protected virtual void OnCompleted(ThreadWorkerEventArgs e)
{
EventHandler <ThreadWorkerEventArgs> handler = Completed;
if (handler != null)
{
handler(this, e);
}
}
protected virtual async Task OnWorkAsync(ThreadWorkerEventArgs e)
{
Func <ThreadWorkerEventArgs, Task> commandAsync = WorkAsync;
if (commandAsync != null)
{
await commandAsync.Invoke(e);
}
}
protected virtual void OnPrepare(ThreadWorkerEventArgs e)
{
EventHandler <ThreadWorkerEventArgs> handler = Prepare;
if (handler != null)
{
handler(this, e);
}
}
void WorkerCompleted(object sender, ThreadWorkerEventArgs args)
{
BTProgressHUD.Dismiss();
if (args.Result == FileOperationStatus.Canceled)
{
Failed();
return;
}
Succeeded(this.targetFilePath);
}
private void DoWorkerCompleted(ThreadWorkerEventArgs e)
{
try
{
OnCompleting(e);
}
finally
{
CompleteWorker(e);
}
}
void Work(object sender, ThreadWorkerEventArgs args)
{
using (NSAutoreleasePool pool = new NSAutoreleasePool()) {
string targetDirectory = Path.GetTempPath();
string extractedFileName = AxCryptFile.Decrypt(
this.sourceFile,
targetDirectory,
this.key,
AxCryptOptions.None,
this.context);
if (extractedFileName == null)
{
args.Result = FileOperationStatus.Canceled;
return;
}
this.targetFilePath = Path.Combine(targetDirectory, extractedFileName);
args.Result = FileOperationStatus.Success;
}
}
private async Task DoWorkAsync(ThreadWorkerEventArgs e)
{
try
{
await OnWorkAsync(e);
}
catch (OperationCanceledException)
{
e.Result = new FileOperationContext(string.Empty, ErrorStatus.Canceled);
}
catch (AxCryptException ace)
{
New <IReport>().Exception(ace);
e.Result = new FileOperationContext(ace.DisplayContext, ace.InnerException?.Message, ace.ErrorStatus);
}
catch (Exception ex)
{
New <IReport>().Exception(ex);
e.Result = new FileOperationContext(string.Empty, ex.Message, ErrorStatus.Exception);
}
}
private static Task ThreadWorkerCommandHandler(ThreadWorkerEventArgs e)
{
e.Result = new FileOperationContext(String.Empty, ErrorStatus.UnspecifiedError);
return(Task.FromResult <object>(null));
}
private static void ThreadWorkerEventHandler(object sender, ThreadWorkerEventArgs e)
{
e.Result = new FileOperationContext(String.Empty, ErrorStatus.UnspecifiedError);
}
/// <summary>
/// Create a thread worker.
/// </summary>
public ThreadWorker(IProgressContext progress, bool startOnUIThread)
{
_startOnUIThread = startOnUIThread;
_e = new ThreadWorkerEventArgs(new ThreadWorkerProgressContext(progress));
}
private void CompleteWorker(ThreadWorkerEventArgs e)
{
OnCompleted(e);
Dispose(true);
}
private static void ThreadWorkerEventHandler(object sender, ThreadWorkerEventArgs e)
{
e.Result = FileOperationStatus.UnspecifiedError;
}
