string ISendToInteractiveSubmissionProvider.GetSelectedText(IEditorOptions editorOptions, EditorCommandArgs args, CancellationToken cancellationToken)
{
var selectedSpans = args.TextView.Selection.IsEmpty
? GetExpandedLine(editorOptions, args, cancellationToken)
: args.TextView.Selection.GetSnapshotSpansOnBuffer(args.SubjectBuffer).Where(ss => ss.Length > 0);
return(GetSubmissionFromSelectedSpans(editorOptions, selectedSpans));
}
private void CommitIfActiveAndCallNextHandler(EditorCommandArgs args, Action nextHandler)
{
CommitIfActive(args);
nextHandler();
}
protected static bool AreSnippetsEnabled(EditorCommandArgs args)
{
return(args.SubjectBuffer.GetFeatureOnOffOption(InternalFeatureOnOffOptions.Snippets) &&
// TODO (https://github.com/dotnet/roslyn/issues/5107): enable in interactive
!(Workspace.TryGetWorkspace(args.SubjectBuffer.AsTextContainer(), out var workspace) && workspace.Kind == WorkspaceKind.Interactive));
}
private bool TryGetController(EditorCommandArgs args, out Controller controller)
{
return(_completionService.TryGetController(args.TextView, args.SubjectBuffer, out controller));
}
public void ExecuteReturnOrTypeCommand(EditorCommandArgs args, Action nextHandler, CancellationToken cancellationToken)
{
// run next handler first so that editor has chance to put the return into the buffer first.
nextHandler();
var textView = args.TextView;
var subjectBuffer = args.SubjectBuffer;
if (!CanExecuteCommand(subjectBuffer))
{
return;
}
var caretPosition = textView.GetCaretPoint(args.SubjectBuffer);
if (!caretPosition.HasValue)
{
return;
}
var document = subjectBuffer.CurrentSnapshot.GetOpenDocumentInCurrentContextWithChanges();
if (document == null)
{
return;
}
var service = document.GetLanguageService <IEditorFormattingService>();
if (service == null)
{
return;
}
IList <TextChange>?textChanges;
// save current caret position
if (args is ReturnKeyCommandArgs)
{
if (!service.SupportsFormatOnReturn)
{
return;
}
textChanges = service.GetFormattingChangesOnReturnAsync(document, caretPosition.Value, cancellationToken).WaitAndGetResult(cancellationToken);
}
else if (args is TypeCharCommandArgs typeCharArgs)
{
if (!service.SupportsFormattingOnTypedCharacter(document, typeCharArgs.TypedChar))
{
return;
}
textChanges = service.GetFormattingChangesAsync(document, typeCharArgs.TypedChar, caretPosition.Value, cancellationToken).WaitAndGetResult(cancellationToken);
}
else
{
throw ExceptionUtilities.UnexpectedValue(args);
}
if (textChanges == null || textChanges.Count == 0)
{
return;
}
using (var transaction = CreateEditTransaction(textView, EditorFeaturesResources.Automatic_Formatting))
{
transaction.MergePolicy = AutomaticCodeChangeMergePolicy.Instance;
document.Project.Solution.Workspace.ApplyTextChanges(document.Id, textChanges, cancellationToken);
transaction.Complete();
}
// get new caret position after formatting
var newCaretPositionMarker = args.TextView.GetCaretPoint(args.SubjectBuffer);
if (!newCaretPositionMarker.HasValue)
{
return;
}
var snapshotAfterFormatting = args.SubjectBuffer.CurrentSnapshot;
var oldCaretPosition = caretPosition.Value.TranslateTo(snapshotAfterFormatting, PointTrackingMode.Negative);
var newCaretPosition = newCaretPositionMarker.Value.TranslateTo(snapshotAfterFormatting, PointTrackingMode.Negative);
if (oldCaretPosition.Position == newCaretPosition.Position)
{
return;
}
// caret has moved to wrong position, move it back to correct position
args.TextView.TryMoveCaretToAndEnsureVisible(oldCaretPosition);
}
public EditorCommandHandlerServiceState(EditorCommandArgs executingCommand, bool isTypingCommand)
{
_executingCommandHandlers = new ConcurrentStack <ICommandHandler>();
ExecutingCommand = executingCommand ?? throw new ArgumentNullException(nameof(executingCommand));
IsExecutingTypingCommand = isTypingCommand;
}
private string GetSelectedText(EditorCommandArgs args, CancellationToken cancellationToken)
{
var editorOptions = _editorOptionsFactoryService.GetOptions(args.SubjectBuffer);
return(SendToInteractiveSubmissionProvider.GetSelectedText(editorOptions, args, cancellationToken));
}
public void ExecuteReturnOrTypeCommand(EditorCommandArgs args, Action nextHandler, CancellationToken cancellationToken)
{
// This method handles only return / type char
if (!(args is ReturnKeyCommandArgs || args is TypeCharCommandArgs))
{
return;
}
// run next handler first so that editor has chance to put the return into the buffer first.
nextHandler();
var textView = args.TextView;
var subjectBuffer = args.SubjectBuffer;
if (!subjectBuffer.CanApplyChangeDocumentToWorkspace())
{
return;
}
var caretPosition = textView.GetCaretPoint(args.SubjectBuffer);
if (!caretPosition.HasValue)
{
return;
}
var document = subjectBuffer.CurrentSnapshot.GetOpenDocumentInCurrentContextWithChanges();
if (document == null)
{
return;
}
var service = document.GetLanguageService <IEditorFormattingService>();
if (service == null)
{
return;
}
// save current caret position
var caretPositionMarker = new SnapshotPoint(args.SubjectBuffer.CurrentSnapshot, caretPosition.Value);
if (args is ReturnKeyCommandArgs)
{
if (!service.SupportsFormatOnReturn ||
!TryFormat(textView, document, service, ' ', caretPositionMarker, formatOnReturn: true, cancellationToken: cancellationToken))
{
return;
}
}
else if (args is TypeCharCommandArgs typeCharArgs)
{
var typedChar = typeCharArgs.TypedChar;
if (!service.SupportsFormattingOnTypedCharacter(document, typedChar) ||
!TryFormat(textView, document, service, typedChar, caretPositionMarker, formatOnReturn: false, cancellationToken: cancellationToken))
{
return;
}
}
// get new caret position after formatting
var newCaretPositionMarker = args.TextView.GetCaretPoint(args.SubjectBuffer);
if (!newCaretPositionMarker.HasValue)
{
return;
}
var snapshotAfterFormatting = args.SubjectBuffer.CurrentSnapshot;
var oldCaretPosition = caretPositionMarker.TranslateTo(snapshotAfterFormatting, PointTrackingMode.Negative);
var newCaretPosition = newCaretPositionMarker.Value.TranslateTo(snapshotAfterFormatting, PointTrackingMode.Negative);
if (oldCaretPosition.Position == newCaretPosition.Position)
{
return;
}
// caret has moved to wrong position, move it back to correct position
args.TextView.TryMoveCaretToAndEnsureVisible(oldCaretPosition);
}
