public void rest_updateChatRoomList_success(System.Net.HttpStatusCode code, dynamic data)
{
using (ChatRoomDataContext context = new ChatRoomDataContext(Con_String))
{
if (!context.DatabaseExists())
{
context.CreateDatabase();
}
foreach (dynamic item in data)
{
MyChatRoom room = new MyChatRoom
{
C_Name = (String)(item.name),
C_ID_String = (String)(item.class_id_string),
C_Course_Number = (int)(item.course_number),
C_Subject_Code = (String)(item.subject_code)
};
String room_string_id = (String)(item.class_id_string);
IEnumerable<MyChatRoom> queryRooms = from MyChatRoom in context.ChatRooms
where MyChatRoom.C_ID_String == room_string_id
select MyChatRoom;
if (queryRooms.Count() <= 0) //If we don't have this room in the database, add it.
context.ChatRooms.InsertOnSubmit(room);
}
context.SubmitChanges();
list_chatrooms.ItemsSource = context.ChatRooms.ToList();
}
progress_chatlist.IsVisible = false;
}
public void pushRawChannel_HttpNotificationReceived(object sender, Microsoft.Phone.Notification.HttpNotificationEventArgs e)
{
string content;
using (System.IO.StreamReader reader = new System.IO.StreamReader(e.Notification.Body))
{
content = reader.ReadToEnd();
}
dynamic m = JsonConvert.DeserializeObject<dynamic>(content);
if (!((String)(m.chat_id)).Equals(App.currentRoom.C_ID_String)) //If this isn't for our current room, ignore it.
return;
ChatMessage msg = new ChatMessage
{
msg_id = (int)(m.message_id),
sender_id = (int)(m.user_id),
sender_name = (String)(m.display_name),
msg_string = (String)(m.message_string),
chatroom_id = App.currentRoom.C_ID
};
Dispatcher.BeginInvoke(() => addMessage(msg));
using (ChatRoomDataContext context = new ChatRoomDataContext(MainPage.Con_String))
{
context.ChatMessages.InsertOnSubmit(msg);
context.SubmitChanges();
}
//throw new NotImplementedException();
}
// Constructor
public MainPage()
{
InitializeComponent();
//Load up database
using (ChatRoomDataContext context = new ChatRoomDataContext(Con_String))
{
if (!context.DatabaseExists())
{
context.CreateDatabase();
}
list_chatrooms.ItemsSource = context.ChatRooms.ToList();
updateChatRoomList();
}
}
public void rest_load_history_success(System.Net.HttpStatusCode code, dynamic data)
{
if (data != null)
{
foreach (dynamic item in data)
{
ChatMessage msg = new ChatMessage
{
msg_id = (int)(item.id),
sender_id = (int)(item.user_id),
sender_name = (String)(item.display_name),
msg_string = (String)(item.message_string),
chatroom_id = App.currentRoom.C_ID
};
chat_messages.Add(msg);
using (ChatRoomDataContext context = new ChatRoomDataContext(MainPage.Con_String))
{
context.ChatMessages.InsertOnSubmit(msg);
context.SubmitChanges();
}
}
list_messages.ScrollTo(chat_messages.Last());
}
progress_history.IsVisible = false;
/*
chat_timer = new DispatcherTimer();
chat_timer.Interval = TimeSpan.FromMilliseconds(2000);
chat_timer.Tick += new EventHandler(chat_tick);
chat_timer.Start();
*/
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
string chatidstring;
if (NavigationContext.QueryString.TryGetValue("id", out chatidstring))
{
using (ChatRoomDataContext context = new ChatRoomDataContext(MainPage.Con_String))
{
IEnumerable<MyChatRoom> queryRooms = from MyChatRoom in context.ChatRooms
where MyChatRoom.C_ID_String == chatidstring
select MyChatRoom;
App.currentRoom = queryRooms.First();
}
}
chatpage_pivot.Title = App.currentRoom.C_Name.ToUpper();
chat_messages = new ObservableCollection<ChatMessage>();
chat_participants = new ObservableCollection<Participant>();
list_messages.ItemsSource = chat_messages;
list_participants.ItemsSource = chat_participants;
loadRecentChatHistory();
loadParticipants();
participants_timer = new DispatcherTimer();
participants_timer.Interval = TimeSpan.FromMilliseconds(10000);
participants_timer.Tick += new EventHandler(participants_tick);
participants_timer.Start();
}
protected void loadRecentChatHistory()
{
//Show progress indicator
progress_history = new ProgressIndicator
{
IsVisible = true,
IsIndeterminate = true,
Text = "Updating Chat Room Listing..."
};
SystemTray.SetProgressIndicator(this, progress_history);
progress_history.IsVisible = true;
//Grab recent history from database
System.Diagnostics.Debug.WriteLine("Loading recent chat from DB...");
using (ChatRoomDataContext context = new ChatRoomDataContext(MainPage.Con_String))
{
IEnumerable<ChatMessage> queryMsgs = from ChatMessage in context.ChatMessages
where ChatMessage.chatroom_id == App.currentRoom.C_ID
select ChatMessage;
foreach (ChatMessage c in queryMsgs)
{
chat_messages.Add(c);
}
}
Dictionary<String, String> chatvars = new Dictionary<String, String>();
chatvars.Add("chat_id", App.currentRoom.C_ID_String);
if (chat_messages.Count <= 0)
{
System.Diagnostics.Debug.WriteLine("No history stored. Fetching from server instead...");
REST historyREST = new REST("chats/fetch_recent", "GET", chatvars);
historyREST.call(rest_load_history_success, rest_load_history_failure);
} else {
progress_history.IsVisible = false;
//Switching to PUSH for this.
//chat_timer = new DispatcherTimer();
//chat_timer.Interval = TimeSpan.FromMilliseconds(2000);
//chat_timer.Tick += new EventHandler(chat_tick);
//chat_timer.Start();
DispatcherTimer scroll_timer = new DispatcherTimer();
scroll_timer.Interval = TimeSpan.FromMilliseconds(100);
scroll_timer.Tick += new EventHandler(scrollChatToBottom);
scroll_timer.Start();
loadNewChat();
}
}
public void rest_load_new_chat_success(System.Net.HttpStatusCode code, dynamic data)
{
if (data != null)
{
foreach (dynamic item in data)
{
ChatMessage msg = new ChatMessage
{
msg_id = (int)(item.id),
sender_id = (int)(item.user_id),
sender_name = (String)(item.display_name),
msg_string = (String)(item.message_string),
chatroom_id = (int)(App.currentRoom.C_ID)
};
chat_messages.Add(msg);
using (ChatRoomDataContext context = new ChatRoomDataContext(MainPage.Con_String))
{
context.ChatMessages.InsertOnSubmit(msg);
context.SubmitChanges();
}
}
list_messages.ScrollTo(chat_messages.Last());
}
}
private void updateChatRoomList()
{
//Show progress indicator
progress_chatlist = new ProgressIndicator
{
IsVisible = true,
IsIndeterminate = true,
Text = "Updating Chat Room Listing..."
};
SystemTray.SetProgressIndicator(this, progress_chatlist);
progress_chatlist.IsVisible = true;
using (ChatRoomDataContext context = new ChatRoomDataContext(Con_String))
{
if (!context.DatabaseExists())
{
context.CreateDatabase();
}
list_chatrooms.ItemsSource = context.ChatRooms.ToList();
REST chatroomREST = new REST("chats", "GET", null);
chatroomREST.call(rest_updateChatRoomList_success,rest_updateChatRoomList_failure);
}
}