571 lines
22 KiB
Swift
571 lines
22 KiB
Swift
//
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// GameCollectionViewController.swift
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// Delta
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//
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// Created by Riley Testut on 8/12/16.
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// Copyright © 2016 Riley Testut. All rights reserved.
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//
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import UIKit
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import DeltaCore
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import Roxas
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import SDWebImage
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class GameCollectionViewController: UICollectionViewController
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{
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var gameCollection: GameCollection! {
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didSet {
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self.title = self.gameCollection.shortName
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self.updateDataSource()
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}
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}
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var theme: Theme = .opaque {
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didSet {
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// self.collectionView?.reloadData()
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// Calling reloadData sometimes will not update the cells correctly if an insertion/deletion animation is in progress
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// As a workaround, we manually iterate over and configure each cell ourselves
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for cell in self.collectionView?.visibleCells ?? []
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{
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if let indexPath = self.collectionView?.indexPath(for: cell)
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{
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self.configure(cell as! GridCollectionViewCell, for: indexPath)
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}
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}
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}
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}
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weak var activeEmulatorCore: EmulatorCore?
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fileprivate var activeSaveState: SaveStateProtocol?
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fileprivate let dataSource = RSTFetchedResultsCollectionViewDataSource<Game>(fetchedResultsController: NSFetchedResultsController())
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fileprivate let prototypeCell = GridCollectionViewCell()
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fileprivate var _performing3DTouchTransition = false
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fileprivate weak var _destination3DTouchTransitionViewController: UIViewController?
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fileprivate var _renameAction: UIAlertAction?
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}
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//MARK: - UIViewController -
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/// UIViewController
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extension GameCollectionViewController
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{
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override func viewDidLoad()
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{
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super.viewDidLoad()
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self.dataSource.cellConfigurationHandler = { [unowned self] (cell, item, indexPath) in
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self.configure(cell as! GridCollectionViewCell, for: indexPath)
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}
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self.collectionView?.dataSource = self.dataSource
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self.collectionView?.delegate = self
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let layout = self.collectionViewLayout as! GridCollectionViewLayout
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layout.itemWidth = 90
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layout.minimumInteritemSpacing = 12
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self.registerForPreviewing(with: self, sourceView: self.collectionView!)
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let longPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(GameCollectionViewController.handleLongPressGesture(_:)))
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self.collectionView?.addGestureRecognizer(longPressGestureRecognizer)
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}
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override func viewWillDisappear(_ animated: Bool)
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{
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super.viewWillDisappear(animated)
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if _performing3DTouchTransition
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{
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_performing3DTouchTransition = false
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// Unlike our custom transitions, 3D Touch transition doesn't manually call appearance methods for us
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// To compensate, we call them ourselves
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_destination3DTouchTransitionViewController?.beginAppearanceTransition(true, animated: true)
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self.transitionCoordinator?.animate(alongsideTransition: nil, completion: { (context) in
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self._destination3DTouchTransitionViewController?.endAppearanceTransition()
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self._destination3DTouchTransitionViewController = nil
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})
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}
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}
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override func didReceiveMemoryWarning()
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{
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super.didReceiveMemoryWarning()
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// Dispose of any resources that can be recreated.
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}
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}
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//MARK: - Segues -
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/// Segues
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extension GameCollectionViewController
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{
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override func prepare(for segue: UIStoryboardSegue, sender: Any?)
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{
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guard let identifier = segue.identifier else { return }
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switch identifier
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{
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case "saveStates":
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let game = sender as! Game
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let saveStatesViewController = (segue.destination as! UINavigationController).topViewController as! SaveStatesViewController
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saveStatesViewController.delegate = self
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saveStatesViewController.game = game
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saveStatesViewController.mode = .loading
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saveStatesViewController.theme = self.theme
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case "gamesDatabaseBrowser":
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let game = sender as! Game
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let gamesDatabaseBrowserViewController = (segue.destination as! UINavigationController).topViewController as! GamesDatabaseBrowserViewController
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gamesDatabaseBrowserViewController.selectionHandler = { (metadata) in
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DatabaseManager.shared.performBackgroundTask({ (context) in
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let temporaryGame = context.object(with: game.objectID) as! Game
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temporaryGame.artworkURL = metadata.artworkURL
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context.saveWithErrorLogging()
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DispatchQueue.main.async {
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gamesDatabaseBrowserViewController.dismiss(animated: true, completion: nil)
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}
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})
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}
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case "unwindFromGames":
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let destinationViewController = segue.destination as! GameViewController
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let cell = sender as! UICollectionViewCell
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let indexPath = self.collectionView!.indexPath(for: cell)!
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let game = self.dataSource.item(at: indexPath)
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destinationViewController.game = game
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if let saveState = self.activeSaveState
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{
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// Must be synchronous or else there will be a flash of black
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destinationViewController.emulatorCore?.start()
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destinationViewController.emulatorCore?.pause()
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do
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{
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try destinationViewController.emulatorCore?.load(saveState)
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}
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catch EmulatorCore.SaveStateError.doesNotExist
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{
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print("Save State does not exist.")
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}
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catch
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{
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print(error)
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}
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destinationViewController.emulatorCore?.resume()
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}
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self.activeSaveState = nil
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if _performing3DTouchTransition
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{
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_destination3DTouchTransitionViewController = destinationViewController
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}
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default: break
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}
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}
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@IBAction private func unwindFromSaveStatesViewController(with segue: UIStoryboardSegue)
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{
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}
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@IBAction private func unwindFromGamesDatabaseBrowser(with segue: UIStoryboardSegue)
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{
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}
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}
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//MARK: - Private Methods -
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private extension GameCollectionViewController
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{
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//MARK: - Update
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func updateDataSource()
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{
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let fetchRequest: NSFetchRequest<Game> = Game.fetchRequest()
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fetchRequest.predicate = NSPredicate(format: "ANY %K == %@", #keyPath(Game.gameCollections), self.gameCollection)
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fetchRequest.sortDescriptors = [NSSortDescriptor(key: #keyPath(Game.name), ascending: true)]
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fetchRequest.returnsObjectsAsFaults = false
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self.dataSource.fetchedResultsController = NSFetchedResultsController(fetchRequest: fetchRequest, managedObjectContext: DatabaseManager.shared.viewContext, sectionNameKeyPath: nil, cacheName: nil)
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}
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//MARK: - Configure Cells
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func configure(_ cell: GridCollectionViewCell, for indexPath: IndexPath, ignoreImageOperations: Bool = false)
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{
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let game = self.dataSource.item(at: indexPath)
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switch self.theme
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{
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case .opaque:
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cell.isTextLabelVibrancyEnabled = false
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cell.isImageViewVibrancyEnabled = false
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case .translucent:
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cell.isTextLabelVibrancyEnabled = true
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cell.isImageViewVibrancyEnabled = true
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}
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cell.maximumImageSize = CGSize(width: 90, height: 90)
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cell.textLabel.text = game.name
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cell.textLabel.textColor = UIColor.gray
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if let artworkURL = game.artworkURL, !ignoreImageOperations
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{
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cell.imageView.sd_setImage(with: artworkURL, placeholderImage: #imageLiteral(resourceName: "BoxArt"), options: .continueInBackground) { (image, error, type, url) in
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if let error = error
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{
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print(error)
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}
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if image != nil
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{
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cell.isImageViewVibrancyEnabled = false
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}
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}
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}
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else
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{
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cell.imageView.image = #imageLiteral(resourceName: "BoxArt")
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}
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}
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//MARK: - Emulation
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func launchGame(withSender sender: AnyObject?, clearScreen: Bool)
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{
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if clearScreen
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{
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self.activeEmulatorCore?.gameViews.forEach { $0.inputImage = nil }
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}
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self.performSegue(withIdentifier: "unwindFromGames", sender: sender)
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}
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}
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//MARK: - Game Actions -
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private extension GameCollectionViewController
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{
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func actions(for game: Game) -> [Action]
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{
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let cancelAction = Action(title: NSLocalizedString("Cancel", comment: ""), style: .cancel, action: nil)
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let renameAction = Action(title: NSLocalizedString("Rename", comment: ""), style: .default, action: { [unowned self] action in
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self.rename(game)
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})
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let changeArtworkAction = Action(title: NSLocalizedString("Change Artwork", comment: ""), style: .default) { [unowned self] action in
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self.changeArtwork(for: game)
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}
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let shareAction = Action(title: NSLocalizedString("Share", comment: ""), style: .default, action: { [unowned self] action in
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self.share(game)
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})
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let saveStatesAction = Action(title: NSLocalizedString("Save States", comment: ""), style: .default, action: { [unowned self] action in
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self.viewSaveStates(for: game)
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})
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let deleteAction = Action(title: NSLocalizedString("Delete", comment: ""), style: .destructive, action: { [unowned self] action in
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self.delete(game)
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})
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switch game.type
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{
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case GameType.unknown: return [cancelAction, renameAction, changeArtworkAction, shareAction, deleteAction]
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default: return [cancelAction, renameAction, changeArtworkAction, shareAction, saveStatesAction, deleteAction]
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}
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}
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func delete(_ game: Game)
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{
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let confirmationAlertController = UIAlertController(title: NSLocalizedString("Are you sure you want to delete this game? All associated data, such as saves, save states, and cheat codes, will also be deleted.", comment: ""), message: nil, preferredStyle: .actionSheet)
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confirmationAlertController.addAction(UIAlertAction(title: NSLocalizedString("Delete Game", comment: ""), style: .destructive, handler: { action in
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DatabaseManager.shared.performBackgroundTask { (context) in
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let temporaryGame = context.object(with: game.objectID) as! Game
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context.delete(temporaryGame)
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context.saveWithErrorLogging()
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}
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}))
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confirmationAlertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .cancel, handler: nil))
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self.present(confirmationAlertController, animated: true, completion: nil)
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}
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func viewSaveStates(for game: Game)
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{
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self.performSegue(withIdentifier: "saveStates", sender: game)
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}
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func rename(_ game: Game)
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{
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let alertController = UIAlertController(title: NSLocalizedString("Rename Game", comment: ""), message: nil, preferredStyle: .alert)
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alertController.addTextField { (textField) in
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textField.text = game.name
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textField.placeholder = NSLocalizedString("Name", comment: "")
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textField.autocapitalizationType = .words
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textField.returnKeyType = .done
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textField.enablesReturnKeyAutomatically = true
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textField.addTarget(self, action: #selector(GameCollectionViewController.textFieldTextDidChange(_:)), for: .editingChanged)
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}
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .cancel, handler: { (action) in
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self._renameAction = nil
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}))
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let renameAction = UIAlertAction(title: NSLocalizedString("Rename", comment: ""), style: .default, handler: { [unowned alertController] (action) in
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self.rename(game, with: alertController.textFields?.first?.text ?? "")
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})
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alertController.addAction(renameAction)
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self._renameAction = renameAction
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self.present(alertController, animated: true, completion: nil)
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}
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func rename(_ game: Game, with name: String)
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{
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guard name.characters.count > 0 else { return }
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DatabaseManager.shared.performBackgroundTask { (context) in
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let game = context.object(with: game.objectID) as! Game
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game.name = name
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context.saveWithErrorLogging()
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}
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self._renameAction = nil
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}
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func changeArtwork(for game: Game)
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{
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self.performSegue(withIdentifier: "gamesDatabaseBrowser", sender: game)
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}
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func share(_ game: Game)
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{
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let temporaryDirectory = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
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let symbolicURL = temporaryDirectory.appendingPathComponent(game.name + "." + game.fileURL.pathExtension)
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do
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{
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try FileManager.default.createDirectory(at: temporaryDirectory, withIntermediateDirectories: true, attributes: nil)
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// Create a symbolic link so we can control the file name used when sharing.
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// Otherwise, if we just passed in game.fileURL to UIActivityViewController, the file name would be the game's SHA1 hash.
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try FileManager.default.createSymbolicLink(at: symbolicURL, withDestinationURL: game.fileURL)
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}
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catch
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{
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print(error)
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}
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let activityViewController = UIActivityViewController(activityItems: [symbolicURL], applicationActivities: nil)
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activityViewController.completionWithItemsHandler = { (activityType, finished, returnedItems, error) in
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do
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{
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try FileManager.default.removeItem(at: temporaryDirectory)
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}
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catch
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{
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print(error)
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}
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}
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self.present(activityViewController, animated: true, completion: nil)
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}
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@objc func textFieldTextDidChange(_ textField: UITextField)
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{
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let text = textField.text ?? ""
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self._renameAction?.isEnabled = text.characters.count > 0
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}
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@objc func handleLongPressGesture(_ gestureRecognizer: UILongPressGestureRecognizer)
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{
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guard gestureRecognizer.state == .began else { return }
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guard let indexPath = self.collectionView?.indexPathForItem(at: gestureRecognizer.location(in: self.collectionView)) else { return }
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let game = self.dataSource.item(at: indexPath)
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let actions = self.actions(for: game)
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let alertController = UIAlertController(actions: actions)
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self.present(alertController, animated: true, completion: nil)
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}
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}
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//MARK: - UIViewControllerPreviewingDelegate -
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/// UIViewControllerPreviewingDelegate
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extension GameCollectionViewController: UIViewControllerPreviewingDelegate
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{
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func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController?
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{
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guard self.gameCollection.identifier != GameType.unknown.rawValue else { return nil }
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guard
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let collectionView = self.collectionView,
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let indexPath = collectionView.indexPathForItem(at: location),
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let layoutAttributes = collectionView.layoutAttributesForItem(at: indexPath)
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else { return nil }
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previewingContext.sourceRect = layoutAttributes.frame
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let game = self.dataSource.item(at: indexPath)
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let gameViewController = PreviewGameViewController()
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gameViewController.game = game
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if let previewSaveState = game.previewSaveState
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{
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gameViewController.previewSaveState = previewSaveState
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gameViewController.previewImage = UIImage(contentsOfFile: previewSaveState.imageFileURL.path)
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}
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let actions = self.actions(for: game).previewActions
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gameViewController.overridePreviewActionItems = actions
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return gameViewController
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}
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func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController)
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{
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let gameViewController = viewControllerToCommit as! PreviewGameViewController
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let game = gameViewController.game as! Game
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let indexPath = self.dataSource.fetchedResultsController.indexPath(forObject: game)!
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let cell = self.collectionView?.cellForItem(at: indexPath)
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let fileURL = FileManager.uniqueTemporaryURL()
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self.activeSaveState = gameViewController.emulatorCore?.saveSaveState(to: fileURL)
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gameViewController.emulatorCore?.stop()
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_performing3DTouchTransition = true
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self.launchGame(withSender: cell, clearScreen: true)
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do
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{
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try FileManager.default.removeItem(at: fileURL)
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}
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catch
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{
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print(error)
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}
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}
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}
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//MARK: - SaveStatesViewControllerDelegate -
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/// SaveStatesViewControllerDelegate
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extension GameCollectionViewController: SaveStatesViewControllerDelegate
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{
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func saveStatesViewController(_ saveStatesViewController: SaveStatesViewController, updateSaveState saveState: SaveState)
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{
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}
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func saveStatesViewController(_ saveStatesViewController: SaveStatesViewController, loadSaveState saveState: SaveStateProtocol)
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{
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self.activeSaveState = saveState
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self.dismiss(animated: true) {
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let indexPath = self.dataSource.fetchedResultsController.indexPath(forObject: saveStatesViewController.game)!
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let cell = self.collectionView?.cellForItem(at: indexPath)
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self.launchGame(withSender: cell, clearScreen: false)
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}
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}
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}
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//MARK: - UICollectionViewDelegate -
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/// UICollectionViewDelegate
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extension GameCollectionViewController
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{
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override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath)
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{
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guard self.gameCollection.identifier != GameType.unknown.rawValue else { return }
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let cell = collectionView.cellForItem(at: indexPath)
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let game = self.dataSource.item(at: indexPath)
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if game.fileURL == self.activeEmulatorCore?.game.fileURL
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{
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let alertController = UIAlertController(title: NSLocalizedString("Game Paused", comment: ""), message: NSLocalizedString("Would you like to resume where you left off, or restart the game?", comment: ""), preferredStyle: .alert)
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .cancel, handler: nil))
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Resume", comment: ""), style: .default, handler: { (action) in
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let fetchRequest = SaveState.rst_fetchRequest() as! NSFetchRequest<SaveState>
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fetchRequest.predicate = NSPredicate(format: "%K == %@ AND %K == %d", #keyPath(SaveState.game), game, #keyPath(SaveState.type), SaveStateType.auto.rawValue)
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fetchRequest.sortDescriptors = [NSSortDescriptor(key: #keyPath(SaveState.creationDate), ascending: true)]
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do
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{
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let saveStates = try game.managedObjectContext?.fetch(fetchRequest)
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self.activeSaveState = saveStates?.last
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}
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catch
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{
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print(error)
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}
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// Disable videoManager to prevent flash of black
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self.activeEmulatorCore?.videoManager.isEnabled = false
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self.launchGame(withSender: cell, clearScreen: false)
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// The game hasn't changed, so the activeEmulatorCore is the same as before, so we need to enable videoManager it again
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self.activeEmulatorCore?.videoManager.isEnabled = true
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}))
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Restart", comment: ""), style: .destructive, handler: { (action) in
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self.launchGame(withSender: cell, clearScreen: true)
|
|
}))
|
|
self.present(alertController, animated: true)
|
|
}
|
|
else
|
|
{
|
|
self.launchGame(withSender: cell, clearScreen: true)
|
|
}
|
|
}
|
|
|
|
override func collectionView(_ collectionView: UICollectionView, didEndDisplaying cell: UICollectionViewCell, forItemAt indexPath: IndexPath)
|
|
{
|
|
let cell = cell as! GridCollectionViewCell
|
|
cell.imageView.sd_cancelCurrentImageLoad()
|
|
}
|
|
}
|
|
|
|
//MARK: - UICollectionViewDelegateFlowLayout -
|
|
/// UICollectionViewDelegateFlowLayout
|
|
extension GameCollectionViewController: UICollectionViewDelegateFlowLayout
|
|
{
|
|
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize
|
|
{
|
|
let collectionViewLayout = collectionView.collectionViewLayout as! GridCollectionViewLayout
|
|
|
|
let widthConstraint = self.prototypeCell.contentView.widthAnchor.constraint(equalToConstant: collectionViewLayout.itemWidth)
|
|
widthConstraint.isActive = true
|
|
defer { widthConstraint.isActive = false }
|
|
|
|
self.configure(self.prototypeCell, for: indexPath, ignoreImageOperations: true)
|
|
|
|
let size = self.prototypeCell.contentView.systemLayoutSizeFitting(UILayoutFittingCompressedSize)
|
|
return size
|
|
}
|
|
}
|