private async void UploadPhotoAttachment(PhotoAttachmentUpload attachment)
{
attachment.IsUploading = true;
_uploadsEvent.Reset();
try
{
var uploadServer = await ServiceLocator.Vkontakte.Photos.GetMessagesUploadServer();
attachment.Stream.Seek(0, SeekOrigin.Begin);
if (attachment.CancellationToken.IsCancellationRequested)
{
return;
}
var uploadResponse = await ServiceLocator.Vkontakte.Photos.UploadPhoto(uploadServer, attachment.FileName, attachment.Stream);
if (attachment.CancellationToken.IsCancellationRequested)
{
return;
}
if (uploadResponse != null)
{
var photo = await ServiceLocator.Vkontakte.Photos.SaveMessagePhoto(uploadResponse.Server, uploadResponse.Photo, uploadResponse.Hash);
if (attachment.CancellationToken.IsCancellationRequested)
{
return;
}
if (photo != null)
{
attachment.VkPhoto = photo;
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 photo attachment");
}
finally
{
attachment.IsUploading = false;
UpdatePendingAttachments();
}
}
public async void AttachPhotoFromFile(StorageFile file)
{
bool notify = AttachmentUploads.Count == 0;
// Application now has read/write access to the picked file
var photoAttachment = new PhotoAttachmentUpload();
var fileStream = await file.OpenReadAsync();
var stream = fileStream.CloneStream();
fileStream.Dispose();
photoAttachment.Stream = stream.AsStreamForRead();
photoAttachment.FileName = file.Name;
var bi = new BitmapImage();
await bi.SetSourceAsync(stream);
photoAttachment.Photo = bi;
AttachmentUploads.Add(photoAttachment);
UploadPhotoAttachment(photoAttachment);
if (notify)
{
RaisePropertyChanged("AttachmentUploads");
}
}
public async void AttachPhotoFromStream(IRandomAccessStream imageStream, string contentType)
{
bool notify = AttachmentUploads.Count == 0;
// Application now has read/write access to the picked file
var photoAttachment = new PhotoAttachmentUpload();
photoAttachment.Stream = imageStream.AsStreamForRead();
photoAttachment.FileName = "Image." + contentType.Substring(contentType.IndexOf("/") + 1);
var bi = new BitmapImage();
await bi.SetSourceAsync(imageStream);
photoAttachment.Photo = bi;
AttachmentUploads.Add(photoAttachment);
UploadPhotoAttachment(photoAttachment);
if (notify)
{
RaisePropertyChanged("AttachmentUploads");
}
}
