerticalRight;
return;
}
fontOrientation = Horizontal;
glyphOrientation = NonCJKGlyphOrientationVerticalRight;
return;
case TextOrientationSidewaysRight:
fontOrientation = Horizontal;
glyphOrientation = NonCJKGlyphOrientationVerticalRight;
return;
default:
ASSERT_NOT_REACHED();
fontOrientation = Horizontal;
glyphOrientation = NonCJKGlyphOrientationVerticalRight;
return;
}
}
void RenderStyle::setBorderImageSource(PassRefPtr<StyleImage> image)
{
if (surround->border.m_image.image() == image.get())
return;
surround.access()->border.m_image.setImage(image);
}
void RenderStyle::setBorderImageSlices(LengthBox slices)
{
if (surround->border.m_image.imageSlices() == slices)
return;
surround.access()->border.m_image.setImageSlices(slices);
}
void RenderStyle::setBorderImageWidth(LengthBox slices)
{
if (surround->border.m_image.borderSlices() == slices)
return;
surround.access()->border.m_image.setBorderSlices(slices);
}
void RenderStyle::setBorderImageOutset(LengthBox outset)
{
if (surround->border.m_image.outset() == outset)
return;
surround.access()->border.m_image.setOutset(outset);
}
void RenderStyle::setColumnStylesFromPaginationMode(const Pagination::Mode& paginationMode)
{
if (paginationMode == Pagination::Unpaginated)
return;
setColumnFill(ColumnFillAuto);
switch (paginationMode) {
case Pagination::LeftToRightPaginated:
setColumnAxis(HorizontalColumnAxis);
if (isHorizontalWritingMode())
setColumnProgression(isLeftToRightDirection() ? NormalColumnProgression : ReverseColumnProgression);
else
setColumnProgression(isFlippedBlocksWritingMode() ? ReverseColumnProgression : NormalColumnProgression);
break;
case Pagination::RightToLeftPaginated:
setColumnAxis(HorizontalColumnAxis);
if (isHorizontalWritingMode())
setColumnProgression(isLeftToRightDirection() ? ReverseColumnProgression : NormalColumnProgression);
else
setColumnProgression(isFlippedBlocksWritingMode() ? NormalColumnProgression : ReverseColumnProgression);
break;
case Pagination::TopToBottomPaginated:
setColumnAxis(VerticalColumnAxis);
if (isHorizontalWritingMode())
setColumnProgression(isFlippedBlocksWritingMode() ? ReverseColumnProgression : NormalColumnProgression);
else
setColumnProgression(isLeftToRightDirection() ? NormalColumnProgression : ReverseColumnProgression);
break;
case Pagination::BottomToTopPaginated:
setColumnAxis(VerticalColumnAxis);
if (isHorizontalWritingMode())
setColumnProgression(isFlippedBlocksWritingMode() ? NormalColumnProgression : ReverseColumnProgression);
else
setColumnProgression(isLeftToRightDirection() ? ReverseColumnProgression : NormalColumnProgression);
break;
case Pagination::Unpaginated:
ASSERT_NOT_REACHED();
break;
}
}
#if ENABLE(CSS_SCROLL_SNAP)
LengthSize RenderStyle::initialScrollSnapDestination()
{
return defaultScrollSnapDestination();
}
Vector<LengthSize> RenderStyle::initialScrollSnapCoordinates()
{
return Vector<LengthSize>();
}
const ScrollSnapPoints* RenderStyle::scrollSnapPointsX() const
{
return rareNonInheritedData->m_scrollSnapPoints->xPoints.get();
}
const ScrollSnapPoints* RenderStyle::scrollSnapPointsY() const
{
return rareNonInheritedData->m_scrollSnapPoints->yPoints.get();
}
const LengthSize& RenderStyle::scrollSnapDestination() const
{
return rareNonInheritedData->m_scrollSnapPoints->destination;
}
const Vector<LengthSize>& RenderStyle::scrollSnapCoordinates() const
{
return rareNonInheritedData->m_scrollSnapPoints->coordinates;
}
void RenderStyle::setScrollSnapPointsX(std::unique_ptr<ScrollSnapPoints> points)
{
if (rareNonInheritedData->m_scrollSnapPoints->xPoints.get() == points.get())
return;
rareNonInheritedData.access()->m_scrollSnapPoints.access()->xPoints = WTF::move(points);
}
void RenderStyle::setScrollSnapPointsY(std::unique_ptr<ScrollSnapPoints> points)
{
if (rareNonInheritedData->m_scrollSnapPoints->yPoints.get() == points.get())
return;
rareNonInheritedData.access()->m_scrollSnapPoints.access()->yPoints = WTF::move(points);
}
void RenderStyle::setScrollSnapDestination(LengthSize destination)
{
if (rareNonInheritedData->m_scrollSnapPoints->destination == destination)
return;
rareNonInheritedData.access()->m_scrollSnapPoints.access()->destination = WTF::move(destination);
}
void RenderStyle::setScrollSnapCoordinates(Vector<LengthSize> coordinates)
{
if (rareNonInheritedData->m_scrollSnapPoints->coordinates == coordinates)
return;
rareNonInheritedData.access()->m_scrollSnapPoints.access()->coordinates = WTF::move(coordinates);
}
#endif
}