198 lines
7.6 KiB
Swift
198 lines
7.6 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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import AVFoundation
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import Combine
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import Mastodon
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import UIKit
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import ViewModels
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final class CompositionInputAccessoryView: UIToolbar {
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let tagForInputView = UUID().hashValue
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private let viewModel: CompositionViewModel
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private let parentViewModel: NewStatusViewModel
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private var cancellables = Set<AnyCancellable>()
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init(viewModel: CompositionViewModel, parentViewModel: NewStatusViewModel) {
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self.viewModel = viewModel
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self.parentViewModel = parentViewModel
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super.init(
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frame: .init(
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origin: .zero,
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size: .init(width: UIScreen.main.bounds.width, height: .minimumButtonDimension)))
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initialSetup()
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}
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@available(*, unavailable)
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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}
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private extension CompositionInputAccessoryView {
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// swiftlint:disable:next function_body_length
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func initialSetup() {
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autoresizingMask = .flexibleHeight
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heightAnchor.constraint(equalToConstant: .minimumButtonDimension).isActive = true
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var attachmentActions = [
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UIAction(
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title: NSLocalizedString("compose.browse", comment: ""),
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image: UIImage(systemName: "ellipsis")) { [weak self] _ in
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guard let self = self else { return }
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self.parentViewModel.presentDocumentPicker(viewModel: self.viewModel)
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},
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UIAction(
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title: NSLocalizedString("compose.photo-library", comment: ""),
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image: UIImage(systemName: "rectangle.on.rectangle")) { [weak self] _ in
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guard let self = self else { return }
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self.parentViewModel.presentMediaPicker(viewModel: self.viewModel)
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}
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]
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#if !IS_SHARE_EXTENSION
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attachmentActions.insert(UIAction(
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title: NSLocalizedString("compose.take-photo-or-video", comment: ""),
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image: UIImage(systemName: "camera.fill")) { [weak self] _ in
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guard let self = self else { return }
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self.parentViewModel.presentCamera(viewModel: self.viewModel)
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},
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at: 1)
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#endif
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let attachmentButton = UIBarButtonItem(
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image: UIImage(systemName: "paperclip"),
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menu: UIMenu(children: attachmentActions))
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attachmentButton.accessibilityLabel =
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NSLocalizedString("compose.attachments-button.accessibility-label", comment: "")
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let pollButton = UIBarButtonItem(
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image: UIImage(systemName: "chart.bar.xaxis"),
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primaryAction: UIAction { [weak self] _ in self?.viewModel.displayPoll.toggle() })
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pollButton.accessibilityLabel = NSLocalizedString("compose.poll-button.accessibility-label", comment: "")
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let visibilityButton = UIBarButtonItem(
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image: UIImage(systemName: parentViewModel.visibility.systemImageName),
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menu: visibilityMenu(selectedVisibility: parentViewModel.visibility))
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let contentWarningButton = UIBarButtonItem(
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title: NSLocalizedString("status.content-warning-abbreviation", comment: ""),
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primaryAction: UIAction { [weak self] _ in self?.viewModel.displayContentWarning.toggle() })
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viewModel.$displayContentWarning.sink {
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if $0 {
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contentWarningButton.accessibilityHint =
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NSLocalizedString("compose.content-warning-button.remove", comment: "")
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} else {
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contentWarningButton.accessibilityHint =
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NSLocalizedString("compose.content-warning-button.add", comment: "")
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}
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}
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.store(in: &cancellables)
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let emojiButton = UIBarButtonItem(
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image: UIImage(systemName: "face.smiling"),
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primaryAction: UIAction { [weak self] _ in
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guard let self = self else { return }
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self.parentViewModel.presentEmojiPicker(tag: self.tagForInputView)
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})
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emojiButton.accessibilityLabel = NSLocalizedString("compose.emoji-button", comment: "")
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let addButton = UIBarButtonItem(
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image: UIImage(systemName: "plus.circle.fill"),
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primaryAction: UIAction { [weak self] _ in
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guard let self = self else { return }
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self.parentViewModel.insert(after: self.viewModel)
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})
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switch parentViewModel.identityContext.appPreferences.statusWord {
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case .toot:
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addButton.accessibilityLabel =
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NSLocalizedString("compose.add-button-accessibility-label.toot", comment: "")
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case .post:
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addButton.accessibilityLabel =
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NSLocalizedString("compose.add-button-accessibility-label.post", comment: "")
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}
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let charactersLabel = UILabel()
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charactersLabel.font = .preferredFont(forTextStyle: .callout)
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charactersLabel.adjustsFontForContentSizeCategory = true
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charactersLabel.adjustsFontSizeToFitWidth = true
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let charactersBarItem = UIBarButtonItem(customView: charactersLabel)
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items = [
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attachmentButton,
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UIBarButtonItem.fixedSpace(.defaultSpacing),
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pollButton,
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UIBarButtonItem.fixedSpace(.defaultSpacing),
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visibilityButton,
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UIBarButtonItem.fixedSpace(.defaultSpacing),
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contentWarningButton,
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UIBarButtonItem.fixedSpace(.defaultSpacing),
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emojiButton,
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UIBarButtonItem.flexibleSpace(),
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charactersBarItem,
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UIBarButtonItem.fixedSpace(.defaultSpacing),
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addButton]
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viewModel.$canAddAttachment
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.sink { attachmentButton.isEnabled = $0 }
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.store(in: &cancellables)
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viewModel.$attachmentViewModels
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.combineLatest(viewModel.$attachmentUpload)
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.sink { pollButton.isEnabled = $0.isEmpty && $1 == nil }
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.store(in: &cancellables)
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viewModel.$remainingCharacters.sink {
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charactersLabel.text = String($0)
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charactersLabel.textColor = $0 < 0 ? .systemRed : .label
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charactersLabel.accessibilityLabel = String.localizedStringWithFormat(
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NSLocalizedString("compose.characters-remaining-accessibility-label-%ld", comment: ""),
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$0)
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}
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.store(in: &cancellables)
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viewModel.$isPostable
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.sink { addButton.isEnabled = $0 }
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.store(in: &cancellables)
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parentViewModel.$visibility
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.sink { [weak self] in
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visibilityButton.image = UIImage(systemName: $0.systemImageName)
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visibilityButton.menu = self?.visibilityMenu(selectedVisibility: $0)
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visibilityButton.accessibilityLabel = String.localizedStringWithFormat(
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NSLocalizedString("compose.visibility-button.accessibility-label-%@", comment: ""),
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$0.title ?? "")
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}
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.store(in: &cancellables)
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}
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}
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private extension CompositionInputAccessoryView {
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func visibilityMenu(selectedVisibility: Status.Visibility) -> UIMenu {
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UIMenu(children: Status.Visibility.allCasesExceptUnknown.reversed().map { visibility in
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UIAction(
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title: visibility.title ?? "",
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image: UIImage(systemName: visibility.systemImageName),
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discoverabilityTitle: visibility.description,
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state: visibility == selectedVisibility ? .on : .off) { [weak self] _ in
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self?.parentViewModel.visibility = visibility
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}
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})
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}
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}
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