private void UndoHiddenContainersOnOpenStack()
{
while (this.openStack.Count > 0)
{
IUndoUnitContainer undoUnitContainer = this.openStack.Pop();
undoUnitContainer.Undo();
undoUnitContainer.Dispose();
}
}
public void Cancel()
{
this.CheckNotClosed();
try
{
this.undoService.Cancel(this.container);
}
finally
{
this.container = (IUndoUnitContainer)null;
}
}
private IUndoUnitContainer FirstNonHiddenContainer(Stack <IUndoUnitContainer> stack)
{
IUndoUnitContainer undoUnitContainer1 = (IUndoUnitContainer)null;
foreach (IUndoUnitContainer undoUnitContainer2 in stack)
{
if (!undoUnitContainer2.IsHidden)
{
undoUnitContainer1 = undoUnitContainer2;
break;
}
}
return(undoUnitContainer1);
}
private void PopAndValidate(IUndoUnitContainer container)
{
if (this.openStackDepth == 0)
{
throw new InvalidOperationException(ExceptionStringTable.CannotEndWithoutOpenUndoContainer);
}
IUndoUnitContainer undoUnitContainer = this.openStack.Peek();
if (container != undoUnitContainer)
{
throw new InvalidOperationException(ExceptionStringTable.CannotEndUndoContainersOutOfOrder);
}
container.IsClosed = true;
this.openStack.Pop();
--this.openStackDepth;
}
private void End(IUndoUnitContainer container)
{
this.PopAndValidate(container);
if (container.IsEmpty)
{
return;
}
if (this.openStackDepth != 0)
{
this.openStack.Peek().Add((IUndoUnit)container);
}
else if (container.IsHidden)
{
if (this.openStack.Count > 0)
{
IUndoUnitContainer undoUnitContainer = this.openStack.Peek();
if (undoUnitContainer != this.cleanMarker)
{
undoUnitContainer.IsClosed = false;
undoUnitContainer.Add((IUndoUnit)container);
undoUnitContainer.IsClosed = true;
}
else
{
this.openStack.Push(container);
}
}
else
{
this.openStack.Push(container);
}
}
else
{
IUndoUnitContainer[] undoUnitContainerArray = this.openStack.ToArray();
for (int index = undoUnitContainerArray.Length - 1; index >= 0; --index)
{
this.undoStack.Push(undoUnitContainerArray[index]);
}
this.openStack.Clear();
this.undoStack.Push(container);
this.OnUndoStackChanged(new UndoStackChangedEventArgs(UndoStackChangeType.NodeAdded));
this.ClearRedoStack();
this.OnRedoStackChanged(new UndoStackChangedEventArgs(UndoStackChangeType.StackCleared));
}
}
public UndoTransaction(UndoService undoService, string description, bool isHidden)
{
this.undoService = undoService;
this.container = this.undoService.Begin(description, isHidden);
}
private void Cancel(IUndoUnitContainer container)
{
this.PopAndValidate(container);
container.Undo();
}