public ShortProfileView(RectangleF rect, Tweet partialTweet, bool discloseButton)
: this(rect, discloseButton)
{
// Load the picture we have for the user.
if (partialTweet.IsSearchResult)
profilePic.Image = ImageStore.RequestProfilePicture (partialTweet.UserId, null, this);
}
public ConversationViewController(Tweet source)
: base(null, true)
{
convSection = new Section ();
ProcessConversation (source);
Root = new RootElement (Locale.GetText("Conversation")) {
convSection
};
}
public DetailTweetView(RectangleF rect, Tweet tweet, TweetView.TappedEvent handler, DialogViewController parent)
: base(rect)
{
var tweetRect = rect;
if (tweet.Kind != TweetKind.Direct)
tweetRect.Width -= 30;
BackgroundColor = UIColor.Clear;
tweetView = new TweetView (tweetRect, tweet.Text){
BackgroundColor = UIColor.Clear,
};
if (handler != null)
tweetView.Tapped += handler;
AddSubview (tweetView);
float y = tweetView.Frame.Height + PadY;
string thumbUrl, previewUrl;
var picUrl = PicDetect.FindPicUrl (tweet.Text, out thumbUrl, out previewUrl);
if (picUrl != null){
borderAt = y;
SetupImagePreview (parent, y, picUrl, thumbUrl, previewUrl);
y += 90;
}
rect.Y = y;
rect.Height = smallSize;
AddSubview (new UILabel (rect) {
Text = Util.FormatTime (new TimeSpan (DateTime.UtcNow.Ticks - tweet.CreatedAt)) + " ago from " + tweet.Source,
TextColor = UIColor.Gray,
Font = UIFont.SystemFontOfSize (smallSize)
});
y += PadY;
var f = Frame;
f.Y += PadY;
f.Height = y + PadY + smallSize + 2;
Frame = f;
if (tweet.Kind != TweetKind.Direct){
// Now that we now our size, center the button
buttonView = UIButton.FromType (UIButtonType.Custom);
buttonView.Frame = new RectangleF (tweetRect.X + tweetRect.Width, (f.Height-38)/2-4, 38, 38);
UpdateButtonImage (tweet);
buttonView.TouchDown += delegate {
tweet.Favorited = !tweet.Favorited;
Util.MainAppDelegate.FavoriteChanged (tweet);
TwitterAccount.CurrentAccount.Post (String.Format ("http://api.twitter.com/1/favorites/{0}/{1}.json", tweet.Favorited ? "create" : "destroy", tweet.Id),"");
UpdateButtonImage (tweet);
tweet.Replace (Database.Main);
};
AddSubview (buttonView);
}
}
public DetailTweetView(RectangleF rect, Tweet tweet, TweetView.TappedEvent tapped, TweetView.TappedEvent tapAndHold, DialogViewController parent)
: base(rect)
{
var tweetRect = rect;
if (tweet.Kind != TweetKind.Direct)
tweetRect.Width -= 30;
BackgroundColor = UIColor.Clear;
tweetView = new TweetView (tweetRect, tweet.Text, tapped, tapAndHold){
BackgroundColor = UIColor.Clear,
};
AddSubview (tweetView);
float y = tweetView.Frame.Height + PadY;
string thumbUrl, previewUrl;
var picUrl = PicDetect.FindPicUrl (tweet.Text, out thumbUrl, out previewUrl);
if (picUrl != null){
borderAt = y;
SetupImagePreview (parent, y, picUrl, thumbUrl, previewUrl);
y += 90;
}
rect.Y = y;
rect.Height = smallSize;
AddSubview (new UILabel (rect) {
Text = Locale.Format ("{0} ago from {1}", Util.FormatTime (new TimeSpan (DateTime.UtcNow.Ticks - tweet.CreatedAt)), tweet.Source),
TextColor = UIColor.Gray,
BackgroundColor = UIColor.Clear,
Font = UIFont.SystemFontOfSize (smallSize)
});
y += PadY;
var f = Frame;
f.Y += PadY;
f.Height = y + PadY + smallSize + 2;
Frame = f;
if (tweet.Kind != TweetKind.Direct){
// Now that we now our size, center the button
buttonView = UIButton.FromType (UIButtonType.Custom);
buttonView.Frame = new RectangleF (tweetRect.X + tweetRect.Width, (f.Height-38)/2-4, 38, 38);
UpdateButtonImage (tweet.Favorited);
buttonView.TouchDown += delegate {
UpdateButtonImage (!tweet.Favorited);
AppDelegate.MainAppDelegate.ToggleFavorite (tweet);
};
AddSubview (buttonView);
}
}
public PhotoPostViewController (UINavigationController msp, UIImage image, Tweet tweet) : this()
{
this._image = image;
this._MSP = msp;
this.eventImage = tweet.Image;
this.postOptions = tweet.Options;
this.isForEvent = true;
PhotoLocation = new CLLocation(eventImage.Latitude, eventImage.Longitude);
this.root = CreateRoot ();
Description.Value = eventImage.Name;
Keywords.AddRange(tweet.Keywords);
}
public void Retweet(UIViewController controller, Tweet tweet)
{
var sheet = Util.GetSheet (Locale.GetText ("Retweet"));
sheet.AddButton (Locale.GetText ("Retweet"));
sheet.AddButton (Locale.GetText ("Quote Retweet"));
sheet.AddButton (Locale.GetText ("Cancel"));
sheet.CancelButtonIndex = 2;
sheet.Clicked += delegate(object s, UIButtonEventArgs e) {
if (!tweet.Favorited && Util.Defaults.IntForKey ("disableFavoriteRetweets") == 0)
ToggleFavorite (tweet);
if (e.ButtonIndex == 0)
TwitterAccount.CurrentAccount.Post ("http://api.twitter.com/1/statuses/retweet/" + tweet.Id + ".json", "");
else if (e.ButtonIndex == 1){
Composer.Main.Quote (controller, tweet);
}
};
sheet.ShowInView (AppDelegate.MainAppDelegate.MainView);
}
/// <summary>
/// Loads the tweets encoded in the JSon response from the server
/// into the database. Users that are detected in the stream
/// are entered in the user database as well.
/// </summary>
public static int LoadJson(Stream stream, int localAccount, TweetKind kind)
{
Database db = Database.Main;
int count = 0;
JsonValue root;
string userKey;
try {
root = JsonValue.Load (stream);
if (kind == TweetKind.Direct)
userKey = "sender";
else
userKey = "user";
} catch (Exception e) {
Console.WriteLine (e);
return -1;
}
// These are reusable instances that we used during population
var tweet = new Tweet () { Kind = kind, LocalAccountId = localAccount };
var user = new User ();
var start = DateTime.UtcNow;
var usersSeen = new HashSet<long> ();
lock (db){
db.Execute ("BEGIN");
foreach (JsonObject jentry in root){
var juser = jentry [userKey];
bool result;
if (!ParseUser ((JsonObject) juser, user, usersSeen))
continue;
if (kind == TweetKind.Direct)
result = tweet.TryPopulateDirect (jentry);
else
result = tweet.TryPopulate (jentry);
if (result){
PopulateUser (tweet, user);
tweet.Insert (db);
count++;
}
// Repeat user loading for the retweet info
if (tweet.Retweeter != null)
ParseUser ((JsonObject)(jentry ["retweeted_status"]["user"]), user, usersSeen);
}
db.Execute ("COMMIT");
}
var end = DateTime.UtcNow;
Util.Log ("With transactions: Spent {0} ticks in inserting {1} elements", (end-start).Ticks, count);
return count;
}
static Tweet FromJsonEntry(JsonObject jentry, User user)
{
var tweet = new Tweet () { Kind = TweetKind.Transient };
if (!tweet.TryPopulate (jentry))
return null;
PopulateUser (tweet, user);
if (tweet.Retweeter != null){
user = new User ();
user.UpdateFromJson ((JsonObject)(jentry ["retweeted_status"]["user"]));
lock (Database.Main)
Database.Main.Insert (user, "OR REPLACE");
}
return tweet;
}
public override void FavoriteChanged(Tweet tweet)
{
if (!loaded)
return;
CancelMenu ();
try {
Section main = Root [0];
if (tweet.Favorited){
// Lame, inserted at top, but does it matter that much?
main.Insert (0, UITableViewRowAnimation.None, new TweetElement (tweet));
} else {
for (int i = 0; i < main.Count; i++){
var te = main [i] as TweetElement;
if (te == null)
continue;
if (te.Tweet == tweet){
main.Remove (i);
return;
}
}
}
} catch {
}
}
// Once we have a full tweet, setup the rest of the view.
void SetTweet(Tweet fullTweet)
{
this.tweet = fullTweet;
userTimeline.UserReference = User.FromId (tweet.UserId);
shortProfileView.UpdateFromUserId (tweet.UserId);
shortProfileView.PictureTapped += delegate { PictureViewer.Load (this, tweet.UserId); };
shortProfileView.Tapped += LoadFullProfile;
shortProfileView.UrlTapped += delegate { WebViewController.OpenUrl (this, User.FromId (tweet.UserId).Url); };
if (tweet.InReplyToStatus != 0){
var in_reply = new ConversationRootElement (Locale.Format ("In reply to: {0}", tweet.InReplyToUserName), tweet);
main.Add (in_reply);
}
}
// Populates a Tweet object with cached and useful user information
static void PopulateUser(Tweet tweet, User user)
{
if (tweet.Retweeter != null){
tweet.UserId = tweet.RetweeterId;
tweet.Screename = tweet.Retweeter;
tweet.PicUrl = tweet.RetweeterPicUrl;
tweet.RetweeterId = user.Id;
tweet.Retweeter = user.Screenname;
tweet.RetweeterPicUrl = user.PicUrl;
if (tweet.RetweeterPicUrl == null)
Console.WriteLine ("TWEFF");
} else {
tweet.UserId = user.Id;
tweet.Screename = user.Screenname;
tweet.PicUrl = user.PicUrl;
}
}
public void Quote(UIViewController parent, Tweet source)
{
ResetComposer(Locale.GetText("Quote"), "RT @" + source.Screename + " " + source.Text);
Activate(parent);
}
//
// This method is called when the cell is reused to reset
// all of the cell values
//
public void UpdateCell(Tweet tweet)
{
tweetView.Update (tweet);
SetNeedsDisplay ();
}
public ConversationRootElement(string caption, Tweet source) : base(caption)
{
this.source = source;
}
public DetailTweetViewController(Tweet partialTweet) : base(UITableViewStyle.Grouped, null, true)
{
bool isMine = false;
if (partialTweet.IsSearchResult)
{
Tweet.LoadFullTweet(partialTweet.Id, fullTweet => SetTweet(fullTweet));
}
else
{
isMine = partialTweet.UserId == TwitterAccount.CurrentAccount.AccountId;
// Hack until we figure out why DELETE is not working with OAuth
// and making the server return 401 Unauthorized
isMine = false;
}
var handlers = new EventHandler [] { Reply, Retweet, Direct, Delete };
var profileRect = new RectangleF(PadX, 0, View.Bounds.Width - PadX, 100);
var detailRect = new RectangleF(PadX, 0, View.Bounds.Width - 30 - PadX * 2, 0);
shortProfileView = new ShortProfileView(profileRect, partialTweet, true);
profileRect.Height += 8;
var triangle = new TriangleView(UIColor.White, UIColor.FromRGB(171, 171, 171))
{
Frame = new RectangleF(43, shortProfileView.Bounds.Height + 1, 16, 8)
};
var containerView = new UIView(profileRect);
containerView.Add(shortProfileView);
containerView.Add(triangle);
main = new Section(containerView)
{
new UIViewElement(null, new DetailTweetView(detailRect, partialTweet, TapHandler, TapAndHoldHandler, this), false)
{
Flags = UIViewElement.CellFlags.DisableSelection
}
};
Section replySection = new Section();
if (partialTweet.Kind == TweetKind.Direct)
{
replySection.Add(new StringElement(Locale.GetText("Direct Reply"), delegate { Direct(this, EventArgs.Empty); }));
}
else
{
replySection.Add(new UIViewElement(null, new ButtonsView(isMine ? 4 : 3, buttons, handlers), true)
{
Flags = UIViewElement.CellFlags.DisableSelection | UIViewElement.CellFlags.Transparent
});
}
userTimeline = TimelineRootElement.MakeTimeline(partialTweet.Screename, Locale.GetText("User's timeline"), "http://api.twitter.com/1/statuses/user_timeline.json?skip_user=true&screen_name=" + partialTweet.Screename, User.FromTweet(partialTweet));
tweet = partialTweet;
if (!partialTweet.IsSearchResult)
{
SetTweet(partialTweet);
}
Root = new RootElement(partialTweet.Screename)
{
main,
replySection,
new Section()
{
userTimeline
}
};
}
void TapAndHoldHandler(string data)
{
UIActionSheet sheet;
if (Tweet.IndexOfUrlStarter(data, 0) != -1)
{
sheet = Util.GetSheet(data);
sheet.AddButton(Locale.GetText("Open"));
sheet.AddButton(Locale.GetText("Open in Safari"));
sheet.AddButton(Locale.GetText("Copy"));
sheet.AddButton(Locale.GetText("Cancel"));
sheet.CancelButtonIndex = 3;
sheet.Clicked += delegate(object sender, UIButtonEventArgs e) {
if (e.ButtonIndex == 0)
{
AppDelegate.MainAppDelegate.Open(this, data);
}
else if (e.ButtonIndex == 1)
{
UIApplication.SharedApplication.OpenUrl(new NSUrl(data));
}
else if (e.ButtonIndex == 2)
{
UIPasteboard.General.SetValue(new NSString(data), "public.utf8-plain-text");
}
};
}
else if (data [0] == '@')
{
sheet = Util.GetSheet(data);
sheet.AddButton(Locale.GetText("Reply"));
sheet.AddButton(Locale.GetText("Private Reply"));
sheet.AddButton(Locale.GetText("Open profile"));
sheet.AddButton(Locale.GetText("Search mentions"));
sheet.AddButton(Locale.GetText("Cancel"));
sheet.CancelButtonIndex = 4;
sheet.Clicked += delegate(object sender, UIButtonEventArgs e) {
switch (e.ButtonIndex)
{
case 0:
Composer.Main.ReplyTo(this, tweet, data);
break;
case 1:
Composer.Main.Direct(this, data.Substring(1));
break;
case 2:
AppDelegate.MainAppDelegate.Open(this, data);
break;
case 3:
ActivateController(new SearchViewController(data)
{
Account = TwitterAccount.CurrentAccount
});
break;
}
};
}
else if (data [0] == '#')
{
sheet = Util.GetSheet(data);
sheet.AddButton(Locale.GetText("Search mentions"));
sheet.AddButton(Locale.GetText("Post with topic"));
sheet.AddButton(Locale.GetText("Cancel"));
sheet.CancelButtonIndex = 2;
sheet.Clicked += delegate(object sender, UIButtonEventArgs e) {
if (e.ButtonIndex == 0)
{
ActivateController(new SearchViewController(data)
{
Account = TwitterAccount.CurrentAccount
});
}
else if (e.ButtonIndex == 1)
{
Composer.Main.NewTweet(this, data + " ");
}
};
}
else
{
return;
}
sheet.ShowInView(AppDelegate.MainAppDelegate.MainView);
}
// Broadcast the change, since tweets can be instantiated multiple times.
void FavoriteChanged(Tweet tweet)
{
favorites.FavoriteChanged (tweet);
main.FavoriteChanged (tweet);
mentions.FavoriteChanged (tweet);
}
public ConversationRootElement(string caption, Tweet source)
: base(caption)
{
this.source = source;
}
public TweetCellView(Tweet tweet)
: base()
{
Update (tweet);
Opaque = true;
BackgroundColor = UIColor.White;
}
// Returns an IEnumerable of tweets when parsing search
// results from twitter. The returned Tweet objects are
// not really complete and have the UserId busted (negative
// numbers) since the userids returned by twitter for
// searches have no relationship with the rest of the system
public static IEnumerable<Tweet> TweetsFromSearchResults(Stream stream)
{
JsonValue root;
try {
root = JsonValue.Load (stream);
} catch (Exception e) {
Console.WriteLine (e);
yield break;
}
foreach (JsonObject result in root ["results"]){
Tweet tweet;
try {
tweet = new Tweet () {
CreatedAt = ParseCreationSearch (result),
Id = (long) result ["id"],
Text = ParseText (result),
Source = Util.StripHtml (HttpUtility.HtmlDecode (result ["source"]) ?? ""),
UserId = serial++,
Screename = (string) result ["from_user"],
PicUrl = (string) result ["profile_image_url"]
};
} catch (Exception e){
Console.WriteLine (e);
tweet = null;
}
if (tweet != null)
yield return tweet;
}
}
public void Update(Tweet tweet)
{
this.tweet = tweet;
userText = tweet.Retweeter == null ? tweet.Screename : tweet.Screename + "→" + tweet.Retweeter;
//
// For fake UserIDs (returned by the search), we try looking up by screename now
//
var img = ImageStore.GetLocalProfilePicture (tweet.UserId);
if (img == null)
img = ImageStore.GetLocalProfilePicture (tweet.Screename);
if (img == null)
ImageStore.QueueRequestForPicture (tweet.UserId, tweet.PicUrl, this);
else
tweet.PicUrl = null;
tweetImage = img == null ? ImageStore.DefaultImage : img;
if (tweet.Retweeter == null)
retweetImage = null;
else {
img = ImageStore.GetLocalProfilePicture (tweet.RetweeterId);
if (img == null)
ImageStore.QueueRequestForPicture (tweet.RetweeterId, tweet.RetweeterPicUrl, this);
else
tweet.RetweeterPicUrl = null;
retweetImage = img == null ? ImageStore.DefaultImage : img;
}
SetNeedsDisplay ();
}
public DetailTweetViewController(Tweet partialTweet)
: base(UITableViewStyle.Grouped, null, true)
{
bool isMine = false;
if (partialTweet.IsSearchResult)
Tweet.LoadFullTweet (partialTweet.Id, fullTweet => SetTweet (fullTweet));
else {
isMine = partialTweet.UserId == TwitterAccount.CurrentAccount.AccountId;
// Hack until we figure out why DELETE is not working with OAuth
// and making the server return 401 Unauthorized
isMine = false;
}
var handlers = new EventHandler [] { Reply, Retweet, Direct, Delete };
var profileRect = new RectangleF (PadX, 0, View.Bounds.Width-PadX, 100);
var detailRect = new RectangleF (PadX, 0, View.Bounds.Width-30-PadX*2, 0);
shortProfileView = new ShortProfileView (profileRect, partialTweet, true);
profileRect.Height += 8;
var triangle = new TriangleView (UIColor.White, UIColor.FromRGB (171, 171, 171)) {
Frame = new RectangleF (43, shortProfileView.Bounds.Height+1, 16, 8)
};
var containerView = new UIView (profileRect);
containerView.Add (shortProfileView);
containerView.Add (triangle);
main = new Section (containerView){
new UIViewElement (null, new DetailTweetView (detailRect, partialTweet, TapHandler, TapAndHoldHandler, this), false) {
Flags = UIViewElement.CellFlags.DisableSelection
}
};
Section replySection = new Section ();
if (partialTweet.Kind == TweetKind.Direct)
replySection.Add (new StringElement (Locale.GetText ("Direct Reply"), delegate { Direct (this, EventArgs.Empty); }));
else
replySection.Add (new UIViewElement (null, new ButtonsView (isMine ? 4 : 3, buttons, handlers), true) {
Flags = UIViewElement.CellFlags.DisableSelection | UIViewElement.CellFlags.Transparent
});
userTimeline = TimelineRootElement.MakeTimeline (partialTweet.Screename, Locale.GetText ("User's timeline"), "http://api.twitter.com/1/statuses/user_timeline.json?skip_user=true&screen_name=" + partialTweet.Screename, User.FromTweet (partialTweet));
tweet = partialTweet;
if (!partialTweet.IsSearchResult)
SetTweet (partialTweet);
Root = new RootElement (partialTweet.Screename){
main,
replySection,
new Section () {
userTimeline
}
};
}
public TweetElement(Tweet tweet)
: base(null)
{
Tweet = tweet;
}
//
// This is necessary because the server-side tweet can
// be instantiated in various ways
//
public virtual void FavoriteChanged(Tweet tweet)
{
// Should be abstract, but virtual until I fix all the derived classes
}
public MemberPhotoElement (Tweet tweet, Action<int> goToMembersPhotoAction) : base (null)
{
Tweet = tweet;
_GoToMembersPhotoAction = goToMembersPhotoAction;
}
public override void FavoriteChanged(Tweet tweet)
{
if (Root.Count > 0){
Section main = Root [0];
foreach (var element in main.Elements){
var te = element as TweetElement;
if (te != null && te.Tweet.Id == tweet.Id)
te.Tweet.Favorited = tweet.Favorited;
}
}
}
public PhotoLikersViewController (UIViewController msp, Tweet tweet) : base("PhotoLikersViewController", null)
{
_Tweet = tweet;
_MSP = msp;
}
public static User FromTweet(Tweet tweet)
{
if (tweet.UserId >= ImageStore.TempStartId){
var u = new User ();
u.Screenname = tweet.Screename;
u.Id = tweet.UserId;
u.PicUrl = tweet.PicUrl;
return u;
}
return FromId (tweet.UserId);
}
public pickerDelegate(VCViewController msp, UINavigationController shareNavCont, Tweet tweet)
:this(msp, shareNavCont)
{
this.tweet = tweet;
}
// Replies to a tweet
public void Reply(UIViewController controller, Tweet tweet)
{
if (tweet == null)
throw new ArgumentNullException ("tweet");
int p = tweet.Text.IndexOf ('@');
if (p == -1){
Composer.Main.ReplyTo (controller, tweet, false);
return;
}
// If we have a '@' make sure it is not just @user
// but someone else is included
if (tweet.Text.Substring (p+1).StartsWith (TwitterAccount.CurrentAccount.Username)){
p = tweet.Text.IndexOf ('@', p + 1 + TwitterAccount.CurrentAccount.Username.Length);
if (p == -1){
Composer.Main.ReplyTo (controller, tweet, false);
return;
}
}
var sheet = Util.GetSheet ("");
sheet.AddButton (Locale.GetText ("Reply"));
sheet.AddButton (Locale.GetText ("Reply All"));
sheet.AddButton (Locale.GetText ("Cancel"));
sheet.CancelButtonIndex = 2;
sheet.Clicked += delegate(object s, UIButtonEventArgs e) {
if (e.ButtonIndex == 0)
Composer.Main.ReplyTo (controller, tweet, false);
else if (e.ButtonIndex == 1){
Composer.Main.ReplyTo (controller, tweet, true);
}
};
sheet.ShowInView (MainAppDelegate.MainView);
}
// Populates a Tweet object with cached and useful user information
static void PopulateUser(Tweet tweet, User user)
{
if (tweet.Retweeter != null){
tweet.UserId = tweet.RetweeterId;
tweet.Screename = tweet.Retweeter;
tweet.PicUrl = tweet.RetweeterPicUrl;
tweet.RetweeterId = user.Id;
tweet.Retweeter = user.Screenname;
tweet.RetweeterPicUrl = user.PicUrl;
} else {
tweet.UserId = user.Id;
tweet.Screename = user.Screenname;
tweet.PicUrl = user.PicUrl;
}
}
public void ToggleFavorite(Tweet tweet)
{
tweet.Favorited = !tweet.Favorited;
FavoriteChanged (tweet);
TwitterAccount.CurrentAccount.Post (String.Format ("http://api.twitter.com/1/favorites/{0}/{1}.json", tweet.Favorited ? "create" : "destroy", tweet.Id),"");
lock (Database.Main)
tweet.Replace (Database.Main);
}
protected override IEnumerable <Tweet> GetTweetStream(Stream result)
{
return(Tweet.TweetsFromSearchResults(result, ReferenceUser));
}
/// <summary>
/// Loads as many tweets as possible from the database, and if they are missing
/// requests them from the service.
/// </summary>
void ProcessConversation(Tweet previous)
{
convSection.Add (new TweetElement (previous));
while (previous != null && previous.InReplyToStatus != 0) {
var lookup = Tweet.FromId (previous.InReplyToStatus);
if (lookup == null){
QueryServer (previous.InReplyToStatus);
return;
} else
convSection.Add (new TweetElement (lookup));
previous = lookup;
}
EndConversation ();
}
//
// Alternative version that just parses the users and tweets and returns them as lists
// I thought it would be useful, but it is not. The JSon parsing is too fast, we
// only get bogged down with the actual sqlite insert
//
public static void ParseJson(Stream stream, int localAccount, TweetKind kind, out List<User> users, out List<Tweet> tweets)
{
JsonValue root;
string userKey;
try {
root = JsonValue.Load (stream);
if (kind == TweetKind.Direct)
userKey = "sender";
else
userKey = "user";
} catch (Exception e) {
Console.WriteLine (e);
tweets = null;
users = null;
return;
}
users = new List<User> (root.Count/4);
tweets = new List<Tweet> (root.Count);
var start = DateTime.UtcNow;
var usersSeen = new HashSet<long> ();
var user = new User ();
foreach (JsonObject jentry in root){
var juser = jentry [userKey];
bool result;
try {
user.UpdateFromJson ((JsonObject) juser);
if (!usersSeen.Contains (user.Id)){
usersSeen.Add (user.Id);
users.Add (user);
user = new User ();
}
} catch {
continue;
}
var tweet = new Tweet ();
if (kind == TweetKind.Direct)
result = tweet.TryPopulateDirect (jentry);
else
result = tweet.TryPopulate (jentry);
if (result){
PopulateUser (tweet, user);
tweets.Add (tweet);
}
// Repeat user loading for the retweet info
if (tweet.Retweeter != null){
user.UpdateFromJson ((JsonObject)(jentry ["retweeted_status"]["user"]));
if (!usersSeen.Contains (user.Id)){
usersSeen.Add (user.Id);
users.Add (user);
user = new User ();
}
}
}
var end = DateTime.UtcNow;
Console.WriteLine ("Parsing time for tweet stream: {0} for {1} tweets", end-start, tweets.Count);
}
//
// Alternative version that just parses the users and tweets and returns them as lists
// I thought it would be useful, but it is not. The JSon parsing is too fast, we
// only get bogged down with the actual sqlite insert
//
public static void ParseJson(Stream stream, int localAccount, TweetKind kind, out List <User> users, out List <Tweet> tweets)
{
JsonValue root;
string userKey;
try {
root = JsonValue.Load(stream);
if (kind == TweetKind.Direct)
{
userKey = "sender";
}
else
{
userKey = "user";
}
} catch (Exception e) {
Console.WriteLine(e);
tweets = null;
users = null;
return;
}
users = new List <User> (root.Count / 4);
tweets = new List <Tweet> (root.Count);
var start = DateTime.UtcNow;
var usersSeen = new HashSet <long> ();
var user = new User();
foreach (JsonObject jentry in root)
{
var juser = jentry [userKey];
bool result;
try {
user.UpdateFromJson((JsonObject)juser);
if (!usersSeen.Contains(user.Id))
{
usersSeen.Add(user.Id);
users.Add(user);
user = new User();
}
} catch {
continue;
}
var tweet = new Tweet();
if (kind == TweetKind.Direct)
{
result = tweet.TryPopulateDirect(jentry);
}
else
{
result = tweet.TryPopulate(jentry);
}
if (result)
{
PopulateUser(tweet, user);
tweets.Add(tweet);
}
// Repeat user loading for the retweet info
if (tweet.Retweeter != null)
{
user.UpdateFromJson((JsonObject)(jentry ["retweeted_status"]["user"]));
if (!usersSeen.Contains(user.Id))
{
usersSeen.Add(user.Id);
users.Add(user);
user = new User();
}
}
}
var end = DateTime.UtcNow;
Util.Log("Parsing time for tweet stream: {0} for {1} tweets", end - start, tweets.Count);
}
float Layout()
{
float max = Bounds.Width, segmentLength, lastx = 0, x = 0, y = 0;
int p = 0;
UIFont font = regular, lastFont = null;
string line = "";
blocks.Clear();
while (p < text.Length)
{
int sidx = text.IndexOf(' ', p);
if (sidx == -1)
{
sidx = text.Length - 1;
}
var segment = text.Substring(p, sidx - p + 1);
if (segment.Length == 0)
{
break;
}
// if the word contains @ like ".@foo" or "foo@bar", split there as well
int aidx = segment.IndexOf('@');
if (aidx > 0)
{
segment = segment.Substring(0, aidx);
sidx = p + segment.Length - aidx;
}
var start = segment [0];
if (start == '@' || start == '#' || Tweet.IndexOfUrlStarter(segment, 0) != -1)
{
font = bold;
}
else
{
font = regular;
}
segmentLength = StringSize(segment, font).Width;
// If we would overflow the line.
if (x + segmentLength >= max)
{
// Push the text we have so far, go to next line
if (line != "")
{
blocks.Add(new Block()
{
Bounds = new RectangleF(lastx, y, x - lastx, lineHeight),
Value = line,
Font = lastFont ?? font,
});
lastFont = font;
y += lineHeight;
lastx = 0;
}
// Too long to fit even on its own line, stick it on its own line.
if (segmentLength >= max)
{
var dim = StringSize(segment, font, new SizeF(max, float.MaxValue), UILineBreakMode.WordWrap);
blocks.Add(new Block()
{
Bounds = new RectangleF(new PointF(0, y), dim),
Value = segment,
Font = lastFont ?? font
});
y += dim.Height;
x = 0;
line = "";
}
else
{
x = segmentLength;
line = segment;
}
p = sidx + 1;
lastFont = font;
}
else
{
// append the segment if the font changed, or if the font
// is bold (so we can make a tappable element on its own).
if (x != 0 && (font != lastFont || font == bold))
{
blocks.Add(new Block()
{
Bounds = new RectangleF(lastx, y, x - lastx, lineHeight),
Value = line,
Font = lastFont
});
lastx = x;
line = segment;
lastFont = font;
}
else
{
lastFont = font;
line = line + segment;
}
x += segmentLength;
p = sidx + 1;
}
// remove duplicate spaces
while (p < text.Length && text [p] == ' ')
{
p++;
}
//Console.WriteLine ("p={0}", p);
}
if (line == "")
{
return(y);
}
blocks.Add(new Block()
{
Bounds = new RectangleF(lastx, y, x - lastx, lineHeight),
Value = line,
Font = font
});
return(y + lineHeight);
}
