mastodon-ios/Mastodon/Scene/Compose/ComposeViewController.swift

1408 lines
65 KiB
Swift

//
// ComposeViewController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-3-11.
//
import os.log
import UIKit
import Combine
import PhotosUI
import Kingfisher
import MastodonSDK
import TwitterTextEditor
import MetaTextView
import MastodonMeta
import Meta
final class ComposeViewController: UIViewController, NeedsDependency {
static let minAutoCompleteVisibleHeight: CGFloat = 100
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
var disposeBag = Set<AnyCancellable>()
var viewModel: ComposeViewModel!
let logger = Logger(subsystem: "ComposeViewController", category: "logic")
private var suffixedAttachmentViews: [UIView] = []
let publishButton: UIButton = {
let button = RoundedEdgesButton(type: .custom)
button.setTitle(L10n.Scene.Compose.composeAction, for: .normal)
button.titleLabel?.font = .systemFont(ofSize: 14, weight: .bold)
button.setBackgroundImage(.placeholder(color: Asset.Colors.brandBlue.color), for: .normal)
button.setBackgroundImage(.placeholder(color: Asset.Colors.brandBlue.color.withAlphaComponent(0.5)), for: .highlighted)
button.setBackgroundImage(.placeholder(color: Asset.Colors.Button.disabled.color), for: .disabled)
button.setTitleColor(.white, for: .normal)
button.contentEdgeInsets = UIEdgeInsets(top: 6, left: 16, bottom: 5, right: 16) // set 28pt height
button.adjustsImageWhenHighlighted = false
return button
}()
private(set) lazy var cancelBarButtonItem = UIBarButtonItem(title: L10n.Common.Controls.Actions.cancel, style: .plain, target: self, action: #selector(ComposeViewController.cancelBarButtonItemPressed(_:)))
private(set) lazy var publishBarButtonItem: UIBarButtonItem = {
let barButtonItem = UIBarButtonItem(customView: publishButton)
return barButtonItem
}()
let tableView: ComposeTableView = {
let tableView = ComposeTableView()
tableView.register(ComposeRepliedToStatusContentTableViewCell.self, forCellReuseIdentifier: String(describing: ComposeRepliedToStatusContentTableViewCell.self))
tableView.register(ComposeStatusContentTableViewCell.self, forCellReuseIdentifier: String(describing: ComposeStatusContentTableViewCell.self))
tableView.register(ComposeStatusAttachmentTableViewCell.self, forCellReuseIdentifier: String(describing: ComposeStatusAttachmentTableViewCell.self))
tableView.backgroundColor = Asset.Scene.Compose.background.color
tableView.alwaysBounceVertical = true
tableView.separatorStyle = .none
tableView.tableFooterView = UIView()
return tableView
}()
var systemKeyboardHeight: CGFloat = .zero {
didSet {
// note: some system AutoLayout warning here
let height = max(300, systemKeyboardHeight)
customEmojiPickerInputView.frame.size.height = height
}
}
// CustomEmojiPickerView
let customEmojiPickerInputView: CustomEmojiPickerInputView = {
let view = CustomEmojiPickerInputView(frame: CGRect(x: 0, y: 0, width: 0, height: 300), inputViewStyle: .keyboard)
return view
}()
let composeToolbarView = ComposeToolbarView()
var composeToolbarViewBottomLayoutConstraint: NSLayoutConstraint!
let composeToolbarBackgroundView = UIView()
static func createPhotoLibraryPickerConfiguration(selectionLimit: Int = 4) -> PHPickerConfiguration {
var configuration = PHPickerConfiguration()
configuration.filter = .any(of: [.images, .videos])
configuration.selectionLimit = selectionLimit
return configuration
}
private(set) lazy var photoLibraryPicker: PHPickerViewController = {
let imagePicker = PHPickerViewController(configuration: ComposeViewController.createPhotoLibraryPickerConfiguration())
imagePicker.delegate = self
return imagePicker
}()
private(set) lazy var imagePickerController: UIImagePickerController = {
let imagePickerController = UIImagePickerController()
imagePickerController.sourceType = .camera
imagePickerController.delegate = self
return imagePickerController
}()
private(set) lazy var documentPickerController: UIDocumentPickerViewController = {
let documentPickerController = UIDocumentPickerViewController(forOpeningContentTypes: [.image, .movie])
documentPickerController.delegate = self
return documentPickerController
}()
private(set) lazy var autoCompleteViewController: AutoCompleteViewController = {
let viewController = AutoCompleteViewController()
viewController.viewModel = AutoCompleteViewModel(context: context)
viewController.delegate = self
viewModel.customEmojiViewModel
.assign(to: \.value, on: viewController.viewModel.customEmojiViewModel)
.store(in: &disposeBag)
return viewController
}()
deinit {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
}
}
extension ComposeViewController {
private static func createLayout() -> UICollectionViewLayout {
let itemSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0), heightDimension: .estimated(44))
let item = NSCollectionLayoutItem(layoutSize: itemSize)
let groupSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0), heightDimension: .estimated(44))
let group = NSCollectionLayoutGroup.vertical(layoutSize: groupSize, subitems: [item])
let section = NSCollectionLayoutSection(group: group)
section.contentInsetsReference = .readableContent
// section.interGroupSpacing = 10
// section.contentInsets = NSDirectionalEdgeInsets(top: 10, leading: 10, bottom: 10, trailing: 10)
return UICollectionViewCompositionalLayout(section: section)
}
}
extension ComposeViewController {
override func viewDidLoad() {
super.viewDidLoad()
viewModel.title
.receive(on: DispatchQueue.main)
.sink { [weak self] title in
guard let self = self else { return }
self.title = title
}
.store(in: &disposeBag)
view.backgroundColor = Asset.Scene.Compose.background.color
navigationItem.leftBarButtonItem = cancelBarButtonItem
navigationItem.rightBarButtonItem = publishBarButtonItem
publishButton.addTarget(self, action: #selector(ComposeViewController.publishBarButtonItemPressed(_:)), for: .touchUpInside)
tableView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(tableView)
NSLayoutConstraint.activate([
tableView.topAnchor.constraint(equalTo: view.topAnchor),
tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
])
composeToolbarView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(composeToolbarView)
composeToolbarViewBottomLayoutConstraint = view.bottomAnchor.constraint(equalTo: composeToolbarView.bottomAnchor)
NSLayoutConstraint.activate([
composeToolbarView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
composeToolbarView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
composeToolbarViewBottomLayoutConstraint,
composeToolbarView.heightAnchor.constraint(equalToConstant: ComposeToolbarView.toolbarHeight),
])
composeToolbarView.preservesSuperviewLayoutMargins = true
composeToolbarView.delegate = self
composeToolbarBackgroundView.translatesAutoresizingMaskIntoConstraints = false
view.insertSubview(composeToolbarBackgroundView, belowSubview: composeToolbarView)
NSLayoutConstraint.activate([
composeToolbarBackgroundView.topAnchor.constraint(equalTo: composeToolbarView.topAnchor),
composeToolbarBackgroundView.leadingAnchor.constraint(equalTo: composeToolbarView.leadingAnchor),
composeToolbarBackgroundView.trailingAnchor.constraint(equalTo: composeToolbarView.trailingAnchor),
view.bottomAnchor.constraint(equalTo: composeToolbarBackgroundView.bottomAnchor),
])
tableView.delegate = self
viewModel.setupDiffableDataSource(
tableView: tableView,
metaTextDelegate: self,
metaTextViewDelegate: self,
customEmojiPickerInputViewModel: viewModel.customEmojiPickerInputViewModel,
composeStatusAttachmentCollectionViewCellDelegate: self,
composeStatusPollOptionCollectionViewCellDelegate: self,
composeStatusPollOptionAppendEntryCollectionViewCellDelegate: self,
composeStatusPollExpiresOptionCollectionViewCellDelegate: self
)
viewModel.composeStatusAttribute.composeContent
.removeDuplicates()
.receive(on: RunLoop.main)
.sink { [weak self] _ in
guard let self = self else { return }
guard self.view.window != nil else { return }
UIView.performWithoutAnimation {
self.tableView.beginUpdates()
self.tableView.endUpdates()
}
}
.store(in: &disposeBag)
customEmojiPickerInputView.collectionView.delegate = self
viewModel.customEmojiPickerInputViewModel.customEmojiPickerInputView = customEmojiPickerInputView
viewModel.setupCustomEmojiPickerDiffableDataSource(
for: customEmojiPickerInputView.collectionView,
dependency: self
)
// update layout when keyboard show/dismiss
view.layoutIfNeeded()
let keyboardEventPublishers = Publishers.CombineLatest3(
KeyboardResponderService.shared.isShow,
KeyboardResponderService.shared.state,
KeyboardResponderService.shared.endFrame
)
Publishers.CombineLatest3(
keyboardEventPublishers,
viewModel.isCustomEmojiComposing,
viewModel.autoCompleteInfo
)
.sink(receiveValue: { [weak self] keyboardEvents, isCustomEmojiComposing, autoCompleteInfo in
guard let self = self else { return }
let (isShow, state, endFrame) = keyboardEvents
let extraMargin: CGFloat = {
var margin = self.composeToolbarView.frame.height
if autoCompleteInfo != nil {
margin += ComposeViewController.minAutoCompleteVisibleHeight
}
return margin
}()
// update keyboard background color
guard isShow, state == .dock else {
self.tableView.contentInset.bottom = extraMargin
self.tableView.verticalScrollIndicatorInsets.bottom = extraMargin
if let superView = self.autoCompleteViewController.tableView.superview {
let autoCompleteTableViewBottomInset: CGFloat = {
let tableViewFrameInWindow = superView.convert(self.autoCompleteViewController.tableView.frame, to: nil)
let padding = tableViewFrameInWindow.maxY + self.composeToolbarView.frame.height + AutoCompleteViewController.chevronViewHeight - self.view.frame.maxY
return max(0, padding)
}()
self.autoCompleteViewController.tableView.contentInset.bottom = autoCompleteTableViewBottomInset
self.autoCompleteViewController.tableView.verticalScrollIndicatorInsets.bottom = autoCompleteTableViewBottomInset
}
UIView.animate(withDuration: 0.3) {
self.composeToolbarViewBottomLayoutConstraint.constant = self.view.safeAreaInsets.bottom
if self.view.window != nil {
self.view.layoutIfNeeded()
}
}
self.updateKeyboardBackground(isKeyboardDisplay: isShow)
return
}
// isShow AND dock state
self.systemKeyboardHeight = endFrame.height
// adjust inset for auto-complete
let autoCompleteTableViewBottomInset: CGFloat = {
guard let superview = self.autoCompleteViewController.tableView.superview else { return .zero }
let tableViewFrameInWindow = superview.convert(self.autoCompleteViewController.tableView.frame, to: nil)
let padding = tableViewFrameInWindow.maxY + self.composeToolbarView.frame.height + AutoCompleteViewController.chevronViewHeight - endFrame.minY
return max(0, padding)
}()
self.autoCompleteViewController.tableView.contentInset.bottom = autoCompleteTableViewBottomInset
self.autoCompleteViewController.tableView.verticalScrollIndicatorInsets.bottom = autoCompleteTableViewBottomInset
// adjust inset for collectionView
let contentFrame = self.view.convert(self.tableView.frame, to: nil)
let padding = contentFrame.maxY + extraMargin - endFrame.minY
guard padding > 0 else {
self.tableView.contentInset.bottom = self.view.safeAreaInsets.bottom + extraMargin
self.tableView.verticalScrollIndicatorInsets.bottom = self.view.safeAreaInsets.bottom + extraMargin
self.updateKeyboardBackground(isKeyboardDisplay: false)
return
}
self.tableView.contentInset.bottom = padding - self.view.safeAreaInsets.bottom
self.tableView.verticalScrollIndicatorInsets.bottom = padding - self.view.safeAreaInsets.bottom
UIView.animate(withDuration: 0.3) {
self.composeToolbarViewBottomLayoutConstraint.constant = endFrame.height
self.view.layoutIfNeeded()
}
self.updateKeyboardBackground(isKeyboardDisplay: isShow)
})
.store(in: &disposeBag)
// bind auto-complete
viewModel.autoCompleteInfo
.receive(on: DispatchQueue.main)
.sink { [weak self] info in
guard let self = self else { return }
guard let textEditorView = self.textEditorView() else { return }
if self.autoCompleteViewController.view.superview == nil {
self.autoCompleteViewController.view.frame = self.view.bounds
// add to container view. seealso: `viewDidLayoutSubviews()`
self.viewModel.composeStatusContentTableViewCell.textEditorViewContainerView.addSubview(self.autoCompleteViewController.view)
self.addChild(self.autoCompleteViewController)
self.autoCompleteViewController.didMove(toParent: self)
self.autoCompleteViewController.view.isHidden = true
self.tableView.autoCompleteViewController = self.autoCompleteViewController
}
self.updateAutoCompleteViewControllerLayout()
self.autoCompleteViewController.view.isHidden = info == nil
guard let info = info else { return }
let symbolBoundingRectInContainer = textEditorView.textView.convert(info.symbolBoundingRect, to: self.autoCompleteViewController.chevronView)
self.autoCompleteViewController.view.frame.origin.y = info.textBoundingRect.maxY
self.autoCompleteViewController.viewModel.symbolBoundingRect.value = symbolBoundingRectInContainer
self.autoCompleteViewController.viewModel.inputText.value = String(info.inputText)
}
.store(in: &disposeBag)
// bind publish bar button state
viewModel.isPublishBarButtonItemEnabled
.receive(on: DispatchQueue.main)
.assign(to: \.isEnabled, on: publishBarButtonItem)
.store(in: &disposeBag)
// bind media button toolbar state
viewModel.isMediaToolbarButtonEnabled
.receive(on: DispatchQueue.main)
.assign(to: \.isEnabled, on: composeToolbarView.mediaButton)
.store(in: &disposeBag)
// bind poll button toolbar state
viewModel.isPollToolbarButtonEnabled
.receive(on: DispatchQueue.main)
.assign(to: \.isEnabled, on: composeToolbarView.pollButton)
.store(in: &disposeBag)
Publishers.CombineLatest(
viewModel.isPollComposing,
viewModel.isPollToolbarButtonEnabled
)
.receive(on: DispatchQueue.main)
.sink { [weak self] isPollComposing, isPollToolbarButtonEnabled in
guard let self = self else { return }
guard isPollToolbarButtonEnabled else {
self.composeToolbarView.pollButton.accessibilityLabel = L10n.Scene.Compose.Accessibility.appendPoll
return
}
self.composeToolbarView.pollButton.accessibilityLabel = isPollComposing ? L10n.Scene.Compose.Accessibility.removePoll : L10n.Scene.Compose.Accessibility.appendPoll
}
.store(in: &disposeBag)
// bind image picker toolbar state
viewModel.attachmentServices
.receive(on: DispatchQueue.main)
.sink { [weak self] attachmentServices in
guard let self = self else { return }
self.composeToolbarView.mediaButton.isEnabled = attachmentServices.count < 4
self.resetImagePicker()
}
.store(in: &disposeBag)
// bind content warning button state
viewModel.isContentWarningComposing
.receive(on: DispatchQueue.main)
.sink { [weak self] isContentWarningComposing in
guard let self = self else { return }
self.composeToolbarView.contentWarningButton.accessibilityLabel = isContentWarningComposing ? L10n.Scene.Compose.Accessibility.disableContentWarning : L10n.Scene.Compose.Accessibility.enableContentWarning
}
.store(in: &disposeBag)
// bind visibility toolbar UI
Publishers.CombineLatest(
viewModel.selectedStatusVisibility,
viewModel.traitCollectionDidChangePublisher
)
.receive(on: DispatchQueue.main)
.sink { [weak self] type, _ in
guard let self = self else { return }
let image = type.image(interfaceStyle: self.traitCollection.userInterfaceStyle)
self.composeToolbarView.visibilityButton.setImage(image, for: .normal)
self.composeToolbarView.activeVisibilityType.value = type
}
.store(in: &disposeBag)
viewModel.characterCount
.receive(on: DispatchQueue.main)
.sink { [weak self] characterCount in
guard let self = self else { return }
let count = ComposeViewModel.composeContentLimit - characterCount
self.composeToolbarView.characterCountLabel.text = "\(count)"
switch count {
case _ where count < 0:
self.composeToolbarView.characterCountLabel.font = .monospacedDigitSystemFont(ofSize: 24, weight: .bold)
self.composeToolbarView.characterCountLabel.textColor = Asset.Colors.danger.color
self.composeToolbarView.characterCountLabel.accessibilityLabel = L10n.Scene.Compose.Accessibility.inputLimitExceedsCount(abs(count))
default:
self.composeToolbarView.characterCountLabel.font = .monospacedDigitSystemFont(ofSize: 15, weight: .regular)
self.composeToolbarView.characterCountLabel.textColor = Asset.Colors.Label.secondary.color
self.composeToolbarView.characterCountLabel.accessibilityLabel = L10n.Scene.Compose.Accessibility.inputLimitRemainsCount(count)
}
}
.store(in: &disposeBag)
// bind custom emoji picker UI
viewModel.customEmojiViewModel
.map { viewModel -> AnyPublisher<[Mastodon.Entity.Emoji], Never> in
guard let viewModel = viewModel else {
return Just([]).eraseToAnyPublisher()
}
return viewModel.emojis.eraseToAnyPublisher()
}
.switchToLatest()
.receive(on: DispatchQueue.main)
.sink(receiveValue: { [weak self] emojis in
guard let self = self else { return }
if emojis.isEmpty {
self.customEmojiPickerInputView.activityIndicatorView.startAnimating()
} else {
self.customEmojiPickerInputView.activityIndicatorView.stopAnimating()
}
})
.store(in: &disposeBag)
// setup snap behavior
Publishers.CombineLatest(
viewModel.repliedToCellFrame,
viewModel.collectionViewState
)
.receive(on: DispatchQueue.main)
.sink { [weak self] repliedToCellFrame, collectionViewState in
guard let self = self else { return }
guard repliedToCellFrame != .zero else { return }
switch collectionViewState {
case .fold:
self.tableView.contentInset.top = -repliedToCellFrame.height
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: set contentInset.top: -%s", ((#file as NSString).lastPathComponent), #line, #function, repliedToCellFrame.height.description)
case .expand:
self.tableView.contentInset.top = 0
}
}
.store(in: &disposeBag)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
// using index to make table view layout
// otherwise, the content offset will be wrong
guard let indexPath = tableView.indexPath(for: viewModel.composeStatusContentTableViewCell),
let cell = tableView.cellForRow(at: indexPath) as? ComposeStatusContentTableViewCell else {
assertionFailure()
return
}
cell.metaText.textView.becomeFirstResponder()
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
viewModel.isViewAppeared = true
}
override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
super.traitCollectionDidChange(previousTraitCollection)
viewModel.traitCollectionDidChangePublisher.send()
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
updateAutoCompleteViewControllerLayout()
}
func updateAutoCompleteViewControllerLayout() {
// pin autoCompleteViewController frame to current view
if let containerView = autoCompleteViewController.view.superview {
let viewFrameInWindow = containerView.convert(autoCompleteViewController.view.frame, to: view)
if viewFrameInWindow.origin.x != 0 {
autoCompleteViewController.view.frame.origin.x = -viewFrameInWindow.origin.x
}
autoCompleteViewController.view.frame.size.width = view.frame.width
}
}
}
extension ComposeViewController {
private func textEditorView() -> MetaText? {
return viewModel.composeStatusContentTableViewCell.metaText
}
private func markTextEditorViewBecomeFirstResponser() {
textEditorView()?.textView.becomeFirstResponder()
}
private func contentWarningEditorTextView() -> UITextView? {
viewModel.composeStatusContentTableViewCell.statusContentWarningEditorView.textView
}
private func pollOptionCollectionViewCell(of item: ComposeStatusPollItem) -> ComposeStatusPollOptionCollectionViewCell? {
guard case .pollOption = item else { return nil }
guard let dataSource = viewModel.composeStatusPollTableViewCell.dataSource else { return nil }
guard let indexPath = dataSource.indexPath(for: item),
let cell = viewModel.composeStatusPollTableViewCell.collectionView.cellForItem(at: indexPath) as? ComposeStatusPollOptionCollectionViewCell else {
return nil
}
return cell
}
private func firstPollOptionCollectionViewCell() -> ComposeStatusPollOptionCollectionViewCell? {
guard let dataSource = viewModel.composeStatusPollTableViewCell.dataSource else { return nil }
let items = dataSource.snapshot().itemIdentifiers(inSection: .main)
let firstPollItem = items.first { item -> Bool in
guard case .pollOption = item else { return false }
return true
}
guard let item = firstPollItem else {
return nil
}
return pollOptionCollectionViewCell(of: item)
}
private func lastPollOptionCollectionViewCell() -> ComposeStatusPollOptionCollectionViewCell? {
guard let dataSource = viewModel.composeStatusPollTableViewCell.dataSource else { return nil }
let items = dataSource.snapshot().itemIdentifiers(inSection: .main)
let lastPollItem = items.last { item -> Bool in
guard case .pollOption = item else { return false }
return true
}
guard let item = lastPollItem else {
return nil
}
return pollOptionCollectionViewCell(of: item)
}
private func markFirstPollOptionCollectionViewCellBecomeFirstResponser() {
guard let cell = firstPollOptionCollectionViewCell() else { return }
cell.pollOptionView.optionTextField.becomeFirstResponder()
}
private func markLastPollOptionCollectionViewCellBecomeFirstResponser() {
guard let cell = lastPollOptionCollectionViewCell() else { return }
cell.pollOptionView.optionTextField.becomeFirstResponder()
}
private func showDismissConfirmAlertController() {
let alertController = UIAlertController(
title: L10n.Common.Alerts.DiscardPostContent.title,
message: L10n.Common.Alerts.DiscardPostContent.message,
preferredStyle: .alert
)
let discardAction = UIAlertAction(title: L10n.Common.Controls.Actions.discard, style: .destructive) { [weak self] _ in
guard let self = self else { return }
self.dismiss(animated: true, completion: nil)
}
alertController.addAction(discardAction)
let cancelAction = UIAlertAction(title: L10n.Common.Controls.Actions.cancel, style: .cancel)
alertController.addAction(cancelAction)
present(alertController, animated: true, completion: nil)
}
private func resetImagePicker() {
let selectionLimit = max(1, 4 - viewModel.attachmentServices.value.count)
let configuration = ComposeViewController.createPhotoLibraryPickerConfiguration(selectionLimit: selectionLimit)
photoLibraryPicker = createImagePicker(configuration: configuration)
}
private func createImagePicker(configuration: PHPickerConfiguration) -> PHPickerViewController {
let imagePicker = PHPickerViewController(configuration: configuration)
imagePicker.delegate = self
return imagePicker
}
private func updateKeyboardBackground(isKeyboardDisplay: Bool) {
guard isKeyboardDisplay else {
composeToolbarBackgroundView.backgroundColor = Asset.Scene.Compose.toolbarBackground.color
return
}
composeToolbarBackgroundView.backgroundColor = UIColor(dynamicProvider: { traitCollection -> UIColor in
// avoid elevated color
switch traitCollection.userInterfaceStyle {
case .light: return .white
default: return .black
}
})
}
}
extension ComposeViewController {
@objc private func cancelBarButtonItemPressed(_ sender: UIBarButtonItem) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
guard viewModel.shouldDismiss.value else {
showDismissConfirmAlertController()
return
}
dismiss(animated: true, completion: nil)
}
@objc private func publishBarButtonItemPressed(_ sender: UIBarButtonItem) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
do {
try viewModel.checkAttachmentPrecondition()
} catch {
let alertController = UIAlertController(for: error, title: nil, preferredStyle: .alert)
let okAction = UIAlertAction(title: L10n.Common.Controls.Actions.ok, style: .default, handler: nil)
alertController.addAction(okAction)
coordinator.present(scene: .alertController(alertController: alertController), from: nil, transition: .alertController(animated: true, completion: nil))
return
}
guard viewModel.publishStateMachine.enter(ComposeViewModel.PublishState.Publishing.self) else {
// TODO: handle error
return
}
context.statusPublishService.publish(composeViewModel: viewModel)
dismiss(animated: true, completion: nil)
}
}
// MARK: - MetaTextDelegate
extension ComposeViewController: MetaTextDelegate {
func metaText(_ metaText: MetaText, processEditing textStorage: MetaTextStorage) -> MetaContent? {
let string = metaText.textStorage.string
let content = MastodonContent(
content: string,
emojis: viewModel.customEmojiViewModel.value?.emojiMapping.value ?? [:]
)
let metaContent = MastodonMetaContent.convert(text: content)
return metaContent
}
}
// MARK: - UITextViewDelegate
extension ComposeViewController: UITextViewDelegate {
func textViewDidChange(_ textView: UITextView) {
if textEditorView()?.textView === textView {
// update model
guard let metaText = textEditorView() else { return }
let backedString = metaText.backedString
viewModel.composeStatusAttribute.composeContent.value = backedString
logger.debug("\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): \(backedString)")
// configure auto completion
setupAutoComplete(for: textView)
}
}
struct AutoCompleteInfo {
// model
let inputText: Substring
// range
let symbolRange: Range<String.Index>
let symbolString: Substring
let toCursorRange: Range<String.Index>
let toCursorString: Substring
let toHighlightEndRange: Range<String.Index>
let toHighlightEndString: Substring
// geometry
var textBoundingRect: CGRect = .zero
var symbolBoundingRect: CGRect = .zero
}
private func setupAutoComplete(for textView: UITextView) {
guard var autoCompletion = ComposeViewController.scanAutoCompleteInfo(textView: textView) else {
viewModel.autoCompleteInfo.value = nil
return
}
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: auto complete %s (%s)", ((#file as NSString).lastPathComponent), #line, #function, String(autoCompletion.toHighlightEndString), String(autoCompletion.toCursorString))
// get layout text bounding rect
var glyphRange = NSRange()
textView.layoutManager.characterRange(forGlyphRange: NSRange(autoCompletion.toCursorRange, in: textView.text), actualGlyphRange: &glyphRange)
let textContainer = textView.layoutManager.textContainers[0]
let textBoundingRect = textView.layoutManager.boundingRect(forGlyphRange: glyphRange, in: textContainer)
let retryLayoutTimes = viewModel.autoCompleteRetryLayoutTimes.value
guard textBoundingRect.size != .zero else {
viewModel.autoCompleteRetryLayoutTimes.value += 1
// avoid infinite loop
guard retryLayoutTimes < 3 else { return }
// needs retry calculate layout when the rect position changing
DispatchQueue.main.async {
self.setupAutoComplete(for: textView)
}
return
}
viewModel.autoCompleteRetryLayoutTimes.value = 0
// get symbol bounding rect
textView.layoutManager.characterRange(forGlyphRange: NSRange(autoCompletion.symbolRange, in: textView.text), actualGlyphRange: &glyphRange)
let symbolBoundingRect = textView.layoutManager.boundingRect(forGlyphRange: glyphRange, in: textContainer)
// set bounding rect and trigger layout
autoCompletion.textBoundingRect = textBoundingRect
autoCompletion.symbolBoundingRect = symbolBoundingRect
viewModel.autoCompleteInfo.value = autoCompletion
}
private static func scanAutoCompleteInfo(textView: UITextView) -> AutoCompleteInfo? {
guard let text = textView.text,
textView.selectedRange.location > 0, !text.isEmpty,
let selectedRange = Range(textView.selectedRange, in: text) else {
return nil
}
let cursorIndex = selectedRange.upperBound
let _highlightStartIndex: String.Index? = {
var index = text.index(before: cursorIndex)
while index > text.startIndex {
let char = text[index]
if char == "@" || char == "#" || char == ":" {
return index
}
index = text.index(before: index)
}
assert(index == text.startIndex)
let char = text[index]
if char == "@" || char == "#" || char == ":" {
return index
} else {
return nil
}
}()
guard let highlightStartIndex = _highlightStartIndex else { return nil }
let scanRange = NSRange(highlightStartIndex..<text.endIndex, in: text)
guard let match = text.firstMatch(pattern: MastodonRegex.autoCompletePattern, options: [], range: scanRange) else { return nil }
guard let matchRange = Range(match.range(at: 0), in: text) else { return nil }
let matchStartIndex = matchRange.lowerBound
let matchEndIndex = matchRange.upperBound
guard matchStartIndex == highlightStartIndex, matchEndIndex >= cursorIndex else { return nil }
let symbolRange = highlightStartIndex..<text.index(after: highlightStartIndex)
let symbolString = text[symbolRange]
let toCursorRange = highlightStartIndex..<cursorIndex
let toCursorString = text[toCursorRange]
let toHighlightEndRange = matchStartIndex..<matchEndIndex
let toHighlightEndString = text[toHighlightEndRange]
let inputText = toHighlightEndString
let autoCompleteInfo = AutoCompleteInfo(
inputText: inputText,
symbolRange: symbolRange,
symbolString: symbolString,
toCursorRange: toCursorRange,
toCursorString: toCursorString,
toHighlightEndRange: toHighlightEndRange,
toHighlightEndString: toHighlightEndString
)
return autoCompleteInfo
}
func textView(_ textView: UITextView, shouldInteractWith URL: URL, in characterRange: NSRange, interaction: UITextItemInteraction) -> Bool {
if textView === textEditorView()?.textView {
return false
}
return true
}
func textView(_ textView: UITextView, shouldInteractWith textAttachment: NSTextAttachment, in characterRange: NSRange, interaction: UITextItemInteraction) -> Bool {
if textView === textEditorView()?.textView {
return false
}
return true
}
}
// MARK: - TextEditorViewTextAttributesDelegate
extension ComposeViewController: TextEditorViewTextAttributesDelegate {
func textEditorView(
_ textEditorView: TextEditorView,
updateAttributedString attributedString: NSAttributedString,
completion: @escaping (NSAttributedString?) -> Void
) {
// FIXME: needs O(1) update completion to fix performance issue
DispatchQueue.global().async {
let string = attributedString.string
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: update: %s", ((#file as NSString).lastPathComponent), #line, #function, string)
let stringRange = NSRange(location: 0, length: string.length)
let highlightMatches = string.matches(pattern: MastodonRegex.highlightPattern)
let emojiMatches = string.matches(pattern: MastodonRegex.emojiPattern)
// only accept http/https scheme
let urlMatches = string.matches(pattern: "(?i)https?://\\S+(?:/|\\b)")
DispatchQueue.main.async { [weak self] in
guard let self = self else {
completion(nil)
return
}
let customEmojiViewModel = self.viewModel.customEmojiViewModel.value
for view in self.suffixedAttachmentViews {
view.removeFromSuperview()
}
self.suffixedAttachmentViews.removeAll()
// set normal appearance
let attributedString = NSMutableAttributedString(attributedString: attributedString)
attributedString.removeAttribute(.suffixedAttachment, range: stringRange)
attributedString.removeAttribute(.underlineStyle, range: stringRange)
attributedString.addAttribute(.foregroundColor, value: Asset.Colors.Label.primary.color, range: stringRange)
attributedString.addAttribute(.font, value: UIFont.preferredFont(forTextStyle: .body), range: stringRange)
// hashtag
for match in highlightMatches {
// set highlight
var attributes = [NSAttributedString.Key: Any]()
attributes[.foregroundColor] = Asset.Colors.brandBlue.color
// See `traitCollectionDidChange(_:)`
// set accessibility
if #available(iOS 13.0, *) {
switch self.traitCollection.accessibilityContrast {
case .high:
attributes[.underlineStyle] = NSUnderlineStyle.single.rawValue
default:
break
}
}
attributedString.addAttributes(attributes, range: match.range)
}
// emoji
if let customEmojiViewModel = customEmojiViewModel, !customEmojiViewModel.emojiDict.value.isEmpty {
for match in emojiMatches {
guard let name = string.substring(with: match, at: 2) else { continue }
guard let emoji = customEmojiViewModel.emoji(shortcode: name) else { continue }
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: handle emoji: %s", ((#file as NSString).lastPathComponent), #line, #function, name)
// set emoji token invisible (without upper bounce space)
var attributes = [NSAttributedString.Key: Any]()
attributes[.font] = UIFont.systemFont(ofSize: 0.01)
attributedString.addAttributes(attributes, range: match.range)
// append emoji attachment
let imageViewSize = CGSize(width: 20, height: 20)
let imageView = UIImageView(frame: CGRect(origin: .zero, size: imageViewSize))
textEditorView.textContentView.addSubview(imageView)
self.suffixedAttachmentViews.append(imageView)
let processor = DownsamplingImageProcessor(size: imageViewSize)
imageView.kf.setImage(
with: URL(string: emoji.url),
placeholder: UIImage.placeholder(size: imageViewSize, color: .systemFill),
options: [
.processor(processor),
.scaleFactor(textEditorView.traitCollection.displayScale),
], completionHandler: nil
)
let layoutInTextContainer = { [weak textEditorView] (view: UIView, frame: CGRect) in
// `textEditorView` retains `textStorage`, which retains this block as a part of attributes.
guard let textEditorView = textEditorView else {
return
}
let insets = textEditorView.textContentInsets
view.frame = frame.offsetBy(dx: insets.left, dy: insets.top)
}
let attachment = TextAttributes.SuffixedAttachment(
size: imageViewSize,
attachment: .view(view: imageView, layoutInTextContainer: layoutInTextContainer)
)
let index = match.range.upperBound - 1
attributedString.addAttribute(
.suffixedAttachment,
value: attachment,
range: NSRange(location: index, length: 1)
)
}
}
// url
for match in urlMatches {
guard let name = string.substring(with: match, at: 0) else { continue }
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: handle emoji: %s", ((#file as NSString).lastPathComponent), #line, #function, name)
// set highlight
var attributes = [NSAttributedString.Key: Any]()
attributes[.foregroundColor] = Asset.Colors.brandBlue.color
// See `traitCollectionDidChange(_:)`
// set accessibility
if #available(iOS 13.0, *) {
switch self.traitCollection.accessibilityContrast {
case .high:
attributes[.underlineStyle] = NSUnderlineStyle.single.rawValue
default:
break
}
}
attributedString.addAttributes(attributes, range: match.range)
}
if string.count > ComposeViewModel.composeContentLimit {
var attributes = [NSAttributedString.Key: Any]()
attributes[.foregroundColor] = Asset.Colors.danger.color
let boundStart = string.index(string.startIndex, offsetBy: ComposeViewModel.composeContentLimit)
let boundEnd = string.endIndex
let range = boundStart..<boundEnd
attributedString.addAttributes(attributes, range: NSRange(range, in: string))
}
completion(attributedString)
}
}
}
}
// MARK: - ComposeToolbarViewDelegate
extension ComposeViewController: ComposeToolbarViewDelegate {
func composeToolbarView(_ composeToolbarView: ComposeToolbarView, cameraButtonDidPressed sender: UIButton, mediaSelectionType type: ComposeToolbarView.MediaSelectionType) {
switch type {
case .photoLibrary:
present(photoLibraryPicker, animated: true, completion: nil)
case .camera:
present(imagePickerController, animated: true, completion: nil)
case .browse:
present(documentPickerController, animated: true, completion: nil)
}
}
func composeToolbarView(_ composeToolbarView: ComposeToolbarView, pollButtonDidPressed sender: UIButton) {
viewModel.isPollComposing.value.toggle()
// setup initial poll option if needs
if viewModel.isPollComposing.value, viewModel.pollOptionAttributes.value.isEmpty {
viewModel.pollOptionAttributes.value = [ComposeStatusPollItem.PollOptionAttribute(), ComposeStatusPollItem.PollOptionAttribute()]
}
if viewModel.isPollComposing.value {
// Magic RunLoop
DispatchQueue.main.async {
self.markFirstPollOptionCollectionViewCellBecomeFirstResponser()
}
} else {
markTextEditorViewBecomeFirstResponser()
}
}
func composeToolbarView(_ composeToolbarView: ComposeToolbarView, emojiButtonDidPressed sender: UIButton) {
viewModel.isCustomEmojiComposing.value.toggle()
}
func composeToolbarView(_ composeToolbarView: ComposeToolbarView, contentWarningButtonDidPressed sender: UIButton) {
// restore first responder for text editor when content warning dismiss
if viewModel.isContentWarningComposing.value {
if contentWarningEditorTextView()?.isFirstResponder == true {
markTextEditorViewBecomeFirstResponser()
}
}
// toggle composing status
viewModel.isContentWarningComposing.value.toggle()
// active content warning after toggled
if viewModel.isContentWarningComposing.value {
contentWarningEditorTextView()?.becomeFirstResponder()
}
}
func composeToolbarView(_ composeToolbarView: ComposeToolbarView, visibilityButtonDidPressed sender: UIButton, visibilitySelectionType type: ComposeToolbarView.VisibilitySelectionType) {
viewModel.selectedStatusVisibility.value = type
}
}
// MARK: - UIScrollViewDelegate
extension ComposeViewController {
func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
guard scrollView === tableView else { return }
let repliedToCellFrame = viewModel.repliedToCellFrame.value
guard repliedToCellFrame != .zero else { return }
let throttle = viewModel.repliedToCellFrame.value.height - scrollView.adjustedContentInset.top
// print("\(throttle) - \(scrollView.contentOffset.y)")
switch viewModel.collectionViewState.value {
case .fold:
if scrollView.contentOffset.y < throttle {
viewModel.collectionViewState.value = .expand
}
os_log("%{public}s[%{public}ld], %{public}s: fold", ((#file as NSString).lastPathComponent), #line, #function)
case .expand:
if scrollView.contentOffset.y > -44 {
viewModel.collectionViewState.value = .fold
os_log("%{public}s[%{public}ld], %{public}s: expand", ((#file as NSString).lastPathComponent), #line, #function)
}
}
}
}
// MARK: - UITableViewDelegate
extension ComposeViewController: UITableViewDelegate { }
// MARK: - UICollectionViewDelegate
extension ComposeViewController: UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: select %s", ((#file as NSString).lastPathComponent), #line, #function, indexPath.debugDescription)
if collectionView === customEmojiPickerInputView.collectionView {
guard let diffableDataSource = viewModel.customEmojiPickerDiffableDataSource else { return }
let item = diffableDataSource.itemIdentifier(for: indexPath)
guard case let .emoji(attribute) = item else { return }
let emoji = attribute.emoji
// make click sound
UIDevice.current.playInputClick()
// retrieve active text input and insert emoji
// the trailing space is REQUIRED to make regex happy
_ = viewModel.customEmojiPickerInputViewModel.insertText(":\(emoji.shortcode): ")
} else {
// do nothing
}
}
}
// MARK: - UIAdaptivePresentationControllerDelegate
extension ComposeViewController: UIAdaptivePresentationControllerDelegate {
func adaptivePresentationStyle(for controller: UIPresentationController, traitCollection: UITraitCollection) -> UIModalPresentationStyle {
return .fullScreen
}
func presentationControllerShouldDismiss(_ presentationController: UIPresentationController) -> Bool {
return viewModel.shouldDismiss.value
}
func presentationControllerDidAttemptToDismiss(_ presentationController: UIPresentationController) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
showDismissConfirmAlertController()
}
func presentationControllerDidDismiss(_ presentationController: UIPresentationController) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
}
}
// MARK: - PHPickerViewControllerDelegate
extension ComposeViewController: PHPickerViewControllerDelegate {
func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
picker.dismiss(animated: true, completion: nil)
let attachmentServices: [MastodonAttachmentService] = results.map { result in
let service = MastodonAttachmentService(
context: context,
pickerResult: result,
initialAuthenticationBox: viewModel.activeAuthenticationBox.value
)
return service
}
viewModel.attachmentServices.value = viewModel.attachmentServices.value + attachmentServices
}
}
// MARK: - UIImagePickerControllerDelegate
extension ComposeViewController: UIImagePickerControllerDelegate & UINavigationControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
picker.dismiss(animated: true, completion: nil)
guard let image = info[.originalImage] as? UIImage else { return }
let attachmentService = MastodonAttachmentService(
context: context,
image: image,
initialAuthenticationBox: viewModel.activeAuthenticationBox.value
)
viewModel.attachmentServices.value = viewModel.attachmentServices.value + [attachmentService]
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
os_log("%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
picker.dismiss(animated: true, completion: nil)
}
}
// MARK: - UIDocumentPickerDelegate
extension ComposeViewController: UIDocumentPickerDelegate {
func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
guard let url = urls.first else { return }
let attachmentService = MastodonAttachmentService(
context: context,
documentURL: url,
initialAuthenticationBox: viewModel.activeAuthenticationBox.value
)
viewModel.attachmentServices.value = viewModel.attachmentServices.value + [attachmentService]
}
}
// MARK: - ComposeStatusAttachmentTableViewCellDelegate
extension ComposeViewController: ComposeStatusAttachmentCollectionViewCellDelegate {
func composeStatusAttachmentCollectionViewCell(_ cell: ComposeStatusAttachmentCollectionViewCell, removeButtonDidPressed button: UIButton) {
guard let diffableDataSource = viewModel.composeStatusAttachmentTableViewCell.dataSource else { return }
guard let indexPath = viewModel.composeStatusAttachmentTableViewCell.collectionView.indexPath(for: cell) else { return }
guard let item = diffableDataSource.itemIdentifier(for: indexPath) else { return }
guard case let .attachment(attachmentService) = item else { return }
var attachmentServices = viewModel.attachmentServices.value
guard let index = attachmentServices.firstIndex(of: attachmentService) else { return }
let removedItem = attachmentServices[index]
attachmentServices.remove(at: index)
viewModel.attachmentServices.value = attachmentServices
// cancel task
removedItem.disposeBag.removeAll()
}
}
// MARK: - ComposeStatusPollOptionCollectionViewCellDelegate
extension ComposeViewController: ComposeStatusPollOptionCollectionViewCellDelegate {
func composeStatusPollOptionCollectionViewCell(_ cell: ComposeStatusPollOptionCollectionViewCell, textFieldDidBeginEditing textField: UITextField) {
// FIXME: make poll section visible
// DispatchQueue.main.async {
// self.collectionView.scroll(to: .bottom, animated: true)
// }
}
// handle delete backward event for poll option input
func composeStatusPollOptionCollectionViewCell(_ cell: ComposeStatusPollOptionCollectionViewCell, textBeforeDeleteBackward text: String?) {
guard (text ?? "").isEmpty else { return }
guard let dataSource = viewModel.composeStatusPollTableViewCell.dataSource else { return }
guard let indexPath = viewModel.composeStatusPollTableViewCell.collectionView.indexPath(for: cell) else { return }
guard let item = dataSource.itemIdentifier(for: indexPath) else { return }
guard case let .pollOption(attribute) = item else { return }
var pollAttributes = viewModel.pollOptionAttributes.value
guard let index = pollAttributes.firstIndex(of: attribute) else { return }
// mark previous (fallback to next) item of removed middle poll option become first responder
let pollItems = dataSource.snapshot().itemIdentifiers(inSection: .main)
if let indexOfItem = pollItems.firstIndex(of: item), index > 0 {
func cellBeforeRemoved() -> ComposeStatusPollOptionCollectionViewCell? {
guard index > 0 else { return nil }
let indexBeforeRemoved = pollItems.index(before: indexOfItem)
let itemBeforeRemoved = pollItems[indexBeforeRemoved]
return pollOptionCollectionViewCell(of: itemBeforeRemoved)
}
func cellAfterRemoved() -> ComposeStatusPollOptionCollectionViewCell? {
guard index < pollItems.count - 1 else { return nil }
let indexAfterRemoved = pollItems.index(after: index)
let itemAfterRemoved = pollItems[indexAfterRemoved]
return pollOptionCollectionViewCell(of: itemAfterRemoved)
}
var cell: ComposeStatusPollOptionCollectionViewCell? = cellBeforeRemoved()
if cell == nil {
cell = cellAfterRemoved()
}
cell?.pollOptionView.optionTextField.becomeFirstResponder()
}
guard pollAttributes.count > 2 else {
return
}
pollAttributes.remove(at: index)
// update data source
viewModel.pollOptionAttributes.value = pollAttributes
}
// handle keyboard return event for poll option input
func composeStatusPollOptionCollectionViewCell(_ cell: ComposeStatusPollOptionCollectionViewCell, pollOptionTextFieldDidReturn: UITextField) {
guard let dataSource = viewModel.composeStatusPollTableViewCell.dataSource else { return }
guard let indexPath = viewModel.composeStatusPollTableViewCell.collectionView.indexPath(for: cell) else { return }
let pollItems = dataSource.snapshot().itemIdentifiers(inSection: .main).filter { item in
guard case .pollOption = item else { return false }
return true
}
guard let item = dataSource.itemIdentifier(for: indexPath) else { return }
guard let index = pollItems.firstIndex(of: item) else { return }
if index == pollItems.count - 1 {
// is the last
viewModel.createNewPollOptionIfPossible()
DispatchQueue.main.async {
self.markLastPollOptionCollectionViewCellBecomeFirstResponser()
}
} else {
// not the last
let indexAfter = pollItems.index(after: index)
let itemAfter = pollItems[indexAfter]
let cell = pollOptionCollectionViewCell(of: itemAfter)
cell?.pollOptionView.optionTextField.becomeFirstResponder()
}
}
}
// MARK: - ComposeStatusPollOptionAppendEntryCollectionViewCellDelegate
extension ComposeViewController: ComposeStatusPollOptionAppendEntryCollectionViewCellDelegate {
func composeStatusPollOptionAppendEntryCollectionViewCellDidPressed(_ cell: ComposeStatusPollOptionAppendEntryCollectionViewCell) {
viewModel.createNewPollOptionIfPossible()
DispatchQueue.main.async {
self.markLastPollOptionCollectionViewCellBecomeFirstResponser()
}
}
}
// MARK: - ComposeStatusPollExpiresOptionCollectionViewCellDelegate
extension ComposeViewController: ComposeStatusPollExpiresOptionCollectionViewCellDelegate {
func composeStatusPollExpiresOptionCollectionViewCell(_ cell: ComposeStatusPollExpiresOptionCollectionViewCell, didSelectExpiresOption expiresOption: ComposeStatusPollItem.PollExpiresOptionAttribute.ExpiresOption) {
viewModel.pollExpiresOptionAttribute.expiresOption.value = expiresOption
}
}
// MARK: - AutoCompleteViewControllerDelegate
extension ComposeViewController: AutoCompleteViewControllerDelegate {
func autoCompleteViewController(_ viewController: AutoCompleteViewController, didSelectItem item: AutoCompleteItem) {
guard let info = viewModel.autoCompleteInfo.value else { return }
let _replacedText: String? = {
var text: String
switch item {
case .hashtag(let hashtag):
text = "#" + hashtag.name
case .hashtagV1(let hashtagName):
text = "#" + hashtagName
case .account(let account):
text = "@" + account.acct
case .emoji(let emoji):
text = ":" + emoji.shortcode + ":"
case .bottomLoader:
return nil
}
text.append(" ")
return text
}()
guard let replacedText = _replacedText else { return }
guard let textEditorView = textEditorView(),
let text = textEditorView.textView.text else { return }
let range = NSRange(info.toHighlightEndRange, in: text)
textEditorView.textStorage.replaceCharacters(in: range, with: replacedText)
viewModel.autoCompleteInfo.value = nil
switch item {
case .emoji, .bottomLoader:
break
default:
// set selected range except emoji
let newRange = NSRange(location: range.location + (replacedText as NSString).length, length: 0)
guard textEditorView.textStorage.length <= newRange.location else { return }
textEditorView.textView.selectedRange = newRange
}
}
}
extension ComposeViewController {
override var keyCommands: [UIKeyCommand]? {
composeKeyCommands
}
}
extension ComposeViewController {
enum ComposeKeyCommand: String, CaseIterable {
case discardPost
case publishPost
case mediaBrowse
case mediaPhotoLibrary
case mediaCamera
case togglePoll
case toggleContentWarning
case selectVisibilityPublic
// TODO: remove selectVisibilityUnlisted from codebase
// case selectVisibilityUnlisted
case selectVisibilityPrivate
case selectVisibilityDirect
var title: String {
switch self {
case .discardPost: return L10n.Scene.Compose.Keyboard.discardPost
case .publishPost: return L10n.Scene.Compose.Keyboard.publishPost
case .mediaBrowse: return L10n.Scene.Compose.Keyboard.appendAttachmentEntry(L10n.Scene.Compose.MediaSelection.browse)
case .mediaPhotoLibrary: return L10n.Scene.Compose.Keyboard.appendAttachmentEntry(L10n.Scene.Compose.MediaSelection.photoLibrary)
case .mediaCamera: return L10n.Scene.Compose.Keyboard.appendAttachmentEntry(L10n.Scene.Compose.MediaSelection.camera)
case .togglePoll: return L10n.Scene.Compose.Keyboard.togglePoll
case .toggleContentWarning: return L10n.Scene.Compose.Keyboard.toggleContentWarning
case .selectVisibilityPublic: return L10n.Scene.Compose.Keyboard.selectVisibilityEntry(L10n.Scene.Compose.Visibility.public)
// case .selectVisibilityUnlisted: return L10n.Scene.Compose.Keyboard.selectVisibilityEntry(L10n.Scene.Compose.Visibility.unlisted)
case .selectVisibilityPrivate: return L10n.Scene.Compose.Keyboard.selectVisibilityEntry(L10n.Scene.Compose.Visibility.private)
case .selectVisibilityDirect: return L10n.Scene.Compose.Keyboard.selectVisibilityEntry(L10n.Scene.Compose.Visibility.direct)
}
}
// UIKeyCommand input
var input: String {
switch self {
case .discardPost: return "w" // + command
case .publishPost: return "\r" // (enter) + command
case .mediaBrowse: return "b" // + option + command
case .mediaPhotoLibrary: return "p" // + option + command
case .mediaCamera: return "c" // + option + command
case .togglePoll: return "p" // + shift + command
case .toggleContentWarning: return "c" // + shift + command
case .selectVisibilityPublic: return "1" // + command
// case .selectVisibilityUnlisted: return "2" // + command
case .selectVisibilityPrivate: return "2" // + command
case .selectVisibilityDirect: return "3" // + command
}
}
var modifierFlags: UIKeyModifierFlags {
switch self {
case .discardPost: return [.command]
case .publishPost: return [.command]
case .mediaBrowse: return [.alternate, .command]
case .mediaPhotoLibrary: return [.alternate, .command]
case .mediaCamera: return [.alternate, .command]
case .togglePoll: return [.shift, .command]
case .toggleContentWarning: return [.shift, .command]
case .selectVisibilityPublic: return [.command]
// case .selectVisibilityUnlisted: return [.command]
case .selectVisibilityPrivate: return [.command]
case .selectVisibilityDirect: return [.command]
}
}
var propertyList: Any {
return rawValue
}
}
var composeKeyCommands: [UIKeyCommand]? {
ComposeKeyCommand.allCases.map { command in
UIKeyCommand(
title: command.title,
image: nil,
action: #selector(Self.composeKeyCommandHandler(_:)),
input: command.input,
modifierFlags: command.modifierFlags,
propertyList: command.propertyList,
alternates: [],
discoverabilityTitle: nil,
attributes: [],
state: .off
)
}
}
@objc private func composeKeyCommandHandler(_ sender: UIKeyCommand) {
guard let rawValue = sender.propertyList as? String,
let command = ComposeKeyCommand(rawValue: rawValue) else { return }
switch command {
case .discardPost:
cancelBarButtonItemPressed(cancelBarButtonItem)
case .publishPost:
publishBarButtonItemPressed(publishBarButtonItem)
case .mediaBrowse:
present(documentPickerController, animated: true, completion: nil)
case .mediaPhotoLibrary:
present(photoLibraryPicker, animated: true, completion: nil)
case .mediaCamera:
guard UIImagePickerController.isSourceTypeAvailable(.camera) else {
return
}
present(imagePickerController, animated: true, completion: nil)
case .togglePoll:
composeToolbarView.pollButton.sendActions(for: .touchUpInside)
case .toggleContentWarning:
composeToolbarView.contentWarningButton.sendActions(for: .touchUpInside)
case .selectVisibilityPublic:
viewModel.selectedStatusVisibility.value = .public
// case .selectVisibilityUnlisted:
// viewModel.selectedStatusVisibility.value = .unlisted
case .selectVisibilityPrivate:
viewModel.selectedStatusVisibility.value = .private
case .selectVisibilityDirect:
viewModel.selectedStatusVisibility.value = .direct
}
}
}