1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2001 Peter Kelly (pmk (at) post.com) 5 * (C) 2001 Dirk Mueller (mueller (at) kde.org) 6 * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved. 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 * 23 */ 24 25 #ifndef Attribute_h 26 #define Attribute_h 27 28 #include "QualifiedName.h" 29 30 namespace WebCore { 31 32 class Attr; 33 class CSSStyleDeclaration; 34 class Element; 35 class NamedNodeMap; 36 37 // This has no counterpart in DOM. 38 // It is an internal representation of the node value of an Attr. 39 // The actual Attr with its value as a Text child is allocated only if needed. 40 class Attribute : public RefCounted<Attribute> { 41 friend class Attr; 42 friend class NamedNodeMap; 43 public: 44 static PassRefPtr<Attribute> create(const QualifiedName& name, const AtomicString& value) 45 { 46 return adoptRef(new Attribute(name, value)); 47 } 48 virtual ~Attribute() { } 49 50 const AtomicString& value() const { return m_value; } 51 const AtomicString& prefix() const { return m_name.prefix(); } 52 const AtomicString& localName() const { return m_name.localName(); } 53 const AtomicString& namespaceURI() const { return m_name.namespaceURI(); } 54 55 const QualifiedName& name() const { return m_name; } 56 57 Attr* attr() const { return m_impl; } 58 PassRefPtr<Attr> createAttrIfNeeded(Element*); 59 60 bool isNull() const { return m_value.isNull(); } 61 bool isEmpty() const { return m_value.isEmpty(); } 62 63 virtual PassRefPtr<Attribute> clone() const; 64 65 // An extension to get the style information for presentational attributes. 66 virtual CSSStyleDeclaration* style() const { return 0; } 67 68 void setValue(const AtomicString& value) { m_value = value; } 69 void setPrefix(const AtomicString& prefix) { m_name.setPrefix(prefix); } 70 71 virtual bool isMappedAttribute() { return false; } 72 73 protected: 74 Attribute(const QualifiedName& name, const AtomicString& value) 75 : m_name(name), m_value(value), m_impl(0) 76 { 77 } 78 Attribute(const AtomicString& name, const AtomicString& value) 79 : m_name(nullAtom, name, nullAtom), m_value(value), m_impl(0) 80 { 81 } 82 83 private: 84 QualifiedName m_name; 85 AtomicString m_value; 86 Attr* m_impl; 87 }; 88 89 } //namespace 90 91 #endif 92
