feat: navigate launcher results with control-j and control-k

README.md

@@ -22,7 +22,7 @@ Open `Package.swift` in Xcode to edit the project. Use the bundled app above to
 ## Controls
 
 - Type to filter applications; the first match is selected automatically.
-- Up/Down changes the selection without leaving search.
+- Up/Down or Control-K/Control-J changes the selection without leaving search or modifying its text.
 - Return, keypad Enter, the Open Application button, or a double-click opens the selection.
 - Escape, Command-W, or switching focus away dismisses the launcher.
 - Reopen from Finder or the Dock to show it again with an empty search. Dismissal leaves the process running; Command-Q quits it.

Sources/Conjure/LauncherWindowController.swift

@@ -32,6 +32,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         super.init(window: window)
         configureContent(in: window)
         window.delegate = self
+        window.navigateSelection = { [weak self] offset in self?.moveSelection(by: offset) }
     }
 
     required init?(coder: NSCoder) {
@@ -390,6 +391,24 @@ private final class ApplicationTableView: NSTableView {
 private final class LauncherPanel: NSPanel {
     override var canBecomeKey: Bool { true }
     override var canBecomeMain: Bool { true }
+    var navigateSelection: ((Int) -> Void)?
+
+    override func sendEvent(_ event: NSEvent) {
+        if event.type == .keyDown, attachedSheet == nil,
+           event.modifierFlags.intersection([.control, .command, .option, .shift]) == .control {
+            switch event.charactersIgnoringModifiers?.lowercased() {
+            case "j":
+                navigateSelection?(1)
+                return
+            case "k":
+                navigateSelection?(-1)
+                return
+            default:
+                break
+            }
+        }
+        super.sendEvent(event)
+    }
 
     override func performClose(_ sender: Any?) {
         close()