自动提示安装 webview2

Author: clansty

AquaMai

@@ -1,6 +1,10 @@
-using SingleInstanceCore;
+using System.Diagnostics;
+using SingleInstanceCore;
 using System.Text.Json;
+using Windows.ApplicationModel;
+using Windows.ApplicationModel.Activation;
 using MaiChartManager.Controllers.Music;
+using Microsoft.Web.WebView2.Core;
 using Xabe.FFmpeg;
 
 namespace MaiChartManager;
@@ -49,7 +53,12 @@ public void Run()
             {
                 try
                 {
-                    StaticSettings.Config = JsonSerializer.Deserialize<Config>(File.ReadAllText(Path.Combine(StaticSettings.appData, "config.json")));
+                    var cfg = JsonSerializer.Deserialize<Config>(File.ReadAllText(Path.Combine(StaticSettings.appData, "config.json")));
+                    if (cfg == null)
+                    {
+                        throw new Exception("config.json is null");
+                    }
+                    StaticSettings.Config = cfg;
                 }
                 catch (Exception e)
                 {
@@ -59,6 +68,23 @@ public void Run()
                 }
             }
 
+            string? availableVersion = null;
+            try
+            {
+                availableVersion = CoreWebView2Environment.GetAvailableBrowserVersionString();
+            }
+            catch (WebView2RuntimeNotFoundException) { }
+
+            if (availableVersion == null && !IsFromStartup)
+            {
+                var answer = MessageBox.Show("WebView2 运行时未安装，在启动之后可能会白屏…\n\n如果你觉得你已经安装了 WebView2 运行时，请尝试重启电脑。\n\n要尝试安装一下 WebView2 吗？", "WebView2 未安装", MessageBoxButtons.YesNo,
+                    MessageBoxIcon.Warning);
+                if (answer == DialogResult.Yes)
+                {
+                    Process.Start(new ProcessStartInfo(Path.Combine(StaticSettings.exeDir, "MicrosoftEdgeWebview2Setup.exe")) { UseShellExecute = true });
+                }
+            }
+
             IapManager.Init();
 
             _launcher = new Launcher();
@@ -73,6 +99,31 @@ public void Run()
         }
     }
 
+    private static bool? _isFromStartup;
+
+    public static bool IsFromStartup
+    {
+        get
+        {
+            if (_isFromStartup.HasValue)
+                return _isFromStartup.Value;
+            try
+            {
+                var aeArgs = AppInstance.GetActivatedEventArgs();
+                _isFromStartup = aeArgs?.Kind == ActivationKind.StartupTask;
+                return _isFromStartup.Value;
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e);
+                SentrySdk.CaptureException(e);
+            }
+
+            _isFromStartup = false;
+            return false;
+        }
+    }
+
     public void OnInstanceInvoked(string[] args)
     {
         _launcher.ShowWindow();

MaiChartManager/AppMain.cs

@@ -34,7 +34,7 @@ public Launcher()
         notifyIcon1.Visible = true;
         WindowState = FormWindowState.Minimized;
 # endif
-        if (!isFromStartup())
+        if (!AppMain.IsFromStartup)
         {
             Visible = true;
             IapManager.BindToForm(this);
@@ -49,22 +49,6 @@ public Launcher()
         StartClicked(null, null);
     }
 
-    private bool isFromStartup()
-    {
-        try
-        {
-            var aeArgs = AppInstance.GetActivatedEventArgs();
-            return aeArgs?.Kind == ActivationKind.StartupTask;
-        }
-        catch (Exception e)
-        {
-            Console.WriteLine(e);
-            SentrySdk.CaptureException(e);
-        }
-
-        return false;
-    }
-
     private async Task CheckStartupStatus()
     {
         var startupTask = await StartupTask.GetAsync("MaiChartManagerStartupId");

MaiChartManager/Launcher.cs

@@ -8,4 +8,4 @@
 [assembly: AssemblyTitle("MaiChartManager")]
 [assembly: AssemblyVersion(AppMain.Version)]
 [assembly: System.Runtime.Versioning.TargetPlatformAttribute("Windows10.0.17763.0")]
-[assembly: System.Runtime.Versioning.SupportedOSPlatformAttribute("Windows10.0.14393.0")]
+[assembly: System.Runtime.Versioning.SupportedOSPlatformAttribute("Windows10.0.17134.0")]