private static IValueProvider GetSource(IValueProvider source)
{
switch (source)
{
case LiteralValue literal:
switch (literal.Value)
{
case string str:
return(new LiteralValue(FromString(str)));
case ImageSource src:
return(new LiteralValue(src));
default:
return(LiteralValue.Null);
}
case null:
return(LiteralValue.Null);
default:
return(source.Wrap(new ImageSourceValueConverter()));
}
}