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Extract more things to TimelineLikeCollectionViewController

This commit is contained in:
Shadowfacts 2022-10-01 15:08:51 -04:00
parent a682c8f5cc
commit 253fb8d27d
3 changed files with 32 additions and 31 deletions
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20
Tusker/Screens/Timeline/TimelineViewController.swift
View File

@ -62,6 +62,7 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
collectionView.delegate = self
// collectionView.dragDelegate = self
registerTimelineLikeCells()
dataSource = createDataSource()
applyInitialSnapshot()
@ -93,27 +94,14 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
config.text = try! doc.text()
cell.contentConfiguration = config
}
collectionView.register(LoadingCollectionViewCell.self, forCellWithReuseIdentifier: "loadingIndicator")
collectionView.register(ConfirmLoadMoreCollectionViewCell.self, forCellWithReuseIdentifier: "confirmLoadMore")
return UICollectionViewDiffableDataSource(collectionView: collectionView) { [unowned self] collectionView, indexPath, itemIdentifier in
switch itemIdentifier {
case .status(_, _):
return collectionView.dequeueConfiguredReusableCell(using: listCell, for: indexPath, item: itemIdentifier)
case .loadingIndicator:
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "loadingIndicator", for: indexPath) as! LoadingCollectionViewCell
cell.indicator.startAnimating()
return cell
return loadingIndicatorCell(for: indexPath)
case .confirmLoadMore:
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "confirmLoadMore", for: indexPath) as! ConfirmLoadMoreCollectionViewCell
cell.confirmLoadMore = self.confirmLoadMore
Task {
if case .loadingOlder(_, _) = await controller.state {
cell.isLoading = true
} else {
cell.isLoading = false
}
}
return cell
return confirmLoadMoreCell(for: indexPath)
}
}
}
@ -195,7 +183,7 @@ extension TimelineViewController {
}
}
// MARK: - TimelineLikeControllerDelegate
// MARK: TimelineLikeControllerDelegate
extension TimelineViewController {
typealias TimelineItem = String // status ID

27
Tusker/Screens/Utilities/TimelineLikeCollectionViewController.swift
View File

@ -42,6 +42,7 @@ protocol TimelineLikeCollectionViewError: Error, Equatable {
static var allCaughtUp: Self { get }
}
// MARK: TimelineLikeControllerDelegate
extension TimelineLikeCollectionViewController {
func canLoadOlder() async -> Bool {
if Preferences.shared.disableInfiniteScrolling {
@ -185,3 +186,29 @@ extension TimelineLikeCollectionViewController {
await dataSource.apply(snapshot, animatingDifferences: false)
}
}
extension TimelineLikeCollectionViewController {
func registerTimelineLikeCells() {
collectionView.register(LoadingCollectionViewCell.self, forCellWithReuseIdentifier: "loadingIndicator")
collectionView.register(ConfirmLoadMoreCollectionViewCell.self, forCellWithReuseIdentifier: "confirmLoadMore")
}
func loadingIndicatorCell(for indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "loadingIndicator", for: indexPath) as! LoadingCollectionViewCell
cell.indicator.startAnimating()
return cell
}
func confirmLoadMoreCell(for indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "confirmLoadMore", for: indexPath) as! ConfirmLoadMoreCollectionViewCell
cell.confirmLoadMore = self.confirmLoadMore
Task {
if case .loadingOlder(_, _) = await controller.state {
cell.isLoading = true
} else {
cell.isLoading = false
}
}
return cell
}
}

16
Tusker/TimelineLikeController.swift
View File

@ -86,11 +86,7 @@ actor TimelineLikeController<Item> {
return
}
let token = LoadAttemptToken()
// TODO: does the waiting state need to include the token?
// TODO: does this even need to be a separate state? maybe we should just await the delegate's permission, since it can suspend until user input. then the prompt could appear, and the user could scroll back to the top and still be able to refresh
// state = .waitingForLoadOlderPermission
guard await delegate.canLoadOlder() else {
// state = .idle
return
}
state = .loadingOlder(token, hasAddedLoadingIndicator: false)
@ -124,7 +120,6 @@ actor TimelineLikeController<Item> {
case idle
case loadingInitial(LoadAttemptToken, hasAddedLoadingIndicator: Bool)
case loadingNewer(LoadAttemptToken)
// case waitingForLoadOlderPermission
case loadingOlder(LoadAttemptToken, hasAddedLoadingIndicator: Bool)
var debugDescription: String {
@ -137,8 +132,6 @@ actor TimelineLikeController<Item> {
return "loadingInitial(\(ObjectIdentifier(token)), hasAddedLoadingIndicator: \(hasAddedLoadingIndicator))"
case .loadingNewer(let token):
return "loadingNewer(\(ObjectIdentifier(token)))"
// case .waitingForLoadOlderPermission:
// return "waitingForLoadOlderPermission"
case .loadingOlder(let token, let hasAddedLoadingIndicator):
return "loadingOlder(\(ObjectIdentifier(token)), hasAddedLoadingIndicator: \(hasAddedLoadingIndicator))"
}
@ -155,7 +148,7 @@ actor TimelineLikeController<Item> {
}
case .idle:
switch to {
case .loadingNewer(_)/*, .waitingForLoadOlderPermission*/, .loadingOlder(_, _):
case .loadingNewer(_), .loadingOlder(_, _):
return true
default:
return false
@ -166,13 +159,6 @@ actor TimelineLikeController<Item> {
return to == .idle
case .loadingOlder(let token, let hasAddedLoadingIndicator):
return to == .idle || (!hasAddedLoadingIndicator && to == .loadingOlder(token, hasAddedLoadingIndicator: true))
// case .waitingForLoadOlderPermission:
// switch to {
// case .idle, .loadingOlder(_, _):
// return true
// default:
// return false
// }
}
}