// Back to contacts page
private void Back()
{
_userManager.ChangeUserStatus(UserState.online);
_chatManager.UserDisconnected();
_navigationService.GoBack();
//_chatManager.NotifyViewModelbackNavigation
}
//Sand request to another user to chat with him.
private void Open(bool isChat)
{
if (ChosenContact != null)
{
if (ChosenContact.State == UserState.offline)
{
MessageBox.Show("User is offline.", "", MessageBoxButton.OK, MessageBoxImage.Error);
}
else if (ChosenContact.State == UserState.busy)
{
MessageBox.Show("User is not available.");
}
else
{
ClientUserManager.UserToChatWith = ChosenContact.UserName;
_userManager.ChangeUserStatus(UserState.busy);
_interactionManager.SendRequest(isChat);
}
}
else
{
MessageBox.Show("you need to choose user.");
}
}