Added settings window.

2025-01-03 16:05:03 -08:00
parent d6e097506a
commit 83bb184fe3
13 changed files with 1162 additions and 129 deletions
@@ -0,0 +1,86 @@
+import Carbon
+import OSLog
+
+final class HotKeyManager {
+    fileprivate static let logger = Logger(
+        subsystem: Bundle.main.bundleIdentifier!,
+        //category: String(describing: HotKeyManager.self)
+        category: String(describing: AppDelegate.self)
+    )
+
+    static let shared = HotKeyManager()
+
+    private var eventType = EventTypeSpec(
+        eventClass: OSType(kEventClassKeyboard),
+        eventKind: UInt32(kEventHotKeyPressed))
+    private var eventHandlerRef: EventHandlerRef?
+    public var handler: EventHandlerUPP?
+
+    private var hotKeyRef: EventHotKeyRef?
+    private let hotKeyID: EventHotKeyID = EventHotKeyID(
+        signature: OSType("grap".fourCharCodeValue), id: 1)
+
+    private init() {}
+
+    deinit {}
+
+    // TODO: Handle errors.
+    public func enable() {
+        if eventHandlerRef != nil {
+            disable()
+        }
+
+        let err = InstallEventHandler(
+            GetApplicationEventTarget(), handler, 1, &eventType,
+            nil, &eventHandlerRef)
+        if err == noErr {
+            Self.logger.debug("Installed event handler.")
+        } else {
+            Self.logger.error("Failed to install event handler.")
+        }
+    }
+
+    public func disable() {
+        guard eventHandlerRef != nil else { return }
+        let err = RemoveEventHandler(eventHandlerRef)
+        if err == noErr {
+            eventHandlerRef = nil // WARNING: Does it remove no matter
+                                  //          what on error?
+            Self.logger.debug("Removed event handler.")
+        } else {
+            Self.logger.error("Failed to remove event handler.")
+        }
+    }
+
+    // TODO: Handle errors.
+    // NOTE: Multiple modifiers should be ORed.
+    public func registerHotKey(key: Int, modifiers: Int) {
+        // GetEventDispatcherTarget
+        if hotKeyRef != nil {
+            unregisterHotKey()
+        }
+
+        let err = RegisterEventHotKey(
+            UInt32(key), UInt32(modifiers), hotKeyID,
+            GetApplicationEventTarget(), UInt32(kEventHotKeyNoOptions),
+            &hotKeyRef)
+        if err == noErr {
+            Self.logger.debug("Registered hot key.")
+        } else {
+            Self.logger.error("Failed to register hot key.")
+        }
+    }
+
+    // TODO: Handle errors.
+    public func unregisterHotKey() {
+        guard hotKeyRef != nil else { return }
+        let err = UnregisterEventHotKey(hotKeyRef)
+        if err == noErr {
+            hotKeyRef = nil // WARNING: Does it unregister no matter
+                            //          what on error?
+            Self.logger.debug("Successfully unregestered hot key.")
+        } else {
+            Self.logger.error("Failed to unregester hot key.")
+        }
+    }
+}