feat(notification): replace MessageBox with toast notifications (#25)

Add Windows toast notifications as an alternative to MessageBox for
breakpoint hit notifications. Users can now choose their preferred
notification style via Tools > Options > Breakpoint Notifier > General.

- Add Microsoft.Toolkit.Uwp.Notifications package
- Create Options page with NotificationStyle setting (MessageBox/Toast/Both)
- Default to Toast for less intrusive notifications

Closes #4

Author: CalvinAllen

src/CodingWithCalvin.BreakpointNotifier/BreakpointNotifierPackage.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Runtime.InteropServices;
 using System.Threading;
+using CodingWithCalvin.BreakpointNotifier.Options;
 using CodingWithCalvin.Otel4Vsix;
 using Microsoft.VisualStudio.Shell;
 using Microsoft.VisualStudio.Shell.Interop;
@@ -12,6 +13,7 @@ namespace CodingWithCalvin.BreakpointNotifier
     [InstalledProductRegistration(Vsix.Name, Vsix.Description, Vsix.Version)]
     [Guid("136f3004-4048-4dd9-bd6d-7ff910b2c900")]
     [ProvideAutoLoad(UIContextGuids80.SolutionExists, PackageAutoLoadFlags.BackgroundLoad)]
+    [ProvideOptionPage(typeof(GeneralOptions), "Breakpoint Notifier", "General", 0, 0, true)]
     public sealed class BreakpointNotifierPackage : AsyncPackage
     {
         protected override async Task InitializeAsync(
@@ -35,7 +37,7 @@ IProgress<ServiceProgressData> progress
 
             builder.Initialize();
 
-            DebuggerEvents.Initialize();
+            DebuggerEvents.Initialize(this);
         }
 
         protected override void Dispose(bool disposing)

src/CodingWithCalvin.BreakpointNotifier/CodingWithCalvin.BreakpointNotifier.csproj

@@ -10,6 +10,7 @@
 
   <ItemGroup>
     <PackageReference Include="CodingWithCalvin.Otel4Vsix" Version="0.2.2" />
+    <PackageReference Include="Microsoft.Toolkit.Uwp.Notifications" Version="7.*" />
     <PackageReference Include="Microsoft.VisualStudio.SDK" Version="17.14.40265" />
     <PackageReference Include="Microsoft.VSSDK.BuildTools" Version="17.*" PrivateAssets="all" />
   </ItemGroup>

src/CodingWithCalvin.BreakpointNotifier/DebuggerEvents.cs

@@ -1,8 +1,10 @@
 using System;
 using System.Collections.Generic;
 using System.Windows.Forms;
+using CodingWithCalvin.BreakpointNotifier.Options;
 using CodingWithCalvin.Otel4Vsix;
 using Microsoft;
+using Microsoft.Toolkit.Uwp.Notifications;
 using Microsoft.VisualStudio;
 using Microsoft.VisualStudio.Debugger.Interop;
 using Microsoft.VisualStudio.Shell;
@@ -12,20 +14,24 @@ namespace CodingWithCalvin.BreakpointNotifier
 {
     public sealed class DebuggerEvents : IVsDebuggerEvents, IDebugEventCallback2
     {
-        private DebuggerEvents()
+        private readonly BreakpointNotifierPackage _package;
+
+        private DebuggerEvents(BreakpointNotifierPackage package)
         {
             ThreadHelper.ThrowIfNotOnUIThread();
 
+            _package = package;
+
             var debugger = (IVsDebugger)
                 ServiceProvider.GlobalProvider.GetService(typeof(IVsDebugger));
             Assumes.Present(debugger);
             debugger.AdviseDebuggerEvents(this, out _);
             debugger.AdviseDebugEventCallback(this);
         }
 
-        public static DebuggerEvents Initialize()
+        public static DebuggerEvents Initialize(BreakpointNotifierPackage package)
         {
-            return new DebuggerEvents();
+            return new DebuggerEvents(package);
         }
 
         public int OnModeChange(DBGMODE dbgmodeNew)
@@ -43,14 +49,16 @@ public int Event(
             ref Guid riidEvent,
             uint dwAttrib)
         {
+            ThreadHelper.ThrowIfNotOnUIThread();
+
             if (pEvent is IDebugBreakpointEvent2)
             {
                 using var activity = VsixTelemetry.StartCommandActivity("BreakpointNotifier.BreakpointHit");
 
                 try
                 {
                     VsixTelemetry.LogInformation("Breakpoint hit detected");
-                    MessageBox.Show("Breakpoint Hit!");
+                    ShowNotification();
                 }
                 catch (Exception ex)
                 {
@@ -64,5 +72,32 @@ public int Event(
 
             return VSConstants.S_OK;
         }
+
+        private void ShowNotification()
+        {
+            ThreadHelper.ThrowIfNotOnUIThread();
+
+            var style = GetNotificationStyle();
+
+            if (style == NotificationStyle.MessageBox || style == NotificationStyle.Both)
+            {
+                MessageBox.Show("Breakpoint Hit!");
+            }
+
+            if (style == NotificationStyle.Toast || style == NotificationStyle.Both)
+            {
+                new ToastContentBuilder()
+                    .AddText("Breakpoint Hit!")
+                    .Show();
+            }
+        }
+
+        private NotificationStyle GetNotificationStyle()
+        {
+            ThreadHelper.ThrowIfNotOnUIThread();
+
+            var options = _package.GetDialogPage(typeof(GeneralOptions)) as GeneralOptions;
+            return options?.Style ?? NotificationStyle.Toast;
+        }
     }
 }

src/CodingWithCalvin.BreakpointNotifier/Options/GeneralOptions.cs

@@ -0,0 +1,27 @@
+using System.ComponentModel;
+using System.Runtime.InteropServices;
+using Microsoft.VisualStudio.Shell;
+
+namespace CodingWithCalvin.BreakpointNotifier.Options
+{
+    public enum NotificationStyle
+    {
+        [Description("Message Box")]
+        MessageBox,
+
+        [Description("Toast Notification")]
+        Toast,
+
+        [Description("Both")]
+        Both
+    }
+
+    [ComVisible(true)]
+    public class GeneralOptions : DialogPage
+    {
+        [Category("Notification")]
+        [DisplayName("Notification Style")]
+        [Description("Choose how breakpoint notifications are displayed. Toast notifications are less intrusive and don't steal focus.")]
+        public NotificationStyle Style { get; set; } = NotificationStyle.Toast;
+    }
+}