private static ReactiveCommand FireCommands(
ICommandPublisher bus,
IEnumerable <Func <Command> > commands,
IObservable <bool> canExecute = null,
IScheduler scheduler = null,
string userErrorMsg = null,
TimeSpan?responseTimeout = null,
TimeSpan?ackTimeout = null)
{
if (scheduler == null)
{
scheduler = RxApp.MainThreadScheduler;
}
Func <object, Task> task = async _ => await Task.Run(() =>
{
foreach (var func in commands)
{
bus.Fire(func(), userErrorMsg, responseTimeout, ackTimeout);
}
});
var cmd = ReactiveCommand.CreateFromTask(task, canExecute, scheduler);
cmd.ThrownExceptions
.SelectMany(ex => UserError.Throw(userErrorMsg, ex))
.ObserveOn(MainThreadScheduler).Subscribe(result =>
{
//This will return the recovery option returned from the registered user error handler
//right now this is a simple message box in the view code behind
/* n.b. this forces evaluation/execution of the select many */
});
return(cmd);
}
