public async void OnElementChanged(SMDisplayedElementChangedEventArgs e)
{
var element = e.NewElement;
if (element.IsNull())
{
return;
}
if (element.Type != ElementType.Item)
{
Application.Current.Dispatcher.Invoke(() =>
{
CurrentWdw?.Close();
});
return;
}
try
{
// Cancel search early on element changed event
var cts = new RemoteCancellationTokenSource();
Svc.SM.UI.ElementWdw.OnElementChanged += new ActionProxy <SMDisplayedElementChangedEventArgs>((args) => cts?.Cancel());
List <string> searchTerms = GetSearchTerms();
await SearchForCards(searchTerms, cts.Token);
}
catch (RemotingException) { }
}
private void UpdateCardWdw(List <Card> cards)
{
Application.Current.Dispatcher.BeginInvoke((Action)(() =>
{
CurrentWdw.ClearDataGrid();
CurrentWdw.AddCards(cards);
}));
}
private async Task SearchForCards(List <string> words, RemoteCancellationToken ct)
{
if (words.IsNull() || !words.Any())
{
return;
}
var results = new Dictionary <string, int>();
try
{
foreach (var word in words)
{
if (word.IsNullOrEmpty() || ct.IsNull())
{
return;
}
if (CardIndex.IsNull())
{
return;
}
await foreach (Result res in CardIndex.Search(word, ct.Token()))
{
string id = res.DocumentReference;
if (results.ContainsKey(id))
{
results[id]++;
}
else
{
results[id] = 1;
}
}
}
}
catch (TaskCanceledException) { }
if (results.IsNull() || !results.Any())
{
return;
}
var ordered = results
.OrderByDescending(x => x.Value)
.Take(Config.MaxSearchResults);
var cards = new List <Card>();
foreach (var pair in ordered)
{
cards.Add(Cards[pair.Key]);
}
if (CurrentWdw.IsNull() || CurrentWdw.IsClosed)
{
OpenCardWdw(cards);
}
else
{
UpdateCardWdw(cards);
}
}
