Version 3.0.255

Meinkonrad/TINK/View/Map/MapPage.xaml.cs

@@ -0,0 +1,243 @@
+using System;
+using System.Threading.Tasks;
+#if USEFLYOUT
+using TINK.View.MasterDetail;
+#endif
+using Xamarin.Forms;
+using Xamarin.Forms.Xaml;
+
+namespace TINK.View.Map
+{
+    using Serilog;
+    using TINK.ViewModel.Map;
+
+    [XamlCompilation(XamlCompilationOptions.Compile)]
+#if USEFLYOUT
+    public partial class MapPage : ContentPage, IViewService, IDetailPage
+#else
+    public partial class MapPage : ContentPage, IViewService
+#endif
+    {
+        /// <summary> View model to notify about whether page appears or hides. </summary>
+        private MapPageViewModel MapPageViewModel { get; set; }
+
+        /// <summary>
+        /// Constructs map page instance.
+        /// </summary>
+        public MapPage()
+        {
+            InitializeComponent();
+        }
+
+        /// <summary>
+        /// Displays alert message.
+        /// </summary>
+        /// <param name="title">Title of message.</param>
+        /// <param name="message">Message to display.</param>
+        /// <param name="cancel">Type of buttons.</param>
+        public new async Task DisplayAlert(string title, string message, string cancel)
+            => await App.Current.MainPage.DisplayAlert(title, message, cancel);
+
+        /// <summary> Displays alert message.</summary>
+        /// <param name="title">Title of message.</param>
+        /// <param name="message">Message to display.</param>
+        /// <param name="details">Detailed error description.</param>
+        /// <param name="cancel">Type of buttons.</param>
+        public async Task DisplayAdvancedAlert(
+            string title,
+            string message,
+            string details,
+            string cancel)
+            => await App.Current.MainPage.DisplayAlert(title, $"{message}\r\nDetails:\r\n{details}", cancel);
+
+        /// <summary> Displays detailed alert message.</summary>
+        /// <param name="title">Title of message.</param>
+        /// <param name="message">Message to display.</param>
+        /// <param name="details">Detailed error description.</param>
+        /// <param name="accept">Text of accept button.</param>
+        /// <param name="cancel">Text of cancel button.</param>
+        /// <returns>True if user pressed accept.</returns>
+        public async Task<bool> DisplayAdvancedAlert(string title, string message, string details, string accept, string cancel)
+            => await App.Current.MainPage.DisplayAlert(title, $"{message}\r\nDetails:\r\n{details}", accept, cancel);
+
+        /// <summary>
+        /// Displays alert message.
+        /// </summary>
+        /// <param name="title">Title of message.</param>
+        /// <param name="message">Message to display.</param>
+        /// <param name="accept">Text of accept button.</param>
+        /// <param name="cancel">Text of button.</param>
+        /// <returns>True if user pressed accept.</returns>
+        public new async Task<bool> DisplayAlert(string title, string message, string accept, string cancel)
+            => await App.Current.MainPage.DisplayAlert(title, message, accept, cancel);
+
+#if USEFLYOUT
+        /// <summary>
+        /// Creates and a page an shows it.
+        /// </summary>
+        /// <param name="p_oTypeOfPage">Type of page to show.</param>
+        public void ShowPage(ViewTypes type, string title = null)
+            => NavigationMasterDetail.ShowPage(type.GetViewType(), title);
+#else
+        /// <summary> Shows a page.</summary>
+        /// <param name="route">Route of the page to show.</param>
+        public async Task ShowPage(string route) => await Shell.Current.GoToAsync(route);
+#endif
+
+        /// <summary> Pushes a page onto the modal stack. </summary>
+        /// <param name="typeOfPage">Type of page to display.</param>
+        public async Task PushModalAsync(ViewTypes typeOfPage)
+            => await Navigation.PushModalAsync((Page)Activator.CreateInstance(typeOfPage.GetViewType()));
+
+        /// <summary> Pops a page from the modal stack. </summary>
+        public async Task PopModalAsync()
+            => await Navigation.PopModalAsync();
+
+        /// <summary> Pushes a page onto the stack. </summary>
+        /// <param name="typeOfPage">Page to display.</param>
+        public async Task PushAsync(ViewTypes typeOfPage)
+        {
+#if USEFLYOUT
+            var page = Activator.CreateInstance(typeOfPage.GetViewType()) as IDetailPage;
+#else
+            var page = Activator.CreateInstance(p_oTypeOfPage.GetViewType());
+#endif
+            if (page == null)
+            {
+                return;
+            }
+
+#if USEFLYOUT
+            page.NavigationMasterDetail = NavigationMasterDetail;
+#endif
+
+            await Navigation.PushAsync((Page)page);
+        }
+
+#if USCSHARP9
+        public Task<IViewService.IUserFeedback> DisplayUserFeedbackPopup() => throw new NotSupportedException();
+#else
+        public Task<IUserFeedback> DisplayUserFeedbackPopup() => throw new NotSupportedException();
+#endif
+
+#if USEFLYOUT
+        /// <summary> Delegate to perform navigation.</summary>
+        public INavigationMasterDetail NavigationMasterDetail { private get; set; }
+
+#endif
+        /// <summary>
+        /// Invoked when page is shown. 
+        /// Starts update process.
+        /// </summary>
+        protected async override void OnAppearing()
+        {
+            // Pass reference to member Navigation to show bikes at station x dialog.
+            try
+            {
+                Log.ForContext<MapPage>().Verbose("Constructing map page view model.");
+
+#if TRYNOTBACKSTYLE
+                MapPageViewModel = new MapPageViewModel();
+#else
+                MapPageViewModel = new MapPageViewModel(
+                    App.ModelRoot,
+                    App.PermissionsService,
+                    App.BluetoothService,
+                    App.GeolocationServicesContainer.Active,
+                    (mapspan) => MyMap.MoveToRegion(mapspan),
+                    this,
+                    Navigation);
+#endif
+            } catch (Exception exception)
+            {
+
+                Log.ForContext<MapPage>().Error("Constructing map page view model failed. {Exception}", exception);
+                return;
+            }
+
+            try
+            {
+                BindingContext = MapPageViewModel;
+
+#if USEFLYOUT
+                MapPageViewModel.NavigationMasterDetail = NavigationMasterDetail;
+#endif
+            }
+            catch (Exception exception)
+            {
+                Log.ForContext<MapPage>().Error("Setting binding/ navigaton on map page failed. {Exception}", exception);
+                return;
+            }
+
+            try
+            {
+                if (Device.RuntimePlatform == Device.iOS)
+                {
+                    TINKButton.BackgroundColor = Color.LightGray;
+                    TINKButton.BorderColor = Color.Black;
+                    TINKButton.Margin = new Thickness(10, 10, 10, 10);
+                    KonradButton.BackgroundColor = Color.LightGray;
+                    KonradButton.BorderColor = Color.Black;
+                    KonradButton.Margin = new Thickness(10, 10, 10, 10);
+                }
+            }
+            catch (Exception exception)
+            {
+                // Continue because styling is not essential.
+                Log.ForContext<MapPage>().Error("IOS specific styling of map page failed. {Exception}", exception);
+            }
+
+            try
+            {
+                base.OnAppearing();
+            }
+            catch (Exception exception)
+            {
+                // Continue because styling is not essential.
+                Log.ForContext<MapPage>().Error("Invoking OnAppearing of base failed. {Exception}", exception);
+                return;
+            }
+
+            try
+            {
+                // Pre move and scanle maps to avoid initial display of map in Rome.
+                Log.ForContext<MapPage>().Verbose("Moving and scaling map.");
+                MapPageViewModel.MoveAndScale(
+                    (mapSpan) => MyMap.MoveToRegion(mapSpan),
+                    App.ModelRoot.Uris.ActiveUri,
+                    App.ModelRoot.GroupFilterMapPage);
+            }
+            catch(Exception exception)
+            {
+                // Continue because a map not beeing moved/ scaled is no reason for aborting startup.
+                Log.ForContext<MapPage>().Error("Moving and scaling map failed. {Exception}", exception);
+            }
+
+            try
+            {
+                Log.ForContext<MapPage>().Verbose("Invoking OnAppearing on map page view model.");
+                await MapPageViewModel.OnAppearing();
+            }
+            catch (Exception exception)
+            {
+                Log.ForContext<MapPage>().Error("Invoking OnAppearing on map page view model failed. {Exception}", exception);
+                return;
+            }
+        }
+
+        /// <summary>
+        /// Invoked when pages is closed/ hidden. 
+        /// Stops update process.
+        /// </summary>
+        protected override async void OnDisappearing()
+        {
+            if (MapPageViewModel != null)
+            {
+                // View model might be null.
+                await MapPageViewModel?.OnDisappearing();
+            }
+
+            base.OnDisappearing();
+        }
+    }
+}