289 lines
14 KiB
Swift
289 lines
14 KiB
Swift
//
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// ActionViewController.swift
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// highlighter action extension
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//
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// Created by Daniel D’Aquino on 2024-08-09.
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//
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import UIKit
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import MobileCoreServices
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import UniformTypeIdentifiers
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import SwiftUI
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struct ShareExtensionView: View {
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@State var highlighter_state: HighlighterState = .loading
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let extensionContext: NSExtensionContext
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@State var state: DamusState? = nil
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@State var signedEvent: String? = nil
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@State private var selectedText = ""
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@State private var selectedTextHeight: CGFloat = .zero
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@State private var selectedTextWidth: CGFloat = .zero
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@Environment(\.scenePhase) var scenePhase
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var body: some View {
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VStack(spacing: 15) {
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if let state {
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switch self.highlighter_state {
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case .loading:
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ProgressView()
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case .no_highlight_text:
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Group {
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Text("No text selected", comment: "Title indicating that a highlight cannot be posted because no text was selected.")
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.font(.largeTitle)
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.multilineTextAlignment(.center)
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.padding()
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Text("You cannot post a highlight because you have selected no text on the page! Please close this, select some text, and try again.", comment: "Label explaining a highlight cannot be made because there was no selected text, and some instructions on how to resolve the issue")
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.multilineTextAlignment(.center)
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Button(action: {
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self.done()
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}, label: {
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Text("Close", comment: "Button label giving the user the option to close the sheet from which they were trying to post a highlight")
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})
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.foregroundStyle(.secondary)
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}
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case .not_logged_in:
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Group {
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Text("Not logged in", comment: "Title indicating that a highlight cannot be posted because the user is not logged in.")
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.font(.largeTitle)
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.multilineTextAlignment(.center)
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.padding()
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Text("You cannot post a highlight because you are not logged in with a private key! Please close this, login with a private key (or nsec), and try again.", comment: "Label explaining a highlight cannot be made because the user is not logged in")
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.multilineTextAlignment(.center)
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Button(action: {
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self.done()
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}, label: {
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Text("Close", comment: "Button label giving the user the option to close the sheet from which they were trying to post a highlight")
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})
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.foregroundStyle(.secondary)
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}
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case .loaded(let highlighted_text, let source_url):
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PostView(
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action: .highlighting(HighlightContentDraft(selected_text: highlighted_text, source: .external_url(source_url))),
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damus_state: state
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)
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case .failed(let error):
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Group {
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Text("Error", comment: "Title indicating that an error has occurred.")
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.font(.largeTitle)
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.multilineTextAlignment(.center)
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.padding()
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Text("An unexpected error occurred. Please contact Damus support via [Nostr](damus:npub18m76awca3y37hkvuneavuw6pjj4525fw90necxmadrvjg0sdy6qsngq955) or [email](support@damus.io) with the error message below.", comment: "Label explaining there was an error, and suggesting next steps")
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.multilineTextAlignment(.center)
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Text("Error: \(error)")
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Button(action: {
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self.done()
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}, label: {
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Text("Close", comment: "Button label giving the user the option to close the sheet from which they were trying to post a highlight")
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})
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.foregroundStyle(.secondary)
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}
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case .posted(event: let event):
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Group {
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Image(systemName: "checkmark.circle.fill")
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.resizable()
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.frame(width: 60, height: 60)
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Text("Posted", comment: "Title indicating that the user has posted a highlight successfully")
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.font(.largeTitle)
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.multilineTextAlignment(.center)
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.padding(.bottom)
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Link(destination: URL(string: "damus:\(event.id.bech32)")!, label: {
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Text("Go to the app", comment: "Button label giving the user the option to go to the app after posting a highlight")
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})
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.buttonStyle(GradientButtonStyle())
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Button(action: {
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self.done()
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}, label: {
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Text("Close", comment: "Button label giving the user the option to close the sheet from which they posted a highlight")
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})
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.foregroundStyle(.secondary)
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}
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case .cancelled:
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Group {
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Text("Cancelled", comment: "Title indicating that the user has cancelled.")
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.font(.largeTitle)
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.padding()
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Button(action: {
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self.done()
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}, label: {
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Text("Close", comment: "Button label giving the user the option to close the sheet from which they were trying to post a highlight")
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})
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.foregroundStyle(.secondary)
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}
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case .posting:
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Group {
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ProgressView()
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.frame(width: 20, height: 20)
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Text("Posting", comment: "Title indicating that the highlight post is being published to the network")
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.font(.largeTitle)
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.multilineTextAlignment(.center)
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.padding(.bottom)
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Text("Your highlight is being broadcasted to the network. Please wait.", comment: "Label explaining there their highlight publishing action is in progress")
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.multilineTextAlignment(.center)
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.padding()
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}
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}
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}
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}
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.onAppear(perform: {
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self.loadSharedUrl()
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guard let keypair = get_saved_keypair() else { return }
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guard keypair.privkey != nil else {
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self.highlighter_state = .not_logged_in
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return
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}
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self.state = DamusState(keypair: keypair)
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self.state?.nostrNetwork.connect()
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})
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.onChange(of: self.highlighter_state) {
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if case .cancelled = highlighter_state {
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self.done()
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}
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}
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.onReceive(handle_notify(.post)) { post_notification in
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switch post_notification {
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case .post(let post):
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self.post(post)
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case .cancel:
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self.highlighter_state = .cancelled
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}
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}
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.onChange(of: scenePhase) { (phase: ScenePhase) in
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guard let state else { return }
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switch phase {
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case .background:
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print("txn: 📙 HIGHLIGHTER BACKGROUNDED")
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Task { @MainActor in
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state.ndb.close()
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}
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break
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case .inactive:
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print("txn: 📙 HIGHLIGHTER INACTIVE")
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break
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case .active:
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print("txn: 📙 HIGHLIGHTER ACTIVE")
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state.nostrNetwork.ping()
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@unknown default:
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break
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}
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}
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.onReceive(NotificationCenter.default.publisher(for: UIApplication.willEnterForegroundNotification)) { obj in
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guard let state else { return }
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print("txn: 📙 HIGHLIGHTER ACTIVE NOTIFY")
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if state.ndb.reopen() {
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print("txn: HIGHLIGHTER NOSTRDB REOPENED")
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} else {
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print("txn: HIGHLIGHTER NOSTRDB FAILED TO REOPEN closed: \(state.ndb.is_closed)")
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}
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}
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.onReceive(NotificationCenter.default.publisher(for: UIApplication.willResignActiveNotification)) { obj in
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guard let state else { return }
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print("txn: 📙 HIGHLIGHTER BACKGROUNDED")
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Task { @MainActor in
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state.ndb.close()
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}
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}
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}
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func loadSharedUrl() {
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guard
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let extensionItem = extensionContext.inputItems.first as? NSExtensionItem,
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let itemProvider = extensionItem.attachments?.first else {
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self.highlighter_state = .failed(error: "Can't get itemProvider")
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return
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}
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let propertyList = UTType.propertyList.identifier
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if itemProvider.hasItemConformingToTypeIdentifier(propertyList) {
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itemProvider.loadItem(forTypeIdentifier: propertyList, options: nil, completionHandler: { (item, error) -> Void in
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guard let dictionary = item as? NSDictionary else { return }
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if error != nil {
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self.highlighter_state = .failed(error: "Error loading plist item: \(error?.localizedDescription ?? "Unknown")")
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return
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}
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OperationQueue.main.addOperation {
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if let results = dictionary[NSExtensionJavaScriptPreprocessingResultsKey] as? NSDictionary,
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let urlString = results["URL"] as? String,
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let selection = results["selectedText"] as? String,
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let url = URL(string: urlString) {
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guard selection != "" else {
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self.highlighter_state = .no_highlight_text
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return
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}
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self.highlighter_state = .loaded(highlighted_text: selection, source_url: url)
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}
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else {
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self.highlighter_state = .failed(error: "Cannot load results")
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}
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}
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})
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}
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else {
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self.highlighter_state = .failed(error: "No plist detected")
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}
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}
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func post(_ post: NostrPost) {
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self.highlighter_state = .posting
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guard let state else {
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self.highlighter_state = .failed(error: "Damus state not initialized")
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return
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}
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guard let full_keypair = state.keypair.to_full() else {
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self.highlighter_state = .not_logged_in
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return
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}
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guard let posted_event = post.to_event(keypair: full_keypair) else {
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self.highlighter_state = .failed(error: "Cannot convert post data into a nostr event")
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return
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}
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state.nostrNetwork.postbox.send(posted_event, on_flush: .once({ flushed_event in
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if flushed_event.event.id == posted_event.id {
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DispatchQueue.main.asyncAfter(deadline: .now() + 1, execute: { // Offset labor perception bias
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self.highlighter_state = .posted(event: flushed_event.event)
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})
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}
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else {
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self.highlighter_state = .failed(error: "Flushed event is not the event we just tried to post.")
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}
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}))
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}
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func done() {
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self.extensionContext.completeRequest(returningItems: [], completionHandler: nil)
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}
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enum HighlighterState: Equatable {
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case loading
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case no_highlight_text
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case not_logged_in
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case loaded(highlighted_text: String, source_url: URL)
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case posting
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case posted(event: NostrEvent)
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case cancelled
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case failed(error: String)
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}
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}
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class ActionViewController: UIViewController {
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override func viewDidLoad() {
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super.viewDidLoad()
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self.view.tintColor = UIColor(DamusColors.purple)
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DispatchQueue.main.async {
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let contentView = UIHostingController(rootView: ShareExtensionView(extensionContext: self.extensionContext!))
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self.addChild(contentView)
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self.view.addSubview(contentView.view)
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// set up constraints
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contentView.view.translatesAutoresizingMaskIntoConstraints = false
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contentView.view.topAnchor.constraint(equalTo: self.view.topAnchor).isActive = true
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contentView.view.bottomAnchor.constraint (equalTo: self.view.bottomAnchor).isActive = true
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contentView.view.leftAnchor.constraint(equalTo: self.view.leftAnchor).isActive = true
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contentView.view.rightAnchor.constraint (equalTo: self.view.rightAnchor).isActive = true
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}
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}
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}
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