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1 /* | 1 /* |
2 * Copyright (C) 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2012 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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30 #include "core/css/StyleRuleImport.h" | 30 #include "core/css/StyleRuleImport.h" |
31 #include "core/css/StyleSheetContents.h" | 31 #include "core/css/StyleSheetContents.h" |
32 #include "core/dom/ContainerNode.h" | 32 #include "core/dom/ContainerNode.h" |
33 #include "core/dom/Document.h" | 33 #include "core/dom/Document.h" |
34 #include "core/dom/ElementTraversal.h" | 34 #include "core/dom/ElementTraversal.h" |
35 #include "core/dom/shadow/ShadowRoot.h" | 35 #include "core/dom/shadow/ShadowRoot.h" |
36 #include "core/html/HTMLStyleElement.h" | 36 #include "core/html/HTMLStyleElement.h" |
37 | 37 |
38 namespace blink { | 38 namespace blink { |
39 | 39 |
40 StyleSheetInvalidationAnalysis::StyleSheetInvalidationAnalysis(const WillBeHeapV
ector<RawPtrWillBeMember<StyleSheetContents> >& sheets) | 40 StyleSheetInvalidationAnalysis::StyleSheetInvalidationAnalysis(const WillBeHeapV
ector<RawPtrWillBeMember<StyleSheetContents>>& sheets) |
41 : m_dirtiesAllStyle(false) | 41 : m_dirtiesAllStyle(false) |
42 { | 42 { |
43 for (unsigned i = 0; i < sheets.size() && !m_dirtiesAllStyle; ++i) | 43 for (unsigned i = 0; i < sheets.size() && !m_dirtiesAllStyle; ++i) |
44 analyzeStyleSheet(sheets[i]); | 44 analyzeStyleSheet(sheets[i]); |
45 } | 45 } |
46 | 46 |
47 static bool determineSelectorScopes(const CSSSelectorList& selectorList, HashSet
<StringImpl*>& idScopes, HashSet<StringImpl*>& classScopes) | 47 static bool determineSelectorScopes(const CSSSelectorList& selectorList, HashSet
<StringImpl*>& idScopes, HashSet<StringImpl*>& classScopes) |
48 { | 48 { |
49 for (const CSSSelector* selector = selectorList.first(); selector; selector
= CSSSelectorList::next(*selector)) { | 49 for (const CSSSelector* selector = selectorList.first(); selector; selector
= CSSSelectorList::next(*selector)) { |
50 const CSSSelector* scopeSelector = 0; | 50 const CSSSelector* scopeSelector = 0; |
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69 if (scopeSelector->match() == CSSSelector::Id) | 69 if (scopeSelector->match() == CSSSelector::Id) |
70 idScopes.add(scopeSelector->value().impl()); | 70 idScopes.add(scopeSelector->value().impl()); |
71 else | 71 else |
72 classScopes.add(scopeSelector->value().impl()); | 72 classScopes.add(scopeSelector->value().impl()); |
73 } | 73 } |
74 return true; | 74 return true; |
75 } | 75 } |
76 | 76 |
77 static bool hasDistributedRule(StyleSheetContents* styleSheetContents) | 77 static bool hasDistributedRule(StyleSheetContents* styleSheetContents) |
78 { | 78 { |
79 const WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase> >& rules = styleShe
etContents->childRules(); | 79 const WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase>>& rules = styleShee
tContents->childRules(); |
80 for (unsigned i = 0; i < rules.size(); i++) { | 80 for (unsigned i = 0; i < rules.size(); i++) { |
81 const StyleRuleBase* rule = rules[i].get(); | 81 const StyleRuleBase* rule = rules[i].get(); |
82 if (!rule->isStyleRule()) | 82 if (!rule->isStyleRule()) |
83 continue; | 83 continue; |
84 | 84 |
85 const StyleRule* styleRule = toStyleRule(rule); | 85 const StyleRule* styleRule = toStyleRule(rule); |
86 const CSSSelectorList& selectorList = styleRule->selectorList(); | 86 const CSSSelectorList& selectorList = styleRule->selectorList(); |
87 for (size_t selectorIndex = 0; selectorIndex != kNotFound; selectorIndex
= selectorList.indexOfNextSelectorAfter(selectorIndex)) { | 87 for (size_t selectorIndex = 0; selectorIndex != kNotFound; selectorIndex
= selectorList.indexOfNextSelectorAfter(selectorIndex)) { |
88 if (selectorList.hasShadowDistributedAt(selectorIndex)) | 88 if (selectorList.hasShadowDistributedAt(selectorIndex)) |
89 return true; | 89 return true; |
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137 void StyleSheetInvalidationAnalysis::analyzeStyleSheet(StyleSheetContents* style
SheetContents) | 137 void StyleSheetInvalidationAnalysis::analyzeStyleSheet(StyleSheetContents* style
SheetContents) |
138 { | 138 { |
139 // Updating the style on the shadow DOM for image fallback content can bring
us here when imports | 139 // Updating the style on the shadow DOM for image fallback content can bring
us here when imports |
140 // are still getting loaded in the main document. Just need to exit early as
we will return here | 140 // are still getting loaded in the main document. Just need to exit early as
we will return here |
141 // when the imports finish loading. | 141 // when the imports finish loading. |
142 if (styleSheetContents->isLoading()) | 142 if (styleSheetContents->isLoading()) |
143 return; | 143 return; |
144 | 144 |
145 // See if all rules on the sheet are scoped to some specific ids or classes. | 145 // See if all rules on the sheet are scoped to some specific ids or classes. |
146 // Then test if we actually have any of those in the tree at the moment. | 146 // Then test if we actually have any of those in the tree at the moment. |
147 const WillBeHeapVector<RefPtrWillBeMember<StyleRuleImport> >& importRules =
styleSheetContents->importRules(); | 147 const WillBeHeapVector<RefPtrWillBeMember<StyleRuleImport>>& importRules = s
tyleSheetContents->importRules(); |
148 for (unsigned i = 0; i < importRules.size(); ++i) { | 148 for (unsigned i = 0; i < importRules.size(); ++i) { |
149 if (!importRules[i]->styleSheet()) | 149 if (!importRules[i]->styleSheet()) |
150 continue; | 150 continue; |
151 analyzeStyleSheet(importRules[i]->styleSheet()); | 151 analyzeStyleSheet(importRules[i]->styleSheet()); |
152 if (m_dirtiesAllStyle) | 152 if (m_dirtiesAllStyle) |
153 return; | 153 return; |
154 } | 154 } |
155 if (styleSheetContents->hasSingleOwnerNode()) { | 155 if (styleSheetContents->hasSingleOwnerNode()) { |
156 Node* ownerNode = styleSheetContents->singleOwnerNode(); | 156 Node* ownerNode = styleSheetContents->singleOwnerNode(); |
157 if (isHTMLStyleElement(ownerNode) && toHTMLStyleElement(*ownerNode).isIn
ShadowTree()) { | 157 if (isHTMLStyleElement(ownerNode) && toHTMLStyleElement(*ownerNode).isIn
ShadowTree()) { |
158 m_scopingNodes.append(determineScopingNodeForStyleInShadow(toHTMLSty
leElement(ownerNode), styleSheetContents)); | 158 m_scopingNodes.append(determineScopingNodeForStyleInShadow(toHTMLSty
leElement(ownerNode), styleSheetContents)); |
159 return; | 159 return; |
160 } | 160 } |
161 } | 161 } |
162 | 162 |
163 const WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase> >& rules = styleShe
etContents->childRules(); | 163 const WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase>>& rules = styleShee
tContents->childRules(); |
164 for (unsigned i = 0; i < rules.size(); i++) { | 164 for (unsigned i = 0; i < rules.size(); i++) { |
165 StyleRuleBase* rule = rules[i].get(); | 165 StyleRuleBase* rule = rules[i].get(); |
166 if (!rule->isStyleRule()) { | 166 if (!rule->isStyleRule()) { |
167 if (ruleAdditionMightRequireDocumentStyleRecalc(rule)) { | 167 if (ruleAdditionMightRequireDocumentStyleRecalc(rule)) { |
168 m_dirtiesAllStyle = true; | 168 m_dirtiesAllStyle = true; |
169 return; | 169 return; |
170 } | 170 } |
171 continue; | 171 continue; |
172 } | 172 } |
173 StyleRule* styleRule = toStyleRule(rule); | 173 StyleRule* styleRule = toStyleRule(rule); |
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209 element->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonFo
rTracing::create(StyleChangeReason::StyleSheetChange)); | 209 element->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonFo
rTracing::create(StyleChangeReason::StyleSheetChange)); |
210 // The whole subtree is now invalidated, we can skip to the next sib
ling. | 210 // The whole subtree is now invalidated, we can skip to the next sib
ling. |
211 element = ElementTraversal::nextSkippingChildren(*element); | 211 element = ElementTraversal::nextSkippingChildren(*element); |
212 continue; | 212 continue; |
213 } | 213 } |
214 element = ElementTraversal::next(*element); | 214 element = ElementTraversal::next(*element); |
215 } | 215 } |
216 } | 216 } |
217 | 217 |
218 } | 218 } |
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