Rewrote debugger events

/cc #63

Author: madskristensen

src/Community.VisualStudio.Toolkit.Shared/Events/DebuggerEvents.cs

@@ -0,0 +1,63 @@
+using System;
+using Microsoft;
+using Microsoft.VisualStudio;
+using Microsoft.VisualStudio.Shell;
+using Microsoft.VisualStudio.Shell.Interop;
+
+namespace Community.VisualStudio.Toolkit
+{
+    /// <summary>
+    /// Events related to the selection in Visusal Studio.
+    /// </summary>
+    public class DebuggerEvents : IVsDebuggerEvents
+    {
+        internal DebuggerEvents()
+        {
+            ThreadHelper.ThrowIfNotOnUIThread();
+            var svc = (IVsDebugger)ServiceProvider.GlobalProvider.GetService(typeof(IVsDebugger));
+            Assumes.Present(svc);
+            svc.AdviseDebuggerEvents(this, out _);
+        }
+
+        /// <summary>
+        /// Fires when entering break mode.
+        /// </summary>
+        public event EventHandler? EnterBreakMode;
+
+        /// <summary>
+        /// Fired when the debugger enters run mode.
+        /// </summary>
+        public event EventHandler? EnterRunMode;
+
+        /// <summary>
+        /// Fired when leaving run mode or debug mode, and when the debugger establishes design mode after debugging.
+        /// </summary>
+        public event EventHandler? EnterDesignMode;
+
+        /// <summary>
+        /// Fires when entering Edit &amp; Continue mode.
+        /// </summary>
+        public event EventHandler? EnterEditAndContinueMode;
+
+        int IVsDebuggerEvents.OnModeChange(DBGMODE dbgmodeNew)
+        {
+            switch (dbgmodeNew)
+            {
+                case DBGMODE.DBGMODE_Design:
+                    EnterDesignMode?.Invoke(this, EventArgs.Empty);
+                    break;
+                case DBGMODE.DBGMODE_Break:
+                    EnterBreakMode?.Invoke(this, EventArgs.Empty);
+                    break;
+                case DBGMODE.DBGMODE_Run:
+                    EnterRunMode?.Invoke(this, EventArgs.Empty);
+                    break;
+                case DBGMODE.DBGMODE_Enc:
+                    EnterEditAndContinueMode?.Invoke(this, EventArgs.Empty);
+                    break;
+            }
+
+            return VSConstants.S_OK;
+        }
+    }
+}

src/Community.VisualStudio.Toolkit.Shared/Events/Events.cs

@@ -32,8 +32,10 @@ internal Events()
         public CommandEvents? CommandEvents => _commandEvents ??= _events?.CommandEvents;
 
 
-        private DebuggerEvents? _debuggerEvents;
-        public DebuggerEvents? DebuggerEvents => _debuggerEvents ??= _events?.DebuggerEvents;
+        /// <summary>
+        /// Events related to the selection in Visusal Studio.
+        /// </summary>
+        public DebuggerEvents DebuggerEvents => new();
 
 
         private DebuggerExpressionEvaluationEvents? _debuggerExpressionEvaluationEvents;

src/Community.VisualStudio.Toolkit.Shared/Services/Debugger.cs

@@ -10,7 +10,7 @@ internal Debugger()
         { }
 
         /// <summary>Provides access to the current debugger so that the package can listen for debugger events.</summary>
-        public Task<IVsDebugger> GetDebuggerAsync() => VS.GetRequiredServiceAsync<SVsShell, IVsDebugger>();
+        public Task<IVsDebugger> GetDebuggerAsync() => VS.GetRequiredServiceAsync<IVsDebugger, IVsDebugger>();
 
         /// <summary>Used to launch the debugger.</summary>
         public Task<IVsDebugLaunch> GetDebugLaunchAsync() => VS.GetRequiredServiceAsync<SVsDebugLaunch, IVsDebugLaunch>();

src/Community.VisualStudio.Toolkit.Shared/VSSDK.Helpers.Shared.projitems

@@ -12,6 +12,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Commands\CommandAttribute.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Editor\WpfTextViewCreationListener.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Events\BuildEvents.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Events\DebuggerEvents.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Events\SelectionEvents.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Events\SolutionEvents.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Events\DocumentEvents.cs" />