Adds support for just displaying hints (no hotkey)

README.md

@@ -14,6 +14,10 @@ To use
 2. With any window focused, press Alt + ;
 3. An overlay window will be displayed, type any of the hint characters you see.
 
+Alternatively, Hunt and Peck can be launched via the command-line or AutoHotKey by specifying `/hint`:
+```
+hap.exe /hint
+```
 
 Supported Elements
 ------------------
@@ -24,5 +28,6 @@ TODO
 Some things on the "roadmap":
 
 1. The ability to customize options, including the hotkey and hint characters.
-3. More UI Automation patterns, such as scroll or expand/collapse.
-4. "Debug" mode that displays all hints regardless of supported patterns.
+2. More UI Automation patterns, such as scroll or expand/collapse.
+3. "Debug" mode that displays all hints regardless of supported patterns.
+4. Improve performance, enumerating hints can be quite slow for "busy" windows.

src/hap/AppBootstrapper.cs

@@ -1,5 +1,7 @@
-using Autofac;
+using System.Linq;
+using Autofac;
 using Caliburn.Micro;
+using hap.Models;
 using hap.Services;
 using hap.Services.Interfaces;
 using hap.ViewModels;
@@ -23,7 +25,21 @@ public AppBootstrapper()
 
         protected override void OnStartup(object sender, StartupEventArgs e)
         {
-            DisplayRootViewFor<ShellViewModel>();
+            if (e.Args.Contains("/hint"))
+            {
+                // support headless mode
+                var providerService = _container.Resolve<IHintProviderService>();
+                var windowManager = _container.Resolve<IWindowManager>();
+                var overlayFactory = _container.Resolve<Func<HintSession, OverlayViewModel>>();
+
+                var session = providerService.EnumHints();
+                var vm = overlayFactory(session);
+                windowManager.ShowWindow(vm);
+            }
+            else
+            {
+                DisplayRootViewFor<ShellViewModel>();
+            }
         }
 
         #endregion