void onDeletedTweetUIUpdate(Tweet tweet)
{
Interlocked.Decrement(ref nbOutstandingOperations);
// scroll only after X seconds
if (DateTime.Now.Ticks - lastDataGridScroll > (TimeSpan.TicksPerSecond * MIN_SCROLL_INTERVAL))
{
lock (_lockerLastDataGridScroll)
{
if (DateTime.Now.Ticks - lastDataGridScroll > (TimeSpan.TicksPerSecond * MIN_SCROLL_INTERVAL))
{
//update datagrid
RunOnUIThread(delegate()
{
gridTweets.SelectedItem = tweet;
gridTweets.BringItemIntoView(tweet);
});
lastDataGridScroll = DateTime.Now.Ticks;
}
}
}
//update progressbar
RunOnUIThread(delegate()
{
progressBar.Value = 100 - (nbOutstandingOperations * 100 / nbTweetsToErase);
txtPrcnt.Text = 100 - (nbOutstandingOperations * 100 / nbTweetsToErase) + "%";
});
}
//We start multiple actions in parallel to delete tweets
void EraseTweetsAction(TwitterContext ctx, CancellationToken cancelToken)
{
int nextTweetID = getNextTweetIDSync();
#if DEBUG
Random rnd = new Random();
#endif
//Are we done?
while (nextTweetID != Int32.MinValue)
{
//We can't cancel here, we have already fetched a new ID and if we cancel here it will never be deteled
Tweet tweet = tweets[nextTweetID];
//Clear Tweets logic here
try
{
#if DEBUG
Thread.Sleep(sleepFakeWaitMilliseconds);
if (rnd.Next() % 3 == 0) // Simulate error
{
throw new ArgumentNullException();
}
else
{
throw new Exception("Sorry, that page does not exist");
}
#else
Status ret = ctx.DestroyStatus(tweet.ID);
#endif
tweet.Status = STATUS_DELETED;
}
catch (Exception ex)
{
if (ex.Message.Contains("Sorry, that page does not exist"))
{
tweet.Status = STATUS_NOT_FOUND;
}
else if (ex.Message.Contains("You may not delete another user's status"))
{
tweet.Status = STATUS_NOT_ALLOWED;
}
else
{
tweet.Status = STATUS_ERROR;
var tmp = new tweetTJson()
{
created_at = tweet.Date.ToString("yyyy-MM-dd H:m:s zzz"), id_str = tweet.ID, text = tweet.Text
};
lock (_lockerNotDeletedTweetsLst)
{
notDeletedTweets.Add(tmp);
}
}
}
onDeletingTweetUIUpdate(tweet);
//We cancel once a tweet is completely handeled, we make sure not to request for a new one
if (cancelToken.IsCancellationRequested)
{
return;
}
nextTweetID = getNextTweetIDSync();
}
}
void ApplyFilterToCollectionView()
{
filters.Add(txtFilterTweets.Text);
if (isRegularExpressionMatch)
{
try
{
// validate that regex pattern is valid
Regex.IsMatch("dummy", txtFilterTweets.Text, RegexOptions.IgnoreCase);
}
catch (Exception)
{
MessageBox.Show(string.Format("Invalid RegEx pattern {0}", txtFilterTweets.Text), "Twitter Archive Eraser");
return;
}
}
// reset previous filter
tweetsCollectionView.Filter = t => { return(true); };
tweetsCollectionView.Refresh();
if (isRegularExpressionMatch)
{
tweetsCollectionView.Filter = t =>
{
Tweet tweet = t as Tweet;
if (tweet == null)
{
return(false);
}
if (filterTargetUsername)
{
return(Regex.IsMatch(tweet.Username, txtFilterTweets.Text, RegexOptions.IgnoreCase) &&
(filterShowRetweetsOnly == true ? tweet.Type == TweetType.Retweet : true));
}
else
{
return(Regex.IsMatch(tweet.Text, txtFilterTweets.Text, RegexOptions.IgnoreCase) &&
(filterShowRetweetsOnly == true ? tweet.Type == TweetType.Retweet : true));
}
};
}
else
{
tweetsCollectionView.Filter = t =>
{
Tweet tweet = t as Tweet;
if (tweet == null)
{
return(false);
}
if (filterTargetUsername)
{
return(tweet.Username.ToLowerInvariant().Contains(txtFilterTweets.Text.ToLowerInvariant()) &&
(filterShowRetweetsOnly == true ? tweet.Type == TweetType.Retweet : true));
}
else
{
return(tweet.Text.ToLowerInvariant().Contains(txtFilterTweets.Text.ToLowerInvariant()) &&
(filterShowRetweetsOnly == true ? tweet.Type == TweetType.Retweet : true));
}
};
}
tweetsCollectionView.Refresh();
}
//We start multiple actions in parallel to delete tweets
void EraseTweetsAction(TwitterContext ctx, CancellationToken cancelToken)
{
int nextTweetID = getNextTweetIDSync();
#if DEBUG_TEST
Random rnd = new Random();
#endif
//Are we done?
while (nextTweetID != Int32.MinValue)
{
//We can't cancel here, we have already fetched a new ID and if we cancel here it will never be deteled
Tweet tweet = tweets[nextTweetID];
//Clear Tweets logic here
try
{
#if DEBUG_TEST1
Thread.Sleep(sleepFakeWaitMilliseconds);
if (rnd.Next() % 3 == 0) // Simulate error
{
throw new ArgumentNullException();
}
else
{
Exception e = new Exception("Sorry, that page does not exist");
throw new Exception("", e);
}
#else
ulong tid = ulong.Parse(tweet.ID);
Status ret = null;
DirectMessage ret2 = null;
switch (TweetsEraseType)
{
case ApplicationSettings.EraseTypes.TweetsAndRetweets:
ret = ctx.DeleteTweetAsync(tid).Result;
break;
case ApplicationSettings.EraseTypes.Favorites:
ret = ctx.DestroyFavoriteAsync(tid).Result;
break;
case ApplicationSettings.EraseTypes.DirectMessages:
ret2 = ctx.DestroyDirectMessageAsync(tid, true).Result;
break;
default:
break;
}
#endif
tweet.Status = STATUS_DELETED;
}
catch (Exception ex)
{
TwitterQueryException exception = ex.InnerException as TwitterQueryException;
if (exception != null && exception.StatusCode == System.Net.HttpStatusCode.NotFound)
{
tweet.Status = STATUS_NOT_FOUND;
}
else if (exception != null &&
(exception.StatusCode == System.Net.HttpStatusCode.Unauthorized || exception.StatusCode == System.Net.HttpStatusCode.Forbidden))
{
tweet.Status = STATUS_NOT_ALLOWED;
}
else
{
tweet.Status = STATUS_ERROR;
var tmp = new tweetTJson()
{
created_at = tweet.Date.ToString("yyyy-MM-dd H:m:s zzz"), id_str = tweet.ID, text = tweet.Text
};
lock (_lockerNotDeletedTweetsLst)
{
notDeletedTweets.Add(tmp);
}
}
}
onDeletingTweetUIUpdate(tweet);
//We cancel once a tweet is completely handeled, we make sure not to request for a new one
if (cancelToken.IsCancellationRequested)
{
return;
}
nextTweetID = getNextTweetIDSync();
}
}
void onDeletingTweetUIUpdate(Tweet tweet)
{
lock (_lockerNbTweetsDeleted)
{
nbTweetsDeleted++;
}
// scroll only after X seconds
if (DateTime.Now.Ticks - lastDataGridScroll > (TimeSpan.TicksPerSecond * MIN_SCROLL_INTERVAL))
{
lock (_lockerLastDataGridScroll)
{
if (DateTime.Now.Ticks - lastDataGridScroll > (TimeSpan.TicksPerSecond * MIN_SCROLL_INTERVAL))
{
//update datagrid
gridTweets.Dispatcher.BeginInvoke(new Action(delegate()
{
gridTweets.SelectedItem = tweet;
gridTweets.BringItemIntoView(tweet);
//gridTweets.ScrollIntoView(tweet);
}));
lastDataGridScroll = DateTime.Now.Ticks;
}
}
}
//update progressbar
progressBar.Dispatcher.BeginInvoke(new Action(delegate()
{
progressBar.Value = nbTweetsDeleted * 100 / nbTweetsToErase;
txtPrcnt.Text = nbTweetsDeleted * 100 / nbTweetsToErase + "%";
}));
}
void onDeletingTweetUIUpdate(Tweet tweet)
{
lock (_lockerNbTweetsDeleted)
{
nbTweetsDeleted++;
}
//update datagrid
gridTweets.Dispatcher.BeginInvoke(new Action(delegate()
{
gridTweets.SelectedItem = tweet;
gridTweets.ScrollIntoView(tweet);
}));
//update progressbar
progressBar.Dispatcher.BeginInvoke(new Action(delegate()
{
progressBar.Value = nbTweetsDeleted * 100 / nbTweetsToErase;
txtPrcnt.Text = nbTweetsDeleted * 100 / nbTweetsToErase + "%";
}));
}