private bool TryTriggerExpansion()
{
if (_expansionMgr != null)
{
var snapshot = _textView.TextBuffer.CurrentSnapshot;
var span = new SnapshotSpan(snapshot, new Span(_textView.Caret.Position.BufferPosition.Position - 1, 1));
var classification = _textView.TextBuffer.GetNodejsClassifier().GetClassificationSpans(span);
if (classification.Count == 1)
{
var clsSpan = classification.First().Span;
var text = classification.First().Span.GetText();
TextSpan[] textSpan = new TextSpan[1];
textSpan[0].iStartLine = clsSpan.Start.GetContainingLine().LineNumber;
textSpan[0].iStartIndex = clsSpan.Start.Position - clsSpan.Start.GetContainingLine().Start;
textSpan[0].iEndLine = clsSpan.End.GetContainingLine().LineNumber;
textSpan[0].iEndIndex = clsSpan.End.Position - clsSpan.End.GetContainingLine().Start;
string expansionPath, title;
int hr = _expansionMgr.GetExpansionByShortcut(
_expansionClient,
Guids.NodejsLanguageInfo,
text,
GetViewAdapter(),
textSpan,
1,
out expansionPath,
out title
);
if (ErrorHandler.Succeeded(hr))
{
// hr may be S_FALSE if there are multiple expansions,
// so we don't want to InsertNamedExpansion yet. VS will
// pop up a selection dialog in this case.
if (hr == VSConstants.S_OK)
{
return(ErrorHandler.Succeeded(_expansionClient.InsertNamedExpansion(title, expansionPath, textSpan[0])));
}
return(true);
}
}
}
return(false);
}
