private async void UploadDocumentAttachment(DocumentAttachmentUpload attachment)
{
attachment.IsUploading = true;
_uploadsEvent.Reset();
try
{
var uploadServer = await ServiceLocator.Vkontakte.Documents.GetUploadServer();
attachment.Stream.Seek(0, SeekOrigin.Begin);
if (attachment.CancellationToken.IsCancellationRequested)
{
return;
}
var uploadResponse = await ServiceLocator.Vkontakte.Documents.Upload(uploadServer, attachment.FileName, attachment.Stream);
if (attachment.CancellationToken.IsCancellationRequested)
{
return;
}
if (uploadResponse != null)
{
var document = await ServiceLocator.Vkontakte.Documents.Save(uploadResponse.File);
if (attachment.CancellationToken.IsCancellationRequested)
{
return;
}
if (document != null)
{
attachment.VkDocument = document;
attachment.IsUploaded = true;
}
}
}
catch (VkAccessDeniedException)
{
Messenger.Default.Send(new LoginStateChangedMessage()
{
IsLoggedIn = false
});
Navigator.Main.Navigate(typeof(LoginView), clearHistory: true);
}
catch (Exception ex)
{
Logger.Error(ex, "Unable to upload document attachment");
}
finally
{
attachment.IsUploading = false;
UpdatePendingAttachments();
}
}
public async void AttachDocumentFromFile(StorageFile file)
{
bool notify = AttachmentUploads.Count == 0;
var docAttachment = new DocumentAttachmentUpload();
var fileStream = await file.OpenReadAsync();
var stream = fileStream.CloneStream();
fileStream.Dispose();
docAttachment.Stream = stream.AsStreamForRead();
docAttachment.FileName = file.Name;
AttachmentUploads.Add(docAttachment);
UploadDocumentAttachment(docAttachment);
if (notify)
{
RaisePropertyChanged("AttachmentUploads");
}
}
