public void ShowChatWindow(ContactViewModel vm)
{
lock (typeof(ChatManager))
{
var window = Windows.FirstOrDefault(x => x.ContactViewModel.Contact == vm.Contact);
if (window == null)
{
window = new ChatWindow(vm) { Owner = App.Current.MainWindow };
window.Closed += window_Closed;
window.Show();
_windows.Add(window);
window.Activate();
}
else
{
window.Activate();
}
}
}
public void CheckNewContact(string username, string address)
{
lock (_lockObject)
{
var contact = FindContactViewModel(username, address);
if (contact == null)
{
contact = new ContactViewModel(
new Contact
{
Address = address,
Username = username
})
{
LastAction = DateTime.Now
};
ContactViewModels.Add(contact);
}
else
contact.LastAction = DateTime.Now;
}
}
public ChatWindow(ContactViewModel contact)
{
InitializeComponent();
ContactViewModel = contact;
DataContext = contact;
}
public SendNewMessageCommand(ContactViewModel contactVM)
{
_contactViewModel = contactVM;
_contactViewModel.PropertyChanged += ContactViewModel_PropertyChanged;
}
public ShowChatCommand(ContactViewModel contact)
{
Contact = contact;
}
