async Task GetDescriptionAsync(RoslynCompletionSet completionSet, RoslynCompletion completion, CancellationToken cancellationToken)
{
var description = await completionSet.GetDescriptionAsync(completion, cancellationToken);
if (description is null || description.TaggedParts.IsDefault || description.TaggedParts.Length == 0)
{
InitializeDefaultDocumentation();
}
/// <summary>
/// Gets the description or null if none
/// </summary>
/// <param name="completion">Completion</param>
/// <param name="cancellationToken">Cancellation token</param>
/// <returns></returns>
public Task <CompletionDescription> GetDescriptionAsync(RoslynCompletion completion, CancellationToken cancellationToken = default)
{
if (completion == null)
{
throw new ArgumentNullException(nameof(completion));
}
var info = CompletionInfo.Create(textView.TextSnapshot);
if (info == null)
{
return(Task.FromResult <CompletionDescription>(null));
}
return(completionService.GetDescriptionAsync(info.Value.Document, completion.CompletionItem, cancellationToken));
}
public void Commit(RoslynCompletion completion)
{
if (completion == null)
{
throw new ArgumentNullException(nameof(completion));
}
mruCompletionService.AddText(completion.DisplayText);
var info = CompletionInfo.Create(ApplicableTo.TextBuffer.CurrentSnapshot);
Debug.Assert(info != null);
if (info == null)
{
return;
}
var change = completionService.GetChangeAsync(info.Value.Document, completion.CompletionItem, commitCharacter: null).GetAwaiter().GetResult();
var buffer = ApplicableTo.TextBuffer;
var currentSnapshot = buffer.CurrentSnapshot;
using (var ed = buffer.CreateEdit()) {
var textChange = change.TextChange;
Debug.Assert(textChange.Span.End <= originalSnapshot.Length);
if (textChange.Span.End > originalSnapshot.Length)
{
return;
}
var span = new SnapshotSpan(originalSnapshot, textChange.Span.ToSpan()).TranslateTo(currentSnapshot, SpanTrackingMode.EdgeInclusive);
if (!ed.Replace(span.Span, textChange.NewText))
{
return;
}
ed.Apply();
}
if (change.NewPosition != null)
{
var snapshot = buffer.CurrentSnapshot;
Debug.Assert(change.NewPosition.Value <= snapshot.Length);
if (change.NewPosition.Value <= snapshot.Length)
{
textView.Caret.MoveTo(new SnapshotPoint(snapshot, change.NewPosition.Value));
textView.Caret.EnsureVisible();
}
}
}
public AsyncToolTipContent(CompletionToolTipProvider owner, RoslynCompletionSet completionSet, RoslynCompletion completion, ICompletionSession session, ITaggedTextElementProviderService taggedTextElementProviderService, bool colorize)
{
this.owner = owner;
Session = session;
cancellationTokenSource = new CancellationTokenSource();
this.taggedTextElementProviderService = taggedTextElementProviderService;
this.colorize = colorize;
Session.Dismissed += Session_Dismissed;
Unloaded += AsyncToolTipContent_Unloaded;
GetDescriptionAsync(completionSet, completion, cancellationTokenSource.Token)
.ContinueWith(t => {
var ex = t.Exception;
Dispose();
}, CancellationToken.None, TaskContinuationOptions.None, TaskScheduler.FromCurrentSynchronizationContext());
}
