public void Undo()
{
if (layer != null)
{
layer.Dispose();
}
layer = null;
if (tcs != null)
{
tcs.SetCanceled();
}
tcs = null;
}
void InsertWithCursorOnLayer(EditorScript currentScript, InsertionCursorLayer layer, TaskCompletionSource <Script> tcs, IList <AstNode> nodes, IDocument target)
{
var doc = target as TextDocument;
var op = new UndoOperation(layer, tcs);
if (doc != null)
{
doc.UndoStack.Push(op);
}
layer.ScrollToInsertionPoint();
layer.Exited += delegate(object s, InsertionCursorEventArgs args) {
doc.UndoStack.StartContinuedUndoGroup();
try {
if (args.Success)
{
if (args.InsertionPoint.LineAfter == NewLineInsertion.None &&
args.InsertionPoint.LineBefore == NewLineInsertion.None && nodes.Count > 1)
{
args.InsertionPoint.LineAfter = NewLineInsertion.BlankLine;
}
var insertionPoint = args.InsertionPoint;
if (nodes.All(n => n is EnumMemberDeclaration))
{
insertionPoint.LineAfter = NewLineInsertion.Eol;
insertionPoint.LineBefore = NewLineInsertion.None;
}
int offset = currentScript.GetCurrentOffset(insertionPoint.Location);
int indentLevel = currentScript.GetIndentLevelAt(Math.Max(0, offset - 1));
foreach (var node in nodes.Reverse())
{
var output = currentScript.OutputNode(indentLevel, node);
var text = output.Text;
if (node is EnumMemberDeclaration)
{
if (insertionPoint != layer.InsertionPoints.Last())
{
text += ",";
}
else
{
var parentEnum = currentScript.context.RootNode.GetNodeAt(insertionPoint.Location, n => (n is TypeDeclaration) && ((TypeDeclaration)n).ClassType == ClassType.Enum) as TypeDeclaration;
if (parentEnum != null)
{
var lastMember = parentEnum.Members.LastOrDefault();
if (lastMember != null)
{
var segment = currentScript.GetSegment(lastMember);
currentScript.InsertText(segment.EndOffset, ",");
}
}
}
}
int delta = insertionPoint.Insert(target, text);
output.RegisterTrackedSegments(currentScript, delta + offset);
}
currentScript.FormatText(nodes);
tcs.SetResult(currentScript);
}
layer.Dispose();
DisposeOnClose();
} finally {
doc.UndoStack.EndUndoGroup();
}
op.Reset();
};
}