Add handoff to various user activities

Tusker/Screens/Conversation/ConversationViewController.swift

@@ -227,6 +227,10 @@ class ConversationViewController: UIViewController {
     }
     
     private func mainStatusLoaded(_ mainStatus: StatusMO) {
+        if let accountID = mastodonController.accountInfo?.id {
+            userActivity = UserActivityManager.showConversationActivity(mainStatusID: mainStatus.id, accountID: accountID)
+        }
+        
         let vc = ConversationCollectionViewController(for: mainStatus.id, state: mainStatusState, conversationViewController: self)
         vc.statusIDToScrollToOnLoad = statusIDToScrollToOnLoad ?? mainStatus.id
         vc.showStatusesAutomatically = showStatusesAutomatically

Tusker/Screens/Profile/MyProfileViewController.swift

@@ -38,7 +38,9 @@ class MyProfileViewController: ProfileViewController {
         navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Preferences", style: .plain, target: self, action: #selector(preferencesPressed))
         
         NotificationCenter.default.addObserver(self, selector: #selector(preferencesChanged), name: .preferencesChanged, object: nil)
+    }
     
+    override func updateUserActivity() {
         userActivity = UserActivityManager.myProfileActivity(accountID: mastodonController.accountInfo!.id)
     }
     

Tusker/Screens/Profile/ProfileViewController.swift

@@ -109,6 +109,13 @@ class ProfileViewController: UIViewController, StateRestorableViewController {
         }
     }
     
+    func updateUserActivity() {
+        if let accountID,
+           let currentAccountID = mastodonController.accountInfo?.id {
+            userActivity = UserActivityManager.showProfileActivity(id: accountID, accountID: currentAccountID)
+        }
+    }
+    
     private func loadAccount() async {
         guard let accountID else {
             return
@@ -136,10 +143,7 @@ class ProfileViewController: UIViewController, StateRestorableViewController {
     }
     
     private func updateAccountUI(account: AccountMO) {
-        if let currentAccountID = mastodonController.accountInfo?.id {
+        updateUserActivity()
-            userActivity = UserActivityManager.showProfileActivity(id: account.id, accountID: currentAccountID)
-        }
-        
         navigationItem.title = account.displayNameWithoutCustomEmoji
     }
     

Tusker/Screens/Timeline/TimelineViewController.swift

@@ -44,7 +44,6 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
     
     private var cancellables = Set<AnyCancellable>()
     private var contentOffsetObservation: NSKeyValueObservation?
-    private var activityToRestore: NSUserActivity?
     // the last time this VC disappeared or the scene was backgrounded while it was active, used to decide if we want to check for present when reappearing
     private var disappearedAt: Date?
     
@@ -69,6 +68,10 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
                 
         self.navigationItem.title = timeline.title
         addKeyCommand(MenuController.refreshCommand(discoverabilityTitle: "Refresh Timeline"))
+        
+        if let accountID = mastodonController.accountInfo?.id {
+            self.userActivity = UserActivityManager.showTimelineActivity(timeline: timeline, accountID: accountID)
+        }
     }
     
     required init?(coder: NSCoder) {

Tusker/Shortcuts/UserActivityManager.swift

@@ -124,6 +124,7 @@ class UserActivityManager {
     static func checkNotificationsActivity(mode: NotificationsMode = .allNotifications, accountID: String) -> NSUserActivity {
         let activity = NSUserActivity(type: .checkNotifications, accountID: accountID)
         activity.isEligibleForPrediction = true
+        activity.isEligibleForHandoff = true
         activity.addUserInfoEntries(from: [
             "notificationsMode": mode.rawValue
         ])
@@ -160,6 +161,7 @@ class UserActivityManager {
         
         let activity = NSUserActivity(type: .showTimeline, accountID: accountID)
         activity.isEligibleForPrediction = true
+        activity.isEligibleForHandoff = true
         activity.addUserInfoEntries(from: [
             "timelineData": timelineData,
         ])
@@ -221,6 +223,7 @@ class UserActivityManager {
             "mainStatusID": mainStatusID,
         ])
         activity.isEligibleForPrediction = isEligibleForPrediction
+        activity.isEligibleForHandoff = true
         return activity
     }
     
@@ -298,6 +301,7 @@ class UserActivityManager {
     static func myProfileActivity(accountID: String) -> NSUserActivity {
         let activity = NSUserActivity(type: .myProfile, accountID: accountID)
         activity.isEligibleForPrediction = true
+        activity.isEligibleForHandoff = true
         activity.title = NSLocalizedString("My Profile", comment: "my profile shortcut title")
         activity.suggestedInvocationPhrase = NSLocalizedString("Show my Mastodon profile", comment: "my profile shortuct invocation phrase")
         return activity