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This CL generated by |sed -i '/sky\/engine\/config.h/d'| and a manual sweep to catch some oddballs. TBR=eseidel@chromium.org Review URL: https://codereview.chromium.org/1206763002.
108 lines
3.7 KiB
C++
108 lines
3.7 KiB
C++
/*
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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 are
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* met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/core/dom/shadow/SelectRuleFeatureSet.h"
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#include "sky/engine/core/css/CSSSelector.h"
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#include "sky/engine/wtf/BitVector.h"
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namespace blink {
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SelectRuleFeatureSet::SelectRuleFeatureSet()
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{
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}
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void SelectRuleFeatureSet::add(const SelectRuleFeatureSet& featureSet)
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{
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m_cssRuleFeatureSet.add(featureSet.m_cssRuleFeatureSet);
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}
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void SelectRuleFeatureSet::clear()
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{
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m_cssRuleFeatureSet.clear();
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}
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void SelectRuleFeatureSet::collectFeaturesFromSelector(const CSSSelector& selector)
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{
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m_cssRuleFeatureSet.collectFeaturesFromSelector(selector);
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}
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bool SelectRuleFeatureSet::checkSelectorsForClassChange(const SpaceSplitString& changedClasses) const
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{
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unsigned changedSize = changedClasses.size();
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for (unsigned i = 0; i < changedSize; ++i) {
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if (hasSelectorForClass(changedClasses[i]))
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return true;
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}
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return false;
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}
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bool SelectRuleFeatureSet::checkSelectorsForClassChange(const SpaceSplitString& oldClasses, const SpaceSplitString& newClasses) const
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{
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if (!oldClasses.size())
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return checkSelectorsForClassChange(newClasses);
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// Class vectors tend to be very short. This is faster than using a hash table.
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BitVector remainingClassBits;
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remainingClassBits.ensureSize(oldClasses.size());
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for (unsigned i = 0; i < newClasses.size(); ++i) {
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bool found = false;
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for (unsigned j = 0; j < oldClasses.size(); ++j) {
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if (newClasses[i] == oldClasses[j]) {
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// Mark each class that is still in the newClasses so we can skip doing
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// an n^2 search below when looking for removals. We can't break from
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// this loop early since a class can appear more than once.
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remainingClassBits.quickSet(j);
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found = true;
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}
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}
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// Class was added.
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if (!found) {
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if (hasSelectorForClass(newClasses[i]))
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return true;
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}
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}
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for (unsigned i = 0; i < oldClasses.size(); ++i) {
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if (remainingClassBits.quickGet(i))
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continue;
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// Class was removed.
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if (hasSelectorForClass(oldClasses[i]))
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return true;
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}
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return false;
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}
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}
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