private CommentSelectionResult ToggleLineComment(CommentSelectionInfo commentInfo,
NormalizedSnapshotSpanCollection selectedSpans)
{
var textChanges = ArrayBuilder <TextChange> .GetInstance();
var trackingSpans = ArrayBuilder <CommentTrackingSpan> .GetInstance();
var linesInSelections = selectedSpans.ToDictionary(
span => span,
span => GetLinesFromSelectedSpan(span).ToImmutableArray());
Operation operation;
// If any of the lines are uncommented, add comments.
if (linesInSelections.Values.Any(lines => SelectionHasUncommentedLines(lines, commentInfo)))
{
foreach (var selection in linesInSelections)
{
CommentLines(selection.Key, selection.Value, textChanges, trackingSpans, commentInfo);
}
operation = Operation.Comment;
}
else
{
foreach (var selection in linesInSelections)
{
UncommentLines(selection.Value, textChanges, trackingSpans, commentInfo);
}
operation = Operation.Uncomment;
}
return(new CommentSelectionResult(textChanges, trackingSpans, operation));
}