public void AddMessage(MessageViewModel message)
{
Messages.Add(message);
ListViewMessages.Items.MoveCurrentToLast();
ListViewMessages.ScrollIntoView(ListViewMessages.Items.CurrentItem);
}
private async void ListBoxRooms_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
RoomViewModel selectedRoom = ListBoxRooms.SelectedItem as RoomViewModel;
if (selectedRoom != null)
{
await hub.Join(selectedRoom.Name);
User.CurrentRoom = selectedRoom.Name;
txtRoomName.Text = User.CurrentRoom;
// Get users and messages
Users = await hub.GetUsers(selectedRoom.Name);
Messages = await hub.GetMessageHistory(selectedRoom.Name);
// Bind them to ListViews
ListViewMessages.ItemsSource = Messages;
ListViewUsers.ItemsSource = Users;
// Auto-scroll to bottom
ListViewMessages.Items.MoveCurrentToLast();
ListViewMessages.ScrollIntoView(ListViewMessages.Items.CurrentItem);
txtOnlineCounter.Text = string.Format("WHO'S HERE ({0})", Users.Count);
CollectionView view = (CollectionView)CollectionViewSource.GetDefaultView(ListViewUsers.ItemsSource);
view.Filter = Filter;
}
}
private void RegisterEvents()
{
connection.On <MessageViewModel>("newMessage", (message) =>
{
Messages.Add(message);
ListViewMessages.Items.MoveCurrentToLast();
ListViewMessages.ScrollIntoView(ListViewMessages.Items.CurrentItem);
});
connection.On <string, string>("getProfileInfo", (displayName, avatar) =>
{
txtUsername.Text = displayName;
Uri uri = new Uri(@"/Images/Avatars/" + avatar, UriKind.Relative);
imgAvatar.Source = new BitmapImage(uri);
});
connection.On <UserViewModel>("addUser", (user) =>
{
Users.Add(user);
txtOnlineCounter.Text = $"WHO'S HERE ({Users.Count})";
});
connection.On <UserViewModel>("removeUser", (user) =>
{
var userToRemove = Users.Where(u => u.Username == user.Username).FirstOrDefault();
Users.Remove(userToRemove);
txtOnlineCounter.Text = $"WHO'S HERE ({Users.Count})";
});
connection.On <RoomViewModel>("addChatRoom", (room) =>
{
Rooms.Add(room);
});
connection.On <RoomViewModel>("removeChatRoom", (room) =>
{
var roomToRemove = Rooms.Where(r => r.Id == room.Id).FirstOrDefault();
Rooms.Remove(roomToRemove);
});
connection.On <string>("onError", (error) =>
{
MessageBox.Show(error);
});
connection.On <string>("onRoomDeleted", (message) =>
{
ListBoxRooms.SelectedIndex = 0;
txtOnlineCounter.Text = $"WHO'S HERE ({Users.Count})";
});
}
private async void ListBoxRooms_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var selectedRoom = ListBoxRooms.SelectedItem as RoomViewModel;
if (selectedRoom != null)
{
await connection.SendAsync("Join", selectedRoom.Name);
User.CurrentRoom = selectedRoom.Name;
txtRoomName.Text = selectedRoom.Name;
await GetUsers(selectedRoom.Name);
await GetMessages(selectedRoom.Name);
ListViewMessages.Items.MoveCurrentToLast();
ListViewMessages.ScrollIntoView(ListViewMessages.Items.CurrentItem);
txtOnlineCounter.Text = $"WHO'S HERE ({Users.Count})";
CollectionView view = (CollectionView)CollectionViewSource.GetDefaultView(ListViewUsers.ItemsSource);
view.Filter = Filter;
}
}
