Merge branch 'feature/game_search' into develop

Delta/Extensions/UIViewControllerContextTransitioning+Conveniences.swift

@@ -21,11 +21,11 @@ extension UIViewControllerContextTransitioning
     
     /// UIViews
     var sourceView: UIView {
-        return self.sourceViewController.view
+        return self.view(forKey: .from) ?? self.sourceViewController.view
     }
     
     var destinationView: UIView {
-        return self.destinationViewController.view
+        return self.view(forKey: .to) ?? self.destinationViewController.view
     }
     
     

Delta/Game Selection/GameCollectionViewController.swift

@@ -17,9 +17,9 @@ import SDWebImage
 
 class GameCollectionViewController: UICollectionViewController
 {
-    var gameCollection: GameCollection! {
+    var gameCollection: GameCollection? {
         didSet {
-            self.title = self.gameCollection.shortName
+            self.title = self.gameCollection?.shortName
             self.updateDataSource()
         }
     }
@@ -41,11 +41,12 @@ class GameCollectionViewController: UICollectionViewController
         }
     }
     
+    internal let dataSource: RSTFetchedResultsCollectionViewPrefetchingDataSource<Game, UIImage>
+    
     weak var activeEmulatorCore: EmulatorCore?
     
     private var activeSaveState: SaveStateProtocol?
     
-    private let dataSource: RSTFetchedResultsCollectionViewPrefetchingDataSource<Game, UIImage>
     private let prototypeCell = GridCollectionViewCell()
     
     private var _performing3DTouchTransition = false
@@ -215,7 +216,12 @@ private extension GameCollectionViewController
     func updateDataSource()
     {
         let fetchRequest: NSFetchRequest<Game> = Game.fetchRequest()
-        fetchRequest.predicate = NSPredicate(format: "ANY %K == %@", #keyPath(Game.gameCollections), self.gameCollection)
+        
+        if let gameCollection = self.gameCollection
+        {
+            fetchRequest.predicate = NSPredicate(format: "ANY %K == %@", #keyPath(Game.gameCollections), gameCollection)
+        }
+        
         fetchRequest.sortDescriptors = [NSSortDescriptor(key: #keyPath(Game.name), ascending: true)]
         fetchRequest.returnsObjectsAsFaults = false
         
@@ -424,7 +430,7 @@ extension GameCollectionViewController: UIViewControllerPreviewingDelegate
 {
     func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController?
     {
-        guard self.gameCollection.identifier != GameType.unknown.rawValue else { return nil }
+        guard self.gameCollection?.identifier != GameType.unknown.rawValue else { return nil }
         
         guard
             let collectionView = self.collectionView,
@@ -598,7 +604,7 @@ extension GameCollectionViewController
 {
     override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath)
     {
-        guard self.gameCollection.identifier != GameType.unknown.rawValue else { return }
+        guard self.gameCollection?.identifier != GameType.unknown.rawValue else { return }
         
         let cell = collectionView.cellForItem(at: indexPath)
         let game = self.dataSource.item(at: indexPath)

Delta/Game Selection/GamesViewController.swift

@@ -35,12 +35,18 @@ class GamesViewController: UIViewController
         }
     }
     
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        return .lightContent
+    }
+    
     private var pageViewController: UIPageViewController!
     private var placeholderView: RSTPlaceholderView!
     private var pageControl: UIPageControl!
     
     private let fetchedResultsController: NSFetchedResultsController<NSFetchRequestResult>
     
+    private var searchController: RSTSearchController?
+    
     override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
         fatalError("initWithNibName: not implemented")
     }
@@ -88,6 +94,11 @@ extension GamesViewController
         self.navigationController?.navigationBar.barStyle = .blackTranslucent
         self.navigationController?.toolbar.barStyle = .blackTranslucent
         
+        if #available(iOS 11.0, *)
+        {
+            self.prepareSearchController()
+        }
+        
         self.updateTheme()
     }
     
@@ -153,6 +164,48 @@ extension GamesViewController
 /// UI
 private extension GamesViewController
 {
+    @available(iOS 11.0, *)
+    func prepareSearchController()
+    {
+        let searchResultsController = self.storyboard?.instantiateViewController(withIdentifier: "gameCollectionViewController") as! GameCollectionViewController
+        searchResultsController.gameCollection = nil
+        searchResultsController.theme = self.theme
+        searchResultsController.activeEmulatorCore = self.activeEmulatorCore
+        
+        let placeholderView = RSTPlaceholderView()
+        placeholderView.textLabel.text = NSLocalizedString("No Games Found", comment: "")
+        placeholderView.detailTextLabel.text = NSLocalizedString("Please make sure the name is correct, or try searching for another game.", comment: "")
+        
+        switch self.theme
+        {
+        case .opaque: searchResultsController.dataSource.placeholderView = placeholderView
+        case .translucent:
+            let vibrancyView = UIVisualEffectView(effect: UIVibrancyEffect(blurEffect: UIBlurEffect(style: .dark)))
+            vibrancyView.contentView.addSubview(placeholderView, pinningEdgesWith: .zero)
+            searchResultsController.dataSource.placeholderView = vibrancyView
+        }
+        
+        self.searchController = RSTSearchController(searchResultsController: searchResultsController)
+        self.searchController?.searchableKeyPaths = [#keyPath(Game.name)]
+        self.searchController?.searchHandler = { [weak searchController, weak searchResultsController] (searchValue, _) in
+            if searchController?.searchBar.text?.isEmpty == false
+            {
+                self.pageViewController.view.isHidden = true
+            }
+            else
+            {
+                self.pageViewController.view.isHidden = false
+            }
+            
+            searchResultsController?.dataSource.predicate = searchValue.predicate
+            return nil
+        }
+        self.navigationItem.searchController = self.searchController
+        self.navigationItem.hidesSearchBarWhenScrolling = false
+        
+        self.definesPresentationContext = true
+    }
+    
     func updateTheme()
     {
         switch self.theme
@@ -190,7 +243,7 @@ private extension GamesViewController
         let indexPath = IndexPath(row: safeIndex, section: 0)
         
         let viewController = self.storyboard?.instantiateViewController(withIdentifier: "gameCollectionViewController") as! GameCollectionViewController
-        viewController.gameCollection = self.fetchedResultsController.object(at: indexPath) as! GameCollection
+        viewController.gameCollection = self.fetchedResultsController.object(at: indexPath) as? GameCollection
         viewController.theme = self.theme
         viewController.activeEmulatorCore = self.activeEmulatorCore
         
@@ -402,6 +455,21 @@ extension GamesViewController: UIPageViewControllerDataSource, UIPageViewControl
     }
 }
 
+extension GamesViewController: UISearchResultsUpdating
+{
+    func updateSearchResults(for searchController: UISearchController)
+    {
+        if searchController.searchBar.text?.isEmpty == false
+        {            
+            self.pageViewController.view.isHidden = true
+        }
+        else
+        {
+            self.pageViewController.view.isHidden = false
+        }
+    }
+}
+
 //MARK: - NSFetchedResultsControllerDelegate -
 /// NSFetchedResultsControllerDelegate
 extension GamesViewController: NSFetchedResultsControllerDelegate

Delta/Game Selection/Segues/GamesStoryboardSegue.swift

@@ -85,13 +85,15 @@ extension GamesStoryboardSegue: UIViewControllerAnimatedTransitioning
         snapshotView.alpha = 1.0
         transitionContext.containerView.addSubview(snapshotView)
         
-        // Ensures navigation controller toolbar (if visible) has been added to view heirachy, allowing us to add constraints
-        transitionContext.containerView.layoutIfNeeded()
-        
         // We add extra padding around the existing navigation bar and toolbar so they never appear to be detached from the edges of the screen during the overshooting of the spring animation
         var topPaddingToolbar: UIToolbar? = nil
         var bottomPaddingToolbar: UIToolbar? = nil
         
+        // Must be wrapped in no-animation block to prevent iOS 11 search bar from not appearing.
+        UIView.performWithoutAnimation {
+            // Ensures navigation controller toolbar (if visible) has been added to view heirachy, allowing us to add constraints
+            transitionContext.containerView.layoutIfNeeded()
+            
             if let navigationController = transitionContext.destinationViewController as? UINavigationController
             {
                 let padding: CGFloat = 44
@@ -101,12 +103,12 @@ extension GamesStoryboardSegue: UIViewControllerAnimatedTransitioning
                     let topToolbar = UIToolbar(frame: CGRect.zero)
                     topToolbar.translatesAutoresizingMaskIntoConstraints = false
                     topToolbar.barStyle = navigationController.toolbar.barStyle
-                transitionContext.destinationView.insertSubview(topToolbar, belowSubview: navigationController.navigationBar)
+                    transitionContext.destinationView.insertSubview(topToolbar, at: 1)
                     
-                topToolbar.bottomAnchor.constraint(equalTo: navigationController.navigationBar.bottomAnchor).isActive = true
+                    topToolbar.topAnchor.constraint(equalTo: navigationController.navigationBar.topAnchor, constant: -padding).isActive = true
-                topToolbar.centerXAnchor.constraint(equalTo: navigationController.navigationBar.centerXAnchor).isActive = true
+                    topToolbar.bottomAnchor.constraint(equalTo: navigationController.topViewController!.topLayoutGuide.bottomAnchor).isActive = true
-                topToolbar.widthAnchor.constraint(equalTo: navigationController.navigationBar.widthAnchor, constant: padding * 2).isActive = true
+                    topToolbar.leftAnchor.constraint(equalTo: navigationController.navigationBar.leftAnchor, constant: -padding).isActive = true
-                topToolbar.heightAnchor.constraint(equalTo: navigationController.navigationBar.heightAnchor, constant: padding).isActive = true
+                    topToolbar.rightAnchor.constraint(equalTo: navigationController.navigationBar.rightAnchor, constant: padding).isActive = true
                     
                     topPaddingToolbar = topToolbar
                 }
@@ -119,13 +121,14 @@ extension GamesStoryboardSegue: UIViewControllerAnimatedTransitioning
                     transitionContext.destinationView.insertSubview(bottomToolbar, belowSubview: navigationController.navigationBar)
                     
                     bottomToolbar.topAnchor.constraint(equalTo: navigationController.toolbar.topAnchor).isActive = true
-                bottomToolbar.centerXAnchor.constraint(equalTo: navigationController.toolbar.centerXAnchor).isActive = true
+                    bottomToolbar.bottomAnchor.constraint(equalTo: navigationController.toolbar.bottomAnchor, constant: padding).isActive = true
-                bottomToolbar.widthAnchor.constraint(equalTo: navigationController.toolbar.widthAnchor, constant: padding * 2).isActive = true
+                    bottomToolbar.leftAnchor.constraint(equalTo: navigationController.toolbar.leftAnchor, constant: -padding).isActive = true
-                bottomToolbar.heightAnchor.constraint(equalTo: navigationController.toolbar.heightAnchor, constant: padding).isActive = true
+                    bottomToolbar.rightAnchor.constraint(equalTo: navigationController.toolbar.rightAnchor, constant: padding).isActive = true
                     
                     bottomPaddingToolbar = bottomToolbar
                 }
             }
+        }
         
         self.animator.addAnimations {
             snapshotView.alpha = 0.0
@@ -163,3 +166,4 @@ extension GamesStoryboardSegue: UIViewControllerAnimatedTransitioning
         self.animator.startAnimation()
     }
 }
+

External/Roxas

@@ -1 +1 @@
-Subproject commit 7434aef0372aca1d0b12cc4b8a6a37df034aae7c
+Subproject commit 192682bb389830944d257946d870e1d50ae4c42b