/// <summary>
/// Creates a known element registration for the specified type.
/// </summary>
/// <param name="type">The type for which to create a registration.</param>
/// <param name="attr">The attribute that marks the type as a known type.</param>
/// <returns>The <see cref="KnownType"/> registration that was created.</returns>
private KnownType CreateKnownElementRegistration(Type type, UvmlKnownTypeAttribute attr)
{
var defaultPropertyAttr = (UvmlDefaultPropertyAttribute)type.GetCustomAttributes(typeof(UvmlDefaultPropertyAttribute), true).SingleOrDefault();
var defaultProperty = default(String);
if (defaultPropertyAttr != null)
{
defaultProperty = defaultPropertyAttr.Name;
}
var ctor = type.GetConstructor(new[] { typeof(UltravioletContext), typeof(String) });
if (ctor == null && !type.IsAbstract)
{
throw new InvalidOperationException(PresentationStrings.UIElementInvalidCtor.Format(type.Name));
}
RuntimeHelpers.RunClassConstructor(type.TypeHandle);
var registration = new KnownElement(attr.Name ?? type.Name, type, defaultProperty);
RegisterDefaultComponentTemplate(type, attr);
return(registration);
}
/// <summary>
/// Registers the specified type's default component template, if it has one.
/// </summary>
/// <param name="type">The type that represents the element for which to register a component template.</param>
/// <param name="uiElementAttr">The <see cref="UvmlKnownTypeAttribute"/> instance which is associated with the element type.</param>
private void RegisterDefaultComponentTemplate(Type type, UvmlKnownTypeAttribute uiElementAttr)
{
if (String.IsNullOrEmpty(uiElementAttr.ComponentTemplate))
{
return;
}
var asm = type.Assembly;
using (var stream = asm.GetManifestResourceStream(uiElementAttr.ComponentTemplate))
{
if (stream == null)
{
return;
}
var template = XDocument.Load(stream, LoadOptions.SetBaseUri | LoadOptions.SetLineInfo);
ComponentTemplates.SetDefault(type, template);
}
}
/// <summary>
/// Creates a known type registration for the specified type.
/// </summary>
/// <param name="type">The type for which to create a registration.</param>
/// <param name="attr">The attribute that marks the type as a known type.</param>
/// <returns>The <see cref="KnownType"/> registration that was created.</returns>
private KnownType CreateKnownTypeRegistration(Type type, UvmlKnownTypeAttribute attr)
{
var registration = new KnownType(attr.Name ?? type.Name, type);
return(registration);
}
