Implement Semi Design theme for page-based navigation controls (ContentPage / DrawerPage / NavigationPage / TabbedPage) (#766)

* Initial plan * Implement Semi Design theme for ContentPage, DrawerPage, NavigationPage, TabbedPage Co-authored-by: zdpcdt <54255897+zdpcdt@users.noreply.github.com> * fix: bind ItemsSource to Pages in TabControl of TabbedPage. * chore: split demo navigation pages. * demo: improve NavigationPage demo pages with interactive controls Co-authored-by: zdpcdt <54255897+zdpcdt@users.noreply.github.com> * fix: use comma-separated Padding syntax and remove trailing newline Co-authored-by: zdpcdt <54255897+zdpcdt@users.noreply.github.com> * feat: implement semi design theme for navigation controls in demo pages. * feat: enhance demo pages with foreground color for better visibility * feat: add back button visibility control and improve navigation page layout. * chore: remove DrawerPage unused static resources. * feat: add HighContrast resources for ContentPage, DrawerPage, NavigationPage, TabbedPage Co-authored-by: zdpcdt <54255897+zdpcdt@users.noreply.github.com> * feat: implement CardTabbedPage & ButtonTabbedPage themes. --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: zdpcdt <54255897+zdpcdt@users.noreply.github.com> Co-authored-by: Dong Bin <popmessiah@hotmail.com>
2026-04-29 04:33:22 +08:00 · 2026-03-15 03:37:50 +08:00
parent 141eeefd2e
commit 1d59cff87d
35 changed files with 1133 additions and 0 deletions
--- a/demo/Semi.Avalonia.Demo/Pages/TabbedPageDemo.axaml.cs
+++ b/demo/Semi.Avalonia.Demo/Pages/TabbedPageDemo.axaml.cs
@@ -0,0 +1,84 @@
+using System.Collections;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Media;
+
+namespace Semi.Avalonia.Demo.Pages;
+
+public partial class TabbedPageDemo : UserControl
+{
+    private int _tabCounter = 3;
+
+    public TabbedPageDemo()
+    {
+        InitializeComponent();
+    }
+
+    private void OnAddTab(object? sender, RoutedEventArgs e)
+    {
+        var idx = ++_tabCounter;
+        var page = new ContentPage
+        {
+            Header = $"Tab {idx}",
+            Content = new StackPanel
+            {
+                Margin = new Thickness(16),
+                Spacing = 8,
+                Children =
+                {
+                    new TextBlock
+                    {
+                        Text = $"Tab {idx}",
+                        FontSize = 24,
+                        FontWeight = FontWeight.Bold,
+                    },
+                    new TextBlock
+                    {
+                        Text = $"This tab was added dynamically (tab #{idx}).",
+                        Opacity = 0.7,
+                        TextWrapping = TextWrapping.Wrap,
+                    }
+                }
+            }
+        };
+
+        ((IList)DemoTabs.Pages!).Add(page);
+        UpdateStatus();
+    }
+
+    private void OnRemoveTab(object? sender, RoutedEventArgs e)
+    {
+        var pages = (IList)DemoTabs.Pages!;
+        if (pages.Count > 1)
+        {
+            pages.RemoveAt(pages.Count - 1);
+            UpdateStatus();
+        }
+    }
+
+    private void OnPlacementChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        if (DemoTabs == null) return;
+        DemoTabs.TabPlacement = PlacementCombo.SelectedIndex switch
+        {
+            1 => TabPlacement.Bottom,
+            2 => TabPlacement.Left,
+            3 => TabPlacement.Right,
+            _ => TabPlacement.Top
+        };
+    }
+
+    private void OnSelectionChanged(object? sender, PageSelectionChangedEventArgs e)
+    {
+        UpdateStatus();
+    }
+
+    private void UpdateStatus()
+    {
+        if (StatusText == null) return;
+        var pages = (IList)DemoTabs.Pages!;
+        var pageName = (DemoTabs.SelectedPage as ContentPage)?.Header?.ToString() ?? "—";
+        StatusText.Text = $"{pages.Count} tab{(pages.Count != 1 ? "s" : "")} | Selected: {pageName} ({DemoTabs.SelectedIndex})";
+    }
+}