protected sealed override bool TryCreateAbsoluteUri(Uri baseUri, Uri sourceUri, out Uri result)
{
Uri packUri;
if (sourceUri != null)
{
if (SharedThemeResourceDictionary.TryConvertToPackUri(sourceUri, out packUri))
{
sourceUri = packUri;
}
UriDescription sourceUriDescription;
if (SharedThemeResourceDictionary.TryGetUriDescription(sourceUri, out sourceUriDescription))
{
if (SharedThemeResourceDictionary.IsAssemblyInfoFilled(sourceUriDescription))
{
result = SharedThemeResourceDictionary.CreateUri(sourceUriDescription);
return(true);
}
}
}
if (SharedThemeResourceDictionary.TryConvertToPackUri(baseUri, out packUri))
{
baseUri = packUri;
}
var newBaseUri = this.GetBaseUri();
if (newBaseUri != null)
{
if (SharedThemeResourceDictionary.TryConvertToPackUri(newBaseUri, out packUri))
{
newBaseUri = packUri;
}
if (baseUri != null)
{
Uri combinedUri;
if (SharedThemeResourceDictionary.TryCombineUri(newBaseUri, baseUri, out combinedUri))
{
newBaseUri = combinedUri;
}
}
if (sourceUri != null)
{
return(SharedThemeResourceDictionary.TryCombineUri(newBaseUri, sourceUri, out result));
}
}
else
{
newBaseUri = baseUri;
}
return(base.TryCreateAbsoluteUri(newBaseUri, sourceUri, out result));
}
private static bool TryCombineUri(Uri baseUri, Uri relativeUri, out Uri result)
{
result = null;
Debug.Assert((baseUri != null) && (relativeUri != null));
Debug.Assert(baseUri.IsAbsoluteUri);
UriDescription baseUriDescription;
if (!SharedThemeResourceDictionary.TryGetUriDescription(baseUri, out baseUriDescription))
{
return(false);
}
UriDescription relativeUriDescription;
if (SharedThemeResourceDictionary.TryGetUriDescription(relativeUri, out relativeUriDescription))
{
if (!string.IsNullOrEmpty(relativeUriDescription.AssemblyName) && !string.Equals(relativeUriDescription.AssemblyName, baseUriDescription.AssemblyName, StringComparison.InvariantCultureIgnoreCase))
{
return(false);
}
}
else if (relativeUri.IsAbsoluteUri)
{
return(false);
}
else
{
relativeUriDescription = null;
}
var baseUriPath = baseUriDescription.RelativePath;
var relativeUriPath = (relativeUriDescription != null) ? relativeUriDescription.RelativePath : Uri.EscapeUriString(relativeUri.ToString());
if (relativeUriPath.StartsWith(SharedThemeResourceDictionary.UriPathSeparator, StringComparison.InvariantCultureIgnoreCase))
{
baseUriPath = string.Empty;
relativeUriPath = relativeUriPath.Substring(SharedThemeResourceDictionary.UriPathSeparator.Length);
}
var assemblyDescription = ((relativeUriDescription != null) && !SharedThemeResourceDictionary.IsAssemblyInfoFilled(baseUriDescription))
? relativeUriDescription
: baseUriDescription;
var newBaseUri = SharedThemeResourceDictionary.CreateUri(
assemblyDescription.AssemblyName,
assemblyDescription.AssemblyVersion,
assemblyDescription.AssemblyPublicKeyToken,
baseUriPath);
var newRelativeUri = new Uri(relativeUriPath, UriKind.Relative);
return(Uri.TryCreate(newBaseUri, newRelativeUri, out result));
}