修复可能的崩溃 bug

Author: wtcpython

MainWindow.xaml.cs

@@ -218,10 +218,9 @@ private void MoveTabToNewWindow(object sender, RoutedEventArgs e)
         private void CloseTab(object sender, object e)
         {
             TabViewItem item = e is TabViewTabCloseRequestedEventArgs args ? args.Tab : tabView.SelectedItem as TabViewItem;
-            if (item.Content is WebViewPage)
+            if (item.Content is WebViewPage page)
             {
-                WebView2 webView2 = App.GetWebView2(item);
-                webView2.Close();
+                page.Close();
             }
 
             tabView.TabItems.Remove(item);

Pages/WebViewPage.xaml.cs

@@ -23,6 +23,11 @@ public WebViewPage(Uri WebUri)
             favoriteList.Visibility = App.settings.MenuStatus == "Always" ? Visibility.Visible : Visibility.Collapsed;
         }
 
+        public void Close()
+        {
+            WebView2.Close();
+        }
+
         private void InitializeToolbarVisibility()
         {
             homeButton.Visibility = App.settings.ToolBar!["HomeButton"] ? Visibility.Visible : Visibility.Collapsed;