我正在编写一个xcode插件，我遇到了麻烦。
在Xcode项目导航器中右键单击源文件时，我创建了一个菜单项名称“Show in xcBuddy”，例如：
right click menu with "Show In xcBuddy"
但我不知道哪个源文件或组。 我试图在右键单击时发布通知，但与此无关。 print notification.name和[notification.object class]：
2016-02-15 14:15:44.960 Xcode[17890:649133] NSMenuDidBeginTrackingNotification, NSMenu
2016-02-15 14:15:44.960 Xcode[17890:649133] NSMenuDidBeginTrackingNotification, NSMenu
2016-02-15 14:15:44.966 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.966 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.967 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.967 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.967 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.967 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.967 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.967 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.967 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.968 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.968 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.968 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.968 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.968 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.968 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.969 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.970 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.970 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:44.970 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.051 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.054 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.055 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.056 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.057 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.057 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.058 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.058 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.058 Xcode[17890:649133] NSMenuDidAddItemNotification, NSMenu
2016-02-15 14:15:45.067 Xcode[17890:649133] NSMenuDidChangeItemNotification, NSMenu
2016-02-15 14:15:45.067 Xcode[17890:649133] NSMenuDidChangeItemNotification, NSMenu
2016-02-15 14:15:45.068 Xcode[17890:649133] NSMenuDidChangeItemNotification, NSMenu
2016-02-15 14:15:45.068 Xcode[17890:649133] NSMenuDidChangeItemNotification, NSMenu
2016-02-15 14:15:55.052 Xcode[17890:649266] NSThreadWillExitNotification, NSThread
2016-02-15 14:15:55.097 Xcode[17890:649258] NSThreadWillExitNotification, NSThread
2016-02-15 14:16:00.701 Xcode[17890:649133] NSMenuDidEndTrackingNotification, NSMenu
2016-02-15 14:16:00.701 Xcode[17890:649133] NSMenuDidEndTrackingNotification, NSMenu
2016-02-15 14:16:00.703 Xcode[17890:649133] NSMenuDidCompleteInteractionNotification, NSMenu
2016-02-15 14:16:00.703 Xcode[17890:649133] NSMenuDidCompleteInteractionNotification, NSMenu
2016-02-15 14:16:00.712 Xcode[17890:649133] NSApplicationWillUpdateNotification, IDEApplication
2016-02-15 14:16:00.712 Xcode[17890:649133] NSWindowDidUpdateNotification, IDEWorkspaceWindow