Debugger - Added quick access button to main window

Debugger - Bring debugger to front if already open instead of creating a new one

src/Artemis.UI/Services/DebugService.cs

@@ -0,0 +1,62 @@
+using System.Windows;
+using Artemis.UI.Screens.Settings.Debug;
+using Artemis.UI.Services.Interfaces;
+using MaterialDesignExtensions.Controls;
+using Ninject;
+using Stylet;
+
+namespace Artemis.UI.Services
+{
+    public class DebugService : IDebugService
+    {
+        private readonly IKernel _kernel;
+        private readonly IWindowManager _windowManager;
+        private DebugViewModel _debugViewModel;
+
+        public DebugService(IKernel kernel, IWindowManager windowManager)
+        {
+            _kernel = kernel;
+            _windowManager = windowManager;
+        }
+
+        public void ShowDebugger()
+        {
+            if (_debugViewModel != null)
+                BringDebuggerToForeground();
+            else
+                CreateDebugger();
+        }
+
+        private void CreateDebugger()
+        {
+            _debugViewModel = _kernel.Get<DebugViewModel>();
+            _debugViewModel.Closed += DebugViewModelOnClosed;
+
+            _windowManager.ShowWindow(_debugViewModel);
+        }
+
+        private void DebugViewModelOnClosed(object sender, CloseEventArgs e)
+        {
+            _debugViewModel.Closed -= DebugViewModelOnClosed;
+            _debugViewModel = null;
+        }
+
+        private void BringDebuggerToForeground()
+        {
+            var materialWindow = (MaterialWindow) _debugViewModel.View;
+
+            // Not as straightforward as you might think, this ensures the window always shows, even if it's behind another window etc.
+            // https://stackoverflow.com/a/4831839/5015269
+            if (!materialWindow.IsVisible)
+                materialWindow.Show();
+
+            if (materialWindow.WindowState == WindowState.Minimized)
+                materialWindow.WindowState = WindowState.Normal;
+
+            materialWindow.Activate();
+            materialWindow.Topmost = true; // important
+            materialWindow.Topmost = false; // important
+            materialWindow.Focus();
+        }
+    }
+}