add the ability to respond to NSActivityRequests

NetNewsWire.xcodeproj/project.pbxproj

@@ -123,6 +123,7 @@
 		51C452B42265141B00C03939 /* WebKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 51C452B32265141B00C03939 /* WebKit.framework */; };
 		51C452B82265178500C03939 /* styleSheet.css in Resources */ = {isa = PBXBuildFile; fileRef = 51C452B72265178500C03939 /* styleSheet.css */; };
 		51D5948722668EFA00DFC836 /* MarkStatusCommand.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84702AA31FA27AC0006B8943 /* MarkStatusCommand.swift */; };
+		51D87EE12311D34700E63F03 /* ActivityType.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51D87EE02311D34700E63F03 /* ActivityType.swift */; };
 		51E3EB33229AB02C00645299 /* ErrorHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51E3EB32229AB02C00645299 /* ErrorHandler.swift */; };
 		51E3EB3D229AB08300645299 /* ErrorHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51E3EB3C229AB08300645299 /* ErrorHandler.swift */; };
 		51E595A5228CC36500FCC42B /* ArticleStatusSyncTimer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 51E595A4228CC36500FCC42B /* ArticleStatusSyncTimer.swift */; };
@@ -730,6 +731,7 @@
 		51C4528B2265095F00C03939 /* AddFolderViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AddFolderViewController.swift; sourceTree = "<group>"; };
 		51C452B32265141B00C03939 /* WebKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = WebKit.framework; path = Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.2.sdk/System/Library/Frameworks/WebKit.framework; sourceTree = DEVELOPER_DIR; };
 		51C452B72265178500C03939 /* styleSheet.css */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.css; path = styleSheet.css; sourceTree = "<group>"; };
+		51D87EE02311D34700E63F03 /* ActivityType.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActivityType.swift; sourceTree = "<group>"; };
 		51E3EB32229AB02C00645299 /* ErrorHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ErrorHandler.swift; sourceTree = "<group>"; };
 		51E3EB3C229AB08300645299 /* ErrorHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ErrorHandler.swift; sourceTree = "<group>"; };
 		51E595A4228CC36500FCC42B /* ArticleStatusSyncTimer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ArticleStatusSyncTimer.swift; sourceTree = "<group>"; };
@@ -1093,6 +1095,7 @@
 			children = (
 				51934CCD2310792F006127BE /* ActivityFactory.swift */,
 				51934CCF23108953006127BE /* ActivityID.swift */,
+				51D87EE02311D34700E63F03 /* ActivityType.swift */,
 			);
 			path = Activity;
 			sourceTree = "<group>";
@@ -2392,6 +2395,7 @@
 				51F85BFD2275DCA800C787DC /* SingleLineUILabelSizer.swift in Sources */,
 				51C4528F226509BD00C03939 /* UnreadFeed.swift in Sources */,
 				5183CCDD226F1F5C0010922C /* NavigationProgressView.swift in Sources */,
+				51D87EE12311D34700E63F03 /* ActivityType.swift in Sources */,
 				51C452772265091600C03939 /* MultilineUILabelSizer.swift in Sources */,
 				51C452A522650A2D00C03939 /* SmallIconProvider.swift in Sources */,
 				51D5948722668EFA00DFC836 /* MarkStatusCommand.swift in Sources */,

Shared/Activity/ActivityFactory.swift

@@ -14,7 +14,7 @@ import Articles
 class ActivityFactory {
 	
 	static func make(_ article: Article) -> NSUserActivity {
-		let activity = NSUserActivity(activityType: "com.ranchero.NetNewsWire.ReadArticle")
+		let activity = NSUserActivity(activityType: ActivityType.readArticle.rawValue)
 
 		activity.title = article.title
 		
@@ -25,6 +25,7 @@ class ActivityFactory {
 		
 		activity.userInfo = [
 			ActivityID.accountID.rawValue: article.accountID,
+			ActivityID.accountName.rawValue: article.account?.name ?? "",
 			ActivityID.feedID.rawValue: article.feedID,
 			ActivityID.articleID.rawValue: article.articleID
 		]

Shared/Activity/ActivityID.swift

@@ -10,6 +10,7 @@ import Foundation
 
 enum ActivityID: String {
 	case accountID = "accountID"
+	case accountName = "accountName"
 	case feedID = "feedID"
 	case articleID = "articleID"
 }

Shared/Activity/ActivityType.swift

@@ -0,0 +1,13 @@
+//
+//  ActivityType.swift
+//  NetNewsWire-iOS
+//
+//  Created by Maurice Parker on 8/24/19.
+//  Copyright © 2019 Ranchero Software. All rights reserved.
+//
+
+import Foundation
+
+enum ActivityType: String {
+	case readArticle = "com.ranchero.NetNewsWire.ReadArticle"
+}

iOS/AppCoordinator.swift

@@ -253,6 +253,14 @@ class AppCoordinator: NSObject, UndoableCommandRunner, UnreadCountProvider {
 		return rootSplitViewController
 	}
 	
+	func handle(_ activity: NSUserActivity) {
+		guard let activityType = ActivityType(rawValue: activity.activityType) else { return }
+		switch activityType {
+		case .readArticle:
+			handleReadArticle(activity)
+		}
+	}
+	
 	// MARK: Notifications
 	
 	@objc func statusesDidChange(_ note: Notification) {
@@ -1183,4 +1191,51 @@ private extension AppCoordinator {
 		readActivity?.becomeCurrent()
 	}
 	
+	func handleReadArticle(_ activity: NSUserActivity) {
+		guard let accountNode = findAccountNode(for: activity), let feedNode = findFeedNode(for: activity, beginningAt: accountNode) else {
+			return
+		}
+		
+		masterFeedViewController.discloseFeed(feedNode.representedObject as! Feed)
+		
+		guard let articleID = activity.userInfo?[ActivityID.articleID.rawValue] as? String else { return }
+		
+		for (index, article) in articles.enumerated() {
+			if article.articleID == articleID {
+				selectArticle(IndexPath(row: index, section: 0))
+				break
+			}
+		}
+	}
+	
+	func findAccountNode(for activity: NSUserActivity) -> Node? {
+		guard let accountID = activity.userInfo?[ActivityID.accountID.rawValue] as? String else {
+			return nil
+		}
+		
+		if let node = treeController.rootNode.descendantNode(where: { ($0.representedObject as? Account)?.accountID == accountID }) {
+			return node
+		}
+
+		guard let accountName = activity.userInfo?[ActivityID.accountName.rawValue] as? String else {
+			return nil
+		}
+
+		if let node = treeController.rootNode.descendantNode(where: { ($0.representedObject as? Account)?.name == accountName }) {
+			return node
+		}
+
+		return nil
+	}
+	
+	func findFeedNode(for activity: NSUserActivity, beginningAt startingNode: Node) -> Node? {
+		guard let feedID = activity.userInfo?[ActivityID.feedID.rawValue] as? String else {
+			return nil
+		}
+		if let node = startingNode.descendantNode(where: { ($0.representedObject as? Feed)?.feedID == feedID }) {
+			return node
+		}
+		return nil
+	}
+	
 }

iOS/SceneDelegate.swift

@@ -32,6 +32,10 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
         // The `window` property will automatically be loaded with the storyboard's initial view controller.
     }
 	
+	func scene(_ scene: UIScene, continue userActivity: NSUserActivity) {
+		coordinator.handle(userActivity)
+	}
+	
 	func sceneDidEnterBackground(_ scene: UIScene) {
 		appDelegate.prepareAccountsForBackground()
 	}

submodules/RSTree

@@ -1 +1 @@
-Subproject commit 350762104423aef963ca945d4388ca9d47f991ce
+Subproject commit db208e17bdf4f5e7e643c580acbc339191693537