public MenuViewModel(INavigationService navigationService, IEventAggregator eventAggregator,
ISessionStateService sessionStateService, RecipesFacade recipesFacade)
{
_navigationService = navigationService;
_sessionStateService = sessionStateService;
_recipesFacade = recipesFacade;
eventAggregator.GetEvent <NavigationStateChangedEvent>().Subscribe(OnNavigationStateChanged);
MenuItems = new ObservableCollection <MenuViewItem>(new[]
{
new MenuViewItem("Recettes", "\ued56", PageTokens.Recipes),
new MenuViewItem("Sélection", "\uf0e3", PageTokens.SelectedRecipes),
new MenuViewItem("Liste des courses", "\ue7bf", PageTokens.ShoppingList),
new MenuViewItem("Favories", "\ue113", PageTokens.FavoriteRecipes),
new MenuViewItem("Drives", "\uec47", PageTokens.Stores)
});
SettingsMenuItem = new MenuViewItem("Paramètres", "\ue713", PageTokens.Settings);
UpdateSelectedRecipesMenuItemTitle();
UpdateFavoritesMenuItemTitle();
_recipesFacade.SelectedRecipesContainer.CollectionChanged += OnSelectedRecipesContainerChanged;
_recipesFacade.FavoriteRecipesContainer.CollectionChanged += OnFavoriteRecipesContainerChanged;
}
private void OnNavigationStateChanged(NavigationStateChangedEventArgs args)
{
PageTokens currentPageToken;
if (Enum.TryParse(args.Sender.Content.GetType().Name.Replace("Page", string.Empty), out currentPageToken))
{
_sessionStateService.SessionState[_CurrentPageTokenKey] = currentPageToken.ToString();
var currentMenuItem = MenuItems.FirstOrDefault(item => item.Token == currentPageToken);
if (currentMenuItem != null)
{
SelectedMenuItem = currentMenuItem;
}
}
}
