| /* |
| * 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, 2012 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. |
| * Copyright (C) Research In Motion Limited 2011. All rights reserved. |
| * Copyright (C) 2013 Google Inc. 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 "core/css/DocumentRuleSets.h" |
| |
| #include "core/css/CSSDefaultStyleSheets.h" |
| #include "core/css/CSSStyleSheet.h" |
| #include "core/css/MediaQueryEvaluator.h" |
| #include "core/css/StyleSheetContents.h" |
| #include "core/css/resolver/StyleResolver.h" |
| #include "core/dom/DocumentStyleSheetCollection.h" |
| |
| namespace WebCore { |
| |
| void ShadowDistributedRules::addRule(StyleRule* rule, size_t selectorIndex, ContainerNode* scope, AddRuleFlags addRuleFlags) |
| { |
| if (m_shadowDistributedRuleSetMap.contains(scope)) |
| m_shadowDistributedRuleSetMap.get(scope)->addRule(rule, selectorIndex, addRuleFlags); |
| else { |
| OwnPtr<RuleSet> ruleSetForScope = adoptPtr(new RuleSet()); |
| ruleSetForScope->addRule(rule, selectorIndex, addRuleFlags); |
| m_shadowDistributedRuleSetMap.add(scope, ruleSetForScope.release()); |
| } |
| } |
| |
| void ShadowDistributedRules::collectMatchRequests(bool includeEmptyRules, Vector<MatchRequest>& matchRequests) |
| { |
| for (ShadowDistributedRuleSetMap::iterator it = m_shadowDistributedRuleSetMap.begin(); it != m_shadowDistributedRuleSetMap.end(); ++it) |
| matchRequests.append(MatchRequest(it->value.get(), includeEmptyRules, it->key)); |
| } |
| |
| void ShadowDistributedRules::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const |
| { |
| MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS); |
| info.addMember(m_shadowDistributedRuleSetMap, "shadowDistributedRuleSetMap"); |
| } |
| |
| void ShadowDistributedRules::collectFeaturesTo(RuleFeatureSet& features) |
| { |
| for (ShadowDistributedRuleSetMap::iterator it = m_shadowDistributedRuleSetMap.begin(); it != m_shadowDistributedRuleSetMap.end(); ++it) |
| features.add(it->value->features()); |
| } |
| |
| 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(); |
| m_shadowDistributedRules.clear(); |
| } |
| |
| void DocumentRuleSets::appendAuthorStyleSheets(unsigned firstNew, const Vector<RefPtr<CSSStyleSheet> >& styleSheets, MediaQueryEvaluator* medium, InspectorCSSOMWrappers& inspectorCSSOMWrappers, bool isViewSource, StyleResolver* resolver) |
| { |
| // This handles sheets added to the end of the stylesheet list only. In other cases the style resolver |
| // needs to be reconstructed. To handle insertions too the rule order numbers would need to be updated. |
| 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 (const ContainerNode* scope = ScopedStyleResolver::scopeFor(cssSheet)) { |
| // FIXME: Remove a dependency to calling a StyleResolver's member function. |
| // If we can avoid calling resolver->ensureScopeResolver() here, we don't have to include "core/css/resolver/StyleResolver.h". |
| // https://bugs.webkit.org/show_bug.cgi?id=108890 |
| resolver->ensureScopeResolver()->ensureRuleSetFor(scope)->addRulesFromSheet(sheet, *medium, resolver, scope); |
| inspectorCSSOMWrappers.collectFromStyleSheetIfNeeded(cssSheet); |
| continue; |
| } |
| m_authorStyle->addRulesFromSheet(sheet, *medium, resolver); |
| inspectorCSSOMWrappers.collectFromStyleSheetIfNeeded(cssSheet); |
| } |
| m_authorStyle->shrinkToFit(); |
| collectFeatures(isViewSource, resolver->scopeResolver()); |
| } |
| |
| void DocumentRuleSets::collectFeatures(bool isViewSource, ScopedStyleResolver* scopeResolver) |
| { |
| m_features.clear(); |
| // 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. |
| 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_shadowDistributedRules.collectFeaturesTo(m_features); |
| |
| m_siblingRuleSet = makeRuleSet(m_features.siblingRules); |
| m_uncommonAttributeRuleSet = makeRuleSet(m_features.uncommonAttributeRules); |
| } |
| |
| void DocumentRuleSets::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const |
| { |
| MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS); |
| info.addMember(m_authorStyle, "authorStyle"); |
| info.addMember(m_userStyle, "userStyle"); |
| info.addMember(m_features, "features"); |
| info.addMember(m_siblingRuleSet, "siblingRuleSet"); |
| info.addMember(m_uncommonAttributeRuleSet, "uncommonAttributeRuleSet"); |
| info.addMember(m_shadowDistributedRules, "shadowDistributedRules"); |
| } |
| |
| } // namespace WebCore |