feat: configure a persistent global launcher shortcut

Sources/Conjure/ConjureApp.swift

@@ -1,4 +1,5 @@
 import AppKit
+import ConjureKit
 
 @main
 @MainActor
@@ -8,7 +9,7 @@ struct ConjureApp {
         let delegate = ApplicationDelegate()
         application.delegate = delegate
         application.setActivationPolicy(.regular)
-        application.mainMenu = makeMainMenu()
+        application.mainMenu = makeMainMenu(delegate: delegate)
 
         // NSApplication holds its delegate weakly.
         withExtendedLifetime(delegate) {
@@ -16,7 +17,7 @@ struct ConjureApp {
         }
     }
 
-    private static func makeMainMenu() -> NSMenu {
+    private static func makeMainMenu(delegate: ApplicationDelegate) -> NSMenu {
         let menu = NSMenu()
         let applicationItem = NSMenuItem(title: "Conjure", action: nil, keyEquivalent: "")
         let applicationMenu = NSMenu(title: "Conjure")
@@ -28,6 +29,12 @@ struct ConjureApp {
             action: #selector(NSApplication.orderFrontStandardAboutPanel(_:)),
             keyEquivalent: ""
         )
+        let settings = applicationMenu.addItem(
+            withTitle: "Settings…",
+            action: #selector(ApplicationDelegate.showSettings(_:)),
+            keyEquivalent: ","
+        )
+        settings.target = delegate
         applicationMenu.addItem(.separator())
         applicationMenu.addItem(
             withTitle: "Hide Conjure",
@@ -84,9 +91,16 @@ struct ConjureApp {
 @MainActor
 private final class ApplicationDelegate: NSObject, NSApplicationDelegate {
     private lazy var launcher = LauncherWindowController()
+    private lazy var shortcut = GlobalShortcut { [weak self] in self?.launcher.toggle() }
+    private lazy var settings = SettingsWindowController(shortcut: shortcut)
 
     func applicationDidFinishLaunching(_ notification: Notification) {
         launcher.present()
+        do {
+            try shortcut.start()
+        } catch {
+            settings.present(error: error.localizedDescription)
+        }
     }
 
     func applicationShouldHandleReopen(_ sender: NSApplication, hasVisibleWindows: Bool) -> Bool {
@@ -94,6 +108,14 @@ private final class ApplicationDelegate: NSObject, NSApplicationDelegate {
         return false
     }
 
+    @objc func showSettings(_ sender: Any?) {
+        settings.present()
+    }
+
+    func applicationWillTerminate(_ notification: Notification) {
+        shortcut.stop()
+    }
+
     func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
         false
     }