public LookupChoice Pick(LookupContext lookup)
{
Console.WriteLine("Searched for " + lookup.Query);
PrintResults(lookup.Results);
string prompt = (lookup.Results.Count == 0) ? "No results found." : "\nPick result number,";
Console.WriteLine(prompt + " (s)kip or (r)etry");
string action = Console.In.ReadLine().Trim();
switch (action)
{
case "r":
return RetrySearch();
case "s":
return new LookupChoice(LookupChoice.Action.GiveUp);
default:
try
{
var selected = lookup.Results[Int32.Parse(action)];
return new LookupChoice(selected.ImdbId);
}
catch
{
Console.WriteLine("Invalid option: s,r, or a number");
return Pick(lookup);
}
}
}
public SearchResultPickerViewModel(LookupContext lookup)
{
LookupResultList = lookup.Results;
//RaisePropertyChanged("LookupResultList");
ErrorMessage = lookup.FailureMessage();
SearchFailed = !String.IsNullOrEmpty(ErrorMessage);
if(SearchFailed)
{
SearchText = lookup.Query;
}
QueryTitle = lookup.Query;
SearchCommand = new RelayCommand(RetrySearch);
PickSelectedCommand = new RelayCommand(PickSelected);
SelectedItem = LookupResultList.FirstOrDefault();
}
private LookupChoice LookupCalllback(LookupContext lookup)
{
return resultPicker.Pick(lookup);
}
public LookupChoice Pick(LookupContext lookup)
{
LookupResult pick = lookup.Results.FirstOrDefault();
return (pick != null) ? new LookupChoice(pick) : new LookupChoice(LookupChoice.Action.GiveUp);
}
private async Task<LookupChoice> EnqueuePick(LookupContext lookup)
{
Task<LookupChoice> task = new Task<LookupChoice>(()=> ShowPicker(lookup),CancellationToken.None, TaskCreationOptions.AttachedToParent);
queue.Enqueue(task);
//If task is the only item in queue we need to run it immediately
TryDequeueNextPick();
var choice = await task;
//After dialog closes, continue by attempting to open next picker
TryDequeueNextPick();
return choice;
}
private LookupChoice ShowPicker(LookupContext lookup)
{
SearchResultPicker picker = new SearchResultPicker();
picker.DataContext = new SearchResultPickerViewModel(lookup);
picker.Owner = parentWindow;
picker.ShowDialog();
isPickerVisible = false;
if(picker.DialogResult==true)
{
return ((SearchResultPickerViewModel)picker.DataContext).LookupChoice;
}
else
{
return new LookupChoice(LookupChoice.Action.GiveUp);
}
}
public LookupChoice Pick(LookupContext lookup)
{
if(uiThread == Thread.CurrentThread)
{
throw new ThreadStateException("Pick should be called from another thread");
}
var guiTask = EnqueuePick(lookup);
guiTask.Wait();
return guiTask.Result;
}
