IAttribute <T> CreateAttribute <T>(string name)
{
Type attribType = typeof(T);
if (AllowedAttributes != null && AllowedAttributes.ContainsKey(name))
{
return((IAttribute <T>)AllowedAttributes[name]());
}
//if (!dynamicAttributesPermitted)
// throw new ArgumentOutOfRangeException("name", "Attribute {0} is not allowed on this element.".With(name));
if (attribType.IsValueType ||
attribType == typeof(string) ||
typeof(Nullable).IsAssignableFrom(attribType))
{
return(new PrimaryTypeAttributeNode <T>(name));
}
if (attribType == typeof(MediaType))
{
return((IAttribute <T>) new XhtmlAttributeNode <MediaType>(name, false, media => media.ToString(), str => new MediaType(str)));
}
if (attribType == typeof(IList <Uri>))
{
return((IAttribute <T>) new CharacterSeparatedAttributeNode <Uri>(name, " ", uri => uri.ToString(), s => new Uri(s, UriKind.Absolute)));
}
if (attribType == typeof(IList <MediaType>))
{
return((IAttribute <T>) new CharacterSeparatedAttributeNode <MediaType>(name, " ", mediatype => mediatype.ToString(), str => new MediaType(str)));
}
if (attribType == typeof(IList <string>))
{
return((IAttribute <T>) new CharacterSeparatedAttributeNode <string>(name, " ", i => i, i => i));
}
throw new InvalidOperationException("Could not automatically create attribute of type " + typeof(T));
}
public IAttribute this[string key]
{
get
{
if (_attributes[key] == null && AllowedAttributes != null)
{
if (AllowedAttributes.ContainsKey(key))
{
_attributes[key] = AllowedAttributes[key]();
}
else
{
_attributes[key] = new PrimaryTypeAttributeNode <string>(key);
}
}
return(_attributes[key]);
}
set { _attributes[key] = value; }
}