public void ExecuteCommand(PasteCommandArgs args, Action nextHandler)
{
_waitIndicator.Wait(
title: EditorFeaturesResources.Format_Paste,
message: EditorFeaturesResources.Formatting_pasted_text,
allowCancel: true,
action: c => ExecuteCommandWorker(args, nextHandler, c.CancellationToken));
}
private void ExecuteCommandWorker(PasteCommandArgs args, Action nextHandler, CancellationToken cancellationToken)
{
var caretPosition = args.TextView.GetCaretPoint(args.SubjectBuffer);
nextHandler();
if (!args.SubjectBuffer.CanApplyChangeDocumentToWorkspace())
{
return;
}
if (!args.SubjectBuffer.GetOption(FeatureOnOffOptions.FormatOnPaste) ||
!caretPosition.HasValue)
{
return;
}
var trackingSpan = caretPosition.Value.Snapshot.CreateTrackingSpan(caretPosition.Value.Position, 0, SpanTrackingMode.EdgeInclusive);
var document = args.SubjectBuffer.CurrentSnapshot.GetOpenDocumentInCurrentContextWithChanges();
if (document == null)
{
return;
}
var formattingRuleService = document.Project.Solution.Workspace.Services.GetService<IHostDependentFormattingRuleFactoryService>();
if (formattingRuleService != null && formattingRuleService.ShouldNotFormatOrCommitOnPaste(document))
{
return;
}
var formattingService = document.GetLanguageService<IEditorFormattingService>();
if (formattingService == null || !formattingService.SupportsFormatOnPaste)
{
return;
}
var span = trackingSpan.GetSpan(args.SubjectBuffer.CurrentSnapshot).Span.ToTextSpan();
var changes = formattingService.GetFormattingChangesOnPasteAsync(document, span, cancellationToken).WaitAndGetResult(cancellationToken);
if (changes.Count == 0)
{
return;
}
document.Project.Solution.Workspace.ApplyTextChanges(document.Id, changes, cancellationToken);
}
public CommandState GetCommandState(PasteCommandArgs args, Func<CommandState> nextHandler)
{
return nextHandler();
}
protected static async Task AssertFormatWithPasteOrReturnAsync(string expectedWithMarker, string codeWithMarker, bool allowDocumentChanges, bool isPaste = true)
{
using (var workspace = await CSharpWorkspaceFactory.CreateWorkspaceFromLinesAsync(codeWithMarker))
{
workspace.CanApplyChangeDocument = allowDocumentChanges;
// set up caret position
var testDocument = workspace.Documents.Single();
var view = testDocument.GetTextView();
view.Caret.MoveTo(new SnapshotPoint(view.TextSnapshot, testDocument.CursorPosition.Value));
// get original buffer
var buffer = workspace.Documents.First().GetTextBuffer();
var optionService = workspace.Services.GetService<IOptionService>();
if (isPaste)
{
optionService.SetOptions(optionService.GetOptions().WithChangedOption(FeatureOnOffOptions.FormatOnPaste, LanguageNames.CSharp, true));
var commandHandler = new FormatCommandHandler(TestWaitIndicator.Default, null, null);
var commandArgs = new PasteCommandArgs(view, view.TextBuffer);
commandHandler.ExecuteCommand(commandArgs, () => { });
}
else
{
// Return Key Command
var textUndoHistory = new Mock<ITextUndoHistoryRegistry>();
var editorOperationsFactory = new Mock<IEditorOperationsFactoryService>();
var editorOperations = new Mock<IEditorOperations>();
editorOperationsFactory.Setup(x => x.GetEditorOperations(testDocument.GetTextView())).Returns(editorOperations.Object);
var commandHandler = new FormatCommandHandler(TestWaitIndicator.Default, textUndoHistory.Object, editorOperationsFactory.Object);
var commandArgs = new ReturnKeyCommandArgs(view, view.TextBuffer);
commandHandler.ExecuteCommand(commandArgs, () => { });
}
string expected;
int expectedPosition;
MarkupTestFile.GetPosition(expectedWithMarker, out expected, out expectedPosition);
Assert.Equal(expected, view.TextSnapshot.GetText());
var caretPosition = view.Caret.Position.BufferPosition.Position;
Assert.True(expectedPosition == caretPosition,
string.Format("Caret positioned incorrectly. Should have been {0}, but was {1}.", expectedPosition, caretPosition));
}
}