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-/*
- * This file is part of the DOM implementation for KDE.
- *
- * 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)
- * (C) 2003 Apple Computer, Inc.
- *
- * 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 _DOM_ELEMENTImpl_h_
-#define _DOM_ELEMENTImpl_h_
-
-#include "dom_nodeimpl.h"
-#include "dom/dom_exception.h"
-#include "dom/dom_element.h"
-#include "xml/dom_stringimpl.h"
-#include "misc/shared.h"
-
-namespace khtml {
- class CSSStyleSelector;
-}
-
-namespace DOM {
-
-class ElementImpl;
-class DocumentImpl;
-class NamedAttrMapImpl;
-
-// Attr can have Text and EntityReference children
-// therefore it has to be a fullblown Node. The plan
-// is to dynamically allocate a textchild and store the
-// resulting nodevalue in the AttributeImpl upon
-// destruction. however, this is not yet implemented.
-class AttrImpl : public NodeBaseImpl
-{
- friend class ElementImpl;
- friend class NamedAttrMapImpl;
-
-public:
- AttrImpl(ElementImpl* element, DocumentImpl* docPtr, NodeImpl::Id attrId,
- DOMStringImpl *value, DOMStringImpl *prefix = 0);
- ~AttrImpl();
-
-private:
- AttrImpl(const AttrImpl &other);
- AttrImpl &operator = (const AttrImpl &other);
-public:
-
- // DOM methods & attributes for Attr
- bool specified() const { return m_specified; }
- ElementImpl* ownerElement() const { return m_element; }
- void setOwnerElement( ElementImpl* impl ) { m_element = impl; }
- DOMString name() const;
-
- //DOMString value() const;
- void setValue( const DOMString &v, int &exceptioncode );
-
- // DOM methods overridden from parent classes
- virtual DOMString nodeName() const;
- virtual unsigned short nodeType() const;
- virtual DOMString prefix() const;
- virtual void setPrefix(const DOMString &_prefix, int &exceptioncode );
- virtual DOMString namespaceURI() const;
- virtual DOMString localName() const;
-
- virtual DOMString nodeValue() const;
- virtual void setNodeValue( const DOMString &, int &exceptioncode );
- virtual NodeImpl *cloneNode ( bool deep );
-
- virtual DOMStringImpl* textContent() const;
- virtual void setTextContent( const DOMString &text, int& exceptioncode );
-
-
- // Other methods (not part of DOM)
- virtual bool isAttributeNode() const { return true; }
- virtual bool childAllowed( NodeImpl *newChild );
- virtual bool childTypeAllowed( unsigned short type );
- virtual NodeImpl::Id id() const { return m_attrId; }
-
- virtual DOMString toString() const;
-
- void setElement(ElementImpl *element);
- DOMStringImpl *val() { return m_value; }
-
-protected:
- ElementImpl *m_element;
- NodeImpl::Id m_attrId;
- DOMStringImpl *m_value;
- DOMStringImpl *m_prefix;
- DOMStringImpl *m_localName;
-};
-
-// Mini version of AttrImpl internal to NamedAttrMapImpl.
-// Stores either the id and value of an attribute
-// (in the case of m_attrId != 0), or a pointer to an AttrImpl (if m_attrId == 0)
-// The latter case only happens when the Attr node is requested by some DOM
-// code or is an XML attribute.
-// In most cases the id and value is all we need to store, which is more
-// memory efficient.
-struct AttributeImpl
-{
- NodeImpl::Id id() const { return m_attrId ? m_attrId : m_data.attr->id(); }
- DOMStringImpl *val() const { return m_attrId ? m_data.value : m_data.attr->val(); }
- DOMString value() const { return val(); }
- AttrImpl *attr() const { return m_attrId ? 0 : m_data.attr; }
- DOMString namespaceURI() { return m_attrId ? DOMString() : m_data.attr->namespaceURI(); }
- DOMString prefix() { return m_attrId ? DOMString() : m_data.attr->prefix(); }
- DOMString localName() { return m_attrId ? DOMString() : m_data.attr->localName(); }
- DOMString name() { return m_attrId ? DOMString() : m_data.attr->name(); }
-
- void setValue(DOMStringImpl *value, ElementImpl *element);
- AttrImpl *createAttr(ElementImpl *element, DocumentImpl *docPtr);
- void free();
-
- NodeImpl::Id m_attrId;
- union {
- DOMStringImpl *value;
- AttrImpl *attr;
- } m_data;
-};
-
-class ElementImpl : public NodeBaseImpl
-{
- friend class DocumentImpl;
- friend class NamedAttrMapImpl;
- friend class AttrImpl;
- friend class NodeImpl;
- friend class khtml::CSSStyleSelector;
-public:
- ElementImpl(DocumentImpl *doc);
- ~ElementImpl();
-
- DOMString getAttribute( NodeImpl::Id id, bool nsAware = 0, const DOMString& qName = DOMString() ) const;
- DOMStringImpl* getAttributeImpl( NodeImpl::Id id, bool nsAware = 0, DOMStringImpl* qName = 0 ) const;
- void setAttribute( NodeImpl::Id id, const DOMString &value, const DOMString &qName,
- int &exceptioncode );
- void setAttributeNS( const DOMString &namespaceURI, const DOMString &qualifiedName,
- const DOMString& value, int &exceptioncode );
- virtual DOMString prefix() const;
- void setPrefix(const DOMString &_prefix, int &exceptioncode );
- virtual DOMString namespaceURI() const;
-
- // DOM methods overridden from parent classes
- virtual DOMString tagName() const = 0;
- virtual unsigned short nodeType() const;
- virtual NodeImpl *cloneNode ( bool deep );
- virtual DOMString nodeName() const;
- virtual NodeImpl::Id id() const = 0;
- virtual bool isElementNode() const { return true; }
- virtual void insertedIntoDocument();
- virtual void removedFromDocument();
-
- // convenience methods which ignore exceptions
- void setAttribute (NodeImpl::Id id, const DOMString &value);
-
- NamedAttrMapImpl* attributes(bool readonly = false) const
- {
- if (!readonly && !namedAttrMap) createAttributeMap();
- return namedAttrMap;
- }
-
- //This is always called, whenever an attribute changed
- virtual void parseAttribute(AttributeImpl *) {}
- void parseAttribute(NodeImpl::Id attrId, DOMStringImpl *value) {
- AttributeImpl aimpl;
- aimpl.m_attrId = attrId;
- aimpl.m_data.value = value;
- parseAttribute(&aimpl);
- }
-
- // not part of the DOM
- void setAttributeMap ( NamedAttrMapImpl* list );
-
- // State of the element.
- virtual TQString state() { return TQString::null; }
-
- virtual void attach();
- virtual void close();
- virtual void detach();
- virtual void structureChanged();
- virtual void backwardsStructureChanged();
- virtual void attributeChanged(NodeImpl::Id attrId);
-
- virtual khtml::RenderStyle *styleForRenderer(khtml::RenderObject *parent);
- virtual khtml::RenderObject *createRenderer(khtml::RenderArena *, khtml::RenderStyle *);
- virtual void recalcStyle( StyleChange = NoChange );
-
- virtual void mouseEventHandler( MouseEvent* /*ev*/, bool /*inside*/ ) {}
- virtual bool isFocusable() const;
- virtual bool childAllowed( NodeImpl *newChild );
- virtual bool childTypeAllowed( unsigned short type );
-
- DOM::CSSStyleDeclarationImpl *styleRules() {
- if (!m_styleDecls) createDecl();
- return m_styleDecls;
- }
-
- void dispatchAttrRemovalEvent(NodeImpl::Id id, DOMStringImpl *value);
- void dispatchAttrAdditionEvent(NodeImpl::Id id, DOMStringImpl *value);
-
- virtual DOMString toString() const;
- virtual DOMString selectionToString(NodeImpl *selectionStart, NodeImpl *selectionEnd, int startOffset, int endOffset, bool &found) const;
-
- virtual bool contentEditable() const;
- void setContentEditable(bool enabled);
-
- void scrollIntoView(bool alignToTop);
-
- /** Returns the opening tag and properties.
- * Examples: '<b', '<img alt="hello" src="image.png"
- *
- * For security reasons, passwords are stripped out of all src= and
- * href= tags if expandurls is turned on.
- *
- * @param expandurls If this is set then in the above example, it would give
- * src="http://website.com/image.png". Note that the password
- * is stripped out of the url.
- *
- * DOM::RangeImpl uses this which is why it is public.
- */
- DOMString openTagStartToString(bool expandurls = false) const;
-
- void updateId(DOMStringImpl* oldId, DOMStringImpl* newId);
- //Called when mapping from id to this node in document should be removed
- virtual void removeId(const TQString& id);
- //Called when mapping from id to this node in document should be added
- virtual void addId (const TQString& id);
-
-protected:
- void createAttributeMap() const;
- void createDecl();
- void finishCloneNode( ElementImpl *clone, bool deep );
-
-private:
- // map of default attributes. derived element classes are responsible
- // for setting this according to the corresponding element description
- // in the DTD
- virtual NamedAttrMapImpl* defaultMap() const;
-
-protected: // member variables
- mutable NamedAttrMapImpl *namedAttrMap;
-
- DOM::CSSStyleDeclarationImpl *m_styleDecls;
- DOMStringImpl *m_prefix;
-};
-
-
-class XMLElementImpl : public ElementImpl
-{
-
-public:
- XMLElementImpl(DocumentImpl *doc, NodeImpl::Id id);
- XMLElementImpl(DocumentImpl *doc, NodeImpl::Id id, DOMStringImpl *_qualifiedName);
- ~XMLElementImpl();
-
- // DOM methods overridden from parent classes
- virtual DOMString tagName() const;
- virtual DOMString localName() const;
- virtual NodeImpl *cloneNode ( bool deep );
-
- // Other methods (not part of DOM)
- virtual bool isXMLElementNode() const { return true; }
- virtual Id id() const { return m_id; }
-
-protected:
- Id m_id;
-};
-
-// the map of attributes of an element
-class NamedAttrMapImpl : public NamedNodeMapImpl
-{
- friend class ElementImpl;
-public:
- NamedAttrMapImpl(ElementImpl *element);
- virtual ~NamedAttrMapImpl();
-
- // DOM methods & attributes for NamedNodeMap
- virtual NodeImpl *getNamedItem ( NodeImpl::Id id, bool nsAware = false, DOMStringImpl* qName = 0 ) const;
- virtual Node removeNamedItem ( NodeImpl::Id id, bool nsAware, DOMStringImpl* qName, int &exceptioncode );
- virtual Node setNamedItem ( NodeImpl* arg, bool nsAware, DOMStringImpl* qName, int &exceptioncode );
-
- virtual NodeImpl *item ( unsigned long index ) const;
- virtual unsigned long length( ) const;
-
- // Other methods (not part of DOM)
- virtual bool isReadOnly() { return false; }
-
- AttributeImpl *attrAt(unsigned long index) const { return &m_attrs[index]; }
- // ### replace idAt and getValueAt with attrAt
- NodeImpl::Id idAt(unsigned long index) const;
- DOMStringImpl *valueAt(unsigned long index) const;
- DOMStringImpl *getValue(NodeImpl::Id id, bool nsAware = false, DOMStringImpl* qName = 0) const;
- void setValue(NodeImpl::Id id, DOMStringImpl *value, DOMStringImpl* qName = 0,
- DOMStringImpl *prefix = 0, bool nsAware = false, bool hasNS = false);
- Attr removeAttr(AttrImpl *attr);
- NodeImpl::Id mapId(DOMStringImpl* namespaceURI, DOMStringImpl* localName, bool readonly);
- void copyAttributes(NamedAttrMapImpl *other);
- void setElement(ElementImpl *element);
- void detachFromElement();
-
-protected:
- ElementImpl *m_element;
- AttributeImpl *m_attrs;
- unsigned long m_attrCount;
-};
-
-// ------------ inline DOM helper functions ---------------
-
-inline bool checkQualifiedName(const DOMString &qualifiedName, const DOMString &namespaceURI, int *colonPos,
- bool nameCanBeNull, bool nameCanBeEmpty, int *pExceptioncode)
-{
-
- // Not mentioned in spec: throw NAMESPACE_ERR if no qualifiedName supplied
- if (!nameCanBeNull && qualifiedName.isNull()) {
- if (pExceptioncode)
- *pExceptioncode = DOMException::NAMESPACE_ERR;
- return false;
- }
-
- // INVALID_CHARACTER_ERR: Raised if the specified qualified name contains an illegal character.
- if (!qualifiedName.isNull() && !Element::khtmlValidQualifiedName(qualifiedName)
- && ( !qualifiedName.isEmpty() || !nameCanBeEmpty ) ) {
- if (pExceptioncode)
- *pExceptioncode = DOMException::INVALID_CHARACTER_ERR;
- return false;
- }
-
- // NAMESPACE_ERR:
- // - Raised if the qualifiedName is malformed,
- // - if the qualifiedName has a prefix and the namespaceURI is null, or
- // - if the qualifiedName is null and the namespaceURI is different from null
- // - if the qualifiedName has a prefix that is "xml" and the namespaceURI is different
- // from "http://www.w3.org/XML/1998/namespace" [Namespaces].
- int colonpos = -1;
- uint i;
- DOMStringImpl *qname = qualifiedName.implementation();
- for (i = 0 ; i < qname->l ; i++) {
- if ((*qname)[i] == ':') {
- colonpos = i;
- break;
- }
- }
-
- if (!qualifiedName.isNull() && Element::khtmlMalformedQualifiedName(qualifiedName) ||
- (colonpos >= 0 && namespaceURI.isNull()) ||
- (qualifiedName.isNull() && !namespaceURI.isNull()) ||
- (colonpos == 3 && qualifiedName[0] == 'x' && qualifiedName[1] == 'm' && qualifiedName[2] == 'l' &&
- namespaceURI != "http://www.w3.org/XML/1998/namespace")) {
- if (pExceptioncode)
- *pExceptioncode = DOMException::NAMESPACE_ERR;
- return false;
- }
- if(colonPos)
- *colonPos = colonpos;
- return true;
-}
-
-inline void splitPrefixLocalName(DOMStringImpl *qualifiedName, DOMString &prefix, DOMString &localName, int colonPos = -2)
-{
- if (colonPos == -2)
- for (uint i = 0 ; i < qualifiedName->l ; ++i)
- if (qualifiedName->s[i] == ':') {
- colonPos = i;
- break;
- }
- if (colonPos >= 0) {
- prefix = qualifiedName->copy();
- localName = prefix.split(colonPos+1);
- prefix.implementation()->truncate(colonPos);
- } else
- localName = qualifiedName->copy();
-}
-
-} //namespace
-
-#endif
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