private bool Execute(EncapsulateFieldCommandArgs args, IUIThreadOperationScope waitScope)
{
using var token = _listener.BeginAsyncOperation("EncapsulateField");
var cancellationToken = waitScope.Context.UserCancellationToken;
var document = args.SubjectBuffer.CurrentSnapshot.GetFullyLoadedOpenDocumentInCurrentContextWithChanges(
waitScope.Context, _threadingContext);
if (document == null)
{
return(false);
}
var spans = args.TextView.Selection.GetSnapshotSpansOnBuffer(args.SubjectBuffer);
var service = document.GetLanguageService <AbstractEncapsulateFieldService>();
var result = service.EncapsulateFieldAsync(document, spans.First().Span.ToTextSpan(), true, cancellationToken).WaitAndGetResult(cancellationToken);
// We are about to show a modal UI dialog so we should take over the command execution
// wait context. That means the command system won't attempt to show its own wait dialog
// and also will take it into consideration when measuring command handling duration.
waitScope.Context.TakeOwnership();
var workspace = document.Project.Solution.Workspace;
if (result == null)
{
var notificationService = workspace.Services.GetService <INotificationService>();
notificationService.SendNotification(EditorFeaturesResources.Please_select_the_definition_of_the_field_to_encapsulate, severity: NotificationSeverity.Error);
return(false);
}
waitScope.AllowCancellation = false;
cancellationToken = waitScope.Context.UserCancellationToken;
var finalSolution = result.GetSolutionAsync(cancellationToken).WaitAndGetResult(cancellationToken);
var previewService = workspace.Services.GetService <IPreviewDialogService>();
if (previewService != null)
{
finalSolution = previewService.PreviewChanges(
string.Format(EditorFeaturesResources.Preview_Changes_0, EditorFeaturesResources.Encapsulate_Field),
"vs.csharp.refactoring.preview",
EditorFeaturesResources.Encapsulate_Field_colon,
result.GetNameAsync(cancellationToken).WaitAndGetResult(cancellationToken),
result.GetGlyphAsync(cancellationToken).WaitAndGetResult(cancellationToken),
finalSolution,
document.Project.Solution);
}
if (finalSolution == null)
{
// User clicked cancel.
return(true);
}
using (var undoTransaction = _undoManager.GetTextBufferUndoManager(args.SubjectBuffer).TextBufferUndoHistory.CreateTransaction(EditorFeaturesResources.Encapsulate_Field))
{
if (!workspace.TryApplyChanges(finalSolution))
{
undoTransaction.Cancel();
return(false);
}
undoTransaction.Complete();
}
return(true);
}
public ProgressTrackerAdapter(IUIThreadOperationScope uiThreadOperationScope)
{
Requires.NotNull(uiThreadOperationScope, nameof(uiThreadOperationScope));
_uiThreadOperationScope = uiThreadOperationScope;
}
protected override void OnScopeProgressChanged(IUIThreadOperationScope changedScope) => UpdateProgress();
