项目要求更改

CapMachine.Wpf/ViewModels/MainViewModel.cs

@@ -6,24 +6,28 @@ using CapMachine.Wpf.Services;
 using Prism.Commands;
 using Prism.Events;
 using Prism.Regions;
+using System;
+using System.Windows;
 using System.Windows.Input;
 
 namespace CapMachine.Wpf.ViewModels
 {
     public class MainViewModel : NavigationViewModel
     {
-        public MainViewModel(IRegionManager region, INavigationMenuService menuService, SysRunService sysService, IEventAggregator eventAggregator)
+        public MainViewModel(IRegionManager region, INavigationMenuService menuService, SysRunService sysService, IEventAggregator eventAggregator, ConfigService configService)
         {
             this.region = region;
             MenuService = menuService;
             SysService = sysService;
             EventAggregator = eventAggregator;
+            ConfigService = configService;
             NavigateCommand = new DelegateCommand<NavigationItem>(Navigate);
         }
 
         public INavigationMenuService MenuService { get; }
         public SysRunService SysService { get; }
         public IEventAggregator EventAggregator { get; }
+        public ConfigService ConfigService { get; }
         public DelegateCommand<NavigationItem> NavigateCommand { get; private set; }
 
         private int selectedIndex = -1;
@@ -59,11 +63,43 @@ namespace CapMachine.Wpf.ViewModels
                 return;
             }
 
+            if (!CanNavigate(item.PageName))
+            {
+                IsTopDrawerOpen = false;
+                return;
+            }
+
             NavigatePage(item.PageName);
 
             IsTopDrawerOpen = false;
         }
 
+        /// <summary>
+        /// 校验当前页面是否允许导航
+        /// </summary>
+        /// <param name="pageName">目标页面名称</param>
+        /// <returns>true允许导航，false禁止导航</returns>
+        private bool CanNavigate(string pageName)
+        {
+            if (string.IsNullOrWhiteSpace(pageName))
+            {
+                return false;
+            }
+
+            if (pageName.Equals("UserManageView", StringComparison.OrdinalIgnoreCase))
+            {
+                return true;
+            }
+
+            if (ConfigService.IsUserLoggedIn)
+            {
+                return true;
+            }
+
+            MessageBox.Show("请先登录用户，再切换到其他界面！", "提示");
+            return false;
+        }
+
         private DelegateCommand<string> _TopDrawerCmd;
         /// <summary>
         /// 顶部弹窗按钮命令