RyLiveTools/Source/Content/MainContent.xaml.cs

using HandyControl.Data;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using HandyControl.Tools;
using HandyControl.Tools.Extension;
using CommunityToolkit.Mvvm.Messaging;
using CommunityToolkit.Mvvm.Messaging.Messages;
using CommunityToolkit.Mvvm.ComponentModel;
using System.Reflection;
using System.Diagnostics.Eventing.Reader;
using System.Windows.Forms;
namespace LiveTools.Content
{
    /// <summary>
    /// MainContent.xaml 的交互逻辑
    /// </summary>
    public partial class MainContent
    {

        public MainContent()
        {
            InitializeComponent();
            WeakReferenceMessenger.Default.Register<string>(this, OnReceive);
        }
        /// <summary>
        /// 
        /// </summary>
        public object SubContent
        {
            get;set;
        }
        private rySafe.UsingLock<object> ui_lock=new rySafe.UsingLock<object>();
        private List<System.Windows.Controls.UserControl> list_ui = new List<System.Windows.Controls.UserControl>();
        public System.Windows.Controls.UserControl GetUI(Type type)
        {
            using (ui_lock.Write())
            {
                var find = list_ui.FindIndex(x => x.GetType() == type);
                if (find == -1)
                {
                    var ctl = (System.Windows.Controls.UserControl)Activator.CreateInstance(type);
                    list_ui.Add(ctl);
                    return ctl;
                }
                else
                {
                    return list_ui[find];
                }
            }
        }
        private void OnReceive(object recipient, string message)
        {
            if (SubContent is IDisposable disposable)
            {
                disposable.Dispose();
            }
            switch (message)
            {
                case "login":
                    if (Config.IsLogin() == 1)
                    {
                        SubContent = GetUI(typeof(FrmAccountInfo));
                    }
                    else
                    {
                        SubContent = GetUI(typeof(FrmLogin));
                    }
                    break;
                case "home":
                    SubContent = GetUI(typeof(FrmAccountInfo));
                    break;
                case "rules":
                    SubContent = GetUI(typeof(FrmRuleView));
                    break;
                case "direct":
                    SubContent = GetUI(typeof(FrmDirectView));
                    break;
                case "setting":
                    SubContent = GetUI(typeof(FrmSetting));
                    break;
            }
            PresenterMain.Content= SubContent;
        }
    }
}