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410 lines
13 KiB
410 lines
13 KiB
/**
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* This file is part of the DOM implementation for KDE.
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*
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* (C) 1999 Lars Knoll (knoll@kde.org)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include "dom/dom_exception.h"
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#include "xml/dom_docimpl.h"
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#include "xml/dom_elementimpl.h"
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#include "html/html_formimpl.h"
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using namespace DOM;
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Attr::Attr() : Node()
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{
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}
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Attr::Attr(const Attr &other) : Node(other)
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{
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}
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Attr::Attr( AttrImpl *_impl )
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{
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impl= _impl;
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if (impl) impl->ref();
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}
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Attr &Attr::operator = (const Node &other)
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{
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NodeImpl* ohandle = other.handle();
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if ( impl != ohandle ) {
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if (!ohandle || !ohandle->isAttributeNode()) {
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if (impl) impl->deref();
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impl = 0;
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} else {
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Node::operator =(other);
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}
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}
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return *this;
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}
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Attr &Attr::operator = (const Attr &other)
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{
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Node::operator =(other);
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return *this;
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}
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Attr::~Attr()
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{
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}
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DOMString Attr::name() const
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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return ((AttrImpl *)impl)->name();
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}
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bool Attr::specified() const
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{
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if (impl) return ((AttrImpl *)impl)->specified();
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return 0;
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}
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Element Attr::ownerElement() const
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{
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if (!impl) return 0;
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return static_cast<AttrImpl*>(impl)->ownerElement();
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}
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DOMString Attr::value() const
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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return impl->nodeValue();
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}
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void Attr::setValue( const DOMString &newValue )
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{
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if (!impl)
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return;
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int exceptioncode = 0;
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((AttrImpl *)impl)->setValue(newValue,exceptioncode);
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if (exceptioncode)
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throw DOMException(exceptioncode);
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}
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// ---------------------------------------------------------------------------
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Element::Element() : Node()
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{
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}
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Element::Element(const Element &other) : Node(other)
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{
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}
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Element::Element(ElementImpl *impl) : Node(impl)
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{
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}
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Element &Element::operator = (const Node &other)
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{
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NodeImpl* ohandle = other.handle();
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if ( impl != ohandle ) {
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if (!ohandle || !ohandle->isElementNode()) {
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if (impl) impl->deref();
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impl = 0;
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} else {
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Node::operator =(other);
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}
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}
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return *this;
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}
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Element &Element::operator = (const Element &other)
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{
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Node::operator =(other);
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return *this;
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}
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Element::~Element()
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{
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}
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DOMString Element::tagName() const
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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return static_cast<ElementImpl*>(impl)->tagName();
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}
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DOMString Element::getAttribute( const DOMString &name )
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{
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// ### getAttribute() and getAttributeNS() are supposed to return the empty string if the attribute
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// does not exist. However, there are a number of places around tdehtml that expect a null string
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// for nonexistent attributes. These need to be changed to use hasAttribute() instead.
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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if (!name.implementation()) throw DOMException(DOMException::NOT_FOUND_ERR);
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId,name.implementation(),true,true);
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if (!id) return DOMString();
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ElementImpl* e = static_cast<ElementImpl*>(impl);
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return e->getAttribute(id, false, name);
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}
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void Element::setAttribute( const DOMString &name, const DOMString &value )
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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int exceptioncode = 0;
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId, name.implementation(), false /* allocate */,
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true, &exceptioncode);
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static_cast<ElementImpl*>(impl)->setAttribute(id, value, name, exceptioncode);
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if ( exceptioncode )
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throw DOMException( exceptioncode );
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}
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void Element::removeAttribute( const DOMString &name )
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId, name.implementation(), true, true);
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if (!id) return;
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int exceptioncode = 0;
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NamedNodeMapImpl *attributes = static_cast<ElementImpl*>(impl)->attributes(false);
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attributes->removeNamedItem(id, false, name.implementation(), exceptioncode);
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// it's allowed to remove attributes that don't exist.
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if ( exceptioncode && exceptioncode != DOMException::NOT_FOUND_ERR )
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throw DOMException( exceptioncode );
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}
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Attr Element::getAttributeNode( const DOMString &name )
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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if (!name.implementation()) throw DOMException(DOMException::NOT_FOUND_ERR);
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId, name.implementation(), true, true);
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if (!id) return 0;
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ElementImpl* e = static_cast<ElementImpl*>(impl);
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if (!e->attributes()) return 0;
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return static_cast<AttrImpl*>(e->attributes()->getNamedItem(id, false, name.implementation()));
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}
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Attr Element::setAttributeNode( const Attr &newAttr )
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{
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if (!impl || newAttr.isNull())
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throw DOMException(DOMException::NOT_FOUND_ERR);
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// WRONG_DOCUMENT_ERR and INUSE_ATTRIBUTE_ERR are already tested & thrown by setNamedItem
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int exceptioncode = 0;
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Attr r = static_cast<ElementImpl*>(impl)->attributes(false)->setNamedItem(newAttr.handle(), false,
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newAttr.handle()->nodeName().implementation(), exceptioncode);
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if ( exceptioncode )
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throw DOMException( exceptioncode );
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static_cast<AttrImpl *>(newAttr.handle())->setOwnerElement( static_cast<ElementImpl*>(impl) );
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return r;
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}
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Attr Element::removeAttributeNode( const Attr &oldAttr )
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{
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if (!impl || oldAttr.isNull() || oldAttr.ownerElement().handle() != impl)
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throw DOMException(DOMException::NOT_FOUND_ERR);
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if (impl->isReadOnly())
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throw DOMException(DOMException::NO_MODIFICATION_ALLOWED_ERR);
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if (!static_cast<ElementImpl*>(impl)->attributes(true))
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throw DOMException(DOMException::NOT_FOUND_ERR);
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NamedAttrMapImpl *attributes = static_cast<ElementImpl*>(impl)->attributes(false);
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return attributes->removeAttr(static_cast<AttrImpl*>(static_cast<AttrImpl*>(oldAttr.handle())));
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}
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NodeList Element::getElementsByTagName( const DOMString &tagName )
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{
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if (!impl) return 0;
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NodeImpl::Id id;
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if ( tagName == "*" )
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id = 0;
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else
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id = impl->getDocument()->getId(NodeImpl::ElementId, tagName.implementation(), false, true);
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return new TagNodeListImpl( impl, id );
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}
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NodeList Element::getElementsByTagNameNS( const DOMString &namespaceURI,
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const DOMString &localName )
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{
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if (!impl) return 0;
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return new TagNodeListImpl( impl, namespaceURI, localName );
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}
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DOMString Element::getAttributeNS( const DOMString &namespaceURI,
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const DOMString &localName)
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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if (!localName.implementation()) throw DOMException(DOMException::NOT_FOUND_ERR);
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId, namespaceURI.implementation(), 0/*prefix*/, localName.implementation(), true, true);
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ElementImpl* e = static_cast<ElementImpl*>(impl);
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return e->getAttribute(id, true);
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}
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void Element::setAttributeNS( const DOMString &namespaceURI,
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const DOMString &qualifiedName,
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const DOMString &value)
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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int exceptioncode = 0;
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static_cast<ElementImpl*>(impl)->setAttributeNS(namespaceURI, qualifiedName, value, exceptioncode);
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if ( exceptioncode )
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throw DOMException( exceptioncode );
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}
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void Element::removeAttributeNS( const DOMString &namespaceURI,
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const DOMString &localName )
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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int exceptioncode = 0;
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NamedNodeMapImpl *attributes = static_cast<ElementImpl*>(impl)->attributes(false);
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId, namespaceURI.implementation(), 0/*prefix*/, localName.implementation(), false, true);
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attributes->removeNamedItem(id, true, 0, exceptioncode);
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if ( exceptioncode )
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throw DOMException( exceptioncode );
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}
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Attr Element::getAttributeNodeNS( const DOMString &namespaceURI,
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const DOMString &localName )
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{
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if (!impl) throw DOMException(DOMException::NOT_FOUND_ERR);
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if (!localName.implementation()) throw DOMException(DOMException::NOT_FOUND_ERR);
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId, namespaceURI.implementation(),
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0/*prefix*/, localName.implementation(), true, true);
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ElementImpl* e = static_cast<ElementImpl*>(impl);
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if (!e->attributes()) return 0;
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return static_cast<AttrImpl*>(e->attributes()->getNamedItem(id, true));
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}
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Attr Element::setAttributeNodeNS( const Attr &newAttr )
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{
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if (!impl || newAttr.isNull())
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throw DOMException(DOMException::NOT_FOUND_ERR);
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// WRONG_DOCUMENT_ERR and INUSE_ATTRIBUTE_ERR are already tested & thrown by setNamedItem
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int exceptioncode = 0;
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Attr r = static_cast<ElementImpl*>(impl)->attributes(false)->setNamedItem(newAttr.handle(), true, 0, exceptioncode);
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if ( exceptioncode )
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throw DOMException( exceptioncode );
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static_cast<AttrImpl *>(newAttr.handle())->setOwnerElement( static_cast<ElementImpl*>(impl) );
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return r;
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}
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bool Element::hasAttribute( const DOMString& name )
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{
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if (!impl || !static_cast<ElementImpl*>(impl)->attributes()) return false; // ### throw ?
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId, name.implementation(), true, true);
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if (!id) return false;
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if (!static_cast<ElementImpl*>(impl)->attributes(true /*readonly*/)) return false;
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return static_cast<ElementImpl*>(impl)->attributes(true)->getValue(id, false, name.implementation()) != 0;
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}
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bool Element::hasAttributeNS( const DOMString &namespaceURI,
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const DOMString &localName )
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{
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if (!impl || !static_cast<ElementImpl*>(impl)->attributes()) return false; // ### throw ?
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if (!static_cast<ElementImpl*>(impl)->attributes(true /*readonly*/)) return false;
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NodeImpl::Id id = impl->getDocument()->getId(NodeImpl::AttributeId,namespaceURI.implementation(),
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0/*prefix*/, localName.implementation(), true, true);
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return static_cast<ElementImpl*>(impl)->attributes(true)->getValue(id, true) != 0;
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}
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bool Element::isHTMLElement() const
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{
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if(!impl) return false;
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return ((ElementImpl *)impl)->isHTMLElement();
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}
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Element Element::form() const
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{
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if (!impl || !impl->isGenericFormElement()) return 0;
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return static_cast<HTMLGenericFormElementImpl*>(impl)->form();
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ElementImpl* f = static_cast<HTMLGenericFormElementImpl*>( impl )->form();
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if( f && f->implicitNode() )
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return 0;
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return f;
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}
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CSSStyleDeclaration Element::style()
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{
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if (impl) return ((ElementImpl *)impl)->styleRules();
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return 0;
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}
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bool Element::contentEditable() const {
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if(!impl) return false;
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return static_cast<ElementImpl *>(impl)->contentEditable();
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}
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void Element::setContentEditable(bool enabled) {
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if(!impl)
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throw DOMException(DOMException::INVALID_STATE_ERR);
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static_cast<ElementImpl *>(impl)->setContentEditable(enabled);
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}
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bool Element::tdehtmlValidAttrName(const DOMString &name)
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{
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// Check if name is valid
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// http://www.w3.org/TR/2000/REC-xml-20001006#NT-Name
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DOMStringImpl* _name = name.implementation();
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TQChar ch = _name->s[0];
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if ( !ch.isLetter() && ch != '_' && ch != ':' )
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return false; // first char isn't valid
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for ( uint i = 0; i < _name->l; ++i )
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{
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ch = _name->s[i];
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if ( !ch.isLetter() && !ch.isDigit() && ch != '.'
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&& ch != '-' && ch != '_' && ch != ':'
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&& ch.category() != TQChar::Mark_SpacingCombining
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/* no idea what "extender is" */ )
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return false;
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}
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return true;
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}
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bool Element::tdehtmlValidPrefix(const DOMString &name)
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{
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// Null prefix is ok. If not null, reuse code from tdehtmlValidAttrName
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return !name.implementation() || tdehtmlValidAttrName(name);
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}
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bool Element::tdehtmlValidQualifiedName(const DOMString &name)
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{
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return tdehtmlValidAttrName(name);
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}
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bool Element::tdehtmlMalformedQualifiedName(const DOMString &name)
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{
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// #### Not clearly defined in the DOM spec...
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// But we know for sure that a null qualified name is malformed
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return name.isNull();
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}
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bool Element::tdehtmlMalformedPrefix(const DOMString &/*name*/)
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{
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// ####
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return false;
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}
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