137 lines
4.9 KiB
Swift
137 lines
4.9 KiB
Swift
//
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// ShareViewController.swift
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// ShareExtension
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//
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// Created by Shadowfacts on 4/17/23.
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// Copyright © 2023 Shadowfacts. All rights reserved.
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//
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import SwiftUI
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import UserAccounts
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import ComposeUI
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import UniformTypeIdentifiers
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import TuskerPreferences
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import Combine
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class ShareViewController: UIViewController {
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private var state: State = .loading
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private var draftsPresenterCancellable: AnyCancellable?
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required init?(coder: NSCoder) {
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super.init(coder: coder)
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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view.tintColor = Preferences.shared.accentColor.color
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if let account = UserAccountsManager.shared.getMostRecentAccount() {
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NSFileCoordinator.addFilePresenter(DraftsManager.shared)
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draftsPresenterCancellable = AnyCancellable({
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NSFileCoordinator.removeFilePresenter(DraftsManager.shared)
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})
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Task { @MainActor in
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let draft = await createDraft(account: account)
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state = .ok
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let context = ShareMastodonContext(accountInfo: account)
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let host = ShareHostingController(draft: draft, mastodonContext: context)
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let nav = UINavigationController(rootViewController: host)
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self.addChild(nav)
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nav.view.translatesAutoresizingMaskIntoConstraints = false
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self.view.addSubview(nav.view)
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NSLayoutConstraint.activate([
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nav.view.leadingAnchor.constraint(equalTo: self.view.leadingAnchor),
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nav.view.trailingAnchor.constraint(equalTo: self.view.trailingAnchor),
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nav.view.topAnchor.constraint(equalTo: self.view.topAnchor),
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nav.view.bottomAnchor.constraint(equalTo: self.view.bottomAnchor),
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])
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nav.didMove(toParent: self)
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}
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} else {
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state = .notLoggedIn
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}
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}
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private func createDraft(account: UserAccountInfo) async -> Draft {
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await withCheckedContinuation({ continuation in
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DraftsManager.shared.load { _ in
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continuation.resume()
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}
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})
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let (text, attachments) = await getDraftConfigurationFromExtensionContext()
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let draft = Draft(
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accountID: account.id,
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text: text,
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contentWarning: "",
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inReplyToID: nil,
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visibility: Preferences.shared.defaultPostVisibility,
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localOnly: false
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)
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draft.attachments = attachments
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DraftsManager.shared.add(draft)
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return draft
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}
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private func getDraftConfigurationFromExtensionContext() async -> (String, [DraftAttachment]) {
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guard let extensionContext,
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let inputItem = (extensionContext.inputItems as? [NSExtensionItem])?.first,
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let itemProvider = inputItem.attachments?.first else {
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return ("", [])
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}
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if let url: NSURL = await getObject(from: itemProvider) {
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if let title = inputItem.attributedTitle ?? inputItem.attributedContentText {
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return ("\n\n\(title.string)\n\(url.absoluteString ?? "")", [])
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} else {
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return ("\n\n\(url.absoluteString ?? "")", [])
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}
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} else if let text: NSString = await getObject(from: itemProvider) {
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return ("\n\n\(text)", [])
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} else if let attachment: DraftAttachment = await getObject(from: itemProvider) {
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return ("", [attachment])
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} else if let attributedContent = inputItem.attributedContentText {
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return ("\n\n\(attributedContent.string)", [])
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} else {
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return ("", [])
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}
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}
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private func getObject<T: NSItemProviderReading>(from itemProvider: NSItemProvider) async -> T? {
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guard itemProvider.canLoadObject(ofClass: T.self) else {
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return nil
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}
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return await withCheckedContinuation({ continuation in
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itemProvider.loadObject(ofClass: T.self) { object, error in
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continuation.resume(returning: object as? T)
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}
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})
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}
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override func viewDidAppear(_ animated: Bool) {
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super.viewDidAppear(animated)
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if case .notLoggedIn = state {
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let alert = UIAlertController(title: "Not Logged In", message: "You need to log in to an account through the app before you can post.", preferredStyle: .alert)
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alert.addAction(UIAlertAction(title: "OK", style: .default, handler: { [unowned self] _ in
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self.extensionContext!.cancelRequest(withError: Error.notLoggedIn)
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}))
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present(alert, animated: true)
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}
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}
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enum State {
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case loading
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case notLoggedIn
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case ok
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}
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enum Error: Swift.Error {
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case notLoggedIn
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}
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}
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