feat: search dialog to navigate app

2026-09-04 23:34:10 +02:00 · 2026-04-20 17:42:04 +02:00
parent 3091a146eb
commit aa6599a4e0
3 changed files with 293 additions and 1 deletions
@@ -0,0 +1,160 @@
+using EchoHub.Client.UI.ListSources;
+
+using System.Collections;
+using System.Collections.Specialized;
+using System.Diagnostics;
+
+using Terminal.Gui.App;
+using Terminal.Gui.Drawing;
+using Terminal.Gui.Input;
+using Terminal.Gui.Text;
+using Terminal.Gui.ViewBase;
+using Terminal.Gui.Views;
+
+namespace EchoHub.Client.UI.Dialogs;
+
+public enum SearchResultType
+{
+    Channel,
+    Action
+}
+
+public record SearchResult(SearchResultType Type, string Key, string Label);
+
+/// <summary>
+/// Command-palette style search dialog (Ctrl+K) for navigating channels and triggering app actions.
+/// </summary>
+public static class SearchDialog
+{
+    private static readonly IReadOnlyList<SearchResult> DefaultActions = [
+        new(SearchResultType.Action, "connect",        "Connect to Server"),
+        new(SearchResultType.Action, "disconnect",     "Disconnect"),
+        new(SearchResultType.Action, "logout",         "Logout"),
+        new(SearchResultType.Action, "profile",        "My Profile"),
+        new(SearchResultType.Action, "status",         "Set Status"),
+        new(SearchResultType.Action, "create-channel", "Create Channel"),
+        new(SearchResultType.Action, "delete-channel", "Delete Channel"),
+        new(SearchResultType.Action, "servers",        "Saved Servers"),
+        new(SearchResultType.Action, "toggle-users",   "Toggle Users Panel"),
+        new(SearchResultType.Action, "updates",        "Check for Updates"),
+        new(SearchResultType.Action, "quit",           "Quit"),
+    ];
+
+    public static SearchResult? Show(IApplication app, IReadOnlyList<string> channels)
+    {
+        SearchResult? result = null;
+        var source = new SearchListSource(BuildAllItems(channels));
+
+        var dialog = new Dialog
+        {
+            Title = "Search",
+            Width = 59,
+            Height = 22,
+        };
+
+        var hintLabel = new Label
+        {
+            Text = "Channels and actions \u2502 \u2193 to navigate \u2502 Enter to select",
+            X = 1,
+            Y = 1,
+        };
+
+        var searchField = new TextField
+        {
+            X = 1,
+            Y = 2,
+            Title = "Search",
+            Width = Dim.Fill(2),
+        };
+
+        var resultList = new ListView
+        {
+            X = 1,
+            Y = 4,
+            Width = Dim.Fill(2),
+            Height = Dim.Fill(3),
+            Source = source
+        };
+
+        var cancelButton = new Button
+        {
+            Text = "Cancel",
+            X = Pos.Center(),
+            Y = Pos.AnchorEnd(1),
+        };
+
+        if (source.Count > 0)
+            resultList.SelectedItem = 0;
+
+        searchField.KeyDown += (s, e) =>
+        {
+            if (e.KeyCode == Key.K.WithCtrl)
+            {
+                e.Handled = true;
+                app.RequestStop();
+            }
+        };
+
+        searchField.TextChanged += (s, e) =>
+        {
+            source.Filter(searchField.Text ?? string.Empty);
+            resultList.Source = source;
+            if (source.Count > 0)
+                resultList.SelectedItem = 0;
+        };
+
+        searchField.Accepting += (s, e) => TryConfirm(e);
+
+        resultList.Accepting += (s, e) => TryConfirm(e);
+
+        resultList.KeystrokeNavigator.SearchStringChanged += (s, e) =>
+        {
+            app.Invoke(() =>
+            {
+                searchField.SetFocus();
+            });
+        };
+
+        cancelButton.Accepting += (s, e) =>
+        {
+            result = null;
+            e.Handled = true;
+            app.RequestStop();
+        };
+
+        dialog.KeyDown += (s, e) =>
+        {
+            if (e.KeyCode == Key.K.WithCtrl)
+            {
+                e.Handled = true;
+                app.RequestStop();
+            }
+        };
+
+        dialog.Add(hintLabel, searchField, resultList, cancelButton);
+        searchField.SetFocus();
+        app.Run(dialog);
+
+        return result;
+
+        void TryConfirm(CommandEventArgs e)
+        {
+            var idx = resultList.SelectedItem ?? 0;
+            if (source.Count > 0 && idx >= 0 && idx < source.Count)
+            {
+                result = source.GetItem(idx);
+                e.Handled = true;
+                app.RequestStop();
+            }
+        }
+    }
+
+    private static List<SearchResult> BuildAllItems(IReadOnlyList<string> channels)
+    {
+        var items = new List<SearchResult>();
+        foreach (var ch in channels)
+            items.Add(new SearchResult(SearchResultType.Channel, ch, $"#{ch}"));
+        items.AddRange(DefaultActions);
+        return items;
+    }
+}