diff -r 000000000000 -r 4f2f89ce4247 WebCore/dom/Attribute.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/dom/Attribute.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2001 Peter Kelly (pmk@post.com)
+ *           (C) 2001 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef Attribute_h
+#define Attribute_h
+
+#include "CSSMappedAttributeDeclaration.h"
+#include "QualifiedName.h"
+
+namespace WebCore {
+
+class Attr;
+class CSSStyleDeclaration;
+class Element;
+class NamedNodeMap;
+
+// This has no counterpart in DOM.
+// It is an internal representation of the node value of an Attr.
+// The actual Attr with its value as a Text child is allocated only if needed.
+class Attribute : public RefCounted<Attribute> {
+    friend class Attr;
+    friend class NamedNodeMap;
+public:
+    static PassRefPtr<Attribute> create(const QualifiedName& name, const AtomicString& value)
+    {
+        return adoptRef(new Attribute(name, value, false, 0));
+    }
+    static PassRefPtr<Attribute> createMapped(const QualifiedName& name, const AtomicString& value)
+    {
+        return adoptRef(new Attribute(name, value, true, 0));
+    }
+    static PassRefPtr<Attribute> createMapped(const AtomicString& name, const AtomicString& value)
+    {
+        return adoptRef(new Attribute(name, value, true, 0));
+    }
+
+    const AtomicString& value() const { return m_value; }
+    const AtomicString& prefix() const { return m_name.prefix(); }
+    const AtomicString& localName() const { return m_name.localName(); }
+    const AtomicString& namespaceURI() const { return m_name.namespaceURI(); }
+    
+    const QualifiedName& name() const { return m_name; }
+    
+    Attr* attr() const;
+    PassRefPtr<Attr> createAttrIfNeeded(Element*);
+
+    bool isNull() const { return m_value.isNull(); }
+    bool isEmpty() const { return m_value.isEmpty(); }
+    
+    PassRefPtr<Attribute> clone() const;
+
+    // An extension to get the style information for presentational attributes.
+    CSSStyleDeclaration* style() const { return m_styleDecl.get(); }
+    CSSMappedAttributeDeclaration* decl() const { return m_styleDecl.get(); }
+    void setDecl(PassRefPtr<CSSMappedAttributeDeclaration> decl) { m_styleDecl = decl; }
+
+    void setValue(const AtomicString& value) { m_value = value; }
+    void setPrefix(const AtomicString& prefix) { m_name.setPrefix(prefix); }
+
+    // Note: This API is only for HTMLTreeBuilder.  It is not safe to change the
+    // name of an attribute once parseMappedAttribute has been called as DOM
+    // elements may have placed the Attribute in a hash by name.
+    void parserSetName(const QualifiedName& name) { m_name = name; }
+
+    bool isMappedAttribute() { return m_isMappedAttribute; }
+
+private:
+    Attribute(const QualifiedName& name, const AtomicString& value, bool isMappedAttribute, CSSMappedAttributeDeclaration* styleDecl)
+        : m_isMappedAttribute(isMappedAttribute)
+        , m_hasAttr(false)
+        , m_name(name)
+        , m_value(value)
+        , m_styleDecl(styleDecl)
+    {
+    }
+
+    Attribute(const AtomicString& name, const AtomicString& value, bool isMappedAttribute, CSSMappedAttributeDeclaration* styleDecl)
+        : m_isMappedAttribute(isMappedAttribute)
+        , m_hasAttr(false)
+        , m_name(nullAtom, name, nullAtom)
+        , m_value(value)
+        , m_styleDecl(styleDecl)
+    {
+    }
+
+    void bindAttr(Attr*);
+    void unbindAttr(Attr*);
+
+    // These booleans will go into the spare 32-bits of padding from RefCounted in 64-bit.
+    bool m_isMappedAttribute;
+    bool m_hasAttr;
+    
+    QualifiedName m_name;
+    AtomicString m_value;
+    RefPtr<CSSMappedAttributeDeclaration> m_styleDecl;
+};
+
+} // namespace WebCore
+
+#endif // Attribute_h