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Display toast on load errors

This commit is contained in:
Shadowfacts 2021-08-15 10:37:37 -04:00
parent 7f4bf52050
commit 7781c5252b
1 changed files with 77 additions and 25 deletions
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102
Tusker/Screens/Utilities/DiffableTimelineLikeTableViewController.swift
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@ -59,6 +59,7 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
super.viewDidDisappear(animated)
pruneOffscreenRows()
currentToast?.dismissToast(animated: false)
}
class func refreshCommandTitle() -> String {
@ -111,13 +112,26 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
state = .loadingInitial
loadInitialItems() { result in
guard case let .success(snapshot) = result else {
self.state = .unloaded
return
}
DispatchQueue.main.async {
self.dataSource.apply(snapshot, animatingDifferences: false)
self.state = .loaded
switch result {
case let .success(snapshot):
self.dataSource.apply(snapshot, animatingDifferences: false)
self.state = .loaded
case let .failure(.client(error)):
self.state = .unloaded
var config = ToastConfiguration(title: "Error Loading")
config.subtitle = error.localizedDescription
config.systemImageName = error.systemImageName
config.actionTitle = "Retry"
config.action = { [weak self] (toast) in
toast.dismissToast(animated: true)
self?.loadInitial()
}
self.showToast(configuration: config, animated: true)
default:
self.state = .unloaded
}
}
}
}
@ -133,13 +147,27 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
state = .loadingOlder
loadOlderItems(currentSnapshot: dataSource.snapshot()) { result in
guard case let .success(snapshot) = result else {
self.state = .loaded
return
}
DispatchQueue.main.async {
self.dataSource.apply(snapshot, animatingDifferences: false)
self.state = .loaded
switch result {
case let .success(snapshot):
self.dataSource.apply(snapshot, animatingDifferences: false)
case let .failure(.client(error)):
var config = ToastConfiguration(title: "Error Loading Older")
config.subtitle = error.localizedDescription
config.systemImageName = error.systemImageName
config.actionTitle = "Retry"
config.action = { [weak self] (toast) in
toast.dismissToast(animated: true)
self?.loadOlder()
}
self.showToast(configuration: config, animated: true)
default:
break
}
}
}
}
@ -196,23 +224,32 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
}
loadNewerItems(currentSnapshot: snapshot) { result in
guard case let .success(snapshot) = result else {
DispatchQueue.main.async {
self.refreshControl?.endRefreshing()
self.state = .loaded
}
return
}
DispatchQueue.main.async {
self.refreshControl?.endRefreshing()
self.dataSource.apply(snapshot, animatingDifferences: false)
self.state = .loaded
if let item = item,
let indexPath = self.dataSource.indexPath(for: item) {
// maintain the current position in the list (don't scroll to top)
self.tableView.scrollToRow(at: indexPath, at: .top, animated: false)
switch result {
case let .success(snapshot):
self.dataSource.apply(snapshot, animatingDifferences: false)
if let item = item,
let indexPath = self.dataSource.indexPath(for: item) {
// maintain the current position in the list (don't scroll to top)
self.tableView.scrollToRow(at: indexPath, at: .top, animated: false)
}
case let .failure(.client(error)):
var config = ToastConfiguration(title: "Error Loading Newer")
config.subtitle = error.localizedDescription
config.systemImageName = error.systemImageName
config.actionTitle = "Retry"
config.action = { [weak self] (toast) in
toast.dismissToast(animated: true)
self?.refresh()
}
self.showToast(configuration: config, animated: true)
default:
break
}
}
}
@ -267,5 +304,20 @@ extension DiffableTimelineLikeTableViewController {
extension DiffableTimelineLikeTableViewController: BackgroundableViewController {
func sceneDidEnterBackground() {
pruneOffscreenRows()
currentToast?.dismissToast(animated: false)
}
}
extension DiffableTimelineLikeTableViewController: ToastableViewController {
}
fileprivate extension Client.Error {
var systemImageName: String {
switch self {
case .networkError(_):
return "wifi.exclamationmark"
default:
return "exclamationmark.triangle"
}
}
}