public NavBarViewModel(NavigationStateViewModel navigationState, RoutingState router, WalletManagerViewModel walletManager, AddWalletPageViewModel addWalletPage)
{
Router = router;
_walletManager = walletManager;
_topItems = new ObservableCollection <NavBarItemViewModel>();
_bottomItems = new ObservableCollection <NavBarItemViewModel>();
var homePage = new HomePageViewModel(navigationState, walletManager, addWalletPage);
var settingsPage = new SettingsPageViewModel(navigationState);
var searchPage = new SearchPageViewModel(navigationState, walletManager, addWalletPage, settingsPage, homePage);
_selectedItem = homePage;
_topItems.Add(SelectedItem);
_bottomItems.Add(searchPage);
_bottomItems.Add(settingsPage);
_bottomItems.Add(addWalletPage);
Router.CurrentViewModel
.OfType <NavBarItemViewModel>()
.Subscribe(
x =>
{
if (walletManager.Items.Contains(x) || _topItems.Contains(x) || _bottomItems.Contains(x))
{
if (!_isNavigating)
{
_isNavigating = true;
SelectedItem = x;
_isNavigating = false;
}
}
});
this.WhenAnyValue(x => x.SelectedItem)
.OfType <NavBarItemViewModel>()
.Subscribe(
x =>
{
if (!_isNavigating)
{
_isNavigating = true;
x.NavigateToSelfAndReset(x.CurrentTarget);
CollapseOnClickAction?.Invoke();
_isNavigating = false;
}
});
Observable.FromEventPattern(Router.NavigationStack, nameof(Router.NavigationStack.CollectionChanged))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(_ => IsBackButtonVisible = Router.NavigationStack.Count > 1);
this.WhenAnyValue(x => x.IsOpen)
.Subscribe(x => SelectedItem.IsExpanded = x);
}
public NavBarViewModel(IScreen screen, RoutingState router, WalletManager walletManager, UiConfig uiConfig)
{
_screen = screen;
Router = router;
_topItems = new ObservableCollection <NavBarItemViewModel>();
_items = new ObservableCollection <WalletViewModelBase>();
_bottomItems = new ObservableCollection <NavBarItemViewModel>();
_walletDictionary = new Dictionary <Wallet, WalletViewModelBase>();
SelectedItem = new HomePageViewModel(screen);
_topItems.Add(_selectedItem);
_bottomItems.Add(new AddWalletPageViewModel(screen));
_bottomItems.Add(new SettingsPageViewModel(screen));
Router.CurrentViewModel
.OfType <NavBarItemViewModel>()
.Subscribe(x =>
{
if (_items.Contains(x) || _topItems.Contains(x) || _bottomItems.Contains(x))
{
if (!_isNavigating)
{
_isNavigating = true;
SelectedItem = x;
_isNavigating = false;
}
}
});
this.WhenAnyValue(x => x.SelectedItem)
.OfType <IRoutableViewModel>()
.Subscribe(x =>
{
if (!_isNavigating)
{
_isNavigating = true;
Router.NavigateAndReset.Execute(x);
CollapseOnClickAction?.Invoke();
_isNavigating = false;
}
});
Observable.FromEventPattern(Router.NavigationStack, nameof(Router.NavigationStack.CollectionChanged))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(_ => IsBackButtonVisible = Router.NavigationStack.Count > 1);
Observable
.FromEventPattern <WalletState>(walletManager, nameof(WalletManager.WalletStateChanged))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(x =>
{
var wallet = x.Sender as Wallet;
if (wallet is { } && _walletDictionary.ContainsKey(wallet))
{
if (wallet.State == WalletState.Stopping)
{
RemoveWallet(_walletDictionary[wallet]);
}
else if (_walletDictionary[wallet] is ClosedWalletViewModel cwvm && wallet.State == WalletState.Started)
{
OpenClosedWallet(walletManager, uiConfig, cwvm);
}
}
AnyWalletStarted = Items.OfType <WalletViewModelBase>().Any(x => x.WalletState == WalletState.Started);
});