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Use Context Menu in iOS 13+ when selecting episodes in AnimeViewController #241

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Use Context Menu in iOS 13+ when selecting episodes in AnimeViewController #241

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116 changes: 93 additions & 23 deletions NineAnimator/Controllers/Player Scene/AnimeViewController.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -1021,7 +1021,66 @@ extension AnimeViewController {

// MARK: - Actions for Episodes
extension AnimeViewController {
/// Context menu item that can cast to both UIAction and UIMenuItem
///
/// Used to support iOS 13+ and below
private struct BackwardsCompatibleContextMenuItem {
var title: String
var image: UIImage?
var action: Selector
weak var parent: AnimeViewController?

@available(iOS 13.0, *)
func toUIAction() -> UIAction {
.init(
title: title,
image: image,
handler: { _ in parent?.perform(action) }
)
}

func toUIMenuItem() -> UIMenuItem {
.init(title: title, action: action)
}
}

@available(iOS 13.0, *)
override func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
guard let targetCell = tableView.cellForRow(at: indexPath) else { return nil }

// Obtain the episode link
var targetEpisodeLink: EpisodeLink?

if let episodeCell = targetCell as? EpisodeTableViewCell {
targetEpisodeLink = episodeCell.episodeLink
} else if let episodeCell = targetCell as? DetailedEpisodeTableViewCell {
targetEpisodeLink = episodeCell.episodeLink
}

guard let unwrappedEpisodeLink = targetEpisodeLink else { return nil }

contextMenuSelectedEpisode = unwrappedEpisodeLink
contextMenuSelectedIndexPath = indexPath

return .init(
identifier: nil,
previewProvider: nil
) { [weak self] _ in
let availableUIAction = self?.generateMenuActions(for: unwrappedEpisodeLink)
.map { $0.toUIAction() }

return UIMenu(
title: "Episode: \(unwrappedEpisodeLink.name)",
identifier: nil,
options: [],
children: availableUIAction ?? []
)
}
}

@IBAction private func onLongPress(_ recognizer: UILongPressGestureRecognizer) {
// Only used as fallback in < iOS 13 devices
if #available(iOS 13.0, *) { return }
if recognizer.state == .began {
// Obtain the touch position, indexPath, and cell
let targetTouchPosition = recognizer.location(in: tableView)
Expand Down Expand Up @@ -1053,43 +1112,54 @@ extension AnimeViewController {

let targetRect = tableView.convert(sourceView.frame, to: view)
let editMenu = UIMenuController.shared
var availableMenuItems = [UIMenuItem]()

let availableMenuItems = generateMenuActions(for: episodeLink)
.map { $0.toUIMenuItem() }

// Save the available actions
editMenu.menuItems = availableMenuItems

if #available(iOS 13.0, *) {
editMenu.showMenu(from: view, rect: targetRect)
} else {
// Fallback on earlier versions
editMenu.setTargetRect(targetRect, in: view)
editMenu.setMenuVisible(true, animated: true)
}
}

private func generateMenuActions(for episodeLink: EpisodeLink) -> [BackwardsCompatibleContextMenuItem] {
var availableMenuItems = [BackwardsCompatibleContextMenuItem]()

switch episodeLink.playbackProgress {
case 0..<0.05:
availableMenuItems.append(UIMenuItem(
availableMenuItems.append(.init(
title: "Mark as Completed",
action: #selector(contextMenu(markAsWatched:))
action: #selector(contextMenuMarkAsWatched),
parent: self
))
case 0.05..<0.8:
availableMenuItems.append(UIMenuItem(
availableMenuItems.append(.init(
title: "Unwatch",
action: #selector(contextMenu(markAsUnwatched:))
action: #selector(contextMenuMarkAsUnwatched),
parent: self
))
availableMenuItems.append(UIMenuItem(
availableMenuItems.append(.init(
title: "Finished",
action: #selector(contextMenu(markAsWatched:))
action: #selector(contextMenuMarkAsWatched),
parent: self
))
default:
availableMenuItems.append(UIMenuItem(
availableMenuItems.append(.init(
title: "Unwatch",
action: #selector(contextMenu(markAsUnwatched:))
action: #selector(contextMenuMarkAsUnwatched),
parent: self
))
}

// Save the available actions
editMenu.menuItems = availableMenuItems

if #available(iOS 13.0, *) {
editMenu.showMenu(from: view, rect: targetRect)
} else {
// Fallback on earlier versions
editMenu.setTargetRect(targetRect, in: view)
editMenu.setMenuVisible(true, animated: true)
}
return availableMenuItems
}

@objc private func contextMenu(markAsWatched sender: UIMenuController) {
@objc func contextMenuMarkAsWatched() {
guard let selectedEpisodeLink = self.contextMenuSelectedEpisode,
let selectedIndexPath = self.contextMenuSelectedIndexPath,
let selectedEpisodeCell = tableView.cellForRow(at: selectedIndexPath),
Expand Down Expand Up @@ -1158,7 +1228,7 @@ extension AnimeViewController {
present(alertMessage, animated: true)
}

@objc private func contextMenu(markAsUnwatched sender: UIMenuController) {
@objc func contextMenuMarkAsUnwatched() {
if let episodeLink = contextMenuSelectedEpisode, let tracker = anime?.trackingContext {
tracker.update(progress: 0.0, forEpisodeLink: episodeLink)
}
Expand All @@ -1169,7 +1239,7 @@ extension AnimeViewController {
/// - Parameters:
/// - batchUpdatePerformed: Boolean indicating if more than 1 episode's progress has been updated.
private func concludeContextMenu(batchUpdatePerformed: Bool = false) {
/// Do not reload tableView if batch update has occured.
/// Do not reload tableView if batch update has occurred.
/// `onBatchPlaybackProgressDidUpdate(:_)` will handle reloading the tableView
if let targetIndexPath = contextMenuSelectedIndexPath, !batchUpdatePerformed {
tableView.performBatchUpdates({
Expand Down