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* Copyright (C) 2010 Google Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "ClassList.h"
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#include "HTMLParserIdioms.h"
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#include "SpaceSplitString.h"
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#include <wtf/text/StringBuilder.h>
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ClassList::ClassList(Element* element) : m_element(element) { }
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void ClassList::deref()
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unsigned ClassList::length() const
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return m_element->hasClass() ? classNames().size() : 0;
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const AtomicString ClassList::item(unsigned index) const
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if (index >= length())
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return AtomicString();
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return classNames()[index];
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bool ClassList::containsInternal(const AtomicString& token) const
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return m_element->hasClass() && classNames().contains(token);
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void ClassList::reset(const String& newClassName)
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if (m_element->document()->inQuirksMode())
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m_classNamesForQuirksMode = adoptPtr(new SpaceSplitString(newClassName, false));
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const SpaceSplitString& ClassList::classNames() const
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ASSERT(m_element->hasClass());
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if (m_element->document()->inQuirksMode()) {
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if (!m_classNamesForQuirksMode)
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m_classNamesForQuirksMode = adoptPtr(new SpaceSplitString(value(), false));
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return *m_classNamesForQuirksMode.get();
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return m_element->attributeData()->classNames();
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} // namespace WebCore