/// <summary>
/// Initializes a new instance of the <see cref="ChatViewModel" /> class
/// </summary>
/// <param name="container"></param>
/// <param name="chat"></param>
public ChatViewModel(XmppChat chat)
: base()
{
this.chat = chat;
// this.emoticonPackage = this.ResolveEmoticonPackage();
this.conversation = new FlowDocument();
this.chat.ChatClosed += new EventHandler(chat_ChatClosed);
this.chat.ReceivedMessage += new EventHandler(chat_ReceivedMessage);
this.NotifyPropertyChanged(() => Contact);
this.ShowMessages();
}
private void chat_ChatClosed(object sender, EventArgs e)
{
// Unbind event handlers
this.chat.ChatClosed -= new EventHandler(chat_ChatClosed);
this.chat.ReceivedMessage -= new EventHandler(chat_ReceivedMessage);
this.chat = null;
}
/// <summary>
/// Opens a new chat view for the given chat instance
/// </summary>
/// <param name="chat">A <see cref="XmppChat"/> instance</param>
public void OpenChatView(XmppChat chat, bool activate)
{
this.Dispatcher.BeginInvoke
(
DispatcherPriority.Normal,
new ThreadStart
(
delegate
{
lock (SyncObject)
{
if (!activate)
{
ChatViewModel viewModel = new ChatViewModel(chat);
ChatView view = new ChatView();
view.DataContext = viewModel;
PivotItem chatViewItem = new PivotItem();
chatViewItem.HorizontalAlignment = HorizontalAlignment.Stretch;
chatViewItem.HorizontalContentAlignment = HorizontalAlignment.Stretch;
chatViewItem.Header = chat.Contact.DisplayName;
chatViewItem.Content = view;
this.chatViews.Add(chat.Contact.ContactId.BareIdentifier, chatViewItem);
this.container.Items.Add(chatViewItem);
this.container.Invalidate();
this.container.SelectedItem = chatViewItem;
}
else
{
this.container.SelectedItem = this.chatViews[chat.Contact.ContactId.BareIdentifier];
}
}
}
)
);
}
/// <summary>
/// Creates the chat.
/// </summary>
/// <param name="contactId">The contact id.</param>
/// <returns></returns>
public XmppChat CreateChat(XmppJid contactId)
{
this.CheckSessionState();
XmppChat chat = null;
lock (this.syncObject)
{
if (!this.chats.ContainsKey(contactId.BareIdentifier))
{
chat = new XmppChat(this, this.Roster[contactId.BareIdentifier]);
this.chats.Add(contactId.BareIdentifier, chat);
chat.ChatClosed += new EventHandler(OnChatClosed);
}
else
{
chat = this.chats[contactId.BareIdentifier];
}
}
return chat;
}
/// <summary>
/// Opens a new chat view for the given chat instance
/// </summary>
/// <param name="chat">A <see cref="XmppChat"/> instance</param>
public void OpenChatView(XmppChat chat)
{
this.OpenChatView(chat, false);
}