/* * 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, 2012 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 "core/dom/QualifiedName.h" namespace WebCore { // 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: Attribute(const QualifiedName& name, const AtomicString& value) : m_name(name) , m_value(value) { } // NOTE: The references returned by these functions are only valid for as long // as the Attribute stays in place. For example, calling a function that mutates // an Element's internal attribute storage may invalidate them. 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; } bool isEmpty() const { return m_value.isEmpty(); } bool matches(const QualifiedName&) const; 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 parseAttribute has been called as DOM // elements may have placed the Attribute in a hash by name. void parserSetName(const QualifiedName& name) { m_name = name; } #if COMPILER(MSVC) // NOTE: This constructor is not actually implemented, it's just defined so MSVC // will let us use a zero-length array of Attributes. Attribute(); #endif private: QualifiedName m_name; AtomicString m_value; }; inline bool Attribute::matches(const QualifiedName& qualifiedName) const { if (qualifiedName.localName() != localName()) return false; return qualifiedName.prefix() == starAtom || qualifiedName.namespaceURI() == namespaceURI(); } } // namespace WebCore #endif // Attribute_h