internal static void ParseObjectAttribute(XamlObject obj, XmlAttribute attribute, bool real)
{
XamlPropertyInfo propertyInfo = GetPropertyInfo(obj.Instance, obj.ElementType, attribute,
obj.OwnerDocument.TypeFinder);
XamlPropertyValue value = null;
var valueText = attribute.Value;
if (valueText.StartsWith("{", StringComparison.Ordinal) &&
!valueText.StartsWith("{}", StringComparison.Ordinal))
{
var xamlObject = MarkupExtensionParser.Parse(valueText, obj, real ? attribute : null);
value = xamlObject;
}
else
{
if (real)
{
value = new XamlTextValue(obj.OwnerDocument, attribute);
}
else
{
value = new XamlTextValue(obj.OwnerDocument, valueText);
}
}
var property = new XamlProperty(obj, propertyInfo, value);
obj.AddProperty(property);
}
void ParseObjectContent(XamlObject obj, XmlElement element, XamlPropertyInfo defaultProperty,
XamlTextValue initializeFromTextValueInsteadOfConstructor)
{
bool isDefaultValueSet = false;
XamlProperty collectionProperty = null;
object collectionInstance = null;
Type collectionType = null;
XmlElement collectionPropertyElement = null;
var elementChildNodes = GetNormalizedChildNodes(element);
if (defaultProperty == null && obj.Instance != null &&
CollectionSupport.IsCollectionType(obj.Instance.GetType()))
{
XamlObject parentObj = obj.ParentObject;
var parentElement = element.ParentNode;
XamlPropertyInfo propertyInfo;
if (parentObj != null)
{
propertyInfo = GetPropertyInfo(settings.TypeFinder, parentObj.Instance, parentObj.ElementType,
parentElement.NamespaceURI, parentElement.LocalName);
collectionProperty = FindExistingXamlProperty(parentObj, propertyInfo);
}
collectionInstance = obj.Instance;
collectionType = obj.ElementType;
collectionPropertyElement = element;
}
else if (defaultProperty != null && defaultProperty.IsCollection && !element.IsEmpty)
{
foreach (XmlNode childNode in elementChildNodes)
{
currentParsedNode = childNode;
XmlElement childElement = childNode as XmlElement;
if (childElement == null || !ObjectChildElementIsPropertyElement(childElement))
{
obj.AddProperty(collectionProperty = new XamlProperty(obj, defaultProperty));
collectionType = defaultProperty.ReturnType;
collectionInstance = defaultProperty.GetValue(obj.Instance);
break;
}
}
}
currentParsedNode = element;
if (collectionType != null && collectionInstance == null && elementChildNodes.Count() == 1)
{
var firstChild = elementChildNodes.First() as XmlElement;
if (ObjectChildElementIsCollectionInstance(firstChild, collectionType))
{
collectionInstance = ParseObject(firstChild);
collectionProperty.PropertyValue = (XamlPropertyValue)collectionInstance;
}
else
{
throw new XamlLoadException("Collection Instance is null");
}
}
else
{
foreach (XmlNode childNode in elementChildNodes)
{
currentParsedNode = childNode;
XmlElement childElement = childNode as XmlElement;
if (childElement != null)
{
if (childElement.NamespaceURI == XamlConstants.XamlNamespace)
{
continue;
}
if (ObjectChildElementIsPropertyElement(childElement))
{
ParseObjectChildElementAsPropertyElement(obj, childElement, defaultProperty);
continue;
}
}
if (initializeFromTextValueInsteadOfConstructor != null)
{
continue;
}
XamlPropertyValue childValue = ParseValue(childNode);
if (childValue != null)
{
if (collectionProperty != null)
{
collectionProperty.ParserAddCollectionElement(collectionPropertyElement, childValue);
CollectionSupport.AddToCollection(collectionType, collectionInstance, childValue);
}
else if (collectionProperty == null && collectionInstance is ResourceDictionary)
{
CollectionSupport.AddToCollection(collectionType, collectionInstance, childValue);
}
else
{
if (defaultProperty == null)
{
throw new XamlLoadException(
"This element does not have a default value, cannot assign to it");
}
if (isDefaultValueSet)
{
throw new XamlLoadException("default property may have only one value assigned");
}
obj.AddProperty(new XamlProperty(obj, defaultProperty, childValue));
isDefaultValueSet = true;
}
}
}
}
currentParsedNode = element;
}
XamlObject ParseObject(XmlElement element)
{
Type elementType = settings.TypeFinder.GetType(element.NamespaceURI, element.LocalName);
if (typeof(FrameworkTemplate).IsAssignableFrom(elementType))
{
var xamlObj = new XamlObject(document, element, elementType,
TemplateHelper.GetFrameworkTemplate(element, currentXamlObject));
xamlObj.ParentObject = currentXamlObject;
return(xamlObj);
}
if (elementType == null)
{
elementType = settings.TypeFinder.GetType(element.NamespaceURI, element.LocalName + "Extension");
if (elementType == null)
{
throw new XamlLoadException("Cannot find type " + element.Name);
}
}
XmlSpace oldXmlSpace = currentXmlSpace;
XamlObject parentXamlObject = currentXamlObject;
if (element.HasAttribute("xml:space"))
{
currentXmlSpace = (XmlSpace)Enum.Parse(typeof(XmlSpace), element.GetAttribute("xml:space"), true);
}
XamlPropertyInfo defaultProperty = GetDefaultProperty(elementType);
XamlTextValue initializeFromTextValueInsteadOfConstructor = null;
if (defaultProperty == null)
{
int numberOfTextNodes = 0;
bool onlyTextNodes = true;
foreach (XmlNode childNode in element.ChildNodes)
{
if (childNode.NodeType == XmlNodeType.Text)
{
numberOfTextNodes++;
}
else if (childNode.NodeType == XmlNodeType.Element)
{
onlyTextNodes = false;
}
}
if (elementType == typeof(string) && numberOfTextNodes == 0)
{
initializeFromTextValueInsteadOfConstructor = new XamlTextValue(document, string.Empty);
}
else if (onlyTextNodes && numberOfTextNodes == 1)
{
foreach (XmlNode childNode in element.ChildNodes)
{
if (childNode.NodeType == XmlNodeType.Text)
{
currentParsedNode = childNode;
initializeFromTextValueInsteadOfConstructor = (XamlTextValue)ParseValue(childNode);
}
}
}
}
currentParsedNode = element;
object instance;
if (initializeFromTextValueInsteadOfConstructor != null)
{
instance = TypeDescriptor.GetConverter(elementType)
.ConvertFromString(
document.GetTypeDescriptorContext(null),
CultureInfo.InvariantCulture,
initializeFromTextValueInsteadOfConstructor.Text);
}
else
{
instance = settings.CreateInstanceCallback(elementType, emptyObjectArray);
}
XamlObject obj = new XamlObject(document, element, elementType, instance);
currentXamlObject = obj;
obj.ParentObject = parentXamlObject;
if (parentXamlObject == null && obj.Instance is DependencyObject)
{
NameScope.SetNameScope((DependencyObject)obj.Instance, new NameScope());
}
ISupportInitialize iSupportInitializeInstance = instance as ISupportInitialize;
if (iSupportInitializeInstance != null)
{
iSupportInitializeInstance.BeginInit();
}
foreach (XmlAttribute attribute in element.Attributes)
{
if (attribute.Value.StartsWith("clr-namespace", StringComparison.OrdinalIgnoreCase))
{
// the format is "clr-namespace:<Namespace here>;assembly=<Assembly name here>"
var clrNamespace = attribute.Value.Split(new[] { ':', ';', '=' });
if (clrNamespace.Length == 4)
{
// get the assembly name
var assembly = settings.TypeFinder.LoadAssembly(clrNamespace[3]);
if (assembly != null)
{
settings.TypeFinder.RegisterAssembly(assembly);
}
}
else
{
// if no assembly name is there, then load the assembly of the opened file.
var assembly = settings.TypeFinder.LoadAssembly(null);
if (assembly != null)
{
settings.TypeFinder.RegisterAssembly(assembly);
}
}
}
if (attribute.NamespaceURI == XamlConstants.XmlnsNamespace)
{
continue;
}
if (attribute.Name == "xml:space")
{
continue;
}
if (GetAttributeNamespace(attribute) == XamlConstants.XamlNamespace ||
GetAttributeNamespace(attribute) == XamlConstants.Xaml2009Namespace)
{
if (attribute.LocalName == "Name")
{
try
{
NameScopeHelper.NameChanged(obj, null, attribute.Value);
}
catch (Exception x)
{
ReportException(x, attribute);
}
}
continue;
}
ParseObjectAttribute(obj, attribute);
}
ParseObjectContent(obj, element, defaultProperty, initializeFromTextValueInsteadOfConstructor);
if (iSupportInitializeInstance != null)
{
iSupportInitializeInstance.EndInit();
}
currentXmlSpace = oldXmlSpace;
currentXamlObject = parentXamlObject;
return(obj);
}
