Version 3.0.381

LastenradBayern/ShareeBike/ViewModel/RootShell/AppShellViewModel.cs

@@ -0,0 +1,62 @@
+using System.ComponentModel;
+using ShareeBike.MultilingualResources;
+using ShareeBike.Services;
+using ShareeBike.Services.CopriApi.ServerUris;
+using ShareeBike.View.Themes;
+using ShareeBike.ViewModel.LegalInformation;
+
+namespace ShareeBike.ViewModel.RootShell
+{
+	public class AppShellViewModel : INotifyPropertyChanged
+	{
+		public AppShellViewModel()
+		{
+			App.ModelRoot.ActiveUser.StateChanged += (sender, eventargs) =>
+			{
+				// Login state changed. Update related menu entries.
+				PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(IsMyBikesPageVisible)));
+				PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(IsAccountPageVisible)));
+				PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(IsLoginPageVisible)));
+			};
+
+			// Update flyout view model whenever theme is switched.
+			App.ModelRoot.Themes.PropertyChanged += (sender, eventargs) =>
+			{
+				if (!(sender is ServicesContainerMutableT<object> themes))
+					return;
+
+				MasterDetailMenuTitle = GetMasterDetailMenuTitle(themes.Active);
+
+				PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(MasterDetailMenuTitle)));
+			};
+
+			MasterDetailMenuTitle = GetMasterDetailMenuTitle(App.ModelRoot.Themes.Active);
+		}
+
+		/// <summary>
+		/// Gets the flyout title from theme name
+		/// </summary>
+		/// <param name="theme">Name of theme.</param>
+		/// <returns>Flyout title.</returns>
+		private string GetMasterDetailMenuTitle(object theme)
+		{
+			if (!(theme is ITheme active))
+				return ShareeBike.Themes.ShareeBike.OPERATORINFO;
+
+			return $"{(!string.IsNullOrEmpty(active.OperatorInfo) ? ($"{active.OperatorInfo}") : "sharee.bike")}";
+		}
+
+		/// <summary>
+		/// Holds the title of the flyout page.
+		/// </summary>
+		public string MasterDetailMenuTitle { get; private set; }
+
+		public event PropertyChangedEventHandler PropertyChanged;
+
+		public bool IsMyBikesPageVisible => App.ModelRoot.ActiveUser.IsLoggedIn;
+
+		public bool IsAccountPageVisible => App.ModelRoot.ActiveUser.IsLoggedIn;
+
+		public bool IsLoginPageVisible => !App.ModelRoot.ActiveUser.IsLoggedIn;
+	}
+}