protected override void OnStartup(StartupEventArgs e)
{
_rootFrame = new Frame();
_rootFrame.NavigationUIVisibility = NavigationUIVisibility.Hidden;
_dependemcyInjection = new DependencyInjection();
DefineConfigurations();
_navigationManager = new NavigationManager(_dependemcyInjection);
var window = _dependemcyInjection
.DefineDependency <MainWindow>(0, _rootFrame).Resolve <MainWindow>();
window.Top = 50;
window.Left = 50;
Current.MainWindow = window;
NavigationEventHub.Navigated += OnNavigated;
NavigationEventHub.Navigating += OnNavigating;
NavigationEventHub.NavigationFailed += OnNavigationFailed;
if (_rootFrame.Content == null)
{
var page = _dependemcyInjection.Resolve <SourceUpdatesPage>();
_rootFrame.Navigate(page);
NavigationEventHub.OnNavigated(this, new global::WPF.Tools.Navigation.Events.NavigationEventArgs("Updates", new object[] { }));
}
window.Show();
}
public static bool GoBack()
{
var navigated = false;
if (CanGoBack())
{
if (GetRootFrame() is Frame mainFrame)
{
_nextPageTitle = _pageTitle;
_nextPage = _actualPage;
_nextExtraContent = _extraContent;
_pageTitle = _previousPageTitle;
_actualPage = _previousPage;
_extraContent = _previousExtraContent;
_previousPageTitle = null;
_previousPage = null;
_previousExtraContent = null;
mainFrame.Content = _actualPage;
navigated = true;
NavigationEventHub.OnNavigated(_previousPage, new NavigationEventArgs(_pageTitle, _nextPage, _actualPage, _extraContent));
}
}
return(navigated);
}
public void Navigate <T>(string pageTitle, object extra) where T : Page
{
var page = default(T);
try {
if (GetRootFrame().Content != null && GetRootFrame().Content is Page pg)
{
_previousPageTitle = pageTitle;
_previousPage = pg;
_previousExtraContent = _extraContent;
}
page = _dependencyInjection.Resolve <T>();
NavigationEventHub.OnNavigating(_previousPage, new NavigationEventArgs(pageTitle, page, extra));
_actualPage = page;
GetRootFrame().Content = page;
_extraContent = extra;
_pageTitle = pageTitle;
page.Loaded += Page_Loaded;
} catch (Exception e) {
NavigationEventHub.OnNavigationFailed(page, new NavigationFailedEventArgs(pageTitle, _previousPage, typeof(T), extra, e));
}
}
private void Page_Loaded(object sender, RoutedEventArgs e)
{
NavigationEventHub.OnNavigated(_actualPage, new NavigationEventArgs(_pageTitle, _previousPage, _actualPage, _extraContent));
}