Avalonia/samples/ControlCatalog/Pages/DrawerPage/DrawerPageNavigationPage.xaml.cs

using Avalonia.Controls;
using Avalonia.Interactivity;

namespace ControlCatalog.Pages
{
    public partial class DrawerPageNavigationPage : UserControl
    {
        private static readonly (string Name, string Icon, string Title, string Content)[] Sections =
        {
            ("Home", "M10,20V14H14V20H19V12H22L12,3L2,12H5V20H10Z",
             "Home",
             "Welcome back! Here is your dashboard with recent activity, quick actions, and personalized content just for you."),
            ("Inbox", "M20,8L12,13L4,8V6L12,11L20,6M20,4H4C2.89,4 2,4.89 2,6V18A2,2 0 0,0 4,20H20A2,2 0 0,0 22,18V6C22,4.89 21.1,4 20,4Z",
             "Inbox",
             "Your recent messages are displayed here. Tap on a conversation to view details and reply."),
            ("Sent", "M3,4H21V8H3V4M3,10H21V14H3V10M3,16H21V20H3V16Z",
             "Sent Messages",
             "View all messages you have sent. They are organized by date with the most recent at the top."),
            ("Settings", "M12,15.5A3.5,3.5 0 0,1 8.5,12A3.5,3.5 0 0,1 12,8.5A3.5,3.5 0 0,1 15.5,12A3.5,3.5 0 0,1 12,15.5M19.43,12.97C19.47,12.65 19.5,12.33 19.5,12C19.5,11.67 19.47,11.34 19.43,11L21.54,9.37C21.73,9.22 21.78,8.95 21.66,8.73L19.66,5.27C19.54,5.05 19.27,4.96 19.05,5.05L16.56,6.05C16.04,5.66 15.5,5.32 14.87,5.07L14.5,2.42C14.46,2.18 14.25,2 14,2H10C9.75,2 9.54,2.18 9.5,2.42L9.13,5.07C8.5,5.32 7.96,5.66 7.44,6.05L4.95,5.05C4.73,4.96 4.46,5.05 4.34,5.27L2.34,8.73C2.21,8.95 2.27,9.22 2.46,9.37L4.57,11C4.53,11.34 4.5,11.67 4.5,12C4.5,12.33 4.53,12.65 4.57,12.97L2.46,14.63C2.27,14.78 2.21,15.05 2.34,15.27L4.34,18.73C4.46,18.95 4.73,19.04 4.95,18.95L7.44,17.94C7.96,18.34 8.5,18.68 9.13,18.93L9.5,21.58C9.54,21.82 9.75,22 10,22H14C14.25,22 14.46,21.82 14.5,21.58L14.87,18.93C15.5,18.68 16.04,18.34 16.56,17.94L19.05,18.95C19.27,19.04 19.54,18.95 19.66,18.73L21.66,15.27C21.78,15.05 21.73,14.78 21.54,14.63L19.43,12.97Z",
             "Settings",
             "Configure application preferences and options. Changes are saved automatically."),
        };

        private int _pageCount;

        public DrawerPageNavigationPage()
        {
            InitializeComponent();
            Loaded += OnLoaded;
        }

        private async void OnLoaded(object? sender, RoutedEventArgs e)
        {
            await DetailNav.PushAsync(
                NavigationDemoHelper.MakeSectionPage(Sections[0].Name, Sections[0].Icon, Sections[0].Title, Sections[0].Content, 0,
                    "Tip: drag from the left edge to open the menu, or use the hamburger button."), null);
        }

        private async void OnMenuSelectionChanged(object? sender, SelectionChangedEventArgs e)
        {
            if (DrawerMenu.SelectedIndex < 0) return;
            var index = DrawerMenu.SelectedIndex;
            var section = Sections[index];

            _pageCount++;
            await DetailNav.ReplaceAsync(
                NavigationDemoHelper.MakeSectionPage(section.Name, section.Icon, section.Title, section.Content, _pageCount,
                    "Tip: drag from the left edge to open the menu, or use the hamburger button."), null);
            DemoDrawer.IsOpen = false;
        }
    }
}