internal QuickInfoController(ITextView textView, IList <ITextBuffer> subjectBuffers, QuickInfoControllerProvider provider)
        {
            _textView       = textView;
            _subjectBuffers = subjectBuffers;
            _provider       = provider;

            _textView.MouseHover += this.OnTextViewMouseHover;
        }
        internal QuickInfoController(ITextView textView, IList<ITextBuffer> subjectBuffers, QuickInfoControllerProvider provider)
        {
            _textView = textView;
            _subjectBuffers = subjectBuffers;
            _provider = provider;

            _textView.MouseHover += this.OnTextViewMouseHover;
        }