Initial WinUI switch.

Wino.Core.WinUI/Extensions/WebViewExtensions.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Wino.Core.UWP.Extensions;
+
+public static class WebViewExtensions
+{
+    /// <summary>
+    /// Executes a script function in the WebView2 control.
+    /// </summary>
+    /// <param name="isChromiumDisposed">Weird parameter that needed in mailRendering page. TODO: should be reconsidered.</param>
+    /// <param name="parameters">Parameters should be serialized to json</param>
+    public static async Task<string> ExecuteScriptFunctionAsync(this Microsoft.UI.Xaml.Controls.WebView2 Chromium, string functionName, bool isChromiumDisposed = false, params string[] parameters)
+    {
+        string script = functionName + "(" + string.Join(", ", parameters) + ");";
+
+        return isChromiumDisposed ? string.Empty : await Chromium.ExecuteScriptAsync(script);
+    }
+
+    public static async Task<string> ExecuteScriptFunctionSafeAsync(this Microsoft.UI.Xaml.Controls.WebView2 Chromium, string functionName, params string[] parameters)
+    {
+        if (Chromium == null) return string.Empty;
+
+        try
+        {
+            return await Chromium.ExecuteScriptFunctionAsync(functionName, parameters: parameters);
+        }
+        catch { }
+
+        return string.Empty;
+    }
+
+    public static async Task<string> ExecuteScriptSafeAsync(this Microsoft.UI.Xaml.Controls.WebView2 Chromium, string script)
+    {
+        if (Chromium == null) return string.Empty;
+
+        try
+        {
+            return await Chromium.ExecuteScriptAsync(script);
+        }
+        catch { }
+
+        return string.Empty;
+    }
+}