C++程序
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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
* Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
* Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
* Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
*
* 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 "CSSStyleSelector.h"
#include "Attribute.h"
#include "ContentData.h"
#include "CounterContent.h"
#include "CursorList.h"
#include "CSSBorderImageValue.h"
#include "CSSCursorImageValue.h"
#include "CSSFontFaceRule.h"
#include "CSSImportRule.h"
#include "CSSLineBoxContainValue.h"
#include "CSSMediaRule.h"
#include "CSSPageRule.h"
#include "CSSParser.h"
#include "CSSPrimitiveValueMappings.h"
#include "CSSPropertyNames.h"
#include "CSSReflectValue.h"
#include "CSSRuleList.h"
#include "CSSSelector.h"
#include "CSSSelectorList.h"
#include "CSSStyleApplyProperty.h"
#include "CSSStyleRule.h"
#include "CSSStyleSheet.h"
#include "CSSTimingFunctionValue.h"
#include "CSSValueList.h"
#include "CachedImage.h"
#include "Counter.h"
#include "FocusController.h"
#include "FontFamilyValue.h"
#include "FontValue.h"
#include "Frame.h"
#include "FrameView.h"
#include "HTMLDocument.h"
#include "HTMLElement.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "HTMLTextAreaElement.h"
#include "KeyframeList.h"
#include "LinkHash.h"
#include "Matrix3DTransformOperation.h"
#include "MatrixTransformOperation.h"
#include "MediaList.h"
#include "MediaQueryEvaluator.h"
#include "NodeRenderStyle.h"
#include "Page.h"
#include "PageGroup.h"
#include "Pair.h"
#include "PerspectiveTransformOperation.h"
#include "QuotesData.h"
#include "Rect.h"
#include "RenderScrollbar.h"
#include "RenderScrollbarTheme.h"
#include "RenderStyleConstants.h"
#include "RenderTheme.h"
#include "RotateTransformOperation.h"
#include "ScaleTransformOperation.h"
#include "SelectionController.h"
#include "Settings.h"
#include "ShadowData.h"
#include "ShadowValue.h"
#include "SkewTransformOperation.h"
#include "StyleCachedImage.h"
#include "StylePendingImage.h"
#include "StyleGeneratedImage.h"
#include "StyleSheetList.h"
#include "Text.h"
#include "TransformationMatrix.h"
#include "TranslateTransformOperation.h"
#include "UserAgentStyleSheets.h"
#include "WebKitCSSKeyframeRule.h"
#include "WebKitCSSKeyframesRule.h"
#include "WebKitCSSTransformValue.h"
#include "XMLNames.h"
#include <wtf/StdLibExtras.h>
#include <wtf/Vector.h>
#if USE(PLATFORM_STRATEGIES)
#include "PlatformStrategies.h"
#include "VisitedLinkStrategy.h"
#endif
#if ENABLE(DASHBOARD_SUPPORT)
#include "DashboardRegion.h"
#endif
#if ENABLE(SVG)
#include "XLinkNames.h"
#include "SVGNames.h"
#endif
#if ENABLE(WML)
#include "WMLNames.h"
#endif
#if PLATFORM(QT)
#include <qwebhistoryinterface.h>
#endif
using namespace std;
namespace WebCore {
using namespace HTMLNames;
#define HANDLE_INHERIT(prop, Prop) \
if (isInherit) { \
m_style->set##Prop(m_parentStyle->prop()); \
return; \
}
#define HANDLE_INHERIT_AND_INITIAL(prop, Prop) \
HANDLE_INHERIT(prop, Prop) \
if (isInitial) { \
m_style->set##Prop(RenderStyle::initial##Prop()); \
return; \
}
#define HANDLE_INHERIT_AND_INITIAL_WITH_VALUE(prop, Prop, Value) \
HANDLE_INHERIT(prop, Prop) \
if (isInitial) { \
m_style->set##Prop(RenderStyle::initial##Value());\
return;\
}
#define HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(prop, Prop) \
HANDLE_INHERIT_AND_INITIAL(prop, Prop) \
if (primitiveValue) \
m_style->set##Prop(*primitiveValue);
#define HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE_WITH_VALUE(prop, Prop, Value) \
HANDLE_INHERIT_AND_INITIAL_WITH_VALUE(prop, Prop, Value) \
if (primitiveValue) \
m_style->set##Prop(*primitiveValue);
#define HANDLE_ANIMATION_INHERIT_AND_INITIAL(prop, Prop) \
if (isInherit) { \
AnimationList* list = m_style->accessAnimations(); \
const AnimationList* parentList = m_parentStyle->animations(); \
size_t i = 0, parentSize = parentList ? parentList->size() : 0; \
for ( ; i < parentSize && parentList->animation(i)->is##Prop##Set(); ++i) { \
if (list->size() <= i) \
list->append(Animation::create()); \
list->animation(i)->set##Prop(parentList->animation(i)->prop()); \
} \
\
/* Reset any remaining animations to not have the property set. */ \
for ( ; i < list->size(); ++i) \
list->animation(i)->clear##Prop(); \
} else if (isInitial) { \
AnimationList* list = m_style->accessAnimations(); \
if (list->isEmpty()) \
list->append(Animation::create()); \
list->animation(0)->set##Prop(Animation::initialAnimation##Prop()); \
for (size_t i = 1; i < list->size(); ++i) \
list->animation(0)->clear##Prop(); \
}
#define HANDLE_ANIMATION_VALUE(prop, Prop, value) { \
HANDLE_ANIMATION_INHERIT_AND_INITIAL(prop, Prop) \
if (isInherit || isInitial) \
return; \
AnimationList* list = m_style->accessAnimations(); \
size_t childIndex = 0; \
if (value->isValueList()) { \
/* Walk each value and put it into an animation, creating new animations as needed. */ \
CSSValueList* valueList = static_cast<CSSValueList*>(value); \
for (unsigned int i = 0; i < valueList->length(); i++) { \
if (childIndex <= list->size()) \
list->append(Animation::create()); \
mapAnimation##Prop(list->animation(childIndex), valueList->itemWithoutBoundsCheck(i)); \
++childIndex; \
} \
} else { \
if (list->isEmpty()) \
list->append(Animation::create()); \
mapAnimation##Prop(list->animation(childIndex), value); \
childIndex = 1; \
} \
for ( ; childIndex < list->size(); ++childIndex) { \
/* Reset all remaining animations to not have the property set. */ \
list->animation(childIndex)->clear##Prop(); \
} \
}
#define HANDLE_TRANSITION_INHERIT_AND_INITIAL(prop, Prop) \
if (isInherit) { \
AnimationList* list = m_style->accessTransitions(); \
const AnimationList* parentList = m_parentStyle->transitions(); \
size_t i = 0, parentSize = parentList ? parentList->size() : 0; \
for ( ; i < parentSize && parentList->animation(i)->is##Prop##Set(); ++i) { \
if (list->size() <= i) \
list->append(Animation::create()); \
list->animation(i)->set##Prop(parentList->animation(i)->prop()); \
} \
\
/* Reset any remaining transitions to not have the property set. */ \
for ( ; i < list->size(); ++i) \
list->animation(i)->clear##Prop(); \
} else if (isInitial) { \
AnimationList* list = m_style->accessTransitions(); \
if (list->isEmpty()) \
list->append(Animation::create()); \
list->animation(0)->set##Prop(Animation::initialAnimation##Prop()); \
for (size_t i = 1; i < list->size(); ++i) \
list->animation(0)->clear##Prop(); \
}
#define HANDLE_TRANSITION_VALUE(prop, Prop, value) { \
HANDLE_TRANSITION_INHERIT_AND_INITIAL(prop, Prop) \
if (isInherit || isInitial) \
return; \
AnimationList* list = m_style->accessTransitions(); \
size_t childIndex = 0; \
if (value->isValueList()) { \
/* Walk each value and put it into a transition, creating new animations as needed. */ \
CSSValueList* valueList = static_cast<CSSValueList*>(value); \
for (unsigned int i = 0; i < valueList->length(); i++) { \
if (childIndex <= list->size()) \
list->append(Animation::create()); \
mapAnimation##Prop(list->animation(childIndex), valueList->itemWithoutBoundsCheck(i)); \
++childIndex; \
} \
} else { \
if (list->isEmpty()) \
list->append(Animation::create()); \
mapAnimation##Prop(list->animation(childIndex), value); \
childIndex = 1; \
} \
for ( ; childIndex < list->size(); ++childIndex) { \
/* Reset all remaining transitions to not have the property set. */ \
list->animation(childIndex)->clear##Prop(); \
} \
}
#define HANDLE_INHERIT_COND(propID, prop, Prop) \
if (id == propID) { \
m_style->set##Prop(m_parentStyle->prop()); \
return; \
}
#define HANDLE_INHERIT_COND_WITH_BACKUP(propID, prop, propAlt, Prop) \
if (id == propID) { \
if (m_parentStyle->prop().isValid()) \
m_style->set##Prop(m_parentStyle->prop()); \
else \
m_style->set##Prop(m_parentStyle->propAlt()); \
return; \
}
#define HANDLE_INITIAL_COND(propID, Prop) \
if (id == propID) { \
m_style->set##Prop(RenderStyle::initial##Prop()); \
return; \
}
#define HANDLE_INITIAL_COND_WITH_VALUE(propID, Prop, Value) \
if (id == propID) { \
m_style->set##Prop(RenderStyle::initial##Value()); \
return; \
}
class RuleData {
public:
RuleData(CSSStyleRule*, CSSSelector*, unsigned position);
unsigned position() const { return m_position; }
CSSStyleRule* rule() const { return m_rule; }
CSSSelector* selector() const { return m_selector; }
bool hasFastCheckableSelector() const { return m_hasFastCheckableSelector; }
bool hasMultipartSelector() const { return m_hasMultipartSelector; }
bool hasTopSelectorMatchingHTMLBasedOnRuleHash() const { return m_hasTopSelectorMatchingHTMLBasedOnRuleHash; }
unsigned specificity() const { return m_specificity; }
// Try to balance between memory usage (there can be lots of RuleData objects) and good filtering performance.
static const unsigned maximumIdentifierCount = 4;
const unsigned* descendantSelectorIdentifierHashes() const { return m_descendantSelectorIdentifierHashes; }
private:
void collectDescendantSelectorIdentifierHashes();
void collectIdentifierHashes(const CSSSelector*, unsigned& identifierCount);
CSSStyleRule* m_rule;
CSSSelector* m_selector;
unsigned m_specificity;
unsigned m_position : 29;
bool m_hasFastCheckableSelector : 1;
bool m_hasMultipartSelector : 1;
bool m_hasTopSelectorMatchingHTMLBasedOnRuleHash : 1;
// Use plain array instead of a Vector to minimize memory overhead.
unsigned m_descendantSelectorIdentifierHashes[maximumIdentifierCount];
};
class RuleSet {
WTF_MAKE_NONCOPYABLE(RuleSet);
public:
RuleSet();
~RuleSet();
typedef HashMap<AtomicStringImpl*, Vector<RuleData>*> AtomRuleMap;
void addRulesFromSheet(CSSStyleSheet*, const MediaQueryEvaluator&, CSSStyleSelector* = 0);
void addStyleRule(CSSStyleRule* item);
void addRule(CSSStyleRule* rule, CSSSelector* sel);
void addPageRule(CSSStyleRule* rule, CSSSelector* sel);
void addToRuleSet(AtomicStringImpl* key, AtomRuleMap& map,
CSSStyleRule* rule, CSSSelector* sel);
void shrinkToFit();
void disableAutoShrinkToFit() { m_autoShrinkToFitEnabled = false; }
void collectFeatures(CSSStyleSelector::Features&) const;
const Vector<RuleData>* getIDRules(AtomicStringImpl* key) const { return m_idRules.get(key); }
const Vector<RuleData>* getClassRules(AtomicStringImpl* key) const { return m_classRules.get(key); }
const Vector<RuleData>* getTagRules(AtomicStringImpl* key) const { return m_tagRules.get(key); }
const Vector<RuleData>* getPseudoRules(AtomicStringImpl* key) const { return m_pseudoRules.get(key); }
const Vector<RuleData>* getUniversalRules() const { return &m_universalRules; }
const Vector<RuleData>* getPageRules() const { return &m_pageRules; }
public:
AtomRuleMap m_idRules;
AtomRuleMap m_classRules;
AtomRuleMap m_tagRules;
AtomRuleMap m_pseudoRules;
Vector<RuleData> m_universalRules;
Vector<RuleData> m_pageRules;
unsigned m_ruleCount;
bool m_autoShrinkToFitEnabled;
};
static RuleSet* defaultStyle;
static RuleSet* defaultQuirksStyle;
static RuleSet* defaultPrintStyle;
static RuleSet* defaultViewSourceStyle;
static CSSStyleSheet* simpleDefaultStyleSheet;
static RuleSet* siblingRulesInDefaultStyle;
RenderStyle* CSSStyleSelector::s_styleNotYetAvailable;
static void loadFullDefaultStyle();
static void loadSimpleDefaultStyle();
// FIXME: It would be nice to use some mechanism that guarantees this is in sync with the real UA stylesheet.
static const char* simpleUserAgentStyleSheet = "html,body,div{display:block}head{display:none}body{margin:8px}div:focus,span:focus{outline:auto 5px -webkit-focus-ring-color}a:-webkit-any-link{color:-webkit-link;text-decoration:underline}a:-webkit-any-link:active{color:-webkit-activelink}";
static inline bool elementCanUseSimpleDefaultStyle(Element* e)
{
return e->hasTagName(htmlTag) || e->hasTagName(headTag) || e->hasTagName(bodyTag) || e->hasTagName(divTag) || e->hasTagName(spanTag) || e->hasTagName(brTag) || e->hasTagName(aTag);
}
static inline void collectSiblingRulesInDefaultStyle()
{
CSSStyleSelector::Features features;
defaultStyle->collectFeatures(features);
ASSERT(features.idsInRules.isEmpty());
delete siblingRulesInDefaultStyle;
siblingRulesInDefaultStyle = features.siblingRules.leakPtr();
}
static inline void assertNoSiblingRulesInDefaultStyle()
{
#ifndef NDEBUG
if (siblingRulesInDefaultStyle)
return;
collectSiblingRulesInDefaultStyle();
ASSERT(!siblingRulesInDefaultStyle);
#endif
}
static const MediaQueryEvaluator& screenEval()
{
DEFINE_STATIC_LOCAL(const MediaQueryEvaluator, staticScreenEval, ("screen"));
return staticScreenEval;
}
static const MediaQueryEvaluator& printEval()
{
DEFINE_STATIC_LOCAL(const MediaQueryEvaluator, staticPrintEval, ("print"));
return staticPrintEval;
}
static CSSMutableStyleDeclaration* leftToRightDeclaration()
{
DEFINE_STATIC_LOCAL(RefPtr<CSSMutableStyleDeclaration>, leftToRightDecl, (CSSMutableStyleDeclaration::create()));
if (!leftToRightDecl->length()) {
leftToRightDecl->setProperty(CSSPropertyDirection, "ltr", false, false);
leftToRightDecl->setStrictParsing(false);
}
return leftToRightDecl.get();
}
static CSSMutableStyleDeclaration* rightToLeftDeclaration()
{
DEFINE_STATIC_LOCAL(RefPtr<CSSMutableStyleDeclaration>, rightToLeftDecl, (CSSMutableStyleDeclaration::create()));
if (!rightToLeftDecl->length()) {
rightToLeftDecl->setProperty(CSSPropertyDirection, "rtl", false, false);
rightToLeftDecl->setStrictParsing(false);
}
return rightToLeftDecl.get();
}
CSSStyleSelector::CSSStyleSelector(Document* document, StyleSheetList* styleSheets, CSSStyleSheet* mappedElementSheet,
CSSStyleSheet* pageUserSheet, const Vector<RefPtr<CSSStyleSheet> >* pageGroupUserSheets,
bool strictParsing, bool matchAuthorAndUserStyles)
: m_backgroundData(BackgroundFillLayer)
, m_checker(document, strictParsing)
, m_element(0)
, m_styledElement(0)
, m_elementLinkState(NotInsideLink)
, m_fontSelector(CSSFontSelector::create(document))
, m_applyProperty(CSSStyleApplyProperty::sharedCSSStyleApplyProperty())
{
m_matchAuthorAndUserStyles = matchAuthorAndUserStyles;
Element* root = document->documentElement();
if (!defaultStyle) {
if (!root || elementCanUseSimpleDefaultStyle(root))
loadSimpleDefaultStyle();
else {
loadFullDefaultStyle();
}
}
// construct document root element default style. this is needed
// to evaluate media queries that contain relative constraints, like "screen and (max-width: 10em)"
// This is here instead of constructor, because when constructor is run,
// document doesn't have documentElement
// NOTE: this assumes that element that gets passed to styleForElement -call
// is always from the document that owns the style selector
FrameView* view = document->view();
if (view)
m_medium = adoptPtr(new MediaQueryEvaluator(view->mediaType()));
else
m_medium = adoptPtr(new MediaQueryEvaluator("all"));
if (root)
m_rootDefaultStyle = styleForElement(root, 0, false, true); // don't ref, because the RenderStyle is allocated from global heap
if (m_rootDefaultStyle && view)
m_medium = adoptPtr(new MediaQueryEvaluator(view->mediaType(), view->frame(), m_rootDefaultStyle.get()));
m_authorStyle = adoptPtr(new RuleSet);
// Adding rules from multiple sheets, shrink at the end.
m_authorStyle->disableAutoShrinkToFit();
// FIXME: This sucks! The user sheet is reparsed every time!
OwnPtr<RuleSet> tempUserStyle = adoptPtr(new RuleSet);
if (pageUserSheet)
tempUserStyle->addRulesFromSheet(pageUserSheet, *m_medium, this);
if (pageGroupUserSheets) {
unsigned length = pageGroupUserSheets->size();
for (unsigned i = 0; i < length; i++) {
if (pageGroupUserSheets->at(i)->isUserStyleSheet())
tempUserStyle->addRulesFromSheet(pageGroupUserSheets->at(i).get(), *m_medium, this);
else
m_authorStyle->addRulesFromSheet(pageGroupUserSheets->at(i).get(), *m_medium, this);
}
}
if (tempUserStyle->m_ruleCount > 0 || tempUserStyle->m_pageRules.size() > 0)
m_userStyle = tempUserStyle.release();
// Add rules from elements like SVG's <font-face>
if (mappedElementSheet)
m_authorStyle->addRulesFromSheet(mappedElementSheet, *m_medium, this);
// add stylesheets from document
unsigned length = styleSheets->length();
for (unsigned i = 0; i < length; i++) {
StyleSheet* sheet = styleSheets->item(i);
if (sheet->isCSSStyleSheet() && !sheet->disabled())
m_authorStyle->addRulesFromSheet(static_cast<CSSStyleSheet*>(sheet), *m_medium, this);
}
// Collect all ids and rules using sibling selectors (:first-child and similar)
// in the current set of stylesheets. Style sharing code uses this information to reject
// sharing candidates.
// Usually there are no sibling rules in the default style but the MathML sheet has some.
if (siblingRulesInDefaultStyle)
siblingRulesInDefaultStyle->collectFeatures(m_features);
m_authorStyle->collectFeatures(m_features);
if (m_userStyle)
m_userStyle->collectFeatures(m_features);
m_authorStyle->shrinkToFit();
if (m_features.siblingRules)
m_features.siblingRules->shrinkToFit();
if (document->renderer() && document->renderer()->style())
document->renderer()->style()->font().update(fontSelector());
}
// This is a simplified style setting function for keyframe styles
void CSSStyleSelector::addKeyframeStyle(PassRefPtr<WebKitCSSKeyframesRule> rule)
{
AtomicString s(rule->name());
m_keyframesRuleMap.add(s.impl(), rule);
}
CSSStyleSelector::~CSSStyleSelector()
{
m_fontSelector->clearDocument();
deleteAllValues(m_viewportDependentMediaQueryResults);
}
CSSStyleSelector::Features::Features()
: usesFirstLineRules(false)
, usesBeforeAfterRules(false)
, usesLinkRules(false)
{
}
CSSStyleSelector::Features::~Features()
{
}
static CSSStyleSheet* parseUASheet(const String& str)
{
CSSStyleSheet* sheet = CSSStyleSheet::create().releaseRef(); // leak the sheet on purpose
sheet->parseString(str);
return sheet;
}
static CSSStyleSheet* parseUASheet(const char* characters, unsigned size)
{
return parseUASheet(String(characters, size));
}
static void loadFullDefaultStyle()
{
if (simpleDefaultStyleSheet) {
ASSERT(defaultStyle);
delete defaultStyle;
simpleDefaultStyleSheet->deref();
defaultStyle = new RuleSet;
simpleDefaultStyleSheet = 0;
} else {
ASSERT(!defaultStyle);
defaultStyle = new RuleSet;
defaultPrintStyle = new RuleSet;
defaultQuirksStyle = new RuleSet;
}
// Strict-mode rules.
String defaultRules = String(htmlUserAgentStyleSheet, sizeof(htmlUserAgentStyleSheet)) + RenderTheme::defaultTheme()->extraDefaultStyleSheet();
CSSStyleSheet* defaultSheet = parseUASheet(defaultRules);
defaultStyle->addRulesFromSheet(defaultSheet, screenEval());
defaultPrintStyle->addRulesFromSheet(defaultSheet, printEval());
// Quirks-mode rules.
String quirksRules = String(quirksUserAgentStyleSheet, sizeof(quirksUserAgentStyleSheet)) + RenderTheme::defaultTheme()->extraQuirksStyleSheet();
CSSStyleSheet* quirksSheet = parseUASheet(quirksRules);
defaultQuirksStyle->addRulesFromSheet(quirksSheet, screenEval());
}
static void loadSimpleDefaultStyle()
{
ASSERT(!defaultStyle);
ASSERT(!simpleDefaultStyleSheet);
defaultStyle = new RuleSet;
defaultPrintStyle = new RuleSet;
defaultQuirksStyle = new RuleSet;
simpleDefaultStyleSheet = parseUASheet(simpleUserAgentStyleSheet, strlen(simpleUserAgentStyleSheet));
defaultStyle->addRulesFromSheet(simpleDefaultStyleSheet, screenEval());
// No need to initialize quirks sheet yet as there are no quirk rules for elements allowed in simple default style.
}
static void loadViewSourceStyle()
{
ASSERT(!defaultViewSourceStyle);
defaultViewSourceStyle = new RuleSet;
defaultViewSourceStyle->addRulesFromSheet(parseUASheet(sourceUserAgentStyleSheet, sizeof(sourceUserAgentStyleSheet)), screenEval());
}
static inline void collectElementIdentifierHashes(const Element* element, Vector<unsigned, 4>& identifierHashes)
{
identifierHashes.append(element->localName().impl()->existingHash());
if (element->hasID())
identifierHashes.append(element->idForStyleResolution().impl()->existingHash());
const StyledElement* styledElement = element->isStyledElement() ? static_cast<const StyledElement*>(element) : 0;
if (styledElement && styledElement->hasClass()) {
const SpaceSplitString& classNames = styledElement->classNames();
size_t count = classNames.size();
for (size_t i = 0; i < count; ++i)
identifierHashes.append(classNames[i].impl()->existingHash());
}
}
void CSSStyleSelector::pushParentStackFrame(Element* parent)
{
ASSERT(m_ancestorIdentifierFilter);
ASSERT(m_parentStack.isEmpty() || m_parentStack.last().element == parent->parentElement());
ASSERT(!m_parentStack.isEmpty() || !parent->parentElement());
m_parentStack.append(ParentStackFrame(parent));
ParentStackFrame& parentFrame = m_parentStack.last();
// Mix tags, class names and ids into some sort of weird bouillabaisse.
// The filter is used for fast rejection of child and descendant selectors.
collectElementIdentifierHashes(parent, parentFrame.identifierHashes);
size_t count = parentFrame.identifierHashes.size();
for (size_t i = 0; i < count; ++i)
m_ancestorIdentifierFilter->add(parentFrame.identifierHashes[i]);
}
void CSSStyleSelector::popParentStackFrame()
{
ASSERT(!m_parentStack.isEmpty());
ASSERT(m_ancestorIdentifierFilter);
const ParentStackFrame& parentFrame = m_parentStack.last();
size_t count = parentFrame.identifierHashes.size();
for (size_t i = 0; i < count; ++i)
m_ancestorIdentifierFilter->remove(parentFrame.identifierHashes[i]);
m_parentStack.removeLast();
if (m_parentStack.isEmpty()) {
ASSERT(m_ancestorIdentifierFilter->likelyEmpty());
m_ancestorIdentifierFilter.clear();
}
}
void CSSStyleSelector::pushParent(Element* parent)
{
if (m_parentStack.isEmpty()) {
ASSERT(!m_ancestorIdentifierFilter);
m_ancestorIdentifierFilter = adoptPtr(new BloomFilter<bloomFilterKeyBits>);
// If the element is not the root itself, build the stack starting from the root.
if (parent->parentElement()) {
Vector<Element*, 30> ancestors;
for (Element* ancestor = parent; ancestor; ancestor = ancestor->parentElement())
ancestors.append(ancestor);
int count = ancestors.size();
for (int n = count - 1; n >= 0; --n)
pushParentStackFrame(ancestors[n]);
return;
}
} else if (!parent->parentElement()) {
// We are not always invoked consistently. For example, script execution can cause us to enter
// style recalc in the middle of tree building. Reset the stack if we see a new root element.
ASSERT(m_ancestorIdentifierFilter);
m_ancestorIdentifierFilter->clear();
m_parentStack.resize(0);
} else {
ASSERT(m_ancestorIdentifierFilter);
// We may get invoked for some random elements in some wacky cases during style resolve.
// Pause maintaining the stack in this case.
if (m_parentStack.last().element != parent->parentElement())
return;
}
pushParentStackFrame(parent);
}
void CSSStyleSelector::popParent(Element* parent)
{
if (m_parentStack.isEmpty() || m_parentStack.last().element != parent)
return;
popParentStackFrame();
}
void CSSStyleSelector::addMatchedDeclaration(CSSMutableStyleDeclaration* decl)
{
m_matchedDecls.append(decl);
}
void CSSStyleSelector::matchRules(RuleSet* rules, int& firstRuleIndex, int& lastRuleIndex, bool includeEmptyRules)
{
m_matchedRules.clear();
if (!rules || !m_element)
return;
// We need to collect the rules for id, class, tag, and everything else into a buffer and
// then sort the buffer.
if (m_element->hasID())
matchRulesForList(rules->getIDRules(m_element->idForStyleResolution().impl()), firstRuleIndex, lastRuleIndex, includeEmptyRules);
if (m_element->hasClass()) {
ASSERT(m_styledElement);
const SpaceSplitString& classNames = m_styledElement->classNames();
size_t size = classNames.size();
for (size_t i = 0; i < size; ++i)
matchRulesForList(rules->getClassRules(classNames[i].impl()), firstRuleIndex, lastRuleIndex, includeEmptyRules);
}
if (!m_element->shadowPseudoId().isEmpty()) {
ASSERT(m_styledElement);
matchRulesForList(rules->getPseudoRules(m_element->shadowPseudoId().impl()), firstRuleIndex, lastRuleIndex, includeEmptyRules);
}
matchRulesForList(rules->getTagRules(m_element->localName().impl()), firstRuleIndex, lastRuleIndex, includeEmptyRules);
matchRulesForList(rules->getUniversalRules(), firstRuleIndex, lastRuleIndex, includeEmptyRules);
// If we didn't match any rules, we're done.
if (m_matchedRules.isEmpty())
return;
// Sort the set of matched rules.
sortMatchedRules();
// Now transfer the set of matched rules over to our list of decls.
if (!m_checker.m_collectRulesOnly) {
for (unsigned i = 0; i < m_matchedRules.size(); i++)
addMatchedDeclaration(m_matchedRules[i]->rule()->declaration());
} else {
for (unsigned i = 0; i < m_matchedRules.size(); i++) {
if (!m_ruleList)
m_ruleList = CSSRuleList::create();
m_ruleList->append(m_matchedRules[i]->rule());
}
}
}
inline bool CSSStyleSelector::fastRejectSelector(const RuleData& ruleData) const
{
ASSERT(m_ancestorIdentifierFilter);
const unsigned* descendantSelectorIdentifierHashes = ruleData.descendantSelectorIdentifierHashes();
for (unsigned n = 0; n < RuleData::maximumIdentifierCount && descendantSelectorIdentifierHashes[n]; ++n) {
if (!m_ancestorIdentifierFilter->mayContain(descendantSelectorIdentifierHashes[n]))
return true;
}
return false;
}
void CSSStyleSelector::matchRulesForList(const Vector<RuleData>* rules, int& firstRuleIndex, int& lastRuleIndex, bool includeEmptyRules)
{
if (!rules)
return;
// In some cases we may end up looking up style for random elements in the middle of a recursive tree resolve.
// Ancestor identifier filter won't be up-to-date in that case and we can't use the fast path.
bool canUseFastReject = !m_parentStack.isEmpty() && m_parentStack.last().element == m_parentNode;
unsigned size = rules->size();
for (unsigned i = 0; i < size; ++i) {
const RuleData& ruleData = rules->at(i);
if (canUseFastReject && fastRejectSelector(ruleData))
continue;
if (checkSelector(ruleData)) {
// If the rule has no properties to apply, then ignore it in the non-debug mode.
CSSStyleRule* rule = ruleData.rule();
CSSMutableStyleDeclaration* decl = rule->declaration();
if (!decl || (!decl->length() && !includeEmptyRules))
continue;
if (m_checker.m_sameOriginOnly && !m_checker.m_document->securityOrigin()->canRequest(rule->baseURL()))
continue;
// If we're matching normal rules, set a pseudo bit if
// we really just matched a pseudo-element.
if (m_dynamicPseudo != NOPSEUDO && m_checker.m_pseudoStyle == NOPSEUDO) {
if (m_checker.m_collectRulesOnly)
continue;
if (m_dynamicPseudo < FIRST_INTERNAL_PSEUDOID)
m_style->setHasPseudoStyle(m_dynamicPseudo);
} else {
// Update our first/last rule indices in the matched rules array.
lastRuleIndex = m_matchedDecls.size() + m_matchedRules.size();
if (firstRuleIndex == -1)
firstRuleIndex = lastRuleIndex;
// Add this rule to our list of matched rules.
addMatchedRule(&ruleData);
}
}
}
}
static inline bool compareRules(const RuleData* r1, const RuleData* r2)
{
unsigned specificity1 = r1->specificity();
unsigned specificity2 = r2->specificity();
return (specificity1 == specificity2) ? r1->position() < r2->position() : specificity1 < specificity2;
}
void CSSStyleSelector::sortMatchedRules()
{
std::sort(m_matchedRules.begin(), m_matchedRules.end(), compareRules);
}
inline EInsideLink CSSStyleSelector::SelectorChecker::determineLinkState(Element* element) const
{
if (!element || !element->isLink())
return NotInsideLink;
return determineLinkStateSlowCase(element);
}
inline void CSSStyleSelector::initElement(Element* e)
{
if (m_element != e) {
m_element = e;
m_styledElement = m_element && m_element->isStyledElement() ? static_cast<StyledElement*>(m_element) : 0;
m_elementLinkState = m_checker.determineLinkState(m_element);
if (e && e == e->document()->documentElement()) {
e->document()->setDirectionSetOnDocumentElement(false);
e->document()->setWritingModeSetOnDocumentElement(false);
}
}
}
inline void CSSStyleSelector::initForStyleResolve(Element* e, RenderStyle* parentStyle, PseudoId pseudoID)
{
m_checker.m_pseudoStyle = pseudoID;
m_parentNode = e ? e->parentNodeForRenderingAndStyle() : 0;
if (parentStyle)
m_parentStyle = parentStyle;
else
m_parentStyle = m_parentNode ? m_parentNode->renderStyle() : 0;
Node* docElement = e ? e->document()->documentElement() : 0;
RenderStyle* docStyle = m_checker.m_document->renderStyle();
m_rootElementStyle = docElement && e != docElement ? docElement->renderStyle() : docStyle;
m_style = 0;
m_matchedDecls.clear();
m_pendingImageProperties.clear();
m_ruleList = 0;
m_fontDirty = false;
}
static inline const AtomicString* linkAttribute(Node* node)
{
if (!node->isLink())
return 0;
ASSERT(node->isElementNode());
Element* element = static_cast<Element*>(node);
if (element->isHTMLElement())
return &element->fastGetAttribute(hrefAttr);
#if ENABLE(WML)
if (element->isWMLElement()) {
// <anchor> elements don't have href attributes, but we still want to
// appear as link, so linkAttribute() has to return a non-null value!
if (element->hasTagName(WMLNames::anchorTag))
return &emptyAtom;
return &element->fastGetAttribute(hrefAttr);
}
#endif
#if ENABLE(SVG)
if (element->isSVGElement())
return &element->fastGetAttribute(XLinkNames::hrefAttr);
#endif
return 0;
}
CSSStyleSelector::SelectorChecker::SelectorChecker(Document* document, bool strictParsing)
: m_document(document)
, m_strictParsing(strictParsing)
, m_collectRulesOnly(false)
, m_sameOriginOnly(false)
, m_pseudoStyle(NOPSEUDO)
, m_documentIsHTML(document->isHTMLDocument())
, m_matchVisitedPseudoClass(false)
{
}
EInsideLink CSSStyleSelector::SelectorChecker::determineLinkStateSlowCase(Element* element) const
{
ASSERT(element->isLink());
const AtomicString* attr = linkAttribute(element);
if (!attr || attr->isNull())
return NotInsideLink;
#if PLATFORM(QT)
Vector<UChar, 512> url;
visitedURL(m_document->baseURL(), *attr, url);
if (url.isEmpty())
return InsideUnvisitedLink;
// If the Qt4.4 interface for the history is used, we will have to fallback
// to the old global history.
QWebHistoryInterface* iface = QWebHistoryInterface::defaultInterface();
if (iface)
return iface->historyContains(QString(reinterpret_cast<QChar*>(url.data()), url.size())) ? InsideVisitedLink : InsideUnvisitedLink;
LinkHash hash = visitedLinkHash(url.data(), url.size());
if (!hash)
return InsideUnvisitedLink;
#else
LinkHash hash = visitedLinkHash(m_document->baseURL(), *attr);
if (!hash)
return InsideUnvisitedLink;
#endif
Frame* frame = m_document->frame();
if (!frame)
return InsideUnvisitedLink;
Page* page = frame->page();
if (!page)
return InsideUnvisitedLink;
m_linksCheckedForVisitedState.add(hash);
#if USE(PLATFORM_STRATEGIES)
return platformStrategies()->visitedLinkStrategy()->isLinkVisited(page, hash) ? InsideVisitedLink : InsideUnvisitedLink;
#else
return page->group().isLinkVisited(hash) ? InsideVisitedLink : InsideUnvisitedLink;
#endif
}
bool CSSStyleSelector::SelectorChecker::checkSelector(CSSSelector* sel, Element* element) const
{
PseudoId dynamicPseudo = NOPSEUDO;
return checkSelector(sel, element, 0, dynamicPseudo, false, false) == SelectorMatches;
}
static const unsigned cStyleSearchThreshold = 10;
static const unsigned cStyleSearchLevelThreshold = 10;
Node* CSSStyleSelector::locateCousinList(Element* parent, unsigned& visitedNodeCount) const
{
if (visitedNodeCount >= cStyleSearchThreshold * cStyleSearchLevelThreshold)
return 0;
if (!parent || !parent->isStyledElement())
return 0;
StyledElement* p = static_cast<StyledElement*>(parent);
if (p->inlineStyleDecl())
return 0;
if (p->hasID() && m_features.idsInRules.contains(p->idForStyleResolution().impl()))
return 0;
RenderStyle* parentStyle = p->renderStyle();
unsigned subcount = 0;
Node* thisCousin = p;
Node* currentNode = p->previousSibling();
// Reserve the tries for this level. This effectively makes sure that the algorithm
// will never go deeper than cStyleSearchLevelThreshold levels into recursion.
visitedNodeCount += cStyleSearchThreshold;
while (thisCousin) {
while (currentNode) {
++subcount;
if (currentNode->renderStyle() == parentStyle && currentNode->lastChild()) {
// Adjust for unused reserved tries.
visitedNodeCount -= cStyleSearchThreshold - subcount;
return currentNode->lastChild();
}
if (subcount >= cStyleSearchThreshold)
return 0;
currentNode = currentNode->previousSibling();
}
currentNode = locateCousinList(thisCousin->parentElement(), visitedNodeCount);
thisCousin = currentNode;
}
return 0;
}
bool CSSStyleSelector::matchesSiblingRules()
{
int firstSiblingRule = -1, lastSiblingRule = -1;
matchRules(m_features.siblingRules.get(), firstSiblingRule, lastSiblingRule, false);
if (m_matchedDecls.isEmpty())
return false;
m_matchedDecls.clear();
return true;
}
bool CSSStyleSelector::canShareStyleWithElement(Node* node) const
{
if (!node->isStyledElement())
return false;
StyledElement* element = static_cast<StyledElement*>(node);
RenderStyle* style = element->renderStyle();
if (!style)
return false;
if (style->unique())
return false;
if (element->tagQName() != m_element->tagQName())
return false;
if (element->hasClass() != m_element->hasClass())
return false;
if (element->inlineStyleDecl())
return false;
if (element->hasMappedAttributes() != m_styledElement->hasMappedAttributes())
return false;
if (element->isLink() != m_element->isLink())
return false;
if (style->affectedByAttributeSelectors())
return false;
if (element->hovered() != m_element->hovered())
return false;
if (element->active() != m_element->active())
return false;
if (element->focused() != m_element->focused())
return false;
if (element->shadowPseudoId() != m_element->shadowPseudoId())
return false;
if (element == element->document()->cssTarget())
return false;
if (m_element == m_element->document()->cssTarget())
return false;
if (element->fastGetAttribute(typeAttr) != m_element->fastGetAttribute(typeAttr))
return false;
if (element->fastGetAttribute(XMLNames::langAttr) != m_element->fastGetAttribute(XMLNames::langAttr))
return false;
if (element->fastGetAttribute(langAttr) != m_element->fastGetAttribute(langAttr))
return false;
if (element->fastGetAttribute(readonlyAttr) != m_element->fastGetAttribute(readonlyAttr))
return false;
if (element->fastGetAttribute(cellpaddingAttr) != m_element->fastGetAttribute(cellpaddingAttr))
return false;
if (element->hasID() && m_features.idsInRules.contains(element->idForStyleResolution().impl()))
return false;
bool isControl = element->isFormControlElement();
if (isControl != m_element->isFormControlElement())
return false;
if (isControl) {
InputElement* thisInputElement = element->toInputElement();
InputElement* otherInputElement = m_element->toInputElement();
if (!thisInputElement || !otherInputElement)
return false;
if (thisInputElement->isAutofilled() != otherInputElement->isAutofilled())
return false;
if (thisInputElement->isChecked() != otherInputElement->isChecked())
return false;
if (thisInputElement->isIndeterminate() != otherInputElement->isIndeterminate())
return false;
if (element->isEnabledFormControl() != m_element->isEnabledFormControl())
return false;
if (element->isDefaultButtonForForm() != m_element->isDefaultButtonForForm())
return false;
if (!m_element->document()->containsValidityStyleRules())
return false;
bool willValidate = element->willValidate();
if (willValidate != m_element->willValidate())
return false;
if (willValidate && (element->isValidFormControlElement() != m_element->isValidFormControlElement()))
return false;
if (element->isInRange() != m_element->isInRange())
return false;
if (element->isOutOfRange() != m_element->isOutOfRange())
return false;
}
if (style->transitions() || style->animations())
return false;
#if USE(ACCELERATED_COMPOSITING)
// Turn off style sharing for elements that can gain layers for reasons outside of the style system.
// See comments in RenderObject::setStyle().
if (element->hasTagName(iframeTag) || element->hasTagName(frameTag) || element->hasTagName(embedTag) || element->hasTagName(objectTag) || element->hasTagName(appletTag))
return false;
#endif
if (equalIgnoringCase(element->fastGetAttribute(dirAttr), "auto") || equalIgnoringCase(m_element->fastGetAttribute(dirAttr), "auto"))
return false;
if (element->hasClass() && m_element->fastGetAttribute(classAttr) != element->fastGetAttribute(classAttr))
return false;
if (element->hasMappedAttributes() && !element->attributeMap()->mappedMapsEquivalent(m_styledElement->attributeMap()))
return false;
if (element->isLink() && m_elementLinkState != style->insideLink())
return false;
return true;
}
inline Node* CSSStyleSelector::findSiblingForStyleSharing(Node* node, unsigned& count) const
{
for (; node; node = node->previousSibling()) {
if (!node->isElementNode())
continue;
if (canShareStyleWithElement(node))
break;
if (count++ == cStyleSearchThreshold)
return 0;
}
return node;
}
static inline bool parentStylePreventsSharing(const RenderStyle* parentStyle)
{
return parentStyle->childrenAffectedByPositionalRules()
|| parentStyle->childrenAffectedByFirstChildRules()
|| parentStyle->childrenAffectedByLastChildRules()
|| parentStyle->childrenAffectedByDirectAdjacentRules();
}
ALWAYS_INLINE RenderStyle* CSSStyleSelector::locateSharedStyle()
{
if (!m_styledElement || !m_parentStyle)
return 0;
// If the element has inline style it is probably unique.
if (m_styledElement->inlineStyleDecl())
return 0;
// Ids stop style sharing if they show up in the stylesheets.
if (m_styledElement->hasID() && m_features.idsInRules.contains(m_styledElement->idForStyleResolution().impl()))
return 0;
if (parentStylePreventsSharing(m_parentStyle))
return 0;
// Check previous siblings and their cousins.
unsigned count = 0;
unsigned visitedNodeCount = 0;
Node* shareNode = 0;
Node* cousinList = m_styledElement->previousSibling();
while (cousinList) {
shareNode = findSiblingForStyleSharing(cousinList, count);
if (shareNode)
break;
cousinList = locateCousinList(cousinList->parentElement(), visitedNodeCount);
}
// If we have exhausted all our budget or our cousins.
if (!shareNode)
return 0;
// Can't share if sibling rules apply. This is checked at the end as it should rarely fail.
if (matchesSiblingRules())
return 0;
// Tracking child index requires unique style for each node. This may get set by the sibling rule match above.
if (parentStylePreventsSharing(m_parentStyle))
return 0;
return shareNode->renderStyle();
}
void CSSStyleSelector::matchUARules(int& firstUARule, int& lastUARule)
{
// First we match rules from the user agent sheet.
RuleSet* userAgentStyleSheet = m_medium->mediaTypeMatchSpecific("print")
? defaultPrintStyle : defaultStyle;
matchRules(userAgentStyleSheet, firstUARule, lastUARule, false);
// In quirks mode, we match rules from the quirks user agent sheet.
if (!m_checker.m_strictParsing)
matchRules(defaultQuirksStyle, firstUARule, lastUARule, false);
// If document uses view source styles (in view source mode or in xml viewer mode), then we match rules from the view source style sheet.
if (m_checker.m_document->usesViewSourceStyles()) {
if (!defaultViewSourceStyle)
loadViewSourceStyle();
matchRules(defaultViewSourceStyle, firstUARule, lastUARule, false);
}
}
PassRefPtr<RenderStyle> CSSStyleSelector::styleForDocument(Document* document)
{
Frame* frame = document->frame();
RefPtr<RenderStyle> documentStyle = RenderStyle::create();
documentStyle->setDisplay(BLOCK);
documentStyle->setVisuallyOrdered(document->visuallyOrdered());
documentStyle->setZoom(frame ? frame->pageZoomFactor() : 1);
documentStyle->setPageScaleTransform(frame ? frame->pageScaleFactor() : 1);
documentStyle->setUserModify(document->inDesignMode() ? READ_WRITE : READ_ONLY);
Element* docElement = document->documentElement();
RenderObject* docElementRenderer = docElement ? docElement->renderer() : 0;
if (docElementRenderer) {
// Use the direction and writing-mode of the body to set the
// viewport's direction and writing-mode unless the property is set on the document element.
// If there is no body, then use the document element.
RenderObject* bodyRenderer = document->body() ? document->body()->renderer() : 0;
if (bodyRenderer && !document->writingModeSetOnDocumentElement())
documentStyle->setWritingMode(bodyRenderer->style()->writingMode());
else
documentStyle->setWritingMode(docElementRenderer->style()->writingMode());
if (bodyRenderer && !document->directionSetOnDocumentElement())
documentStyle->setDirection(bodyRenderer->style()->direction());
else
documentStyle->setDirection(docElementRenderer->style()->direction());
}
FontDescription fontDescription;
fontDescription.setUsePrinterFont(document->printing());
if (Settings* settings = document->settings()) {
fontDescription.setRenderingMode(settings->fontRenderingMode());
if (document->printing() && !settings->shouldPrintBackgrounds())
documentStyle->setForceBackgroundsToWhite(true);
const AtomicString& stdfont = settings->standardFontFamily();
if (!stdfont.isEmpty()) {
fontDescription.firstFamily().setFamily(stdfont);
fontDescription.firstFamily().appendFamily(0);
}
fontDescription.setKeywordSize(CSSValueMedium - CSSValueXxSmall + 1);
int size = CSSStyleSelector::fontSizeForKeyword(document, CSSValueMedium, false);
fontDescription.setSpecifiedSize(size);
bool useSVGZoomRules = document->isSVGDocument();
fontDescription.setComputedSize(CSSStyleSelector::getComputedSizeFromSpecifiedSize(document, documentStyle.get(), fontDescription.isAbsoluteSize(), size, useSVGZoomRules));
}
documentStyle->setFontDescription(fontDescription);
documentStyle->font().update(0);
return documentStyle.release();
}
// If resolveForRootDefault is true, style based on user agent style sheet only. This is used in media queries, where
// relative units are interpreted according to document root element style, styled only with UA stylesheet
PassRefPtr<RenderStyle> CSSStyleSelector::styleForElement(Element* e, RenderStyle* defaultParent, bool allowSharing, bool resolveForRootDefault, bool matchVisitedPseudoClass)
{
// Once an element has a renderer, we don't try to destroy it, since otherwise the renderer
// will vanish if a style recalc happens during loading.
if (allowSharing && !e->document()->haveStylesheetsLoaded() && !e->renderer()) {
if (!s_styleNotYetAvailable) {
s_styleNotYetAvailable = RenderStyle::create().releaseRef();
s_styleNotYetAvailable->ref();
s_styleNotYetAvailable->setDisplay(NONE);
s_styleNotYetAvailable->font().update(m_fontSelector);
}
s_styleNotYetAvailable->ref();
e->document()->setHasNodesWithPlaceholderStyle();
return s_styleNotYetAvailable;
}
initElement(e);
initForStyleResolve(e, defaultParent);
if (allowSharing) {
RenderStyle* sharedStyle = locateSharedStyle();
if (sharedStyle)
return sharedStyle;
}
// Compute our style allowing :visited to match first.
RefPtr<RenderStyle> visitedStyle;
if (!matchVisitedPseudoClass && m_parentStyle && (m_parentStyle->insideLink() || e->isLink()) && e->document()->usesLinkRules()) {
// Fetch our parent style.
RenderStyle* parentStyle = m_parentStyle;
if (!e->isLink()) {
// Use the parent's visited style if one exists.
RenderStyle* parentVisitedStyle = m_parentStyle->getCachedPseudoStyle(VISITED_LINK);
if (parentVisitedStyle)
parentStyle = parentVisitedStyle;
}
visitedStyle = styleForElement(e, parentStyle, false, false, true);
initForStyleResolve(e, defaultParent);
}
m_checker.m_matchVisitedPseudoClass = matchVisitedPseudoClass;
m_style = RenderStyle::create();
if (m_parentStyle)
m_style->inheritFrom(m_parentStyle);
else {
m_parentStyle = style();
// Make sure our fonts are initialized if we don't inherit them from our parent style.
m_style->font().update(0);
}
if (e->isLink()) {
m_style->setIsLink(true);
m_style->setInsideLink(m_elementLinkState);
}
if (visitedStyle) {
// Copy any pseudo bits that the visited style has to the primary style so that
// pseudo element styles will continue to work for pseudo elements inside :visited
// links.
for (unsigned pseudo = FIRST_PUBLIC_PSEUDOID; pseudo < FIRST_INTERNAL_PSEUDOID; ++pseudo) {
if (visitedStyle->hasPseudoStyle(static_cast<PseudoId>(pseudo)))
m_style->setHasPseudoStyle(static_cast<PseudoId>(pseudo));
}
if (m_elementLinkState == InsideUnvisitedLink)
visitedStyle = 0; // We made the style to avoid timing attacks. Just throw it away now that we did that, since we don't need it.
else
visitedStyle->setStyleType(VISITED_LINK);
}
if (simpleDefaultStyleSheet && !elementCanUseSimpleDefaultStyle(e)) {
loadFullDefaultStyle();
assertNoSiblingRulesInDefaultStyle();
}
#if ENABLE(SVG)
static bool loadedSVGUserAgentSheet;
if (e->isSVGElement() && !loadedSVGUserAgentSheet) {
// SVG rules.
loadedSVGUserAgentSheet = true;
CSSStyleSheet* svgSheet = parseUASheet(svgUserAgentStyleSheet, sizeof(svgUserAgentStyleSheet));
defaultStyle->addRulesFromSheet(svgSheet, screenEval());
defaultPrintStyle->addRulesFromSheet(svgSheet, printEval());
assertNoSiblingRulesInDefaultStyle();
}
#endif
#if ENABLE(MATHML)
static bool loadedMathMLUserAgentSheet;
if (e->isMathMLElement() && !loadedMathMLUserAgentSheet) {
// MathML rules.
loadedMathMLUserAgentSheet = true;
CSSStyleSheet* mathMLSheet = parseUASheet(mathmlUserAgentStyleSheet, sizeof(mathmlUserAgentStyleSheet));
defaultStyle->addRulesFromSheet(mathMLSheet, screenEval());
defaultPrintStyle->addRulesFromSheet(mathMLSheet, printEval());
// There are some sibling rules here.
collectSiblingRulesInDefaultStyle();
}
#endif
#if ENABLE(WML)
static bool loadedWMLUserAgentSheet;
if (e->isWMLElement() && !loadedWMLUserAgentSheet) {
// WML rules.
loadedWMLUserAgentSheet = true;
CSSStyleSheet* wmlSheet = parseUASheet(wmlUserAgentStyleSheet, sizeof(wmlUserAgentStyleSheet));
defaultStyle->addRulesFromSheet(wmlSheet, screenEval());
defaultPrintStyle->addRulesFromSheet(wmlSheet, printEval());
assertNoSiblingRulesInDefaultStyle();
}
#endif
#if ENABLE(VIDEO)
static bool loadedMediaStyleSheet;
if (!loadedMediaStyleSheet && (e->hasTagName(videoTag) || e->hasTagName(audioTag))) {
loadedMediaStyleSheet = true;
String mediaRules = String(mediaControlsUserAgentStyleSheet, sizeof(mediaControlsUserAgentStyleSheet)) + RenderTheme::themeForPage(e->document()->page())->extraMediaControlsStyleSheet();
CSSStyleSheet* mediaControlsSheet = parseUASheet(mediaRules);
defaultStyle->addRulesFromSheet(mediaControlsSheet, screenEval());
defaultPrintStyle->addRulesFromSheet(mediaControlsSheet, printEval());
assertNoSiblingRulesInDefaultStyle();
}
#endif
#if ENABLE(FULLSCREEN_API)
static bool loadedFullScreenStyleSheet;
if (!loadedFullScreenStyleSheet && e->document()->webkitIsFullScreen()) {
loadedFullScreenStyleSheet = true;
String fullscreenRules = String(fullscreenUserAgentStyleSheet, sizeof(fullscreenUserAgentStyleSheet)) + RenderTheme::defaultTheme()->extraFullScreenStyleSheet();
CSSStyleSheet* fullscreenSheet = parseUASheet(fullscreenRules);
defaultStyle->addRulesFromSheet(fullscreenSheet, screenEval());
defaultQuirksStyle->addRulesFromSheet(fullscreenSheet, screenEval());
}
#endif
int firstUARule = -1, lastUARule = -1;
int firstUserRule = -1, lastUserRule = -1;
int firstAuthorRule = -1, lastAuthorRule = -1;
matchUARules(firstUARule, lastUARule);
if (!resolveForRootDefault) {
// 4. Now we check user sheet rules.
if (m_matchAuthorAndUserStyles)
matchRules(m_userStyle.get(), firstUserRule, lastUserRule, false);
// 5. Now check author rules, beginning first with presentational attributes
// mapped from HTML.
if (m_styledElement) {
// Ask if the HTML element has mapped attributes.
if (m_styledElement->hasMappedAttributes()) {
// Walk our attribute list and add in each decl.
const NamedNodeMap* map = m_styledElement->attributeMap();
for (unsigned i = 0; i < map->length(); i++) {
Attribute* attr = map->attributeItem(i);
if (attr->isMappedAttribute() && attr->decl()) {
lastAuthorRule = m_matchedDecls.size();
if (firstAuthorRule == -1)
firstAuthorRule = lastAuthorRule;
addMatchedDeclaration(attr->decl());
}
}
}
// Now we check additional mapped declarations.
// Tables and table cells share an additional mapped rule that must be applied
// after all attributes, since their mapped style depends on the values of multiple attributes.
if (m_styledElement->canHaveAdditionalAttributeStyleDecls()) {
m_additionalAttributeStyleDecls.clear();
m_styledElement->additionalAttributeStyleDecls(m_additionalAttributeStyleDecls);
if (!m_additionalAttributeStyleDecls.isEmpty()) {
unsigned additionalDeclsSize = m_additionalAttributeStyleDecls.size();
if (firstAuthorRule == -1)
firstAuthorRule = m_matchedDecls.size();
lastAuthorRule = m_matchedDecls.size() + additionalDeclsSize - 1;
for (unsigned i = 0; i < additionalDeclsSize; i++)
addMatchedDeclaration(m_additionalAttributeStyleDecls[i]);
}
}
if (m_styledElement->isHTMLElement()) {
bool isAuto;
TextDirection textDirection = toHTMLElement(m_styledElement)->directionalityIfhasDirAutoAttribute(isAuto);
if (isAuto)
addMatchedDeclaration(textDirection == LTR ? leftToRightDeclaration() : rightToLeftDeclaration());
}
}
// 6. Check the rules in author sheets next.
if (m_matchAuthorAndUserStyles)
matchRules(m_authorStyle.get(), firstAuthorRule, lastAuthorRule, false);
// 7. Now check our inline style attribute.
if (m_matchAuthorAndUserStyles && m_styledElement) {
CSSMutableStyleDeclaration* inlineDecl = m_styledElement->inlineStyleDecl();
if (inlineDecl) {
lastAuthorRule = m_matchedDecls.size();
if (firstAuthorRule == -1)
firstAuthorRule = lastAuthorRule;
addMatchedDeclaration(inlineDecl);
}
}
}
// Reset the value back before applying properties, so that -webkit-link knows what color to use.
m_checker.m_matchVisitedPseudoClass = matchVisitedPseudoClass;
// Now we have all of the matched rules in the appropriate order. Walk the rules and apply
// high-priority properties first, i.e., those properties that other properties depend on.
// The order is (1) high-priority not important, (2) high-priority important, (3) normal not important
// and (4) normal important.
m_lineHeightValue = 0;
applyDeclarations<true>(false, 0, m_matchedDecls.size() - 1);
if (!resolveForRootDefault) {
applyDeclarations<true>(true, firstAuthorRule, lastAuthorRule);
applyDeclarations<true>(true, firstUserRule, lastUserRule);
}
applyDeclarations<true>(true, firstUARule, lastUARule);
// If our font got dirtied, go ahead and update it now.
if (m_fontDirty)
updateFont();
// Line-height is set when we are sure we decided on the font-size
if (m_lineHeightValue)
applyProperty(CSSPropertyLineHeight, m_lineHeightValue);
// Now do the normal priority UA properties.
applyDeclarations<false>(false, firstUARule, lastUARule);
// Cache our border and background so that we can examine them later.
cacheBorderAndBackground();
// Now do the author and user normal priority properties and all the !important properties.
if (!resolveForRootDefault) {
applyDeclarations<false>(false, lastUARule + 1, m_matchedDecls.size() - 1);
applyDeclarations<false>(true, firstAuthorRule, lastAuthorRule);
applyDeclarations<false>(true, firstUserRule, lastUserRule);
}
applyDeclarations<false>(true, firstUARule, lastUARule);
ASSERT(!m_fontDirty);
// If our font got dirtied by one of the non-essential font props,
// go ahead and update it a second time.
if (m_fontDirty)
updateFont();
// Clean up our style object's display and text decorations (among other fixups).
adjustRenderStyle(style(), m_parentStyle, e);
// Start loading images referenced by this style.
loadPendingImages();
// If we have first-letter pseudo style, do not share this style
if (m_style->hasPseudoStyle(FIRST_LETTER))
m_style->setUnique();
if (visitedStyle) {
// Add the visited style off the main style.
m_style->addCachedPseudoStyle(visitedStyle.release());
}
if (!matchVisitedPseudoClass)
initElement(0); // Clear out for the next resolve.
// Now return the style.
return m_style.release();
}
PassRefPtr<RenderStyle> CSSStyleSelector::styleForKeyframe(const RenderStyle* elementStyle, const WebKitCSSKeyframeRule* keyframeRule, KeyframeValue& keyframe)
{
if (keyframeRule->style())
addMatchedDeclaration(keyframeRule->style());
ASSERT(!m_style);
// Create the style
m_style = RenderStyle::clone(elementStyle);
m_lineHeightValue = 0;
// We don't need to bother with !important. Since there is only ever one
// decl, there's nothing to override. So just add the first properties.
if (keyframeRule->style())
applyDeclarations<true>(false, 0, m_matchedDecls.size() - 1);
// If our font got dirtied, go ahead and update it now.
if (m_fontDirty)
updateFont();
// Line-height is set when we are sure we decided on the font-size
if (m_lineHeightValue)
applyProperty(CSSPropertyLineHeight, m_lineHeightValue);
// Now do rest of the properties.
if (keyframeRule->style())
applyDeclarations<false>(false, 0, m_matchedDecls.size() - 1);
// If our font got dirtied by one of the non-essential font props,
// go ahead and update it a second time.
if (m_fontDirty)
updateFont();
// Start loading images referenced by this style.
loadPendingImages();
// Add all the animating properties to the keyframe.
if (keyframeRule->style()) {
CSSMutableStyleDeclaration::const_iterator end = keyframeRule->style()->end();
for (CSSMutableStyleDeclaration::const_iterator it = keyframeRule->style()->begin(); it != end; ++it) {
int property = (*it).id();
// Timing-function within keyframes is special, because it is not animated; it just
// describes the timing function between this keyframe and the next.
if (property != CSSPropertyWebkitAnimationTimingFunction)
keyframe.addProperty(property);
}
}
return m_style.release();
}
void CSSStyleSelector::keyframeStylesForAnimation(Element* e, const RenderStyle* elementStyle, KeyframeList& list)
{
list.clear();
// Get the keyframesRule for this name
if (!e || list.animationName().isEmpty())
return;
m_keyframesRuleMap.checkConsistency();
if (!m_keyframesRuleMap.contains(list.animationName().impl()))
return;
const WebKitCSSKeyframesRule* rule = m_keyframesRuleMap.find(list.animationName().impl()).get()->second.get();
// Construct and populate the style for each keyframe
for (unsigned i = 0; i < rule->length(); ++i) {
// Apply the declaration to the style. This is a simplified version of the logic in styleForElement
initElement(e);
initForStyleResolve(e);
const WebKitCSSKeyframeRule* keyframeRule = rule->item(i);
KeyframeValue keyframe(0, 0);
keyframe.setStyle(styleForKeyframe(elementStyle, keyframeRule, keyframe));
// Add this keyframe style to all the indicated key times
Vector<float> keys;
keyframeRule->getKeys(keys);
for (size_t keyIndex = 0; keyIndex < keys.size(); ++keyIndex) {
keyframe.setKey(keys[keyIndex]);
list.insert(keyframe);
}
}
// If the 0% keyframe is missing, create it (but only if there is at least one other keyframe)
int initialListSize = list.size();
if (initialListSize > 0 && list[0].key() != 0) {
RefPtr<WebKitCSSKeyframeRule> keyframeRule = WebKitCSSKeyframeRule::create();
keyframeRule->setKeyText("0%");
KeyframeValue keyframe(0, 0);
keyframe.setStyle(styleForKeyframe(elementStyle, keyframeRule.get(), keyframe));
list.insert(keyframe);
}
// If the 100% keyframe is missing, create it (but only if there is at least one other keyframe)
if (initialListSize > 0 && (list[list.size() - 1].key() != 1)) {
RefPtr<WebKitCSSKeyframeRule> keyframeRule = WebKitCSSKeyframeRule::create();
keyframeRule->setKeyText("100%");
KeyframeValue keyframe(1, 0);
keyframe.setStyle(styleForKeyframe(elementStyle, keyframeRule.get(), keyframe));
list.insert(keyframe);
}
}
PassRefPtr<RenderStyle> CSSStyleSelector::pseudoStyleForElement(PseudoId pseudo, Element* e, RenderStyle* parentStyle, bool matchVisitedPseudoClass)
{
if (!e)
return 0;
initElement(e);
// Compute our :visited style first, so that we know whether or not we'll need to create a normal style just to hang it
// off of.
RefPtr<RenderStyle> visitedStyle;
if (!matchVisitedPseudoClass && parentStyle && parentStyle->insideLink()) {
// Fetch our parent style with :visited in effect.
RenderStyle* parentVisitedStyle = parentStyle->getCachedPseudoStyle(VISITED_LINK);
visitedStyle = pseudoStyleForElement(pseudo, e, parentVisitedStyle ? parentVisitedStyle : parentStyle, true);
if (visitedStyle)
visitedStyle->setStyleType(VISITED_LINK);
}
initForStyleResolve(e, parentStyle, pseudo);
m_style = RenderStyle::create();
if (parentStyle)
m_style->inheritFrom(parentStyle);
m_checker.m_matchVisitedPseudoClass = matchVisitedPseudoClass;
// Since we don't use pseudo-elements in any of our quirk/print user agent rules, don't waste time walking
// those rules.
// Check UA, user and author rules.
int firstUARule = -1, lastUARule = -1, firstUserRule = -1, lastUserRule = -1, firstAuthorRule = -1, lastAuthorRule = -1;
matchUARules(firstUARule, lastUARule);
if (m_matchAuthorAndUserStyles) {
matchRules(m_userStyle.get(), firstUserRule, lastUserRule, false);
matchRules(m_authorStyle.get(), firstAuthorRule, lastAuthorRule, false);
}
if (m_matchedDecls.isEmpty() && !visitedStyle)
return 0;
m_style->setStyleType(pseudo);
m_lineHeightValue = 0;
// Reset the value back before applying properties, so that -webkit-link knows what color to use.
m_checker.m_matchVisitedPseudoClass = matchVisitedPseudoClass;
// High-priority properties.
applyDeclarations<true>(false, 0, m_matchedDecls.size() - 1);
applyDeclarations<true>(true, firstAuthorRule, lastAuthorRule);
applyDeclarations<true>(true, firstUserRule, lastUserRule);
applyDeclarations<true>(true, firstUARule, lastUARule);
// If our font got dirtied, go ahead and update it now.
if (m_fontDirty)
updateFont();
// Line-height is set when we are sure we decided on the font-size
if (m_lineHeightValue)
applyProperty(CSSPropertyLineHeight, m_lineHeightValue);
// Now do the normal priority properties.
applyDeclarations<false>(false, firstUARule, lastUARule);
// Cache our border and background so that we can examine them later.
cacheBorderAndBackground();
applyDeclarations<false>(false, lastUARule + 1, m_matchedDecls.size() - 1);
applyDeclarations<false>(true, firstAuthorRule, lastAuthorRule);
applyDeclarations<false>(true, firstUserRule, lastUserRule);
applyDeclarations<false>(true, firstUARule, lastUARule);
// If our font got dirtied by one of the non-essential font props,
// go ahead and update it a second time.
if (m_fontDirty)
updateFont();
// Clean up our style object's display and text decorations (among other fixups).
adjustRenderStyle(style(), parentStyle, 0);
// Start loading images referenced by this style.
loadPendingImages();
// Hang our visited style off m_style.
if (visitedStyle)
m_style->addCachedPseudoStyle(visitedStyle.release());
// Now return the style.
return m_style.release();
}
PassRefPtr<RenderStyle> CSSStyleSelector::styleForPage(int pageIndex)
{
initForStyleResolve(m_checker.m_document->documentElement()); // m_rootElementStyle will be set to the document style.
m_style = RenderStyle::create();
m_style->inheritFrom(m_rootElementStyle);
const bool isLeft = isLeftPage(pageIndex);
const bool isFirst = isFirstPage(pageIndex);
const String page = pageName(pageIndex);
matchPageRules(defaultPrintStyle, isLeft, isFirst, page);
matchPageRules(m_userStyle.get(), isLeft, isFirst, page);
matchPageRules(m_authorStyle.get(), isLeft, isFirst, page);
m_lineHeightValue = 0;
applyDeclarations<true>(false, 0, m_matchedDecls.size() - 1);
// If our font got dirtied, go ahead and update it now.
if (m_fontDirty)
updateFont();
// Line-height is set when we are sure we decided on the font-size
if (m_lineHeightValue)
applyProperty(CSSPropertyLineHeight, m_lineHeightValue);
applyDeclarations<false>(false, 0, m_matchedDecls.size() - 1);
// Start loading images referenced by this style.
loadPendingImages();
// Now return the style.
return m_style.release();
}
#if ENABLE(DATAGRID)
PassRefPtr<RenderStyle> CSSStyleSelector::pseudoStyleForDataGridColumn(DataGridColumn*, RenderStyle*)
{
// FIXME: Implement
return 0;
}
PassRefPtr<RenderStyle> CSSStyleSelector::pseudoStyleForDataGridColumnHeader(DataGridColumn*, RenderStyle*)
{
// FIXME: Implement
return 0;
}
#endif
static void addIntrinsicMargins(RenderStyle* style)
{
// Intrinsic margin value.
const int intrinsicMargin = 2 * style->effectiveZoom();
// FIXME: Using width/height alone and not also dealing with min-width/max-width is flawed.
// FIXME: Using "quirk" to decide the margin wasn't set is kind of lame.
if (style->width().isIntrinsicOrAuto()) {
if (style->marginLeft().quirk())
style->setMarginLeft(Length(intrinsicMargin, Fixed));
if (style->marginRight().quirk())
style->setMarginRight(Length(intrinsicMargin, Fixed));
}
if (style->height().isAuto()) {
if (style->marginTop().quirk())
style->setMarginTop(Length(intrinsicMargin, Fixed));
if (style->marginBottom().quirk())
style->setMarginBottom(Length(intrinsicMargin, Fixed));
}
}
static inline bool isAtShadowBoundary(Element* element)
{
if (!element)
return false;
ContainerNode* parentNode = element->parentNode();
return parentNode && parentNode->isShadowBoundary();
}
void CSSStyleSelector::adjustRenderStyle(RenderStyle* style, RenderStyle* parentStyle, Element *e)
{
// Cache our original display.
style->setOriginalDisplay(style->display());
if (style->display() != NONE) {
// If we have a <td> that specifies a float property, in quirks mode we just drop the float
// property.
// Sites also commonly use display:inline/block on <td>s and <table>s. In quirks mode we force
// these tags to retain their display types.
if (!m_checker.m_strictParsing && e) {
if (e->hasTagName(tdTag)) {
style->setDisplay(TABLE_CELL);
style->setFloating(FNONE);
}
else if (e->hasTagName(tableTag))
style->setDisplay(style->isDisplayInlineType() ? INLINE_TABLE : TABLE);
}
if (e && (e->hasTagName(tdTag) || e->hasTagName(thTag))) {
if (style->whiteSpace() == KHTML_NOWRAP) {
// Figure out if we are really nowrapping or if we should just
// use normal instead. If the width of the cell is fixed, then
// we don't actually use NOWRAP.
if (style->width().isFixed())
style->setWhiteSpace(NORMAL);
else
style->setWhiteSpace(NOWRAP);
}
}
// Tables never support the -webkit-* values for text-align and will reset back to the default.
if (e && e->hasTagName(tableTag) && (style->textAlign() == WEBKIT_LEFT || style->textAlign() == WEBKIT_CENTER || style->textAlign() == WEBKIT_RIGHT))
style->setTextAlign(TAAUTO);
// Frames and framesets never honor position:relative or position:absolute. This is necessary to
// fix a crash where a site tries to position these objects. They also never honor display.
if (e && (e->hasTagName(frameTag) || e->hasTagName(framesetTag))) {
style->setPosition(StaticPosition);
style->setDisplay(BLOCK);
}
// Table headers with a text-align of auto will change the text-align to center.
if (e && e->hasTagName(thTag) && style->textAlign() == TAAUTO)
style->setTextAlign(CENTER);
if (e && e->hasTagName(legendTag))
style->setDisplay(BLOCK);
// Mutate the display to BLOCK or TABLE for certain cases, e.g., if someone attempts to
// position or float an inline, compact, or run-in. Cache the original display, since it
// may be needed for positioned elements that have to compute their static normal flow
// positions. We also force inline-level roots to be block-level.
if (style->display() != BLOCK && style->display() != TABLE && style->display() != BOX &&
(style->position() == AbsolutePosition || style->position() == FixedPosition || style->floating() != FNONE ||
(e && e->document()->documentElement() == e))) {
if (style->display() == INLINE_TABLE)
style->setDisplay(TABLE);
else if (style->display() == INLINE_BOX)
style->setDisplay(BOX);
else if (style->display() == LIST_ITEM) {
// It is a WinIE bug that floated list items lose their bullets, so we'll emulate the quirk,
// but only in quirks mode.
if (!m_checker.m_strictParsing && style->floating() != FNONE)
style->setDisplay(BLOCK);
}
else
style->setDisplay(BLOCK);
}
// FIXME: Don't support this mutation for pseudo styles like first-letter or first-line, since it's not completely
// clear how that should work.
if (style->display() == INLINE && style->styleType() == NOPSEUDO && parentStyle && style->writingMode() != parentStyle->writingMode())
style->setDisplay(INLINE_BLOCK);
// After performing the display mutation, check table rows. We do not honor position:relative on
// table rows or cells. This has been established in CSS2.1 (and caused a crash in containingBlock()
// on some sites).
if ((style->display() == TABLE_HEADER_GROUP || style->display() == TABLE_ROW_GROUP
|| style->display() == TABLE_FOOTER_GROUP || style->display() == TABLE_ROW) &&
style->position() == RelativePosition)
style->setPosition(StaticPosition);
// writing-mode does not apply to table row groups, table column groups, table rows, and table columns.
// FIXME: Table cells should be allowed to be perpendicular or flipped with respect to the table, though.
if (style->display() == TABLE_COLUMN || style->display() == TABLE_COLUMN_GROUP || style->display() == TABLE_FOOTER_GROUP
|| style->display() == TABLE_HEADER_GROUP || style->display() == TABLE_ROW || style->display() == TABLE_ROW_GROUP
|| style->display() == TABLE_CELL)
style->setWritingMode(parentStyle->writingMode());
// FIXME: Since we don't support block-flow on flexible boxes yet, disallow setting
// of block-flow to anything other than TopToBottomWritingMode.
// https://bugs.webkit.org/show_bug.cgi?id=46418 - Flexible box support.
if (style->writingMode() != TopToBottomWritingMode && (style->display() == BOX || style->display() == INLINE_BOX))
style->setWritingMode(TopToBottomWritingMode);
}
// Make sure our z-index value is only applied if the object is positioned.
if (style->position() == StaticPosition)
style->setHasAutoZIndex();
// Auto z-index becomes 0 for the root element and transparent objects. This prevents
// cases where objects that should be blended as a single unit end up with a non-transparent
// object wedged in between them. Auto z-index also becomes 0 for objects that specify transforms/masks/reflections.
if (style->hasAutoZIndex() && ((e && e->document()->documentElement() == e) || style->opacity() < 1.0f ||
style->hasTransformRelatedProperty() || style->hasMask() || style->boxReflect()))
style->setZIndex(0);
#if ENABLE(WML)
if (e && (e->hasTagName(WMLNames::insertedLegendTag)
|| e->hasTagName(WMLNames::inputTag))
&& style->width().isAuto())
style->setWidth(Length(Intrinsic));
#endif
// Textarea considers overflow visible as auto.
if (e && e->hasTagName(textareaTag)) {
style->setOverflowX(style->overflowX() == OVISIBLE ? OAUTO : style->overflowX());
style->setOverflowY(style->overflowY() == OVISIBLE ? OAUTO : style->overflowY());
}
// Finally update our text decorations in effect, but don't allow text-decoration to percolate through
// tables, inline blocks, inline tables, run-ins, or shadow DOM.
if (style->display() == TABLE || style->display() == INLINE_TABLE || style->display() == RUN_IN
|| style->display() == INLINE_BLOCK || style->display() == INLINE_BOX || isAtShadowBoundary(e))
style->setTextDecorationsInEffect(style->textDecoration());
else
style->addToTextDecorationsInEffect(style->textDecoration());
// If either overflow value is not visible, change to auto.
if (style->overflowX() == OMARQUEE && style->overflowY() != OMARQUEE)
style->setOverflowY(OMARQUEE);
else if (style->overflowY() == OMARQUEE && style->overflowX() != OMARQUEE)
style->setOverflowX(OMARQUEE);
else if (style->overflowX() == OVISIBLE && style->overflowY() != OVISIBLE)
style->setOverflowX(OAUTO);
else if (style->overflowY() == OVISIBLE && style->overflowX() != OVISIBLE)
style->setOverflowY(OAUTO);
// Table rows, sections and the table itself will support overflow:hidden and will ignore scroll/auto.
// FIXME: Eventually table sections will support auto and scroll.
if (style->display() == TABLE || style->display() == INLINE_TABLE ||
style->display() == TABLE_ROW_GROUP || style->display() == TABLE_ROW) {
if (style->overflowX() != OVISIBLE && style->overflowX() != OHIDDEN)
style->setOverflowX(OVISIBLE);
if (style->overflowY() != OVISIBLE && style->overflowY() != OHIDDEN)
style->setOverflowY(OVISIBLE);
}
// Menulists should have visible overflow
if (style->appearance() == MenulistPart) {
style->setOverflowX(OVISIBLE);
style->setOverflowY(OVISIBLE);
}
// Cull out any useless layers and also repeat patterns into additional layers.
style->adjustBackgroundLayers();
style->adjustMaskLayers();
// Do the same for animations and transitions.
style->adjustAnimations();
style->adjustTransitions();
// Important: Intrinsic margins get added to controls before the theme has adjusted the style, since the theme will
// alter fonts and heights/widths.
if (e && e->isFormControlElement() && style->fontSize() >= 11) {
// Don't apply intrinsic margins to image buttons. The designer knows how big the images are,
// so we have to treat all image buttons as though they were explicitly sized.
if (!e->hasTagName(inputTag) || !static_cast<HTMLInputElement*>(e)->isImageButton())
addIntrinsicMargins(style);
}
// Let the theme also have a crack at adjusting the style.
if (style->hasAppearance())
RenderTheme::defaultTheme()->adjustStyle(this, style, e, m_hasUAAppearance, m_borderData, m_backgroundData, m_backgroundColor);
#if ENABLE(SVG)
if (e && e->isSVGElement()) {
// Spec: http://www.w3.org/TR/SVG/masking.html#OverflowProperty
if (style->overflowY() == OSCROLL)
style->setOverflowY(OHIDDEN);
else if (style->overflowY() == OAUTO)
style->setOverflowY(OVISIBLE);
if (style->overflowX() == OSCROLL)
style->setOverflowX(OHIDDEN);
else if (style->overflowX() == OAUTO)
style->setOverflowX(OVISIBLE);
// Only the root <svg> element in an SVG document fragment tree honors css position
if (!(e->hasTagName(SVGNames::svgTag) && e->parentNode() && !e->parentNode()->isSVGElement()))
style->setPosition(RenderStyle::initialPosition());
}
#endif
}
void CSSStyleSelector::updateFont()
{
checkForTextSizeAdjust();
checkForGenericFamilyChange(style(), m_parentStyle);
checkForZoomChange(style(), m_parentStyle);
m_style->font().update(m_fontSelector);
m_fontDirty = false;
}
void CSSStyleSelector::cacheBorderAndBackground()
{
m_hasUAAppearance = m_style->hasAppearance();
if (m_hasUAAppearance) {
m_borderData = m_style->border();
m_backgroundData = *m_style->backgroundLayers();
m_backgroundColor = m_style->backgroundColor();
}
}
PassRefPtr<CSSRuleList> CSSStyleSelector::styleRulesForElement(Element* e, bool authorOnly, bool includeEmptyRules, CSSRuleFilter filter)
{
return pseudoStyleRulesForElement(e, NOPSEUDO, authorOnly, includeEmptyRules, filter);
}
PassRefPtr<CSSRuleList> CSSStyleSelector::pseudoStyleRulesForElement(Element* e, PseudoId pseudoId, bool authorOnly, bool includeEmptyRules, CSSRuleFilter filter)
{
if (!e || !e->document()->haveStylesheetsLoaded())
return 0;
m_checker.m_collectRulesOnly = true;
initElement(e);
initForStyleResolve(e, 0, pseudoId);
if (!authorOnly) {
int firstUARule = -1, lastUARule = -1;
// First we match rules from the user agent sheet.
matchUARules(firstUARule, lastUARule);
// Now we check user sheet rules.
if (m_matchAuthorAndUserStyles) {
int firstUserRule = -1, lastUserRule = -1;
matchRules(m_userStyle.get(), firstUserRule, lastUserRule, includeEmptyRules);
}
}
if (m_matchAuthorAndUserStyles) {
m_checker.m_sameOriginOnly = (filter == SameOriginCSSRulesOnly);
// Check the rules in author sheets.
int firstAuthorRule = -1, lastAuthorRule = -1;
matchRules(m_authorStyle.get(), firstAuthorRule, lastAuthorRule, includeEmptyRules);
m_checker.m_sameOriginOnly = false;
}
m_checker.m_collectRulesOnly = false;
return m_ruleList.release();
}
inline bool CSSStyleSelector::checkSelector(const RuleData& ruleData)
{
m_dynamicPseudo = NOPSEUDO;
// Let the slow path handle SVG as it has some additional rules regarding shadow trees.
if (ruleData.hasFastCheckableSelector() && !m_element->isSVGElement()) {
// We know this selector does not include any pseudo selectors.
if (m_checker.m_pseudoStyle != NOPSEUDO)
return false;
// We know a sufficiently simple single part selector matches simply because we found it from the rule hash.
// This is limited to HTML only so we don't need to check the namespace.
if (ruleData.hasTopSelectorMatchingHTMLBasedOnRuleHash() && !ruleData.hasMultipartSelector() && m_element->isHTMLElement())
return true;
return SelectorChecker::fastCheckSelector(ruleData.selector(), m_element);
}
// Slow path.
SelectorMatch match = m_checker.checkSelector(ruleData.selector(), m_element, &m_selectorAttrs, m_dynamicPseudo, false, false, style(), m_parentNode ? m_parentNode->renderStyle() : 0);
if (match != SelectorMatches)
return false;
if (m_checker.m_pseudoStyle != NOPSEUDO && m_checker.m_pseudoStyle != m_dynamicPseudo)
return false;
return true;
}
static inline bool selectorTagMatches(const Element* element, const CSSSelector* selector)
{
if (!selector->hasTag())
return true;
const AtomicString& localName = selector->tag().localName();
if (localName != starAtom && localName != element->localName())
return false;
const AtomicString& namespaceURI = selector->tag().namespaceURI();
return namespaceURI == starAtom || namespaceURI == element->namespaceURI();
}
static inline bool isFastCheckableSelector(const CSSSelector* selector)
{
for (; selector; selector = selector->tagHistory()) {
if (selector->relation() != CSSSelector::Descendant && selector->relation() != CSSSelector::Child && selector->relation() != CSSSelector::SubSelector)
return false;
if (selector->m_match != CSSSelector::None && selector->m_match != CSSSelector::Id && selector->m_match != CSSSelector::Class)
return false;
}
return true;
}
template <class ValueChecker>
inline bool fastCheckSingleSelector(const CSSSelector*& selector, const Element*& element, const CSSSelector*& topChildOrSubselector, const Element*& topChildOrSubselectorMatchElement)
{
AtomicStringImpl* value = selector->value().impl();
for (; element; element = element->parentElement()) {
if (ValueChecker::checkValue(element, value) && selectorTagMatches(element, selector)) {
if (selector->relation() == CSSSelector::Descendant)
topChildOrSubselector = 0;
else if (!topChildOrSubselector) {
ASSERT(selector->relation() == CSSSelector::Child || selector->relation() == CSSSelector::SubSelector);
topChildOrSubselector = selector;
topChildOrSubselectorMatchElement = element;
}
if (selector->relation() != CSSSelector::SubSelector)
element = element->parentElement();
selector = selector->tagHistory();
return true;
}
if (topChildOrSubselector) {
// Child or subselector check failed.
// If the match element is null, topChildOrSubselector was also the very topmost selector and had to match
// the original element we were checking.
if (!topChildOrSubselectorMatchElement)
return false;
// There may be other matches down the ancestor chain.
// Rewind to the topmost child or subselector and the element it matched, continue checking ancestors.
selector = topChildOrSubselector;
element = topChildOrSubselectorMatchElement->parentElement();
topChildOrSubselector = 0;
return true;
}
}
return false;
}
struct ClassCheck {
static bool checkValue(const Element* element, AtomicStringImpl* value)
{
return element->hasClass() && static_cast<const StyledElement*>(element)->classNames().contains(value);
}
};
struct IdCheck {
static bool checkValue(const Element* element, AtomicStringImpl* value)
{
return element->hasID() && element->idForStyleResolution().impl() == value;
}
};
struct TagCheck {
static bool checkValue(const Element*, AtomicStringImpl*)
{
return true;
}
};
bool CSSStyleSelector::SelectorChecker::fastCheckSelector(const CSSSelector* selector, const Element* element)
{
ASSERT(isFastCheckableSelector(selector));
// The top selector requires tag check only as rule hashes have already handled id and class matches.
if (!selectorTagMatches(element, selector))
return false;
const CSSSelector* topChildOrSubselector = 0;
const Element* topChildOrSubselectorMatchElement = 0;
if (selector->relation() == CSSSelector::Child || selector->relation() == CSSSelector::SubSelector)
topChildOrSubselector = selector;
if (selector->relation() != CSSSelector::SubSelector)
element = element->parentElement();
selector = selector->tagHistory();
// We know this compound selector has descendant, child and subselector combinators only and all components are simple.
while (selector) {
switch (selector->m_match) {
case CSSSelector::Class:
if (!fastCheckSingleSelector<ClassCheck>(selector, element, topChildOrSubselector, topChildOrSubselectorMatchElement))
return false;
break;
case CSSSelector::Id:
if (!fastCheckSingleSelector<IdCheck>(selector, element, topChildOrSubselector, topChildOrSubselectorMatchElement))
return false;
break;
case CSSSelector::None:
if (!fastCheckSingleSelector<TagCheck>(selector, element, topChildOrSubselector, topChildOrSubselectorMatchElement))
return false;
break;
default:
ASSERT_NOT_REACHED();
}
}
return true;
}
// Recursive check of selectors and combinators
// It can return 3 different values:
// * SelectorMatches - the selector matches the element e
// * SelectorFailsLocally - the selector fails for the element e
// * SelectorFailsCompletely - the selector fails for e and any sibling or ancestor of e
CSSStyleSelector::SelectorMatch CSSStyleSelector::SelectorChecker::checkSelector(CSSSelector* sel, Element* e, HashSet<AtomicStringImpl*>* selectorAttrs, PseudoId& dynamicPseudo, bool isSubSelector, bool encounteredLink, RenderStyle* elementStyle, RenderStyle* elementParentStyle) const
{
#if ENABLE(SVG)
// Spec: CSS2 selectors cannot be applied to the (conceptually) cloned DOM tree
// because its contents are not part of the formal document structure.
if (e->isSVGElement() && e->isShadowRoot())
return SelectorFailsCompletely;
#endif
// first selector has to match
if (!checkOneSelector(sel, e, selectorAttrs, dynamicPseudo, isSubSelector, encounteredLink, elementStyle, elementParentStyle))
return SelectorFailsLocally;
// The rest of the selectors has to match
CSSSelector::Relation relation = sel->relation();
// Prepare next sel
sel = sel->tagHistory();
if (!sel)
return SelectorMatches;
if (relation != CSSSelector::SubSelector)
// Bail-out if this selector is irrelevant for the pseudoStyle
if (m_pseudoStyle != NOPSEUDO && m_pseudoStyle != dynamicPseudo)
return SelectorFailsCompletely;
// Check for nested links.
if (m_matchVisitedPseudoClass && !isSubSelector) {
RenderStyle* currentStyle = elementStyle ? elementStyle : e->renderStyle();
if (currentStyle && currentStyle->insideLink() && e->isLink()) {
if (encounteredLink)
m_matchVisitedPseudoClass = false; // This link is not relevant to the style being resolved, so disable matching.
else
encounteredLink = true;
}
}
switch (relation) {
case CSSSelector::Descendant:
while (true) {
ContainerNode* n = e->parentNode();
if (!n || !n->isElementNode())
return SelectorFailsCompletely;
e = static_cast<Element*>(n);
SelectorMatch match = checkSelector(sel, e, selectorAttrs, dynamicPseudo, false, encounteredLink);
if (match != SelectorFailsLocally)
return match;
}
break;
case CSSSelector::Child:
{
ContainerNode* n = e->parentNode();
if (!n || !n->isElementNode())
return SelectorFailsCompletely;
e = static_cast<Element*>(n);
return checkSelector(sel, e, selectorAttrs, dynamicPseudo, false, encounteredLink);
}
case CSSSelector::DirectAdjacent:
{
if (!m_collectRulesOnly && e->parentNode() && e->parentNode()->isElementNode()) {
RenderStyle* parentStyle = elementStyle ? elementParentStyle : e->parentNode()->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByDirectAdjacentRules();
}
Node* n = e->previousSibling();
while (n && !n->isElementNode())
n = n->previousSibling();
if (!n)
return SelectorFailsLocally;
e = static_cast<Element*>(n);
m_matchVisitedPseudoClass = false;
return checkSelector(sel, e, selectorAttrs, dynamicPseudo, false, encounteredLink);
}
case CSSSelector::IndirectAdjacent:
if (!m_collectRulesOnly && e->parentNode() && e->parentNode()->isElementNode()) {
RenderStyle* parentStyle = elementStyle ? elementParentStyle : e->parentNode()->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByForwardPositionalRules();
}
while (true) {
Node* n = e->previousSibling();
while (n && !n->isElementNode())
n = n->previousSibling();
if (!n)
return SelectorFailsLocally;
e = static_cast<Element*>(n);
m_matchVisitedPseudoClass = false;
SelectorMatch match = checkSelector(sel, e, selectorAttrs, dynamicPseudo, false, encounteredLink);
if (match != SelectorFailsLocally)
return match;
};
break;
case CSSSelector::SubSelector:
// a selector is invalid if something follows a pseudo-element
// We make an exception for scrollbar pseudo elements and allow a set of pseudo classes (but nothing else)
// to follow the pseudo elements.
if ((elementStyle || m_collectRulesOnly) && dynamicPseudo != NOPSEUDO && dynamicPseudo != SELECTION &&
!((RenderScrollbar::scrollbarForStyleResolve() || dynamicPseudo == SCROLLBAR_CORNER || dynamicPseudo == RESIZER) && sel->m_match == CSSSelector::PseudoClass))
return SelectorFailsCompletely;
return checkSelector(sel, e, selectorAttrs, dynamicPseudo, true, encounteredLink, elementStyle, elementParentStyle);
case CSSSelector::ShadowDescendant:
{
Node* shadowHostNode = e->shadowAncestorNode();
if (shadowHostNode == e || !shadowHostNode->isElementNode())
return SelectorFailsCompletely;
e = static_cast<Element*>(shadowHostNode);
return checkSelector(sel, e, selectorAttrs, dynamicPseudo, false, encounteredLink);
}
}
return SelectorFailsCompletely;
}
static void addLocalNameToSet(HashSet<AtomicStringImpl*>* set, const QualifiedName& qName)
{
set->add(qName.localName().impl());
}
static HashSet<AtomicStringImpl*>* createHtmlCaseInsensitiveAttributesSet()
{
// This is the list of attributes in HTML 4.01 with values marked as "[CI]" or case-insensitive
// Mozilla treats all other values as case-sensitive, thus so do we.
HashSet<AtomicStringImpl*>* attrSet = new HashSet<AtomicStringImpl*>;
addLocalNameToSet(attrSet, accept_charsetAttr);
addLocalNameToSet(attrSet, acceptAttr);
addLocalNameToSet(attrSet, alignAttr);
addLocalNameToSet(attrSet, alinkAttr);
addLocalNameToSet(attrSet, axisAttr);
addLocalNameToSet(attrSet, bgcolorAttr);
addLocalNameToSet(attrSet, charsetAttr);
addLocalNameToSet(attrSet, checkedAttr);
addLocalNameToSet(attrSet, clearAttr);
addLocalNameToSet(attrSet, codetypeAttr);
addLocalNameToSet(attrSet, colorAttr);
addLocalNameToSet(attrSet, compactAttr);
addLocalNameToSet(attrSet, declareAttr);
addLocalNameToSet(attrSet, deferAttr);
addLocalNameToSet(attrSet, dirAttr);
addLocalNameToSet(attrSet, disabledAttr);
addLocalNameToSet(attrSet, enctypeAttr);
addLocalNameToSet(attrSet, faceAttr);
addLocalNameToSet(attrSet, frameAttr);
addLocalNameToSet(attrSet, hreflangAttr);
addLocalNameToSet(attrSet, http_equivAttr);
addLocalNameToSet(attrSet, langAttr);
addLocalNameToSet(attrSet, languageAttr);
addLocalNameToSet(attrSet, linkAttr);
addLocalNameToSet(attrSet, mediaAttr);
addLocalNameToSet(attrSet, methodAttr);
addLocalNameToSet(attrSet, multipleAttr);
addLocalNameToSet(attrSet, nohrefAttr);
addLocalNameToSet(attrSet, noresizeAttr);
addLocalNameToSet(attrSet, noshadeAttr);
addLocalNameToSet(attrSet, nowrapAttr);
addLocalNameToSet(attrSet, readonlyAttr);
addLocalNameToSet(attrSet, relAttr);
addLocalNameToSet(attrSet, revAttr);
addLocalNameToSet(attrSet, rulesAttr);
addLocalNameToSet(attrSet, scopeAttr);
addLocalNameToSet(attrSet, scrollingAttr);
addLocalNameToSet(attrSet, selectedAttr);
addLocalNameToSet(attrSet, shapeAttr);
addLocalNameToSet(attrSet, targetAttr);
addLocalNameToSet(attrSet, textAttr);
addLocalNameToSet(attrSet, typeAttr);
addLocalNameToSet(attrSet, valignAttr);
addLocalNameToSet(attrSet, valuetypeAttr);
addLocalNameToSet(attrSet, vlinkAttr);
return attrSet;
}
static bool htmlAttributeHasCaseInsensitiveValue(const QualifiedName& attr)
{
static HashSet<AtomicStringImpl*>* htmlCaseInsensitiveAttributesSet = createHtmlCaseInsensitiveAttributesSet();
bool isPossibleHTMLAttr = !attr.hasPrefix() && (attr.namespaceURI() == nullAtom);
return isPossibleHTMLAttr && htmlCaseInsensitiveAttributesSet->contains(attr.localName().impl());
}
bool CSSStyleSelector::SelectorChecker::checkOneSelector(CSSSelector* sel, Element* e, HashSet<AtomicStringImpl*>* selectorAttrs, PseudoId& dynamicPseudo, bool isSubSelector, bool encounteredLink, RenderStyle* elementStyle, RenderStyle* elementParentStyle) const
{
ASSERT(e);
if (!e)
return false;
if (!selectorTagMatches(e, sel))
return false;
if (sel->hasAttribute()) {
if (sel->m_match == CSSSelector::Class)
return e->hasClass() && static_cast<StyledElement*>(e)->classNames().contains(sel->value());
if (sel->m_match == CSSSelector::Id)
return e->hasID() && e->idForStyleResolution() == sel->value();
const QualifiedName& attr = sel->attribute();
// FIXME: Handle the case were elementStyle is 0.
if (elementStyle && (!e->isStyledElement() || (!static_cast<StyledElement*>(e)->isMappedAttribute(attr) && attr != typeAttr && attr != readonlyAttr))) {
elementStyle->setAffectedByAttributeSelectors(); // Special-case the "type" and "readonly" attributes so input form controls can share style.
if (selectorAttrs)
selectorAttrs->add(attr.localName().impl());
}
const AtomicString& value = e->getAttribute(attr);
if (value.isNull())
return false; // attribute is not set
bool caseSensitive = !m_documentIsHTML || !htmlAttributeHasCaseInsensitiveValue(attr);
switch (sel->m_match) {
case CSSSelector::Exact:
if (caseSensitive ? sel->value() != value : !equalIgnoringCase(sel->value(), value))
return false;
break;
case CSSSelector::List:
{
// Ignore empty selectors or selectors containing spaces
if (sel->value().contains(' ') || sel->value().isEmpty())
return false;
unsigned startSearchAt = 0;
while (true) {
size_t foundPos = value.find(sel->value(), startSearchAt, caseSensitive);
if (foundPos == notFound)
return false;
if (foundPos == 0 || value[foundPos - 1] == ' ') {
unsigned endStr = foundPos + sel->value().length();
if (endStr == value.length() || value[endStr] == ' ')
break; // We found a match.
}
// No match. Keep looking.
startSearchAt = foundPos + 1;
}
break;
}
case CSSSelector::Contain:
if (!value.contains(sel->value(), caseSensitive) || sel->value().isEmpty())
return false;
break;
case CSSSelector::Begin:
if (!value.startsWith(sel->value(), caseSensitive) || sel->value().isEmpty())
return false;
break;
case CSSSelector::End:
if (!value.endsWith(sel->value(), caseSensitive) || sel->value().isEmpty())
return false;
break;
case CSSSelector::Hyphen:
if (value.length() < sel->value().length())
return false;
if (!value.startsWith(sel->value(), caseSensitive))
return false;
// It they start the same, check for exact match or following '-':
if (value.length() != sel->value().length() && value[sel->value().length()] != '-')
return false;
break;
case CSSSelector::PseudoClass:
case CSSSelector::PseudoElement:
default:
break;
}
}
if (sel->m_match == CSSSelector::PseudoClass) {
// Handle :not up front.
if (sel->pseudoType() == CSSSelector::PseudoNot) {
ASSERT(sel->selectorList());
for (CSSSelector* subSel = sel->selectorList()->first(); subSel; subSel = subSel->tagHistory()) {
// :not cannot nest. I don't really know why this is a
// restriction in CSS3, but it is, so let's honor it.
// the parser enforces that this never occurs
ASSERT(subSel->pseudoType() != CSSSelector::PseudoNot);
if (!checkOneSelector(subSel, e, selectorAttrs, dynamicPseudo, true, encounteredLink, elementStyle, elementParentStyle))
return true;
}
} else if (dynamicPseudo != NOPSEUDO && (RenderScrollbar::scrollbarForStyleResolve() || dynamicPseudo == SCROLLBAR_CORNER || dynamicPseudo == RESIZER)) {
// CSS scrollbars match a specific subset of pseudo classes, and they have specialized rules for each
// (since there are no elements involved).
return checkScrollbarPseudoClass(sel, dynamicPseudo);
} else if (dynamicPseudo == SELECTION) {
if (sel->pseudoType() == CSSSelector::PseudoWindowInactive)
return !m_document->page()->focusController()->isActive();
}
// Normal element pseudo class checking.
switch (sel->pseudoType()) {
// Pseudo classes:
case CSSSelector::PseudoNot:
break; // Already handled up above.
case CSSSelector::PseudoEmpty: {
bool result = true;
for (Node* n = e->firstChild(); n; n = n->nextSibling()) {
if (n->isElementNode()) {
result = false;
break;
} else if (n->isTextNode()) {
Text* textNode = static_cast<Text*>(n);
if (!textNode->data().isEmpty()) {
result = false;
break;
}
}
}
if (!m_collectRulesOnly) {
if (elementStyle)
elementStyle->setEmptyState(result);
else if (e->renderStyle() && (e->document()->usesSiblingRules() || e->renderStyle()->unique()))
e->renderStyle()->setEmptyState(result);
}
return result;
}
case CSSSelector::PseudoFirstChild: {
// first-child matches the first child that is an element
if (e->parentNode() && e->parentNode()->isElementNode()) {
bool result = false;
Node* n = e->previousSibling();
while (n && !n->isElementNode())
n = n->previousSibling();
if (!n)
result = true;
if (!m_collectRulesOnly) {
RenderStyle* childStyle = elementStyle ? elementStyle : e->renderStyle();
RenderStyle* parentStyle = elementStyle ? elementParentStyle : e->parentNode()->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByFirstChildRules();
if (result && childStyle)
childStyle->setFirstChildState();
}
return result;
}
break;
}
case CSSSelector::PseudoFirstOfType: {
// first-of-type matches the first element of its type
if (e->parentNode() && e->parentNode()->isElementNode()) {
bool result = false;
const QualifiedName& type = e->tagQName();
Node* n = e->previousSibling();
while (n) {
if (n->isElementNode() && static_cast<Element*>(n)->hasTagName(type))
break;
n = n->previousSibling();
}
if (!n)
result = true;
if (!m_collectRulesOnly) {
RenderStyle* parentStyle = elementStyle ? elementParentStyle : e->parentNode()->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByForwardPositionalRules();
}
return result;
}
break;
}
case CSSSelector::PseudoLastChild: {
// last-child matches the last child that is an element
if (Element* parentElement = e->parentElement()) {
bool result = false;
if (parentElement->isFinishedParsingChildren()) {
Node* n = e->nextSibling();
while (n && !n->isElementNode())
n = n->nextSibling();
if (!n)
result = true;
}
if (!m_collectRulesOnly) {
RenderStyle* childStyle = elementStyle ? elementStyle : e->renderStyle();
RenderStyle* parentStyle = elementStyle ? elementParentStyle : parentElement->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByLastChildRules();
if (result && childStyle)
childStyle->setLastChildState();
}
return result;
}
break;
}
case CSSSelector::PseudoLastOfType: {
// last-of-type matches the last element of its type
if (Element* parentElement = e->parentElement()) {
if (!m_collectRulesOnly) {
RenderStyle* parentStyle = elementStyle ? elementParentStyle : parentElement->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByBackwardPositionalRules();
}
if (!parentElement->isFinishedParsingChildren())
return false;
bool result = false;
const QualifiedName& type = e->tagQName();
Node* n = e->nextSibling();
while (n) {
if (n->isElementNode() && static_cast<Element*>(n)->hasTagName(type))
break;
n = n->nextSibling();
}
if (!n)
result = true;
return result;
}
break;
}
case CSSSelector::PseudoOnlyChild: {
if (Element* parentElement = e->parentElement()) {
bool firstChild = false;
bool lastChild = false;
Node* n = e->previousSibling();
while (n && !n->isElementNode())
n = n->previousSibling();
if (!n)
firstChild = true;
if (firstChild && parentElement->isFinishedParsingChildren()) {
n = e->nextSibling();
while (n && !n->isElementNode())
n = n->nextSibling();
if (!n)
lastChild = true;
}
if (!m_collectRulesOnly) {
RenderStyle* childStyle = elementStyle ? elementStyle : e->renderStyle();
RenderStyle* parentStyle = elementStyle ? elementParentStyle : parentElement->renderStyle();
if (parentStyle) {
parentStyle->setChildrenAffectedByFirstChildRules();
parentStyle->setChildrenAffectedByLastChildRules();
}
if (firstChild && childStyle)
childStyle->setFirstChildState();
if (lastChild && childStyle)
childStyle->setLastChildState();
}
return firstChild && lastChild;
}
break;
}
case CSSSelector::PseudoOnlyOfType: {
// FIXME: This selector is very slow.
if (Element* parentElement = e->parentElement()) {
if (!m_collectRulesOnly) {
RenderStyle* parentStyle = elementStyle ? elementParentStyle : parentElement->renderStyle();
if (parentStyle) {
parentStyle->setChildrenAffectedByForwardPositionalRules();
parentStyle->setChildrenAffectedByBackwardPositionalRules();
}
}
if (!parentElement->isFinishedParsingChildren())
return false;
bool firstChild = false;
bool lastChild = false;
const QualifiedName& type = e->tagQName();
Node* n = e->previousSibling();
while (n) {
if (n->isElementNode() && static_cast<Element*>(n)->hasTagName(type))
break;
n = n->previousSibling();
}
if (!n)
firstChild = true;
if (firstChild) {
n = e->nextSibling();
while (n) {
if (n->isElementNode() && static_cast<Element*>(n)->hasTagName(type))
break;
n = n->nextSibling();
}
if (!n)
lastChild = true;
}
return firstChild && lastChild;
}
break;
}
case CSSSelector::PseudoNthChild: {
if (!sel->parseNth())
break;
if (Element* parentElement = e->parentElement()) {
int count = 1;
Node* n = e->previousSibling();
while (n) {
if (n->isElementNode()) {
RenderStyle* s = n->renderStyle();
unsigned index = s ? s->childIndex() : 0;
if (index) {
count += index;
break;
}
count++;
}
n = n->previousSibling();
}
if (!m_collectRulesOnly) {
RenderStyle* childStyle = elementStyle ? elementStyle : e->renderStyle();
RenderStyle* parentStyle = elementStyle ? elementParentStyle : parentElement->renderStyle();
if (childStyle)
childStyle->setChildIndex(count);
if (parentStyle)
parentStyle->setChildrenAffectedByForwardPositionalRules();
}
if (sel->matchNth(count))
return true;
}
break;
}
case CSSSelector::PseudoNthOfType: {
if (!sel->parseNth())
break;
if (Element* parentElement = e->parentElement()) {
int count = 1;
const QualifiedName& type = e->tagQName();
Node* n = e->previousSibling();
while (n) {
if (n->isElementNode() && static_cast<Element*>(n)->hasTagName(type))
count++;
n = n->previousSibling();
}
if (!m_collectRulesOnly) {
RenderStyle* parentStyle = elementStyle ? elementParentStyle : parentElement->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByForwardPositionalRules();
}
if (sel->matchNth(count))
return true;
}
break;
}
case CSSSelector::PseudoNthLastChild: {
if (!sel->parseNth())
break;
if (Element* parentElement = e->parentElement()) {
if (!m_collectRulesOnly) {
RenderStyle* parentStyle = elementStyle ? elementParentStyle : parentElement->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByBackwardPositionalRules();
}
if (!parentElement->isFinishedParsingChildren())
return false;
int count = 1;
Node* n = e->nextSibling();
while (n) {
if (n->isElementNode())
count++;
n = n->nextSibling();
}
if (sel->matchNth(count))
return true;
}
break;
}
case CSSSelector::PseudoNthLastOfType: {
if (!sel->parseNth())
break;
if (Element* parentElement = e->parentElement()) {
if (!m_collectRulesOnly) {
RenderStyle* parentStyle = elementStyle ? elementParentStyle : parentElement->renderStyle();
if (parentStyle)
parentStyle->setChildrenAffectedByBackwardPositionalRules();
}
if (!parentElement->isFinishedParsingChildren())
return false;
int count = 1;
const QualifiedName& type = e->tagQName();
Node* n = e->nextSibling();
while (n) {
if (n->isElementNode() && static_cast<Element*>(n)->hasTagName(type))
count++;
n = n->nextSibling();
}
if (sel->matchNth(count))
return true;
}
break;
}
case CSSSelector::PseudoTarget:
if (e == e->document()->cssTarget())
return true;
break;
case CSSSelector::PseudoAny:
for (CSSSelector* selector = sel->selectorList()->first(); selector; selector = CSSSelectorList::next(selector)) {
if (checkSelector(selector, e, selectorAttrs, dynamicPseudo, true, encounteredLink, elementStyle, elementParentStyle) == SelectorMatches)
return true;
}
break;
case CSSSelector::PseudoAnyLink:
if (e && e->isLink())
return true;
break;
case CSSSelector::PseudoAutofill: {
if (!e || !e->isFormControlElement())
break;
if (InputElement* inputElement = e->toInputElement())
return inputElement->isAutofilled();
break;
}
case CSSSelector::PseudoLink:
if (e && e->isLink())
return !m_matchVisitedPseudoClass;
break;
case CSSSelector::PseudoVisited:
if (e && e->isLink())
return m_matchVisitedPseudoClass;
break;
case CSSSelector::PseudoDrag: {
if (elementStyle)
elementStyle->setAffectedByDragRules(true);
else if (e->renderStyle())
e->renderStyle()->setAffectedByDragRules(true);
if (e->renderer() && e->renderer()->isDragging())
return true;
break;
}
case CSSSelector::PseudoFocus:
if (e && e->focused() && e->document()->frame() && e->document()->frame()->selection()->isFocusedAndActive())
return true;
break;
case CSSSelector::PseudoHover: {
// If we're in quirks mode, then hover should never match anchors with no
// href and *:hover should not match anything. This is important for sites like wsj.com.
if (m_strictParsing || isSubSelector || (sel->hasTag() && !e->hasTagName(aTag)) || e->isLink()) {
if (elementStyle)
elementStyle->setAffectedByHoverRules(true);
else if (e->renderStyle())
e->renderStyle()->setAffectedByHoverRules(true);
if (e->hovered())
return true;
}
break;
}
case CSSSelector::PseudoActive:
// If we're in quirks mode, then :active should never match anchors with no
// href and *:active should not match anything.
if (m_strictParsing || isSubSelector || (sel->hasTag() && !e->hasTagName(aTag)) || e->isLink()) {
if (elementStyle)
elementStyle->setAffectedByActiveRules(true);
else if (e->renderStyle())
e->renderStyle()->setAffectedByActiveRules(true);
if (e->active())
return true;
}
break;
case CSSSelector::PseudoEnabled:
if (e && e->isFormControlElement())
return e->isEnabledFormControl();
break;
case CSSSelector::PseudoFullPageMedia:
return e && e->document() && e->document()->isMediaDocument();
break;
case CSSSelector::PseudoDefault:
return e && e->isDefaultButtonForForm();
case CSSSelector::PseudoDisabled:
if (e && e->isFormControlElement())
return !e->isEnabledFormControl();
break;
case CSSSelector::PseudoReadOnly: {
if (!e || !e->isFormControlElement())
return false;
return e->isTextFormControl() && e->isReadOnlyFormControl();
}
case CSSSelector::PseudoReadWrite: {
if (!e || !e->isFormControlElement())
return false;
return e->isTextFormControl() && !e->isReadOnlyFormControl();
}
case CSSSelector::PseudoOptional:
return e && e->isOptionalFormControl();
case CSSSelector::PseudoRequired:
return e && e->isRequiredFormControl();
case CSSSelector::PseudoValid: {
if (!e)
return false;
e->document()->setContainsValidityStyleRules();
return e->willValidate() && e->isValidFormControlElement();
} case CSSSelector::PseudoInvalid: {
if (!e)
return false;
e->document()->setContainsValidityStyleRules();
return (e->willValidate() && !e->isValidFormControlElement()) || e->hasUnacceptableValue();
} case CSSSelector::PseudoChecked: {
if (!e || !e->isFormControlElement())
break;
// Even though WinIE allows checked and indeterminate to co-exist, the CSS selector spec says that
// you can't be both checked and indeterminate. We will behave like WinIE behind the scenes and just
// obey the CSS spec here in the test for matching the pseudo.
InputElement* inputElement = e->toInputElement();
if (inputElement && inputElement->isChecked() && !inputElement->isIndeterminate())
return true;
break;
}
case CSSSelector::PseudoIndeterminate: {
if (!e || !e->isFormControlElement())
break;
InputElement* inputElement = e->toInputElement();
if (inputElement && inputElement->isIndeterminate())
return true;
break;
}
case CSSSelector::PseudoRoot:
if (e == e->document()->documentElement())
return true;
break;
case CSSSelector::PseudoLang: {
AtomicString value = e->computeInheritedLanguage();
const AtomicString& argument = sel->argument();
if (value.isEmpty() || !value.startsWith(argument, false))
break;
if (value.length() != argument.length() && value[argument.length()] != '-')
break;
return true;
}
#if ENABLE(FULLSCREEN_API)
case CSSSelector::PseudoFullScreen:
// While a Document is in the fullscreen state, and the document's current fullscreen
// element is an element in the document, the 'full-screen' pseudoclass applies to
// that element. Also, an <iframe>, <object> or <embed> element whose child browsing
// context's Document is in the fullscreen state has the 'full-screen' pseudoclass applied.
if (!e->document()->webkitIsFullScreen())
return false;
if (e != e->document()->webkitCurrentFullScreenElement())
return false;
return true;
case CSSSelector::PseudoFullScreenDocument:
// While a Document is in the fullscreen state, the 'full-screen-document' pseudoclass applies
// to all elements of that Document.
if (!e->document()->webkitIsFullScreen())
return false;
return true;
#endif
case CSSSelector::PseudoInRange:
if (!e)
return false;
e->document()->setContainsValidityStyleRules();
return e->isInRange();
case CSSSelector::PseudoOutOfRange:
if (!e)
return false;
e->document()->setContainsValidityStyleRules();
return e->isOutOfRange();
case CSSSelector::PseudoUnknown:
case CSSSelector::PseudoNotParsed:
default:
ASSERT_NOT_REACHED();
break;
}
return false;
}
if (sel->m_match == CSSSelector::PseudoElement) {
if (!elementStyle && !m_collectRulesOnly)
return false;
PseudoId pseudoId = CSSSelector::pseudoId(sel->pseudoType());
if (pseudoId == FIRST_LETTER) {
if (Document* document = e->document())
document->setUsesFirstLetterRules(true);
}
if (pseudoId != NOPSEUDO)
dynamicPseudo = pseudoId;
}
// ### add the rest of the checks...
return true;
}
bool CSSStyleSelector::SelectorChecker::checkScrollbarPseudoClass(CSSSelector* sel, PseudoId&) const
{
RenderScrollbar* scrollbar = RenderScrollbar::scrollbarForStyleResolve();
ScrollbarPart part = RenderScrollbar::partForStyleResolve();
// FIXME: This is a temporary hack for resizers and scrollbar corners. Eventually :window-inactive should become a real
// pseudo class and just apply to everything.
if (sel->pseudoType() == CSSSelector::PseudoWindowInactive)
return !m_document->page()->focusController()->isActive();
if (!scrollbar)
return false;
ASSERT(sel->m_match == CSSSelector::PseudoClass);
switch (sel->pseudoType()) {
case CSSSelector::PseudoEnabled:
return scrollbar->enabled();
case CSSSelector::PseudoDisabled:
return !scrollbar->enabled();
case CSSSelector::PseudoHover: {
ScrollbarPart hoveredPart = scrollbar->hoveredPart();
if (part == ScrollbarBGPart)
return hoveredPart != NoPart;
if (part == TrackBGPart)
return hoveredPart == BackTrackPart || hoveredPart == ForwardTrackPart || hoveredPart == ThumbPart;
return part == hoveredPart;
}
case CSSSelector::PseudoActive: {
ScrollbarPart pressedPart = scrollbar->pressedPart();
if (part == ScrollbarBGPart)
return pressedPart != NoPart;
if (part == TrackBGPart)
return pressedPart == BackTrackPart || pressedPart == ForwardTrackPart || pressedPart == ThumbPart;
return part == pressedPart;
}
case CSSSelector::PseudoHorizontal:
return scrollbar->orientation() == HorizontalScrollbar;
case CSSSelector::PseudoVertical:
return scrollbar->orientation() == VerticalScrollbar;
case CSSSelector::PseudoDecrement:
return part == BackButtonStartPart || part == BackButtonEndPart || part == BackTrackPart;
case CSSSelector::PseudoIncrement:
return part == ForwardButtonStartPart || part == ForwardButtonEndPart || part == ForwardTrackPart;
case CSSSelector::PseudoStart:
return part == BackButtonStartPart || part == ForwardButtonStartPart || part == BackTrackPart;
case CSSSelector::PseudoEnd:
return part == BackButtonEndPart || part == ForwardButtonEndPart || part == ForwardTrackPart;
case CSSSelector::PseudoDoubleButton: {
ScrollbarButtonsPlacement buttonsPlacement = scrollbar->theme()->buttonsPlacement();
if (part == BackButtonStartPart || part == ForwardButtonStartPart || part == BackTrackPart)
return buttonsPlacement == ScrollbarButtonsDoubleStart || buttonsPlacement == ScrollbarButtonsDoubleBoth;
if (part == BackButtonEndPart || part == ForwardButtonEndPart || part == ForwardTrackPart)
return buttonsPlacement == ScrollbarButtonsDoubleEnd || buttonsPlacement == ScrollbarButtonsDoubleBoth;
return false;
}
case CSSSelector::PseudoSingleButton: {
ScrollbarButtonsPlacement buttonsPlacement = scrollbar->theme()->buttonsPlacement();
if (part == BackButtonStartPart || part == ForwardButtonEndPart || part == BackTrackPart || part == ForwardTrackPart)
return buttonsPlacement == ScrollbarButtonsSingle;
return false;
}
case CSSSelector::PseudoNoButton: {
ScrollbarButtonsPlacement buttonsPlacement = scrollbar->theme()->buttonsPlacement();
if (part == BackTrackPart)
return buttonsPlacement == ScrollbarButtonsNone || buttonsPlacement == ScrollbarButtonsDoubleEnd;
if (part == ForwardTrackPart)
return buttonsPlacement == ScrollbarButtonsNone || buttonsPlacement == ScrollbarButtonsDoubleStart;
return false;
}
case CSSSelector::PseudoCornerPresent:
return scrollbar->scrollableArea()->isScrollCornerVisible();
default:
return false;
}
}
// -----------------------------------------------------------------
static inline bool isSelectorMatchingHTMLBasedOnRuleHash(const CSSSelector* selector)
{
const AtomicString& selectorNamespace = selector->tag().namespaceURI();
if (selectorNamespace != starAtom && selectorNamespace != xhtmlNamespaceURI)
return false;
if (selector->m_match == CSSSelector::None)
return true;
if (selector->m_match != CSSSelector::Id && selector->m_match != CSSSelector::Class)
return false;
return selector->tag() == starAtom;
}
RuleData::RuleData(CSSStyleRule* rule, CSSSelector* selector, unsigned position)
: m_rule(rule)
, m_selector(selector)
, m_specificity(selector->specificity())
, m_position(position)
, m_hasFastCheckableSelector(isFastCheckableSelector(selector))
, m_hasMultipartSelector(selector->tagHistory())
, m_hasTopSelectorMatchingHTMLBasedOnRuleHash(isSelectorMatchingHTMLBasedOnRuleHash(selector))
{
collectDescendantSelectorIdentifierHashes();
}
inline void RuleData::collectIdentifierHashes(const CSSSelector* selector, unsigned& identifierCount)
{
if ((selector->m_match == CSSSelector::Id || selector->m_match == CSSSelector::Class) && !selector->value().isEmpty())
m_descendantSelectorIdentifierHashes[identifierCount++] = selector->value().impl()->existingHash();
if (identifierCount == maximumIdentifierCount)
return;
const AtomicString& localName = selector->tag().localName();
if (localName != starAtom)
m_descendantSelectorIdentifierHashes[identifierCount++] = localName.impl()->existingHash();
}
inline void RuleData::collectDescendantSelectorIdentifierHashes()
{
unsigned identifierCount = 0;
CSSSelector::Relation relation = m_selector->relation();
// Skip the topmost selector. It is handled quickly by the rule hashes.
bool skipOverSubselectors = true;
for (const CSSSelector* selector = m_selector->tagHistory(); selector; selector = selector->tagHistory()) {
// Only collect identifiers that match ancestors.
switch (relation) {
case CSSSelector::SubSelector:
if (!skipOverSubselectors)
collectIdentifierHashes(selector, identifierCount);
break;
case CSSSelector::DirectAdjacent:
case CSSSelector::IndirectAdjacent:
case CSSSelector::ShadowDescendant:
skipOverSubselectors = true;
break;
case CSSSelector::Descendant:
case CSSSelector::Child:
skipOverSubselectors = false;
collectIdentifierHashes(selector, identifierCount);
break;
}
if (identifierCount == maximumIdentifierCount)
return;
relation = selector->relation();
}
m_descendantSelectorIdentifierHashes[identifierCount] = 0;
}
RuleSet::RuleSet()
: m_ruleCount(0)
, m_autoShrinkToFitEnabled(true)
{
}
RuleSet::~RuleSet()
{
deleteAllValues(m_idRules);
deleteAllValues(m_classRules);
deleteAllValues(m_pseudoRules);
deleteAllValues(m_tagRules);
}
void RuleSet::addToRuleSet(AtomicStringImpl* key, AtomRuleMap& map,
CSSStyleRule* rule, CSSSelector* sel)
{
if (!key) return;
Vector<RuleData>* rules = map.get(key);
if (!rules) {
rules = new Vector<RuleData>;
map.set(key, rules);
}
rules->append(RuleData(rule, sel, m_ruleCount++));
}
void RuleSet::addRule(CSSStyleRule* rule, CSSSelector* sel)
{
if (sel->m_match == CSSSelector::Id) {
addToRuleSet(sel->value().impl(), m_idRules, rule, sel);
return;
}
if (sel->m_match == CSSSelector::Class) {
addToRuleSet(sel->value().impl(), m_classRules, rule, sel);
return;
}
if (sel->isUnknownPseudoElement()) {
addToRuleSet(sel->value().impl(), m_pseudoRules, rule, sel);
return;
}
const AtomicString& localName = sel->tag().localName();
if (localName != starAtom) {
addToRuleSet(localName.impl(), m_tagRules, rule, sel);
return;
}
m_universalRules.append(RuleData(rule, sel, m_ruleCount++));
}
void RuleSet::addPageRule(CSSStyleRule* rule, CSSSelector* sel)
{
m_pageRules.append(RuleData(rule, sel, m_pageRules.size()));
}
void RuleSet::addRulesFromSheet(CSSStyleSheet* sheet, const MediaQueryEvaluator& medium, CSSStyleSelector* styleSelector)
{
if (!sheet)
return;
// No media implies "all", but if a media list exists it must
// contain our current medium
if (sheet->media() && !medium.eval(sheet->media(), styleSelector))
return; // the style sheet doesn't apply
int len = sheet->length();
for (int i = 0; i < len; i++) {
StyleBase* item = sheet->item(i);
if (item->isStyleRule())
addStyleRule(static_cast<CSSStyleRule*>(item));
else if (item->isImportRule()) {
CSSImportRule* import = static_cast<CSSImportRule*>(item);
if (!import->media() || medium.eval(import->media(), styleSelector))
addRulesFromSheet(import->styleSheet(), medium, styleSelector);
}
else if (item->isMediaRule()) {
CSSMediaRule* r = static_cast<CSSMediaRule*>(item);
CSSRuleList* rules = r->cssRules();
if ((!r->media() || medium.eval(r->media(), styleSelector)) && rules) {
// Traverse child elements of the @media rule.
for (unsigned j = 0; j < rules->length(); j++) {
CSSRule *childItem = rules->item(j);
if (childItem->isStyleRule()) {
// It is a StyleRule, so append it to our list
addStyleRule(static_cast<CSSStyleRule*>(childItem));
} else if (childItem->isFontFaceRule() && styleSelector) {
// Add this font face to our set.
const CSSFontFaceRule* fontFaceRule = static_cast<CSSFontFaceRule*>(childItem);
styleSelector->fontSelector()->addFontFaceRule(fontFaceRule);
} else if (childItem->isKeyframesRule() && styleSelector) {
// Add this keyframe rule to our set.
styleSelector->addKeyframeStyle(static_cast<WebKitCSSKeyframesRule*>(childItem));
}
} // for rules
} // if rules
} else if (item->isFontFaceRule() && styleSelector) {
// Add this font face to our set.
const CSSFontFaceRule* fontFaceRule = static_cast<CSSFontFaceRule*>(item);
styleSelector->fontSelector()->addFontFaceRule(fontFaceRule);
} else if (item->isKeyframesRule())
styleSelector->addKeyframeStyle(static_cast<WebKitCSSKeyframesRule*>(item));
}
if (m_autoShrinkToFitEnabled)
shrinkToFit();
}
void RuleSet::addStyleRule(CSSStyleRule* rule)
{
if (rule->isPageRule()) {
CSSPageRule* pageRule = static_cast<CSSPageRule*>(rule);
addPageRule(pageRule, pageRule->selectorList().first());
} else {
for (CSSSelector* s = rule->selectorList().first(); s; s = CSSSelectorList::next(s))
addRule(rule, s);
}
}
static inline void collectFeaturesFromSelector(CSSStyleSelector::Features& features, const CSSSelector* selector)
{
if (selector->m_match == CSSSelector::Id && !selector->value().isEmpty())
features.idsInRules.add(selector->value().impl());
switch (selector->pseudoType()) {
case CSSSelector::PseudoFirstLine:
features.usesFirstLineRules = true;
break;
case CSSSelector::PseudoBefore:
case CSSSelector::PseudoAfter:
features.usesBeforeAfterRules = true;
break;
case CSSSelector::PseudoLink:
case CSSSelector::PseudoVisited:
features.usesLinkRules = true;
break;
default:
break;
}
}
static void collectFeaturesFromList(CSSStyleSelector::Features& features, const Vector<RuleData>& rules)
{
unsigned size = rules.size();
for (unsigned i = 0; i < size; ++i) {
const RuleData& ruleData = rules[i];
bool foundSiblingSelector = false;
for (CSSSelector* selector = ruleData.selector(); selector; selector = selector->tagHistory()) {
collectFeaturesFromSelector(features, selector);
if (CSSSelectorList* selectorList = selector->selectorList()) {
for (CSSSelector* subSelector = selectorList->first(); subSelector; subSelector = CSSSelectorList::next(subSelector)) {
if (selector->isSiblingSelector())
foundSiblingSelector = true;
collectFeaturesFromSelector(features, subSelector);
}
} else if (selector->isSiblingSelector())
foundSiblingSelector = true;
}
if (foundSiblingSelector) {
if (!features.siblingRules)
features.siblingRules = adoptPtr(new RuleSet);
features.siblingRules->addRule(ruleData.rule(), ruleData.selector());
}
}
}
void RuleSet::collectFeatures(CSSStyleSelector::Features& features) const
{
AtomRuleMap::const_iterator end = m_idRules.end();
for (AtomRuleMap::const_iterator it = m_idRules.begin(); it != end; ++it)
collectFeaturesFromList(features, *it->second);
end = m_classRules.end();
for (AtomRuleMap::const_iterator it = m_classRules.begin(); it != end; ++it)
collectFeaturesFromList(features, *it->second);
end = m_tagRules.end();
for (AtomRuleMap::const_iterator it = m_tagRules.begin(); it != end; ++it)
collectFeaturesFromList(features, *it->second);
end = m_pseudoRules.end();
for (AtomRuleMap::const_iterator it = m_pseudoRules.begin(); it != end; ++it)
collectFeaturesFromList(features, *it->second);
collectFeaturesFromList(features, m_universalRules);
}
static inline void shrinkMapVectorsToFit(RuleSet::AtomRuleMap& map)
{
RuleSet::AtomRuleMap::iterator end = map.end();
for (RuleSet::AtomRuleMap::iterator it = map.begin(); it != end; ++it)
it->second->shrinkToFit();
}
void RuleSet::shrinkToFit()
{
shrinkMapVectorsToFit(m_idRules);
shrinkMapVectorsToFit(m_classRules);
shrinkMapVectorsToFit(m_tagRules);
shrinkMapVectorsToFit(m_pseudoRules);
m_universalRules.shrinkToFit();
m_pageRules.shrinkToFit();
}
// -------------------------------------------------------------------------------------
// this is mostly boring stuff on how to apply a certain rule to the renderstyle...
static Length convertToLength(CSSPrimitiveValue* primitiveValue, RenderStyle* style, RenderStyle* rootStyle, bool toFloat, double multiplier = 1, bool *ok = 0)
{
// This function is tolerant of a null style value. The only place style is used is in
// length measurements, like 'ems' and 'px'. And in those cases style is only used
// when the units are EMS or EXS. So we will just fail in those cases.
Length l;
if (!primitiveValue) {
if (ok)
*ok = false;
} else {
int type = primitiveValue->primitiveType();
if (!style && (type == CSSPrimitiveValue::CSS_EMS || type == CSSPrimitiveValue::CSS_EXS || type == CSSPrimitiveValue::CSS_REMS)) {
if (ok)
*ok = false;
} else if (CSSPrimitiveValue::isUnitTypeLength(type)) {
if (toFloat)
l = Length(primitiveValue->computeLengthDouble(style, rootStyle, multiplier), Fixed);
else
l = Length(primitiveValue->computeLengthIntForLength(style, rootStyle, multiplier), Fixed);
}
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else if (type == CSSPrimitiveValue::CSS_NUMBER)
l = Length(primitiveValue->getDoubleValue() * 100.0, Percent);
else if (ok)
*ok = false;
}
return l;
}
static Length convertToIntLength(CSSPrimitiveValue* primitiveValue, RenderStyle* style, RenderStyle* rootStyle, double multiplier = 1, bool *ok = 0)
{
return convertToLength(primitiveValue, style, rootStyle, false, multiplier, ok);
}
static Length convertToFloatLength(CSSPrimitiveValue* primitiveValue, RenderStyle* style, RenderStyle* rootStyle, double multiplier = 1, bool *ok = 0)
{
return convertToLength(primitiveValue, style, rootStyle, true, multiplier, ok);
}
template <bool applyFirst>
void CSSStyleSelector::applyDeclarations(bool isImportant, int startIndex, int endIndex)
{
if (startIndex == -1)
return;
for (int i = startIndex; i <= endIndex; i++) {
CSSMutableStyleDeclaration* decl = m_matchedDecls[i];
CSSMutableStyleDeclaration::const_iterator end = decl->end();
for (CSSMutableStyleDeclaration::const_iterator it = decl->begin(); it != end; ++it) {
const CSSProperty& current = *it;
if (isImportant == current.isImportant()) {
int property = current.id();
if (applyFirst) {
COMPILE_ASSERT(firstCSSProperty == CSSPropertyColor, CSS_color_is_first_property);
COMPILE_ASSERT(CSSPropertyZoom == CSSPropertyColor + 14, CSS_zoom_is_end_of_first_prop_range);
COMPILE_ASSERT(CSSPropertyLineHeight == CSSPropertyZoom + 1, CSS_line_height_is_after_zoom);
// give special priority to font-xxx, color properties, etc
if (property <= CSSPropertyLineHeight) {
// we apply line-height later
if (property == CSSPropertyLineHeight)
m_lineHeightValue = current.value();
else
applyProperty(current.id(), current.value());
}
} else {
if (property > CSSPropertyLineHeight)
applyProperty(current.id(), current.value());
}
}
}
}
}
void CSSStyleSelector::matchPageRules(RuleSet* rules, bool isLeftPage, bool isFirstPage, const String& pageName)
{
m_matchedRules.clear();
if (!rules)
return;
matchPageRulesForList(rules->getPageRules(), isLeftPage, isFirstPage, pageName);
// If we didn't match any rules, we're done.
if (m_matchedRules.isEmpty())
return;
// Sort the set of matched rules.
sortMatchedRules();
// Now transfer the set of matched rules over to our list of decls.
for (unsigned i = 0; i < m_matchedRules.size(); i++)
addMatchedDeclaration(m_matchedRules[i]->rule()->declaration());
}
void CSSStyleSelector::matchPageRulesForList(const Vector<RuleData>* rules, bool isLeftPage, bool isFirstPage, const String& pageName)
{
if (!rules)
return;
unsigned size = rules->size();
for (unsigned i = 0; i < size; ++i) {
const RuleData& ruleData = rules->at(i);
CSSStyleRule* rule = ruleData.rule();
const AtomicString& selectorLocalName = ruleData.selector()->tag().localName();
if (selectorLocalName != starAtom && selectorLocalName != pageName)
continue;
CSSSelector::PseudoType pseudoType = ruleData.selector()->pseudoType();
if ((pseudoType == CSSSelector::PseudoLeftPage && !isLeftPage)
|| (pseudoType == CSSSelector::PseudoRightPage && isLeftPage)
|| (pseudoType == CSSSelector::PseudoFirstPage && !isFirstPage))
continue;
// If the rule has no properties to apply, then ignore it.
CSSMutableStyleDeclaration* decl = rule->declaration();
if (!decl || !decl->length())
continue;
// Add this rule to our list of matched rules.
addMatchedRule(&ruleData);
}
}
bool CSSStyleSelector::isLeftPage(int pageIndex) const
{
bool isFirstPageLeft = false;
if (!m_rootElementStyle->isLeftToRightDirection())
isFirstPageLeft = true;
return (pageIndex + (isFirstPageLeft ? 1 : 0)) % 2;
}
bool CSSStyleSelector::isFirstPage(int pageIndex) const
{
// FIXME: In case of forced left/right page, page at index 1 (not 0) can be the first page.
return (!pageIndex);
}
String CSSStyleSelector::pageName(int /* pageIndex */) const
{
// FIXME: Implement page index to page name mapping.
return "";
}
static void applyCounterList(RenderStyle* style, CSSValueList* list, bool isReset)
{
CounterDirectiveMap& map = style->accessCounterDirectives();
typedef CounterDirectiveMap::iterator Iterator;
Iterator end = map.end();
for (Iterator it = map.begin(); it != end; ++it)
if (isReset)
it->second.m_reset = false;
else
it->second.m_increment = false;
int length = list ? list->length() : 0;
for (int i = 0; i < length; ++i) {
CSSValue* currValue = list->itemWithoutBoundsCheck(i);
if (!currValue->isPrimitiveValue())
continue;
Pair* pair = static_cast<CSSPrimitiveValue*>(currValue)->getPairValue();
if (!pair || !pair->first() || !pair->second())
continue;
AtomicString identifier = static_cast<CSSPrimitiveValue*>(pair->first())->getStringValue();
// FIXME: What about overflow?
int value = static_cast<CSSPrimitiveValue*>(pair->second())->getIntValue();
CounterDirectives& directives = map.add(identifier.impl(), CounterDirectives()).first->second;
if (isReset) {
directives.m_reset = true;
directives.m_resetValue = value;
} else {
if (directives.m_increment)
directives.m_incrementValue += value;
else {
directives.m_increment = true;
directives.m_incrementValue = value;
}
}
}
}
void CSSStyleSelector::applyPropertyToStyle(int id, CSSValue *value, RenderStyle* style)
{
initElement(0);
initForStyleResolve(0, style);
m_style = style;
if (value)
applyProperty(id, value);
}
inline bool isValidVisitedLinkProperty(int id)
{
switch(static_cast<CSSPropertyID>(id)) {
case CSSPropertyBackgroundColor:
case CSSPropertyBorderLeftColor:
case CSSPropertyBorderRightColor:
case CSSPropertyBorderTopColor:
case CSSPropertyBorderBottomColor:
case CSSPropertyColor:
case CSSPropertyOutlineColor:
case CSSPropertyWebkitColumnRuleColor:
case CSSPropertyWebkitTextEmphasisColor:
case CSSPropertyWebkitTextFillColor:
case CSSPropertyWebkitTextStrokeColor:
// Also allow shorthands so that inherit/initial still work.
case CSSPropertyBackground:
case CSSPropertyBorderLeft:
case CSSPropertyBorderRight:
case CSSPropertyBorderTop:
case CSSPropertyBorderBottom:
case CSSPropertyOutline:
case CSSPropertyWebkitColumnRule:
#if ENABLE(SVG)
case CSSPropertyFill:
case CSSPropertyStroke:
#endif
return true;
default:
break;
}
return false;
}
// SVG handles zooming in a different way compared to CSS. The whole document is scaled instead
// of each individual length value in the render style / tree. CSSPrimitiveValue::computeLength*()
// multiplies each resolved length with the zoom multiplier - so for SVG we need to disable that.
// Though all CSS values that can be applied to outermost <svg> elements (width/height/border/padding...)
// need to respect the scaling. RenderBox (the parent class of RenderSVGRoot) grabs values like
// width/height/border/padding/... from the RenderStyle -> for SVG these values would never scale,
// if we'd pass a 1.0 zoom factor everyhwere. So we only pass a zoom factor of 1.0 for specific
// properties that are NOT allowed to scale within a zoomed SVG document (letter/word-spacing/font-size).
static inline bool useSVGZoomRules(const Element* e)
{
return e && e->isSVGElement();
}
void CSSStyleSelector::applyProperty(int id, CSSValue *value)
{
CSSPrimitiveValue* primitiveValue = 0;
if (value->isPrimitiveValue())
primitiveValue = static_cast<CSSPrimitiveValue*>(value);
float zoomFactor = m_style->effectiveZoom();
Length l;
bool apply = false;
unsigned short valueType = value->cssValueType();
bool isInherit = m_parentNode && valueType == CSSValue::CSS_INHERIT;
bool isInitial = valueType == CSSValue::CSS_INITIAL || (!m_parentNode && valueType == CSSValue::CSS_INHERIT);
id = CSSProperty::resolveDirectionAwareProperty(id, m_style->direction(), m_style->writingMode());
if (m_checker.m_matchVisitedPseudoClass && !isValidVisitedLinkProperty(id)) {
// Limit the properties that can be applied to only the ones honored by :visited.
return;
}
CSSPropertyID property = static_cast<CSSPropertyID>(id);
// check lookup table for implementations and use when available
if (m_applyProperty.implements(property)) {
if (isInherit)
m_applyProperty.applyInheritValue(property, this);
else if (isInitial)
m_applyProperty.applyInitialValue(property, this);
else
m_applyProperty.applyValue(property, this, value);
return;
}
// What follows is a list that maps the CSS properties into their corresponding front-end
// RenderStyle values. Shorthands (e.g. border, background) occur in this list as well and
// are only hit when mapping "inherit" or "initial" into front-end values.
switch (property) {
// ident only properties
case CSSPropertyBorderCollapse:
HANDLE_INHERIT_AND_INITIAL(borderCollapse, BorderCollapse)
if (!primitiveValue)
return;
switch (primitiveValue->getIdent()) {
case CSSValueCollapse:
m_style->setBorderCollapse(true);
break;
case CSSValueSeparate:
m_style->setBorderCollapse(false);
break;
default:
return;
}
return;
case CSSPropertyOutlineStyle:
HANDLE_INHERIT_AND_INITIAL_WITH_VALUE(outlineStyle, OutlineStyle, BorderStyle)
if (primitiveValue) {
if (primitiveValue->getIdent() == CSSValueAuto)
m_style->setOutlineStyle(DOTTED, true);
else
m_style->setOutlineStyle(*primitiveValue);
}
return;
case CSSPropertyCaptionSide:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(captionSide, CaptionSide)
return;
case CSSPropertyClear:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(clear, Clear)
return;
case CSSPropertyDisplay:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(display, Display)
#if ENABLE(WCSS)
if (primitiveValue) {
if (primitiveValue->getIdent() == CSSValueWapMarquee) {
// Initialize WAP Marquee style
m_style->setOverflowX(OMARQUEE);
m_style->setOverflowY(OMARQUEE);
m_style->setWhiteSpace(NOWRAP);
m_style->setMarqueeDirection(MLEFT);
m_style->setMarqueeSpeed(85); // Normal speed
m_style->setMarqueeLoopCount(1);
m_style->setMarqueeBehavior(MSCROLL);
if (m_parentStyle)
m_style->setDisplay(m_parentStyle->display());
else
m_style->setDisplay(*primitiveValue);
} else
m_style->setDisplay(*primitiveValue);
}
#endif
return;
case CSSPropertyEmptyCells:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(emptyCells, EmptyCells)
return;
case CSSPropertyFloat:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(floating, Floating)
return;
case CSSPropertyFontStyle:
{
FontDescription fontDescription = m_style->fontDescription();
if (isInherit)
fontDescription.setItalic(m_parentStyle->fontDescription().italic());
else if (isInitial)
fontDescription.setItalic(false);
else {
if (!primitiveValue)
return;
switch (primitiveValue->getIdent()) {
case CSSValueOblique:
// FIXME: oblique is the same as italic for the moment...
case CSSValueItalic:
fontDescription.setItalic(true);
break;
case CSSValueNormal:
fontDescription.setItalic(false);
break;
default:
return;
}
}
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
}
case CSSPropertyFontVariant:
{
FontDescription fontDescription = m_style->fontDescription();
if (isInherit)
fontDescription.setSmallCaps(m_parentStyle->fontDescription().smallCaps());
else if (isInitial)
fontDescription.setSmallCaps(false);
else {
if (!primitiveValue)
return;
int id = primitiveValue->getIdent();
if (id == CSSValueNormal)
fontDescription.setSmallCaps(false);
else if (id == CSSValueSmallCaps)
fontDescription.setSmallCaps(true);
else
return;
}
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
}
case CSSPropertyFontWeight:
{
FontDescription fontDescription = m_style->fontDescription();
if (isInherit)
fontDescription.setWeight(m_parentStyle->fontDescription().weight());
else if (isInitial)
fontDescription.setWeight(FontWeightNormal);
else {
if (!primitiveValue)
return;
if (primitiveValue->getIdent()) {
switch (primitiveValue->getIdent()) {
case CSSValueBolder:
fontDescription.setWeight(fontDescription.bolderWeight());
break;
case CSSValueLighter:
fontDescription.setWeight(fontDescription.lighterWeight());
break;
case CSSValueBold:
case CSSValue700:
fontDescription.setWeight(FontWeightBold);
break;
case CSSValueNormal:
case CSSValue400:
fontDescription.setWeight(FontWeightNormal);
break;
case CSSValue900:
fontDescription.setWeight(FontWeight900);
break;
case CSSValue800:
fontDescription.setWeight(FontWeight800);
break;
case CSSValue600:
fontDescription.setWeight(FontWeight600);
break;
case CSSValue500:
fontDescription.setWeight(FontWeight500);
break;
case CSSValue300:
fontDescription.setWeight(FontWeight300);
break;
case CSSValue200:
fontDescription.setWeight(FontWeight200);
break;
case CSSValue100:
fontDescription.setWeight(FontWeight100);
break;
default:
return;
}
} else
ASSERT_NOT_REACHED();
}
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
}
case CSSPropertyListStylePosition:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(listStylePosition, ListStylePosition)
return;
case CSSPropertyListStyleType:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(listStyleType, ListStyleType)
return;
case CSSPropertyPageBreakBefore:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE_WITH_VALUE(pageBreakBefore, PageBreakBefore, PageBreak)
return;
case CSSPropertyPageBreakAfter:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE_WITH_VALUE(pageBreakAfter, PageBreakAfter, PageBreak)
return;
case CSSPropertyPageBreakInside: {
HANDLE_INHERIT_AND_INITIAL_WITH_VALUE(pageBreakInside, PageBreakInside, PageBreak)
if (!primitiveValue)
return;
EPageBreak pageBreak = *primitiveValue;
if (pageBreak != PBALWAYS)
m_style->setPageBreakInside(pageBreak);
return;
}
case CSSPropertyPosition:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(position, Position)
return;
case CSSPropertyTableLayout: {
HANDLE_INHERIT_AND_INITIAL(tableLayout, TableLayout)
ETableLayout l = *primitiveValue;
if (l == TAUTO)
l = RenderStyle::initialTableLayout();
m_style->setTableLayout(l);
return;
}
case CSSPropertyUnicodeBidi:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(unicodeBidi, UnicodeBidi)
return;
case CSSPropertyTextTransform:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(textTransform, TextTransform)
return;
case CSSPropertyVisibility:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(visibility, Visibility)
return;
case CSSPropertyWhiteSpace:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(whiteSpace, WhiteSpace)
return;
case CSSPropertyBorderSpacing: {
if (isInherit) {
m_style->setHorizontalBorderSpacing(m_parentStyle->horizontalBorderSpacing());
m_style->setVerticalBorderSpacing(m_parentStyle->verticalBorderSpacing());
}
else if (isInitial) {
m_style->setHorizontalBorderSpacing(0);
m_style->setVerticalBorderSpacing(0);
}
return;
}
case CSSPropertyWebkitBorderHorizontalSpacing: {
HANDLE_INHERIT_AND_INITIAL(horizontalBorderSpacing, HorizontalBorderSpacing)
if (!primitiveValue)
return;
short spacing = primitiveValue->computeLengthShort(style(), m_rootElementStyle, zoomFactor);
m_style->setHorizontalBorderSpacing(spacing);
return;
}
case CSSPropertyWebkitBorderVerticalSpacing: {
HANDLE_INHERIT_AND_INITIAL(verticalBorderSpacing, VerticalBorderSpacing)
if (!primitiveValue)
return;
short spacing = primitiveValue->computeLengthShort(style(), m_rootElementStyle, zoomFactor);
m_style->setVerticalBorderSpacing(spacing);
return;
}
case CSSPropertyCursor:
if (isInherit) {
m_style->setCursor(m_parentStyle->cursor());
m_style->setCursorList(m_parentStyle->cursors());
return;
}
m_style->clearCursorList();
if (isInitial) {
m_style->setCursor(RenderStyle::initialCursor());
return;
}
if (value->isValueList()) {
CSSValueList* list = static_cast<CSSValueList*>(value);
int len = list->length();
m_style->setCursor(CURSOR_AUTO);
for (int i = 0; i < len; i++) {
CSSValue* item = list->itemWithoutBoundsCheck(i);
if (!item->isPrimitiveValue())
continue;
primitiveValue = static_cast<CSSPrimitiveValue*>(item);
int type = primitiveValue->primitiveType();
if (type == CSSPrimitiveValue::CSS_URI) {
if (primitiveValue->isCursorImageValue()) {
CSSCursorImageValue* image = static_cast<CSSCursorImageValue*>(primitiveValue);
if (image->updateIfSVGCursorIsUsed(m_element)) // Elements with SVG cursors are not allowed to share style.
m_style->setUnique();
m_style->addCursor(cachedOrPendingFromValue(CSSPropertyCursor, image), image->hotSpot());
}
} else if (type == CSSPrimitiveValue::CSS_IDENT)
m_style->setCursor(*primitiveValue);
}
} else if (primitiveValue) {
int type = primitiveValue->primitiveType();
if (type == CSSPrimitiveValue::CSS_IDENT && m_style->cursor() != ECursor(*primitiveValue))
m_style->setCursor(*primitiveValue);
}
return;
// uri || inherit
case CSSPropertyListStyleImage:
{
HANDLE_INHERIT_AND_INITIAL(listStyleImage, ListStyleImage)
m_style->setListStyleImage(styleImage(CSSPropertyListStyleImage, value));
return;
}
// length
case CSSPropertyBorderTopWidth:
case CSSPropertyBorderRightWidth:
case CSSPropertyBorderBottomWidth:
case CSSPropertyBorderLeftWidth:
case CSSPropertyOutlineWidth:
case CSSPropertyWebkitColumnRuleWidth:
{
if (isInherit) {
HANDLE_INHERIT_COND(CSSPropertyBorderTopWidth, borderTopWidth, BorderTopWidth)
HANDLE_INHERIT_COND(CSSPropertyBorderRightWidth, borderRightWidth, BorderRightWidth)
HANDLE_INHERIT_COND(CSSPropertyBorderBottomWidth, borderBottomWidth, BorderBottomWidth)
HANDLE_INHERIT_COND(CSSPropertyBorderLeftWidth, borderLeftWidth, BorderLeftWidth)
HANDLE_INHERIT_COND(CSSPropertyOutlineWidth, outlineWidth, OutlineWidth)
HANDLE_INHERIT_COND(CSSPropertyWebkitColumnRuleWidth, columnRuleWidth, ColumnRuleWidth)
return;
}
else if (isInitial) {
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBorderTopWidth, BorderTopWidth, BorderWidth)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBorderRightWidth, BorderRightWidth, BorderWidth)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBorderBottomWidth, BorderBottomWidth, BorderWidth)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBorderLeftWidth, BorderLeftWidth, BorderWidth)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyOutlineWidth, OutlineWidth, BorderWidth)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyWebkitColumnRuleWidth, ColumnRuleWidth, BorderWidth)
return;
}
if (!primitiveValue)
return;
short width = 3;
switch (primitiveValue->getIdent()) {
case CSSValueThin:
width = 1;
break;
case CSSValueMedium:
width = 3;
break;
case CSSValueThick:
width = 5;
break;
case CSSValueInvalid:
width = primitiveValue->computeLengthShort(style(), m_rootElementStyle, zoomFactor);
break;
default:
return;
}
if (width < 0) return;
switch (id) {
case CSSPropertyBorderTopWidth:
m_style->setBorderTopWidth(width);
break;
case CSSPropertyBorderRightWidth:
m_style->setBorderRightWidth(width);
break;
case CSSPropertyBorderBottomWidth:
m_style->setBorderBottomWidth(width);
break;
case CSSPropertyBorderLeftWidth:
m_style->setBorderLeftWidth(width);
break;
case CSSPropertyOutlineWidth:
m_style->setOutlineWidth(width);
break;
case CSSPropertyWebkitColumnRuleWidth:
m_style->setColumnRuleWidth(width);
break;
default:
return;
}
return;
}
case CSSPropertyWebkitFontSmoothing: {
FontDescription fontDescription = m_style->fontDescription();
if (isInherit)
fontDescription.setFontSmoothing(m_parentStyle->fontDescription().fontSmoothing());
else if (isInitial)
fontDescription.setFontSmoothing(AutoSmoothing);
else {
if (!primitiveValue)
return;
int id = primitiveValue->getIdent();
FontSmoothingMode smoothing;
switch (id) {
case CSSValueAuto:
smoothing = AutoSmoothing;
break;
case CSSValueNone:
smoothing = NoSmoothing;
break;
case CSSValueAntialiased:
smoothing = Antialiased;
break;
case CSSValueSubpixelAntialiased:
smoothing = SubpixelAntialiased;
break;
default:
ASSERT_NOT_REACHED();
smoothing = AutoSmoothing;
}
fontDescription.setFontSmoothing(smoothing);
}
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
}
case CSSPropertyLetterSpacing:
case CSSPropertyWordSpacing:
{
if (isInherit) {
HANDLE_INHERIT_COND(CSSPropertyLetterSpacing, letterSpacing, LetterSpacing)
HANDLE_INHERIT_COND(CSSPropertyWordSpacing, wordSpacing, WordSpacing)
return;
}
else if (isInitial) {
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyLetterSpacing, LetterSpacing, LetterWordSpacing)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyWordSpacing, WordSpacing, LetterWordSpacing)
return;
}
int width = 0;
if (primitiveValue && primitiveValue->getIdent() == CSSValueNormal) {
width = 0;
} else {
if (!primitiveValue)
return;
width = primitiveValue->computeLengthInt(style(), m_rootElementStyle, useSVGZoomRules(m_element) ? 1.0f : zoomFactor);
}
switch (id) {
case CSSPropertyLetterSpacing:
m_style->setLetterSpacing(width);
break;
case CSSPropertyWordSpacing:
m_style->setWordSpacing(width);
break;
// ### needs the definitions in renderstyle
default: break;
}
return;
}
case CSSPropertyWordBreak:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(wordBreak, WordBreak)
return;
case CSSPropertyWordWrap:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(wordWrap, WordWrap)
return;
case CSSPropertyWebkitNbspMode:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(nbspMode, NBSPMode)
return;
case CSSPropertyWebkitLineBreak:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(khtmlLineBreak, KHTMLLineBreak)
return;
case CSSPropertyWebkitMatchNearestMailBlockquoteColor:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(matchNearestMailBlockquoteColor, MatchNearestMailBlockquoteColor)
return;
case CSSPropertyResize:
{
HANDLE_INHERIT_AND_INITIAL(resize, Resize)
if (!primitiveValue->getIdent())
return;
EResize r = RESIZE_NONE;
if (primitiveValue->getIdent() == CSSValueAuto) {
if (Settings* settings = m_checker.m_document->settings())
r = settings->textAreasAreResizable() ? RESIZE_BOTH : RESIZE_NONE;
} else
r = *primitiveValue;
m_style->setResize(r);
return;
}
// length, percent
case CSSPropertyMaxWidth:
// +none +inherit
if (primitiveValue && primitiveValue->getIdent() == CSSValueNone) {
l = Length(undefinedLength, Fixed);
apply = true;
}
case CSSPropertyTop:
case CSSPropertyLeft:
case CSSPropertyRight:
case CSSPropertyBottom:
case CSSPropertyWidth:
case CSSPropertyMinWidth:
case CSSPropertyMarginTop:
case CSSPropertyMarginRight:
case CSSPropertyMarginBottom:
case CSSPropertyMarginLeft:
// +inherit +auto
if (id == CSSPropertyWidth || id == CSSPropertyMinWidth || id == CSSPropertyMaxWidth) {
if (primitiveValue && primitiveValue->getIdent() == CSSValueIntrinsic) {
l = Length(Intrinsic);
apply = true;
}
else if (primitiveValue && primitiveValue->getIdent() == CSSValueMinIntrinsic) {
l = Length(MinIntrinsic);
apply = true;
}
}
if (id != CSSPropertyMaxWidth && primitiveValue && primitiveValue->getIdent() == CSSValueAuto)
apply = true;
case CSSPropertyPaddingTop:
case CSSPropertyPaddingRight:
case CSSPropertyPaddingBottom:
case CSSPropertyPaddingLeft:
case CSSPropertyTextIndent:
// +inherit
{
if (isInherit) {
HANDLE_INHERIT_COND(CSSPropertyMaxWidth, maxWidth, MaxWidth)
HANDLE_INHERIT_COND(CSSPropertyBottom, bottom, Bottom)
HANDLE_INHERIT_COND(CSSPropertyTop, top, Top)
HANDLE_INHERIT_COND(CSSPropertyLeft, left, Left)
HANDLE_INHERIT_COND(CSSPropertyRight, right, Right)
HANDLE_INHERIT_COND(CSSPropertyWidth, width, Width)
HANDLE_INHERIT_COND(CSSPropertyMinWidth, minWidth, MinWidth)
HANDLE_INHERIT_COND(CSSPropertyPaddingTop, paddingTop, PaddingTop)
HANDLE_INHERIT_COND(CSSPropertyPaddingRight, paddingRight, PaddingRight)
HANDLE_INHERIT_COND(CSSPropertyPaddingBottom, paddingBottom, PaddingBottom)
HANDLE_INHERIT_COND(CSSPropertyPaddingLeft, paddingLeft, PaddingLeft)
HANDLE_INHERIT_COND(CSSPropertyMarginTop, marginTop, MarginTop)
HANDLE_INHERIT_COND(CSSPropertyMarginRight, marginRight, MarginRight)
HANDLE_INHERIT_COND(CSSPropertyMarginBottom, marginBottom, MarginBottom)
HANDLE_INHERIT_COND(CSSPropertyMarginLeft, marginLeft, MarginLeft)
HANDLE_INHERIT_COND(CSSPropertyTextIndent, textIndent, TextIndent)
return;
}
else if (isInitial) {
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyMaxWidth, MaxWidth, MaxSize)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBottom, Bottom, Offset)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyTop, Top, Offset)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyLeft, Left, Offset)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyRight, Right, Offset)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyWidth, Width, Size)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyMinWidth, MinWidth, MinSize)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyPaddingTop, PaddingTop, Padding)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyPaddingRight, PaddingRight, Padding)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyPaddingBottom, PaddingBottom, Padding)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyPaddingLeft, PaddingLeft, Padding)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyMarginTop, MarginTop, Margin)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyMarginRight, MarginRight, Margin)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyMarginBottom, MarginBottom, Margin)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyMarginLeft, MarginLeft, Margin)
HANDLE_INITIAL_COND(CSSPropertyTextIndent, TextIndent)
return;
}
if (primitiveValue && !apply) {
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
// Handle our quirky margin units if we have them.
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed,
primitiveValue->isQuirkValue());
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else
return;
apply = true;
}
if (!apply) return;
switch (id) {
case CSSPropertyMaxWidth:
m_style->setMaxWidth(l);
break;
case CSSPropertyBottom:
m_style->setBottom(l);
break;
case CSSPropertyTop:
m_style->setTop(l);
break;
case CSSPropertyLeft:
m_style->setLeft(l);
break;
case CSSPropertyRight:
m_style->setRight(l);
break;
case CSSPropertyWidth:
m_style->setWidth(l);
break;
case CSSPropertyMinWidth:
m_style->setMinWidth(l);
break;
case CSSPropertyPaddingTop:
m_style->setPaddingTop(l);
break;
case CSSPropertyPaddingRight:
m_style->setPaddingRight(l);
break;
case CSSPropertyPaddingBottom:
m_style->setPaddingBottom(l);
break;
case CSSPropertyPaddingLeft:
m_style->setPaddingLeft(l);
break;
case CSSPropertyMarginTop:
m_style->setMarginTop(l);
break;
case CSSPropertyMarginRight:
m_style->setMarginRight(l);
break;
case CSSPropertyMarginBottom:
m_style->setMarginBottom(l);
break;
case CSSPropertyMarginLeft:
m_style->setMarginLeft(l);
break;
case CSSPropertyTextIndent:
m_style->setTextIndent(l);
break;
default:
break;
}
return;
}
case CSSPropertyMaxHeight:
if (primitiveValue && primitiveValue->getIdent() == CSSValueNone) {
l = Length(undefinedLength, Fixed);
apply = true;
}
case CSSPropertyHeight:
case CSSPropertyMinHeight:
if (primitiveValue && primitiveValue->getIdent() == CSSValueIntrinsic) {
l = Length(Intrinsic);
apply = true;
} else if (primitiveValue && primitiveValue->getIdent() == CSSValueMinIntrinsic) {
l = Length(MinIntrinsic);
apply = true;
} else if (id != CSSPropertyMaxHeight && primitiveValue && primitiveValue->getIdent() == CSSValueAuto)
apply = true;
if (isInherit) {
HANDLE_INHERIT_COND(CSSPropertyMaxHeight, maxHeight, MaxHeight)
HANDLE_INHERIT_COND(CSSPropertyHeight, height, Height)
HANDLE_INHERIT_COND(CSSPropertyMinHeight, minHeight, MinHeight)
return;
}
if (isInitial) {
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyMaxHeight, MaxHeight, MaxSize)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyHeight, Height, Size)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyMinHeight, MinHeight, MinSize)
return;
}
if (primitiveValue && !apply) {
unsigned short type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else
return;
apply = true;
}
if (apply)
switch (id) {
case CSSPropertyMaxHeight:
m_style->setMaxHeight(l);
break;
case CSSPropertyHeight:
m_style->setHeight(l);
break;
case CSSPropertyMinHeight:
m_style->setMinHeight(l);
break;
}
return;
case CSSPropertyVerticalAlign:
HANDLE_INHERIT_AND_INITIAL(verticalAlign, VerticalAlign)
if (!primitiveValue)
return;
if (primitiveValue->getIdent()) {
EVerticalAlign align;
switch (primitiveValue->getIdent()) {
case CSSValueTop:
align = TOP; break;
case CSSValueBottom:
align = BOTTOM; break;
case CSSValueMiddle:
align = MIDDLE; break;
case CSSValueBaseline:
align = BASELINE; break;
case CSSValueTextBottom:
align = TEXT_BOTTOM; break;
case CSSValueTextTop:
align = TEXT_TOP; break;
case CSSValueSub:
align = SUB; break;
case CSSValueSuper:
align = SUPER; break;
case CSSValueWebkitBaselineMiddle:
align = BASELINE_MIDDLE; break;
default:
return;
}
m_style->setVerticalAlign(align);
return;
} else {
int type = primitiveValue->primitiveType();
Length l;
if (CSSPrimitiveValue::isUnitTypeLength(type))
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
m_style->setVerticalAlign(LENGTH);
m_style->setVerticalAlignLength(l);
}
return;
case CSSPropertyFontSize:
{
FontDescription fontDescription = m_style->fontDescription();
fontDescription.setKeywordSize(0);
float oldSize = 0;
float size = 0;
bool parentIsAbsoluteSize = false;
if (m_parentNode) {
oldSize = m_parentStyle->fontDescription().specifiedSize();
parentIsAbsoluteSize = m_parentStyle->fontDescription().isAbsoluteSize();
}
if (isInherit) {
size = oldSize;
if (m_parentNode)
fontDescription.setKeywordSize(m_parentStyle->fontDescription().keywordSize());
} else if (isInitial) {
size = fontSizeForKeyword(m_checker.m_document, CSSValueMedium, fontDescription.useFixedDefaultSize());
fontDescription.setKeywordSize(CSSValueMedium - CSSValueXxSmall + 1);
} else if (primitiveValue->getIdent()) {
// Keywords are being used.
switch (primitiveValue->getIdent()) {
case CSSValueXxSmall:
case CSSValueXSmall:
case CSSValueSmall:
case CSSValueMedium:
case CSSValueLarge:
case CSSValueXLarge:
case CSSValueXxLarge:
case CSSValueWebkitXxxLarge:
size = fontSizeForKeyword(m_checker.m_document, primitiveValue->getIdent(), fontDescription.useFixedDefaultSize());
fontDescription.setKeywordSize(primitiveValue->getIdent() - CSSValueXxSmall + 1);
break;
case CSSValueLarger:
size = largerFontSize(oldSize, m_checker.m_document->inQuirksMode());
break;
case CSSValueSmaller:
size = smallerFontSize(oldSize, m_checker.m_document->inQuirksMode());
break;
default:
return;
}
fontDescription.setIsAbsoluteSize(parentIsAbsoluteSize &&
(primitiveValue->getIdent() == CSSValueLarger ||
primitiveValue->getIdent() == CSSValueSmaller));
} else {
int type = primitiveValue->primitiveType();
fontDescription.setIsAbsoluteSize(parentIsAbsoluteSize ||
(type != CSSPrimitiveValue::CSS_PERCENTAGE &&
type != CSSPrimitiveValue::CSS_EMS &&
type != CSSPrimitiveValue::CSS_EXS &&
type != CSSPrimitiveValue::CSS_REMS));
if (CSSPrimitiveValue::isUnitTypeLength(type))
size = primitiveValue->computeLengthFloat(m_parentStyle, m_rootElementStyle, true);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
size = (primitiveValue->getFloatValue() * oldSize) / 100.0f;
else
return;
}
if (size < 0)
return;
setFontSize(fontDescription, size);
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
}
case CSSPropertyZIndex: {
if (isInherit) {
if (m_parentStyle->hasAutoZIndex())
m_style->setHasAutoZIndex();
else
m_style->setZIndex(m_parentStyle->zIndex());
return;
} else if (isInitial || primitiveValue->getIdent() == CSSValueAuto) {
m_style->setHasAutoZIndex();
return;
}
// FIXME: Should clamp all sorts of other integer properties too.
m_style->setZIndex(clampToInteger(primitiveValue->getDoubleValue()));
return;
}
case CSSPropertyWidows:
{
HANDLE_INHERIT_AND_INITIAL(widows, Widows)
if (!primitiveValue || primitiveValue->primitiveType() != CSSPrimitiveValue::CSS_NUMBER)
return;
m_style->setWidows(primitiveValue->getIntValue());
return;
}
case CSSPropertyOrphans:
{
HANDLE_INHERIT_AND_INITIAL(orphans, Orphans)
if (!primitiveValue || primitiveValue->primitiveType() != CSSPrimitiveValue::CSS_NUMBER)
return;
m_style->setOrphans(primitiveValue->getIntValue());
return;
}
// length, percent, number
case CSSPropertyLineHeight:
{
HANDLE_INHERIT_AND_INITIAL(lineHeight, LineHeight)
if (!primitiveValue)
return;
Length lineHeight;
int type = primitiveValue->primitiveType();
if (primitiveValue->getIdent() == CSSValueNormal)
lineHeight = Length(-100.0, Percent);
else if (CSSPrimitiveValue::isUnitTypeLength(type)) {
double multiplier = zoomFactor;
if (m_style->textSizeAdjust()) {
if (Frame* frame = m_checker.m_document->frame())
multiplier *= frame->textZoomFactor();
}
lineHeight = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, multiplier), Fixed);
} else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
lineHeight = Length((m_style->fontSize() * primitiveValue->getIntValue()) / 100, Fixed);
else if (type == CSSPrimitiveValue::CSS_NUMBER)
lineHeight = Length(primitiveValue->getDoubleValue() * 100.0, Percent);
else
return;
m_style->setLineHeight(lineHeight);
return;
}
// string
case CSSPropertyTextAlign:
{
HANDLE_INHERIT_AND_INITIAL(textAlign, TextAlign)
if (!primitiveValue)
return;
if (primitiveValue->getIdent() == CSSValueWebkitMatchParent) {
if (m_parentStyle->textAlign() == TASTART)
m_style->setTextAlign(m_parentStyle->isLeftToRightDirection() ? LEFT : RIGHT);
else if (m_parentStyle->textAlign() == TAEND)
m_style->setTextAlign(m_parentStyle->isLeftToRightDirection() ? RIGHT : LEFT);
else
m_style->setTextAlign(m_parentStyle->textAlign());
return;
}
m_style->setTextAlign(*primitiveValue);
return;
}
// rect
case CSSPropertyClip:
{
Length top;
Length right;
Length bottom;
Length left;
bool hasClip = true;
if (isInherit) {
if (m_parentStyle->hasClip()) {
top = m_parentStyle->clipTop();
right = m_parentStyle->clipRight();
bottom = m_parentStyle->clipBottom();
left = m_parentStyle->clipLeft();
} else {
hasClip = false;
top = right = bottom = left = Length();
}
} else if (isInitial) {
hasClip = false;
top = right = bottom = left = Length();
} else if (!primitiveValue) {
return;
} else if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_RECT) {
Rect* rect = primitiveValue->getRectValue();
if (!rect)
return;
top = convertToIntLength(rect->top(), style(), m_rootElementStyle, zoomFactor);
right = convertToIntLength(rect->right(), style(), m_rootElementStyle, zoomFactor);
bottom = convertToIntLength(rect->bottom(), style(), m_rootElementStyle, zoomFactor);
left = convertToIntLength(rect->left(), style(), m_rootElementStyle, zoomFactor);
} else if (primitiveValue->getIdent() != CSSValueAuto) {
return;
}
m_style->setClip(top, right, bottom, left);
m_style->setHasClip(hasClip);
// rect, ident
return;
}
// lists
case CSSPropertyContent:
// list of string, uri, counter, attr, i
{
// FIXME: In CSS3, it will be possible to inherit content. In CSS2 it is not. This
// note is a reminder that eventually "inherit" needs to be supported.
if (isInitial) {
m_style->clearContent();
return;
}
if (!value->isValueList())
return;
CSSValueList* list = static_cast<CSSValueList*>(value);
int len = list->length();
bool didSet = false;
for (int i = 0; i < len; i++) {
CSSValue* item = list->itemWithoutBoundsCheck(i);
if (item->isImageGeneratorValue()) {
m_style->setContent(static_cast<CSSImageGeneratorValue*>(item)->generatedImage(), didSet);
didSet = true;
}
if (!item->isPrimitiveValue())
continue;
CSSPrimitiveValue* contentValue = static_cast<CSSPrimitiveValue*>(item);
switch (contentValue->primitiveType()) {
case CSSPrimitiveValue::CSS_STRING:
m_style->setContent(contentValue->getStringValue().impl(), didSet);
didSet = true;
break;
case CSSPrimitiveValue::CSS_ATTR: {
// FIXME: Can a namespace be specified for an attr(foo)?
if (m_style->styleType() == NOPSEUDO)
m_style->setUnique();
else
m_parentStyle->setUnique();
QualifiedName attr(nullAtom, contentValue->getStringValue().impl(), nullAtom);
m_style->setContent(m_element->getAttribute(attr).impl(), didSet);
didSet = true;
// register the fact that the attribute value affects the style
m_selectorAttrs.add(attr.localName().impl());
break;
}
case CSSPrimitiveValue::CSS_URI: {
if (!contentValue->isImageValue())
break;
m_style->setContent(cachedOrPendingFromValue(CSSPropertyContent, static_cast<CSSImageValue*>(contentValue)), didSet);
didSet = true;
break;
}
case CSSPrimitiveValue::CSS_COUNTER: {
Counter* counterValue = contentValue->getCounterValue();
OwnPtr<CounterContent> counter = adoptPtr(new CounterContent(counterValue->identifier(),
(EListStyleType)counterValue->listStyleNumber(), counterValue->separator()));
m_style->setContent(counter.release(), didSet);
didSet = true;
break;
}
case CSSPrimitiveValue::CSS_IDENT:
switch (contentValue->getIdent()) {
case CSSValueOpenQuote:
m_style->setContent(OPEN_QUOTE, didSet);
didSet = true;
break;
case CSSValueCloseQuote:
m_style->setContent(CLOSE_QUOTE, didSet);
didSet = true;
break;
case CSSValueNoOpenQuote:
m_style->setContent(NO_OPEN_QUOTE, didSet);
didSet = true;
break;
case CSSValueNoCloseQuote:
m_style->setContent(NO_CLOSE_QUOTE, didSet);
didSet = true;
break;
default:
// normal and none do not have any effect.
{}
}
}
}
if (!didSet)
m_style->clearContent();
return;
}
case CSSPropertyQuotes:
if (isInherit) {
if (m_parentStyle)
m_style->setQuotes(m_parentStyle->quotes());
return;
}
if (isInitial) {
m_style->setQuotes(0);
return;
}
if (value->isValueList()) {
CSSValueList* list = static_cast<CSSValueList*>(value);
size_t length = list->length();
QuotesData* data = QuotesData::create(length);
if (!data)
return; // Out of memory
String* quotes = data->data();
for (size_t i = 0; i < length; i++) {
CSSValue* item = list->itemWithoutBoundsCheck(i);
ASSERT(item->isPrimitiveValue());
primitiveValue = static_cast<CSSPrimitiveValue*>(item);
ASSERT(primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_STRING);
quotes[i] = primitiveValue->getStringValue();
}
m_style->setQuotes(adoptRef(data));
} else if (primitiveValue) {
ASSERT(primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_IDENT);
if (primitiveValue->getIdent() == CSSValueNone)
m_style->setQuotes(adoptRef(QuotesData::create(0)));
}
return;
case CSSPropertyCounterIncrement:
applyCounterList(style(), value->isValueList() ? static_cast<CSSValueList*>(value) : 0, false);
return;
case CSSPropertyCounterReset:
applyCounterList(style(), value->isValueList() ? static_cast<CSSValueList*>(value) : 0, true);
return;
case CSSPropertyFontFamily: {
// list of strings and ids
if (isInherit) {
FontDescription parentFontDescription = m_parentStyle->fontDescription();
FontDescription fontDescription = m_style->fontDescription();
fontDescription.setGenericFamily(parentFontDescription.genericFamily());
fontDescription.setFamily(parentFontDescription.firstFamily());
fontDescription.setIsSpecifiedFont(parentFontDescription.isSpecifiedFont());
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
} else if (isInitial) {
FontDescription initialDesc = FontDescription();
FontDescription fontDescription = m_style->fontDescription();
// We need to adjust the size to account for the generic family change from monospace
// to non-monospace.
if (fontDescription.keywordSize() && fontDescription.useFixedDefaultSize())
setFontSize(fontDescription, fontSizeForKeyword(m_checker.m_document, CSSValueXxSmall + fontDescription.keywordSize() - 1, false));
fontDescription.setGenericFamily(initialDesc.genericFamily());
if (!initialDesc.firstFamily().familyIsEmpty())
fontDescription.setFamily(initialDesc.firstFamily());
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
}
if (!value->isValueList())
return;
FontDescription fontDescription = m_style->fontDescription();
CSSValueList* list = static_cast<CSSValueList*>(value);
int len = list->length();
FontFamily& firstFamily = fontDescription.firstFamily();
FontFamily* currFamily = 0;
// Before mapping in a new font-family property, we should reset the generic family.
bool oldFamilyUsedFixedDefaultSize = fontDescription.useFixedDefaultSize();
fontDescription.setGenericFamily(FontDescription::NoFamily);
for (int i = 0; i < len; i++) {
CSSValue* item = list->itemWithoutBoundsCheck(i);
if (!item->isPrimitiveValue())
continue;
CSSPrimitiveValue* contentValue = static_cast<CSSPrimitiveValue*>(item);
AtomicString face;
Settings* settings = m_checker.m_document->settings();
if (contentValue->primitiveType() == CSSPrimitiveValue::CSS_STRING) {
if (contentValue->isFontFamilyValue())
face = static_cast<FontFamilyValue*>(contentValue)->familyName();
} else if (contentValue->primitiveType() == CSSPrimitiveValue::CSS_IDENT && settings) {
switch (contentValue->getIdent()) {
case CSSValueWebkitBody:
face = settings->standardFontFamily();
break;
case CSSValueSerif:
face = "-webkit-serif";
fontDescription.setGenericFamily(FontDescription::SerifFamily);
break;
case CSSValueSansSerif:
face = "-webkit-sans-serif";
fontDescription.setGenericFamily(FontDescription::SansSerifFamily);
break;
case CSSValueCursive:
face = "-webkit-cursive";
fontDescription.setGenericFamily(FontDescription::CursiveFamily);
break;
case CSSValueFantasy:
face = "-webkit-fantasy";
fontDescription.setGenericFamily(FontDescription::FantasyFamily);
break;
case CSSValueMonospace:
face = "-webkit-monospace";
fontDescription.setGenericFamily(FontDescription::MonospaceFamily);
break;
}
}
if (!face.isEmpty()) {
if (!currFamily) {
// Filling in the first family.
firstFamily.setFamily(face);
firstFamily.appendFamily(0); // Remove any inherited family-fallback list.
currFamily = &firstFamily;
fontDescription.setIsSpecifiedFont(fontDescription.genericFamily() == FontDescription::NoFamily);
} else {
RefPtr<SharedFontFamily> newFamily = SharedFontFamily::create();
newFamily->setFamily(face);
currFamily->appendFamily(newFamily);
currFamily = newFamily.get();
}
}
}
// We can't call useFixedDefaultSize() until all new font families have been added
// If currFamily is non-zero then we set at least one family on this description.
if (currFamily) {
if (fontDescription.keywordSize() && fontDescription.useFixedDefaultSize() != oldFamilyUsedFixedDefaultSize)
setFontSize(fontDescription, fontSizeForKeyword(m_checker.m_document, CSSValueXxSmall + fontDescription.keywordSize() - 1, !oldFamilyUsedFixedDefaultSize));
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
}
return;
}
case CSSPropertyTextDecoration: {
// list of ident
HANDLE_INHERIT_AND_INITIAL(textDecoration, TextDecoration)
int t = RenderStyle::initialTextDecoration();
if (primitiveValue && primitiveValue->getIdent() == CSSValueNone) {
// do nothing
} else {
if (!value->isValueList())
return;
CSSValueList *list = static_cast<CSSValueList*>(value);
int len = list->length();
for (int i = 0; i < len; i++)
{
CSSValue *item = list->itemWithoutBoundsCheck(i);
if (!item->isPrimitiveValue())
continue;
primitiveValue = static_cast<CSSPrimitiveValue*>(item);
switch (primitiveValue->getIdent()) {
case CSSValueNone:
t = TDNONE; break;
case CSSValueUnderline:
t |= UNDERLINE; break;
case CSSValueOverline:
t |= OVERLINE; break;
case CSSValueLineThrough:
t |= LINE_THROUGH; break;
case CSSValueBlink:
t |= BLINK; break;
default:
return;
}
}
}
m_style->setTextDecoration(t);
return;
}
case CSSPropertyZoom:
{
// Reset the zoom in effect before we do anything. This allows the setZoom method to accurately compute a new
// zoom in effect.
m_style->setEffectiveZoom(m_parentStyle ? m_parentStyle->effectiveZoom() : RenderStyle::initialZoom());
// Now we can handle inherit and initial.
HANDLE_INHERIT_AND_INITIAL(zoom, Zoom)
// Handle normal/reset, numbers and percentages.
int type = primitiveValue->primitiveType();
if (primitiveValue->getIdent() == CSSValueNormal)
m_style->setZoom(RenderStyle::initialZoom());
else if (primitiveValue->getIdent() == CSSValueReset) {
m_style->setEffectiveZoom(RenderStyle::initialZoom());
m_style->setZoom(RenderStyle::initialZoom());
} else if (primitiveValue->getIdent() == CSSValueDocument) {
float docZoom = m_checker.m_document->renderer()->style()->zoom();
m_style->setEffectiveZoom(docZoom);
m_style->setZoom(docZoom);
} else if (type == CSSPrimitiveValue::CSS_PERCENTAGE) {
if (primitiveValue->getFloatValue())
m_style->setZoom(primitiveValue->getFloatValue() / 100.0f);
} else if (type == CSSPrimitiveValue::CSS_NUMBER) {
if (primitiveValue->getFloatValue())
m_style->setZoom(primitiveValue->getFloatValue());
}
m_fontDirty = true;
return;
}
// shorthand properties
case CSSPropertyBackground:
if (isInitial) {
m_style->clearBackgroundLayers();
m_style->setBackgroundColor(Color());
}
else if (isInherit) {
m_style->inheritBackgroundLayers(*m_parentStyle->backgroundLayers());
m_style->setBackgroundColor(m_parentStyle->backgroundColor());
}
return;
case CSSPropertyWebkitMask:
if (isInitial)
m_style->clearMaskLayers();
else if (isInherit)
m_style->inheritMaskLayers(*m_parentStyle->maskLayers());
return;
case CSSPropertyBorder:
case CSSPropertyBorderStyle:
case CSSPropertyBorderWidth:
case CSSPropertyBorderColor:
if (id == CSSPropertyBorder || id == CSSPropertyBorderColor)
{
if (isInherit) {
m_style->setBorderTopColor(m_parentStyle->borderTopColor().isValid() ? m_parentStyle->borderTopColor() : m_parentStyle->color());
m_style->setBorderBottomColor(m_parentStyle->borderBottomColor().isValid() ? m_parentStyle->borderBottomColor() : m_parentStyle->color());
m_style->setBorderLeftColor(m_parentStyle->borderLeftColor().isValid() ? m_parentStyle->borderLeftColor() : m_parentStyle->color());
m_style->setBorderRightColor(m_parentStyle->borderRightColor().isValid() ? m_parentStyle->borderRightColor(): m_parentStyle->color());
}
else if (isInitial) {
m_style->setBorderTopColor(Color()); // Reset to invalid color so currentColor is used instead.
m_style->setBorderBottomColor(Color());
m_style->setBorderLeftColor(Color());
m_style->setBorderRightColor(Color());
}
}
if (id == CSSPropertyBorder || id == CSSPropertyBorderStyle)
{
if (isInherit) {
m_style->setBorderTopStyle(m_parentStyle->borderTopStyle());
m_style->setBorderBottomStyle(m_parentStyle->borderBottomStyle());
m_style->setBorderLeftStyle(m_parentStyle->borderLeftStyle());
m_style->setBorderRightStyle(m_parentStyle->borderRightStyle());
}
else if (isInitial) {
m_style->setBorderTopStyle(RenderStyle::initialBorderStyle());
m_style->setBorderBottomStyle(RenderStyle::initialBorderStyle());
m_style->setBorderLeftStyle(RenderStyle::initialBorderStyle());
m_style->setBorderRightStyle(RenderStyle::initialBorderStyle());
}
}
if (id == CSSPropertyBorder || id == CSSPropertyBorderWidth)
{
if (isInherit) {
m_style->setBorderTopWidth(m_parentStyle->borderTopWidth());
m_style->setBorderBottomWidth(m_parentStyle->borderBottomWidth());
m_style->setBorderLeftWidth(m_parentStyle->borderLeftWidth());
m_style->setBorderRightWidth(m_parentStyle->borderRightWidth());
}
else if (isInitial) {
m_style->setBorderTopWidth(RenderStyle::initialBorderWidth());
m_style->setBorderBottomWidth(RenderStyle::initialBorderWidth());
m_style->setBorderLeftWidth(RenderStyle::initialBorderWidth());
m_style->setBorderRightWidth(RenderStyle::initialBorderWidth());
}
}
return;
case CSSPropertyBorderTop:
if (isInherit) {
m_style->setBorderTopColor(m_parentStyle->borderTopColor().isValid() ? m_parentStyle->borderTopColor() : m_parentStyle->color());
m_style->setBorderTopStyle(m_parentStyle->borderTopStyle());
m_style->setBorderTopWidth(m_parentStyle->borderTopWidth());
}
else if (isInitial)
m_style->resetBorderTop();
return;
case CSSPropertyBorderRight:
if (isInherit) {
m_style->setBorderRightColor(m_parentStyle->borderRightColor().isValid() ? m_parentStyle->borderRightColor() : m_parentStyle->color());
m_style->setBorderRightStyle(m_parentStyle->borderRightStyle());
m_style->setBorderRightWidth(m_parentStyle->borderRightWidth());
}
else if (isInitial)
m_style->resetBorderRight();
return;
case CSSPropertyBorderBottom:
if (isInherit) {
m_style->setBorderBottomColor(m_parentStyle->borderBottomColor().isValid() ? m_parentStyle->borderBottomColor() : m_parentStyle->color());
m_style->setBorderBottomStyle(m_parentStyle->borderBottomStyle());
m_style->setBorderBottomWidth(m_parentStyle->borderBottomWidth());
}
else if (isInitial)
m_style->resetBorderBottom();
return;
case CSSPropertyBorderLeft:
if (isInherit) {
m_style->setBorderLeftColor(m_parentStyle->borderLeftColor().isValid() ? m_parentStyle->borderLeftColor() : m_parentStyle->color());
m_style->setBorderLeftStyle(m_parentStyle->borderLeftStyle());
m_style->setBorderLeftWidth(m_parentStyle->borderLeftWidth());
}
else if (isInitial)
m_style->resetBorderLeft();
return;
case CSSPropertyMargin:
if (isInherit) {
m_style->setMarginTop(m_parentStyle->marginTop());
m_style->setMarginBottom(m_parentStyle->marginBottom());
m_style->setMarginLeft(m_parentStyle->marginLeft());
m_style->setMarginRight(m_parentStyle->marginRight());
}
else if (isInitial)
m_style->resetMargin();
return;
case CSSPropertyPadding:
if (isInherit) {
m_style->setPaddingTop(m_parentStyle->paddingTop());
m_style->setPaddingBottom(m_parentStyle->paddingBottom());
m_style->setPaddingLeft(m_parentStyle->paddingLeft());
m_style->setPaddingRight(m_parentStyle->paddingRight());
}
else if (isInitial)
m_style->resetPadding();
return;
case CSSPropertyFont:
if (isInherit) {
FontDescription fontDescription = m_parentStyle->fontDescription();
m_style->setLineHeight(m_parentStyle->lineHeight());
m_lineHeightValue = 0;
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
} else if (isInitial) {
Settings* settings = m_checker.m_document->settings();
ASSERT(settings); // If we're doing style resolution, this document should always be in a frame and thus have settings
if (!settings)
return;
FontDescription fontDescription;
fontDescription.setGenericFamily(FontDescription::StandardFamily);
fontDescription.setRenderingMode(settings->fontRenderingMode());
fontDescription.setUsePrinterFont(m_checker.m_document->printing());
const AtomicString& standardFontFamily = m_checker.m_document->settings()->standardFontFamily();
if (!standardFontFamily.isEmpty()) {
fontDescription.firstFamily().setFamily(standardFontFamily);
fontDescription.firstFamily().appendFamily(0);
}
fontDescription.setKeywordSize(CSSValueMedium - CSSValueXxSmall + 1);
setFontSize(fontDescription, fontSizeForKeyword(m_checker.m_document, CSSValueMedium, false));
m_style->setLineHeight(RenderStyle::initialLineHeight());
m_lineHeightValue = 0;
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
} else if (primitiveValue) {
m_style->setLineHeight(RenderStyle::initialLineHeight());
m_lineHeightValue = 0;
FontDescription fontDescription;
RenderTheme::defaultTheme()->systemFont(primitiveValue->getIdent(), fontDescription);
// Double-check and see if the theme did anything. If not, don't bother updating the font.
if (fontDescription.isAbsoluteSize()) {
// Make sure the rendering mode and printer font settings are updated.
Settings* settings = m_checker.m_document->settings();
ASSERT(settings); // If we're doing style resolution, this document should always be in a frame and thus have settings
if (!settings)
return;
fontDescription.setRenderingMode(settings->fontRenderingMode());
fontDescription.setUsePrinterFont(m_checker.m_document->printing());
// Handle the zoom factor.
fontDescription.setComputedSize(getComputedSizeFromSpecifiedSize(m_checker.m_document, m_style.get(), fontDescription.isAbsoluteSize(), fontDescription.specifiedSize(), useSVGZoomRules(m_element)));
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
}
} else if (value->isFontValue()) {
FontValue *font = static_cast<FontValue*>(value);
if (!font->style || !font->variant || !font->weight ||
!font->size || !font->lineHeight || !font->family)
return;
applyProperty(CSSPropertyFontStyle, font->style.get());
applyProperty(CSSPropertyFontVariant, font->variant.get());
applyProperty(CSSPropertyFontWeight, font->weight.get());
// The previous properties can dirty our font but they don't try to read the font's
// properties back, which is safe. However if font-size is using the 'ex' unit, it will
// need query the dirtied font's x-height to get the computed size. To be safe in this
// case, let's just update the font now.
updateFont();
applyProperty(CSSPropertyFontSize, font->size.get());
m_lineHeightValue = font->lineHeight.get();
applyProperty(CSSPropertyFontFamily, font->family.get());
}
return;
case CSSPropertyListStyle:
if (isInherit) {
m_style->setListStyleType(m_parentStyle->listStyleType());
m_style->setListStyleImage(m_parentStyle->listStyleImage());
m_style->setListStylePosition(m_parentStyle->listStylePosition());
}
else if (isInitial) {
m_style->setListStyleType(RenderStyle::initialListStyleType());
m_style->setListStyleImage(RenderStyle::initialListStyleImage());
m_style->setListStylePosition(RenderStyle::initialListStylePosition());
}
return;
case CSSPropertyOutline:
if (isInherit) {
m_style->setOutlineWidth(m_parentStyle->outlineWidth());
m_style->setOutlineColor(m_parentStyle->outlineColor().isValid() ? m_parentStyle->outlineColor() : m_parentStyle->color());
m_style->setOutlineStyle(m_parentStyle->outlineStyle());
}
else if (isInitial)
m_style->resetOutline();
return;
// CSS3 Properties
case CSSPropertyWebkitAppearance: {
HANDLE_INHERIT_AND_INITIAL(appearance, Appearance)
if (!primitiveValue)
return;
m_style->setAppearance(*primitiveValue);
return;
}
case CSSPropertyWebkitBorderImage:
case CSSPropertyWebkitMaskBoxImage: {
if (isInherit) {
HANDLE_INHERIT_COND(CSSPropertyWebkitBorderImage, borderImage, BorderImage)
HANDLE_INHERIT_COND(CSSPropertyWebkitMaskBoxImage, maskBoxImage, MaskBoxImage)
return;
} else if (isInitial) {
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyWebkitBorderImage, BorderImage, NinePieceImage)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyWebkitMaskBoxImage, MaskBoxImage, NinePieceImage)
return;
}
NinePieceImage image;
mapNinePieceImage(property, value, image);
if (id == CSSPropertyWebkitBorderImage)
m_style->setBorderImage(image);
else
m_style->setMaskBoxImage(image);
return;
}
case CSSPropertyBorderRadius:
case CSSPropertyWebkitBorderRadius:
if (isInherit) {
m_style->setBorderTopLeftRadius(m_parentStyle->borderTopLeftRadius());
m_style->setBorderTopRightRadius(m_parentStyle->borderTopRightRadius());
m_style->setBorderBottomLeftRadius(m_parentStyle->borderBottomLeftRadius());
m_style->setBorderBottomRightRadius(m_parentStyle->borderBottomRightRadius());
return;
}
if (isInitial) {
m_style->resetBorderRadius();
return;
}
// Fall through
case CSSPropertyBorderTopLeftRadius:
case CSSPropertyBorderTopRightRadius:
case CSSPropertyBorderBottomLeftRadius:
case CSSPropertyBorderBottomRightRadius: {
if (isInherit) {
HANDLE_INHERIT_COND(CSSPropertyBorderTopLeftRadius, borderTopLeftRadius, BorderTopLeftRadius)
HANDLE_INHERIT_COND(CSSPropertyBorderTopRightRadius, borderTopRightRadius, BorderTopRightRadius)
HANDLE_INHERIT_COND(CSSPropertyBorderBottomLeftRadius, borderBottomLeftRadius, BorderBottomLeftRadius)
HANDLE_INHERIT_COND(CSSPropertyBorderBottomRightRadius, borderBottomRightRadius, BorderBottomRightRadius)
return;
}
if (isInitial) {
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBorderTopLeftRadius, BorderTopLeftRadius, BorderRadius)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBorderTopRightRadius, BorderTopRightRadius, BorderRadius)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBorderBottomLeftRadius, BorderBottomLeftRadius, BorderRadius)
HANDLE_INITIAL_COND_WITH_VALUE(CSSPropertyBorderBottomRightRadius, BorderBottomRightRadius, BorderRadius)
return;
}
if (!primitiveValue)
return;
Pair* pair = primitiveValue->getPairValue();
if (!pair || !pair->first() || !pair->second())
return;
Length radiusWidth;
Length radiusHeight;
if (pair->first()->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE)
radiusWidth = Length(pair->first()->getDoubleValue(), Percent);
else
radiusWidth = Length(max(intMinForLength, min(intMaxForLength, pair->first()->computeLengthInt(style(), m_rootElementStyle, zoomFactor))), Fixed);
if (pair->second()->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE)
radiusHeight = Length(pair->second()->getDoubleValue(), Percent);
else
radiusHeight = Length(max(intMinForLength, min(intMaxForLength, pair->second()->computeLengthInt(style(), m_rootElementStyle, zoomFactor))), Fixed);
int width = radiusWidth.value();
int height = radiusHeight.value();
if (width < 0 || height < 0)
return;
if (width == 0)
radiusHeight = radiusWidth; // Null out the other value.
else if (height == 0)
radiusWidth = radiusHeight; // Null out the other value.
LengthSize size(radiusWidth, radiusHeight);
switch (id) {
case CSSPropertyBorderTopLeftRadius:
m_style->setBorderTopLeftRadius(size);
break;
case CSSPropertyBorderTopRightRadius:
m_style->setBorderTopRightRadius(size);
break;
case CSSPropertyBorderBottomLeftRadius:
m_style->setBorderBottomLeftRadius(size);
break;
case CSSPropertyBorderBottomRightRadius:
m_style->setBorderBottomRightRadius(size);
break;
default:
m_style->setBorderRadius(size);
break;
}
return;
}
case CSSPropertyOutlineOffset:
HANDLE_INHERIT_AND_INITIAL(outlineOffset, OutlineOffset)
m_style->setOutlineOffset(primitiveValue->computeLengthInt(style(), m_rootElementStyle, zoomFactor));
return;
case CSSPropertyTextRendering: {
FontDescription fontDescription = m_style->fontDescription();
if (isInherit)
fontDescription.setTextRenderingMode(m_parentStyle->fontDescription().textRenderingMode());
else if (isInitial)
fontDescription.setTextRenderingMode(AutoTextRendering);
else {
if (!primitiveValue)
return;
fontDescription.setTextRenderingMode(*primitiveValue);
}
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
}
case CSSPropertyTextShadow:
case CSSPropertyBoxShadow:
case CSSPropertyWebkitBoxShadow: {
if (isInherit) {
if (id == CSSPropertyTextShadow)
return m_style->setTextShadow(m_parentStyle->textShadow() ? new ShadowData(*m_parentStyle->textShadow()) : 0);
return m_style->setBoxShadow(m_parentStyle->boxShadow() ? new ShadowData(*m_parentStyle->boxShadow()) : 0);
}
if (isInitial || primitiveValue) // initial | none
return id == CSSPropertyTextShadow ? m_style->setTextShadow(0) : m_style->setBoxShadow(0);
if (!value->isValueList())
return;
CSSValueList *list = static_cast<CSSValueList*>(value);
int len = list->length();
for (int i = 0; i < len; i++) {
CSSValue* currValue = list->itemWithoutBoundsCheck(i);
if (!currValue->isShadowValue())
continue;
ShadowValue* item = static_cast<ShadowValue*>(list->itemWithoutBoundsCheck(i));
int x = item->x->computeLengthInt(style(), m_rootElementStyle, zoomFactor);
int y = item->y->computeLengthInt(style(), m_rootElementStyle, zoomFactor);
int blur = item->blur ? item->blur->computeLengthInt(style(), m_rootElementStyle, zoomFactor) : 0;
int spread = item->spread ? item->spread->computeLengthInt(style(), m_rootElementStyle, zoomFactor) : 0;
ShadowStyle shadowStyle = item->style && item->style->getIdent() == CSSValueInset ? Inset : Normal;
Color color;
if (item->color)
color = getColorFromPrimitiveValue(item->color.get());
ShadowData* shadowData = new ShadowData(x, y, blur, spread, shadowStyle, id == CSSPropertyWebkitBoxShadow, color.isValid() ? color : Color::transparent);
if (id == CSSPropertyTextShadow)
m_style->setTextShadow(shadowData, i != 0);
else
m_style->setBoxShadow(shadowData, i != 0);
}
return;
}
case CSSPropertyWebkitBoxReflect: {
HANDLE_INHERIT_AND_INITIAL(boxReflect, BoxReflect)
if (primitiveValue) {
m_style->setBoxReflect(RenderStyle::initialBoxReflect());
return;
}
if (!value->isReflectValue())
return;
CSSReflectValue* reflectValue = static_cast<CSSReflectValue*>(value);
RefPtr<StyleReflection> reflection = StyleReflection::create();
reflection->setDirection(reflectValue->direction());
if (reflectValue->offset()) {
int type = reflectValue->offset()->primitiveType();
if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
reflection->setOffset(Length(reflectValue->offset()->getDoubleValue(), Percent));
else
reflection->setOffset(Length(reflectValue->offset()->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed));
}
NinePieceImage mask;
mapNinePieceImage(property, reflectValue->mask(), mask);
reflection->setMask(mask);
m_style->setBoxReflect(reflection.release());
return;
}
case CSSPropertyOpacity:
HANDLE_INHERIT_AND_INITIAL(opacity, Opacity)
if (!primitiveValue || primitiveValue->primitiveType() != CSSPrimitiveValue::CSS_NUMBER)
return; // Error case.
// Clamp opacity to the range 0-1
m_style->setOpacity(min(1.0f, max(0.0f, primitiveValue->getFloatValue())));
return;
case CSSPropertyWebkitBoxAlign:
{
HANDLE_INHERIT_AND_INITIAL(boxAlign, BoxAlign)
if (!primitiveValue)
return;
EBoxAlignment boxAlignment = *primitiveValue;
if (boxAlignment != BJUSTIFY)
m_style->setBoxAlign(boxAlignment);
return;
}
case CSSPropertySrc: // Only used in @font-face rules.
return;
case CSSPropertyUnicodeRange: // Only used in @font-face rules.
return;
case CSSPropertyWebkitBackfaceVisibility:
HANDLE_INHERIT_AND_INITIAL(backfaceVisibility, BackfaceVisibility)
if (primitiveValue)
m_style->setBackfaceVisibility((primitiveValue->getIdent() == CSSValueVisible) ? BackfaceVisibilityVisible : BackfaceVisibilityHidden);
return;
case CSSPropertyWebkitBoxDirection:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(boxDirection, BoxDirection)
return;
case CSSPropertyWebkitBoxLines:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(boxLines, BoxLines)
return;
case CSSPropertyWebkitBoxOrient:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(boxOrient, BoxOrient)
return;
case CSSPropertyWebkitBoxPack:
{
HANDLE_INHERIT_AND_INITIAL(boxPack, BoxPack)
if (!primitiveValue)
return;
EBoxAlignment boxPack = *primitiveValue;
if (boxPack != BSTRETCH && boxPack != BBASELINE)
m_style->setBoxPack(boxPack);
return;
}
case CSSPropertyWebkitBoxFlex:
HANDLE_INHERIT_AND_INITIAL(boxFlex, BoxFlex)
if (!primitiveValue || primitiveValue->primitiveType() != CSSPrimitiveValue::CSS_NUMBER)
return; // Error case.
m_style->setBoxFlex(primitiveValue->getFloatValue());
return;
case CSSPropertyWebkitBoxFlexGroup:
HANDLE_INHERIT_AND_INITIAL(boxFlexGroup, BoxFlexGroup)
if (!primitiveValue || primitiveValue->primitiveType() != CSSPrimitiveValue::CSS_NUMBER)
return; // Error case.
m_style->setBoxFlexGroup((unsigned int)(primitiveValue->getDoubleValue()));
return;
case CSSPropertyWebkitBoxOrdinalGroup:
HANDLE_INHERIT_AND_INITIAL(boxOrdinalGroup, BoxOrdinalGroup)
if (!primitiveValue || primitiveValue->primitiveType() != CSSPrimitiveValue::CSS_NUMBER)
return; // Error case.
m_style->setBoxOrdinalGroup((unsigned int)(primitiveValue->getDoubleValue()));
return;
case CSSPropertyBoxSizing:
HANDLE_INHERIT_AND_INITIAL(boxSizing, BoxSizing)
if (!primitiveValue)
return;
if (primitiveValue->getIdent() == CSSValueContentBox)
m_style->setBoxSizing(CONTENT_BOX);
else
m_style->setBoxSizing(BORDER_BOX);
return;
case CSSPropertyWebkitColumnCount: {
if (isInherit) {
if (m_parentStyle->hasAutoColumnCount())
m_style->setHasAutoColumnCount();
else
m_style->setColumnCount(m_parentStyle->columnCount());
return;
} else if (isInitial || primitiveValue->getIdent() == CSSValueAuto) {
m_style->setHasAutoColumnCount();
return;
}
m_style->setColumnCount(static_cast<unsigned short>(primitiveValue->getDoubleValue()));
return;
}
case CSSPropertyWebkitColumnGap: {
if (isInherit) {
if (m_parentStyle->hasNormalColumnGap())
m_style->setHasNormalColumnGap();
else
m_style->setColumnGap(m_parentStyle->columnGap());
return;
} else if (isInitial || primitiveValue->getIdent() == CSSValueNormal) {
m_style->setHasNormalColumnGap();
return;
}
m_style->setColumnGap(primitiveValue->computeLengthFloat(style(), m_rootElementStyle, zoomFactor));
return;
}
case CSSPropertyWebkitColumnSpan: {
HANDLE_INHERIT_AND_INITIAL(columnSpan, ColumnSpan)
m_style->setColumnSpan(primitiveValue->getIdent() == CSSValueAll);
return;
}
case CSSPropertyWebkitColumnWidth: {
if (isInherit) {
if (m_parentStyle->hasAutoColumnWidth())
m_style->setHasAutoColumnWidth();
else
m_style->setColumnWidth(m_parentStyle->columnWidth());
return;
} else if (isInitial || primitiveValue->getIdent() == CSSValueAuto) {
m_style->setHasAutoColumnWidth();
return;
}
m_style->setColumnWidth(primitiveValue->computeLengthFloat(style(), m_rootElementStyle, zoomFactor));
return;
}
case CSSPropertyWebkitColumnRuleStyle:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE_WITH_VALUE(columnRuleStyle, ColumnRuleStyle, BorderStyle)
return;
case CSSPropertyWebkitColumnBreakBefore:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE_WITH_VALUE(columnBreakBefore, ColumnBreakBefore, PageBreak)
return;
case CSSPropertyWebkitColumnBreakAfter:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE_WITH_VALUE(columnBreakAfter, ColumnBreakAfter, PageBreak)
return;
case CSSPropertyWebkitColumnBreakInside: {
HANDLE_INHERIT_AND_INITIAL_WITH_VALUE(columnBreakInside, ColumnBreakInside, PageBreak)
EPageBreak pb = *primitiveValue;
if (pb != PBALWAYS)
m_style->setColumnBreakInside(pb);
return;
}
case CSSPropertyWebkitColumnRule:
if (isInherit) {
m_style->setColumnRuleColor(m_parentStyle->columnRuleColor().isValid() ? m_parentStyle->columnRuleColor() : m_parentStyle->color());
m_style->setColumnRuleStyle(m_parentStyle->columnRuleStyle());
m_style->setColumnRuleWidth(m_parentStyle->columnRuleWidth());
}
else if (isInitial)
m_style->resetColumnRule();
return;
case CSSPropertyWebkitColumns:
if (isInherit) {
if (m_parentStyle->hasAutoColumnWidth())
m_style->setHasAutoColumnWidth();
else
m_style->setColumnWidth(m_parentStyle->columnWidth());
m_style->setColumnCount(m_parentStyle->columnCount());
} else if (isInitial) {
m_style->setHasAutoColumnWidth();
m_style->setColumnCount(RenderStyle::initialColumnCount());
}
return;
case CSSPropertyWebkitMarquee:
if (valueType != CSSValue::CSS_INHERIT || !m_parentNode) return;
m_style->setMarqueeDirection(m_parentStyle->marqueeDirection());
m_style->setMarqueeIncrement(m_parentStyle->marqueeIncrement());
m_style->setMarqueeSpeed(m_parentStyle->marqueeSpeed());
m_style->setMarqueeLoopCount(m_parentStyle->marqueeLoopCount());
m_style->setMarqueeBehavior(m_parentStyle->marqueeBehavior());
return;
#if ENABLE(WCSS)
case CSSPropertyWapMarqueeLoop:
#endif
case CSSPropertyWebkitMarqueeRepetition: {
HANDLE_INHERIT_AND_INITIAL(marqueeLoopCount, MarqueeLoopCount)
if (!primitiveValue)
return;
if (primitiveValue->getIdent() == CSSValueInfinite)
m_style->setMarqueeLoopCount(-1); // -1 means repeat forever.
else if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_NUMBER)
m_style->setMarqueeLoopCount(primitiveValue->getIntValue());
return;
}
#if ENABLE(WCSS)
case CSSPropertyWapMarqueeSpeed:
#endif
case CSSPropertyWebkitMarqueeSpeed: {
HANDLE_INHERIT_AND_INITIAL(marqueeSpeed, MarqueeSpeed)
if (!primitiveValue)
return;
if (primitiveValue->getIdent()) {
switch (primitiveValue->getIdent()) {
case CSSValueSlow:
m_style->setMarqueeSpeed(500); // 500 msec.
break;
case CSSValueNormal:
m_style->setMarqueeSpeed(85); // 85msec. The WinIE default.
break;
case CSSValueFast:
m_style->setMarqueeSpeed(10); // 10msec. Super fast.
break;
}
}
else if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_S)
m_style->setMarqueeSpeed(1000 * primitiveValue->getIntValue());
else if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_MS)
m_style->setMarqueeSpeed(primitiveValue->getIntValue());
else if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_NUMBER) // For scrollamount support.
m_style->setMarqueeSpeed(primitiveValue->getIntValue());
return;
}
case CSSPropertyWebkitMarqueeIncrement: {
HANDLE_INHERIT_AND_INITIAL(marqueeIncrement, MarqueeIncrement)
if (!primitiveValue)
return;
if (primitiveValue->getIdent()) {
switch (primitiveValue->getIdent()) {
case CSSValueSmall:
m_style->setMarqueeIncrement(Length(1, Fixed)); // 1px.
break;
case CSSValueNormal:
m_style->setMarqueeIncrement(Length(6, Fixed)); // 6px. The WinIE default.
break;
case CSSValueLarge:
m_style->setMarqueeIncrement(Length(36, Fixed)); // 36px.
break;
}
}
else {
bool ok = true;
Length marqueeLength = convertToIntLength(primitiveValue, style(), m_rootElementStyle, 1, &ok);
if (ok)
m_style->setMarqueeIncrement(marqueeLength);
}
return;
}
#if ENABLE(WCSS)
case CSSPropertyWapMarqueeStyle:
#endif
case CSSPropertyWebkitMarqueeStyle:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(marqueeBehavior, MarqueeBehavior)
return;
#if ENABLE(WCSS)
case CSSPropertyWapMarqueeDir:
HANDLE_INHERIT_AND_INITIAL(marqueeDirection, MarqueeDirection)
if (primitiveValue && primitiveValue->getIdent()) {
switch (primitiveValue->getIdent()) {
case CSSValueLtr:
m_style->setMarqueeDirection(MRIGHT);
break;
case CSSValueRtl:
m_style->setMarqueeDirection(MLEFT);
break;
default:
m_style->setMarqueeDirection(*primitiveValue);
break;
}
}
return;
#endif
case CSSPropertyWebkitMarqueeDirection:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(marqueeDirection, MarqueeDirection)
return;
case CSSPropertyWebkitUserDrag:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(userDrag, UserDrag)
return;
case CSSPropertyWebkitUserModify:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(userModify, UserModify)
return;
case CSSPropertyWebkitUserSelect:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(userSelect, UserSelect)
return;
case CSSPropertyTextOverflow: {
// This property is supported by WinIE, and so we leave off the "-webkit-" in order to
// work with WinIE-specific pages that use the property.
HANDLE_INHERIT_AND_INITIAL(textOverflow, TextOverflow)
if (!primitiveValue || !primitiveValue->getIdent())
return;
m_style->setTextOverflow(primitiveValue->getIdent() == CSSValueEllipsis);
return;
}
case CSSPropertyWebkitMarginCollapse: {
if (isInherit) {
m_style->setMarginBeforeCollapse(m_parentStyle->marginBeforeCollapse());
m_style->setMarginAfterCollapse(m_parentStyle->marginAfterCollapse());
}
else if (isInitial) {
m_style->setMarginBeforeCollapse(MCOLLAPSE);
m_style->setMarginAfterCollapse(MCOLLAPSE);
}
return;
}
case CSSPropertyWebkitMarginBeforeCollapse:
case CSSPropertyWebkitMarginTopCollapse:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(marginBeforeCollapse, MarginBeforeCollapse)
return;
case CSSPropertyWebkitMarginAfterCollapse:
case CSSPropertyWebkitMarginBottomCollapse:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(marginAfterCollapse, MarginAfterCollapse)
return;
case CSSPropertyWebkitLineClamp: {
HANDLE_INHERIT_AND_INITIAL(lineClamp, LineClamp)
if (!primitiveValue)
return;
int type = primitiveValue->primitiveType();
if (type == CSSPrimitiveValue::CSS_NUMBER)
m_style->setLineClamp(LineClampValue(primitiveValue->getIntValue(CSSPrimitiveValue::CSS_NUMBER), LineClampLineCount));
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
m_style->setLineClamp(LineClampValue(primitiveValue->getIntValue(CSSPrimitiveValue::CSS_PERCENTAGE), LineClampPercentage));
return;
}
case CSSPropertyWebkitHighlight: {
HANDLE_INHERIT_AND_INITIAL(highlight, Highlight);
if (primitiveValue->getIdent() == CSSValueNone)
m_style->setHighlight(nullAtom);
else
m_style->setHighlight(primitiveValue->getStringValue());
return;
}
case CSSPropertyWebkitHyphens: {
HANDLE_INHERIT_AND_INITIAL(hyphens, Hyphens);
m_style->setHyphens(*primitiveValue);
return;
}
case CSSPropertyWebkitHyphenateCharacter: {
HANDLE_INHERIT_AND_INITIAL(hyphenationString, HyphenationString);
if (primitiveValue->getIdent() == CSSValueAuto)
m_style->setHyphenationString(nullAtom);
else
m_style->setHyphenationString(primitiveValue->getStringValue());
return;
}
case CSSPropertyWebkitHyphenateLimitAfter: {
HANDLE_INHERIT_AND_INITIAL(hyphenationLimitAfter, HyphenationLimitAfter);
if (primitiveValue->getIdent() == CSSValueAuto)
m_style->setHyphenationLimitAfter(-1);
else
m_style->setHyphenationLimitAfter(min(primitiveValue->getIntValue(CSSPrimitiveValue::CSS_NUMBER), static_cast<int>(numeric_limits<short>::max())));
return;
}
case CSSPropertyWebkitHyphenateLimitBefore: {
HANDLE_INHERIT_AND_INITIAL(hyphenationLimitBefore, HyphenationLimitBefore);
if (primitiveValue->getIdent() == CSSValueAuto)
m_style->setHyphenationLimitBefore(-1);
else
m_style->setHyphenationLimitBefore(min(primitiveValue->getIntValue(CSSPrimitiveValue::CSS_NUMBER), static_cast<int>(numeric_limits<short>::max())));
return;
}
case CSSPropertyWebkitLocale: {
HANDLE_INHERIT_AND_INITIAL(locale, Locale);
if (primitiveValue->getIdent() == CSSValueAuto)
m_style->setLocale(nullAtom);
else
m_style->setLocale(primitiveValue->getStringValue());
return;
}
case CSSPropertyWebkitBorderFit: {
HANDLE_INHERIT_AND_INITIAL(borderFit, BorderFit);
if (primitiveValue->getIdent() == CSSValueBorder)
m_style->setBorderFit(BorderFitBorder);
else
m_style->setBorderFit(BorderFitLines);
return;
}
case CSSPropertyWebkitTextSizeAdjust: {
HANDLE_INHERIT_AND_INITIAL(textSizeAdjust, TextSizeAdjust)
if (!primitiveValue || !primitiveValue->getIdent()) return;
m_style->setTextSizeAdjust(primitiveValue->getIdent() == CSSValueAuto);
m_fontDirty = true;
return;
}
case CSSPropertyWebkitTextSecurity:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(textSecurity, TextSecurity)
return;
#if ENABLE(DASHBOARD_SUPPORT)
case CSSPropertyWebkitDashboardRegion: {
HANDLE_INHERIT_AND_INITIAL(dashboardRegions, DashboardRegions)
if (!primitiveValue)
return;
if (primitiveValue->getIdent() == CSSValueNone) {
m_style->setDashboardRegions(RenderStyle::noneDashboardRegions());
return;
}
DashboardRegion *region = primitiveValue->getDashboardRegionValue();
if (!region)
return;
DashboardRegion *first = region;
while (region) {
Length top = convertToIntLength(region->top(), style(), m_rootElementStyle);
Length right = convertToIntLength(region->right(), style(), m_rootElementStyle);
Length bottom = convertToIntLength(region->bottom(), style(), m_rootElementStyle);
Length left = convertToIntLength(region->left(), style(), m_rootElementStyle);
if (region->m_isCircle)
m_style->setDashboardRegion(StyleDashboardRegion::Circle, region->m_label, top, right, bottom, left, region == first ? false : true);
else if (region->m_isRectangle)
m_style->setDashboardRegion(StyleDashboardRegion::Rectangle, region->m_label, top, right, bottom, left, region == first ? false : true);
region = region->m_next.get();
}
m_element->document()->setHasDashboardRegions(true);
return;
}
#endif
case CSSPropertyWebkitRtlOrdering:
HANDLE_INHERIT_AND_INITIAL(visuallyOrdered, VisuallyOrdered)
if (!primitiveValue || !primitiveValue->getIdent())
return;
m_style->setVisuallyOrdered(primitiveValue->getIdent() == CSSValueVisual);
return;
case CSSPropertyWebkitTextStrokeWidth: {
HANDLE_INHERIT_AND_INITIAL(textStrokeWidth, TextStrokeWidth)
float width = 0;
switch (primitiveValue->getIdent()) {
case CSSValueThin:
case CSSValueMedium:
case CSSValueThick: {
double result = 1.0 / 48;
if (primitiveValue->getIdent() == CSSValueMedium)
result *= 3;
else if (primitiveValue->getIdent() == CSSValueThick)
result *= 5;
width = CSSPrimitiveValue::create(result, CSSPrimitiveValue::CSS_EMS)->computeLengthFloat(style(), m_rootElementStyle, zoomFactor);
break;
}
default:
width = primitiveValue->computeLengthFloat(style(), m_rootElementStyle, zoomFactor);
break;
}
m_style->setTextStrokeWidth(width);
return;
}
case CSSPropertyWebkitTransform: {
HANDLE_INHERIT_AND_INITIAL(transform, Transform);
TransformOperations operations;
createTransformOperations(value, style(), m_rootElementStyle, operations);
m_style->setTransform(operations);
return;
}
case CSSPropertyWebkitTransformOrigin:
HANDLE_INHERIT_AND_INITIAL(transformOriginX, TransformOriginX)
HANDLE_INHERIT_AND_INITIAL(transformOriginY, TransformOriginY)
HANDLE_INHERIT_AND_INITIAL(transformOriginZ, TransformOriginZ)
return;
case CSSPropertyWebkitTransformOriginX: {
HANDLE_INHERIT_AND_INITIAL(transformOriginX, TransformOriginX)
if (!primitiveValue)
return;
Length l;
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else
return;
m_style->setTransformOriginX(l);
break;
}
case CSSPropertyWebkitTransformOriginY: {
HANDLE_INHERIT_AND_INITIAL(transformOriginY, TransformOriginY)
if (!primitiveValue)
return;
Length l;
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else
return;
m_style->setTransformOriginY(l);
break;
}
case CSSPropertyWebkitTransformOriginZ: {
HANDLE_INHERIT_AND_INITIAL(transformOriginZ, TransformOriginZ)
if (!primitiveValue)
return;
float f;
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
f = static_cast<float>(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle));
else
return;
m_style->setTransformOriginZ(f);
break;
}
case CSSPropertyWebkitTransformStyle:
HANDLE_INHERIT_AND_INITIAL(transformStyle3D, TransformStyle3D)
if (primitiveValue)
m_style->setTransformStyle3D((primitiveValue->getIdent() == CSSValuePreserve3d) ? TransformStyle3DPreserve3D : TransformStyle3DFlat);
return;
case CSSPropertyWebkitPerspective: {
HANDLE_INHERIT_AND_INITIAL(perspective, Perspective)
if (primitiveValue && primitiveValue->getIdent() == CSSValueNone) {
m_style->setPerspective(0);
return;
}
float perspectiveValue;
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
perspectiveValue = static_cast<float>(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor));
else if (type == CSSPrimitiveValue::CSS_NUMBER) {
// For backward compatibility, treat valueless numbers as px.
perspectiveValue = CSSPrimitiveValue::create(primitiveValue->getDoubleValue(), CSSPrimitiveValue::CSS_PX)->computeLengthFloat(style(), m_rootElementStyle, zoomFactor);
} else
return;
if (perspectiveValue >= 0.0f)
m_style->setPerspective(perspectiveValue);
return;
}
case CSSPropertyWebkitPerspectiveOrigin:
HANDLE_INHERIT_AND_INITIAL(perspectiveOriginX, PerspectiveOriginX)
HANDLE_INHERIT_AND_INITIAL(perspectiveOriginY, PerspectiveOriginY)
return;
case CSSPropertyWebkitPerspectiveOriginX: {
HANDLE_INHERIT_AND_INITIAL(perspectiveOriginX, PerspectiveOriginX)
if (!primitiveValue)
return;
Length l;
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else
return;
m_style->setPerspectiveOriginX(l);
return;
}
case CSSPropertyWebkitPerspectiveOriginY: {
HANDLE_INHERIT_AND_INITIAL(perspectiveOriginY, PerspectiveOriginY)
if (!primitiveValue)
return;
Length l;
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else
return;
m_style->setPerspectiveOriginY(l);
return;
}
case CSSPropertyWebkitAnimation:
if (isInitial)
m_style->clearAnimations();
else if (isInherit)
m_style->inheritAnimations(m_parentStyle->animations());
return;
case CSSPropertyWebkitAnimationDelay:
HANDLE_ANIMATION_VALUE(delay, Delay, value)
return;
case CSSPropertyWebkitAnimationDirection:
HANDLE_ANIMATION_VALUE(direction, Direction, value)
return;
case CSSPropertyWebkitAnimationDuration:
HANDLE_ANIMATION_VALUE(duration, Duration, value)
return;
case CSSPropertyWebkitAnimationFillMode:
HANDLE_ANIMATION_VALUE(fillMode, FillMode, value)
return;
case CSSPropertyWebkitAnimationIterationCount:
HANDLE_ANIMATION_VALUE(iterationCount, IterationCount, value)
return;
case CSSPropertyWebkitAnimationName:
HANDLE_ANIMATION_VALUE(name, Name, value)
return;
case CSSPropertyWebkitAnimationPlayState:
HANDLE_ANIMATION_VALUE(playState, PlayState, value)
return;
case CSSPropertyWebkitAnimationTimingFunction:
HANDLE_ANIMATION_VALUE(timingFunction, TimingFunction, value)
return;
case CSSPropertyWebkitTransition:
if (isInitial)
m_style->clearTransitions();
else if (isInherit)
m_style->inheritTransitions(m_parentStyle->transitions());
return;
case CSSPropertyWebkitTransitionDelay:
HANDLE_TRANSITION_VALUE(delay, Delay, value)
return;
case CSSPropertyWebkitTransitionDuration:
HANDLE_TRANSITION_VALUE(duration, Duration, value)
return;
case CSSPropertyWebkitTransitionProperty:
HANDLE_TRANSITION_VALUE(property, Property, value)
return;
case CSSPropertyWebkitTransitionTimingFunction:
HANDLE_TRANSITION_VALUE(timingFunction, TimingFunction, value)
return;
case CSSPropertyPointerEvents:
{
#if ENABLE(DASHBOARD_SUPPORT)
// <rdar://problem/6561077> Work around the Stocks widget's misuse of the
// pointer-events property by not applying it in Dashboard.
Settings* settings = m_checker.m_document->settings();
if (settings && settings->usesDashboardBackwardCompatibilityMode())
return;
#endif
HANDLE_INHERIT_AND_INITIAL(pointerEvents, PointerEvents)
if (!primitiveValue)
return;
m_style->setPointerEvents(*primitiveValue);
return;
}
case CSSPropertyWebkitColorCorrection:
if (isInherit)
m_style->setColorSpace(m_parentStyle->colorSpace());
else if (isInitial)
m_style->setColorSpace(ColorSpaceDeviceRGB);
else {
if (!primitiveValue)
return;
m_style->setColorSpace(*primitiveValue);
}
return;
case CSSPropertySize:
applyPageSizeProperty(value);
return;
case CSSPropertySpeak:
HANDLE_INHERIT_AND_INITIAL(speak, Speak);
if (!primitiveValue)
return;
m_style->setSpeak(*primitiveValue);
return;
case CSSPropertyInvalid:
return;
// Directional properties are resolved by resolveDirectionAwareProperty() before the switch.
case CSSPropertyWebkitBorderEnd:
case CSSPropertyWebkitBorderEndColor:
case CSSPropertyWebkitBorderEndStyle:
case CSSPropertyWebkitBorderEndWidth:
case CSSPropertyWebkitBorderStart:
case CSSPropertyWebkitBorderStartColor:
case CSSPropertyWebkitBorderStartStyle:
case CSSPropertyWebkitBorderStartWidth:
case CSSPropertyWebkitBorderBefore:
case CSSPropertyWebkitBorderBeforeColor:
case CSSPropertyWebkitBorderBeforeStyle:
case CSSPropertyWebkitBorderBeforeWidth:
case CSSPropertyWebkitBorderAfter:
case CSSPropertyWebkitBorderAfterColor:
case CSSPropertyWebkitBorderAfterStyle:
case CSSPropertyWebkitBorderAfterWidth:
case CSSPropertyWebkitMarginEnd:
case CSSPropertyWebkitMarginStart:
case CSSPropertyWebkitMarginBefore:
case CSSPropertyWebkitMarginAfter:
case CSSPropertyWebkitPaddingEnd:
case CSSPropertyWebkitPaddingStart:
case CSSPropertyWebkitPaddingBefore:
case CSSPropertyWebkitPaddingAfter:
case CSSPropertyWebkitLogicalWidth:
case CSSPropertyWebkitLogicalHeight:
case CSSPropertyWebkitMinLogicalWidth:
case CSSPropertyWebkitMinLogicalHeight:
case CSSPropertyWebkitMaxLogicalWidth:
case CSSPropertyWebkitMaxLogicalHeight:
ASSERT_NOT_REACHED();
break;
case CSSPropertyFontStretch:
case CSSPropertyPage:
case CSSPropertyTextLineThrough:
case CSSPropertyTextLineThroughColor:
case CSSPropertyTextLineThroughMode:
case CSSPropertyTextLineThroughStyle:
case CSSPropertyTextLineThroughWidth:
case CSSPropertyTextOverline:
case CSSPropertyTextOverlineColor:
case CSSPropertyTextOverlineMode:
case CSSPropertyTextOverlineStyle:
case CSSPropertyTextOverlineWidth:
case CSSPropertyTextUnderline:
case CSSPropertyTextUnderlineColor:
case CSSPropertyTextUnderlineMode:
case CSSPropertyTextUnderlineStyle:
case CSSPropertyTextUnderlineWidth:
case CSSPropertyWebkitFontSizeDelta:
case CSSPropertyWebkitTextDecorationsInEffect:
case CSSPropertyWebkitTextStroke:
case CSSPropertyWebkitTextEmphasis:
return;
#if ENABLE(WCSS)
case CSSPropertyWapInputFormat:
if (primitiveValue && m_element->hasTagName(WebCore::inputTag)) {
String mask = primitiveValue->getStringValue();
static_cast<HTMLInputElement*>(m_element)->setWapInputFormat(mask);
}
return;
case CSSPropertyWapInputRequired:
if (primitiveValue && m_element->isFormControlElement()) {
HTMLFormControlElement* element = static_cast<HTMLFormControlElement*>(m_element);
bool required = primitiveValue->getStringValue() == "true";
element->setRequired(required);
}
return;
#endif
// CSS Text Layout Module Level 3: Vertical writing support
case CSSPropertyWebkitWritingMode: {
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(writingMode, WritingMode)
if (!isInherit && !isInitial && m_element && m_element == m_element->document()->documentElement())
m_element->document()->setWritingModeSetOnDocumentElement(true);
FontDescription fontDescription = m_style->fontDescription();
fontDescription.setOrientation(m_style->isHorizontalWritingMode() ? Horizontal : Vertical);
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
return;
}
case CSSPropertyWebkitTextCombine:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(textCombine, TextCombine)
return;
case CSSPropertyWebkitTextEmphasisPosition:
HANDLE_INHERIT_AND_INITIAL_AND_PRIMITIVE(textEmphasisPosition, TextEmphasisPosition)
return;
case CSSPropertyWebkitTextEmphasisStyle:
HANDLE_INHERIT_AND_INITIAL(textEmphasisFill, TextEmphasisFill)
HANDLE_INHERIT_AND_INITIAL(textEmphasisMark, TextEmphasisMark)
HANDLE_INHERIT_AND_INITIAL(textEmphasisCustomMark, TextEmphasisCustomMark)
if (isInherit || isInitial)
return;
if (value->isValueList()) {
CSSValueList* list = static_cast<CSSValueList*>(value);
ASSERT(list->length() == 2);
if (list->length() != 2)
return;
for (unsigned i = 0; i < 2; ++i) {
CSSValue* item = list->itemWithoutBoundsCheck(i);
if (!item->isPrimitiveValue())
continue;
CSSPrimitiveValue* value = static_cast<CSSPrimitiveValue*>(item);
if (value->getIdent() == CSSValueFilled || value->getIdent() == CSSValueOpen)
m_style->setTextEmphasisFill(*value);
else
m_style->setTextEmphasisMark(*value);
}
m_style->setTextEmphasisCustomMark(nullAtom);
return;
}
if (!primitiveValue)
return;
if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_STRING) {
m_style->setTextEmphasisFill(TextEmphasisFillFilled);
m_style->setTextEmphasisMark(TextEmphasisMarkCustom);
m_style->setTextEmphasisCustomMark(primitiveValue->getStringValue());
return;
}
m_style->setTextEmphasisCustomMark(nullAtom);
if (primitiveValue->getIdent() == CSSValueFilled || primitiveValue->getIdent() == CSSValueOpen) {
m_style->setTextEmphasisFill(*primitiveValue);
m_style->setTextEmphasisMark(TextEmphasisMarkAuto);
} else {
m_style->setTextEmphasisFill(TextEmphasisFillFilled);
m_style->setTextEmphasisMark(*primitiveValue);
}
return;
case CSSPropertyWebkitTextOrientation: {
if (!isInherit && !isInitial && !primitiveValue)
return;
TextOrientation result;
if (isInherit)
result = m_parentStyle->fontDescription().textOrientation();
else if (isInitial)
result = RenderStyle::initialTextOrientation();
else
result = *primitiveValue;
FontDescription fontDescription = m_style->fontDescription();
if (fontDescription.textOrientation() != result) {
fontDescription.setTextOrientation(result);
if (m_style->setFontDescription(fontDescription))
m_fontDirty = true;
}
return;
}
case CSSPropertyWebkitLineBoxContain: {
HANDLE_INHERIT_AND_INITIAL(lineBoxContain, LineBoxContain)
if (primitiveValue && primitiveValue->getIdent() == CSSValueNone) {
m_style->setLineBoxContain(LineBoxContainNone);
return;
}
if (!value->isCSSLineBoxContainValue())
return;
CSSLineBoxContainValue* lineBoxContainValue = static_cast<CSSLineBoxContainValue*>(value);
m_style->setLineBoxContain(lineBoxContainValue->value());
return;
}
// These properties are implemented in the CSSStyleApplyProperty lookup table.
case CSSPropertyColor:
case CSSPropertyDirection:
case CSSPropertyBackgroundAttachment:
case CSSPropertyBackgroundClip:
case CSSPropertyWebkitBackgroundClip:
case CSSPropertyWebkitBackgroundComposite:
case CSSPropertyBackgroundOrigin:
case CSSPropertyWebkitBackgroundOrigin:
case CSSPropertyBackgroundImage:
case CSSPropertyBackgroundSize:
case CSSPropertyWebkitBackgroundSize:
case CSSPropertyWebkitMaskAttachment:
case CSSPropertyWebkitMaskClip:
case CSSPropertyWebkitMaskComposite:
case CSSPropertyWebkitMaskOrigin:
case CSSPropertyWebkitMaskImage:
case CSSPropertyWebkitMaskSize:
case CSSPropertyBackgroundColor:
case CSSPropertyBorderBottomColor:
case CSSPropertyBorderLeftColor:
case CSSPropertyBorderRightColor:
case CSSPropertyBorderTopColor:
case CSSPropertyBorderTopStyle:
case CSSPropertyBorderRightStyle:
case CSSPropertyBorderBottomStyle:
case CSSPropertyBorderLeftStyle:
case CSSPropertyOutlineColor:
case CSSPropertyWebkitColumnRuleColor:
case CSSPropertyWebkitTextEmphasisColor:
case CSSPropertyWebkitTextFillColor:
case CSSPropertyWebkitTextStrokeColor:
case CSSPropertyBackgroundPosition:
case CSSPropertyBackgroundPositionX:
case CSSPropertyBackgroundPositionY:
case CSSPropertyWebkitMaskPosition:
case CSSPropertyWebkitMaskPositionX:
case CSSPropertyWebkitMaskPositionY:
case CSSPropertyBackgroundRepeat:
case CSSPropertyBackgroundRepeatX:
case CSSPropertyBackgroundRepeatY:
case CSSPropertyWebkitMaskRepeat:
case CSSPropertyWebkitMaskRepeatX:
case CSSPropertyWebkitMaskRepeatY:
case CSSPropertyOverflow:
case CSSPropertyOverflowX:
case CSSPropertyOverflowY:
ASSERT_NOT_REACHED();
return;
#ifdef ANDROID_CSS_TAP_HIGHLIGHT_COLOR
case CSSPropertyWebkitTapHighlightColor: {
HANDLE_INHERIT_AND_INITIAL(tapHighlightColor, TapHighlightColor);
if (!primitiveValue)
break;
Color col = getColorFromPrimitiveValue(primitiveValue).blendWithWhite();
m_style->setTapHighlightColor(col);
return;
}
#endif
#if ENABLE(SVG)
default:
// Try the SVG properties
applySVGProperty(id, value);
return;
#endif
}
}
void CSSStyleSelector::applyPageSizeProperty(CSSValue* value)
{
m_style->resetPageSizeType();
if (!value->isValueList())
return;
CSSValueList* valueList = static_cast<CSSValueList*>(value);
Length width;
Length height;
PageSizeType pageSizeType = PAGE_SIZE_AUTO;
switch (valueList->length()) {
case 2: {
// <length>{2} | <page-size> <orientation>
pageSizeType = PAGE_SIZE_RESOLVED;
if (!valueList->item(0)->isPrimitiveValue() || !valueList->item(1)->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue0 = static_cast<CSSPrimitiveValue*>(valueList->item(0));
CSSPrimitiveValue* primitiveValue1 = static_cast<CSSPrimitiveValue*>(valueList->item(1));
int type0 = primitiveValue0->primitiveType();
int type1 = primitiveValue1->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type0)) {
// <length>{2}
if (!CSSPrimitiveValue::isUnitTypeLength(type1))
return;
width = Length(primitiveValue0->computeLengthIntForLength(style(), m_rootElementStyle), Fixed);
height = Length(primitiveValue1->computeLengthIntForLength(style(), m_rootElementStyle), Fixed);
} else {
// <page-size> <orientation>
// The value order is guaranteed. See CSSParser::parseSizeParameter.
if (!pageSizeFromName(primitiveValue0, primitiveValue1, width, height))
return;
}
break;
}
case 1: {
// <length> | auto | <page-size> | [ portrait | landscape]
if (!valueList->item(0)->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(valueList->item(0));
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type)) {
// <length>
pageSizeType = PAGE_SIZE_RESOLVED;
width = height = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle), Fixed);
} else {
if (type != CSSPrimitiveValue::CSS_IDENT)
return;
switch (primitiveValue->getIdent()) {
case CSSValueAuto:
pageSizeType = PAGE_SIZE_AUTO;
break;
case CSSValuePortrait:
pageSizeType = PAGE_SIZE_AUTO_PORTRAIT;
break;
case CSSValueLandscape:
pageSizeType = PAGE_SIZE_AUTO_LANDSCAPE;
break;
default:
// <page-size>
pageSizeType = PAGE_SIZE_RESOLVED;
if (!pageSizeFromName(primitiveValue, 0, width, height))
return;
}
}
break;
}
default:
return;
}
m_style->setPageSizeType(pageSizeType);
m_style->setPageSize(LengthSize(width, height));
return;
}
bool CSSStyleSelector::pageSizeFromName(CSSPrimitiveValue* pageSizeName, CSSPrimitiveValue* pageOrientation, Length& width, Length& height)
{
static const Length a5Width = mmLength(148), a5Height = mmLength(210);
static const Length a4Width = mmLength(210), a4Height = mmLength(297);
static const Length a3Width = mmLength(297), a3Height = mmLength(420);
static const Length b5Width = mmLength(176), b5Height = mmLength(250);
static const Length b4Width = mmLength(250), b4Height = mmLength(353);
static const Length letterWidth = inchLength(8.5), letterHeight = inchLength(11);
static const Length legalWidth = inchLength(8.5), legalHeight = inchLength(14);
static const Length ledgerWidth = inchLength(11), ledgerHeight = inchLength(17);
if (!pageSizeName || pageSizeName->primitiveType() != CSSPrimitiveValue::CSS_IDENT)
return false;
switch (pageSizeName->getIdent()) {
case CSSValueA5:
width = a5Width;
height = a5Height;
break;
case CSSValueA4:
width = a4Width;
height = a4Height;
break;
case CSSValueA3:
width = a3Width;
height = a3Height;
break;
case CSSValueB5:
width = b5Width;
height = b5Height;
break;
case CSSValueB4:
width = b4Width;
height = b4Height;
break;
case CSSValueLetter:
width = letterWidth;
height = letterHeight;
break;
case CSSValueLegal:
width = legalWidth;
height = legalHeight;
break;
case CSSValueLedger:
width = ledgerWidth;
height = ledgerHeight;
break;
default:
return false;
}
if (pageOrientation) {
if (pageOrientation->primitiveType() != CSSPrimitiveValue::CSS_IDENT)
return false;
switch (pageOrientation->getIdent()) {
case CSSValueLandscape:
std::swap(width, height);
break;
case CSSValuePortrait:
// Nothing to do.
break;
default:
return false;
}
}
return true;
}
Length CSSStyleSelector::mmLength(double mm) const
{
return Length(CSSPrimitiveValue::create(mm, CSSPrimitiveValue::CSS_MM)->computeLengthIntForLength(style(), m_rootElementStyle), Fixed);
}
Length CSSStyleSelector::inchLength(double inch) const
{
return Length(CSSPrimitiveValue::create(inch, CSSPrimitiveValue::CSS_IN)->computeLengthIntForLength(style(), m_rootElementStyle), Fixed);
}
void CSSStyleSelector::mapFillAttachment(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setAttachment(FillLayer::initialFillAttachment(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
switch (primitiveValue->getIdent()) {
case CSSValueFixed:
layer->setAttachment(FixedBackgroundAttachment);
break;
case CSSValueScroll:
layer->setAttachment(ScrollBackgroundAttachment);
break;
case CSSValueLocal:
layer->setAttachment(LocalBackgroundAttachment);
break;
default:
return;
}
}
void CSSStyleSelector::mapFillClip(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setClip(FillLayer::initialFillClip(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
layer->setClip(*primitiveValue);
}
void CSSStyleSelector::mapFillComposite(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setComposite(FillLayer::initialFillComposite(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
layer->setComposite(*primitiveValue);
}
void CSSStyleSelector::mapFillOrigin(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setOrigin(FillLayer::initialFillOrigin(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
layer->setOrigin(*primitiveValue);
}
StyleImage* CSSStyleSelector::styleImage(CSSPropertyID property, CSSValue* value)
{
if (value->isImageValue())
return cachedOrPendingFromValue(property, static_cast<CSSImageValue*>(value));
if (value->isImageGeneratorValue())
return static_cast<CSSImageGeneratorValue*>(value)->generatedImage();
return 0;
}
StyleImage* CSSStyleSelector::cachedOrPendingFromValue(CSSPropertyID property, CSSImageValue* value)
{
StyleImage* image = value->cachedOrPendingImage();
if (image && image->isPendingImage())
m_pendingImageProperties.add(property);
return image;
}
void CSSStyleSelector::mapFillImage(CSSPropertyID property, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setImage(FillLayer::initialFillImage(layer->type()));
return;
}
layer->setImage(styleImage(property, value));
}
void CSSStyleSelector::mapFillRepeatX(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setRepeatX(FillLayer::initialFillRepeatX(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
layer->setRepeatX(*primitiveValue);
}
void CSSStyleSelector::mapFillRepeatY(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setRepeatY(FillLayer::initialFillRepeatY(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
layer->setRepeatY(*primitiveValue);
}
void CSSStyleSelector::mapFillSize(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (!value->isPrimitiveValue()) {
layer->setSizeType(SizeNone);
return;
}
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
if (primitiveValue->getIdent() == CSSValueContain)
layer->setSizeType(Contain);
else if (primitiveValue->getIdent() == CSSValueCover)
layer->setSizeType(Cover);
else
layer->setSizeType(SizeLength);
LengthSize b = FillLayer::initialFillSizeLength(layer->type());
if (value->cssValueType() == CSSValue::CSS_INITIAL || primitiveValue->getIdent() == CSSValueContain
|| primitiveValue->getIdent() == CSSValueCover) {
layer->setSizeLength(b);
return;
}
Pair* pair = primitiveValue->getPairValue();
if (!pair || !pair->first() || !pair->second())
return;
CSSPrimitiveValue* first = static_cast<CSSPrimitiveValue*>(pair->first());
CSSPrimitiveValue* second = static_cast<CSSPrimitiveValue*>(pair->second());
Length firstLength, secondLength;
int firstType = first->primitiveType();
int secondType = second->primitiveType();
float zoomFactor = m_style->effectiveZoom();
if (firstType == CSSPrimitiveValue::CSS_UNKNOWN)
firstLength = Length(Auto);
else if (CSSPrimitiveValue::isUnitTypeLength(firstType))
firstLength = Length(first->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (firstType == CSSPrimitiveValue::CSS_PERCENTAGE)
firstLength = Length(first->getDoubleValue(), Percent);
else
return;
if (secondType == CSSPrimitiveValue::CSS_UNKNOWN)
secondLength = Length(Auto);
else if (CSSPrimitiveValue::isUnitTypeLength(secondType))
secondLength = Length(second->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (secondType == CSSPrimitiveValue::CSS_PERCENTAGE)
secondLength = Length(second->getDoubleValue(), Percent);
else
return;
b.setWidth(firstLength);
b.setHeight(secondLength);
layer->setSizeLength(b);
}
void CSSStyleSelector::mapFillXPosition(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setXPosition(FillLayer::initialFillXPosition(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
float zoomFactor = m_style->effectiveZoom();
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
Length l;
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else
return;
layer->setXPosition(l);
}
void CSSStyleSelector::mapFillYPosition(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setYPosition(FillLayer::initialFillYPosition(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
float zoomFactor = m_style->effectiveZoom();
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
Length l;
int type = primitiveValue->primitiveType();
if (CSSPrimitiveValue::isUnitTypeLength(type))
l = Length(primitiveValue->computeLengthIntForLength(style(), m_rootElementStyle, zoomFactor), Fixed);
else if (type == CSSPrimitiveValue::CSS_PERCENTAGE)
l = Length(primitiveValue->getDoubleValue(), Percent);
else
return;
layer->setYPosition(l);
}
void CSSStyleSelector::mapAnimationDelay(Animation* animation, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
animation->setDelay(Animation::initialAnimationDelay());
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_S)
animation->setDelay(primitiveValue->getFloatValue());
else
animation->setDelay(primitiveValue->getFloatValue()/1000.0f);
}
void CSSStyleSelector::mapAnimationDirection(Animation* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setDirection(Animation::initialAnimationDirection());
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
layer->setDirection(primitiveValue->getIdent() == CSSValueAlternate ? Animation::AnimationDirectionAlternate : Animation::AnimationDirectionNormal);
}
void CSSStyleSelector::mapAnimationDuration(Animation* animation, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
animation->setDuration(Animation::initialAnimationDuration());
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_S)
animation->setDuration(primitiveValue->getFloatValue());
else if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_MS)
animation->setDuration(primitiveValue->getFloatValue()/1000.0f);
}
void CSSStyleSelector::mapAnimationFillMode(Animation* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setFillMode(Animation::initialAnimationFillMode());
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
switch (primitiveValue->getIdent()) {
case CSSValueNone:
layer->setFillMode(AnimationFillModeNone);
break;
case CSSValueForwards:
layer->setFillMode(AnimationFillModeForwards);
break;
case CSSValueBackwards:
layer->setFillMode(AnimationFillModeBackwards);
break;
case CSSValueBoth:
layer->setFillMode(AnimationFillModeBoth);
break;
}
}
void CSSStyleSelector::mapAnimationIterationCount(Animation* animation, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
animation->setIterationCount(Animation::initialAnimationIterationCount());
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
if (primitiveValue->getIdent() == CSSValueInfinite)
animation->setIterationCount(-1);
else
animation->setIterationCount(int(primitiveValue->getFloatValue()));
}
void CSSStyleSelector::mapAnimationName(Animation* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setName(Animation::initialAnimationName());
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
if (primitiveValue->getIdent() == CSSValueNone)
layer->setIsNoneAnimation(true);
else
layer->setName(primitiveValue->getStringValue());
}
void CSSStyleSelector::mapAnimationPlayState(Animation* layer, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
layer->setPlayState(Animation::initialAnimationPlayState());
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
EAnimPlayState playState = (primitiveValue->getIdent() == CSSValuePaused) ? AnimPlayStatePaused : AnimPlayStatePlaying;
layer->setPlayState(playState);
}
void CSSStyleSelector::mapAnimationProperty(Animation* animation, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
animation->setProperty(Animation::initialAnimationProperty());
return;
}
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
if (primitiveValue->getIdent() == CSSValueAll)
animation->setProperty(cAnimateAll);
else if (primitiveValue->getIdent() == CSSValueNone)
animation->setProperty(cAnimateNone);
else
animation->setProperty(static_cast<CSSPropertyID>(primitiveValue->getIdent()));
}
void CSSStyleSelector::mapAnimationTimingFunction(Animation* animation, CSSValue* value)
{
if (value->cssValueType() == CSSValue::CSS_INITIAL) {
animation->setTimingFunction(Animation::initialAnimationTimingFunction());
return;
}
if (value->isPrimitiveValue()) {
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
switch (primitiveValue->getIdent()) {
case CSSValueLinear:
animation->setTimingFunction(LinearTimingFunction::create());
break;
case CSSValueEase:
animation->setTimingFunction(CubicBezierTimingFunction::create());
break;
case CSSValueEaseIn:
animation->setTimingFunction(CubicBezierTimingFunction::create(0.42, 0.0, 1.0, 1.0));
break;
case CSSValueEaseOut:
animation->setTimingFunction(CubicBezierTimingFunction::create(0.0, 0.0, 0.58, 1.0));
break;
case CSSValueEaseInOut:
animation->setTimingFunction(CubicBezierTimingFunction::create(0.42, 0.0, 0.58, 1.0));
break;
case CSSValueStepStart:
animation->setTimingFunction(StepsTimingFunction::create(1, true));
break;
case CSSValueStepEnd:
animation->setTimingFunction(StepsTimingFunction::create(1, false));
break;
}
return;
}
if (value->isTimingFunctionValue()) {
CSSTimingFunctionValue* timingFunction = static_cast<CSSTimingFunctionValue*>(value);
if (timingFunction->isCubicBezierTimingFunctionValue()) {
CSSCubicBezierTimingFunctionValue* cubicTimingFunction = static_cast<CSSCubicBezierTimingFunctionValue*>(value);
animation->setTimingFunction(CubicBezierTimingFunction::create(cubicTimingFunction->x1(), cubicTimingFunction->y1(), cubicTimingFunction->x2(), cubicTimingFunction->y2()));
} else if (timingFunction->isStepsTimingFunctionValue()) {
CSSStepsTimingFunctionValue* stepsTimingFunction = static_cast<CSSStepsTimingFunctionValue*>(value);
animation->setTimingFunction(StepsTimingFunction::create(stepsTimingFunction->numberOfSteps(), stepsTimingFunction->stepAtStart()));
} else
animation->setTimingFunction(LinearTimingFunction::create());
}
}
void CSSStyleSelector::mapNinePieceImage(CSSPropertyID property, CSSValue* value, NinePieceImage& image)
{
// If we're a primitive value, then we are "none" and don't need to alter the empty image at all.
if (!value || value->isPrimitiveValue() || !value->isBorderImageValue())
return;
// Retrieve the border image value.
CSSBorderImageValue* borderImage = static_cast<CSSBorderImageValue*>(value);
// Set the image (this kicks off the load).
image.setImage(styleImage(property, borderImage->imageValue()));
// Set up a length box to represent our image slices.
LengthBox l;
Rect* r = borderImage->m_imageSliceRect.get();
if (r->top()->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE)
l.m_top = Length(r->top()->getDoubleValue(), Percent);
else
l.m_top = Length(r->top()->getIntValue(CSSPrimitiveValue::CSS_NUMBER), Fixed);
if (r->bottom()->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE)
l.m_bottom = Length(r->bottom()->getDoubleValue(), Percent);
else
l.m_bottom = Length((int)r->bottom()->getFloatValue(CSSPrimitiveValue::CSS_NUMBER), Fixed);
if (r->left()->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE)
l.m_left = Length(r->left()->getDoubleValue(), Percent);
else
l.m_left = Length(r->left()->getIntValue(CSSPrimitiveValue::CSS_NUMBER), Fixed);
if (r->right()->primitiveType() == CSSPrimitiveValue::CSS_PERCENTAGE)
l.m_right = Length(r->right()->getDoubleValue(), Percent);
else
l.m_right = Length(r->right()->getIntValue(CSSPrimitiveValue::CSS_NUMBER), Fixed);
image.setSlices(l);
// Set the appropriate rules for stretch/round/repeat of the slices
ENinePieceImageRule horizontalRule;
switch (borderImage->m_horizontalSizeRule) {
case CSSValueStretch:
horizontalRule = StretchImageRule;
break;
case CSSValueRound:
horizontalRule = RoundImageRule;
break;
default: // CSSValueRepeat
horizontalRule = RepeatImageRule;
break;
}
image.setHorizontalRule(horizontalRule);
ENinePieceImageRule verticalRule;
switch (borderImage->m_verticalSizeRule) {
case CSSValueStretch:
verticalRule = StretchImageRule;
break;
case CSSValueRound:
verticalRule = RoundImageRule;
break;
default: // CSSValueRepeat
verticalRule = RepeatImageRule;
break;
}
image.setVerticalRule(verticalRule);
}
void CSSStyleSelector::checkForTextSizeAdjust()
{
if (m_style->textSizeAdjust())
return;
/* TODO: Remove this when a fix for webkit bug 56543 is submitted and can
* be cherry picked.
* This is a quick fix for Android to prevent sites from using
* -webkit-text-size-adjust: none; which breaks font size accessibility
* options on all platforms. The purpose of the property is to prevent
* the automatic font size changes done by platforms like iOS when the
* rotation changes. Since Android doesn't do this, we can safely ignore
* the 'none' option.
*/
#if PLATFORM(ANDROID)
return;
#endif
FontDescription newFontDescription(m_style->fontDescription());
newFontDescription.setComputedSize(newFontDescription.specifiedSize());
m_style->setFontDescription(newFontDescription);
}
void CSSStyleSelector::checkForZoomChange(RenderStyle* style, RenderStyle* parentStyle)
{
if (style->effectiveZoom() == parentStyle->effectiveZoom())
return;
const FontDescription& childFont = style->fontDescription();
FontDescription newFontDescription(childFont);
setFontSize(newFontDescription, childFont.specifiedSize());
style->setFontDescription(newFontDescription);
}
void CSSStyleSelector::checkForGenericFamilyChange(RenderStyle* style, RenderStyle* parentStyle)
{
const FontDescription& childFont = style->fontDescription();
if (childFont.isAbsoluteSize() || !parentStyle)
return;
const FontDescription& parentFont = parentStyle->fontDescription();
if (childFont.useFixedDefaultSize() == parentFont.useFixedDefaultSize())
return;
// For now, lump all families but monospace together.
if (childFont.genericFamily() != FontDescription::MonospaceFamily &&
parentFont.genericFamily() != FontDescription::MonospaceFamily)
return;
// We know the parent is monospace or the child is monospace, and that font
// size was unspecified. We want to scale our font size as appropriate.
// If the font uses a keyword size, then we refetch from the table rather than
// multiplying by our scale factor.
float size;
if (childFont.keywordSize())
size = fontSizeForKeyword(m_checker.m_document, CSSValueXxSmall + childFont.keywordSize() - 1, childFont.useFixedDefaultSize());
else {
Settings* settings = m_checker.m_document->settings();
float fixedScaleFactor = settings
? static_cast<float>(settings->defaultFixedFontSize()) / settings->defaultFontSize()
: 1;
size = parentFont.useFixedDefaultSize() ?
childFont.specifiedSize() / fixedScaleFactor :
childFont.specifiedSize() * fixedScaleFactor;
}
FontDescription newFontDescription(childFont);
setFontSize(newFontDescription, size);
style->setFontDescription(newFontDescription);
}
void CSSStyleSelector::setFontSize(FontDescription& fontDescription, float size)
{
fontDescription.setSpecifiedSize(size);
bool useSVGZoomRules = m_element && m_element->isSVGElement();
fontDescription.setComputedSize(getComputedSizeFromSpecifiedSize(m_checker.m_document, m_style.get(), fontDescription.isAbsoluteSize(), size, useSVGZoomRules));
}
float CSSStyleSelector::getComputedSizeFromSpecifiedSize(Document* document, RenderStyle* style, bool isAbsoluteSize, float specifiedSize, bool useSVGZoomRules)
{
// Text with a 0px font size should not be visible and therefore needs to be
// exempt from minimum font size rules. Acid3 relies on this for pixel-perfect
// rendering. This is also compatible with other browsers that have minimum
// font size settings (e.g. Firefox).
if (fabsf(specifiedSize) < std::numeric_limits<float>::epsilon())
return 0.0f;
float zoomFactor = 1.0f;
if (!useSVGZoomRules) {
zoomFactor = style->effectiveZoom();
if (Frame* frame = document->frame())
zoomFactor *= frame->textZoomFactor();
}
// We support two types of minimum font size. The first is a hard override that applies to
// all fonts. This is "minSize." The second type of minimum font size is a "smart minimum"
// that is applied only when the Web page can't know what size it really asked for, e.g.,
// when it uses logical sizes like "small" or expresses the font-size as a percentage of
// the user's default font setting.
// With the smart minimum, we never want to get smaller than the minimum font size to keep fonts readable.
// However we always allow the page to set an explicit pixel size that is smaller,
// since sites will mis-render otherwise (e.g., http://www.gamespot.com with a 9px minimum).
Settings* settings = document->settings();
if (!settings)
return 1.0f;
int minSize = settings->minimumFontSize();
int minLogicalSize = settings->minimumLogicalFontSize();
float zoomedSize = specifiedSize * zoomFactor;
// Apply the hard minimum first. We only apply the hard minimum if after zooming we're still too small.
if (zoomedSize < minSize)
zoomedSize = minSize;
// Now apply the "smart minimum." This minimum is also only applied if we're still too small
// after zooming. The font size must either be relative to the user default or the original size
// must have been acceptable. In other words, we only apply the smart minimum whenever we're positive
// doing so won't disrupt the layout.
if (zoomedSize < minLogicalSize && (specifiedSize >= minLogicalSize || !isAbsoluteSize))
zoomedSize = minLogicalSize;
// Also clamp to a reasonable maximum to prevent insane font sizes from causing crashes on various
// platforms (I'm looking at you, Windows.)
return min(1000000.0f, zoomedSize);
}
const int fontSizeTableMax = 16;
const int fontSizeTableMin = 9;
const int totalKeywords = 8;
// WinIE/Nav4 table for font sizes. Designed to match the legacy font mapping system of HTML.
static const int quirksFontSizeTable[fontSizeTableMax - fontSizeTableMin + 1][totalKeywords] =
{
{ 9, 9, 9, 9, 11, 14, 18, 28 },
{ 9, 9, 9, 10, 12, 15, 20, 31 },
{ 9, 9, 9, 11, 13, 17, 22, 34 },
{ 9, 9, 10, 12, 14, 18, 24, 37 },
{ 9, 9, 10, 13, 16, 20, 26, 40 }, // fixed font default (13)
{ 9, 9, 11, 14, 17, 21, 28, 42 },
{ 9, 10, 12, 15, 17, 23, 30, 45 },
{ 9, 10, 13, 16, 18, 24, 32, 48 } // proportional font default (16)
};
// HTML 1 2 3 4 5 6 7
// CSS xxs xs s m l xl xxl
// |
// user pref
// Strict mode table matches MacIE and Mozilla's settings exactly.
static const int strictFontSizeTable[fontSizeTableMax - fontSizeTableMin + 1][totalKeywords] =
{
{ 9, 9, 9, 9, 11, 14, 18, 27 },
{ 9, 9, 9, 10, 12, 15, 20, 30 },
{ 9, 9, 10, 11, 13, 17, 22, 33 },
{ 9, 9, 10, 12, 14, 18, 24, 36 },
{ 9, 10, 12, 13, 16, 20, 26, 39 }, // fixed font default (13)
{ 9, 10, 12, 14, 17, 21, 28, 42 },
{ 9, 10, 13, 15, 18, 23, 30, 45 },
{ 9, 10, 13, 16, 18, 24, 32, 48 } // proportional font default (16)
};
// HTML 1 2 3 4 5 6 7
// CSS xxs xs s m l xl xxl
// |
// user pref
// For values outside the range of the table, we use Todd Fahrner's suggested scale
// factors for each keyword value.
static const float fontSizeFactors[totalKeywords] = { 0.60f, 0.75f, 0.89f, 1.0f, 1.2f, 1.5f, 2.0f, 3.0f };
float CSSStyleSelector::fontSizeForKeyword(Document* document, int keyword, bool shouldUseFixedDefaultSize)
{
Settings* settings = document->settings();
if (!settings)
return 1.0f;
bool quirksMode = document->inQuirksMode();
int mediumSize = shouldUseFixedDefaultSize ? settings->defaultFixedFontSize() : settings->defaultFontSize();
if (mediumSize >= fontSizeTableMin && mediumSize <= fontSizeTableMax) {
// Look up the entry in the table.
int row = mediumSize - fontSizeTableMin;
int col = (keyword - CSSValueXxSmall);
return quirksMode ? quirksFontSizeTable[row][col] : strictFontSizeTable[row][col];
}
// Value is outside the range of the table. Apply the scale factor instead.
float minLogicalSize = max(settings->minimumLogicalFontSize(), 1);
return max(fontSizeFactors[keyword - CSSValueXxSmall]*mediumSize, minLogicalSize);
}
template<typename T>
static int findNearestLegacyFontSize(int pixelFontSize, const T* table, int multiplier)
{
// Ignore table[0] because xx-small does not correspond to any legacy font size.
for (int i = 1; i < totalKeywords - 1; i++) {
if (pixelFontSize * 2 < (table[i] + table[i + 1]) * multiplier)
return i;
}
return totalKeywords - 1;
}
int CSSStyleSelector::legacyFontSize(Document* document, int pixelFontSize, bool shouldUseFixedDefaultSize)
{
Settings* settings = document->settings();
if (!settings)
return 1;
bool quirksMode = document->inQuirksMode();
int mediumSize = shouldUseFixedDefaultSize ? settings->defaultFixedFontSize() : settings->defaultFontSize();
if (mediumSize >= fontSizeTableMin && mediumSize <= fontSizeTableMax) {
int row = mediumSize - fontSizeTableMin;
return findNearestLegacyFontSize<int>(pixelFontSize, quirksMode ? quirksFontSizeTable[row] : strictFontSizeTable[row], 1);
}
return findNearestLegacyFontSize<float>(pixelFontSize, fontSizeFactors, mediumSize);
}
float CSSStyleSelector::largerFontSize(float size, bool) const
{
// FIXME: Figure out where we fall in the size ranges (xx-small to xxx-large) and scale up to
// the next size level.
return size * 1.2f;
}
float CSSStyleSelector::smallerFontSize(float size, bool) const
{
// FIXME: Figure out where we fall in the size ranges (xx-small to xxx-large) and scale down to
// the next size level.
return size / 1.2f;
}
static Color colorForCSSValue(int cssValueId)
{
struct ColorValue {
int cssValueId;
RGBA32 color;
};
static const ColorValue colorValues[] = {
{ CSSValueAqua, 0xFF00FFFF },
{ CSSValueBlack, 0xFF000000 },
{ CSSValueBlue, 0xFF0000FF },
{ CSSValueFuchsia, 0xFFFF00FF },
{ CSSValueGray, 0xFF808080 },
{ CSSValueGreen, 0xFF008000 },
{ CSSValueGrey, 0xFF808080 },
{ CSSValueLime, 0xFF00FF00 },
{ CSSValueMaroon, 0xFF800000 },
{ CSSValueNavy, 0xFF000080 },
{ CSSValueOlive, 0xFF808000 },
{ CSSValueOrange, 0xFFFFA500 },
{ CSSValuePurple, 0xFF800080 },
{ CSSValueRed, 0xFFFF0000 },
{ CSSValueSilver, 0xFFC0C0C0 },
{ CSSValueTeal, 0xFF008080 },
{ CSSValueTransparent, 0x00000000 },
{ CSSValueWhite, 0xFFFFFFFF },
{ CSSValueYellow, 0xFFFFFF00 },
{ 0, 0 }
};
for (const ColorValue* col = colorValues; col->cssValueId; ++col) {
if (col->cssValueId == cssValueId)
return col->color;
}
return RenderTheme::defaultTheme()->systemColor(cssValueId);
}
Color CSSStyleSelector::getColorFromPrimitiveValue(CSSPrimitiveValue* primitiveValue) const
{
Color col;
int ident = primitiveValue->getIdent();
if (ident) {
if (ident == CSSValueWebkitText)
col = m_element->document()->textColor();
else if (ident == CSSValueWebkitLink)
col = m_element->isLink() && m_checker.m_matchVisitedPseudoClass ? m_element->document()->visitedLinkColor() : m_element->document()->linkColor();
else if (ident == CSSValueWebkitActivelink)
col = m_element->document()->activeLinkColor();
else if (ident == CSSValueWebkitFocusRingColor)
col = RenderTheme::focusRingColor();
else if (ident == CSSValueCurrentcolor)
col = m_style->color();
else
col = colorForCSSValue(ident);
} else if (primitiveValue->primitiveType() == CSSPrimitiveValue::CSS_RGBCOLOR)
col.setRGB(primitiveValue->getRGBA32Value());
return col;
}
bool CSSStyleSelector::hasSelectorForAttribute(const AtomicString &attrname) const
{
return m_selectorAttrs.contains(attrname.impl());
}
void CSSStyleSelector::addViewportDependentMediaQueryResult(const MediaQueryExp* expr, bool result)
{
m_viewportDependentMediaQueryResults.append(new MediaQueryResult(*expr, result));
}
bool CSSStyleSelector::affectedByViewportChange() const
{
unsigned s = m_viewportDependentMediaQueryResults.size();
for (unsigned i = 0; i < s; i++) {
if (m_medium->eval(&m_viewportDependentMediaQueryResults[i]->m_expression) != m_viewportDependentMediaQueryResults[i]->m_result)
return true;
}
return false;
}
void CSSStyleSelector::SelectorChecker::allVisitedStateChanged()
{
if (m_linksCheckedForVisitedState.isEmpty())
return;
for (Node* node = m_document; node; node = node->traverseNextNode()) {
if (node->isLink())
node->setNeedsStyleRecalc();
}
}
void CSSStyleSelector::SelectorChecker::visitedStateChanged(LinkHash visitedHash)
{
if (!m_linksCheckedForVisitedState.contains(visitedHash))
return;
for (Node* node = m_document; node; node = node->traverseNextNode()) {
const AtomicString* attr = linkAttribute(node);
if (attr && visitedLinkHash(m_document->baseURL(), *attr) == visitedHash)
node->setNeedsStyleRecalc();
}
}
static TransformOperation::OperationType getTransformOperationType(WebKitCSSTransformValue::TransformOperationType type)
{
switch (type) {
case WebKitCSSTransformValue::ScaleTransformOperation: return TransformOperation::SCALE;
case WebKitCSSTransformValue::ScaleXTransformOperation: return TransformOperation::SCALE_X;
case WebKitCSSTransformValue::ScaleYTransformOperation: return TransformOperation::SCALE_Y;
case WebKitCSSTransformValue::ScaleZTransformOperation: return TransformOperation::SCALE_Z;
case WebKitCSSTransformValue::Scale3DTransformOperation: return TransformOperation::SCALE_3D;
case WebKitCSSTransformValue::TranslateTransformOperation: return TransformOperation::TRANSLATE;
case WebKitCSSTransformValue::TranslateXTransformOperation: return TransformOperation::TRANSLATE_X;
case WebKitCSSTransformValue::TranslateYTransformOperation: return TransformOperation::TRANSLATE_Y;
case WebKitCSSTransformValue::TranslateZTransformOperation: return TransformOperation::TRANSLATE_Z;
case WebKitCSSTransformValue::Translate3DTransformOperation: return TransformOperation::TRANSLATE_3D;
case WebKitCSSTransformValue::RotateTransformOperation: return TransformOperation::ROTATE;
case WebKitCSSTransformValue::RotateXTransformOperation: return TransformOperation::ROTATE_X;
case WebKitCSSTransformValue::RotateYTransformOperation: return TransformOperation::ROTATE_Y;
case WebKitCSSTransformValue::RotateZTransformOperation: return TransformOperation::ROTATE_Z;
case WebKitCSSTransformValue::Rotate3DTransformOperation: return TransformOperation::ROTATE_3D;
case WebKitCSSTransformValue::SkewTransformOperation: return TransformOperation::SKEW;
case WebKitCSSTransformValue::SkewXTransformOperation: return TransformOperation::SKEW_X;
case WebKitCSSTransformValue::SkewYTransformOperation: return TransformOperation::SKEW_Y;
case WebKitCSSTransformValue::MatrixTransformOperation: return TransformOperation::MATRIX;
case WebKitCSSTransformValue::Matrix3DTransformOperation: return TransformOperation::MATRIX_3D;
case WebKitCSSTransformValue::PerspectiveTransformOperation: return TransformOperation::PERSPECTIVE;
case WebKitCSSTransformValue::UnknownTransformOperation: return TransformOperation::NONE;
}
return TransformOperation::NONE;
}
bool CSSStyleSelector::createTransformOperations(CSSValue* inValue, RenderStyle* style, RenderStyle* rootStyle, TransformOperations& outOperations)
{
if (!inValue || !inValue->isValueList()) {
outOperations.clear();
return false;
}
float zoomFactor = style ? style->effectiveZoom() : 1;
TransformOperations operations;
CSSValueList* list = static_cast<CSSValueList*>(inValue);
unsigned size = list->length();
for (unsigned i = 0; i < size; i++) {
CSSValue* currValue = list->itemWithoutBoundsCheck(i);
if (!currValue->isWebKitCSSTransformValue())
continue;
WebKitCSSTransformValue* transformValue = static_cast<WebKitCSSTransformValue*>(list->itemWithoutBoundsCheck(i));
if (!transformValue->length())
continue;
bool haveNonPrimitiveValue = false;
for (unsigned j = 0; j < transformValue->length(); ++j) {
if (!transformValue->itemWithoutBoundsCheck(j)->isPrimitiveValue()) {
haveNonPrimitiveValue = true;
break;
}
}
if (haveNonPrimitiveValue)
continue;
CSSPrimitiveValue* firstValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(0));
switch (transformValue->operationType()) {
case WebKitCSSTransformValue::ScaleTransformOperation:
case WebKitCSSTransformValue::ScaleXTransformOperation:
case WebKitCSSTransformValue::ScaleYTransformOperation: {
double sx = 1.0;
double sy = 1.0;
if (transformValue->operationType() == WebKitCSSTransformValue::ScaleYTransformOperation)
sy = firstValue->getDoubleValue();
else {
sx = firstValue->getDoubleValue();
if (transformValue->operationType() != WebKitCSSTransformValue::ScaleXTransformOperation) {
if (transformValue->length() > 1) {
CSSPrimitiveValue* secondValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(1));
sy = secondValue->getDoubleValue();
} else
sy = sx;
}
}
operations.operations().append(ScaleTransformOperation::create(sx, sy, 1.0, getTransformOperationType(transformValue->operationType())));
break;
}
case WebKitCSSTransformValue::ScaleZTransformOperation:
case WebKitCSSTransformValue::Scale3DTransformOperation: {
double sx = 1.0;
double sy = 1.0;
double sz = 1.0;
if (transformValue->operationType() == WebKitCSSTransformValue::ScaleZTransformOperation)
sz = firstValue->getDoubleValue();
else if (transformValue->operationType() == WebKitCSSTransformValue::ScaleYTransformOperation)
sy = firstValue->getDoubleValue();
else {
sx = firstValue->getDoubleValue();
if (transformValue->operationType() != WebKitCSSTransformValue::ScaleXTransformOperation) {
if (transformValue->length() > 2) {
CSSPrimitiveValue* thirdValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(2));
sz = thirdValue->getDoubleValue();
}
if (transformValue->length() > 1) {
CSSPrimitiveValue* secondValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(1));
sy = secondValue->getDoubleValue();
} else
sy = sx;
}
}
operations.operations().append(ScaleTransformOperation::create(sx, sy, sz, getTransformOperationType(transformValue->operationType())));
break;
}
case WebKitCSSTransformValue::TranslateTransformOperation:
case WebKitCSSTransformValue::TranslateXTransformOperation:
case WebKitCSSTransformValue::TranslateYTransformOperation: {
bool ok = true;
Length tx = Length(0, Fixed);
Length ty = Length(0, Fixed);
if (transformValue->operationType() == WebKitCSSTransformValue::TranslateYTransformOperation)
ty = convertToFloatLength(firstValue, style, rootStyle, zoomFactor, &ok);
else {
tx = convertToFloatLength(firstValue, style, rootStyle, zoomFactor, &ok);
if (transformValue->operationType() != WebKitCSSTransformValue::TranslateXTransformOperation) {
if (transformValue->length() > 1) {
CSSPrimitiveValue* secondValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(1));
ty = convertToFloatLength(secondValue, style, rootStyle, zoomFactor, &ok);
}
}
}
if (!ok)
return false;
operations.operations().append(TranslateTransformOperation::create(tx, ty, Length(0, Fixed), getTransformOperationType(transformValue->operationType())));
break;
}
case WebKitCSSTransformValue::TranslateZTransformOperation:
case WebKitCSSTransformValue::Translate3DTransformOperation: {
bool ok = true;
Length tx = Length(0, Fixed);
Length ty = Length(0, Fixed);
Length tz = Length(0, Fixed);
if (transformValue->operationType() == WebKitCSSTransformValue::TranslateZTransformOperation)
tz = convertToFloatLength(firstValue, style, rootStyle, zoomFactor, &ok);
else if (transformValue->operationType() == WebKitCSSTransformValue::TranslateYTransformOperation)
ty = convertToFloatLength(firstValue, style, rootStyle, zoomFactor, &ok);
else {
tx = convertToFloatLength(firstValue, style, rootStyle, zoomFactor, &ok);
if (transformValue->operationType() != WebKitCSSTransformValue::TranslateXTransformOperation) {
if (transformValue->length() > 2) {
CSSPrimitiveValue* thirdValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(2));
tz = convertToFloatLength(thirdValue, style, rootStyle, zoomFactor, &ok);
}
if (transformValue->length() > 1) {
CSSPrimitiveValue* secondValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(1));
ty = convertToFloatLength(secondValue, style, rootStyle, zoomFactor, &ok);
}
}
}
if (!ok)
return false;
operations.operations().append(TranslateTransformOperation::create(tx, ty, tz, getTransformOperationType(transformValue->operationType())));
break;
}
case WebKitCSSTransformValue::RotateTransformOperation: {
double angle = firstValue->getDoubleValue();
if (firstValue->primitiveType() == CSSPrimitiveValue::CSS_RAD)
angle = rad2deg(angle);
else if (firstValue->primitiveType() == CSSPrimitiveValue::CSS_GRAD)
angle = grad2deg(angle);
else if (firstValue->primitiveType() == CSSPrimitiveValue::CSS_TURN)
angle = turn2deg(angle);
operations.operations().append(RotateTransformOperation::create(0, 0, 1, angle, getTransformOperationType(transformValue->operationType())));
break;
}
case WebKitCSSTransformValue::RotateXTransformOperation:
case WebKitCSSTransformValue::RotateYTransformOperation:
case WebKitCSSTransformValue::RotateZTransformOperation: {
double x = 0;
double y = 0;
double z = 0;
double angle = firstValue->getDoubleValue();
if (firstValue->primitiveType() == CSSPrimitiveValue::CSS_RAD)
angle = rad2deg(angle);
else if (firstValue->primitiveType() == CSSPrimitiveValue::CSS_GRAD)
angle = grad2deg(angle);
if (transformValue->operationType() == WebKitCSSTransformValue::RotateXTransformOperation)
x = 1;
else if (transformValue->operationType() == WebKitCSSTransformValue::RotateYTransformOperation)
y = 1;
else
z = 1;
operations.operations().append(RotateTransformOperation::create(x, y, z, angle, getTransformOperationType(transformValue->operationType())));
break;
}
case WebKitCSSTransformValue::Rotate3DTransformOperation: {
if (transformValue->length() < 4)
break;
CSSPrimitiveValue* secondValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(1));
CSSPrimitiveValue* thirdValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(2));
CSSPrimitiveValue* fourthValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(3));
double x = firstValue->getDoubleValue();
double y = secondValue->getDoubleValue();
double z = thirdValue->getDoubleValue();
double angle = fourthValue->getDoubleValue();
if (fourthValue->primitiveType() == CSSPrimitiveValue::CSS_RAD)
angle = rad2deg(angle);
else if (fourthValue->primitiveType() == CSSPrimitiveValue::CSS_GRAD)
angle = grad2deg(angle);
operations.operations().append(RotateTransformOperation::create(x, y, z, angle, getTransformOperationType(transformValue->operationType())));
break;
}
case WebKitCSSTransformValue::SkewTransformOperation:
case WebKitCSSTransformValue::SkewXTransformOperation:
case WebKitCSSTransformValue::SkewYTransformOperation: {
double angleX = 0;
double angleY = 0;
double angle = firstValue->getDoubleValue();
if (firstValue->primitiveType() == CSSPrimitiveValue::CSS_RAD)
angle = rad2deg(angle);
else if (firstValue->primitiveType() == CSSPrimitiveValue::CSS_GRAD)
angle = grad2deg(angle);
else if (firstValue->primitiveType() == CSSPrimitiveValue::CSS_TURN)
angle = turn2deg(angle);
if (transformValue->operationType() == WebKitCSSTransformValue::SkewYTransformOperation)
angleY = angle;
else {
angleX = angle;
if (transformValue->operationType() == WebKitCSSTransformValue::SkewTransformOperation) {
if (transformValue->length() > 1) {
CSSPrimitiveValue* secondValue = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(1));
angleY = secondValue->getDoubleValue();
if (secondValue->primitiveType() == CSSPrimitiveValue::CSS_RAD)
angleY = rad2deg(angleY);
else if (secondValue->primitiveType() == CSSPrimitiveValue::CSS_GRAD)
angleY = grad2deg(angleY);
else if (secondValue->primitiveType() == CSSPrimitiveValue::CSS_TURN)
angleY = turn2deg(angleY);
}
}
}
operations.operations().append(SkewTransformOperation::create(angleX, angleY, getTransformOperationType(transformValue->operationType())));
break;
}
case WebKitCSSTransformValue::MatrixTransformOperation: {
if (transformValue->length() < 6)
break;
double a = firstValue->getDoubleValue();
double b = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(1))->getDoubleValue();
double c = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(2))->getDoubleValue();
double d = static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(3))->getDoubleValue();
double e = zoomFactor * static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(4))->getDoubleValue();
double f = zoomFactor * static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(5))->getDoubleValue();
operations.operations().append(MatrixTransformOperation::create(a, b, c, d, e, f));
break;
}
case WebKitCSSTransformValue::Matrix3DTransformOperation: {
if (transformValue->length() < 16)
break;
TransformationMatrix matrix(static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(0))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(1))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(2))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(3))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(4))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(5))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(6))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(7))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(8))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(9))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(10))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(11))->getDoubleValue(),
zoomFactor * static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(12))->getDoubleValue(),
zoomFactor * static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(13))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(14))->getDoubleValue(),
static_cast<CSSPrimitiveValue*>(transformValue->itemWithoutBoundsCheck(15))->getDoubleValue());
operations.operations().append(Matrix3DTransformOperation::create(matrix));
break;
}
case WebKitCSSTransformValue::PerspectiveTransformOperation: {
bool ok = true;
Length p = Length(0, Fixed);
if (CSSPrimitiveValue::isUnitTypeLength(firstValue->primitiveType()))
p = convertToFloatLength(firstValue, style, rootStyle, zoomFactor, &ok);
else {
// This is a quirk that should go away when 3d transforms are finalized.
double val = firstValue->getDoubleValue();
ok = val >= 0;
val = clampToPositiveInteger(val);
p = Length(static_cast<int>(val), Fixed);
}
if (!ok)
return false;
operations.operations().append(PerspectiveTransformOperation::create(p));
break;
}
case WebKitCSSTransformValue::UnknownTransformOperation:
ASSERT_NOT_REACHED();
break;
}
}
outOperations = operations;
return true;
}
void CSSStyleSelector::loadPendingImages()
{
if (m_pendingImageProperties.isEmpty())
return;
HashSet<int>::const_iterator end = m_pendingImageProperties.end();
for (HashSet<int>::const_iterator it = m_pendingImageProperties.begin(); it != end; ++it) {
CSSPropertyID currentProperty = static_cast<CSSPropertyID>(*it);
CachedResourceLoader* cachedResourceLoader = m_element->document()->cachedResourceLoader();
switch (currentProperty) {
case CSSPropertyBackgroundImage: {
for (FillLayer* backgroundLayer = m_style->accessBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) {
if (backgroundLayer->image() && backgroundLayer->image()->isPendingImage()) {
CSSImageValue* imageValue = static_cast<StylePendingImage*>(backgroundLayer->image())->cssImageValue();
backgroundLayer->setImage(imageValue->cachedImage(cachedResourceLoader));
}
}
break;
}
case CSSPropertyContent: {
for (ContentData* contentData = const_cast<ContentData*>(m_style->contentData()); contentData; contentData = contentData->next()) {
if (contentData->isImage() && contentData->image()->isPendingImage()) {
CSSImageValue* imageValue = static_cast<StylePendingImage*>(contentData->image())->cssImageValue();
if (StyleCachedImage* cachedImage = imageValue->cachedImage(cachedResourceLoader))
contentData->setImage(cachedImage);
}
}
break;
}
case CSSPropertyCursor: {
if (CursorList* cursorList = m_style->cursors()) {
for (size_t i = 0; i < cursorList->size(); ++i) {
CursorData& currentCursor = cursorList->at(i);
if (StyleImage* image = currentCursor.image()) {
if (image->isPendingImage()) {
CSSImageValue* imageValue = static_cast<StylePendingImage*>(image)->cssImageValue();
currentCursor.setImage(imageValue->cachedImage(cachedResourceLoader));
}
}
}
}
break;
}
case CSSPropertyListStyleImage: {
if (m_style->listStyleImage() && m_style->listStyleImage()->isPendingImage()) {
CSSImageValue* imageValue = static_cast<StylePendingImage*>(m_style->listStyleImage())->cssImageValue();
m_style->setListStyleImage(imageValue->cachedImage(cachedResourceLoader));
}
break;
}
case CSSPropertyWebkitBorderImage: {
const NinePieceImage& borderImage = m_style->borderImage();
if (borderImage.image() && borderImage.image()->isPendingImage()) {
CSSImageValue* imageValue = static_cast<StylePendingImage*>(borderImage.image())->cssImageValue();
m_style->setBorderImage(NinePieceImage(imageValue->cachedImage(cachedResourceLoader), borderImage.slices(), borderImage.horizontalRule(), borderImage.verticalRule()));
}
break;
}
case CSSPropertyWebkitBoxReflect: {
if (StyleReflection* reflection = m_style->boxReflect()) {
const NinePieceImage& maskImage = reflection->mask();
if (maskImage.image() && maskImage.image()->isPendingImage()) {
CSSImageValue* imageValue = static_cast<StylePendingImage*>(maskImage.image())->cssImageValue();
reflection->setMask(NinePieceImage(imageValue->cachedImage(cachedResourceLoader), maskImage.slices(), maskImage.horizontalRule(), maskImage.verticalRule()));
}
}
break;
}
case CSSPropertyWebkitMaskBoxImage: {
const NinePieceImage& maskBoxImage = m_style->maskBoxImage();
if (maskBoxImage.image() && maskBoxImage.image()->isPendingImage()) {
CSSImageValue* imageValue = static_cast<StylePendingImage*>(maskBoxImage.image())->cssImageValue();
m_style->setMaskBoxImage(NinePieceImage(imageValue->cachedImage(cachedResourceLoader), maskBoxImage.slices(), maskBoxImage.horizontalRule(), maskBoxImage.verticalRule()));
}
break;
}
case CSSPropertyWebkitMaskImage: {
for (FillLayer* maskLayer = m_style->accessMaskLayers(); maskLayer; maskLayer = maskLayer->next()) {
if (maskLayer->image() && maskLayer->image()->isPendingImage()) {
CSSImageValue* imageValue = static_cast<StylePendingImage*>(maskLayer->image())->cssImageValue();
maskLayer->setImage(imageValue->cachedImage(cachedResourceLoader));
}
}
break;
}
default:
ASSERT_NOT_REACHED();
}
}
m_pendingImageProperties.clear();
}
} // namespace WebCore