public void AugmentPeekSession(IPeekSession session, IList <IPeekableItem> peekableItems) { var triggerPoint = session.GetTriggerPoint(_textBuffer.CurrentSnapshot); if (!triggerPoint.HasValue) { return; } string className = HtmlHelpers.GetSinglePropertyValue(_textBuffer, triggerPoint.Value.Position, "class"); if (string.IsNullOrEmpty(className)) { return; } peekableItems.Add(new ClassDefinitionPeekItem(className, _peekResultFactory, _textBuffer)); }