public ChatWindow(IWindowServer windowServer, IClient client)
{
ViewModel = new ChatViewModel(windowServer, client);
InitializeComponent();
ViewModel.Messages.CollectionChanged += (sender, e) =>
{
MessageListView.ScrollIntoView(e.NewItems[e.NewItems.Count - 1]);
};
var messageCollectionView = CollectionViewSource.GetDefaultView(MessageListView.ItemsSource) as CollectionView;
Debug.Assert(messageCollectionView != null, nameof(messageCollectionView) + " != null");
messageCollectionView.Filter = (item) =>
{
var message = (ChatMessage)item;
var roomName = message.Room;
if (roomName == null || roomName.Equals("[System]"))
{
return(true);
}
var selectedItem = JoinedRoomList.SelectedItem;
return(roomName.Equals(selectedItem));
};
}
private void ScrollToEnd()
{
if (ServiceManager.Instance.Dispatcher.Thread != Thread.CurrentThread)
{
ServiceManager.Instance.Dispatcher.BeginInvoke((Action)(ScrollToEnd));
return;
}
MessageListView.SelectedIndex = MessageListView.Items.Count - 1;
MessageListView.ScrollIntoView(MessageListView.SelectedItem);
}
private async void Button_Click(object sender, RoutedEventArgs e)
{
if (!(string.IsNullOrEmpty(SendBox.Text) || string.IsNullOrWhiteSpace(SendBox.Text)))
{
MessageInterface.Message messageSent = new MessageInterface.Message(SendBox.Text, true, DateTime.Now);
talkWindow.AddMessage(messageSent);
MessageInterface.Message messageReceived = new MessageInterface.Message();
messageReceived.Content = await connector.QueryAndStore(messageSent.Content);
//messageReceived.Content = Model.Record.replies.Last();
messageReceived.IsSelf = false;
messageReceived.SentTime = DateTime.Now;
talkWindow.AddMessage(messageReceived);
MessageListView.SelectedIndex = MessageListView.Items.Count - 1;
MessageListView.ScrollIntoView(MessageListView.SelectedItem);
}
SendBox.Text = string.Empty;
}
private void ScrollToEnd()
{
//************************************************************************************************************************************
// When Chat conversation is updated then it will scroll to end of chat so recent message should display.
//************************************************************************************************************************************
if (ServiceManager.Instance.Dispatcher.Thread != Thread.CurrentThread)
{
ServiceManager.Instance.Dispatcher.BeginInvoke((Action)(ScrollToEnd));
return;
}
MessageListView.SelectedIndex = MessageListView.Items.Count - 1;
var item = MessageListView.SelectedItem as VATRPChatMessage;
if (item != null)
{
MessageListView.ScrollIntoView(item);
}
}
public void Scroll(int index)
{
MessageListView.SelectedIndex = index;
MessageListView.ScrollIntoView(MessageListView.SelectedItem);
}
public void ScrollStart()
{
_countZero = 1;
MessageListView.SelectedIndex = MessageListView.Items.Count - 1;
MessageListView.ScrollIntoView(MessageListView.SelectedItem);
}
