public void ExecuteCommand(FormatSelectionCommandArgs args, Action nextHandler)
{
if (!TryExecuteCommand(args))
{
nextHandler();
}
}
private bool TryExecuteCommand(FormatSelectionCommandArgs args)
{
if (!args.SubjectBuffer.CanApplyChangeDocumentToWorkspace())
{
return false;
}
var document = args.SubjectBuffer.CurrentSnapshot.GetOpenDocumentInCurrentContextWithChanges();
if (document == null)
{
return false;
}
var formattingService = document.GetLanguageService<IEditorFormattingService>();
if (formattingService == null || !formattingService.SupportsFormatSelection)
{
return false;
}
var result = false;
_waitIndicator.Wait(
title: EditorFeaturesResources.Format_Selection,
message: EditorFeaturesResources.Formatting_currently_selected_text,
allowCancel: true,
action: waitContext =>
{
var buffer = args.SubjectBuffer;
// we only support single selection for now
var selection = args.TextView.Selection.GetSnapshotSpansOnBuffer(buffer);
if (selection.Count != 1)
{
return;
}
var formattingSpan = selection[0].Span.ToTextSpan();
Format(args.TextView, document, formattingSpan, waitContext.CancellationToken);
// make behavior same as dev12.
// make sure we set selection back and set caret position at the end of selection
// we can delete this code once razor side fixes a bug where it depends on this behavior (dev12) on formatting.
var currentSelection = selection[0].TranslateTo(args.SubjectBuffer.CurrentSnapshot, SpanTrackingMode.EdgeExclusive);
args.TextView.SetSelection(currentSelection);
args.TextView.TryMoveCaretToAndEnsureVisible(currentSelection.End, ensureSpanVisibleOptions: EnsureSpanVisibleOptions.MinimumScroll);
// We don't call nextHandler, since we have handled this command.
result = true;
});
return result;
}
public CommandState GetCommandState(FormatSelectionCommandArgs args, Func<CommandState> nextHandler)
{
return GetCommandState(args.SubjectBuffer, nextHandler);
}