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Limits updating sources to app launch and manually via pull-to-refresh

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This commit is contained in:
Riley Testut
2023-12-07 17:30:46 -06:00
committed by Magesh K
parent cf09843538
commit 9716ee6152
4 changed files with 158 additions and 163 deletions
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122
AltStore/News/NewsViewController.swift
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@@ -8,6 +8,7 @@
import UIKit
import SafariServices
import Combine
import AltStoreCore
import Roxas
@@ -48,17 +49,13 @@ class NewsViewController: UICollectionViewController, PeekPopPreviewing
private lazy var dataSource = self.makeDataSource()
private lazy var placeholderView = RSTPlaceholderView(frame: .zero)
private var retryButton: UIButton!
private var prototypeCell: NewsCollectionViewCell!
private var loadingState: LoadingState = .loading {
didSet {
self.update()
}
}
// Cache
private var cachedCellSizes = [String: CGSize]()
private var cancellables = Set<AnyCancellable>()
init?(source: Source?, coder: NSCoder)
{
@@ -108,6 +105,16 @@ class NewsViewController: UICollectionViewController, PeekPopPreviewing
(self as PeekPopPreviewing).registerForPreviewing(with: self, sourceView: self.collectionView)
let refreshControl = UIRefreshControl(frame: .zero)
refreshControl.addTarget(self, action: #selector(NewsViewController.updateSources), for: .primaryActionTriggered)
self.collectionView.refreshControl = refreshControl
self.retryButton = UIButton(type: .system)
self.retryButton.titleLabel?.font = UIFont.preferredFont(forTextStyle: .body)
self.retryButton.setTitle(NSLocalizedString("Try Again", comment: ""), for: .normal)
self.retryButton.addTarget(self, action: #selector(NewsViewController.updateSources), for: .primaryActionTriggered)
self.placeholderView.stackView.addArrangedSubview(self.retryButton)
if let source = self.source
{
let tintColor = source.effectiveTintColor ?? .altPrimary
@@ -124,16 +131,10 @@ class NewsViewController: UICollectionViewController, PeekPopPreviewing
self.navigationItem.scrollEdgeAppearance = edgeAppearance
}
self.preparePipeline()
self.update()
}
override func viewWillAppear(_ animated: Bool)
{
super.viewWillAppear(animated)
self.fetchSource()
}
override func viewWillLayoutSubviews()
{
super.viewWillLayoutSubviews()
@@ -149,6 +150,16 @@ class NewsViewController: UICollectionViewController, PeekPopPreviewing
private extension NewsViewController
{
func preparePipeline()
{
AppManager.shared.$updateSourcesResult
.receive(on: RunLoop.main) // Delay to next run loop so we receive _current_ value (not previous value).
.sink { result in
self.update()
}
.store(in: &self.cancellables)
}
func makeDataSource() -> RSTFetchedResultsCollectionViewPrefetchingDataSource<NewsItem, UIImage>
{
let fetchRequest = NewsItem.sortedFetchRequest(for: self.source)
@@ -225,96 +236,51 @@ private extension NewsViewController
return dataSource
}
func fetchSource()
@objc func updateSources()
{
self.loadingState = .loading
AppManager.shared.fetchSources() { (result) in
do
AppManager.shared.updateAllSources() { result in
self.collectionView.refreshControl?.endRefreshing()
guard case .failure(let error) = result else { return }
if self.dataSource.itemCount > 0
{
do
{
let (_, context) = try result.get()
try context.save()
DispatchQueue.main.async {
self.loadingState = .finished(.success(()))
}
}
catch let error as AppManager.FetchSourcesError
{
try error.managedObjectContext?.save()
throw error
}
catch let mergeError as MergeError
{
guard let sourceID = mergeError.sourceID else { throw mergeError }
let sanitizedError = (mergeError as NSError).sanitizedForSerialization()
DatabaseManager.shared.persistentContainer.performBackgroundTask { context in
do
{
guard let source = Source.first(satisfying: NSPredicate(format: "%K == %@", #keyPath(Source.identifier), sourceID), in: context) else { return }
source.error = sanitizedError
try context.save()
}
catch
{
print("[ALTLog] Failed to assign error \(sanitizedError.localizedErrorCode) to source \(sourceID).", error)
}
}
throw mergeError
}
}
catch var error as NSError
{
if error.localizedTitle == nil
{
error = error.withLocalizedTitle(NSLocalizedString("Unable to Refresh Store", comment: ""))
}
DispatchQueue.main.async {
if self.dataSource.itemCount > 0
{
let toastView = ToastView(error: error)
toastView.addTarget(nil, action: #selector(TabBarController.presentSources), for: .touchUpInside)
toastView.show(in: self)
}
self.loadingState = .finished(.failure(error))
}
let toastView = ToastView(error: error)
toastView.addTarget(nil, action: #selector(TabBarController.presentSources), for: .touchUpInside)
toastView.show(in: self)
}
}
}
func update()
{
switch self.loadingState
switch AppManager.shared.updateSourcesResult
{
case .loading:
case nil:
self.placeholderView.textLabel.isHidden = true
self.placeholderView.detailTextLabel.isHidden = false
self.placeholderView.detailTextLabel.text = NSLocalizedString("Loading...", comment: "")
self.retryButton.isHidden = true
self.placeholderView.activityIndicatorView.startAnimating()
case .finished(.failure(let error)):
case .failure(let error):
self.placeholderView.textLabel.isHidden = false
self.placeholderView.detailTextLabel.isHidden = false
self.placeholderView.textLabel.text = NSLocalizedString("Unable to Fetch News", comment: "")
self.placeholderView.detailTextLabel.text = error.localizedDescription
self.retryButton.isHidden = false
self.placeholderView.activityIndicatorView.stopAnimating()
case .finished(.success):
case .success:
self.placeholderView.textLabel.isHidden = true
self.placeholderView.detailTextLabel.isHidden = true
self.retryButton.isHidden = true
self.placeholderView.activityIndicatorView.stopAnimating()
}
}
@@ -453,7 +419,9 @@ extension NewsViewController
footerView.bannerView.button.addTarget(self, action: #selector(NewsViewController.performAppAction(_:)), for: .primaryActionTriggered)
footerView.tapGestureRecognizer.addTarget(self, action: #selector(NewsViewController.handleTapGesture(_:)))
Nuke.loadImage(with: storeApp.iconURL, into: footerView.bannerView.iconImageView)
Nuke.loadImage(with: storeApp.iconURL, into: footerView.bannerView.iconImageView) { result in
footerView.bannerView.iconImageView.isIndicatingActivity = false
}
return footerView
}