source-code

2020-06-09 23:38:02 +02:00
parent 3e3f9ab752
commit 06a8d21b98
346 changed files with 26230 additions and 0 deletions
--- a/source-code/ALTs/AltStore/Browse/BrowseViewController.swift
+++ b/source-code/ALTs/AltStore/Browse/BrowseViewController.swift
@@ -0,0 +1,358 @@
+//
+//  BrowseViewController.swift
+//  AltStore
+//
+//  Created by Riley Testut on 7/15/19.
+//  Copyright © 2019 Riley Testut. All rights reserved.
+//
+
+import UIKit
+
+import Roxas
+
+import Nuke
+
+class BrowseViewController: UICollectionViewController
+{
+    private lazy var dataSource = self.makeDataSource()
+    private lazy var placeholderView = RSTPlaceholderView(frame: .zero)
+    
+    private let prototypeCell = BrowseCollectionViewCell.instantiate(with: BrowseCollectionViewCell.nib!)!
+    
+    private var loadingState: LoadingState = .loading {
+        didSet {
+            self.update()
+        }
+    }
+    
+    private var cachedItemSizes = [String: CGSize]()
+    
+    override func viewDidLoad()
+    {
+        super.viewDidLoad()
+        
+        #if BETA
+        self.dataSource.searchController.searchableKeyPaths = [#keyPath(InstalledApp.name)]
+        self.navigationItem.searchController = self.dataSource.searchController
+        #else
+        // Hide Sources button for public version while in beta.
+        self.navigationItem.rightBarButtonItem = nil
+        #endif
+        
+        self.prototypeCell.contentView.translatesAutoresizingMaskIntoConstraints = false
+        
+        self.collectionView.register(BrowseCollectionViewCell.nib, forCellWithReuseIdentifier: RSTCellContentGenericCellIdentifier)
+        
+        self.collectionView.dataSource = self.dataSource
+        self.collectionView.prefetchDataSource = self.dataSource
+        
+        self.registerForPreviewing(with: self, sourceView: self.collectionView)
+        
+        self.update()
+    }
+    
+    override func viewWillAppear(_ animated: Bool)
+    {
+        super.viewWillAppear(animated)
+        
+        self.fetchSource()
+        self.updateDataSource()
+    }
+    
+    @IBAction private func unwindToBrowseViewController(_ segue: UIStoryboardSegue)
+    {
+        self.fetchSource()
+    }
+}
+
+private extension BrowseViewController
+{
+    func makeDataSource() -> RSTFetchedResultsCollectionViewPrefetchingDataSource<StoreApp, UIImage>
+    {
+        let fetchRequest = StoreApp.fetchRequest() as NSFetchRequest<StoreApp>
+        fetchRequest.sortDescriptors = [NSSortDescriptor(keyPath: \StoreApp.sourceIdentifier, ascending: true),
+                                        NSSortDescriptor(keyPath: \StoreApp.sortIndex, ascending: true),
+                                        NSSortDescriptor(keyPath: \StoreApp.name, ascending: true),
+                                        NSSortDescriptor(keyPath: \StoreApp.bundleIdentifier, ascending: true)]
+        fetchRequest.returnsObjectsAsFaults = false
+        fetchRequest.predicate = NSPredicate(format: "%K != %@", #keyPath(StoreApp.bundleIdentifier), StoreApp.altstoreAppID)
+        
+        let dataSource = RSTFetchedResultsCollectionViewPrefetchingDataSource<StoreApp, UIImage>(fetchRequest: fetchRequest, managedObjectContext: DatabaseManager.shared.viewContext)
+        dataSource.cellConfigurationHandler = { (cell, app, indexPath) in
+            let cell = cell as! BrowseCollectionViewCell
+            cell.layoutMargins.left = self.view.layoutMargins.left
+            cell.layoutMargins.right = self.view.layoutMargins.right
+            
+            cell.subtitleLabel.text = app.subtitle
+            cell.imageURLs = Array(app.screenshotURLs.prefix(2))
+            cell.bannerView.titleLabel.text = app.name
+            cell.bannerView.subtitleLabel.text = app.developerName
+            cell.bannerView.betaBadgeView.isHidden = !app.isBeta
+            
+            cell.bannerView.iconImageView.image = nil
+            cell.bannerView.iconImageView.isIndicatingActivity = true
+            
+            cell.bannerView.button.addTarget(self, action: #selector(BrowseViewController.performAppAction(_:)), for: .primaryActionTriggered)
+            cell.bannerView.button.activityIndicatorView.style = .white
+            
+            // Explicitly set to false to ensure we're starting from a non-activity indicating state.
+            // Otherwise, cell reuse can mess up some cached values.
+            cell.bannerView.button.isIndicatingActivity = false
+            
+            let tintColor = app.tintColor ?? .altPrimary
+            cell.tintColor = tintColor
+            
+            if app.installedApp == nil
+            {
+                cell.bannerView.button.setTitle(NSLocalizedString("FREE", comment: ""), for: .normal)
+                
+                let progress = AppManager.shared.installationProgress(for: app)
+                cell.bannerView.button.progress = progress
+                
+                if Date() < app.versionDate
+                {
+                    cell.bannerView.button.countdownDate = app.versionDate
+                }
+                else
+                {
+                    cell.bannerView.button.countdownDate = nil
+                }
+            }
+            else
+            {
+                cell.bannerView.button.setTitle(NSLocalizedString("OPEN", comment: ""), for: .normal)
+                cell.bannerView.button.progress = nil
+                cell.bannerView.button.countdownDate = nil
+            }
+        }
+        dataSource.prefetchHandler = { (storeApp, indexPath, completionHandler) -> Foundation.Operation? in
+            let iconURL = storeApp.iconURL
+            
+            return RSTAsyncBlockOperation() { (operation) in
+                ImagePipeline.shared.loadImage(with: iconURL, progress: nil, completion: { (response, error) in
+                    guard !operation.isCancelled else { return operation.finish() }
+                    
+                    if let image = response?.image
+                    {
+                        completionHandler(image, nil)
+                    }
+                    else
+                    {
+                        completionHandler(nil, error)
+                    }
+                })
+            }
+        }
+        dataSource.prefetchCompletionHandler = { (cell, image, indexPath, error) in
+            let cell = cell as! BrowseCollectionViewCell
+            cell.bannerView.iconImageView.isIndicatingActivity = false
+            cell.bannerView.iconImageView.image = image
+            
+            if let error = error
+            {
+                print("Error loading image:", error)
+            }
+        }
+        
+        dataSource.placeholderView = self.placeholderView
+        
+        return dataSource
+    }
+    
+    func updateDataSource()
+    {
+        if let patreonAccount = DatabaseManager.shared.patreonAccount(), patreonAccount.isPatron, PatreonAPI.shared.isAuthenticated
+        {
+            self.dataSource.predicate = nil
+        }
+        else
+        {
+            self.dataSource.predicate = NSPredicate(format: "%K == NO", #keyPath(StoreApp.isBeta))
+        }
+    }
+    
+    func fetchSource()
+    {
+        self.loadingState = .loading
+        
+        AppManager.shared.fetchSources() { (result) in
+            do
+            {
+                let sources = try result.get()
+                try sources.first?.managedObjectContext?.save()
+                
+                DispatchQueue.main.async {
+                    self.loadingState = .finished(.success(()))
+                }
+            }
+            catch let error as NSError
+            {
+                DispatchQueue.main.async {
+                    if self.dataSource.itemCount > 0
+                    {
+                        let error = error.withLocalizedFailure(NSLocalizedString("Failed to Fetch Sources", comment: ""))
+                        
+                        let toastView = ToastView(error: error)
+                        toastView.show(in: self)
+                    }
+                    
+                    self.loadingState = .finished(.failure(error))
+                }
+            }
+        }
+    }
+    
+    func update()
+    {
+        switch self.loadingState
+        {
+        case .loading:
+            self.placeholderView.textLabel.isHidden = true
+            self.placeholderView.detailTextLabel.isHidden = false
+            
+            self.placeholderView.detailTextLabel.text = NSLocalizedString("Loading...", comment: "")
+            
+            self.placeholderView.activityIndicatorView.startAnimating()
+            
+        case .finished(.failure(let error)):
+            self.placeholderView.textLabel.isHidden = false
+            self.placeholderView.detailTextLabel.isHidden = false
+            
+            self.placeholderView.textLabel.text = NSLocalizedString("Unable to Fetch Apps", comment: "")
+            self.placeholderView.detailTextLabel.text = error.localizedDescription
+            
+            self.placeholderView.activityIndicatorView.stopAnimating()
+            
+        case .finished(.success):
+            self.placeholderView.textLabel.isHidden = true
+            self.placeholderView.detailTextLabel.isHidden = true
+            
+            self.placeholderView.activityIndicatorView.stopAnimating()
+        }
+    }
+}
+
+private extension BrowseViewController
+{
+    @IBAction func performAppAction(_ sender: PillButton)
+    {
+        let point = self.collectionView.convert(sender.center, from: sender.superview)
+        guard let indexPath = self.collectionView.indexPathForItem(at: point) else { return }
+        
+        let app = self.dataSource.item(at: indexPath)
+        
+        if let installedApp = app.installedApp
+        {
+            self.open(installedApp)
+        }
+        else
+        {
+            self.install(app, at: indexPath)
+        }
+    }
+    
+    func install(_ app: StoreApp, at indexPath: IndexPath)
+    {
+        let previousProgress = AppManager.shared.installationProgress(for: app)
+        guard previousProgress == nil else {
+            previousProgress?.cancel()
+            return
+        }
+        
+        _ = AppManager.shared.install(app, presentingViewController: self) { (result) in
+            DispatchQueue.main.async {
+                switch result
+                {
+                case .failure(OperationError.cancelled): break // Ignore
+                case .failure(let error):
+                    let toastView = ToastView(error: error)
+                    toastView.show(in: self)
+                
+                case .success: print("Installed app:", app.bundleIdentifier)
+                }
+                
+                self.collectionView.reloadItems(at: [indexPath])
+            }
+        }
+        
+        self.collectionView.reloadItems(at: [indexPath])
+    }
+    
+    func open(_ installedApp: InstalledApp)
+    {
+        UIApplication.shared.open(installedApp.openAppURL)
+    }
+}
+
+extension BrowseViewController: UICollectionViewDelegateFlowLayout
+{
+    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize
+    {
+        let item = self.dataSource.item(at: indexPath)
+
+        if let previousSize = self.cachedItemSizes[item.bundleIdentifier]
+        {
+            return previousSize
+        }
+
+        let maxVisibleScreenshots = 2 as CGFloat
+        let aspectRatio: CGFloat = 16.0 / 9.0
+        
+        let layout = self.prototypeCell.screenshotsCollectionView.collectionViewLayout as! UICollectionViewFlowLayout
+        let padding = (layout.minimumInteritemSpacing * (maxVisibleScreenshots - 1)) + layout.sectionInset.left + layout.sectionInset.right
+
+        self.dataSource.cellConfigurationHandler(self.prototypeCell, item, indexPath)
+
+        let widthConstraint = self.prototypeCell.contentView.widthAnchor.constraint(equalToConstant: collectionView.bounds.width)
+        widthConstraint.isActive = true
+        defer { widthConstraint.isActive = false }
+
+        // Manually update cell width & layout so we can accurately calculate screenshot sizes.
+        self.prototypeCell.frame.size.width = widthConstraint.constant
+        self.prototypeCell.layoutIfNeeded()
+        
+        let collectionViewWidth = self.prototypeCell.screenshotsCollectionView.bounds.width
+        let screenshotWidth = ((collectionViewWidth - padding) / maxVisibleScreenshots).rounded(.down)
+        let screenshotHeight = screenshotWidth * aspectRatio
+
+        let heightConstraint = self.prototypeCell.screenshotsCollectionView.heightAnchor.constraint(equalToConstant: screenshotHeight)
+        heightConstraint.priority = .defaultHigh // Prevent temporary unsatisfiable constraints error.
+        heightConstraint.isActive = true
+        defer { heightConstraint.isActive = false }
+
+        let itemSize = self.prototypeCell.contentView.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize)
+        self.cachedItemSizes[item.bundleIdentifier] = itemSize
+        return itemSize
+    }
+    
+    override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath)
+    {
+        let app = self.dataSource.item(at: indexPath)
+        
+        let appViewController = AppViewController.makeAppViewController(app: app)
+        self.navigationController?.pushViewController(appViewController, animated: true)
+    }
+}
+
+extension BrowseViewController: UIViewControllerPreviewingDelegate
+{
+    func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController?
+    {
+        guard
+            let indexPath = self.collectionView.indexPathForItem(at: location),
+            let cell = self.collectionView.cellForItem(at: indexPath)
+        else { return nil }
+        
+        previewingContext.sourceRect = cell.frame
+        
+        let app = self.dataSource.item(at: indexPath)
+        
+        let appViewController = AppViewController.makeAppViewController(app: app)
+        return appViewController
+    }
+    
+    func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController)
+    {
+        self.navigationController?.pushViewController(viewControllerToCommit, animated: true)
+    }
+}