1 files changed, 28 insertions, 0 deletions
diff --git a/Sources/WireGuardApp/UI/macOS/LaunchedAtLoginDetector.swift b/Sources/WireGuardApp/UI/macOS/LaunchedAtLoginDetector.swift
new file mode 100644
index 0000000..0d8e3d8
--- /dev/null
+++ b/Sources/WireGuardApp/UI/macOS/LaunchedAtLoginDetector.swift
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: MIT
+// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
+
+import Cocoa
+
+class LaunchedAtLoginDetector {
+    static let launchCode = "LaunchedByWireGuardLoginItemHelper"
+
+    static func isLaunchedAtLogin(openAppleEvent: NSAppleEventDescriptor) -> Bool {
+        guard isOpenEvent(openAppleEvent) else { return false }
+        guard let propData = openAppleEvent.paramDescriptor(forKeyword: keyAEPropData) else { return false }
+        return propData.stringValue == launchCode
+    }
+
+    static func isReopenedByLoginItemHelper(reopenAppleEvent: NSAppleEventDescriptor) -> Bool {
+        guard isReopenEvent(reopenAppleEvent) else { return false }
+        guard let propData = reopenAppleEvent.paramDescriptor(forKeyword: keyAEPropData) else { return false }
+        return propData.stringValue == launchCode
+    }
+}
+
+private func isOpenEvent(_ event: NSAppleEventDescriptor) -> Bool {
+    return event.eventClass == kCoreEventClass && event.eventID == kAEOpenApplication
+}
+
+private func isReopenEvent(_ event: NSAppleEventDescriptor) -> Bool {
+    return event.eventClass == kCoreEventClass && event.eventID == kAEReopenApplication
+}