Add chapter 10 sample project

2026-06-20 12:23:09 +00:00 · 2023-08-13 13:40:04 -04:00
parent f9e4d407b9
commit 90f935f4b2
91 changed files with 4110 additions and 0 deletions
@@ -0,0 +1,121 @@
+using System.Runtime.InteropServices;
+
+using Microsoft.UI;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Media;
+
+using Windows.UI;
+using Windows.UI.ViewManagement;
+
+namespace TemplateStudioSampleApp.Helpers;
+
+// Helper class to workaround custom title bar bugs.
+// DISCLAIMER: The resource key names and color values used below are subject to change. Do not depend on them.
+// https://github.com/microsoft/TemplateStudio/issues/4516
+internal class TitleBarHelper
+{
+    private const int WAINACTIVE = 0x00;
+    private const int WAACTIVE = 0x01;
+    private const int WMACTIVATE = 0x0006;
+
+    [DllImport("user32.dll")]
+    private static extern IntPtr GetActiveWindow();
+
+    [DllImport("user32.dll", CharSet = CharSet.Auto)]
+    private static extern IntPtr SendMessage(IntPtr hWnd, int msg, int wParam, IntPtr lParam);
+
+    public static void UpdateTitleBar(ElementTheme theme)
+    {
+        if (App.MainWindow.ExtendsContentIntoTitleBar)
+        {
+            if (theme == ElementTheme.Default)
+            {
+                var uiSettings = new UISettings();
+                var background = uiSettings.GetColorValue(UIColorType.Background);
+
+                theme = background == Colors.White ? ElementTheme.Light : ElementTheme.Dark;
+            }
+
+            if (theme == ElementTheme.Default)
+            {
+                theme = Application.Current.RequestedTheme == ApplicationTheme.Light ? ElementTheme.Light : ElementTheme.Dark;
+            }
+
+            Application.Current.Resources["WindowCaptionForeground"] = theme switch
+            {
+                ElementTheme.Dark => new SolidColorBrush(Colors.White),
+                ElementTheme.Light => new SolidColorBrush(Colors.Black),
+                _ => new SolidColorBrush(Colors.Transparent)
+            };
+
+            Application.Current.Resources["WindowCaptionForegroundDisabled"] = theme switch
+            {
+                ElementTheme.Dark => new SolidColorBrush(Color.FromArgb(0x66, 0xFF, 0xFF, 0xFF)),
+                ElementTheme.Light => new SolidColorBrush(Color.FromArgb(0x66, 0x00, 0x00, 0x00)),
+                _ => new SolidColorBrush(Colors.Transparent)
+            };
+
+            Application.Current.Resources["WindowCaptionButtonBackgroundPointerOver"] = theme switch
+            {
+                ElementTheme.Dark => new SolidColorBrush(Color.FromArgb(0x33, 0xFF, 0xFF, 0xFF)),
+                ElementTheme.Light => new SolidColorBrush(Color.FromArgb(0x33, 0x00, 0x00, 0x00)),
+                _ => new SolidColorBrush(Colors.Transparent)
+            };
+
+            Application.Current.Resources["WindowCaptionButtonBackgroundPressed"] = theme switch
+            {
+                ElementTheme.Dark => new SolidColorBrush(Color.FromArgb(0x66, 0xFF, 0xFF, 0xFF)),
+                ElementTheme.Light => new SolidColorBrush(Color.FromArgb(0x66, 0x00, 0x00, 0x00)),
+                _ => new SolidColorBrush(Colors.Transparent)
+            };
+
+            Application.Current.Resources["WindowCaptionButtonStrokePointerOver"] = theme switch
+            {
+                ElementTheme.Dark => new SolidColorBrush(Colors.White),
+                ElementTheme.Light => new SolidColorBrush(Colors.Black),
+                _ => new SolidColorBrush(Colors.Transparent)
+            };
+
+            Application.Current.Resources["WindowCaptionButtonStrokePressed"] = theme switch
+            {
+                ElementTheme.Dark => new SolidColorBrush(Colors.White),
+                ElementTheme.Light => new SolidColorBrush(Colors.Black),
+                _ => new SolidColorBrush(Colors.Transparent)
+            };
+
+            Application.Current.Resources["WindowCaptionBackground"] = new SolidColorBrush(Colors.Transparent);
+            Application.Current.Resources["WindowCaptionBackgroundDisabled"] = new SolidColorBrush(Colors.Transparent);
+
+            var hwnd = WinRT.Interop.WindowNative.GetWindowHandle(App.MainWindow);
+            if (hwnd == GetActiveWindow())
+            {
+                SendMessage(hwnd, WMACTIVATE, WAINACTIVE, IntPtr.Zero);
+                SendMessage(hwnd, WMACTIVATE, WAACTIVE, IntPtr.Zero);
+            }
+            else
+            {
+                SendMessage(hwnd, WMACTIVATE, WAACTIVE, IntPtr.Zero);
+                SendMessage(hwnd, WMACTIVATE, WAINACTIVE, IntPtr.Zero);
+            }
+        }
+    }
+
+    public static void ApplySystemThemeToCaptionButtons()
+    {
+        var res = Application.Current.Resources;
+        var frame = App.AppTitlebar as FrameworkElement;
+        if (frame != null)
+        {
+            if (frame.ActualTheme == ElementTheme.Dark)
+            {
+                res["WindowCaptionForeground"] = Colors.White;
+            }
+            else
+            {
+                res["WindowCaptionForeground"] = Colors.Black;
+            }
+
+            UpdateTitleBar(frame.ActualTheme);
+        }
+    }
+}