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Just linearly search for keyframes in the set of stylesheets. Components rarely have many sheets, and sheets rarely have many keyframes so this should be quite fast. It's also much simpler than having to collect all the keyframes from all the rulesets. R=ojan@chromium.org, rafaelw@chromium.org Review URL: https://codereview.chromium.org/839473005
94 lines
4.0 KiB
C++
94 lines
4.0 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/core/css/resolver/ScopedStyleResolver.h"
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#include "sky/engine/core/css/CSSStyleSheet.h"
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#include "sky/engine/core/css/RuleFeature.h"
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#include "sky/engine/core/css/StyleRule.h"
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#include "sky/engine/core/css/StyleSheetContents.h"
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#include "sky/engine/core/css/resolver/StyleResolver.h"
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#include "sky/engine/core/dom/Document.h"
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#include "sky/engine/core/dom/shadow/ElementShadow.h"
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#include "sky/engine/core/dom/shadow/ShadowRoot.h"
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#include "sky/engine/core/html/HTMLStyleElement.h"
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namespace blink {
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ScopedStyleResolver::ScopedStyleResolver(TreeScope& scope)
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: m_scope(scope)
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{
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}
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void ScopedStyleResolver::addRulesFromSheet(CSSStyleSheet* cssSheet, StyleResolver* resolver)
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{
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m_authorStyleSheets.append(cssSheet);
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unsigned index = m_authorStyleSheets.size() - 1;
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StyleSheetContents* sheet = cssSheet->contents();
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AddRuleFlags addRuleFlags = RuleHasNoSpecialState;
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const RuleSet& ruleSet = sheet->ensureRuleSet(addRuleFlags);
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resolver->addMediaQueryResults(ruleSet.viewportDependentMediaQueryResults());
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resolver->processScopedRules(ruleSet, cssSheet, index, treeScope().rootNode());
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m_features.add(ruleSet.features());
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}
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void ScopedStyleResolver::resetAuthorStyle()
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{
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m_authorStyleSheets.clear();
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m_features.clear();
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}
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const StyleRuleKeyframes* ScopedStyleResolver::keyframeStylesForAnimation(String animationName)
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{
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for (auto& sheet : m_authorStyleSheets) {
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// TODO(esprehn): Maybe just store the keyframes in a map?
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for (auto& rule : sheet->contents()->ruleSet().keyframesRules()) {
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if (rule->name() == animationName)
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return rule.get();
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}
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}
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return nullptr;
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}
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void ScopedStyleResolver::collectMatchingAuthorRules(ElementRuleCollector& collector, bool includeEmptyRules, bool applyAuthorStyles, CascadeScope cascadeScope, CascadeOrder cascadeOrder)
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{
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unsigned contextFlags = SelectorChecker::DefaultBehavior;
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if (!applyAuthorStyles)
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contextFlags |= SelectorChecker::ScopeContainsLastMatchedElement;
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RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
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for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) {
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MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ruleSet(), includeEmptyRules, &m_scope->rootNode(), m_authorStyleSheets[i], applyAuthorStyles, i);
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collector.collectMatchingRules(matchRequest, ruleRange, static_cast<SelectorChecker::ContextFlags>(contextFlags), cascadeScope, cascadeOrder);
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}
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}
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} // namespace blink
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