private async void DeleteDeltaFiles(object arg)
{
_deletionBusy = true;
Progress <DeletionProgressReportModel> progress = new Progress <DeletionProgressReportModel>();
progress.ProgressChanged += ProgressReportedEventHandler;
MyDeletedFilesNo = 0;
MyDeletionProgress = 0;
string msg = "completed";
_cts = new CancellationTokenSource();
try
{
if (RSSettingsModel.Instance.DeletePromptSetting)
{
await DeleteDeltaFilesAsync(progress, _cts.Token);
}
else
{
await QuickDeleteDeltaFilesAsync(progress, _cts.Token);
}
}
catch (OperationCanceledException)
{
msg = "cancelled";
}
_cts.Dispose();
if (RSSettingsModel.Instance.DeletePromptSetting == false)
{
// We are using quick parallel delete method (which may have been cancelled) - remove actually deleted items 'manually', when the above loop finishes
foreach (var fd in SessionDeletedFiles)
{
MyDeltaFiles.Remove(fd);
QualifiedRawNo--;
}
MyDeltaFilesView.Refresh();
SessionDeletedFiles.Clear();
OnPropertyRaised("MyDeltaFilesNo");
OnPropertyRaised("MyRejectionRatio");
}
// We have done what we could, now
// Fire the FilesDeleted Event so that the Main Window can update its raw list view, and
// if the confirmation option is set, inform the user about the outcome of deletion.
FilesDeletedEvent();
if (RSSettingsModel.Instance.DeletePromptSetting)
{
WWMessageBox.Show($"Deletion { msg }.\nDeleted { MyDeletedFilesNo } file(s).", "Information", CustomMessageBoxButton.OK, MessageBoxImage.Information);
}
_deletionBusy = false;
return;
}
private async Task DeleteDeltaFilesAsync(IProgress <DeletionProgressReportModel> progress, CancellationToken cancellationToken)
{
DeletionProgressReportModel progressReport = new DeletionProgressReportModel(MyDeltaFiles.Count);
bool ContinueAsking = true;
List <FileDescriptorModel> IterationListCopy = new List <FileDescriptorModel>();
for (int i = MyDeltaFiles.Count - 1; i >= 0; i--)
{
var fd = MyDeltaFiles[i];
if (ContinueAsking)
{
// ask user to confirm deletion in modal message box, by checking the returned result (Cancel, Skip, Delete, Delete All)
MessageBoxResult result = WWMessageBox.ShowOKYesNoCancel($"Confirm deletion of the file:\n{ fd.FullName }", "User decision required", "Delete All", "Delete this one", "Skip", "Cancel", MessageBoxImage.Question);
switch (result)
{
case MessageBoxResult.OK:
ContinueAsking = false;
break;
case MessageBoxResult.Yes:
break;
case MessageBoxResult.No:
continue;
case MessageBoxResult.Cancel:
return;
default:
break;
}
}
await Task.Run(() => DeleteSingleDeltaFile(fd));
progressReport.DeletedFilesNo++;
progressReport.CurrentFd = fd;
progress.Report(progressReport);
cancellationToken.ThrowIfCancellationRequested();
}
return;
}
private void GetFolderListing()
{
if (!Directory.Exists(FolderPath))
{
// Don't throw any exceptions, just inform the user and fallback to default folder, so he can change it later
// This sometimes is called at startup, before MainWindow is created,
// For this occasion, App.xaml.cs needs to modify ShutdownMode and MainWindow Application properties.
WWMessageBox.Show($"GetFolderListing(): Folder does not exist:\n{ FolderPath }\nChanging to default...", "RAW Sync v. 3.0: Warning", CustomMessageBoxButton.OK, MessageBoxImage.Warning);
FolderPath = _folder; // Fallback to default
}
string[] FileEntries = Directory.GetFiles(FolderPath);
foreach (string s in FileEntries)
{
FileDescriptorModel fd = new FileDescriptorModel();
fd.FilePath = s;
FileList.Add(fd);
fd.Id = FileList.Count;
}
return;
}
private void ProgramHelp(object arg)
{
WWMessageBox.Show("Raw Sync 3.0:\n\nSafely delete rejected RAW files,\nbased on matching the list of Processed files.\n\n© 2020 by Wojtek Wasiukiewicz.", "Help", CustomMessageBoxButton.OK, MessageBoxImage.Information);
}
