refactor: modularize text injection with a factory and dedicated backend implementations, including a new Wayland clipboard option.

IO/Injectors/YdotoolTextInjector.cs

@@ -0,0 +1,71 @@
+using System.Diagnostics;
+using Toak.Core;
+using Toak.Core.Interfaces;
+
+namespace Toak.IO.Injectors;
+
+/// <summary>
+/// Text injector that uses <c>ydotool</c> to type text via virtual input (works on both X11 and Wayland).
+/// </summary>
+public class YdotoolTextInjector(INotifications notifications) : ITextInjector
+{
+    private readonly INotifications _notifications = notifications;
+
+    public Task InjectTextAsync(string text)
+    {
+        Logger.LogDebug("Injecting text using ydotool...");
+        if (string.IsNullOrWhiteSpace(text)) return Task.CompletedTask;
+
+        try
+        {
+            var pInfo = new ProcessStartInfo
+            {
+                FileName = Constants.Commands.TypeYdotool,
+                Arguments = $"type \"{text.Replace("\"", "\\\"")}\"",
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+            var p = Process.Start(pInfo);
+            p?.WaitForExit();
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"[YdotoolTextInjector] Error injecting text: {ex.Message}");
+            _notifications.Notify("Injection Error", "Could not type text into window.");
+        }
+
+        return Task.CompletedTask;
+    }
+
+    public async Task<string> InjectStreamAsync(IAsyncEnumerable<string> tokenStream)
+    {
+        Logger.LogDebug("Setting up stream injection using ydotool (chunked)...");
+        var fullText = string.Empty;
+
+        try
+        {
+            await foreach (var token in tokenStream)
+            {
+                Logger.LogDebug($"Injecting token: '{token}'");
+                fullText += token;
+
+                var chunkInfo = new ProcessStartInfo
+                {
+                    FileName = Constants.Commands.TypeYdotool,
+                    Arguments = $"type \"{token.Replace("\"", "\\\"")}\"",
+                    UseShellExecute = false,
+                    CreateNoWindow = true
+                };
+                var chunkP = Process.Start(chunkInfo);
+                if (chunkP != null) await chunkP.WaitForExitAsync();
+            }
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"[YdotoolTextInjector] Error injecting text stream: {ex.Message}");
+            _notifications.Notify("Injection Error", "Could not type text stream into window.");
+        }
+
+        return fullText;
+    }
+}