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https://github.com/permissionlesstech/bitchat.git
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Share Extension: migrate to UIKit + UTTypes; drop Social/SLComposeServiceViewController
This commit is contained in:
jack
@@ -7,160 +7,160 @@
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//
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import UIKit
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import Social
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import UniformTypeIdentifiers
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class ShareViewController: SLComposeServiceViewController {
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/// Modern share extension using UIKit + UTTypes.
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/// Avoids deprecated Social framework and SLComposeServiceViewController.
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final class ShareViewController: UIViewController {
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private let statusLabel: UILabel = {
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let l = UILabel()
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l.translatesAutoresizingMaskIntoConstraints = false
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l.font = .systemFont(ofSize: 15, weight: .semibold)
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l.textAlignment = .center
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l.numberOfLines = 0
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l.textColor = .label
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return l
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}()
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override func viewDidLoad() {
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super.viewDidLoad()
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// Set placeholder text
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placeholder = "Share to bitchat..."
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// Set character limit (optional)
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charactersRemaining = 500
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view.backgroundColor = .systemBackground
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view.addSubview(statusLabel)
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NSLayoutConstraint.activate([
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statusLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor),
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statusLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor),
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statusLabel.leadingAnchor.constraint(greaterThanOrEqualTo: view.layoutMarginsGuide.leadingAnchor),
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statusLabel.trailingAnchor.constraint(lessThanOrEqualTo: view.layoutMarginsGuide.trailingAnchor)
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])
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processShare()
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}
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override func isContentValid() -> Bool {
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// Validate that we have text content or attachments
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if let text = contentText, !text.isEmpty {
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return true
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}
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// Check if we have attachments
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if let item = extensionContext?.inputItems.first as? NSExtensionItem,
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let attachments = item.attachments,
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!attachments.isEmpty {
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return true
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}
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return false
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}
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override func didSelectPost() {
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guard let extensionItem = extensionContext?.inputItems.first as? NSExtensionItem else {
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self.extensionContext?.completeRequest(returningItems: nil, completionHandler: nil)
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// MARK: - Processing
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private func processShare() {
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guard let ctx = self.extensionContext,
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let item = ctx.inputItems.first as? NSExtensionItem else {
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finishWithMessage("Nothing to share")
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return
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}
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// Get the page title from the compose view or extension item
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let pageTitle = self.contentText ?? extensionItem.attributedContentText?.string ?? extensionItem.attributedTitle?.string
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var foundURL: URL? = nil
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let group = DispatchGroup()
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// IMPORTANT: Check if the NSExtensionItem itself has a URL
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// Safari often provides the URL as an attributedString with a link
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if let attributedText = extensionItem.attributedContentText {
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let text = attributedText.string
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let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
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let matches = detector?.matches(in: text, options: [], range: NSRange(location: 0, length: text.utf16.count))
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if let firstMatch = matches?.first, let url = firstMatch.url {
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foundURL = url
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}
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// Try content from attributed text first (Safari often passes URL here)
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if let url = detectURL(in: item.attributedContentText?.string ?? "") {
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saveAndFinish(url: url, title: item.attributedTitle?.string)
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return
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}
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// Only check attachments if we haven't found a URL yet
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if foundURL == nil {
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for (_, itemProvider) in (extensionItem.attachments ?? []).enumerated() {
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// Try multiple URL type identifiers that Safari might use
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let urlTypes = [
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UTType.url.identifier,
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"public.url",
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"public.file-url"
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]
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for urlType in urlTypes {
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if itemProvider.hasItemConformingToTypeIdentifier(urlType) {
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group.enter()
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itemProvider.loadItem(forTypeIdentifier: urlType, options: nil) { (item, error) in
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defer { group.leave() }
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if let url = item as? URL {
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foundURL = url
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} else if let data = item as? Data,
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let urlString = String(data: data, encoding: .utf8),
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let url = URL(string: urlString) {
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foundURL = url
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} else if let string = item as? String,
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let url = URL(string: string) {
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foundURL = url
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}
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}
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break // Found a URL type, no need to check other types
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}
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// Scan attachments for URL/text
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let providers = item.attachments ?? []
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if providers.isEmpty {
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// Fallback: use attributed title as plain text
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if let title = item.attributedTitle?.string, !title.isEmpty {
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saveAndFinish(text: title)
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} else {
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finishWithMessage("No shareable content")
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}
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// Also check for plain text that might be a URL
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if foundURL == nil && itemProvider.hasItemConformingToTypeIdentifier(UTType.plainText.identifier) {
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group.enter()
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itemProvider.loadItem(forTypeIdentifier: UTType.plainText.identifier, options: nil) { (item, error) in
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defer { group.leave() }
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if let text = item as? String {
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// Check if the text is actually a URL
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if let url = URL(string: text),
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(url.scheme == "http" || url.scheme == "https") {
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foundURL = url
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return
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}
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// Load URL or text asynchronously
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loadFirstURL(from: providers) { [weak self] url in
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guard let self = self else { return }
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if let url = url {
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self.saveAndFinish(url: url, title: item.attributedTitle?.string)
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} else {
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self.loadFirstPlainText(from: providers) { text in
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if let t = text, !t.isEmpty {
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// Treat as URL if parseable http(s), else plain text
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if let u = URL(string: t), ["http","https"].contains(u.scheme?.lowercased() ?? "") {
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self.saveAndFinish(url: u, title: item.attributedTitle?.string)
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} else {
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self.saveAndFinish(text: t)
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}
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} else {
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self.finishWithMessage("No shareable content")
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}
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}
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}
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}
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} // End of if foundURL == nil
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// Process after all checks complete
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group.notify(queue: .main) { [weak self] in
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if let url = foundURL {
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// We have a URL! Create the JSON data
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let urlData: [String: String] = [
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"url": url.absoluteString,
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"title": pageTitle ?? url.host ?? "Shared Link"
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]
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if let jsonData = try? JSONSerialization.data(withJSONObject: urlData),
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let jsonString = String(data: jsonData, encoding: .utf8) {
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self?.saveToSharedDefaults(content: jsonString, type: "url")
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}
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private func detectURL(in text: String) -> URL? {
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guard !text.isEmpty else { return nil }
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let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
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let range = NSRange(location: 0, length: (text as NSString).length)
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let match = detector?.matches(in: text, options: [], range: range).first
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return match?.url
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}
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private func loadFirstURL(from providers: [NSItemProvider], completion: @escaping (URL?) -> Void) {
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let identifiers = [UTType.url.identifier, "public.url", "public.file-url"]
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let grp = DispatchGroup()
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var found: URL?
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for p in providers where found == nil {
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for id in identifiers where p.hasItemConformingToTypeIdentifier(id) {
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grp.enter()
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p.loadItem(forTypeIdentifier: id, options: nil) { item, _ in
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defer { grp.leave() }
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if let u = item as? URL { found = u; return }
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if let s = item as? String, let u = URL(string: s) { found = u; return }
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if let d = item as? Data, let s = String(data: d, encoding: .utf8), let u = URL(string: s) { found = u; return }
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}
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} else if let title = pageTitle, !title.isEmpty {
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// No URL found, just share the text
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self?.saveToSharedDefaults(content: title, type: "text")
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break
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}
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self?.extensionContext?.completeRequest(returningItems: nil, completionHandler: nil)
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}
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grp.notify(queue: .main) { completion(found) }
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}
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private func loadFirstPlainText(from providers: [NSItemProvider], completion: @escaping (String?) -> Void) {
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let id = UTType.plainText.identifier
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let grp = DispatchGroup()
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var text: String?
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for p in providers where p.hasItemConformingToTypeIdentifier(id) {
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grp.enter()
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p.loadItem(forTypeIdentifier: id, options: nil) { item, _ in
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defer { grp.leave() }
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if let s = item as? String { text = s }
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else if let d = item as? Data, let s = String(data: d, encoding: .utf8) { text = s }
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}
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break
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}
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grp.notify(queue: .main) { completion(text) }
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}
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// MARK: - Save + Finish
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private func saveAndFinish(url: URL, title: String?) {
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let payload: [String: String] = [
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"url": url.absoluteString,
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"title": title ?? url.host ?? "Shared Link"
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]
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if let json = try? JSONSerialization.data(withJSONObject: payload),
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let s = String(data: json, encoding: .utf8) {
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saveToSharedDefaults(content: s, type: "url")
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finishWithMessage("✓ Shared link to bitchat")
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} else {
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finishWithMessage("Failed to encode link")
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}
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}
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override func configurationItems() -> [Any]! {
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// No configuration items needed
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return []
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private func saveAndFinish(text: String) {
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saveToSharedDefaults(content: text, type: "text")
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finishWithMessage("✓ Shared text to bitchat")
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}
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// MARK: - Helper Methods
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private func saveToSharedDefaults(content: String, type: String) {
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// Use app groups to share data between extension and main app
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guard let userDefaults = UserDefaults(suiteName: "group.chat.bitchat") else {
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return
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}
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guard let userDefaults = UserDefaults(suiteName: "group.chat.bitchat") else { return }
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userDefaults.set(content, forKey: "sharedContent")
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userDefaults.set(type, forKey: "sharedContentType")
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userDefaults.set(Date(), forKey: "sharedContentDate")
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userDefaults.synchronize()
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// Force open the main app
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self.openMainApp()
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}
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private func openMainApp() {
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// Share extensions cannot directly open the containing app
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// The app will check for shared content when it becomes active
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// Show success feedback to user
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DispatchQueue.main.async {
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self.textView.text = "✓ Shared to bitchat"
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self.textView.isEditable = false
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private func finishWithMessage(_ msg: String) {
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statusLabel.text = msg
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// Complete shortly after showing status
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
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self.extensionContext?.completeRequest(returningItems: nil, completionHandler: nil)
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}
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}
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}
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}
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