kjs_dom.cpp

手机浏览器源码程序,功能强大

    DOM::DOMString commandValue(doc.queryCommandValue(args[0].toString(exec).string()));
    // Method returns null DOMString to signal command is unsupported.
    // Micorsoft documentation for this method says:
    // "If not supported [for a command identifier], this method returns a Boolean set to false."
    if (commandValue.isNull())
        return Boolean(false);
    else 
        return String(commandValue);
  }
  default:
    break;
  }

  return Undefined();
}

// -------------------------------------------------------------------------

/* Source for DOMElementProtoTable. Use "make hashtables" to regenerate.
@begin DOMElementProtoTable 17
  getAttribute		DOMElement::GetAttribute	DontDelete|Function 1
  setAttribute		DOMElement::SetAttribute	DontDelete|Function 2
  removeAttribute	DOMElement::RemoveAttribute	DontDelete|Function 1
  getAttributeNode	DOMElement::GetAttributeNode	DontDelete|Function 1
  setAttributeNode	DOMElement::SetAttributeNode	DontDelete|Function 2
  removeAttributeNode	DOMElement::RemoveAttributeNode	DontDelete|Function 1
  getElementsByTagName	DOMElement::GetElementsByTagName	DontDelete|Function 1
  hasAttribute		DOMElement::HasAttribute	DontDelete|Function 1
  getAttributeNS	DOMElement::GetAttributeNS	DontDelete|Function 2
  setAttributeNS	DOMElement::SetAttributeNS	DontDelete|Function 3
  removeAttributeNS	DOMElement::RemoveAttributeNS	DontDelete|Function 2
  getAttributeNodeNS	DOMElement::GetAttributeNodeNS	DontDelete|Function 2
  setAttributeNodeNS	DOMElement::SetAttributeNodeNS	DontDelete|Function 1
  getElementsByTagNameNS DOMElement::GetElementsByTagNameNS	DontDelete|Function 2
  hasAttributeNS	DOMElement::HasAttributeNS	DontDelete|Function 2
# extension for Safari RSS
  scrollByLines         DOMElement::ScrollByLines       DontDelete|Function 1
  scrollByPages         DOMElement::ScrollByPages       DontDelete|Function 1

@end
*/
DEFINE_PROTOTYPE("DOMElement",DOMElementProto)
IMPLEMENT_PROTOFUNC(DOMElementProtoFunc)
IMPLEMENT_PROTOTYPE_WITH_PARENT(DOMElementProto,DOMElementProtoFunc,DOMNodeProto)

const ClassInfo DOMElement::info = { "Element", &DOMNode::info, &DOMElementTable, 0 };
/* Source for DOMElementTable. Use "make hashtables" to regenerate.
@begin DOMElementTable 3
  tagName	DOMElement::TagName                         DontDelete|ReadOnly
  style		DOMElement::Style                           DontDelete|ReadOnly
@end
*/
DOMElement::DOMElement(ExecState *exec, const DOM::Element &e)
  : DOMNode(DOMElementProto::self(exec), e) { }

DOMElement::DOMElement(const Object &proto, const DOM::Element &e)
  : DOMNode(proto, e) { }

Value DOMElement::tryGet(ExecState *exec, const Identifier &propertyName) const
{
#ifdef KJS_VERBOSE
  kdDebug(6070) << "DOMElement::tryGet " << propertyName.qstring() << endl;
#endif
  DOM::Element element = static_cast<DOM::Element>(node);

  const HashEntry* entry = Lookup::findEntry(&DOMElementTable, propertyName);
  if (entry)
  {
    switch( entry->value ) {
    case TagName:
      return getStringOrNull(element.tagName());
    case Style:
      return getDOMCSSStyleDeclaration(exec,element.style());
    default:
      kdWarning() << "Unhandled token in DOMElement::tryGet : " << entry->value << endl;
      break;
    }
  }
  // We have to check in DOMNode before giving access to attributes, otherwise
  // onload="..." would make onload return the string (attribute value) instead of
  // the listener object (function).
  if (DOMNode::hasProperty(exec, propertyName))
    return DOMNode::tryGet(exec, propertyName);

  DOM::DOMString attr = element.getAttribute( propertyName.string() );
  // Give access to attributes
  if ( !attr.isNull() )
    return getStringOrNull( attr );

  return Undefined();
}

Value DOMElementProtoFunc::tryCall(ExecState *exec, Object &thisObj, const List &args)
{
  if (!thisObj.inherits(&KJS::DOMNode::info)) { // node should be enough here, given the cast
    Object err = Error::create(exec,TypeError);
    exec->setException(err);
    return err;
  }
  DOM::Node node = static_cast<DOMNode *>( thisObj.imp() )->toNode();
  DOM::Element element = static_cast<DOM::Element>(node);

  switch(id) {
    case DOMElement::GetAttribute:
      // getString should be used here, since if the attribute isn't present at all, you should
      // return null and not "".
      return getStringOrNull(element.getAttribute(args[0].toString(exec).string()));
    case DOMElement::SetAttribute:
      element.setAttribute(args[0].toString(exec).string(),args[1].toString(exec).string());
      return Undefined();
    case DOMElement::RemoveAttribute:
      element.removeAttribute(args[0].toString(exec).string());
      return Undefined();
    case DOMElement::GetAttributeNode:
      return getDOMNode(exec,element.getAttributeNode(args[0].toString(exec).string()));
    case DOMElement::SetAttributeNode:
      return getDOMNode(exec,element.setAttributeNode((new DOMNode(exec,KJS::toNode(args[0])))->toNode()));
    case DOMElement::RemoveAttributeNode:
      return getDOMNode(exec,element.removeAttributeNode((new DOMNode(exec,KJS::toNode(args[0])))->toNode()));
    case DOMElement::GetElementsByTagName:
      return getDOMNodeList(exec,element.getElementsByTagName(args[0].toString(exec).string()));
    case DOMElement::HasAttribute: // DOM2
      return Boolean(element.hasAttribute(args[0].toString(exec).string()));
    case DOMElement::GetAttributeNS: // DOM2
      return String(element.getAttributeNS(args[0].toString(exec).string(),args[1].toString(exec).string()));
    case DOMElement::SetAttributeNS: // DOM2
      element.setAttributeNS(args[0].toString(exec).string(),args[1].toString(exec).string(),args[2].toString(exec).string());
      return Undefined();
    case DOMElement::RemoveAttributeNS: // DOM2
      element.removeAttributeNS(args[0].toString(exec).string(),args[1].toString(exec).string());
      return Undefined();
    case DOMElement::GetAttributeNodeNS: // DOM2
      return getDOMNode(exec,element.getAttributeNodeNS(args[0].toString(exec).string(),args[1].toString(exec).string()));
    case DOMElement::SetAttributeNodeNS: // DOM2
      return getDOMNode(exec,element.setAttributeNodeNS((new DOMNode(exec,KJS::toNode(args[0])))->toNode()));
    case DOMElement::GetElementsByTagNameNS: // DOM2
      return getDOMNodeList(exec,element.getElementsByTagNameNS(args[0].toString(exec).string(),args[1].toString(exec).string()));
    case DOMElement::HasAttributeNS: // DOM2
      return Boolean(element.hasAttributeNS(args[0].toString(exec).string(),args[1].toString(exec).string()));
    case DOMElement::ScrollByLines:
    case DOMElement::ScrollByPages:
    {
        DOM::DocumentImpl* docimpl = node.handle()->getDocument();
        if (docimpl) {
            docimpl->updateLayoutIgnorePendingStylesheets();
        }            
        khtml::RenderObject *rend = node.handle() ? node.handle()->renderer() : 0L;
        if (rend && rend->hasOverflowClip()) {
            KWQScrollDirection direction = KWQScrollDown;
            int multiplier = args[0].toInt32(exec);
            if (multiplier < 0) {
                direction = KWQScrollUp;
                multiplier = -multiplier;
            }
            KWQScrollGranularity granularity = id == DOMElement::ScrollByLines ? KWQScrollLine : KWQScrollPage;
            rend->layer()->scroll(direction, granularity, multiplier);
        }
        return Undefined();
        
    }
  default:
    return Undefined();
  }
}

// -------------------------------------------------------------------------

/* Source for DOMDOMImplementationProtoTable. Use "make hashtables" to regenerate.
@begin DOMDOMImplementationProtoTable 5
  hasFeature		DOMDOMImplementation::HasFeature		DontDelete|Function 2
# DOM2
  createCSSStyleSheet	DOMDOMImplementation::CreateCSSStyleSheet	DontDelete|Function 2
  createDocumentType	DOMDOMImplementation::CreateDocumentType	DontDelete|Function 3
  createDocument	DOMDOMImplementation::CreateDocument		DontDelete|Function 3
  createHTMLDocument    DOMDOMImplementation::CreateHTMLDocument        DontDelete|Function 1
@end
*/
DEFINE_PROTOTYPE("DOMImplementation",DOMDOMImplementationProto)
IMPLEMENT_PROTOFUNC(DOMDOMImplementationProtoFunc)
IMPLEMENT_PROTOTYPE(DOMDOMImplementationProto,DOMDOMImplementationProtoFunc)

const ClassInfo DOMDOMImplementation::info = { "DOMImplementation", 0, 0, 0 };

DOMDOMImplementation::DOMDOMImplementation(ExecState *exec, const DOM::DOMImplementation &i)
  : DOMObject(DOMDOMImplementationProto::self(exec)), implementation(i) { }

DOMDOMImplementation::~DOMDOMImplementation()
{
  ScriptInterpreter::forgetDOMObject(implementation.handle());
}

Value DOMDOMImplementationProtoFunc::tryCall(ExecState *exec, Object &thisObj, const List &args)
{
  if (!thisObj.inherits(&KJS::DOMDOMImplementation::info)) {
    Object err = Error::create(exec,TypeError);
    exec->setException(err);
    return err;
  }
  DOM::DOMImplementation implementation = static_cast<DOMDOMImplementation *>( thisObj.imp() )->toImplementation();

  switch(id) {
  case DOMDOMImplementation::HasFeature:
    return Boolean(implementation.hasFeature(args[0].toString(exec).string(),
        (args[1].type() != UndefinedType && args[1].type() != NullType) ? args[1].toString(exec).string() : DOMString()));
  case DOMDOMImplementation::CreateDocumentType: // DOM2
    return getDOMNode(exec,implementation.createDocumentType(args[0].toString(exec).string(),args[1].toString(exec).string(),args[2].toString(exec).string()));
  case DOMDOMImplementation::CreateDocument: // DOM2
    return getDOMNode(exec,implementation.createDocument(args[0].toString(exec).string(),args[1].toString(exec).string(),toNode(args[2])));
  case DOMDOMImplementation::CreateCSSStyleSheet: // DOM2
    return getDOMStyleSheet(exec,implementation.createCSSStyleSheet(args[0].toString(exec).string(),args[1].toString(exec).string()));
  case DOMDOMImplementation::CreateHTMLDocument: // DOM2-HTML
    return getDOMNode(exec, implementation.createHTMLDocument(args[0].toString(exec).string()));
  default:
    break;
  }
  return Undefined();
}

// -------------------------------------------------------------------------

const ClassInfo DOMDocumentType::info = { "DocumentType", &DOMNode::info, &DOMDocumentTypeTable, 0 };

/* Source for DOMDocumentTypeTable. Use "make hashtables" to regenerate.
@begin DOMDocumentTypeTable 6
  name			DOMDocumentType::Name		DontDelete|ReadOnly
  entities		DOMDocumentType::Entities	DontDelete|ReadOnly
  notations		DOMDocumentType::Notations	DontDelete|ReadOnly
# DOM2
  publicId		DOMDocumentType::PublicId	DontDelete|ReadOnly
  systemId		DOMDocumentType::SystemId	DontDelete|ReadOnly
  internalSubset	DOMDocumentType::InternalSubset	DontDelete|ReadOnly
@end
*/
DOMDocumentType::DOMDocumentType(ExecState *exec, const DOM::DocumentType &dt)
  : DOMNode( /*### no proto yet*/exec, dt ) { }

Value DOMDocumentType::tryGet(ExecState *exec, const Identifier &propertyName) const
{
  return DOMObjectLookupGetValue<DOMDocumentType, DOMNode>(exec, propertyName, &DOMDocumentTypeTable, this);
}

Value DOMDocumentType::getValueProperty(ExecState *exec, int token) const
{
  DOM::DocumentType type = static_cast<DOM::DocumentType>(node);
  switch (token) {
  case Name:
    return getStringOrNull(type.name());
  case Entities:
    return getDOMNamedNodeMap(exec,type.entities());
  case Notations:
    return getDOMNamedNodeMap(exec,type.notations());
  case PublicId: // DOM2
    return getStringOrNull(type.publicId());
  case SystemId: // DOM2
    return getStringOrNull(type.systemId());
  case InternalSubset: // DOM2
    return getStringOrNull(type.internalSubset());
  default:
    kdWarning() << "DOMDocumentType::getValueProperty unhandled token " << token << endl;
    return Value();
  }
}

// -------------------------------------------------------------------------

/* Source for DOMNamedNodeMapProtoTable. Use "make hashtables" to regenerate.
@begin DOMNamedNodeMapProtoTable 7
  getNamedItem		DOMNamedNodeMap::GetNamedItem		DontDelete|Function 1
  setNamedItem		DOMNamedNodeMap::SetNamedItem		DontDelete|Function 1
  removeNamedItem	DOMNamedNodeMap::RemoveNamedItem	DontDelete|Function 1
  item			DOMNamedNodeMap::Item			DontDelete|Function 1
# DOM2
  getNamedItemNS	DOMNamedNodeMap::GetNamedItemNS		DontDelete|Function 2
  setNamedItemNS	DOMNamedNodeMap::SetNamedItemNS		DontDelete|Function 1
  removeNamedItemNS	DOMNamedNodeMap::RemoveNamedItemNS	DontDelete|Function 2
@end
*/
DEFINE_PROTOTYPE("NamedNodeMap", DOMNamedNodeMapProto)
IMPLEMENT_PROTOFUNC(DOMNamedNodeMapProtoFunc)
IMPLEMENT_PROTOTYPE(DOMNamedNodeMapProto,DOMNamedNodeMapProtoFunc)

const ClassInfo DOMNamedNodeMap::info = { "NamedNodeMap", 0, 0, 0 };

DOMNamedNodeMap::DOMNamedNodeMap(ExecState *exec, const DOM::NamedNodeMap &m)
  : DOMObject(DOMNamedNodeMapProto::self(exec)), map(m) { }

DOMNamedNodeMap::~DOMNamedNodeMap()
{
  ScriptInterpreter::forgetDOMObject(map.handle());
}

// We have to implement hasProperty since we don't use a hashtable for 'length'
// ## this breaks "for (..in..)" though.
bool DOMNamedNodeMap::hasProperty(ExecState *exec, const Identifier &p) const
{
  if (p == lengthPropertyName)
    return true;
  return DOMObject::hasProperty(exec, p);
}

Value DOMNamedNodeMap::tryGet(ExecState* exec, const Identifier &p) const
{
  if (p == lengthPropertyName)
    return Number(map.length());

  // array index ?
  bool ok;
  long unsigned int idx = p.toULong(&ok);
  if (ok)
    return getDOMNode(exec,map.item(idx));

  // Anything else (including functions, defined in the prototype)
  return DOMObject::tryGet(exec, p);
}

Value DOMNamedNodeMapProtoFunc::tryCall(ExecState *exec, Object &thisObj, const List &args)
{
  if (!thisObj.inherits(&KJS::DOMNamedNodeMap::info)) {
    Object err = Error::create(exec,TypeError);
    exec->setException(err);
    return err;
  }
  DOM::NamedNodeMap map = static_cast<DOMNamedNodeMap *>(thisObj.imp())->toMap();

  switch(id) {
    case DOMNamedNodeMap::GetNamedItem:
      return getDOMNode(exec, map.getNamedItem(args[0].toString(exec).string()));
    case DOMNamedNodeMap::SetNamedItem:
      return getDOMNode(exec, map.setNamedItem((new DOMNode(exec,KJS::toNode(args[0])))->toNode()));
    case DOMNamedNodeMap::RemoveNamedItem:
      return getDOMNode(exec, map.removeNamedItem(args[0].toString(exec).string()));
    case DOMNamedNodeMap::Item:
      return getDOMNode(exec, map.item(args[0].toInt32(exec)));
    case DOMNamedNodeMap::GetNamedItemNS: // DOM2
      return getDOMNode(exec, map.getNamedItemNS(args[0].toString(exec).string(),args[1].toString(exec).string()));