1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. 4 * Copyright (C) 2013 Google Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef MatchResult_h 24 #define MatchResult_h 25 26 #include "core/css/RuleSet.h" 27 #include "core/css/SelectorChecker.h" 28 #include "wtf/RefPtr.h" 29 #include "wtf/Vector.h" 30 31 namespace WebCore { 32 33 class StylePropertySet; 34 class StyleRule; 35 36 struct RuleRange { RuleRangeRuleRange37 RuleRange(int& firstRuleIndex, int& lastRuleIndex): firstRuleIndex(firstRuleIndex), lastRuleIndex(lastRuleIndex) { } 38 int& firstRuleIndex; 39 int& lastRuleIndex; 40 }; 41 42 struct MatchRanges { MatchRangesMatchRanges43 MatchRanges() : firstUARule(-1), lastUARule(-1), firstAuthorRule(-1), lastAuthorRule(-1), firstUserRule(-1), lastUserRule(-1) { } 44 int firstUARule; 45 int lastUARule; 46 int firstAuthorRule; 47 int lastAuthorRule; 48 int firstUserRule; 49 int lastUserRule; UARuleRangeMatchRanges50 RuleRange UARuleRange() { return RuleRange(firstUARule, lastUARule); } authorRuleRangeMatchRanges51 RuleRange authorRuleRange() { return RuleRange(firstAuthorRule, lastAuthorRule); } userRuleRangeMatchRanges52 RuleRange userRuleRange() { return RuleRange(firstUserRule, lastUserRule); } 53 }; 54 55 struct MatchedProperties { 56 MatchedProperties(); 57 ~MatchedProperties(); 58 59 RefPtr<StylePropertySet> properties; 60 union { 61 struct { 62 unsigned linkMatchType : 2; 63 unsigned whitelistType : 2; 64 }; 65 // Used to make sure all memory is zero-initialized since we compute the hash over the bytes of this object. 66 void* possiblyPaddedMember; 67 }; 68 }; 69 70 struct MatchResult { MatchResultMatchResult71 MatchResult() : isCacheable(true) { } 72 Vector<MatchedProperties, 64> matchedProperties; 73 Vector<StyleRule*, 64> matchedRules; 74 MatchRanges ranges; 75 bool isCacheable; 76 77 void addMatchedProperties(const StylePropertySet* properties, StyleRule* = 0, unsigned linkMatchType = SelectorChecker::MatchAll, PropertyWhitelistType = PropertyWhitelistNone); 78 }; 79 80 inline bool operator==(const MatchRanges& a, const MatchRanges& b) 81 { 82 return a.firstUARule == b.firstUARule 83 && a.lastUARule == b.lastUARule 84 && a.firstAuthorRule == b.firstAuthorRule 85 && a.lastAuthorRule == b.lastAuthorRule 86 && a.firstUserRule == b.firstUserRule 87 && a.lastUserRule == b.lastUserRule; 88 } 89 90 inline bool operator!=(const MatchRanges& a, const MatchRanges& b) 91 { 92 return !(a == b); 93 } 94 95 inline bool operator==(const MatchedProperties& a, const MatchedProperties& b) 96 { 97 return a.properties == b.properties && a.linkMatchType == b.linkMatchType; 98 } 99 100 inline bool operator!=(const MatchedProperties& a, const MatchedProperties& b) 101 { 102 return !(a == b); 103 } 104 105 } // namespace WebCore 106 107 #endif // MatchResult_h 108