Fixes peek & pop deprecation warnings

AltStore/Browse/BrowseViewController.swift

@@ -14,7 +14,7 @@ import Roxas
 
 import Nuke
 
-class BrowseViewController: UICollectionViewController
+class BrowseViewController: UICollectionViewController, PeekPopPreviewing
 {
     private lazy var dataSource = self.makeDataSource()
     private lazy var placeholderView = RSTPlaceholderView(frame: .zero)
@@ -47,7 +47,7 @@ class BrowseViewController: UICollectionViewController
         self.collectionView.dataSource = self.dataSource
         self.collectionView.prefetchDataSource = self.dataSource
         
-        self.registerForPreviewing(with: self, sourceView: self.collectionView)
+        (self as PeekPopPreviewing).registerForPreviewing(with: self, sourceView: self.collectionView)
         
         self.update()
     }
@@ -373,6 +373,7 @@ extension BrowseViewController: UICollectionViewDelegateFlowLayout
 
 extension BrowseViewController: UIViewControllerPreviewingDelegate
 {
+    @available(iOS, deprecated: 13.0)
     func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController?
     {
         guard
@@ -388,6 +389,7 @@ extension BrowseViewController: UIViewControllerPreviewingDelegate
         return appViewController
     }
     
+    @available(iOS, deprecated: 13.0)
     func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController)
     {
         self.navigationController?.pushViewController(viewControllerToCommit, animated: true)

AltStore/My Apps/MyAppsViewController.swift

@@ -32,7 +32,7 @@ extension MyAppsViewController
     }
 }
 
-final class MyAppsViewController: UICollectionViewController
+class MyAppsViewController: UICollectionViewController, PeekPopPreviewing
 {
     private let coordinator = NSFileCoordinator()
     private let operationQueue = OperationQueue()
@@ -115,11 +115,7 @@ final class MyAppsViewController: UICollectionViewController
                                          self.sideloadingProgressView.bottomAnchor.constraint(equalTo: navigationBar.bottomAnchor)])
         }
         
-        if #available(iOS 13, *) {}
-        else
-        {
-            self.registerForPreviewing(with: self, sourceView: self.collectionView)
-        }
+        (self as PeekPopPreviewing).registerForPreviewing(with: self, sourceView: self.collectionView)
     }
     
     override func viewWillAppear(_ animated: Bool)
@@ -2230,6 +2226,7 @@ extension MyAppsViewController: UIDocumentPickerDelegate
 
 extension MyAppsViewController: UIViewControllerPreviewingDelegate
 {
+    @available(iOS, deprecated: 13.0)
     func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController?
     {
         guard
@@ -2253,6 +2250,7 @@ extension MyAppsViewController: UIViewControllerPreviewingDelegate
         }
     }
     
+    @available(iOS, deprecated: 13.0)
     func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController)
     {
         let point = CGPoint(x: previewingContext.sourceRect.midX, y: previewingContext.sourceRect.midY)

AltStore/News/NewsViewController.swift

@@ -41,7 +41,7 @@ private final class AppBannerFooterView: UICollectionReusableView
     }
 }
 
-final class NewsViewController: UICollectionViewController
+class NewsViewController: UICollectionViewController, PeekPopPreviewing
 {
     private lazy var dataSource = self.makeDataSource()
     private lazy var placeholderView = RSTPlaceholderView(frame: .zero)
@@ -77,7 +77,7 @@ final class NewsViewController: UICollectionViewController
         self.collectionView.register(NewsCollectionViewCell.nib, forCellWithReuseIdentifier: RSTCellContentGenericCellIdentifier)
         self.collectionView.register(AppBannerFooterView.self, forSupplementaryViewOfKind: UICollectionView.elementKindSectionFooter, withReuseIdentifier: "AppBanner")
         
-        self.registerForPreviewing(with: self, sourceView: self.collectionView)
+        (self as PeekPopPreviewing).registerForPreviewing(with: self, sourceView: self.collectionView)
         
         self.update()
     }
@@ -492,6 +492,7 @@ extension NewsViewController: UICollectionViewDelegateFlowLayout
 
 extension NewsViewController: UIViewControllerPreviewingDelegate
 {
+    @available(iOS, deprecated: 13.0)
     func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController?
     {
         if let indexPath = self.collectionView.indexPathForItem(at: location), let cell = self.collectionView.cellForItem(at: indexPath)
@@ -538,6 +539,7 @@ extension NewsViewController: UIViewControllerPreviewingDelegate
         }
     }
     
+    @available(iOS, deprecated: 13.0)
     func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController)
     {
         if let safariViewController = viewControllerToCommit as? SFSafariViewController

AltStore/Types/PeekPopPreviewing.swift

@@ -0,0 +1,16 @@
+//
+//  PeekPopPreviewing.swift
+//  AltStore
+//
+//  Created by Riley Testut on 3/2/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import UIKit
+
+// Conforming UIViewControllers to PeekPopPreviewing allows us to call deprecated registerForPreviewing(with:sourceView:) without warnings.
+protocol PeekPopPreviewing
+{
+    @discardableResult
+    func registerForPreviewing(with delegate: UIViewControllerPreviewingDelegate, sourceView: UIView) -> UIViewControllerPreviewing
+}