Rearrange files to shared project

2026-03-04 21:09:54 +09:00
parent 182055d19e
commit 385f794b03
61 changed files with 68 additions and 45 deletions
@@ -0,0 +1,78 @@
+using System;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using DialogHostAvalonia;
+using MayShow.Interfaces;
+using MayShow.ViewModels;
+
+namespace MayShow;
+
+public partial class MainWindow : Window, ITopLevelGrabber
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+        DataContext = new MainWindowViewModel(this);
+
+        Closing += WindowIsClosing;
+
+        var lifetime = Application.Current?.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime;
+        // lifetime?.ShutdownRequested += ApplicationIsShuttingDown;
+    }
+
+    private async void WindowIsClosing(object? sender, WindowClosingEventArgs e)
+    {
+        e.Cancel = true; // async -> need to cancel immediately
+        if (await CheckIfClosePossible())
+        {
+            Closing -= WindowIsClosing;
+            var lifetime = Application.Current?.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime;
+            lifetime?.ShutdownRequested -= ApplicationIsShuttingDown;
+            Close();
+        }
+    }
+
+    private async void ApplicationIsShuttingDown(object? sender, ShutdownRequestedEventArgs e)
+    {
+        e.Cancel = true; // async -> need to cancel immediately
+        if (await CheckIfClosePossible())
+        {
+            Closing -= WindowIsClosing;
+            var lifetime = Application.Current?.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime;
+            lifetime?.ShutdownRequested -= ApplicationIsShuttingDown;
+            lifetime?.TryShutdown();
+        }
+    }
+
+    private async Task<bool> CheckIfClosePossible()
+    {
+        var canShutdown = true;
+        if (DataContext is MainWindowViewModel mwvm)
+        {
+            if (mwvm is ICanCheckShutdown canCheck)
+            {
+                canShutdown = await canCheck.CheckIsSafeToShutdown();
+            }
+            // only checking 1 level but for this app that is OK
+            if (canShutdown && mwvm.CurrentViewModel is ICanCheckShutdown currModel)
+            {
+                try
+                {
+                    canShutdown = await currModel.CheckIsSafeToShutdown();
+                }
+                catch (Exception)
+                {
+                    canShutdown = true;
+                }
+            }
+        }
+        return canShutdown;
+    }
+
+    public TopLevel GetTopLevel()
+    {
+        return this;
+    }
+}