DocumentRuleSets.cpp [plain text]
#include "config.h"
#include "DocumentRuleSets.h"
#include "CSSDefaultStyleSheets.h"
#include "CSSStyleSheet.h"
#include "DocumentStyleSheetCollection.h"
#include "MediaQueryEvaluator.h"
#include "StyleResolver.h"
#include "StyleSheetContents.h"
namespace WebCore {
DocumentRuleSets::DocumentRuleSets()
{
}
DocumentRuleSets::~DocumentRuleSets()
{
}
void DocumentRuleSets::initUserStyle(DocumentStyleSheetCollection* styleSheetCollection, const MediaQueryEvaluator& medium, StyleResolver& resolver)
{
OwnPtr<RuleSet> tempUserStyle = RuleSet::create();
if (CSSStyleSheet* pageUserSheet = styleSheetCollection->pageUserSheet())
tempUserStyle->addRulesFromSheet(pageUserSheet->contents(), medium, &resolver);
collectRulesFromUserStyleSheets(styleSheetCollection->injectedUserStyleSheets(), *tempUserStyle, medium, resolver);
collectRulesFromUserStyleSheets(styleSheetCollection->documentUserStyleSheets(), *tempUserStyle, medium, resolver);
if (tempUserStyle->m_ruleCount > 0 || tempUserStyle->m_pageRules.size() > 0)
m_userStyle = tempUserStyle.release();
}
void DocumentRuleSets::collectRulesFromUserStyleSheets(const Vector<RefPtr<CSSStyleSheet> >& userSheets, RuleSet& userStyle, const MediaQueryEvaluator& medium, StyleResolver& resolver)
{
for (unsigned i = 0; i < userSheets.size(); ++i) {
ASSERT(userSheets[i]->contents()->isUserStyleSheet());
userStyle.addRulesFromSheet(userSheets[i]->contents(), medium, &resolver);
}
}
static PassOwnPtr<RuleSet> makeRuleSet(const Vector<RuleFeature>& rules)
{
size_t size = rules.size();
if (!size)
return nullptr;
OwnPtr<RuleSet> ruleSet = RuleSet::create();
for (size_t i = 0; i < size; ++i)
ruleSet->addRule(rules[i].rule, rules[i].selectorIndex, rules[i].hasDocumentSecurityOrigin ? RuleHasDocumentSecurityOrigin : RuleHasNoSpecialState);
ruleSet->shrinkToFit();
return ruleSet.release();
}
void DocumentRuleSets::resetAuthorStyle()
{
m_authorStyle = RuleSet::create();
m_authorStyle->disableAutoShrinkToFit();
}
void DocumentRuleSets::appendAuthorStyleSheets(unsigned firstNew, const Vector<RefPtr<CSSStyleSheet> >& styleSheets, MediaQueryEvaluator* medium, InspectorCSSOMWrappers& inspectorCSSOMWrappers, bool isViewSource, StyleResolver* resolver)
{
unsigned size = styleSheets.size();
for (unsigned i = firstNew; i < size; ++i) {
CSSStyleSheet* cssSheet = styleSheets[i].get();
ASSERT(!cssSheet->disabled());
if (cssSheet->mediaQueries() && !medium->eval(cssSheet->mediaQueries(), resolver))
continue;
StyleSheetContents* sheet = cssSheet->contents();
#if ENABLE(STYLE_SCOPED) || ENABLE(SHADOW_DOM)
if (const ContainerNode* scope = StyleScopeResolver::scopeFor(cssSheet)) {
resolver->ensureScopeResolver()->ensureRuleSetFor(scope)->addRulesFromSheet(sheet, *medium, resolver, scope);
continue;
}
#endif
m_authorStyle->addRulesFromSheet(sheet, *medium, resolver);
inspectorCSSOMWrappers.collectFromStyleSheetIfNeeded(cssSheet);
}
m_authorStyle->shrinkToFit();
collectFeatures(isViewSource, resolver->scopeResolver());
}
void DocumentRuleSets::collectFeatures(bool isViewSource, StyleScopeResolver* scopeResolver)
{
m_features.clear();
if (CSSDefaultStyleSheets::defaultStyle)
m_features.add(CSSDefaultStyleSheets::defaultStyle->features());
if (m_authorStyle)
m_features.add(m_authorStyle->features());
if (isViewSource)
m_features.add(CSSDefaultStyleSheets::viewSourceStyle()->features());
if (scopeResolver)
scopeResolver->collectFeaturesTo(m_features);
if (m_userStyle)
m_features.add(m_userStyle->features());
m_siblingRuleSet = makeRuleSet(m_features.siblingRules);
m_uncommonAttributeRuleSet = makeRuleSet(m_features.uncommonAttributeRules);
}
}