element-ios/Riot/Modules/Threads/ThreadList/ThreadListViewController.swift

380 lines
15 KiB
Swift

// File created from ScreenTemplate
// $ createScreen.sh Threads/ThreadList ThreadList
/*
Copyright 2021 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import UIKit
final class ThreadListViewController: UIViewController {
// MARK: - Properties
// MARK: Outlets
@IBOutlet private weak var threadsTableView: UITableView!
@IBOutlet private weak var emptyView: ThreadListEmptyView!
// MARK: Private
private var viewModel: ThreadListViewModelProtocol!
private var theme: Theme!
private var keyboardAvoider: KeyboardAvoider?
private var errorPresenter: MXKErrorPresentation!
private var activityPresenter: ActivityIndicatorPresenter!
private var titleView: ThreadRoomTitleView!
// MARK: - Setup
class func instantiate(with viewModel: ThreadListViewModelProtocol) -> ThreadListViewController {
let viewController = StoryboardScene.ThreadListViewController.initialScene.instantiate()
viewController.viewModel = viewModel
viewController.theme = ThemeService.shared().theme
return viewController
}
// MARK: - Life cycle
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.setupViews()
self.keyboardAvoider = KeyboardAvoider(scrollViewContainerView: self.view, scrollView: self.threadsTableView)
self.activityPresenter = ActivityIndicatorPresenter()
self.errorPresenter = MXKErrorAlertPresentation()
self.registerThemeServiceDidChangeThemeNotification()
self.update(theme: self.theme)
self.viewModel.viewDelegate = self
self.viewModel.process(viewAction: .loadData)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.keyboardAvoider?.startAvoiding()
AnalyticsScreenTracker.trackScreen(.threadList)
}
override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
self.keyboardAvoider?.stopAvoiding()
}
override var preferredStatusBarStyle: UIStatusBarStyle {
return self.theme.statusBarStyle
}
override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
guard let titleView = self.titleView else { return }
if UIApplication.shared.statusBarOrientation.isPortrait {
titleView.updateLayout(for: .landscapeLeft)
} else {
titleView.updateLayout(for: .portrait)
}
}
// MARK: - Private
private func update(theme: Theme) {
self.theme = theme
self.view.backgroundColor = theme.headerBackgroundColor
if let navigationBar = self.navigationController?.navigationBar {
theme.applyStyle(onNavigationBar: navigationBar)
}
emptyView.update(theme: theme)
emptyView.backgroundColor = theme.colors.background
self.threadsTableView.backgroundColor = theme.backgroundColor
self.threadsTableView.separatorColor = theme.colors.separator
self.threadsTableView.reloadData()
}
private func registerThemeServiceDidChangeThemeNotification() {
NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
}
@objc private func themeDidChange() {
self.update(theme: ThemeService.shared().theme)
}
private func setupViews() {
let titleView = ThreadRoomTitleView.loadFromNib()
titleView.mode = .allThreads
titleView.configure(withModel: viewModel.titleModel)
titleView.updateLayout(for: UIApplication.shared.statusBarOrientation)
self.titleView = titleView
navigationItem.leftItemsSupplementBackButton = true
vc_removeBackTitle()
navigationItem.leftBarButtonItem = UIBarButtonItem(customView: titleView)
navigationItem.rightBarButtonItem = UIBarButtonItem(image: Asset.Images.threadsFilter.image,
style: .plain,
target: self,
action: #selector(filterButtonTapped(_:)))
self.threadsTableView.tableFooterView = UIView()
self.threadsTableView.register(cellType: ThreadTableViewCell.self)
self.threadsTableView.keyboardDismissMode = .interactive
}
private func render(viewState: ThreadListViewState) {
switch viewState {
case .idle:
break
case .loading:
renderLoading()
case .loaded:
renderLoaded()
case .empty(let model):
renderEmptyView(withModel: model)
case .showingFilterTypes:
renderShowingFilterTypes()
case .showingLongPressActions(let index):
renderShowingLongPressActions(index)
case .share(let url, let index):
renderShare(url, index: index)
case .toastForCopyLink:
toastForCopyLink()
case .error(let error):
render(error: error)
}
}
private func renderLoading() {
emptyView.isHidden = true
threadsTableView.isHidden = viewModel.numberOfThreads == 0
self.activityPresenter.presentActivityIndicator(on: self.view, animated: true)
}
private func renderLoaded() {
self.activityPresenter.removeCurrentActivityIndicator(animated: true)
threadsTableView.isHidden = false
self.threadsTableView.reloadData()
navigationItem.rightBarButtonItem?.isEnabled = true
switch viewModel.selectedFilterType {
case .all:
navigationItem.rightBarButtonItem?.image = Asset.Images.threadsFilter.image
case .myThreads:
navigationItem.rightBarButtonItem?.image = Asset.Images.threadsFilterApplied.image
}
}
private func renderEmptyView(withModel model: ThreadListEmptyModel) {
self.activityPresenter.removeCurrentActivityIndicator(animated: true)
emptyView.configure(withModel: model)
threadsTableView.isHidden = true
emptyView.isHidden = false
navigationItem.rightBarButtonItem?.isEnabled = viewModel.selectedFilterType == .myThreads
switch viewModel.selectedFilterType {
case .all:
navigationItem.rightBarButtonItem = nil
case .myThreads:
navigationItem.rightBarButtonItem?.image = Asset.Images.threadsFilterApplied.image
}
}
private func renderShowingFilterTypes() {
let alertController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
let allThreadsAction = UIAlertAction(title: ThreadListFilterType.all.title,
style: .default,
handler: { [weak self] action in
guard let self = self else { return }
self.viewModel.process(viewAction: .selectFilterType(.all))
})
if self.viewModel.selectedFilterType == .all {
allThreadsAction.setValue(true, forKey: "checked")
}
alertController.addAction(allThreadsAction)
let myThreadsAction = UIAlertAction(title: ThreadListFilterType.myThreads.title,
style: .default,
handler: { [weak self] action in
guard let self = self else { return }
self.viewModel.process(viewAction: .selectFilterType(.myThreads))
})
if self.viewModel.selectedFilterType == .myThreads {
myThreadsAction.setValue(true, forKey: "checked")
}
alertController.addAction(myThreadsAction)
alertController.addAction(UIAlertAction(title: VectorL10n.cancel,
style: .cancel,
handler: nil))
alertController.popoverPresentationController?.barButtonItem = navigationItem.rightBarButtonItem
self.present(alertController, animated: true, completion: nil)
}
private func renderShowingLongPressActions(_ index: Int) {
let controller = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
controller.addAction(UIAlertAction(title: VectorL10n.roomEventActionViewInRoom,
style: .default,
handler: { [weak self] action in
guard let self = self else { return }
self.viewModel.process(viewAction: .actionViewInRoom)
}))
controller.addAction(UIAlertAction(title: VectorL10n.threadCopyLinkToThread,
style: .default,
handler: { [weak self] action in
guard let self = self else { return }
self.viewModel.process(viewAction: .actionCopyLinkToThread)
}))
controller.addAction(UIAlertAction(title: VectorL10n.roomEventActionShare,
style: .default,
handler: { [weak self] action in
guard let self = self else { return }
self.viewModel.process(viewAction: .actionShare)
}))
controller.addAction(UIAlertAction(title: VectorL10n.cancel,
style: .cancel,
handler: nil))
if let cell = threadsTableView.cellForRow(at: IndexPath(row: index, section: 0)) {
controller.popoverPresentationController?.sourceView = cell
} else {
controller.popoverPresentationController?.sourceView = view
}
self.present(controller, animated: true, completion: nil)
}
private func renderShare(_ url: URL, index: Int) {
let activityVC = UIActivityViewController(activityItems: [url],
applicationActivities: nil)
activityVC.modalTransitionStyle = .coverVertical
if let cell = threadsTableView.cellForRow(at: IndexPath(row: index, section: 0)) {
activityVC.popoverPresentationController?.sourceView = cell
} else {
activityVC.popoverPresentationController?.sourceView = view
}
present(activityVC, animated: true, completion: nil)
}
private func toastForCopyLink() {
view.vc_toast(message: VectorL10n.roomEventCopyLinkInfo,
image: Asset.Images.linkIcon.image)
}
private func render(error: Error) {
self.activityPresenter.removeCurrentActivityIndicator(animated: true)
self.errorPresenter.presentError(from: self, forError: error, animated: true, handler: nil)
}
// MARK: - Actions
@objc
private func filterButtonTapped(_ sender: UIBarButtonItem) {
self.viewModel.process(viewAction: .showFilterTypes)
Analytics.shared.trackInteraction(.threadListFilterItem)
}
@IBAction private func longPressed(_ sender: UILongPressGestureRecognizer) {
guard sender.state == .began else {
return
}
let point = sender.location(in: threadsTableView)
guard let indexPath = threadsTableView.indexPathForRow(at: point) else {
return
}
guard let cell = threadsTableView.cellForRow(at: indexPath) else {
return
}
if cell.isHighlighted {
viewModel.process(viewAction: .longPressThread(indexPath.row))
}
}
}
// MARK: - ThreadListViewModelViewDelegate
extension ThreadListViewController: ThreadListViewModelViewDelegate {
func threadListViewModel(_ viewModel: ThreadListViewModelProtocol,
didUpdateViewState viewSate: ThreadListViewState) {
self.render(viewState: viewSate)
}
}
// MARK: - UITableViewDataSource
extension ThreadListViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return viewModel.numberOfThreads
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell: ThreadTableViewCell = tableView.dequeueReusableCell(for: indexPath)
cell.update(theme: theme)
if let threadModel = viewModel.threadModel(at: indexPath.row) {
cell.configure(withModel: threadModel)
}
return cell
}
}
// MARK: - UITableViewDelegate
extension ThreadListViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
cell.backgroundColor = theme.backgroundColor
cell.selectedBackgroundView = UIView()
cell.selectedBackgroundView?.backgroundColor = theme.selectedBackgroundColor
if indexPath.row == viewModel.numberOfThreads - 1 {
viewModel.process(viewAction: .loadData)
}
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
viewModel.process(viewAction: .selectThread(indexPath.row))
Analytics.shared.trackInteraction(.threadListThreadItem)
}
}
// MARK: - ThreadListEmptyViewDelegate
extension ThreadListViewController: ThreadListEmptyViewDelegate {
func threadListEmptyViewTappedShowAllThreads(_ emptyView: ThreadListEmptyView) {
viewModel.process(viewAction: .selectFilterType(.all))
}
}