protected virtual object MapRichText(RichTextData richTextData, Type targetType, ILocalization localization)
{
IList <IRichTextFragment> fragments = new List <IRichTextFragment>();
foreach (object fragment in richTextData.Fragments)
{
string htmlFragment = fragment as string;
if (htmlFragment == null)
{
// Embedded Entity Model (for Media Items)
MediaItem mediaItem = (MediaItem)ModelBuilderPipeline.CreateEntityModel((EntityModelData)fragment, typeof(MediaItem), localization);
mediaItem.IsEmbedded = true;
if (mediaItem.MvcData == null)
{
mediaItem.MvcData = mediaItem.GetDefaultView(localization);
}
fragments.Add(mediaItem);
}
else
{
// HTML fragment.
fragments.Add(new RichTextFragment(htmlFragment));
}
}
RichText richText = new RichText(fragments);
if (targetType == typeof(RichText))
{
return(richText);
}
return(richText.ToString());
}
private RichText ResolveRichText(XmlDocument doc, Localization localization)
{
const string xlinkNamespaceUri = "http://www.w3.org/1999/xlink";
XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
nsmgr.AddNamespace("xhtml", "http://www.w3.org/1999/xhtml");
nsmgr.AddNamespace("xlink", xlinkNamespaceUri);
// Process/resolve hyperlinks with XLink attributes
ILinkResolver linkResolver = SiteConfiguration.LinkResolver;
foreach (XmlElement linkElement in doc.SelectNodes("//a[@xlink:href]", nsmgr))
{
// DD4T BinaryPublisher may have resolved a href attribute already (for links to MM Components)
string linkUrl = linkElement.GetAttribute("href");
if (string.IsNullOrEmpty(linkUrl))
{
// No href attribute found. Apparently the XLink refers to a regular Component; we resolve it to a URL here.
string tcmUri = linkElement.GetAttribute("href", xlinkNamespaceUri);
if (!string.IsNullOrEmpty(tcmUri))
{
// Try to resolve directly to Binary content of MM Component.
linkUrl = linkResolver.ResolveLink(tcmUri, resolveToBinary: true);
}
}
if (!string.IsNullOrEmpty(linkUrl))
{
// The link was resolved; set HTML href attribute
linkElement.SetAttribute("href", linkUrl);
ApplyHashIfApplicable(linkElement, localization);
// Remove all XLink and data- attributes
IEnumerable <XmlAttribute> attributesToRemove = linkElement.Attributes.Cast <XmlAttribute>()
.Where(a => a.NamespaceURI == xlinkNamespaceUri || a.LocalName == "xlink" || a.LocalName.StartsWith("data-")).ToArray();
foreach (XmlAttribute attr in attributesToRemove)
{
linkElement.Attributes.Remove(attr);
}
}
else
{
// The link was not resolved; remove the hyperlink.
XmlNode parentNode = linkElement.ParentNode;
foreach (XmlNode childNode in linkElement.ChildNodes)
{
parentNode.InsertBefore(childNode, linkElement);
}
parentNode.RemoveChild(linkElement);
}
}
// Resolve embedded media items
List <EntityModel> embeddedEntities = new List <EntityModel>();
foreach (XmlElement imgElement in doc.SelectNodes("//img[@data-schemaUri]", nsmgr))
{
string[] schemaTcmUriParts = imgElement.GetAttribute("data-schemaUri").Split('-');
SemanticSchema semanticSchema = SemanticMapping.GetSchema(schemaTcmUriParts[1], localization);
// The semantic mapping may resolve to a more specific model type than specified here (e.g. YouTubeVideo instead of just MediaItem)
Type modelType = semanticSchema.GetModelTypeFromSemanticMapping(typeof(MediaItem));
MediaItem mediaItem = (MediaItem)modelType.CreateInstance();
mediaItem.ReadFromXhtmlElement(imgElement);
if (mediaItem.MvcData == null)
{
// In DXA 1.1 MediaItem.ReadFromXhtmlElement was expected to set MvcData.
// In DXA 1.2 this should be done in a GetDefaultView override (which is also used for other embedded Entities)
mediaItem.MvcData = mediaItem.GetDefaultView(localization);
}
embeddedEntities.Add(mediaItem);
// Replace img element with marker XML processing instruction
imgElement.ParentNode.ReplaceChild(
doc.CreateProcessingInstruction(EmbeddedEntityProcessingInstructionName, String.Empty),
imgElement
);
}
// Split the XHTML into fragments based on marker XML processing instructions.
string xhtml = doc.DocumentElement.InnerXml;
IList <IRichTextFragment> richTextFragments = new List <IRichTextFragment>();
int lastFragmentIndex = 0;
int i = 0;
foreach (Match embeddedEntityMatch in EmbeddedEntityProcessingInstructionRegex.Matches(xhtml))
{
int embeddedEntityIndex = embeddedEntityMatch.Index;
if (embeddedEntityIndex > lastFragmentIndex)
{
richTextFragments.Add(new RichTextFragment(xhtml.Substring(lastFragmentIndex, embeddedEntityIndex - lastFragmentIndex)));
}
richTextFragments.Add(embeddedEntities[i++]);
lastFragmentIndex = embeddedEntityIndex + embeddedEntityMatch.Length;
}
if (lastFragmentIndex < xhtml.Length)
{
// Final text fragment
richTextFragments.Add(new RichTextFragment(xhtml.Substring(lastFragmentIndex)));
}
return(new RichText(richTextFragments));
}
