/// <summary>
/// Trigger completion.
/// </summary>
private void TriggerCompletion()
{
// the caret must be in a non-projection location
var caretPoint = textView.Caret.Position.Point.GetPoint(textBuffer => (!textBuffer.ContentType.IsOfType("projection")), PositionAffinity.Predecessor);
if (!caretPoint.HasValue)
{
return;
}
var cp = (SnapshotPoint)caretPoint;
var position = cp.Position;
// check for "//" before the current cursor position in this line
var line = ((SnapshotPoint)caretPoint).Snapshot.GetLineFromPosition(((SnapshotPoint)caretPoint).Position);
// get the text of this line
var text = line.GetText();
// get only the text portion which is left of the actual position
text = text.Substring(0, position - line.Start.Position);
// if there is a comment starting, don't do auto completion
if (text.IndexOf("//", StringComparison.CurrentCultureIgnoreCase) != -1)
{
return;
}
var lex = new Lexer(cp.Snapshot.GetText());
lex.AnalyzeForCommentsOnly();
var res = lex.Tokens.FirstOrDefault(x => x.Position < cp.Position && x.Position + x.Length >= cp.Position);
if (res != null)
{
return;
}
session = provider.CompletionBroker.CreateCompletionSession(textView, caretPoint.Value.Snapshot.CreateTrackingPoint(caretPoint.Value.Position, PointTrackingMode.Positive), true);
// subscribe to the Dismissed event on the session
session.Dismissed += OnSessionDismissed;
session.Start();
}