1323_ownJournalScope = new JournalNavigationScope(this); 1349_ownJournalScope = null;

437Debug.Assert(_ownJournalScope != null); 449Debug.Assert(_ownJournalScope == null); 613Debug.Assert(sender == this && _ownJournalScope != null); 614e.CanExecute = _ownJournalScope.CanGoBack; 619Debug.Assert(sender == this && _ownJournalScope != null); 620_ownJournalScope.GoBack(); 626Debug.Assert(sender == this && _ownJournalScope != null); 627e.CanExecute = _ownJournalScope.CanGoForward; 632Debug.Assert(sender == this && _ownJournalScope != null); 633_ownJournalScope.GoForward(); 639Debug.Assert(sender == this && _ownJournalScope != null); 648if (_ownJournalScope.NavigateToEntry(je)) 658Debug.Assert(sender == this && _ownJournalScope != null); 663Debug.Assert(sender == this && _ownJournalScope != null); 670Debug.Assert(sender == this && _ownJournalScope != null); 671_ownJournalScope.StopLoading(); 777Invariant.Assert(_ownJournalScope != null ^ _journalOwnership != JournalOwnership.OwnsJournal); 779if (_ownJournalScope != null) 780return _ownJournalScope; 793return _ownJournalScope; 805bool canGoFwd = _ownJournalScope != null && _ownJournalScope.CanGoForward; 820bool canGoBack = _ownJournalScope != null && _ownJournalScope.CanGoBack; 845if (_ownJournalScope == null) 847return _ownJournalScope.RemoveBackEntry(); 919if (_ownJournalScope == null) 921_ownJournalScope.GoForward(); 933if(_ownJournalScope == null) 935_ownJournalScope.GoBack(); 979IEnumerable backStack = _ownJournalScope?.BackStack; 991IEnumerable fwdStack = _ownJournalScope?.ForwardStack; 1154Debug.Assert(GetValue(BackStackProperty) == _ownJournalScope.BackStack); 1224if (_ownJournalScope != null) 1229state.Journal = _ownJournalScope.Journal; 1249_ownJournalScope.Journal = state.Journal; 1270_ownJournalScope?.EnsureJournal(); 1316Debug.Assert(_ownJournalScope == null ^ _journalOwnership == JournalOwnership.OwnsJournal); 1317if (_ownJournalScope == null) 1331_ownJournalScope.EnsureJournal(); 1346Debug.Assert(_ownJournalScope == null ^ _journalOwnership == JournalOwnership.OwnsJournal); 1347if (_ownJournalScope != null)