Merge ClassList into DOMTokenList.

sky/engine/core/dom/DOMTokenList.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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 #include "sky/engine/config.h"
 #include "sky/engine/core/dom/DOMTokenList.h"
 
 #include "sky/engine/bindings/core/v8/ExceptionState.h"
+#include "sky/engine/core/dom/Document.h"
+#include "sky/engine/core/dom/Element.h"
 #include "sky/engine/core/dom/ExceptionCode.h"
+#include "sky/engine/core/dom/SpaceSplitString.h"
 #include "sky/engine/core/html/parser/HTMLParserIdioms.h"
 #include "sky/engine/wtf/text/StringBuilder.h"
 
 namespace blink {
 
+DOMTokenList::DOMTokenList(Element& element)
+    : m_element(&element)
+{
+}
+
+void DOMTokenList::ref()
+{
+    m_element->ref();
+}
+
+void DOMTokenList::deref()
+{
+    m_element->deref();
+}
+
+unsigned DOMTokenList::length() const
+{
+    return m_element->hasClass() ? classNames().size() : 0;
+}
+
+const AtomicString DOMTokenList::item(unsigned index) const
+{
+    if (index >= length())
+        return AtomicString();
+    return classNames()[index];
+}
+
+bool DOMTokenList::containsInternal(const AtomicString& token) const
+{
+    return m_element->hasClass() && classNames().contains(token);
+}
+
+const SpaceSplitString& DOMTokenList::classNames() const
+{
+    ASSERT(m_element->hasClass());
+    return m_element->classNames();
+}
+
+const AtomicString& DOMTokenList::value() const
+{
+    return m_element->getAttribute(HTMLNames::classAttr);
+}
+
+void DOMTokenList::setValue(const AtomicString& value)
+{
+    m_element->setAttribute(HTMLNames::classAttr, value);
+}
+
 bool DOMTokenList::validateToken(const String& token, ExceptionState& exceptionState)
 {
     if (token.isEmpty()) {
         exceptionState.throwDOMException(SyntaxError, "The token provided must not be empty.");
         return false;
     }
 
     if (token.find(isHTMLSpace) != kNotFound) {
         exceptionState.throwDOMException(InvalidCharacterError, "The token provided ('" + token + "') contains HTML space characters, which are not valid in tokens.");
         return false;
@@ skipping 195 matching lines @@
                 output.append(' ');
         } else {
             output.append(token); // Step 9
         }
     }
 
     return output.toAtomicString();
 }
 
 } // namespace blink