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/*
* 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) 2004, 2005, 2006, 2007 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.
*/
#include "config.h"
#include "Attr.h"
#include "Document.h"
#include "Element.h"
#include "ExceptionCode.h"
#include "Text.h"
namespace WebCore {
Attr::Attr(Element* element, Document* docPtr, PassRefPtr<Attribute> a)
: ContainerNode(docPtr),
m_element(element),
m_attribute(a),
m_ignoreChildrenChanged(0)
{
ASSERT(!m_attribute->attr());
m_attribute->m_impl = this;
m_attrWasSpecifiedOrElementHasRareData = true;
}
Attr::~Attr()
{
ASSERT(m_attribute->attr() == this);
m_attribute->m_impl = 0;
}
void Attr::createTextChild()
{
ASSERT(refCount());
if (!m_attribute->value().isEmpty()) {
RefPtr<Text> textNode = document()->createTextNode(m_attribute->value().string());
// This does everything appendChild() would do in this situation (assuming m_ignoreChildrenChanged was set),
// but much more efficiently.
textNode->setParent(this);
setFirstChild(textNode.get());
setLastChild(textNode.get());
}
}
String Attr::nodeName() const
{
return name();
}
Node::NodeType Attr::nodeType() const
{
return ATTRIBUTE_NODE;
}
const AtomicString& Attr::localName() const
{
return m_attribute->localName();
}
const AtomicString& Attr::namespaceURI() const
{
return m_attribute->namespaceURI();
}
const AtomicString& Attr::prefix() const
{
return m_attribute->prefix();
}
void Attr::setPrefix(const AtomicString &_prefix, ExceptionCode& ec)
{
ec = 0;
checkSetPrefix(_prefix, ec);
if (ec)
return;
m_attribute->setPrefix(_prefix);
}
String Attr::nodeValue() const
{
return value();
}
void Attr::setValue(const String& v, ExceptionCode&)
{
m_ignoreChildrenChanged++;
removeChildren();
m_attribute->setValue(v.impl());
createTextChild();
m_ignoreChildrenChanged--;
if (m_element)
m_element->attributeChanged(m_attribute.get());
}
void Attr::setNodeValue(const String& v, ExceptionCode& ec)
{
setValue(v, ec);
}
PassRefPtr<Node> Attr::cloneNode(bool /*deep*/)
{
RefPtr<Attr> clone = new Attr(0, document(), m_attribute->clone());
cloneChildNodes(clone.get());
return clone.release();
}
// DOM Section 1.1.1
bool Attr::childTypeAllowed(NodeType type)
{
switch (type) {
case TEXT_NODE:
case ENTITY_REFERENCE_NODE:
return true;
default:
return false;
}
}
void Attr::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
if (m_ignoreChildrenChanged > 0)
return;
Node::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
// FIXME: We should include entity references in the value
String val = "";
for (Node *n = firstChild(); n; n = n->nextSibling()) {
if (n->isTextNode())
val += static_cast<Text *>(n)->data();
}
m_attribute->setValue(val.impl());
if (m_element)
m_element->attributeChanged(m_attribute.get());
}
}
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