private IEnumerable <IFileSystemGallery> UpdateCurrentState()
{
IEnumerable <FileInfo> archives;
IEnumerable <DirectoryInfo> archiveFolders;
if (_observationType.HasFlag(ObservationType.FilesRecursive))
{
archives = SupportedExtensions.GetFilesWithExtensions(_observedFolder, SupportedExtensions.GetArchives(), SearchOption.AllDirectories);
}
else if (_observationType.HasFlag(ObservationType.FilesNonRecursive))
{
archives = SupportedExtensions.GetFilesWithExtensions(_observedFolder, SupportedExtensions.GetArchives());
}
else
{
archives = new List <FileInfo>();
}
if (_observationType.HasFlag(ObservationType.FoldersRecursive))
{
archiveFolders = GetArchiveDirectory(_observedFolder, SupportedExtensions.GetImages(), SearchOption.AllDirectories);
}
else if (_observationType.HasFlag(ObservationType.FoldersNonRecursive))
{
archiveFolders = GetArchiveDirectory(_observedFolder, SupportedExtensions.GetImages());
}
else
{
archiveFolders = new List <DirectoryInfo>();
}
foreach (var archiveFolder in archiveFolders)
{
yield return(new FolderFileSystemGallery(archiveFolder));
}
foreach (var fileInfo in archives)
{
yield return(new ArchiveFileSystemGallery(fileInfo));
}
}