public override bool CanExecute(object parameter)
{
IAppController controller = ServiceRegistration.Get <IAppController>(false);
Window mainWindow = Application.Current.MainWindow;
if (mainWindow == null)
{
return(false);
}
Visibility visibility = mainWindow.Visibility;
switch ((string)parameter)
{
case "DoubleClick": // DoubleClick of TrayIcon
return(true);
case "Open": // Open Main Window
return(visibility != Visibility.Visible);
case "Hide": // Close Main Window
return(visibility == Visibility.Visible);
case "Quit": // Quit Main Application
return(true);
case "Minimize": // Minimize to Tray
return(visibility == Visibility.Visible);
case "StartService": // Start the MP2-Server as Service
return((controller != null) && (controller.IsServerServiceInstalled()) && (!controller.IsServerServiceRunning()));
case "StopService": // Stop the MP2-Server Service
return((controller != null) && (controller.IsServerServiceInstalled()) && (controller.IsServerServiceRunning()));
case "EnableAutoStart":
return((controller != null) && (!controller.IsAutoStartEnabled));
case "DisableAutoStart":
return((controller != null) && (controller.IsAutoStartEnabled));
default:
var msg = String.Format("ApplicationCommand fired with missing or invalid parameter: {0}", parameter);
throw new InvalidOperationException(msg);
}
}