ChatterBox.Client.Presentation.Shared.ViewModels.ConversationViewModel.ConversationViewModel C# (CSharp) Method

        public ConversationViewModel(IClientChannel clientChannel,
                                     IForegroundUpdateService foregroundUpdateService,
                                     IVoipChannel voipChannel)
        {
            _clientChannel = clientChannel;
            _voipChannel = voipChannel;
            _foregroundUpdateService = foregroundUpdateService;
            foregroundUpdateService.OnRelayMessagesUpdated += OnRelayMessagesUpdated;
            foregroundUpdateService.OnVoipStateUpdate += OnVoipStateUpdate;
            foregroundUpdateService.OnFrameFormatUpdate += OnFrameFormatUpdate;
            foregroundUpdateService.OnFrameRateUpdate += OnFrameRateUpdate;
            SendInstantMessageCommand = new DelegateCommand(OnSendInstantMessageCommandExecute,
                OnSendInstantMessageCommandCanExecute);
            AudioCallCommand = new DelegateCommand(OnCallCommandExecute, OnCallCommandCanExecute);
            VideoCallCommand = new DelegateCommand(OnVideoCallCommandExecute, OnVideoCallCommandCanExecute);
            HangupCommand = new DelegateCommand(OnHangupCommandExecute, OnHangupCommandCanExecute);
            AnswerCommand = new DelegateCommand(OnAnswerCommandExecute, OnAnswerCommandCanExecute);
            RejectCommand = new DelegateCommand(OnRejectCommandExecute, OnRejectCommandCanExecute);
            CloseConversationCommand = new DelegateCommand(OnCloseConversationCommandExecute, () => _canCloseConversation);
            MuteMicrophoneCommand = new DelegateCommand(MuteMicCommandExecute, MicCommandCanExecute);
            UnMuteMicrophoneCommand = new DelegateCommand(UnMuteCommandExecute, MicCommandCanExecute);
            SwitchVideoCommand = new DelegateCommand(SwitchVideoCommandExecute, SwitchVideoCommandCanExecute);
            LayoutService.Instance.LayoutChanged += LayoutChanged;
            LayoutChanged(LayoutService.Instance.LayoutType);
            SetVideoPresenters();
        }