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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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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; |
51 // This picks the widest scope, not the narrowest, to minimize the numbe
r of found scopes. | 51 // This picks the widest scope, not the narrowest, to minimize the numbe
r of found scopes. |
52 for (const CSSSelector* current = selector; current; current = current->
tagHistory()) { | 52 for (const CSSSelector* current = selector; current; current = current->
tagHistory()) { |
53 // Prefer ids over classes. | 53 // Prefer ids over classes. |
54 if (current->match() == CSSSelector::Id) | 54 if (current->match() == CSSSelector::Id) |
55 scopeSelector = current; | 55 scopeSelector = current; |
56 else if (current->match() == CSSSelector::Class && (!scopeSelector |
| scopeSelector->match() != CSSSelector::Id)) | 56 else if (current->match() == CSSSelector::Class && (!scopeSelector |
| scopeSelector->match() != CSSSelector::Id)) |
57 scopeSelector = current; | 57 scopeSelector = current; |
58 CSSSelector::Relation relation = current->relation(); | 58 CSSSelector::RelationType relation = current->relation(); |
59 // FIXME: it would be better to use setNeedsStyleRecalc for all shad
ow hosts matching | 59 // FIXME: it would be better to use setNeedsStyleRecalc for all shad
ow hosts matching |
60 // scopeSelector. Currently requests full style recalc. | 60 // scopeSelector. Currently requests full style recalc. |
61 if (relation == CSSSelector::ShadowDeep || relation == CSSSelector::
ShadowPseudo) | 61 if (relation == CSSSelector::ShadowDeep || relation == CSSSelector::
ShadowPseudo) |
62 return false; | 62 return false; |
63 if (relation != CSSSelector::Descendant && relation != CSSSelector::
Child && relation != CSSSelector::SubSelector) | 63 if (relation != CSSSelector::Descendant && relation != CSSSelector::
Child && relation != CSSSelector::SubSelector) |
64 break; | 64 break; |
65 } | 65 } |
66 if (!scopeSelector) | 66 if (!scopeSelector) |
67 return false; | 67 return false; |
68 ASSERT(scopeSelector->match() == CSSSelector::Class || scopeSelector->ma
tch() == CSSSelector::Id); | 68 ASSERT(scopeSelector->match() == CSSSelector::Class || scopeSelector->ma
tch() == CSSSelector::Id); |
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173 element->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonFo
rTracing::create(StyleChangeReason::StyleSheetChange)); | 173 element->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonFo
rTracing::create(StyleChangeReason::StyleSheetChange)); |
174 // The whole subtree is now invalidated, we can skip to the next sib
ling. | 174 // The whole subtree is now invalidated, we can skip to the next sib
ling. |
175 element = ElementTraversal::nextSkippingChildren(*element); | 175 element = ElementTraversal::nextSkippingChildren(*element); |
176 continue; | 176 continue; |
177 } | 177 } |
178 element = ElementTraversal::next(*element); | 178 element = ElementTraversal::next(*element); |
179 } | 179 } |
180 } | 180 } |
181 | 181 |
182 } // namespace blink | 182 } // namespace blink |
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