public static RawDataSourceInfoBase GetDataSourceInfoFromBinding(DocumentCompositeNode bindingNode)
{
RawDataSourceInfoBase dataSourceInfoBase = (RawDataSourceInfoBase)null;
DocumentCompositeNode resourceReferenceNode = bindingNode.Properties[BindingSceneNode.SourceProperty] as DocumentCompositeNode;
if (resourceReferenceNode == null)
{
dataSourceInfoBase = (RawDataSourceInfoBase)DataContextHelper.GetElementNameBinding(bindingNode);
}
if (dataSourceInfoBase == null)
{
string bindingPath = DataContextHelper.GetBindingPath(bindingNode);
if (resourceReferenceNode != null && resourceReferenceNode.Type.IsResource)
{
dataSourceInfoBase = DataContextHelper.GetDataSourceInfoFromResourceReference(resourceReferenceNode);
if (!dataSourceInfoBase.IsValid)
{
return(dataSourceInfoBase);
}
dataSourceInfoBase.AppendClrPath(bindingPath);
}
else
{
dataSourceInfoBase = (RawDataSourceInfoBase) new RawDataSourceInfo((DocumentNode)resourceReferenceNode, bindingPath);
}
}
string bindingXpath = DataContextHelper.GetBindingXPath(bindingNode);
dataSourceInfoBase.XmlPath = XmlSchema.CombineXPaths(dataSourceInfoBase.XmlPath, bindingXpath);
if (bindingNode.Properties[BindingSceneNode.RelativeSourceProperty] != null)
{
dataSourceInfoBase.SetInvalid();
}
return(dataSourceInfoBase);
}
private RawDataSourceInfoBase GetRelativeSourceTargetBindingDataSource(DataBindingProcessingContext context)
{
if (context.OuterContext == null || !context.IsStyleOrControlTemplateScope)
{
return((RawDataSourceInfoBase)null);
}
string bindingRelativeSource = this.GetBindingRelativeSource(context);
if (string.IsNullOrEmpty(bindingRelativeSource))
{
return((RawDataSourceInfoBase)null);
}
DataBindingProcessingContext context1 = (DataBindingProcessingContext)null;
if (context.Scope == ProcessingContextScope.Style && bindingRelativeSource == "Self")
{
if (context.OuterContext != null)
{
context1 = context.OuterContext.ParentContext;
}
}
else if (context.Scope == ProcessingContextScope.ControlTemplate && bindingRelativeSource == "TemplatedParent")
{
context1 = this.GetTemplatedParentContext(context);
}
if (context1 == null || PlatformTypes.DictionaryEntry.IsAssignableFrom((ITypeId)context1.DocumentNode.Type))
{
return((RawDataSourceInfoBase)null);
}
string bindingPath = DataContextHelper.GetBindingPath(context.DocumentCompositeNode);
if (string.IsNullOrEmpty(bindingPath))
{
return((RawDataSourceInfoBase)null);
}
IList <ClrPathPart> parts = ClrPropertyPathHelper.SplitPath(bindingPath);
if (parts == null || parts.Count == 0)
{
return((RawDataSourceInfoBase)null);
}
ClrPathPart clrPathPart = parts[0];
if (clrPathPart.Category != ClrPathPartCategory.PropertyName)
{
return((RawDataSourceInfoBase)null);
}
RawDataSourceInfoBase sourceFromProperty = this.GetDataSourceFromProperty(context1, clrPathPart.Path);
if (sourceFromProperty == null || !sourceFromProperty.IsValid)
{
return((RawDataSourceInfoBase)null);
}
string path = ClrPropertyPathHelper.CombinePathParts(parts, 1);
sourceFromProperty.AppendClrPath(path);
return(sourceFromProperty);
}
private static ElementDataSourceInfo GetElementNameBinding(DocumentCompositeNode bindingNode)
{
DocumentNode node = bindingNode.Properties[BindingSceneNode.ElementNameProperty];
if (node == null)
{
return((ElementDataSourceInfo)null);
}
string valueAsString = DocumentPrimitiveNode.GetValueAsString(node);
if (string.IsNullOrEmpty(valueAsString))
{
return(ElementDataSourceInfo.Invalid);
}
DocumentCompositeNode namedElement = node.FindContainingNameScope().FindNode(valueAsString) as DocumentCompositeNode;
if (namedElement == null)
{
return(ElementDataSourceInfo.Invalid);
}
string bindingPath = DataContextHelper.GetBindingPath(bindingNode);
return(new ElementDataSourceInfo(namedElement, bindingPath));
}
