TMusic/MainWindow.xaml.cs

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using CommunityToolkit.Mvvm.DependencyInjection;
using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media.Effects;

using TMusic.ViewModel;

namespace TMusic
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            Init();
        }

        private void Init()
        {
            var vm = Ioc.Default.GetService<MainViewModel>();
            vm.Media = mediaElement;
            vm.OpenWindow = () =>
            {
                Show();
                if (WindowState == WindowState.Minimized)
                {
                    WindowState = WindowState.Normal;
                }
                Topmost = true;
                Topmost = false;
            };
            DataContext = vm;
        }

        protected override void OnClosing(CancelEventArgs e)
        {
            Hide();
            e.Cancel = true;
        }

        private void Window_StateChanged(object sender, EventArgs e)
        {
            if (WindowState == WindowState.Normal)
            {
                var de = new DropShadowEffect();
                BorderThickness = new Thickness(20);
                de.BlurRadius = 20;
                de.Opacity = 0.15;
                de.ShadowDepth = 0;
                Effect = de;
            }
            else
            {
                BorderThickness = new Thickness(5);
                Effect = null;