1351_ownJournalScope = new JournalNavigationScope(this); 1377_ownJournalScope = null;

451Debug.Assert(_ownJournalScope != null); 463Debug.Assert(_ownJournalScope == null); 630Debug.Assert(sender == this && _ownJournalScope != null); 631e.CanExecute = _ownJournalScope.CanGoBack; 636Debug.Assert(sender == this && _ownJournalScope != null); 637_ownJournalScope.GoBack(); 643Debug.Assert(sender == this && _ownJournalScope != null); 644e.CanExecute = _ownJournalScope.CanGoForward; 649Debug.Assert(sender == this && _ownJournalScope != null); 650_ownJournalScope.GoForward(); 656Debug.Assert(sender == this && _ownJournalScope != null); 665if (_ownJournalScope.NavigateToEntry(je)) 675Debug.Assert(sender == this && _ownJournalScope != null); 680Debug.Assert(sender == this && _ownJournalScope != null); 687Debug.Assert(sender == this && _ownJournalScope != null); 688_ownJournalScope.StopLoading(); 794Invariant.Assert(_ownJournalScope != null ^ _journalOwnership != JournalOwnership.OwnsJournal); 796if (_ownJournalScope != null) 797return _ownJournalScope; 810return _ownJournalScope; 822bool canGoFwd = _ownJournalScope != null && _ownJournalScope.CanGoForward; 837bool canGoBack = _ownJournalScope != null && _ownJournalScope.CanGoBack; 862if (_ownJournalScope == null) 864return _ownJournalScope.RemoveBackEntry(); 936if (_ownJournalScope == null) 938_ownJournalScope.GoForward(); 950if(_ownJournalScope == null) 952_ownJournalScope.GoBack(); 996IEnumerable backStack = _ownJournalScope == null ? null : _ownJournalScope.BackStack; 1008IEnumerable fwdStack = _ownJournalScope == null ? null : _ownJournalScope.ForwardStack; 1171Debug.Assert(GetValue(BackStackProperty) == _ownJournalScope.BackStack); 1243if (_ownJournalScope != null) 1248state.Journal = _ownJournalScope.Journal; 1268_ownJournalScope.Journal = state.Journal; 1289if (_ownJournalScope != null) 1294_ownJournalScope.EnsureJournal(); 1341Debug.Assert(_ownJournalScope == null ^ _journalOwnership == JournalOwnership.OwnsJournal); 1342if (_ownJournalScope == null) 1359_ownJournalScope.EnsureJournal(); 1374Debug.Assert(_ownJournalScope == null ^ _journalOwnership == JournalOwnership.OwnsJournal); 1375if (_ownJournalScope != null)