Fix timeline statuses not getting deselected when entering split nav

Closes #275

Tusker.xcodeproj/project.pbxproj

@@ -49,6 +49,7 @@
 		D61F758D2933C69C00C0B37F /* StatusUpdatedNotificationTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D61F758B2933C69C00C0B37F /* StatusUpdatedNotificationTableViewCell.swift */; };
 		D61F758E2933C69C00C0B37F /* StatusUpdatedNotificationTableViewCell.xib in Resources */ = {isa = PBXBuildFile; fileRef = D61F758C2933C69C00C0B37F /* StatusUpdatedNotificationTableViewCell.xib */; };
 		D61F759029353B4300C0B37F /* FileManager+Size.swift in Sources */ = {isa = PBXBuildFile; fileRef = D61F758F29353B4300C0B37F /* FileManager+Size.swift */; };
+		D61F759229365C6C00C0B37F /* CollectionViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D61F759129365C6C00C0B37F /* CollectionViewController.swift */; };
 		D620483423D3801D008A63EF /* LinkTextView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D620483323D3801D008A63EF /* LinkTextView.swift */; };
 		D620483623D38075008A63EF /* ContentTextView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D620483523D38075008A63EF /* ContentTextView.swift */; };
 		D620483823D38190008A63EF /* StatusContentTextView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D620483723D38190008A63EF /* StatusContentTextView.swift */; };
@@ -414,6 +415,7 @@
 		D61F758B2933C69C00C0B37F /* StatusUpdatedNotificationTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatusUpdatedNotificationTableViewCell.swift; sourceTree = "<group>"; };
 		D61F758C2933C69C00C0B37F /* StatusUpdatedNotificationTableViewCell.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = StatusUpdatedNotificationTableViewCell.xib; sourceTree = "<group>"; };
 		D61F758F29353B4300C0B37F /* FileManager+Size.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "FileManager+Size.swift"; sourceTree = "<group>"; };
+		D61F759129365C6C00C0B37F /* CollectionViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CollectionViewController.swift; sourceTree = "<group>"; };
 		D620483323D3801D008A63EF /* LinkTextView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LinkTextView.swift; sourceTree = "<group>"; };
 		D620483523D38075008A63EF /* ContentTextView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentTextView.swift; sourceTree = "<group>"; };
 		D620483723D38190008A63EF /* StatusContentTextView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatusContentTextView.swift; sourceTree = "<group>"; };
@@ -1357,6 +1359,7 @@
 				D6DFC69D242C490400ACC392 /* TrackpadScrollGestureRecognizer.swift */,
 				D6B8DB332182A59300424AF7 /* UIAlertController+Visibility.swift */,
 				D6C693FD2162FEEA007D6A6D /* UIViewController+Children.swift */,
+				D61F759129365C6C00C0B37F /* CollectionViewController.swift */,
 			);
 			path = Utilities;
 			sourceTree = "<group>";
@@ -1800,6 +1803,7 @@
 				D6412B0324AFF6A600F5412E /* TabBarScrollableViewController.swift in Sources */,
 				D6093FB725BE0CF3004811E6 /* TrendHistoryView.swift in Sources */,
 				D6EBF01723C55E0D00AE061B /* UISceneSession+MastodonController.swift in Sources */,
+				D61F759229365C6C00C0B37F /* CollectionViewController.swift in Sources */,
 				04DACE8C212CB14B009840C4 /* MainTabBarViewController.swift in Sources */,
 				D68E525D24A3E8F00054355A /* SearchViewController.swift in Sources */,
 				D6AEBB412321642700E5038B /* SendMesasgeActivity.swift in Sources */,

Tusker/Screens/Timeline/TimelineViewController.swift

@@ -10,7 +10,7 @@ import UIKit
 import Pachyderm
 import Combine
 
-class TimelineViewController: UIViewController, TimelineLikeCollectionViewController, RefreshableViewController {
+class TimelineViewController: UIViewController, TimelineLikeCollectionViewController, CollectionViewController, RefreshableViewController {
     let timeline: Timeline
     weak var mastodonController: MastodonController!
     

Tusker/Screens/Utilities/CollectionViewController.swift

@@ -0,0 +1,13 @@
+//
+//  CollectionViewController.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 11/29/22.
+//  Copyright © 2022 Shadowfacts. All rights reserved.
+//
+
+import UIKit
+
+protocol CollectionViewController: UIViewController {
+    var collectionView: UICollectionView! { get }
+}

Tusker/Screens/Utilities/SplitNavigationController.swift

@@ -56,7 +56,7 @@ class SplitNavigationController: UIViewController {
                    let selectedIndexPath = tableVC.tableView.indexPathForSelectedRow {
                     tableVC.tableView.deselectRow(at: selectedIndexPath, animated: true)
                 } else if let sender = sender as? UIViewController,
-                          let collectionView = sender.view as? UICollectionView {
+                          let collectionView = (sender as? CollectionViewController)?.collectionView ?? sender.view as? UICollectionView {
                     // the collection view's animation speed is weirdly fast, so we do it slower
                     UIView.animate(withDuration: 0.5, delay: 0) {
                         collectionView.indexPathsForSelectedItems?.forEach { collectionView.deselectItem(at: $0, animated: false) }