1 /* 2 * Copyright (C) 2012 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef SelectRuleFeatureSet_h 32 #define SelectRuleFeatureSet_h 33 34 #include "core/css/RuleFeature.h" 35 #include "core/dom/Element.h" 36 37 namespace WebCore { 38 39 class Element; 40 class SpaceSplitString; 41 42 class SelectRuleFeatureSet { 43 DISALLOW_ALLOCATION(); 44 public: 45 SelectRuleFeatureSet(); 46 47 void add(const SelectRuleFeatureSet&); 48 void clear(); 49 void collectFeaturesFromSelector(const CSSSelector&); 50 51 bool hasSelectorForId(const AtomicString&) const; 52 bool hasSelectorForClass(const AtomicString&) const; 53 bool hasSelectorForAttribute(const AtomicString&) const; 54 55 bool hasSelectorForChecked() const { return hasSelectorFor(AffectedSelectorChecked); } 56 bool hasSelectorForEnabled() const { return hasSelectorFor(AffectedSelectorEnabled); } 57 bool hasSelectorForDisabled() const { return hasSelectorFor(AffectedSelectorDisabled); } 58 bool hasSelectorForIndeterminate() const { return hasSelectorFor(AffectedSelectorIndeterminate); } 59 bool hasSelectorForLink() const { return hasSelectorFor(AffectedSelectorLink); } 60 bool hasSelectorForTarget() const { return hasSelectorFor(AffectedSelectorTarget); } 61 bool hasSelectorForVisited() const { return hasSelectorFor(AffectedSelectorVisited); } 62 63 bool hasSelectorFor(AffectedSelectorMask features) const { return m_featureFlags & features; } 64 65 bool checkSelectorsForClassChange(const SpaceSplitString& changedClasses) const; 66 bool checkSelectorsForClassChange(const SpaceSplitString& oldClasses, const SpaceSplitString& newClasses) const; 67 68 void trace(Visitor* visitor) { visitor->trace(m_cssRuleFeatureSet); } 69 70 private: 71 void setSelectRuleFeature(AffectedSelectorType feature) { m_featureFlags |= feature; } 72 73 RuleFeatureSet m_cssRuleFeatureSet; 74 int m_featureFlags; 75 }; 76 77 inline bool SelectRuleFeatureSet::hasSelectorForId(const AtomicString& idValue) const 78 { 79 ASSERT(!idValue.isEmpty()); 80 return m_cssRuleFeatureSet.hasSelectorForId(idValue); 81 } 82 83 inline bool SelectRuleFeatureSet::hasSelectorForClass(const AtomicString& classValue) const 84 { 85 ASSERT(!classValue.isEmpty()); 86 return m_cssRuleFeatureSet.hasSelectorForClass(classValue); 87 } 88 89 inline bool SelectRuleFeatureSet::hasSelectorForAttribute(const AtomicString& attributeName) const 90 { 91 ASSERT(!attributeName.isEmpty()); 92 return m_cssRuleFeatureSet.hasSelectorForAttribute(attributeName); 93 } 94 95 } 96 97 #endif 98
