NSEvent 대신 CGEvent로 마우스 클릭 감지

kiding · kiding · commit 0d4bb0ae26f8 · 2025-01-06T03:54:19.000+09:00
Sublime Merge 등 조합 중 클릭하면 입력하던 글자가 유실되는 문제 해결 c93d638 3450c50 참고
diff --git a/SokIM/AppDelegate.swift b/SokIM/AppDelegate.swift
@@ -22,6 +22,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 
     let statusBar = StatusBar()
     let inputMonitor = InputMonitor()
+    let clickMonitor = ClickMonitor()
 
     private var eventHandlerRef: EventHandlerRef?
     private var eventHotKeyRef: EventHotKeyRef?
@@ -42,11 +43,6 @@ class AppDelegate: NSObject, NSApplicationDelegate {
             object: nil
         )
 
-        // 사용자가 마우스 클릭하는 시점에 초기화
-        NSEvent.addGlobalMonitorForEvents(matching: .leftMouseDown.union(.rightMouseDown).union(.otherMouseDown)) { _ in
-            self.reset()
-        }
-
         // 사용자의 한/A 전환키 조합을 시스템에 등록, 더미 함수 호출
         var eventSpec = EventTypeSpec(eventClass: OSType(kEventClassKeyboard), eventKind: UInt32(kEventHotKeyPressed))
         InstallEventHandler(GetApplicationEventTarget(), eventHotKeyHandler, 1, &eventSpec, nil, &eventHandlerRef)
@@ -105,6 +101,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         do {
             notice("모니터 시작 중...")
             try inputMonitor.start()
+            try clickMonitor.start()
             statusBar.setStatus("⌨️")
             statusBar.removeMessage()
         } catch {
@@ -122,6 +119,8 @@ class AppDelegate: NSObject, NSApplicationDelegate {
             notice("모니터 재시작 중...")
             inputMonitor.stop()
             try inputMonitor.start()
+            clickMonitor.stop()
+            try clickMonitor.start()
         } catch {
             warning("\(error)")
             self.perform(#selector(restartMonitorSilently), with: aNotification, afterDelay: 1)
diff --git a/SokIM/ClickMonitor.swift b/SokIM/ClickMonitor.swift
@@ -0,0 +1,86 @@
+import QuartzCore
+
+enum ClickMonitorError: Error, CustomStringConvertible {
+    case failedToCreateTap
+    case failedToCreateSource
+
+    var description: String {
+        switch self {
+        case .failedToCreateTap:
+            "알 수 없는 오류가 발생했습니다. (tap)"
+        case .failedToCreateSource:
+            "알 수 없는 오류가 발생했습니다. (source)"
+        }
+    }
+}
+
+/**
+ 마우스 클릭 모니터링
+ @see https://github.com/pqrs-org/Karabiner-Elements/blob/main/DEVELOPMENT.md
+ @see https://github.com/pqrs-org/Karabiner-Elements/blob/main/src/share/monitor/event_tap_monitor.hpp
+ */
+class ClickMonitor {
+    private var tap: CFMachPort?
+    private var source: CFRunLoopSource?
+
+    func start() throws {
+        debug()
+
+        if tap != nil || source != nil {
+            warning("초기화된 tap 또는 source가 이미 있음")
+            return
+        }
+
+        let tap = CGEvent.tapCreate(
+            tap: .cghidEventTap,
+            place: .headInsertEventTap,
+            options: .listenOnly,
+            eventsOfInterest: CGEventMask(
+                1 << CGEventType.leftMouseDown.rawValue
+                | 1 << CGEventType.rightMouseDown.rawValue
+                | 1 << CGEventType.otherMouseDown.rawValue),
+            callback: { _, _, event, _ in
+                // 사용자가 마우스 클릭하는 시점에 초기화
+                AppDelegate.shared().reset()
+                return Unmanaged.passUnretained(event)
+            },
+            userInfo: nil
+        )
+        guard let tap else {
+            throw ClickMonitorError.failedToCreateTap
+        }
+
+        let source = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, tap, 0)
+        guard let source else {
+            throw ClickMonitorError.failedToCreateSource
+        }
+
+        CFRunLoopAddSource(CFRunLoopGetMain(), source, .defaultMode)
+        CGEvent.tapEnable(tap: tap, enable: true)
+
+        self.tap = tap
+        self.source = source
+        debug("ClickMonitor 시작 성공")
+    }
+
+    func stop() {
+        debug()
+
+        if let tap {
+            CGEvent.tapEnable(tap: tap, enable: false)
+            CFMachPortInvalidate(tap)
+        } else {
+            warning("초기화된 tap이 없음")
+        }
+
+        if let source {
+            CFRunLoopSourceInvalidate(source)
+        } else {
+            warning("초기화된 source가 없음")
+        }
+
+        self.tap = nil
+        self.source = nil
+        debug("ClickMonitor 중단 성공")
+    }
+}
