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, 2007, 2008, 2009 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 Attr_h 26 #define Attr_h 27 28 #include "core/dom/ContainerNode.h" 29 #include "core/dom/QualifiedName.h" 30 31 namespace WebCore { 32 33 class CSSStyleDeclaration; 34 class ExceptionState; 35 class MutableStylePropertySet; 36 37 // Attr can have Text children 38 // therefore it has to be a fullblown Node. The plan 39 // is to dynamically allocate a textchild and store the 40 // resulting nodevalue in the attribute upon 41 // destruction. however, this is not yet implemented. 42 43 class Attr FINAL : public ContainerNode { 44 public: 45 static PassRefPtr<Attr> create(Element*, const QualifiedName&); 46 static PassRefPtr<Attr> create(Document*, const QualifiedName&, const AtomicString& value); 47 virtual ~Attr(); 48 49 String name() const { return qualifiedName().toString(); } 50 bool specified() const { return m_specified; } 51 Element* ownerElement() const { return m_element; } 52 53 const AtomicString& value() const; 54 void setValue(const AtomicString&, ExceptionState&); 55 void setValue(const AtomicString&); 56 57 const QualifiedName& qualifiedName() const { return m_name; } 58 59 bool isId() const; 60 61 void setSpecified(bool specified) { m_specified = specified; } 62 63 void attachToElement(Element*); 64 void detachFromElementWithValue(const AtomicString&); 65 66 private: 67 Attr(Element*, const QualifiedName&); 68 Attr(Document*, const QualifiedName&, const AtomicString& value); 69 70 void createTextChild(); 71 72 virtual String nodeName() const OVERRIDE { return name(); } 73 virtual NodeType nodeType() const OVERRIDE { return ATTRIBUTE_NODE; } 74 75 virtual const AtomicString& localName() const OVERRIDE { return m_name.localName(); } 76 virtual const AtomicString& namespaceURI() const OVERRIDE { return m_name.namespaceURI(); } 77 virtual const AtomicString& prefix() const OVERRIDE { return m_name.prefix(); } 78 79 virtual void setPrefix(const AtomicString&, ExceptionState&); 80 81 virtual String nodeValue() const OVERRIDE { return value(); } 82 virtual void setNodeValue(const String&); 83 virtual PassRefPtr<Node> cloneNode(bool deep = true); 84 85 virtual bool isAttributeNode() const { return true; } 86 virtual bool childTypeAllowed(NodeType) const; 87 88 virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0); 89 90 Attribute& elementAttribute(); 91 92 // Attr wraps either an element/name, or a name/value pair (when it's a standalone Node.) 93 // Note that m_name is always set, but m_element/m_standaloneValue may be null. 94 Element* m_element; 95 QualifiedName m_name; 96 AtomicString m_standaloneValue; 97 98 unsigned m_ignoreChildrenChanged : 31; 99 bool m_specified : 1; 100 }; 101 102 inline Attr* toAttr(Node* node) 103 { 104 ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isAttributeNode()); 105 return static_cast<Attr*>(node); 106 } 107 108 inline const Attr* toAttr(const Node* node) 109 { 110 ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isAttributeNode()); 111 return static_cast<const Attr*>(node); 112 } 113 114 } // namespace WebCore 115 116 #endif // Attr_h 117
