public static Tuple <string, string, string> GetAvUtiConformance(this NSUrl filePath)
{
NSError error;
NSObject typeValue;
if (filePath.TryGetResource(NSUrl.TypeIdentifierKey, out typeValue, out error))
{
var typeValueString = typeValue as NSString;
if (typeValueString != null)
{
if (UTType.ConformsTo(typeValueString, UTType.Movie))
{
if (UTType.ConformsTo(typeValueString, UTType.MPEG4))
{
return(new Tuple <string, string, string> (UTType.Movie, UTType.MPEG4, filePath.LastPathComponent));
}
if (UTType.ConformsTo(typeValueString, UTType.QuickTimeMovie))
{
return(new Tuple <string, string, string> (UTType.Movie, UTType.QuickTimeMovie, filePath.LastPathComponent));
}
// alert that file is recognized as a movie, but we don't handle it (yet) log it
return(new Tuple <string, string, string> (UTType.Movie, UTType.Movie, filePath.LastPathComponent));
}
if (UTType.ConformsTo(typeValueString, UTType.Audio))
{
if (UTType.ConformsTo(typeValueString, UTType.MP3))
{
return(new Tuple <string, string, string> (UTType.Audio, UTType.MP3, filePath.LastPathComponent));
}
if (UTType.ConformsTo(typeValueString, UTType.WaveformAudio))
{
return(new Tuple <string, string, string> (UTType.Audio, UTType.WaveformAudio, filePath.LastPathComponent));
}
// alert that file is recognized as a audio, but we don't handle it (yet) log it
return(new Tuple <string, string, string> (UTType.Audio, UTType.Audio, filePath.LastPathComponent));
}
}
}
else if (error != null)
{
//Log.Debug ($"Error trying to get resource identifier\n\t{error.Code}\n\t{error.Domain}\n\t{error.Description}");
return(new Tuple <string, string, string> (UTType.PlainText, $"Error trying to get resource identifier\n\t{error.Code}\n\t{error.Domain}\n\t{error.Description}", filePath.LastPathComponent));
}
return(new Tuple <string, string, string> (UTType.PlainText, $"Unsupported file type or path", filePath.LastPathComponent));
}
private bool CanConformsToImageUTI(NSString url)
{
var uti = UTType.CreatePreferredIdentifier(UTType.TagClassFilenameExtension, url.PathExtension, null);
return(UTType.ConformsTo(uti, UTType.Image));
}
public bool ConformsTo(string other) => other is null ? false : UTType.ConformsTo(Id, other);
// Required method for BookUI mode of NSPageController
// We have different cards for image files and everything else.
// Therefore, we have different identifiers
public override string GetIdentifier(NSPageController pv, NSObject obj)
{
var fileObj = (FileObject)obj;
return(UTType.ConformsTo(fileObj.UtiType, UTType.Image) ? kImageNibname : kNibName);
}
public bool ConformsTo(UTI other) => other is null ? false : UTType.ConformsTo(Id, other.Id);