private void OnRemovePhotoFromFavourite(object sender, RemoveFavouriteEventArgs e) { Photo photo = PhotoCache[e.PhotoId]; photo.IsFavourite = false; if (FavouriteList.Contains(photo)) FavouriteList.Remove(photo); TotalFavouritePhotosCount--; var evt = new PhotoRemovedFromFavouriteEventArgs(); evt.PhotoId = photo.ResourceId; PhotoRemovedFromFavourite.DispatchEvent(this, evt); }
public void RemovePhotoFromFavouriteAsync(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.remove"; 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) { RemoveFavouriteExceptionEventArgs exceptionArgs = new RemoveFavouriteExceptionEventArgs(); exceptionArgs.PhotoId = photoId; exceptionArgs.Message = errorMessage; RemovePhotoFromFavouriteException.DispatchEvent(this, exceptionArgs); } else { RemoveFavouriteEventArgs args = new RemoveFavouriteEventArgs(); args.PhotoId = photoId; RemovePhotoFromFavourite.DispatchEvent(this, args); } }, (ex) => { RemoveFavouriteExceptionEventArgs exceptionArgs = new RemoveFavouriteExceptionEventArgs(); exceptionArgs.PhotoId = photoId; exceptionArgs.Message = "Unknown network error"; RemovePhotoFromFavouriteException.DispatchEvent(this, exceptionArgs); }); }