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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 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. | 3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
All rights reserved. |
4 * | 4 * |
5 * This library is free software; you can redistribute it and/or | 5 * This library is free software; you can redistribute it and/or |
6 * modify it under the terms of the GNU Library General Public | 6 * modify it under the terms of the GNU Library General Public |
7 * License as published by the Free Software Foundation; either | 7 * License as published by the Free Software Foundation; either |
8 * version 2 of the License, or (at your option) any later version. | 8 * version 2 of the License, or (at your option) any later version. |
9 * | 9 * |
10 * This library is distributed in the hope that it will be useful, | 10 * This library is distributed in the hope that it will be useful, |
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32 | 32 |
33 namespace blink { | 33 namespace blink { |
34 | 34 |
35 class CSSStyleSheet; | 35 class CSSStyleSheet; |
36 class CSSRuleList; | 36 class CSSRuleList; |
37 class RuleData; | 37 class RuleData; |
38 class RuleSet; | 38 class RuleSet; |
39 class SelectorFilter; | 39 class SelectorFilter; |
40 class StaticCSSRuleList; | 40 class StaticCSSRuleList; |
41 | 41 |
| 42 // TODO(kochi): CascadeOrder is used only for Shadow DOM V0 bug-compatible casca
ding order. |
| 43 // Once Shadow DOM V0 implementation is gone, remove this completel
y. |
42 using CascadeOrder = unsigned; | 44 using CascadeOrder = unsigned; |
43 | |
44 const CascadeOrder ignoreCascadeOrder = 0; | 45 const CascadeOrder ignoreCascadeOrder = 0; |
45 | 46 |
46 class MatchedRule { | 47 class MatchedRule { |
47 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); | 48 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); |
48 public: | 49 public: |
49 MatchedRule(const RuleData* ruleData, unsigned specificity, CascadeOrder cas
cadeOrder, unsigned styleSheetIndex, const CSSStyleSheet* parentStyleSheet) | 50 MatchedRule(const RuleData* ruleData, unsigned specificity, CascadeOrder cas
cadeOrder, unsigned styleSheetIndex, const CSSStyleSheet* parentStyleSheet) |
50 : m_ruleData(ruleData) | 51 : m_ruleData(ruleData) |
51 , m_specificity(specificity) | 52 , m_specificity(specificity) |
52 , m_parentStyleSheet(parentStyleSheet) | 53 , m_parentStyleSheet(parentStyleSheet) |
53 { | 54 { |
54 ASSERT(m_ruleData); | 55 ASSERT(m_ruleData); |
55 static const unsigned BitsForPositionInRuleData = 18; | 56 static const unsigned BitsForPositionInRuleData = 18; |
56 static const unsigned BitsForStyleSheetIndex = 32; | 57 static const unsigned BitsForStyleSheetIndex = 32; |
57 m_position = ((uint64_t)cascadeOrder << (BitsForStyleSheetIndex + BitsFo
rPositionInRuleData)) + ((uint64_t)styleSheetIndex << BitsForPositionInRuleData)
+ m_ruleData->position(); | 58 m_position = ((uint64_t)cascadeOrder << (BitsForStyleSheetIndex + BitsFo
rPositionInRuleData)) + ((uint64_t)styleSheetIndex << BitsForPositionInRuleData)
+ m_ruleData->position(); |
58 } | 59 } |
59 | 60 |
60 const RuleData* ruleData() const { return m_ruleData; } | 61 const RuleData* ruleData() const { return m_ruleData; } |
61 uint64_t position() const { return m_position; } | 62 uint64_t position() const { return m_position; } |
62 unsigned specificity() const { return ruleData()->specificity() + m_specific
ity; } | 63 unsigned specificity() const { return ruleData()->specificity() + m_specific
ity; } |
63 const CSSStyleSheet* parentStyleSheet() const { return m_parentStyleSheet; } | 64 const CSSStyleSheet* parentStyleSheet() const { return m_parentStyleSheet; } |
64 DEFINE_INLINE_TRACE() | 65 DEFINE_INLINE_TRACE() |
65 { | 66 { |
66 visitor->trace(m_parentStyleSheet); | 67 visitor->trace(m_parentStyleSheet); |
67 } | 68 } |
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122 | 123 |
123 void collectMatchingRules(const MatchRequest&, CascadeOrder = ignoreCascadeO
rder, bool matchingTreeBoundaryRules = false); | 124 void collectMatchingRules(const MatchRequest&, CascadeOrder = ignoreCascadeO
rder, bool matchingTreeBoundaryRules = false); |
124 void collectMatchingShadowHostRules(const MatchRequest&, CascadeOrder = igno
reCascadeOrder); | 125 void collectMatchingShadowHostRules(const MatchRequest&, CascadeOrder = igno
reCascadeOrder); |
125 void sortAndTransferMatchedRules(); | 126 void sortAndTransferMatchedRules(); |
126 void clearMatchedRules(); | 127 void clearMatchedRules(); |
127 void addElementStyleProperties(const StylePropertySet*, bool isCacheable = t
rue); | 128 void addElementStyleProperties(const StylePropertySet*, bool isCacheable = t
rue); |
128 void finishAddingUARules() { m_result.finishAddingUARules(); } | 129 void finishAddingUARules() { m_result.finishAddingUARules(); } |
129 void finishAddingAuthorRulesForTreeScope() { m_result.finishAddingAuthorRule
sForTreeScope(); } | 130 void finishAddingAuthorRulesForTreeScope() { m_result.finishAddingAuthorRule
sForTreeScope(); } |
130 void setIncludeEmptyRules(bool include) { m_includeEmptyRules = include; } | 131 void setIncludeEmptyRules(bool include) { m_includeEmptyRules = include; } |
131 bool includeEmptyRules() const { return m_includeEmptyRules; } | 132 bool includeEmptyRules() const { return m_includeEmptyRules; } |
| 133 bool isCollectingForPseudoElement() const { return m_pseudoStyleRequest.pseu
doId != PseudoIdNone; } |
132 | 134 |
133 private: | 135 private: |
134 template<typename RuleDataListType> | 136 template<typename RuleDataListType> |
135 void collectMatchingRulesForList(const RuleDataListType*, CascadeOrder, cons
t MatchRequest&); | 137 void collectMatchingRulesForList(const RuleDataListType*, CascadeOrder, cons
t MatchRequest&); |
136 | 138 |
137 void didMatchRule(const RuleData&, const SelectorChecker::MatchResult&, Casc
adeOrder, const MatchRequest&); | 139 void didMatchRule(const RuleData&, const SelectorChecker::MatchResult&, Casc
adeOrder, const MatchRequest&); |
138 | 140 |
139 template<class CSSRuleCollection> | 141 template<class CSSRuleCollection> |
140 CSSRule* findStyleRule(CSSRuleCollection*, StyleRule*); | 142 CSSRule* findStyleRule(CSSRuleCollection*, StyleRule*); |
141 void appendCSSOMWrapperForRule(CSSStyleSheet*, StyleRule*); | 143 void appendCSSOMWrapperForRule(CSSStyleSheet*, StyleRule*); |
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161 | 163 |
162 // Output. | 164 // Output. |
163 RefPtrWillBeMember<StaticCSSRuleList> m_cssRuleList; | 165 RefPtrWillBeMember<StaticCSSRuleList> m_cssRuleList; |
164 RefPtrWillBeMember<StyleRuleList> m_styleRuleList; | 166 RefPtrWillBeMember<StyleRuleList> m_styleRuleList; |
165 MatchResult m_result; | 167 MatchResult m_result; |
166 }; | 168 }; |
167 | 169 |
168 } // namespace blink | 170 } // namespace blink |
169 | 171 |
170 #endif // ElementRuleCollector_h | 172 #endif // ElementRuleCollector_h |
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