public void RequestPreviousMessages(string messageId, RoomViewModel room)
{
_client.GetPreviousMessages(messageId)
.ContinueWith(_ =>
{
var messages = ProcessMessages(_.Result);
PostOnUi(() => room.AddPreviousMessages(messages));
});
}
public Task JoinRoom(RoomViewModel roomViewModel)
{
roomViewModel.JoinState = JoinState.Joining;
OnJoiningRoom(roomViewModel);
return _client.JoinRoom(roomViewModel.RoomName).ContinueWith(task =>
{
_client.GetRoomInfo(roomViewModel.RoomName).ContinueWith(details =>
{
Room roomInfo = details.Result;
RoomViewModel roomVm = GetRoom(roomInfo.Name);
PostOnUi(() => roomVm.OnJoined(roomInfo));
});
});
}
public void LeaveRoom(RoomViewModel roomViewModel)
{
_client.LeaveRoom(roomViewModel.RoomName).ContinueWith(
task => PostOnUi(() => roomViewModel.JoinState = JoinState.NotJoined),
TaskContinuationOptions.OnlyOnRanToCompletion);
}
private void OnJoiningRoom(RoomViewModel room)
{
EventHandler<JoiningRoomEventArgs> handler = JoiningRoom;
if (handler != null)
PostOnUi(() => handler(this, new JoiningRoomEventArgs(room)));
}
private void InvokeIfInRoom(RoomViewModel room, Action<RoomViewModel> toInvoke)
{
if (room == null || room.JoinState != JoinState.Joined)
return;
toInvoke(room);
}
public JoiningRoomEventArgs(RoomViewModel room)
{
Room = room;
}