[settings] Fix OOBE size and make it non-resizable & Bring back Settings window placement preserve logic (#17822)

* Fix OOBE size and make it non-resizable
Bring back Settings window placement preserve logic

* Disable OOBE maximize&minimize

* expect.txt

* Remove uneeded line

* Remove uneeded check

* Add brackets

.github/actions/spell-check/expect.txt

@@ -1157,6 +1157,7 @@ Marquesas
 martinchrzan
 martinmoene
 Mato
+Maximizable
 MAXIMIZEBOX
 MAXSHORTCUTSIZE
 maxversiontested
@@ -1203,6 +1204,7 @@ millis
 mimetype
 mindaro
 Minimatch
+Minimizable
 MINIMIZEBOX
 MINIMIZEEND
 MINIMIZESTART

src/settings-ui/Settings.UI/Helpers/Utils.cs

@@ -0,0 +1,49 @@
+// 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.IO;
+using System.Runtime.InteropServices;
+using System.Text.Json;
+
+namespace Microsoft.PowerToys.Settings.UI.Helpers
+{
+    internal class Utils
+    {
+        private static string _placementPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), @"Microsoft\PowerToys\settings-placement.json");
+
+        public static WINDOWPLACEMENT DeserializePlacementOrDefault(IntPtr handle)
+        {
+            try
+            {
+                var json = File.ReadAllText(_placementPath);
+                var placement = JsonSerializer.Deserialize<WINDOWPLACEMENT>(json);
+
+                placement.Length = Marshal.SizeOf(typeof(WINDOWPLACEMENT));
+                placement.Flags = 0;
+                placement.ShowCmd = (placement.ShowCmd == NativeMethods.SW_SHOWMAXIMIZED) ? NativeMethods.SW_SHOWMAXIMIZED : NativeMethods.SW_SHOWNORMAL;
+                return placement;
+            }
+            catch (Exception)
+            {
+            }
+
+            _ = NativeMethods.GetWindowPlacement(handle, out var defaultPlacement);
+            return defaultPlacement;
+        }
+
+        public static void SerializePlacement(IntPtr handle)
+        {
+            _ = NativeMethods.GetWindowPlacement(handle, out var placement);
+            try
+            {
+                var json = JsonSerializer.Serialize(placement);
+                File.WriteAllText(_placementPath, json);
+            }
+            catch (Exception)
+            {
+            }
+        }
+    }
+}

src/settings-ui/Settings.UI/MainWindow.xaml.cs

@@ -3,7 +3,9 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
+using System.Drawing;
 using Microsoft.PowerLauncher.Telemetry;
+using Microsoft.PowerToys.Settings.UI.Helpers;
 using Microsoft.PowerToys.Settings.UI.Library.Utilities;
 using Microsoft.PowerToys.Settings.UI.Views;
 using Microsoft.PowerToys.Telemetry;
@@ -34,6 +36,9 @@ namespace Microsoft.PowerToys.Settings.UI
             AppWindow appWindow = AppWindow.GetFromWindowId(windowId);
             appWindow.SetIcon("icon.ico");
 
+            var placement = Utils.DeserializePlacementOrDefault(hWnd);
+            NativeMethods.SetWindowPlacement(hWnd, ref placement);
+
             ResourceLoader loader = ResourceLoader.GetForViewIndependentUse();
             Title = loader.GetString("SettingsWindow_Title");
 
@@ -103,6 +108,9 @@ namespace Microsoft.PowerToys.Settings.UI
         private void Window_Closed(object sender, WindowEventArgs args)
         {
             App.ClearSettingsWindow();
+
+            var hWnd = WinRT.Interop.WindowNative.GetWindowHandle(this);
+            Utils.SerializePlacement(hWnd);
         }
     }
 }

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

@@ -10,6 +10,7 @@ using Microsoft.UI;
 using Microsoft.UI.Windowing;
 using Microsoft.UI.Xaml;
 using Windows.ApplicationModel.Resources;
+using Windows.Graphics;
 
 namespace Microsoft.PowerToys.Settings.UI
 {
@@ -30,6 +31,16 @@ namespace Microsoft.PowerToys.Settings.UI
             AppWindow appWindow = AppWindow.GetFromWindowId(windowId);
             appWindow.SetIcon("icon.ico");
 
+            OverlappedPresenter presenter = appWindow.Presenter as OverlappedPresenter;
+            presenter.IsResizable = false;
+            presenter.IsMinimizable = false;
+            presenter.IsMaximizable = false;
+
+            SizeInt32 size;
+            size.Width = 1650;
+            size.Height = 1050;
+            appWindow.Resize(size);
+
             this.initialModule = initialModule;
 
             ResourceLoader loader = ResourceLoader.GetForViewIndependentUse();