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28 #include "core/dom/StyleSheetCandidate.h"
30 #include "core/HTMLNames.h"
31 #include "core/dom/Element.h"
32 #include "core/dom/ProcessingInstruction.h"
33 #include "core/dom/StyleEngine.h"
34 #include "core/html/HTMLLinkElement.h"
35 #include "core/html/HTMLStyleElement.h"
36 #include "core/html/imports/HTMLImport.h"
37 #include "core/svg/SVGStyleElement.h"
41 using namespace HTMLNames;
43 AtomicString StyleSheetCandidate::title() const
45 return isElement() ? toElement(node()).fastGetAttribute(titleAttr) : nullAtom;
48 bool StyleSheetCandidate::isXSL() const
50 return !node().document().isHTMLDocument() && m_type == Pi && toProcessingInstruction(node()).isXSL();
53 bool StyleSheetCandidate::isImport() const
55 return m_type == HTMLLink && toHTMLLinkElement(node()).isImport();
58 Document* StyleSheetCandidate::importedDocument() const
61 return toHTMLLinkElement(node()).import();
64 bool StyleSheetCandidate::isAlternate() const
68 return toElement(node()).getAttribute(relAttr).contains("alternate");
71 bool StyleSheetCandidate::isEnabledViaScript() const
73 return isHTMLLink() && toHTMLLinkElement(node()).isEnabledViaScript();
76 bool StyleSheetCandidate::isEnabledAndLoading() const
78 return isHTMLLink() && !toHTMLLinkElement(node()).isDisabled() && toHTMLLinkElement(node()).styleSheetIsLoading();
81 bool StyleSheetCandidate::hasPreferrableName(const String& currentPreferrableName) const
83 ASSERT(isEnabledAndLoading() || sheet());
84 return !isEnabledViaScript() && !title().isEmpty() && !isAlternate() && currentPreferrableName.isEmpty();
87 bool StyleSheetCandidate::canBeActivated(const String& currentPreferrableName) const
89 StyleSheet* sheet = this->sheet();
90 if (!sheet || sheet->disabled() || !sheet->isCSSStyleSheet())
92 const AtomicString& title = this->title();
93 if (!isEnabledViaScript() && !title.isEmpty() && title != currentPreferrableName)
95 if (isAlternate() && title.isEmpty())
101 StyleSheetCandidate::Type StyleSheetCandidate::typeOf(Node& node)
103 if (node.nodeType() == Node::PROCESSING_INSTRUCTION_NODE)
106 if (node.isHTMLElement()) {
107 if (isHTMLLinkElement(node))
109 if (isHTMLStyleElement(node))
112 ASSERT_NOT_REACHED();
116 if (isSVGStyleElement(node))
119 ASSERT_NOT_REACHED();
123 StyleSheet* StyleSheetCandidate::sheet() const
127 return toHTMLLinkElement(node()).sheet();
129 return toHTMLStyleElement(node()).sheet();
131 return toSVGStyleElement(node()).sheet();
133 return toProcessingInstruction(node()).sheet();
136 ASSERT_NOT_REACHED();