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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/css/parser/CSSSelectorParser.h" | 5 #include "core/css/parser/CSSSelectorParser.h" |
6 | 6 |
7 #include "core/css/CSSSelectorList.h" | 7 #include "core/css/CSSSelectorList.h" |
8 #include "core/css/StyleSheetContents.h" | 8 #include "core/css/StyleSheetContents.h" |
9 #include "core/frame/UseCounter.h" | 9 #include "core/frame/UseCounter.h" |
10 #include "platform/RuntimeEnabledFeatures.h" | 10 #include "platform/RuntimeEnabledFeatures.h" |
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297 compoundPseudoElement = simpleSelector->pseudoType(); | 297 compoundPseudoElement = simpleSelector->pseudoType(); |
298 | 298 |
299 if (compoundSelector) | 299 if (compoundSelector) |
300 compoundSelector = addSimpleSelectorToCompound(compoundSelector.rele ase(), simpleSelector.release()); | 300 compoundSelector = addSimpleSelectorToCompound(compoundSelector.rele ase(), simpleSelector.release()); |
301 else | 301 else |
302 compoundSelector = simpleSelector.release(); | 302 compoundSelector = simpleSelector.release(); |
303 } | 303 } |
304 | 304 |
305 if (!compoundSelector) { | 305 if (!compoundSelector) { |
306 AtomicString namespaceURI = determineNamespace(namespacePrefix); | 306 AtomicString namespaceURI = determineNamespace(namespacePrefix); |
307 if (namespaceURI.isNull()) | 307 if (namespaceURI.isNull()) { |
308 m_failedParsing = true; | |
rune
2016/01/22 11:50:30
There's a separate CL (https://codereview.chromium
| |
308 return nullptr; | 309 return nullptr; |
310 } | |
309 return CSSParserSelector::create(QualifiedName(namespacePrefix, elementN ame, namespaceURI)); | 311 return CSSParserSelector::create(QualifiedName(namespacePrefix, elementN ame, namespaceURI)); |
310 } | 312 } |
311 prependTypeSelectorIfNeeded(namespacePrefix, elementName, compoundSelector.g et()); | 313 prependTypeSelectorIfNeeded(namespacePrefix, elementName, compoundSelector.g et()); |
312 return splitCompoundAtImplicitShadowCrossingCombinator(compoundSelector.rele ase()); | 314 return splitCompoundAtImplicitShadowCrossingCombinator(compoundSelector.rele ase()); |
313 } | 315 } |
314 | 316 |
315 PassOwnPtr<CSSParserSelector> CSSSelectorParser::consumeSimpleSelector(CSSParser TokenRange& range) | 317 PassOwnPtr<CSSParserSelector> CSSSelectorParser::consumeSimpleSelector(CSSParser TokenRange& range) |
316 { | 318 { |
317 const CSSParserToken& token = range.peek(); | 319 const CSSParserToken& token = range.peek(); |
318 OwnPtr<CSSParserSelector> selector; | 320 OwnPtr<CSSParserSelector> selector; |
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694 | 696 |
695 const AtomicString& CSSSelectorParser::defaultNamespace() const | 697 const AtomicString& CSSSelectorParser::defaultNamespace() const |
696 { | 698 { |
697 if (!m_styleSheet) | 699 if (!m_styleSheet) |
698 return starAtom; | 700 return starAtom; |
699 return m_styleSheet->defaultNamespace(); | 701 return m_styleSheet->defaultNamespace(); |
700 } | 702 } |
701 | 703 |
702 const AtomicString& CSSSelectorParser::determineNamespace(const AtomicString& pr efix) | 704 const AtomicString& CSSSelectorParser::determineNamespace(const AtomicString& pr efix) |
703 { | 705 { |
706 if (prefix.isNull()) | |
707 return defaultNamespace(); | |
708 if (prefix.isEmpty()) | |
709 return emptyAtom; // No namespace. If an element/attribute has a namespa ce, we won't match it. | |
710 if (prefix == starAtom) | |
711 return starAtom; // We'll match any namespace. | |
704 if (!m_styleSheet) | 712 if (!m_styleSheet) |
705 return defaultNamespace(); | 713 return nullAtom; // Cannot resolve prefix to namespace without a stylesh eet, syntax error. |
706 return m_styleSheet->determineNamespace(prefix); | 714 return m_styleSheet->namespaceURIFromPrefix(prefix); |
707 } | 715 } |
708 | 716 |
709 void CSSSelectorParser::prependTypeSelectorIfNeeded(const AtomicString& namespac ePrefix, const AtomicString& elementName, CSSParserSelector* compoundSelector) | 717 void CSSSelectorParser::prependTypeSelectorIfNeeded(const AtomicString& namespac ePrefix, const AtomicString& elementName, CSSParserSelector* compoundSelector) |
710 { | 718 { |
711 if (elementName.isNull() && defaultNamespace() == starAtom && !compoundSelec tor->needsImplicitShadowCombinatorForMatching()) | 719 if (elementName.isNull() && defaultNamespace() == starAtom && !compoundSelec tor->needsImplicitShadowCombinatorForMatching()) |
712 return; | 720 return; |
713 | 721 |
714 AtomicString determinedElementName = elementName.isNull() ? starAtom : eleme ntName; | 722 AtomicString determinedElementName = elementName.isNull() ? starAtom : eleme ntName; |
715 AtomicString namespaceURI = determineNamespace(namespacePrefix); | 723 AtomicString namespaceURI = determineNamespace(namespacePrefix); |
716 if (namespaceURI.isNull()) { | 724 if (namespaceURI.isNull()) { |
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763 | 771 |
764 if (!splitAfter || !splitAfter->tagHistory()) | 772 if (!splitAfter || !splitAfter->tagHistory()) |
765 return compoundSelector; | 773 return compoundSelector; |
766 | 774 |
767 OwnPtr<CSSParserSelector> secondCompound = splitAfter->releaseTagHistory(); | 775 OwnPtr<CSSParserSelector> secondCompound = splitAfter->releaseTagHistory(); |
768 secondCompound->appendTagHistory(secondCompound->pseudoType() == CSSSelector ::PseudoSlotted ? CSSSelector::ShadowSlot : CSSSelector::ShadowPseudo, compoundS elector); | 776 secondCompound->appendTagHistory(secondCompound->pseudoType() == CSSSelector ::PseudoSlotted ? CSSSelector::ShadowSlot : CSSSelector::ShadowPseudo, compoundS elector); |
769 return secondCompound.release(); | 777 return secondCompound.release(); |
770 } | 778 } |
771 | 779 |
772 } // namespace blink | 780 } // namespace blink |
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