Add NSUserActivity for reading articles

iOS/AppCoordinator.swift

@@ -210,6 +210,8 @@ class AppCoordinator: NSObject, UndoableCommandRunner, UnreadCountProvider {
 			}
 		}
 	}
+	
+	private(set) var readActivity: NSUserActivity? = nil
 
 	override init() {
 		super.init()
@@ -508,7 +510,8 @@ class AppCoordinator: NSObject, UndoableCommandRunner, UnreadCountProvider {
 	
 	func selectArticle(_ indexPath: IndexPath?) {
 		currentArticleIndexPath = indexPath
-
+		updateReadArticleUserActivity()
+		
 		if indexPath == nil {
 			if !rootSplitViewController.isCollapsed {
 				let systemMessageViewController = UIStoryboard.main.instantiateController(ofType: SystemMessageViewController.self)
@@ -1168,4 +1171,16 @@ private extension AppCoordinator {
 		
 	}
 	
+	// MARK: NSUserActivity
+	
+	func updateReadArticleUserActivity() {
+		readActivity?.invalidate()
+		readActivity = nil
+		
+		guard let article = currentArticle else { return }
+		
+		readActivity = ActivityFactory.make(article)
+		readActivity?.becomeCurrent()
+	}
+	
 }

iOS/MasterTimeline/MasterTimelineViewController.swift

@@ -463,39 +463,11 @@ private extension MasterTimelineViewController {
 		
 	}
 	
-	func avatarFor(_ article: Article) -> UIImage? {
-		
+	func avatarFor(_ article: Article) -> RSImage? {
 		if !coordinator.showAvatars {
 			return nil
 		}
-		
-		if let authors = article.authors {
-			for author in authors {
-				if let image = avatarForAuthor(author) {
-					return image
-				}
-			}
-		}
-		
-		guard let feed = article.feed else {
-			return nil
-		}
-		
-		let feedIconImage = appDelegate.feedIconDownloader.icon(for: feed)
-		if feedIconImage != nil {
-			return feedIconImage
-		}
-		
-		if let feed = article.feed, let faviconImage = appDelegate.faviconDownloader.faviconAsAvatar(for: feed) {
-			return faviconImage
-		}
-		
-		return FaviconGenerator.favicon(feed)
-		
-	}
-	
-	func avatarForAuthor(_ author: Author) -> UIImage? {
-		return appDelegate.authorAvatarDownloader.image(for: author)
+		return article.avatarImage()
 	}
 	
 	func featuredImageFor(_ article: Article) -> UIImage? {

iOS/Resources/Info.plist

@@ -47,6 +47,10 @@
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>NSUserActivityTypes</key>
+	<array>
+		<string>com.ranchero.NetNewsWire.ReadArticle</string>
+	</array>
 	<key>NSAppTransportSecurity</key>
 	<dict>
 		<key>NSAllowsArbitraryLoads</key>