New timeline key commands

Tusker/Screens/Timeline/TimelineViewController.swift

@@ -12,7 +12,7 @@ import Combine
 
 // TODO: gonna need a thing to replicate all of EnhancedTableViewController
 
-class TimelineViewController: UIViewController, TimelineLikeCollectionViewController {
+class TimelineViewController: UIViewController, TimelineLikeCollectionViewController, RefreshableViewController {
     let timeline: Timeline
     weak var mastodonController: MastodonController!
     
@@ -35,6 +35,8 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
         super.init(nibName: nil, bundle: nil)
         
         self.controller = TimelineLikeController(delegate: self)
+                
+        addKeyCommand(MenuController.refreshCommand(discoverabilityTitle: "Refresh Timeline"))
     }
     
     required init?(coder: NSCoder) {
@@ -76,20 +78,13 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
         applyInitialSnapshot()
         
 #if !targetEnvironment(macCatalyst)
-        let refreshControl = UIRefreshControl(frame: .zero, primaryAction: UIAction(handler: { [unowned self] _ in
-            Task {
-                await self.controller.loadNewer()
-                self.collectionView.refreshControl!.endRefreshing()
-            }
-        }))
-        collectionView.refreshControl = refreshControl
+        collectionView.refreshControl = UIRefreshControl()
+        collectionView.refreshControl!.addTarget(self, action: #selector(refresh), for: .valueChanged)
 #endif
     }
     
     override func viewDidLoad() {
         super.viewDidLoad()
-        
-        // TODO: refresh key command
     }
     
     private func createDataSource() -> UICollectionViewDiffableDataSource<Section, Item> {
@@ -157,6 +152,15 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
         isShowingTimelineDescription = false
     }
     
+    @objc func refresh() {
+        Task {
+            await controller.loadNewer()
+            #if !targetEnvironment(macCatalyst)
+            collectionView.refreshControl?.endRefreshing()
+            #endif
+        }
+    }
+    
 }
 
 extension TimelineViewController {