ARCed.UI.DockPanel.FocusManagerImpl.RemoveFromActiveList C# (CSharp) Method

            private void RemoveFromActiveList(IDockContent content)
            {
                if (this.LastActiveContent == content)
                    this.LastActiveContent = content.DockHandler.PreviousActive;

                IDockContent prev = content.DockHandler.PreviousActive;
                IDockContent next = content.DockHandler.NextActive;
                if (prev != null)
                    prev.DockHandler.NextActive = next;
                if (next != null)
                    next.DockHandler.PreviousActive = prev;

                content.DockHandler.PreviousActive = null;
                content.DockHandler.NextActive = null;
            }