Initial FocusFixer implementation

Menu-bar utility that fixes cross-display keyboard focus loss: a listen-only CGEvent tap locates the window under the cursor and reasserts app activation + AX focus on it, with debounce, tap auto-recovery, and an Accessibility permission gate. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-10 12:02:29 +02:00
commit 561a547b70
18 changed files with 1411 additions and 0 deletions
@@ -0,0 +1,54 @@
+import Foundation
+
+/// UserDefaults-backed settings for FocusFixer.
+final class Preferences {
+    static let shared = Preferences()
+
+    private enum Key {
+        static let enabled = "enabled"
+        static let excludedBundleIDs = "excludedBundleIDs"
+        static let debounceIntervalMS = "debounceIntervalMS"
+    }
+
+    private static let defaultDebounceIntervalMS = 150
+
+    private let defaults: UserDefaults
+
+    init(defaults: UserDefaults = .standard) {
+        self.defaults = defaults
+        defaults.register(defaults: [
+            Key.enabled: true,
+            Key.excludedBundleIDs: [String](),
+            Key.debounceIntervalMS: Self.defaultDebounceIntervalMS
+        ])
+    }
+
+    var isEnabled: Bool {
+        get { defaults.bool(forKey: Key.enabled) }
+        set { defaults.set(newValue, forKey: Key.enabled) }
+    }
+
+    var excludedBundleIDs: Set<String> {
+        get { Set(defaults.stringArray(forKey: Key.excludedBundleIDs) ?? []) }
+        set { defaults.set(Array(newValue), forKey: Key.excludedBundleIDs) }
+    }
+
+    var debounceInterval: TimeInterval {
+        get { TimeInterval(defaults.integer(forKey: Key.debounceIntervalMS)) / 1000.0 }
+        set { defaults.set(Int(newValue * 1000), forKey: Key.debounceIntervalMS) }
+    }
+
+    func isExcluded(bundleID: String) -> Bool {
+        excludedBundleIDs.contains(bundleID)
+    }
+
+    func setExcluded(_ excluded: Bool, bundleID: String) {
+        var ids = excludedBundleIDs
+        if excluded {
+            ids.insert(bundleID)
+        } else {
+            ids.remove(bundleID)
+        }
+        excludedBundleIDs = ids
+    }
+}