1324_ownJournalScope = new JournalNavigationScope(this); 1350_ownJournalScope = null;

438Debug.Assert(_ownJournalScope != null); 450Debug.Assert(_ownJournalScope == null); 614Debug.Assert(sender == this && _ownJournalScope != null); 615e.CanExecute = _ownJournalScope.CanGoBack; 620Debug.Assert(sender == this && _ownJournalScope != null); 621_ownJournalScope.GoBack(); 627Debug.Assert(sender == this && _ownJournalScope != null); 628e.CanExecute = _ownJournalScope.CanGoForward; 633Debug.Assert(sender == this && _ownJournalScope != null); 634_ownJournalScope.GoForward(); 640Debug.Assert(sender == this && _ownJournalScope != null); 649if (_ownJournalScope.NavigateToEntry(je)) 659Debug.Assert(sender == this && _ownJournalScope != null); 664Debug.Assert(sender == this && _ownJournalScope != null); 671Debug.Assert(sender == this && _ownJournalScope != null); 672_ownJournalScope.StopLoading(); 778Invariant.Assert(_ownJournalScope != null ^ _journalOwnership != JournalOwnership.OwnsJournal); 780if (_ownJournalScope != null) 781return _ownJournalScope; 794return _ownJournalScope; 806bool canGoFwd = _ownJournalScope != null && _ownJournalScope.CanGoForward; 821bool canGoBack = _ownJournalScope != null && _ownJournalScope.CanGoBack; 846if (_ownJournalScope == null) 848return _ownJournalScope.RemoveBackEntry(); 920if (_ownJournalScope == null) 922_ownJournalScope.GoForward(); 934if(_ownJournalScope == null) 936_ownJournalScope.GoBack(); 980IEnumerable backStack = _ownJournalScope?.BackStack; 992IEnumerable fwdStack = _ownJournalScope?.ForwardStack; 1155Debug.Assert(GetValue(BackStackProperty) == _ownJournalScope.BackStack); 1225if (_ownJournalScope != null) 1230state.Journal = _ownJournalScope.Journal; 1250_ownJournalScope.Journal = state.Journal; 1271_ownJournalScope?.EnsureJournal(); 1317Debug.Assert(_ownJournalScope == null ^ _journalOwnership == JournalOwnership.OwnsJournal); 1318if (_ownJournalScope == null) 1332_ownJournalScope.EnsureJournal(); 1347Debug.Assert(_ownJournalScope == null ^ _journalOwnership == JournalOwnership.OwnsJournal); 1348if (_ownJournalScope != null)