private void OnAddFavouriteException(object sender, AddFavouriteExceptionEventArgs e)
{
Dispatcher.BeginInvoke(() =>
{
if (e.PhotoId != PhotoSource.ResourceId)
return;
ProgressView.Visibility = Visibility.Collapsed;
StatusLabel.Text = e.Message;
doneButton.IsEnabled = true;
});
}
public void AddPhotoToFavouriteAsync(string photoId)
{
string timestamp = DateTimeUtils.GetTimestamp();
string nonce = Guid.NewGuid().ToString().Replace("-", null);
Dictionary<string, string> paramDict = new Dictionary<string, string>();
paramDict["method"] = "flickr.favorites.add";
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["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)
{
AddFavouriteExceptionEventArgs exceptionArgs = new AddFavouriteExceptionEventArgs();
exceptionArgs.PhotoId = photoId;
exceptionArgs.Message = errorMessage;
AddPhotoAsFavouriteException.DispatchEvent(this, exceptionArgs);
}
else
{
AddFavouriteEventArgs args = new AddFavouriteEventArgs();
args.PhotoId = photoId;
AddedPhotoAsFavourite.DispatchEvent(this, args);
}
}, (ex) =>
{
AddFavouriteExceptionEventArgs exceptionArgs = new AddFavouriteExceptionEventArgs();
exceptionArgs.PhotoId = photoId;
exceptionArgs.Message = "Unknown network error";
AddPhotoAsFavouriteException.DispatchEvent(this, exceptionArgs);
});
}