Merge Webkit at r70949: Initial merge by git.

Change-Id: I77b8645c083b5d0da8dba73ed01d4014aab9848e

1 files changed, 146 insertions, 0 deletions

diff --git a/WebCore/html/ClassList.cpp b/WebCore/html/ClassList.cpp
new file mode 100644
index 0000000..578601b
--- /dev/null
+++ b/WebCore/html/ClassList.cpp
@@ -0,0 +1,146 @@
+/*
+ * 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
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "ClassList.h"
+
+#include "Element.h"
+#include "HTMLNames.h"
+#include "HTMLParserIdioms.h"
+#include "SpaceSplitString.h"
+#include <wtf/text/StringBuilder.h>
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+ClassList::ClassList(Element* element)
+    : m_element(element)
+{
+    if (m_element->document()->inQuirksMode())
+        m_classNamesForQuirksMode.set(m_element->fastGetAttribute(classAttr), false);
+}
+
+void ClassList::ref()
+{
+    m_element->ref();
+}
+
+void ClassList::deref()
+{
+    m_element->deref();
+}
+
+unsigned ClassList::length() const
+{
+    return m_element->hasClass() ? classNames().size() : 0;
+}
+
+const AtomicString ClassList::item(unsigned index) const
+{
+    if (index >= length())
+        return AtomicString();
+    return classNames()[index];
+}
+
+bool ClassList::contains(const AtomicString& token, ExceptionCode& ec) const
+{
+    if (!validateToken(token, ec))
+        return false;
+    return containsInternal(token);
+}
+
+bool ClassList::containsInternal(const AtomicString& token) const
+{
+    return m_element->hasClass() && classNames().contains(token);
+}
+
+void ClassList::add(const AtomicString& token, ExceptionCode& ec)
+{
+    if (!validateToken(token, ec))
+        return;
+    addInternal(token);
+}
+
+void ClassList::addInternal(const AtomicString& token)
+{
+    const AtomicString& oldClassName(m_element->fastGetAttribute(classAttr));
+    if (oldClassName.isEmpty())
+        m_element->setAttribute(classAttr, token);
+    else if (!containsInternal(token)) {
+        const AtomicString& newClassName(addToken(oldClassName, token));
+        m_element->setAttribute(classAttr, newClassName);
+    }
+}
+
+void ClassList::remove(const AtomicString& token, ExceptionCode& ec)
+{
+    if (!validateToken(token, ec))
+        return;
+    removeInternal(token);
+}
+
+void ClassList::removeInternal(const AtomicString& token)
+{
+    // Check using contains first since it uses AtomicString comparisons instead
+    // of character by character testing.
+    if (!containsInternal(token))
+        return;
+    const AtomicString& newClassName(removeToken(m_element->fastGetAttribute(classAttr), token));
+    m_element->setAttribute(classAttr, newClassName);
+}
+
+bool ClassList::toggle(const AtomicString& token, ExceptionCode& ec)
+{
+    if (!validateToken(token, ec))
+        return false;
+
+    if (containsInternal(token)) {
+        removeInternal(token);
+        return false;
+    }
+    addInternal(token);
+    return true;
+}
+
+String ClassList::toString() const
+{
+    return m_element->fastGetAttribute(classAttr);
+}
+
+void ClassList::reset(const String& newClassName)
+{
+    if (!m_classNamesForQuirksMode.isNull())
+        m_classNamesForQuirksMode.set(newClassName, false);
+}
+
+const SpaceSplitString& ClassList::classNames() const
+{
+    ASSERT(m_element->hasClass());
+    if (!m_classNamesForQuirksMode.isNull())
+        return m_classNamesForQuirksMode;
+    return m_element->attributeMap()->classNames();
+}
+
+} // namespace WebCore