private void InitializeEntities(TweetMode tweetMode)
{
// NOTE: The STREAMING API and REST API does not provide the same JSON structure based on the TweetMode used.
//
// * STREAMING API : Adds a new ExtendedTweet regardless of the TweetMode. To have some consistency with the REST API,
// we decided that in COMPAT mode, the Entities will be restricted to what is available in the REST API.
// * REST API : Adds FullText and additional properties if the TweetMode is extended.
var isTweetComingFromStreamingAPI = _tweetDTO?.ExtendedTweet != null;
var useStreamingApiExtendedTweetForEntities = tweetMode == TweetMode.Extended && isTweetComingFromStreamingAPI;
// Get the entities and extended_entities for whichever Tweet DTO we're using
var entities = useStreamingApiExtendedTweetForEntities ? _tweetDTO.ExtendedTweet.LegacyEntities : _tweetDTO?.LegacyEntities;
var extendedEntities = useStreamingApiExtendedTweetForEntities ? _tweetDTO.ExtendedTweet.ExtendedEntities : _tweetDTO?.Entities;
// Populate for each type of entity.
Urls = entities?.Urls;
UserMentions = entities?.UserMentions;
Hashtags = entities?.Hashtags;
Symbols = entities?.Symbols;
// Media can also be in the extended_entities field. https://dev.twitter.com/overview/api/entities-in-twitter-objects#extended_entities
// If that's populated, we must use it instead or risk missing media
Medias = extendedEntities?.Medias ?? entities?.Medias ?? new List <IMediaEntity>();
// If this is a retweet, it's also now possible for an entity to get cut off of the end of the tweet entirely.
// If the same Tweet is fetched over the REST API, these entities get excluded, so lets do the same.
if (_tweetDTO?.RetweetedTweetDTO != null)
{
Urls = Urls?.Where(e => e.Indices[0] != e.Indices[1]).ToList();
UserMentions = UserMentions?.Where(e => e.Indices[0] != e.Indices[1]).ToList();
Hashtags = Hashtags?.Where(e => e.Indices[0] != e.Indices[1]).ToList();
Symbols = Symbols?.Where(e => e.Indices[0] != e.Indices[1]).ToList();
Medias = Medias?.Where(e => e.Indices[0] != e.Indices[1]).ToList();
}
}
private void textBox1_TextChanged(object sender, TextChangedEventArgs e)
{
if (ReplacingNow)
{
return;
}
if (!WordStart)
{
foreach (TextChange change in e.Changes)
{
if (change.AddedLength > 0)
{
switch (textBoxContent.Text.Substring(change.Offset, 1))
{
case " ":
case ",":
case ".":
case ":":
case ";":
case "(":
case ")":
case "!":
case "?":
case "\"":
WordStart = true;
UsernameStarted = false;
HashtagStarted = false;
break;
default:
WordStart = false;
break;
}
if (WordStart)
{
break;
}
}
}
}
if (UsernameStarted || HashtagStarted)
{
foreach (TextChange change in e.Changes)
{
if (change.AddedLength > 0)
{
switch (textBoxContent.Text.Substring(change.Offset, 1))
{
case " ":
case ",":
case ".":
case ":":
case ";":
case "(":
case ")":
case "!":
case "?":
case "\"":
WordStart = true;
UsernameStarted = false;
HashtagStarted = false;
break;
default:
WordStart = false;
break;
}
if (WordStart)
{
break;
}
}
}
}
if (WordStart && (!UsernameStarted && !HashtagStarted))
{
foreach (TextChange change in e.Changes)
{
if (change.AddedLength > 0)
{
if (textBoxContent.Text.Substring(change.Offset, 1) == " ")
{
WordStart = true;
continue;
}
else
{
WordStart = false;
}
if (textBoxContent.Text.Substring(change.Offset, 1) == "@")
{
UsernameStarted = true;
StartPosition = change.Offset;
CurrentText = "";
}
else if (textBoxContent.Text.Substring(change.Offset, 1) == "#")
{
HashtagStarted = true;
StartPosition = change.Offset;
CurrentText = "";
}
}
}
}
if (UsernameStarted)
{
foreach (TextChange change in e.Changes)
{
if (change.AddedLength > 0)
{
CurrentText += textBoxContent.Text.Substring(change.Offset, change.AddedLength);
}
else if (change.RemovedLength > 0)
{
if (change.RemovedLength >= CurrentText.Length)
{
UsernameStarted = false;
CurrentText = "";
MatchingTexts.Clear();
popupMatchingUsernames.IsOpen = false;
return;
}
else if (change.RemovedLength == CurrentText.Length)
{
WordStart = true;
CurrentText = "";
popupMatchingUsernames.IsOpen = false;
MatchingTexts.Clear();
}
else
{
CurrentText = CurrentText.Substring(0, CurrentText.Length - change.RemovedLength);
}
}
}
if (Usernames.Where(name => name.ToLower().StartsWith(CurrentText.ToLower())).Count() > 0)
{
MatchingTexts.Clear();
foreach (string username in Usernames.Where(name => name.ToLower().StartsWith(CurrentText.ToLower())))
{
MatchingTexts.Add(username);
if (MatchingTexts.Count >= Properties.Settings.Default.MaxNumberOfEntriesInAutocomplete)
{
break;
}
}
popupMatchingUsernames.PlacementRectangle = textBoxContent.GetRectFromCharacterIndex(textBoxContent.CaretIndex, true);
popupMatchingUsernames.IsOpen = true;
}
else
{
MatchingTexts.Clear();
popupMatchingUsernames.IsOpen = false;
}
}
else if (HashtagStarted)
{
foreach (TextChange change in e.Changes)
{
if (change.AddedLength > 0)
{
CurrentText += textBoxContent.Text.Substring(change.Offset, change.AddedLength);
}
else if (change.RemovedLength > 0)
{
if (change.RemovedLength >= CurrentText.Length)
{
HashtagStarted = false;
CurrentText = "";
MatchingTexts.Clear();
popupMatchingUsernames.IsOpen = false;
return;
}
else if (change.RemovedLength == CurrentText.Length)
{
WordStart = true;
CurrentText = "";
popupMatchingUsernames.IsOpen = false;
MatchingTexts.Clear();
}
else
{
CurrentText = CurrentText.Substring(0, CurrentText.Length - change.RemovedLength);
}
}
}
if (Hashtags.Where(tag => tag.ToLower().StartsWith(CurrentText.ToLower())).Count() > 0)
{
MatchingTexts.Clear();
foreach (string hashtag in Hashtags.Where(tag => tag.ToLower().StartsWith(CurrentText.ToLower())))
{
MatchingTexts.Add(hashtag);
if (MatchingTexts.Count >= Properties.Settings.Default.MaxNumberOfEntriesInAutocomplete)
{
break;
}
}
popupMatchingUsernames.PlacementRectangle = textBoxContent.GetRectFromCharacterIndex(textBoxContent.CaretIndex, true);
popupMatchingUsernames.IsOpen = true;
}
else
{
MatchingTexts.Clear();
popupMatchingUsernames.IsOpen = false;
}
}
}