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26 #include "core/html/ClassList.h"
28 #include "core/dom/Document.h"
32 using namespace HTMLNames;
34 ClassList::ClassList(Element* element) : m_element(element) { }
42 void ClassList::deref()
48 unsigned ClassList::length() const
50 return m_element->hasClass() ? classNames().size() : 0;
53 const AtomicString ClassList::item(unsigned index) const
55 if (index >= length())
56 return AtomicString();
57 return classNames()[index];
60 bool ClassList::containsInternal(const AtomicString& token) const
62 return m_element->hasClass() && classNames().contains(token);
65 const SpaceSplitString& ClassList::classNames() const
67 ASSERT(m_element->hasClass());
68 if (m_element->document().inQuirksMode()) {
69 if (!m_classNamesForQuirksMode)
70 m_classNamesForQuirksMode = adoptPtr(new SpaceSplitString(value(), false));
71 return *m_classNamesForQuirksMode.get();
73 return m_element->classNames();
76 void ClassList::trace(Visitor* visitor)
78 visitor->trace(m_element);
79 DOMTokenList::trace(visitor);