266 lines
9.1 KiB
C#
266 lines
9.1 KiB
C#
using Microsoft.Win32;
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using InSituLaboratory.Base;
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using InSituLaboratory.Entities;
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using InSituLaboratory.IService;
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using InSituLaboratory.Models;
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using Prism.Commands;
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using Prism.Events;
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using Prism.Mvvm;
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using Prism.Regions;
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using Prism.Services.Dialogs;
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using Microsoft.EntityFrameworkCore;
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namespace InSituLaboratory.ViewModels
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{
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public class MainViewModel : BindableBase
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{
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List<Entities.SysMenu> origMenus;
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public UserModel CurrentUser { get; set; } = new UserModel();
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/// <summary>
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/// 修改密码
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/// </summary>
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public DelegateCommand ModifyPasswordCommand { get; set; }
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/// <summary>
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/// 切换用户
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/// </summary>
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public DelegateCommand SwitchCommand { get; set; }
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/// <summary>
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/// 设置用户头像
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/// </summary>
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public DelegateCommand<string> SetAvatarCommand { get; set; }
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public bool IsDropdownAvatar { get; set; }
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IDialogService _dialogService;
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IRegionManager _regionManager;
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IMenuService _menuService;
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IUserService _userService;
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IRoleService _roleService;
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public MainViewModel(IDialogService dialogService,
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IRegionManager regionManager,
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IMenuService menuService,
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IUserService userService,
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IRoleService roleService,
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IEventAggregator eventAggregator)
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{
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_regionManager = regionManager;
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_menuService = menuService;
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_userService = userService;
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_dialogService = dialogService;
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_roleService = roleService;
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//打开登录窗口
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dialogService.ShowDialog("LoginView",
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result =>
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{
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if (result.Result != ButtonResult.OK)
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{
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System.Environment.Exit(0);
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}
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else
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{
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// 记录当前登录用户信息
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var su = result.Parameters.GetValue<SysUser>("user");
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CurrentUser.UserId = su.UserId;
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CurrentUser.UserName = su.UserName;
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CurrentUser.RealName = su.RealName;
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CurrentUser.Password = su.Password;
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CurrentUser.UserIcon = "pack://siteoforigin:,,,/Avatars/" + su.UserIcon;
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CurrentUser.Gender1 = su.Gender == 1 ? "男" : "女";
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CurrentUser.Address = su.Address;
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CurrentUser.Age = su.Age;
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CurrentUser.Status = su.Status;
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CurrentUser.Phone = su.Phone;
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CurrentUser.Roles = su.Roles.Select(r => new RoleModel { RoleId = r.RoleId }).ToList();
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}
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});
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// 当前窗口要做的事
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OpenViewCommand = new DelegateCommand<MenuItemModel>(DoOpenView);
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ModifyPasswordCommand = new DelegateCommand(DoModifyPassword);
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SwitchCommand = new DelegateCommand(DoSwitch);
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SetAvatarCommand = new DelegateCommand<string>(DoSetAvatar);
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eventAggregator.GetEvent<RefreshMenuEvent>()
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.Subscribe(() =>
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{
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LoadMenus();
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});
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// 加载菜单
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LoadMenus();
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}
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private void LoadMenus()
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{
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Menus.Clear();
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// 获取所有菜单
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// 确认当前用户有哪些权限 CurrentUser.Roles RoleId
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// 根据RoleId 获取角色下的所有MenuID
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var rs = _roleService.Set<SysRole>()
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.Include(r => r.Menus)
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.Where(r => CurrentUser.Roles.Select(cr => cr.RoleId).Contains(r.RoleId)).ToList();
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List<int> mis = new List<int>();
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rs.ForEach(r => mis.AddRange(r.Menus.Select(rm => rm.MenuId)));
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// 根据MenuId 获取所有的菜单信息
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origMenus = _menuService.Query<SysMenu>(m => mis.Contains(m.MenuId)).ToList();
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//origMenus = _menuService.GetMenuList().ToList();
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// 树状填充
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MenuHelper.FillMenus(Menus, null, origMenus, false);
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}
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#region 菜单相关功能
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public DelegateCommand<MenuItemModel> OpenViewCommand { get; set; }
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private ObservableCollection<MenuItemModel> _menus =
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new ObservableCollection<MenuItemModel>();
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public ObservableCollection<MenuItemModel> Menus
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{
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get { return _menus; }
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set { SetProperty(ref _menus, value); }
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}
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private void DoOpenView(MenuItemModel model)
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{
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// 需要判断：双击的是父节点的时候，关闭或者打开；双击的是子节点，打开对应的页面
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if (model.Children != null && model.Children.Count > 0)
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{
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model.IsExpanded = !model.IsExpanded;
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}
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else if (!string.IsNullOrEmpty(model.TargetView))
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{
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_regionManager.RequestNavigate("MainRegion", model.TargetView);
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}
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}
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#endregion
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/// <summary>
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/// 修改用户密码
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/// </summary>
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public void DoModifyPassword()
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{
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DialogParameters param = new DialogParameters();
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param.Add("uid", CurrentUser.UserId);
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param.Add("pwd", CurrentUser.Password);
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_dialogService.ShowDialog(
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"ModifyPasswordView",
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param,
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result =>
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{
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// 密码修改完成后的回调逻辑？
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// 如果修改完成
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if (result.Result == ButtonResult.OK)
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{
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// 重启应用，重新登录
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// 提示一下 是否立即重启，允许用户选择，不然直接重启会有些唐突
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// 自己完善
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if (MessageBox.Show("是否确定立即重启？", "提示", MessageBoxButton.YesNo) ==
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MessageBoxResult.Yes)
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{
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DoSwitch();
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}
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}
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});
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}
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/// <summary>
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/// 切换用户
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/// </summary>
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public void DoSwitch()
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{
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Process.Start("InSituLaboratory.exe");
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System.Environment.Exit(0);
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}
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/// <summary>
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/// 设置用户头像
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/// </summary>
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/// <param name="avatar"></param>
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private void DoSetAvatar(string avatar)
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{
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try
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{
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if (string.IsNullOrEmpty(avatar))
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{
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//打开选择文件窗口
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OpenFileDialog dialog = new OpenFileDialog();
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dialog.Filter = "*.jpg,*.png,*.jpeg|*.jpg;*.png;*.jpeg";
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dialog.CheckFileExists = true;
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if (dialog.ShowDialog() == true)
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{
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// 开发头像选择功能的时候，可能还需要做图像的裁切
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// XXXXX.jpg
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avatar = dialog.SafeFileName; ;//文件名称，不是路径
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// 可能出现：两次选择了不同目录下的两个图像文件，这两个文件名称一致
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// 但是在判断的时候，是以名称来时行判断的，导致后一次图像无法替代
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// 如果需要解决：可以使用用户ID进行图像文件的重命名（复制的时候，以用用户ID作为图像文件的名称）
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// 注意：二次修改的时候需要覆盖操作（涉及图像文件的占用问题）
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// 如果需要解决文件占用问题的话，需要将图像进行内在读取，然后转ImageSource对象，提供给页面显示
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// 复制到当前目录下
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string target_path = Path.Combine(System.Environment.CurrentDirectory, "Avatars", avatar);
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if (!File.Exists(target_path))
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{
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File.Copy(dialog.FileName, target_path);
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}
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}
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else
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{
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return;
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}
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}
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// avatar:文件名称
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var user = _userService.Find<SysUser>(CurrentUser.UserId);
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user.UserIcon = avatar;
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_userService.Update(user);
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CurrentUser.UserIcon = "pack://siteoforigin:,,,/Avatars/" + avatar;
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IsDropdownAvatar = false;
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this.RaisePropertyChanged(nameof(IsDropdownAvatar));
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}
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catch (Exception ex)
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{
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throw;
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}
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}
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}
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}
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