private IEnumerable <FileInfoBase> GetFilteredFiles(DirectoryInfoBase directory)
{
var breakSearch = false;
foreach (var file in directory.EnumerateFiles())
{
if (Status == FileSystemVisitorStatus.Stopped)
{
break;
}
var excludeItem = false;
FileFoundEvent?.Invoke(file, ref breakSearch, ref excludeItem);
if (Filter != null && !Filter.Invoke(file))
{
continue;
}
FilterItemActions(file, ref breakSearch, ref excludeItem);
if (breakSearch)
{
Status = FileSystemVisitorStatus.Stopped;
}
if (!excludeItem)
{
yield return(file);
}
}
}
/// <summary>
/// Returns directories and files that are stored in the specified directory
/// </summary>
/// <param name="dir">Start directory</param>
/// <param name="cancelRecursionFlag">Flag to cancel searching</param>
/// <returns>Directories and files that are stored in the specified directory</returns>
private IEnumerable <FileSystemInfoBase> GetDirectoryItems(DirectoryInfoBase dir, ref bool cancelRecursionFlag)
{
var result = new List <FileSystemInfoBase>();
if (cancelRecursionFlag)
{
return(result);
}
foreach (var directory in dir.EnumerateDirectories())
{
var eventParams = new ItemFindedEventArgs {
FullName = directory.FullName
};
OnDirectoryFinded(eventParams);
if (eventParams.CancelSearching)
{
cancelRecursionFlag = true;
result.Add(directory);
return(result);
}
if (!eventParams.ExcludeItemFromResult)
{
result.Add(directory);
}
result.AddRange(GetDirectoryItems(directory, ref cancelRecursionFlag));
if (cancelRecursionFlag)
{
return(result);
}
}
foreach (var fileInfo in dir.EnumerateFiles())
{
var eventParams = new ItemFindedEventArgs {
FullName = fileInfo.FullName
};
OnFileFinded(eventParams);
if (eventParams.CancelSearching)
{
cancelRecursionFlag = true;
result.Add(fileInfo);
return(result);
}
if (!eventParams.ExcludeItemFromResult)
{
result.Add(fileInfo);
}
}
return(result);
}