1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #include "config.h" 26 #include "core/html/ClassList.h" 27 28 #include "core/dom/SpaceSplitString.h" 29 30 namespace WebCore { 31 32 using namespace HTMLNames; 33 34 ClassList::ClassList(Element* element) : m_element(element) { } 35 36 void ClassList::ref() 37 { 38 m_element->ref(); 39 } 40 41 void ClassList::deref() 42 { 43 m_element->deref(); 44 } 45 46 unsigned ClassList::length() const 47 { 48 return m_element->hasClass() ? classNames().size() : 0; 49 } 50 51 const AtomicString ClassList::item(unsigned index) const 52 { 53 if (index >= length()) 54 return AtomicString(); 55 return classNames()[index]; 56 } 57 58 bool ClassList::containsInternal(const AtomicString& token) const 59 { 60 return m_element->hasClass() && classNames().contains(token); 61 } 62 63 const SpaceSplitString& ClassList::classNames() const 64 { 65 ASSERT(m_element->hasClass()); 66 if (m_element->document()->inQuirksMode()) { 67 if (!m_classNamesForQuirksMode) 68 m_classNamesForQuirksMode = adoptPtr(new SpaceSplitString(value(), false)); 69 return *m_classNamesForQuirksMode.get(); 70 } 71 return m_element->elementData()->classNames(); 72 } 73 74 } // namespace WebCore 75
