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Diffstat (limited to 'Source/WebCore/dom/Attr.cpp')
| -rw-r--r-- | Source/WebCore/dom/Attr.cpp | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/Source/WebCore/dom/Attr.cpp b/Source/WebCore/dom/Attr.cpp new file mode 100644 index 0000000..f497394 --- /dev/null +++ b/Source/WebCore/dom/Attr.cpp @@ -0,0 +1,192 @@ +/* + * 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, 2009, 2010 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 "Element.h" +#include "ExceptionCode.h" +#include "HTMLNames.h" +#include "Text.h" +#include "XMLNSNames.h" + +namespace WebCore { + +using namespace HTMLNames; + +inline Attr::Attr(Element* element, Document* document, PassRefPtr<Attribute> attribute) + : ContainerNode(document) + , m_element(element) + , m_attribute(attribute) + , m_ignoreChildrenChanged(0) + , m_specified(true) +{ + ASSERT(!m_attribute->attr()); + m_attribute->bindAttr(this); +} + +PassRefPtr<Attr> Attr::create(Element* element, Document* document, PassRefPtr<Attribute> attribute) +{ + RefPtr<Attr> attr = adoptRef(new Attr(element, document, attribute)); + attr->createTextChild(); + return attr.release(); +} + +Attr::~Attr() +{ + ASSERT(m_attribute->attr() == this); + m_attribute->unbindAttr(this); +} + +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; + + if ((prefix == xmlnsAtom && namespaceURI() != XMLNSNames::xmlnsNamespaceURI) + || static_cast<Attr*>(this)->qualifiedName() == xmlnsAtom) { + ec = NAMESPACE_ERR; + return; + } + + m_attribute->setPrefix(prefix.isEmpty() ? AtomicString() : prefix); +} + +String Attr::nodeValue() const +{ + return value(); +} + +void Attr::setValue(const AtomicString& value) +{ + m_ignoreChildrenChanged++; + removeChildren(); + m_attribute->setValue(value); + createTextChild(); + m_ignoreChildrenChanged--; +} + +void Attr::setValue(const AtomicString& value, ExceptionCode&) +{ + if (m_element && m_element->isIdAttributeName(m_attribute->name())) + m_element->updateId(m_element->getIdAttribute(), value); + + setValue(value); + + 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 = adoptRef(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(); + } + + if (m_element && m_element->isIdAttributeName(m_attribute->name())) + m_element->updateId(m_attribute->value(), val); + + m_attribute->setValue(val.impl()); + if (m_element) + m_element->attributeChanged(m_attribute.get()); +} + +bool Attr::isId() const +{ + return qualifiedName().matches(document()->idAttributeName()); +} + +} |