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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 |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #include "core/css/invalidation/StyleSheetInvalidationAnalysis.h" | 26 #include "core/css/invalidation/StyleSheetInvalidationAnalysis.h" |
27 | 27 |
| 28 #include "core/animation/AnimationTimeline.h" |
28 #include "core/css/CSSSelectorList.h" | 29 #include "core/css/CSSSelectorList.h" |
29 #include "core/css/StyleRuleImport.h" | 30 #include "core/css/StyleRuleImport.h" |
30 #include "core/css/StyleSheetContents.h" | 31 #include "core/css/StyleSheetContents.h" |
31 #include "core/dom/ContainerNode.h" | 32 #include "core/dom/ContainerNode.h" |
32 #include "core/dom/Document.h" | 33 #include "core/dom/Document.h" |
33 #include "core/dom/ElementTraversal.h" | 34 #include "core/dom/ElementTraversal.h" |
34 #include "core/dom/StyleChangeReason.h" | 35 #include "core/dom/StyleChangeReason.h" |
35 #include "core/dom/TreeScope.h" | 36 #include "core/dom/TreeScope.h" |
36 #include "core/dom/shadow/ShadowRoot.h" | 37 #include "core/dom/shadow/ShadowRoot.h" |
37 #include "core/html/HTMLStyleElement.h" | 38 #include "core/html/HTMLStyleElement.h" |
(...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
70 if (scopeSelector->match() == CSSSelector::Id) | 71 if (scopeSelector->match() == CSSSelector::Id) |
71 idScopes.add(scopeSelector->value().impl()); | 72 idScopes.add(scopeSelector->value().impl()); |
72 else | 73 else |
73 classScopes.add(scopeSelector->value().impl()); | 74 classScopes.add(scopeSelector->value().impl()); |
74 } | 75 } |
75 return true; | 76 return true; |
76 } | 77 } |
77 | 78 |
78 static bool ruleAdditionMightRequireDocumentStyleRecalc(StyleRuleBase* rule) | 79 static bool ruleAdditionMightRequireDocumentStyleRecalc(StyleRuleBase* rule) |
79 { | 80 { |
80 // This funciton is conservative. We only return false when we know that | 81 // This function is conservative. We only return false when we know that |
81 // the added @rule can't require style recalcs. | 82 // the added @rule can't require style recalcs. |
82 switch (rule->type()) { | 83 switch (rule->type()) { |
83 case StyleRule::Import: // Whatever we import should do its own analysis, we
don't need to invalidate the document here! | 84 case StyleRule::Import: // Whatever we import should do its own analysis, we
don't need to invalidate the document here! |
84 case StyleRule::Page: // Page rules apply only during printing, we force a f
ull-recalc before printing. | 85 case StyleRule::Page: // Page rules apply only during printing, we force a f
ull-recalc before printing. |
85 return false; | 86 return false; |
86 | 87 |
87 case StyleRule::Media: // If the media rule doesn't apply, we could avoid re
calc. | 88 case StyleRule::Media: // If the media rule doesn't apply, we could avoid re
calc. |
88 case StyleRule::FontFace: // If the fonts aren't in use, we could avoid reca
lc. | 89 case StyleRule::FontFace: // If the fonts aren't in use, we could avoid reca
lc. |
89 case StyleRule::Supports: // If we evaluated the supports-clause we could av
oid recalc. | 90 case StyleRule::Supports: // If we evaluated the supports-clause we could av
oid recalc. |
90 case StyleRule::Viewport: // If the viewport doesn't match, we could avoid r
ecalcing. | 91 case StyleRule::Viewport: // If the viewport doesn't match, we could avoid r
ecalcing. |
91 case StyleRule::Keyframes: // If the animation doesn't match an element, we
could avoid recalc. | |
92 return true; | 92 return true; |
93 | 93 |
94 // These should all be impossible to reach: | 94 // These should all be impossible to reach: |
95 case StyleRule::Charset: | 95 case StyleRule::Charset: |
96 case StyleRule::Keyframe: | 96 case StyleRule::Keyframe: |
97 case StyleRule::Namespace: | 97 case StyleRule::Namespace: |
98 case StyleRule::Style: | 98 case StyleRule::Style: |
| 99 case StyleRule::Keyframes: |
99 break; | 100 break; |
100 } | 101 } |
101 ASSERT_NOT_REACHED(); | 102 ASSERT_NOT_REACHED(); |
102 return true; | 103 return true; |
103 } | 104 } |
104 | 105 |
105 void StyleSheetInvalidationAnalysis::analyzeStyleSheet(StyleSheetContents* style
SheetContents) | 106 void StyleSheetInvalidationAnalysis::analyzeStyleSheet(StyleSheetContents* style
SheetContents) |
106 { | 107 { |
107 // Updating the style on the shadow DOM for image fallback content can bring
us here when imports | 108 // Updating the style on the shadow DOM for image fallback content can bring
us here when imports |
108 // are still getting loaded in the main document. Just need to exit early as
we will return here | 109 // are still getting loaded in the main document. Just need to exit early as
we will return here |
(...skipping 12 matching lines...) Expand all Loading... |
121 return; | 122 return; |
122 } | 123 } |
123 | 124 |
124 if (m_treeScope->rootNode().isShadowRoot()) | 125 if (m_treeScope->rootNode().isShadowRoot()) |
125 return; | 126 return; |
126 | 127 |
127 const HeapVector<Member<StyleRuleBase>>& rules = styleSheetContents->childRu
les(); | 128 const HeapVector<Member<StyleRuleBase>>& rules = styleSheetContents->childRu
les(); |
128 for (unsigned i = 0; i < rules.size(); i++) { | 129 for (unsigned i = 0; i < rules.size(); i++) { |
129 StyleRuleBase* rule = rules[i].get(); | 130 StyleRuleBase* rule = rules[i].get(); |
130 if (!rule->isStyleRule()) { | 131 if (!rule->isStyleRule()) { |
| 132 if (rule->type() == StyleRule::Keyframes) { |
| 133 m_addsKeyframes = true; |
| 134 continue; |
| 135 } |
131 if (ruleAdditionMightRequireDocumentStyleRecalc(rule)) { | 136 if (ruleAdditionMightRequireDocumentStyleRecalc(rule)) { |
132 m_dirtiesAllStyle = true; | 137 m_dirtiesAllStyle = true; |
133 return; | 138 return; |
134 } | 139 } |
135 continue; | 140 continue; |
136 } | 141 } |
137 StyleRule* styleRule = toStyleRule(rule); | 142 StyleRule* styleRule = toStyleRule(rule); |
138 if (!determineSelectorScopes(styleRule->selectorList(), m_idScopes, m_cl
assScopes)) { | 143 if (!determineSelectorScopes(styleRule->selectorList(), m_idScopes, m_cl
assScopes)) { |
139 m_dirtiesAllStyle = true; | 144 m_dirtiesAllStyle = true; |
140 return; | 145 return; |
(...skipping 12 matching lines...) Expand all Loading... |
153 if (classScopes.contains(classNames[i].impl())) | 158 if (classScopes.contains(classNames[i].impl())) |
154 return true; | 159 return true; |
155 } | 160 } |
156 return false; | 161 return false; |
157 } | 162 } |
158 | 163 |
159 void StyleSheetInvalidationAnalysis::invalidateStyle() | 164 void StyleSheetInvalidationAnalysis::invalidateStyle() |
160 { | 165 { |
161 ASSERT(!m_dirtiesAllStyle); | 166 ASSERT(!m_dirtiesAllStyle); |
162 | 167 |
| 168 if (m_addsKeyframes) |
| 169 m_treeScope->document().timeline().keyframesRulesAdded(); |
| 170 |
163 if (m_treeScope->rootNode().isShadowRoot()) { | 171 if (m_treeScope->rootNode().isShadowRoot()) { |
164 ContainerNode& shadowHost = toShadowRoot(m_treeScope->rootNode()).host()
; | 172 ContainerNode& shadowHost = toShadowRoot(m_treeScope->rootNode()).host()
; |
165 shadowHost.setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForT
racing::create(StyleChangeReason::StyleSheetChange)); | 173 shadowHost.setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForT
racing::create(StyleChangeReason::StyleSheetChange)); |
166 return; | 174 return; |
167 } | 175 } |
168 | 176 |
169 if (m_idScopes.isEmpty() && m_classScopes.isEmpty()) | 177 if (m_idScopes.isEmpty() && m_classScopes.isEmpty()) |
170 return; | 178 return; |
171 Element* element = ElementTraversal::firstWithin(m_treeScope->document()); | 179 Element* element = ElementTraversal::firstWithin(m_treeScope->document()); |
172 while (element) { | 180 while (element) { |
173 if (elementMatchesSelectorScopes(element, m_idScopes, m_classScopes)) { | 181 if (elementMatchesSelectorScopes(element, m_idScopes, m_classScopes)) { |
174 element->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonFo
rTracing::create(StyleChangeReason::StyleSheetChange)); | 182 element->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonFo
rTracing::create(StyleChangeReason::StyleSheetChange)); |
175 // The whole subtree is now invalidated, we can skip to the next sib
ling. | 183 // The whole subtree is now invalidated, we can skip to the next sib
ling. |
176 element = ElementTraversal::nextSkippingChildren(*element); | 184 element = ElementTraversal::nextSkippingChildren(*element); |
177 continue; | 185 continue; |
178 } | 186 } |
179 element = ElementTraversal::next(*element); | 187 element = ElementTraversal::next(*element); |
180 } | 188 } |
181 } | 189 } |
182 | 190 |
183 } // namespace blink | 191 } // namespace blink |
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