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Diffstat (limited to 'WebCore/dom/Attr.cpp')
-rw-r--r-- | WebCore/dom/Attr.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/WebCore/dom/Attr.cpp b/WebCore/dom/Attr.cpp new file mode 100644 index 0000000..52a2581 --- /dev/null +++ b/WebCore/dom/Attr.cpp @@ -0,0 +1,195 @@ +/* + * 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& ec) +{ + ec = 0; + + // do not interprete entities in the string, its literal! + + // NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly + if (isReadOnlyNode()) { + ec = NO_MODIFICATION_ALLOWED_ERR; + return; + } + + int e = 0; + m_ignoreChildrenChanged++; + removeChildren(); + appendChild(document()->createTextNode(v), e); + m_ignoreChildrenChanged--; + + m_attribute->setValue(v.impl()); + if (m_element) + m_element->attributeChanged(m_attribute.get()); +} + +void Attr::setNodeValue(const String& v, ExceptionCode& ec) +{ + // NO_MODIFICATION_ALLOWED_ERR: taken care of by setValue() + 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()); +} + +String Attr::toString() const +{ + String result; + + result += nodeName(); + + // FIXME: substitute entities for any instances of " or ' -- + // maybe easier to just use text value and ignore existing + // entity refs? + + if (firstChild() != NULL) { + result += "=\""; + + for (Node *child = firstChild(); child != NULL; child = child->nextSibling()) { + result += child->toString(); + } + + result += "\""; + } + + return result; +} + +} |