object IValueProvider.ProvideValue(IServiceProvider serviceProvider)
{
IXmlLineInfo lineInfo;
if (!string.IsNullOrEmpty(Style) && Source != null)
{
throw new XamlParseException($"StyleSheet can not have both a Source and a content", serviceProvider);
}
if (Source != null)
{
lineInfo = (serviceProvider.GetService(typeof(IXmlLineInfoProvider)) as IXmlLineInfoProvider)?.XmlLineInfo;
if (Source.IsAbsoluteUri)
{
throw new XamlParseException($"Source only accepts Relative URIs", lineInfo);
}
var rootObjectType = (serviceProvider.GetService(typeof(IRootObjectProvider)) as IRootObjectProvider)?.RootObject.GetType();
if (rootObjectType == null)
{
return(null);
}
var rootTargetPath = XamlResourceIdAttribute.GetPathForType(rootObjectType);
var resourcePath = ResourceDictionary.RDSourceTypeConverter.GetResourcePath(Source, rootTargetPath);
var assembly = rootObjectType.GetTypeInfo().Assembly;
return(StyleSheet.FromResource(resourcePath, assembly, lineInfo));
}
if (!string.IsNullOrEmpty(Style))
{
using (var reader = new StringReader(Style))
return(StyleSheet.FromReader(reader));
}
throw new XamlParseException($"StyleSheet require either a Source or a content", serviceProvider);
}