104 lines
2.9 KiB
C#
104 lines
2.9 KiB
C#
using System.Diagnostics.CodeAnalysis;
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using Microsoft.UI.Xaml.Controls;
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using RustTools.Contracts.Services;
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using RustTools.Helpers;
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using RustTools.ViewModels;
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namespace RustTools.Services;
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public class NavigationViewService : INavigationViewService
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{
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private readonly INavigationService _navigationService;
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private readonly IPageService _pageService;
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private NavigationView? _navigationView;
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public IList<object>? MenuItems => _navigationView?.MenuItems;
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public object? SettingsItem => _navigationView?.SettingsItem;
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public NavigationViewService(INavigationService navigationService, IPageService pageService)
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{
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_navigationService = navigationService;
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_pageService = pageService;
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}
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[MemberNotNull(nameof(_navigationView))]
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public void Initialize(NavigationView navigationView)
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{
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_navigationView = navigationView;
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_navigationView.BackRequested += OnBackRequested;
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_navigationView.ItemInvoked += OnItemInvoked;
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}
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public void UnregisterEvents()
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{
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if (_navigationView != null)
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{
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_navigationView.BackRequested -= OnBackRequested;
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_navigationView.ItemInvoked -= OnItemInvoked;
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}
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}
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public NavigationViewItem? GetSelectedItem(Type pageType)
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{
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if (_navigationView != null)
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{
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return GetSelectedItem(_navigationView.MenuItems, pageType) ?? GetSelectedItem(_navigationView.FooterMenuItems, pageType);
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}
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return null;
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}
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private void OnBackRequested(NavigationView sender, NavigationViewBackRequestedEventArgs args) => _navigationService.GoBack();
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private void OnItemInvoked(NavigationView sender, NavigationViewItemInvokedEventArgs args)
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{
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if (args.IsSettingsInvoked)
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{
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_navigationService.NavigateTo(typeof(SettingsViewModel).FullName!);
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}
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else
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{
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var selectedItem = args.InvokedItemContainer as NavigationViewItem;
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if (selectedItem?.GetValue(NavigationHelper.NavigateToProperty) is string pageKey)
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{
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_navigationService.NavigateTo(pageKey);
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}
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}
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}
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private NavigationViewItem? GetSelectedItem(IEnumerable<object> menuItems, Type pageType)
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{
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foreach (var item in menuItems.OfType<NavigationViewItem>())
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{
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if (IsMenuItemForPageType(item, pageType))
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{
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return item;
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}
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var selectedChild = GetSelectedItem(item.MenuItems, pageType);
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if (selectedChild != null)
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{
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return selectedChild;
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}
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}
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return null;
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}
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private bool IsMenuItemForPageType(NavigationViewItem menuItem, Type sourcePageType)
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{
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if (menuItem.GetValue(NavigationHelper.NavigateToProperty) is string pageKey)
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{
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return _pageService.GetPageType(pageKey) == sourcePageType;
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}
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return false;
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}
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}
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