public void ChangePhotoSetPrimaryPhotoAsync(string setId, string photoId)
{
string timestamp = DateTimeUtils.GetTimestamp();
string nonce = Guid.NewGuid().ToString().Replace("-", null);
Dictionary<string, string> paramDict = new Dictionary<string, string>();
paramDict["method"] = "flickr.photosets.setPrimaryPhoto";
paramDict["format"] = "json";
paramDict["nojsoncallback"] = "1";
paramDict["oauth_consumer_key"] = consumerKey;
paramDict["oauth_nonce"] = nonce;
paramDict["oauth_signature_method"] = "HMAC-SHA1";
paramDict["oauth_timestamp"] = timestamp;
paramDict["oauth_token"] = AccessToken;
paramDict["oauth_version"] = "1.0";
paramDict["photoset_id"] = setId;
paramDict["photo_id"] = photoId;
string signature = OAuthCalculateSignature("POST", "https://api.flickr.com/services/rest/", paramDict, AccessTokenSecret);
paramDict["oauth_signature"] = signature;
DispatchPostRequest("POST", "https://api.flickr.com/services/rest/", paramDict,
(response) =>
{
bool success = true;
string errorMessage = "";
try
{
JObject json = JObject.Parse(response);
string status = json["stat"].ToString();
if (status != "ok")
{
success = false;
errorMessage = json["message"].ToString();
}
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
success = false;
}
if (!success)
{
ChangePhotoSetPrimaryExceptionEventArgs exceptionArgs = new ChangePhotoSetPrimaryExceptionEventArgs();
exceptionArgs.PhotoId = photoId;
exceptionArgs.SetId = setId;
exceptionArgs.ErrorMessage = errorMessage;
PhotoSetChangePrimaryException.DispatchEvent(this, exceptionArgs);
}
else
{
ChangePhotoSetPrimaryEventArgs args = new ChangePhotoSetPrimaryEventArgs();
args.PhotoId = photoId;
args.SetId = setId;
PhotoSetChangedPrimary.DispatchEvent(this, args);
}
}, (ex) =>
{
ChangePhotoSetPrimaryExceptionEventArgs exceptionArgs = new ChangePhotoSetPrimaryExceptionEventArgs();
exceptionArgs.PhotoId = photoId;
exceptionArgs.SetId = setId;
exceptionArgs.ErrorMessage = "Unknown network error";
PhotoSetChangePrimaryException.DispatchEvent(this, exceptionArgs);
});
}
private void OnPrimaryPhotoException(object sender, ChangePhotoSetPrimaryExceptionEventArgs e)
{
Dispatcher.BeginInvoke(() => {
if (e.PhotoId != currentProcessingPhotoId)
return;
currentProcessingPhotoId = null;
PhotoListView.Opacity = 1;
PhotoListView.IsEnabled = true;
StatusProgressBar.Visibility = Visibility.Collapsed;
StatusLabel.Foreground = errorMessageBrush;
StatusLabel.Text = e.ErrorMessage;
PhotoListView.SelectedItem = null;
});
}
