public static IElementInitializer Create(IPropertyAdapter propertyAdapter, IEnumerable <object> values, XamlNamespaces namespaces)
{
if (!values.Any())
{
return(ElementInitializer.Empty);
}
if (ElementCollectionContentInitailizer.IsCollectionType(propertyAdapter.PropertyType) &&
!(values.Count() == 1 && values.First() is XamlElement && propertyAdapter.PropertyType.IsAssignableFrom(((XamlElement)values.First()).GetElementType())))
{
IElementInitializer propertyContentInitializer = ElementCollectionContentInitailizer.Create(values, propertyAdapter.PropertyType);
// wrap with a factory that creates the collection (when it's null) before adding its values
return(new ElementPropertyMemberFactoryInitializer(propertyAdapter, propertyContentInitializer));
}
if (values.Count() == 1)
{
if (propertyAdapter.PropertyType == typeof(IFrameworkElementFactory))
{
return(new FrameworkElementFactoryInitializer(propertyAdapter, ElementFactory.FromValue(values.First(), null, namespaces)));
}
IElementFactory contentFactory = ElementFactory.FromValue(values.First(), propertyAdapter.PropertyType, namespaces);
return(new ElementPropertyMemberInitializer(propertyAdapter, contentFactory));
}
throw new Granular.Exception("Member of type \"{0}\" cannot have more than one child", propertyAdapter.PropertyType.Name);
}
private static IElementInitializer CreateContentInitializer(XamlElement element)
{
Type elementType = element.GetElementType();
string contentPropertyName = PropertyAttribute.GetPropertyName <ContentPropertyAttribute>(elementType);
if (!contentPropertyName.IsNullOrEmpty())
{
return(ElementMemberInitializer.Create(new XamlName(contentPropertyName), elementType, element.Values, element.Namespaces));
}
if (ElementCollectionContentInitailizer.IsCollectionType(elementType))
{
return(ElementCollectionContentInitailizer.Create(element.Values, elementType));
}
return(null);
}
public static IElementInitializer Create(IPropertyAdapter propertyAdapter, IEnumerable <object> values, XamlNamespaces namespaces, Uri sourceUri)
{
if (!values.Any())
{
return(ElementInitializer.Empty);
}
if (values.Count() == 1)
{
object value = values.First();
if (propertyAdapter.PropertyType == typeof(IFrameworkElementFactory))
{
return(new FrameworkElementFactoryInitializer(propertyAdapter, ElementFactory.FromValue(value, null, namespaces, sourceUri)));
}
Type valueType = value is XamlElement ? ((XamlElement)value).GetElementType() : value.GetType();
ITypeConverter typeConverter;
if (propertyAdapter.PropertyType.IsAssignableFrom(valueType) || typeof(IMarkupExtension).IsAssignableFrom(valueType) || TypeConverter.TryGetTypeConverter(valueType, propertyAdapter.PropertyType, out typeConverter))
{
IElementFactory contentFactory = ElementFactory.FromValue(value, propertyAdapter.PropertyType, namespaces, sourceUri);
return(new ElementPropertyMemberInitializer(propertyAdapter, contentFactory));
}
}
if (ElementCollectionContentInitailizer.IsCollectionType(propertyAdapter.PropertyType))
{
IElementInitializer propertyContentInitializer = ElementCollectionContentInitailizer.Create(values, propertyAdapter.PropertyType);
// wrap with a factory that creates the collection (when it's null) before adding its values
return(new ElementPropertyMemberFactoryInitializer(propertyAdapter, propertyContentInitializer));
}
if (values.Count() == 1)
{
object value = values.First();
throw new Granular.Exception("Cannot assign value of type \"{0}\" to member of type \"{1}\"", value is XamlElement ? ((XamlElement)value).GetElementType() : value.GetType(), propertyAdapter.PropertyType.Name);
}
throw new Granular.Exception("Member of type \"{0}\" cannot have more than one child", propertyAdapter.PropertyType.Name);
}
private static IElementInitializer CreateContentInitializer(XamlElement element, Type elementType)
{
if (!element.Values.Any())
{
return(null);
}
string contentPropertyName = ContentPropertyAttribute.GetPropertyName(elementType);
if (!contentPropertyName.IsNullOrEmpty())
{
return(ElementMemberInitializer.Create(elementType, contentPropertyName, element.Values, element.Namespaces, element.SourceUri));
}
if (ElementCollectionContentInitailizer.IsCollectionType(elementType))
{
return(ElementCollectionContentInitailizer.Create(element.Values, elementType));
}
throw new Granular.Exception("Cannot add content to element of type \"{0}\" as it's not a collection type and does not declare ContentProperty", elementType.Name);
}
public static IElementFactory FromXamlElement(XamlElement element, Type targetType)
{
Type elementType = element.GetElementType();
if (element.Values.Any() && ContentPropertyAttribute.GetPropertyName(elementType).IsNullOrEmpty() && !ElementCollectionContentInitailizer.IsCollectionType(elementType))
{
return(FromElementFactory(FromXamlElementContent(element), targetType, element.Namespaces, element.SourceUri));
}
IElementInitializer elementInitializer = new ElementInitializer(element);
IElementFactory elementFactory = new ElementFactory(elementType, elementInitializer);
return(FromElementFactory(elementFactory, targetType, element.Namespaces, element.SourceUri));
}
