private async Task BackgroundWorkWithProgressOnUIThreadAsync(string name, Func <IProgressContext, Task <FileOperationContext> > workAsync, Func <FileOperationContext, Task> completeAsync, IProgressContext progress)
{
ProgressBackgroundEventArgs e = new ProgressBackgroundEventArgs(progress);
try
{
Interlocked.Increment(ref _workerCount);
OnOperationStarted(e);
FileOperationContext result = await Task.Run(() => workAsync(progress));
await completeAsync(result);
}
finally
{
OnOperationCompleted(e);
Interlocked.Decrement(ref _workerCount);
}
}
protected virtual void OnOperationCompleted(ProgressBackgroundEventArgs e)
{
OperationCompleted?.Invoke(this, e);
}
