Add a SmartFeedType to smart feeds so the sidebar can tell them apart.

Mac/MainWindow/MainWindowController.swift

@@ -455,7 +455,7 @@ extension MainWindowController: NSSearchFieldDelegate {
 			return
 		}
 		lastSentSearchString = searchString
-		let smartFeed = SmartFeed(delegate: SearchFeedDelegate(searchString: searchString))
+		let smartFeed = SmartFeed(delegate: SearchFeedDelegate(searchString: searchString), type: .search)
 		timelineContainerViewController?.setRepresentedObjects([smartFeed], mode: .search)
 		searchSmartFeed = smartFeed
 	}

Shared/SmartFeeds/SmartFeed.swift

@@ -11,12 +11,22 @@ import RSCore
 import Articles
 import Account
 
+enum SmartFeedType {
+	case today
+	case allUnread
+	case starred
+	case search
+	case custom
+}
+
 final class SmartFeed: PseudoFeed {
 
 	var nameForDisplay: String {
 		return delegate.nameForDisplay
 	}
 
+	let type: SmartFeedType
+
 	var unreadCount = 0 {
 		didSet {
 			if unreadCount != oldValue {
@@ -34,8 +44,9 @@ final class SmartFeed: PseudoFeed {
 	private let delegate: SmartFeedDelegate
 	private var unreadCounts = [String: Int]()
 
-	init(delegate: SmartFeedDelegate) {
+	init(delegate: SmartFeedDelegate, type: SmartFeedType) {
 		self.delegate = delegate
+		self.type = type
 		NotificationCenter.default.addObserver(self, selector: #selector(unreadCountDidChange(_:)), name: .UnreadCountDidChange, object: nil)
 		queueFetchUnreadCounts() // Fetch unread count at startup
 	}

Shared/SmartFeeds/SmartFeedsController.swift

@@ -15,9 +15,9 @@ final class SmartFeedsController: DisplayNameProvider {
 	let nameForDisplay = NSLocalizedString("Smart Feeds", comment: "Smart Feeds group title")
 
 	var smartFeeds = [AnyObject]()
-	let todayFeed = SmartFeed(delegate: TodayFeedDelegate())
+	let todayFeed = SmartFeed(delegate: TodayFeedDelegate(), type: .today)
 	let unreadFeed = UnreadFeed()
-	let starredFeed = SmartFeed(delegate: StarredFeedDelegate())
+	let starredFeed = SmartFeed(delegate: StarredFeedDelegate(), type: .starred)
 
 	private init() {