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mastodon-app-ufficiale-iphone-ios
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feat: add bottom loader

This commit is contained in:
sunxiaojian 2021-04-14 19:04:11 +08:00
parent bffb0a887b
commit 687614d43a
4 changed files with 163 additions and 13 deletions
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4
Mastodon.xcodeproj/project.pbxproj
View File

@ -46,6 +46,7 @@
2D206B9225F60EA700143C56 /* UIControl.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2D206B9125F60EA700143C56 /* UIControl.swift */; };
2D24E11D2626D8B100A59D4F /* NotificationStatusTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2D24E11C2626D8B100A59D4F /* NotificationStatusTableViewCell.swift */; };
2D24E1232626ED9D00A59D4F /* UIView+Gesture.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2D24E1222626ED9D00A59D4F /* UIView+Gesture.swift */; };
2D24E12D2626FD2E00A59D4F /* NotificationViewModel+LoadOldestState.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2D24E12C2626FD2E00A59D4F /* NotificationViewModel+LoadOldestState.swift */; };
2D32EAAC25CB96DC00C9ED86 /* TimelineMiddleLoaderTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2D32EAAB25CB96DC00C9ED86 /* TimelineMiddleLoaderTableViewCell.swift */; };
2D32EABA25CB9B0500C9ED86 /* UIView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2D32EAB925CB9B0500C9ED86 /* UIView.swift */; };
2D32EADA25CBCC3300C9ED86 /* PublicTimelineViewModel+LoadMiddleState.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2D32EAD925CBCC3300C9ED86 /* PublicTimelineViewModel+LoadMiddleState.swift */; };
@ -435,6 +436,7 @@
2D206B9125F60EA700143C56 /* UIControl.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UIControl.swift; sourceTree = "<group>"; };
2D24E11C2626D8B100A59D4F /* NotificationStatusTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NotificationStatusTableViewCell.swift; sourceTree = "<group>"; };
2D24E1222626ED9D00A59D4F /* UIView+Gesture.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIView+Gesture.swift"; sourceTree = "<group>"; };
2D24E12C2626FD2E00A59D4F /* NotificationViewModel+LoadOldestState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "NotificationViewModel+LoadOldestState.swift"; sourceTree = "<group>"; };
2D32EAAB25CB96DC00C9ED86 /* TimelineMiddleLoaderTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelineMiddleLoaderTableViewCell.swift; sourceTree = "<group>"; };
2D32EAB925CB9B0500C9ED86 /* UIView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UIView.swift; sourceTree = "<group>"; };
2D32EAD925CBCC3300C9ED86 /* PublicTimelineViewModel+LoadMiddleState.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "PublicTimelineViewModel+LoadMiddleState.swift"; sourceTree = "<group>"; };
@ -1679,6 +1681,7 @@
2D607AD726242FC500B70763 /* NotificationViewModel.swift */,
2D084B8C26258EA3003AA3AF /* NotificationViewModel+diffable.swift */,
2D084B9226259545003AA3AF /* NotificationViewModel+LoadLatestState.swift */,
2D24E12C2626FD2E00A59D4F /* NotificationViewModel+LoadOldestState.swift */,
2D35237F26256F470031AF25 /* TableViewCell */,
);
path = Notification;
@ -2401,6 +2404,7 @@
2D76319F25C1521200929FB9 /* StatusSection.swift in Sources */,
DB35FC252612FD7A006193C9 /* ProfileFieldView.swift in Sources */,
2D650FAB25ECDC9300851B58 /* Mastodon+Entity+Error+Detail.swift in Sources */,
2D24E12D2626FD2E00A59D4F /* NotificationViewModel+LoadOldestState.swift in Sources */,
DB118A8C25E4BFB500FAB162 /* HighlightDimmableButton.swift in Sources */,
DBAE3FA92617106E004B8251 /* MastodonMetricFormatter.swift in Sources */,
2D35237A26256D920031AF25 /* NotificationSection.swift in Sources */,

28
Mastodon/Scene/Notification/NotificationViewController.swift
View File

@ -11,6 +11,7 @@ import OSLog
import CoreData
import CoreDataStack
import MastodonSDK
import GameplayKit
final class NotificationViewController: UIViewController, NeedsDependency {
@ -123,6 +124,7 @@ extension NotificationViewController {
} else {
viewModel.notificationPredicate.value = MastodonNotification.predicate(domain: domain, type: Mastodon.Entity.Notification.NotificationType.mention.rawValue)
}
viewModel.selectedIndex.value = sender.selectedSegmentIndex
}
@objc private func refreshControlValueChanged(_ sender: UIRefreshControl) {
@ -179,16 +181,16 @@ extension NotificationViewController: NotificationTableViewCellDelegate {
}
//// MARK: - UIScrollViewDelegate
//extension NotificationViewController {
// func scrollViewDidScroll(_ scrollView: UIScrollView) {
// handleScrollViewDidScroll(scrollView)
// }
//}
//
//extension NotificationViewController: LoadMoreConfigurableTableViewContainer {
// typealias BottomLoaderTableViewCell = SearchBottomLoader
// typealias LoadingState = NotificationViewController.LoadOldestState.Loading
// var loadMoreConfigurableTableView: UITableView { return tableView }
// var loadMoreConfigurableStateMachine: GKStateMachine { return viewModel.loadoldestStateMachine }
//}
// MARK: - UIScrollViewDelegate
extension NotificationViewController {
func scrollViewDidScroll(_ scrollView: UIScrollView) {
handleScrollViewDidScroll(scrollView)
}
}
extension NotificationViewController: LoadMoreConfigurableTableViewContainer {
typealias BottomLoaderTableViewCell = CommonBottomLoader
typealias LoadingState = NotificationViewModel.LoadOldestState.Loading
var loadMoreConfigurableTableView: UITableView { return tableView }
var loadMoreConfigurableStateMachine: GKStateMachine { return viewModel.loadoldestStateMachine }
}

128
Mastodon/Scene/Notification/NotificationViewModel+LoadOldestState.swift Normal file
View File

@ -0,0 +1,128 @@
//
// NotificationViewModel+LoadOldestState.swift
// Mastodon
//
// Created by sxiaojian on 2021/4/14.
//
import os.log
import Foundation
import GameplayKit
import MastodonSDK
extension NotificationViewModel {
class LoadOldestState: GKState {
weak var viewModel: NotificationViewModel?
init(viewModel: NotificationViewModel) {
self.viewModel = viewModel
}
override func didEnter(from previousState: GKState?) {
os_log("%{public}s[%{public}ld], %{public}s: enter %s, previous: %s", ((#file as NSString).lastPathComponent), #line, #function, self.debugDescription, previousState.debugDescription)
viewModel?.loadOldestStateMachinePublisher.send(self)
}
}
}
extension NotificationViewModel.LoadOldestState {
class Initial: NotificationViewModel.LoadOldestState {
override func isValidNextState(_ stateClass: AnyClass) -> Bool {
guard let viewModel = viewModel else { return false }
guard !(viewModel.fetchedResultsController.fetchedObjects ?? []).isEmpty else { return false }
return stateClass == Loading.self
}
}
class Loading: NotificationViewModel.LoadOldestState {
override func isValidNextState(_ stateClass: AnyClass) -> Bool {
return stateClass == Fail.self || stateClass == Idle.self || stateClass == NoMore.self
}
override func didEnter(from previousState: GKState?) {
super.didEnter(from: previousState)
guard let viewModel = viewModel, let stateMachine = stateMachine else { return }
guard let activeMastodonAuthenticationBox = viewModel.context.authenticationService.activeMastodonAuthenticationBox.value else {
assertionFailure()
stateMachine.enter(Fail.self)
return
}
guard let last = viewModel.fetchedResultsController.fetchedObjects?.last else {
stateMachine.enter(Idle.self)
return
}
let maxID = last.id
let query = Mastodon.API.Notifications.Query(
maxID: maxID,
sinceID: nil,
minID: nil,
limit: nil,
excludeTypes: Mastodon.API.Notifications.allExcludeTypes(),
accountID: nil)
viewModel.context.apiService.allNotifications(
domain: activeMastodonAuthenticationBox.domain,
query: query,
mastodonAuthenticationBox: activeMastodonAuthenticationBox)
.sink { completion in
switch completion {
case .failure(let error):
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: fetch notification failed. %s", ((#file as NSString).lastPathComponent), #line, #function, error.localizedDescription)
case .finished:
// handle isFetchingLatestTimeline in fetch controller delegate
break
}
stateMachine.enter(Idle.self)
} receiveValue: { [weak viewModel] response in
guard let viewModel = viewModel else { return }
if viewModel.selectedIndex.value == 1 {
let list = response.value.filter { $0.type == Mastodon.Entity.Notification.NotificationType.mention }
if list.isEmpty {
stateMachine.enter(NoMore.self)
} else {
stateMachine.enter(Idle.self)
}
} else {
if response.value.isEmpty {
stateMachine.enter(NoMore.self)
} else {
stateMachine.enter(Idle.self)
}
}
}
.store(in: &viewModel.disposeBag)
}
}
class Fail: NotificationViewModel.LoadOldestState {
override func isValidNextState(_ stateClass: AnyClass) -> Bool {
return stateClass == Loading.self || stateClass == Idle.self
}
}
class Idle: NotificationViewModel.LoadOldestState {
override func isValidNextState(_ stateClass: AnyClass) -> Bool {
return stateClass == Loading.self
}
}
class NoMore: NotificationViewModel.LoadOldestState {
override func isValidNextState(_ stateClass: AnyClass) -> Bool {
// reset state if needs
return stateClass == Idle.self
}
override func didEnter(from previousState: GKState?) {
guard let viewModel = viewModel else { return }
guard let diffableDataSource = viewModel.diffableDataSource else {
assertionFailure()
return
}
var snapshot = diffableDataSource.snapshot()
snapshot.deleteItems([.bottomLoader])
diffableDataSource.apply(snapshot)
}
}
}

16
Mastodon/Scene/Notification/NotificationViewModel.swift
View File

@ -23,6 +23,7 @@ final class NotificationViewModel: NSObject {
weak var contentOffsetAdjustableTimelineViewControllerDelegate: ContentOffsetAdjustableTimelineViewControllerDelegate?
let viewDidLoad = PassthroughSubject<Void, Never>()
let selectedIndex = CurrentValueSubject<Int,Never>(0)
let activeMastodonAuthenticationBox: CurrentValueSubject<AuthenticationService.MastodonAuthenticationBox?, Never>
let fetchedResultsController: NSFetchedResultsController<MastodonNotification>!
@ -48,6 +49,21 @@ final class NotificationViewModel: NSObject {
lazy var loadLatestStateMachinePublisher = CurrentValueSubject<LoadLatestState?, Never>(nil)
// bottom loader
private(set) lazy var loadoldestStateMachine: GKStateMachine = {
// exclude timeline middle fetcher state
let stateMachine = GKStateMachine(states: [
LoadOldestState.Initial(viewModel: self),
LoadOldestState.Loading(viewModel: self),
LoadOldestState.Fail(viewModel: self),
LoadOldestState.Idle(viewModel: self),
LoadOldestState.NoMore(viewModel: self),
])
stateMachine.enter(LoadOldestState.Initial.self)
return stateMachine
}()
lazy var loadOldestStateMachinePublisher = CurrentValueSubject<LoadOldestState?, Never>(nil)
init(context: AppContext) {
self.context = context
self.activeMastodonAuthenticationBox = CurrentValueSubject(context.authenticationService.activeMastodonAuthenticationBox.value)