private bool IsAtomDefaultNamespace(XmlWriter writer)
{
string prefix = writer.LookupPrefix(BaseNameTable.NSAtom);
if (prefix == null)
{
// if it is not defined, we need to make a choice
// go over all attributes
foreach (IExtensionElementFactory ele in this.ExtensionElements)
{
XmlExtension x = ele as XmlExtension;
// what we need to do here is:
// go over all the attributes. look at all attributes that are namespace related
// if the attribute is another default atomnamespace declaration, change it to some rnd prefix
if (x != null)
{
if (x.Node.NodeType == XmlNodeType.Attribute &&
(String.Compare(x.Node.Name, "xmlns") == 0) &&
(String.Compare(x.Node.Value, BaseNameTable.NSAtom) != 0))
{
return(false);
}
}
}
return(true);
}
if (prefix.Length > 0)
{
return(false);
}
return(true);
}
/// <summary>protected virtual int SaveXmlAttributes(XmlWriter writer)</summary>
/// <param name="writer">the XmlWriter to save to</param>
protected virtual void SaveXmlAttributes(XmlWriter writer)
{
Tracing.Assert(writer != null, "writer should not be null");
if (writer == null)
{
throw new ArgumentNullException("writer");
}
// this will save the base and language attributes, if we have them
if (Utilities.IsPersistable(this.uriBase))
{
//Lookup the prefix and then write the ISBN attribute.
writer.WriteAttributeString("xml", "base", BaseNameTable.NSXml, this.Base.ToString());
}
if (Utilities.IsPersistable(this.atomLanguageTag))
{
writer.WriteAttributeString("xml", "lang", BaseNameTable.NSXml, this.Language);
}
ISupportsEtag se = this as ISupportsEtag;
if (se != null && se.Etag != null)
{
writer.WriteAttributeString(BaseNameTable.gDataPrefix, BaseNameTable.XmlEtagAttribute, BaseNameTable.gNamespace, se.Etag);
}
// first go over all attributes
foreach (IExtensionElementFactory ele in this.ExtensionElements)
{
XmlExtension x = ele as XmlExtension;
// what we need to do here is:
// go over all the attributes. look at all attributes that are namespace related
// if the attribute is another default atomnamespace declaration, change it to some rnd prefix
if (x != null)
{
if (x.Node.NodeType == XmlNodeType.Attribute)
{
ele.Save(writer);
}
}
}
AddOtherNamespaces(writer);
// now just the non attributes
foreach (IExtensionElementFactory ele in this.ExtensionElements)
{
XmlExtension x = ele as XmlExtension;
if (x != null)
{
if (x.Node.NodeType == XmlNodeType.Attribute)
{
// skip the guy
continue;
}
}
ele.Save(writer);
}
}