public static IElementFactory FromXamlElement(XamlElement element, Type targetType)
{
Type elementType = element.GetElementType();
if (elementType.GetDefaultConstructor() == null)
{
return FromElementFactory(FromXamlElementContent(element), targetType, element.Namespaces);
}
IElementInitializer elementInitializer = new ElementInitializer(element);
IElementFactory elementFactory = new ElementFactory(elementType, elementInitializer);
return FromElementFactory(elementFactory, targetType, element.Namespaces);
}
public ElementCollectionContentInitializer(Type valueTargetType, IEnumerable <object> values)
{
elementsFactory = values.Select(value => ElementFactory.FromValue(value, valueTargetType, XamlNamespaces.Empty)).ToArray();
}
private static IElementFactory GetKeyDirectiveFactory(XamlElement element, Type keyType)
{
XamlMember keyDirective = element.Directives.FirstOrDefault(directive => directive.Name == XamlLanguage.KeyDirective);
return(keyDirective != null?ElementFactory.FromValue(keyDirective.GetSingleValue(), keyType, element.Namespaces) : null);
}
private static IEnumerable <KeyValueElementFactory> CreateElementsFactories(Type dictionaryType, Type keyType, Type valueType, IEnumerable <object> values)
{
if (values.Any(value => !(value is XamlElement)))
{
throw new Granular.Exception("Can't add a value of type \"{0}\" to a dictionary, as it cannot have a key", values.First(value => !(value is XamlElement)).GetType().Name);
}
IEnumerable <XamlElement> valuesElements = System.Linq.Enumerable.Cast <XamlElement>(values);
bool isValueProviderSupported = dictionaryType.GetCustomAttributes(true).OfType <SupportsValueProviderAttribute>().Any();
List <KeyValueElementFactory> list = new List <KeyValueElementFactory>();
foreach (XamlElement contentChild in valuesElements)
{
bool isShared = contentChild.Directives.All(directive => directive.Name != XamlLanguage.SharedDirective || (bool)TypeConverter.ConvertValue(directive.GetSingleValue(), typeof(bool), XamlNamespaces.Empty, null));
if (!isShared && !isValueProviderSupported)
{
throw new Granular.Exception($"Can't add a non shared value to \"{dictionaryType.FullName}\" as it does not declare a \"SupportsValueProvider\" attribute");
}
IElementFactory contentChildFactory = isValueProviderSupported ? new DeferredValueFactory(contentChild, valueType, isShared) : ElementFactory.FromXamlElement(contentChild, valueType);
list.Add(new KeyValueElementFactory(keyType, contentChildFactory, contentChild, isValueProviderSupported));
}
return(list);
}
