/// <summary>
/// Is the current selection that of the C# event add pattern?
/// </summary>
internal bool IsEventAddSelection(ITextView textView)
{
var textSelection = textView.Selection;
if (textSelection.IsEmpty || textSelection.Mode != TextSelectionMode.Stream)
{
return(false);
}
var span = textView.Selection.StreamSelectionSpan.SnapshotSpan;
var lineRange = SnapshotLineRangeUtil.CreateForSpan(span);
if (lineRange.Count != 1)
{
return(false);
}
// Include the character after the selection. Needed to disambiguate a couple
// of cases
var endPoint = span.End;
if (endPoint.Position < lineRange.End.Position)
{
endPoint = endPoint.Add(1);
}
var beforeSpan = new SnapshotSpan(lineRange.Start, endPoint);
return(IsPreceededByEventAddSyntax(beforeSpan));
}
private AsyncBackgroundRequest CreateAsyncBackgroundRequest(
SnapshotSpan span,
CancellationTokenSource cancellationTokenSource,
Task task = null)
{
task = task ?? new Task(() => { });
return(new AsyncBackgroundRequest(
SnapshotLineRangeUtil.CreateForSpan(span),
cancellationTokenSource,
new SingleItemQueue <SnapshotLineRange>(),
task));
}
private ReadOnlyCollection <ITagSpan <IClassificationTag> > GetTags(SnapshotSpan span)
{
var lineSpan = SnapshotLineRangeUtil.CreateForSpan(span);
var snapshot = span.Snapshot;
var list = new List <ITagSpan <IClassificationTag> >();
foreach (var line in lineSpan.Lines)
{
if (DirectoryUtil.TryGetDirectorySpan(line, out SnapshotSpan directorySpan))
{
list.Add(new TagSpan <IClassificationTag>(directorySpan, _classificationTag));
}
}
return(list.ToReadOnlyCollectionShallow());
}
/// <summary>
/// Is the current selection that of the C# event add pattern?
/// </summary>
internal bool IsEventAddSelection(ITextView textView)
{
var textSelection = textView.Selection;
if (textSelection.IsEmpty || textSelection.Mode != TextSelectionMode.Stream)
{
return(false);
}
var span = textView.Selection.StreamSelectionSpan.SnapshotSpan;
var lineRange = SnapshotLineRangeUtil.CreateForSpan(span);
if (lineRange.Count != 1)
{
return(false);
}
var beforeSpan = new SnapshotSpan(lineRange.Start, span.End);
return(IsPreceededByEventAddSyntax(beforeSpan));
}
public static Result <SnapshotLineRange> GetVisibleLineRange(this ITextView textView)
{
try
{
var lines = textView.TextViewLines;
if (lines.Count == 0)
{
return(Result.Error);
}
var start = lines[0].Start;
var end = lines[lines.Count - 1].EndIncludingLineBreak;
var span = new SnapshotSpan(start, end);
return(SnapshotLineRangeUtil.CreateForSpan(span));
}
catch (Exception ex)
{
// TextViewLines can throw when the view is being laid out
return(Result.CreateError(ex));
}
}