protected BqlFormatterTests(BqlFormatter formatter)
{
_formatter = formatter;
}
private async System.Threading.Tasks.Task CommandCallbackAsync()
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
IWpfTextView textView = await ServiceProvider.GetWpfTextViewAsync();
if (textView == null)
{
return;
}
SnapshotPoint caretPosition = textView.Caret.Position.BufferPosition;
ITextSnapshotLine caretLine = caretPosition.GetContainingLine();
if (caretLine == null)
{
return;
}
Document document = caretPosition.Snapshot.GetOpenDocumentInCurrentContextWithChanges();
if (document == null)
{
return;
}
await TaskScheduler.Default; //Go to background thread
SyntaxNode syntaxRoot = await document.GetSyntaxRootAsync();
SemanticModel semanticModel = await document.GetSemanticModelAsync();
if (syntaxRoot == null || semanticModel == null)
{
return;
}
//TextSpan lineSpan = TextSpan.FromBounds(caretLine.Start.Position, caretLine.End.Position);
//var memberNode = syntaxRoot.FindNode(lineSpan) as MemberDeclarationSyntax;
// if (memberNode == null)
// return;
SyntaxNode fixedRoot;
#region todo
if (textView.Selection.IsActive && !textView.Selection.IsEmpty) // if has selection
{
// todo: check selection
//// Find all nodes within the span and format them
//var selectionSpan = TextSpan.FromBounds(textView.Selection.Start.Position, textView.Selection.End.Position);
//SyntaxNode topNode = syntaxRoot.FindNode(selectionSpan); // can, return top node that intersects with selectionSpan, so we need SpanWalker here
//if (topNode == null)
// return; // nothing to format (e.g. selection contains only trivia)
//var spanWalker = new SpanWalker(selectionSpan);
//spanWalker.Visit(topNode);
//if (spanWalker.NodesWithinSpan.Count == 0)
// return;
//fixedRoot = syntaxRoot.ReplaceNodes(spanWalker.NodesWithinSpan, (o, r) => formatter.Format(o, semanticModel));
}
else
{
}
#endregion
fixedRoot = new AngleBracesBqlRewriter(semanticModel).Visit(syntaxRoot);
var newDocument = document.WithSyntaxRoot(fixedRoot);
SyntaxNode newSyntaxRoot = await newDocument.GetSyntaxRootAsync();
SemanticModel newSemanticModel = await newDocument.GetSemanticModelAsync();
if (newSyntaxRoot == null || newSemanticModel == null)
{
return;
}
// have to format, because cannot save all original indention
BqlFormatter formatter = BqlFormatter.FromTextView(textView);
var formatedRoot = formatter.Format(newSyntaxRoot, newSemanticModel);
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync(); // Return to UI thread
if (!textView.TextBuffer.EditInProgress)
{
var formattedDocument = document.WithSyntaxRoot(formatedRoot);
ApplyChanges(document, formattedDocument);
}
}
