private async void View_NameChanged(object sender, NameEventArgs e)
{
// reset suggestions
View.Suggestions = new List <Suggestion>();
var value = e.Value?.Trim();
if (value == null)
{
return;
}
_loadingNamePrefix = value;
var suggestions = await Task.Run(() =>
{
var items = new List <Suggestion>();
// load suggestions
foreach (var name in _attributeCache.GetNames(value))
{
items.Add(new Suggestion(name, Strings.UserAttribute_Label, null));
}
return(items);
});
if (_isDisposed || _loadingNamePrefix != value)
{
return;
}
View.Suggestions = suggestions;
}
public IEnumerable <IQuerySuggestion> Compute(SuggestionState state)
{
var expected = state.Expected.Find(item =>
item.RuleIndices[0] == QueryParser.RULE_factor &&
item.Tokens.Contains(QueryLexer.ID));
// only suggest attribute names in an expression factor where an identifier is
// expected
if (expected == null)
{
return(Enumerable.Empty <IQuerySuggestion>());
}
var prefix = state.Caret.ParentPrefix ?? "";
return(_attributeCache
.GetNames(prefix)
.Select(name => new IdentifierSuggestion(state.Caret, name, CategoryName)));
}