[OOBE] Out of box experience window (#9973)

src/settings-ui/PowerToys.Settings/OobeWindow.xaml.cs

@@ -0,0 +1,88 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Windows;
+using interop;
+using Microsoft.PowerToys.Settings.UI.Helpers;
+using Microsoft.PowerToys.Settings.UI.OOBE.Views;
+using Microsoft.Toolkit.Wpf.UI.XamlHost;
+
+namespace PowerToys.Settings
+{
+    /// <summary>
+    /// Interaction logic for OobeWindow.xaml
+    /// </summary>
+    public partial class OobeWindow : Window
+    {
+        private static Window inst;
+        private OobeShellPage shellPage;
+
+        public static bool IsOpened
+        {
+            get
+            {
+                return inst != null;
+            }
+        }
+
+        public OobeWindow()
+        {
+            InitializeComponent();
+        }
+
+        private void Window_Closed(object sender, EventArgs e)
+        {
+            if (shellPage != null)
+            {
+                shellPage.OnClosing();
+            }
+
+            inst = null;
+            MainWindow.CloseHiddenWindow();
+        }
+
+        private void Window_Loaded(object sender, RoutedEventArgs e)
+        {
+            if (inst != null)
+            {
+                inst.Close();
+            }
+
+            inst = this;
+        }
+
+        private void WindowsXamlHost_ChildChanged(object sender, EventArgs e)
+        {
+            if (sender == null)
+            {
+                return;
+            }
+
+            WindowsXamlHost windowsXamlHost = sender as WindowsXamlHost;
+            shellPage = windowsXamlHost.GetUwpInternalObject() as OobeShellPage;
+
+            OobeShellPage.SetRunSharedEventCallback(() =>
+            {
+                return Constants.PowerLauncherSharedEvent();
+            });
+
+            OobeShellPage.SetColorPickerSharedEventCallback(() =>
+            {
+                return Constants.ShowColorPickerSharedEvent();
+            });
+
+            OobeShellPage.SetShortcutGuideSharedEventCallback(() =>
+            {
+                NativeMethods.AllowSetForegroundWindow(PowerToys.Settings.Program.PowerToysPID);
+                return Constants.ShowShortcutGuideSharedEvent();
+            });
+
+            OobeShellPage.SetOpenMainWindowCallback((Type type) =>
+            {
+                ((App)Application.Current).OpenSettingsWindow(type);
+            });
+        }
+    }
+}