Post a notification when a LogItem is added.

Frameworks/RSCore/RSCore/Log.swift

@@ -8,9 +8,16 @@
 
 import Foundation
 
+public extension Notification.Name {
+
+	public static let LogDidAddItem = NSNotification.Name("LogDidAddItem")
+}
+
 public class Log {
 
 	public var logItems = [LogItem]()
+	public static let logItemKey = "logItem" // userInfo key
+	private let lock = NSLock()
 
 	public init() {
 		// Satisfy compiler
@@ -18,6 +25,10 @@ public class Log {
 
 	public func add(_ logItem: LogItem) {
 
+		lock.lock()
 		logItems += [logItem]
+		lock.unlock()
+
+		NotificationCenter.default.post(name: .LogDidAddItem, object: self, userInfo: [Log.logItemKey: logItem])
 	}
 }