| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "core/css/resolver/ScopedStyleResolver.h" |
| |
| #include "core/HTMLNames.h" |
| #include "core/css/CSSFontSelector.h" |
| #include "core/css/CSSStyleSheet.h" |
| #include "core/css/FontFace.h" |
| #include "core/css/PageRuleCollector.h" |
| #include "core/css/RuleFeature.h" |
| #include "core/css/StyleRule.h" |
| #include "core/css/StyleSheetContents.h" |
| #include "core/css/resolver/MatchRequest.h" |
| #include "core/css/resolver/ViewportStyleResolver.h" |
| #include "core/dom/Document.h" |
| #include "core/dom/StyleEngine.h" |
| #include "core/dom/shadow/ElementShadow.h" |
| #include "core/dom/shadow/ShadowRoot.h" |
| #include "core/html/HTMLStyleElement.h" |
| #include "core/svg/SVGStyleElement.h" |
| |
| namespace blink { |
| |
| ScopedStyleResolver* ScopedStyleResolver::parent() const |
| { |
| for (TreeScope* scope = treeScope().parentTreeScope(); scope; scope = scope->parentTreeScope()) { |
| if (ScopedStyleResolver* resolver = scope->scopedStyleResolver()) |
| return resolver; |
| } |
| return nullptr; |
| } |
| |
| void ScopedStyleResolver::addKeyframeRules(const RuleSet& ruleSet) |
| { |
| const WillBeHeapVector<RawPtrWillBeMember<StyleRuleKeyframes>> keyframesRules = ruleSet.keyframesRules(); |
| for (unsigned i = 0; i < keyframesRules.size(); ++i) |
| addKeyframeStyle(keyframesRules[i]); |
| } |
| |
| void ScopedStyleResolver::addFontFaceRules(const RuleSet& ruleSet) |
| { |
| // FIXME(BUG 72461): We don't add @font-face rules of scoped style sheets for the moment. |
| if (!treeScope().rootNode().isDocumentNode()) |
| return; |
| |
| Document& document = treeScope().document(); |
| CSSFontSelector* cssFontSelector = document.styleEngine().fontSelector(); |
| const WillBeHeapVector<RawPtrWillBeMember<StyleRuleFontFace>> fontFaceRules = ruleSet.fontFaceRules(); |
| for (auto& fontFaceRule : fontFaceRules) { |
| if (RefPtrWillBeRawPtr<FontFace> fontFace = FontFace::create(&document, fontFaceRule)) |
| cssFontSelector->fontFaceCache()->add(cssFontSelector, fontFaceRule, fontFace); |
| } |
| if (fontFaceRules.size()) |
| document.styleResolver()->invalidateMatchedPropertiesCache(); |
| } |
| |
| void ScopedStyleResolver::appendCSSStyleSheet(CSSStyleSheet& cssSheet, const MediaQueryEvaluator& medium) |
| { |
| unsigned index = m_authorStyleSheets.size(); |
| m_authorStyleSheets.append(&cssSheet); |
| StyleSheetContents* sheet = cssSheet.contents(); |
| AddRuleFlags addRuleFlags = treeScope().document().securityOrigin()->canRequest(sheet->baseURL()) ? RuleHasDocumentSecurityOrigin : RuleHasNoSpecialState; |
| const RuleSet& ruleSet = sheet->ensureRuleSet(medium, addRuleFlags); |
| |
| addKeyframeRules(ruleSet); |
| addFontFaceRules(ruleSet); |
| addTreeBoundaryCrossingRules(ruleSet, &cssSheet, index); |
| treeScope().document().styleResolver()->addViewportDependentMediaQueries(ruleSet.viewportDependentMediaQueryResults()); |
| treeScope().document().styleResolver()->addDeviceDependentMediaQueries(ruleSet.deviceDependentMediaQueryResults()); |
| } |
| |
| void ScopedStyleResolver::collectFeaturesTo(RuleFeatureSet& features, WillBeHeapHashSet<RawPtrWillBeMember<const StyleSheetContents>>& visitedSharedStyleSheetContents) const |
| { |
| for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) { |
| ASSERT(m_authorStyleSheets[i]->ownerNode()); |
| StyleSheetContents* contents = m_authorStyleSheets[i]->contents(); |
| if (contents->hasOneClient() || visitedSharedStyleSheetContents.add(contents).isNewEntry) |
| features.add(contents->ruleSet().features()); |
| } |
| |
| if (!m_treeBoundaryCrossingRuleSet) |
| return; |
| |
| for (const auto& rules : *m_treeBoundaryCrossingRuleSet) |
| features.add(rules->m_ruleSet->features()); |
| } |
| |
| void ScopedStyleResolver::resetAuthorStyle() |
| { |
| m_authorStyleSheets.clear(); |
| m_keyframesRuleMap.clear(); |
| m_treeBoundaryCrossingRuleSet = nullptr; |
| m_hasDeepOrShadowSelector = false; |
| } |
| |
| StyleRuleKeyframes* ScopedStyleResolver::keyframeStylesForAnimation(const StringImpl* animationName) |
| { |
| if (m_keyframesRuleMap.isEmpty()) |
| return nullptr; |
| |
| KeyframesRuleMap::iterator it = m_keyframesRuleMap.find(animationName); |
| if (it == m_keyframesRuleMap.end()) |
| return nullptr; |
| |
| return it->value.get(); |
| } |
| |
| void ScopedStyleResolver::addKeyframeStyle(PassRefPtrWillBeRawPtr<StyleRuleKeyframes> rule) |
| { |
| AtomicString s(rule->name()); |
| |
| if (rule->isVendorPrefixed()) { |
| KeyframesRuleMap::iterator it = m_keyframesRuleMap.find(s.impl()); |
| if (it == m_keyframesRuleMap.end()) |
| m_keyframesRuleMap.set(s.impl(), rule); |
| else if (it->value->isVendorPrefixed()) |
| m_keyframesRuleMap.set(s.impl(), rule); |
| } else { |
| m_keyframesRuleMap.set(s.impl(), rule); |
| } |
| } |
| |
| void ScopedStyleResolver::collectMatchingAuthorRules(ElementRuleCollector& collector, CascadeOrder cascadeOrder) |
| { |
| for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) { |
| ASSERT(m_authorStyleSheets[i]->ownerNode()); |
| MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ruleSet(), &m_scope->rootNode(), m_authorStyleSheets[i], i); |
| collector.collectMatchingRules(matchRequest, cascadeOrder); |
| } |
| } |
| |
| void ScopedStyleResolver::collectMatchingShadowHostRules(ElementRuleCollector& collector, CascadeOrder cascadeOrder) |
| { |
| for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) { |
| ASSERT(m_authorStyleSheets[i]->ownerNode()); |
| MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ruleSet(), &m_scope->rootNode(), m_authorStyleSheets[i], i); |
| collector.collectMatchingShadowHostRules(matchRequest, cascadeOrder); |
| } |
| } |
| |
| void ScopedStyleResolver::collectMatchingTreeBoundaryCrossingRules(ElementRuleCollector& collector, CascadeOrder cascadeOrder) |
| { |
| for (const auto& rules : *m_treeBoundaryCrossingRuleSet) { |
| MatchRequest request(rules->m_ruleSet.get(), &treeScope().rootNode(), rules->m_parentStyleSheet, rules->m_parentIndex); |
| collector.collectMatchingRules(request, cascadeOrder, true); |
| } |
| } |
| |
| void ScopedStyleResolver::matchPageRules(PageRuleCollector& collector) |
| { |
| // Only consider the global author RuleSet for @page rules, as per the HTML5 spec. |
| ASSERT(m_scope->rootNode().isDocumentNode()); |
| for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) |
| collector.matchPageRules(&m_authorStyleSheets[i]->contents()->ruleSet()); |
| } |
| |
| void ScopedStyleResolver::collectViewportRulesTo(ViewportStyleResolver* resolver) const |
| { |
| if (!m_scope->rootNode().isDocumentNode()) |
| return; |
| for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) |
| resolver->collectViewportRules(&m_authorStyleSheets[i]->contents()->ruleSet(), ViewportStyleResolver::AuthorOrigin); |
| } |
| |
| DEFINE_TRACE(ScopedStyleResolver) |
| { |
| #if ENABLE(OILPAN) |
| visitor->trace(m_scope); |
| visitor->trace(m_authorStyleSheets); |
| visitor->trace(m_keyframesRuleMap); |
| visitor->trace(m_treeBoundaryCrossingRuleSet); |
| #endif |
| } |
| |
| static void addRules(RuleSet* ruleSet, const WillBeHeapVector<MinimalRuleData>& rules) |
| { |
| for (unsigned i = 0; i < rules.size(); ++i) { |
| const MinimalRuleData& info = rules[i]; |
| ruleSet->addRule(info.m_rule, info.m_selectorIndex, info.m_flags); |
| } |
| } |
| |
| void ScopedStyleResolver::addTreeBoundaryCrossingRules(const RuleSet& authorRules, CSSStyleSheet* parentStyleSheet, unsigned sheetIndex) |
| { |
| bool isDocumentScope = treeScope().rootNode().isDocumentNode(); |
| if (authorRules.deepCombinatorOrShadowPseudoRules().isEmpty() |
| && (isDocumentScope || (authorRules.shadowDistributedRules().isEmpty() && authorRules.shadowSlottedRules().isEmpty()))) |
| return; |
| |
| if (!authorRules.deepCombinatorOrShadowPseudoRules().isEmpty()) |
| m_hasDeepOrShadowSelector = true; |
| |
| OwnPtrWillBeRawPtr<RuleSet> ruleSetForScope = RuleSet::create(); |
| addRules(ruleSetForScope.get(), authorRules.deepCombinatorOrShadowPseudoRules()); |
| |
| if (!isDocumentScope) { |
| addRules(ruleSetForScope.get(), authorRules.shadowDistributedRules()); |
| addRules(ruleSetForScope.get(), authorRules.shadowSlottedRules()); |
| } |
| |
| if (!m_treeBoundaryCrossingRuleSet) { |
| m_treeBoundaryCrossingRuleSet = adoptPtrWillBeNoop(new CSSStyleSheetRuleSubSet()); |
| treeScope().document().styleResolver()->addTreeBoundaryCrossingScope(treeScope().rootNode()); |
| } |
| |
| m_treeBoundaryCrossingRuleSet->append(RuleSubSet::create(parentStyleSheet, sheetIndex, ruleSetForScope.release())); |
| } |
| |
| DEFINE_TRACE(ScopedStyleResolver::RuleSubSet) |
| { |
| visitor->trace(m_parentStyleSheet); |
| visitor->trace(m_ruleSet); |
| } |
| |
| } // namespace blink |