/// <summary>
/// Wrap an existing <see cref="XDocument"/> as an <see cref="XdmNode"/>. This is the <see cref="XDocument"/>
/// equivalent of <see cref="DocumentBuilder.Wrap(XmlDocument)"/>.
/// </summary>
/// <remarks>
/// PoC:
///
/// Creates wrapper objects for all nodes in the document graph and stores them using
/// <see cref="XObject.AddAnnotation(object)"/>. Will throw if any node has already been wrapped.
///
/// Idealy this would be an extension to <see cref="DocumentBuilder"/>, but DocumentBuilder does not expose
/// its Configuration object publically.
/// </remarks>
public static XdmNode Wrap(this Processor processor, XDocument doc)
{
if (doc.Annotation<XObjectWrapper>() != null)
throw new InvalidOperationException("XDocument is already annotated with a wrapper.");
var docWrapper = (XDocumentWrapper)XObjectWrapper.MakeWrapper(doc);
docWrapper.setConfiguration(processor.Implementation);
doc.AddAnnotation(docWrapper);
foreach (var node in doc.DescendantNodes())
{
if (node.Annotation<XObjectWrapper>() != null)
throw new InvalidOperationException(string.Format("{0} is already annotated with a wrapper.", node.GetType().Name));
node.AddAnnotation(XObjectWrapper.MakeWrapper(node));
if (node.NodeType == XmlNodeType.Element)
{
foreach (var attr in ((XElement)node).Attributes())
{
if (attr.Annotation<XObjectWrapper>() != null)
throw new InvalidOperationException("Attribute is already annotated with a wrapper.");
attr.AddAnnotation(XObjectWrapper.MakeWrapper(attr));
}
}
}
return (XdmNode)XdmValue.Wrap(docWrapper);
}
private static string GetDefaultParagraphStyleName(XDocument stylesXDoc)
{
XElement defaultParagraphStyle;
string defaultParagraphStyleName = null;
StylesInfo stylesInfo = stylesXDoc.Annotation<StylesInfo>();
if (stylesInfo != null)
defaultParagraphStyleName = stylesInfo.DefaultParagraphStyleName;
else
{
defaultParagraphStyle = stylesXDoc
.Root
.Elements(W.style)
.FirstOrDefault(s =>
{
if ((string)s.Attribute(W.type) != "paragraph")
return false;
var defaultAttribute = s.Attribute(W._default);
var isDefault = false;
if (defaultAttribute != null &&
(bool)s.Attribute(W._default).ToBoolean())
isDefault = true;
return isDefault;
});
defaultParagraphStyleName = null;
if (defaultParagraphStyle != null)
defaultParagraphStyleName = (string)defaultParagraphStyle.Attribute(W.styleId);
stylesInfo = new StylesInfo()
{
DefaultParagraphStyleName = defaultParagraphStyleName,
};
stylesXDoc.AddAnnotation(stylesInfo);
}
return defaultParagraphStyleName;
}
