mirror of
https://github.com/ecency/ecency-mobile.git
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226 lines
9.2 KiB
Swift
226 lines
9.2 KiB
Swift
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//
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// ShareViewController.swift
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// eshare
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//
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// Created by Feruz Muradov on 2020-07-30.
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// Copyright © 2020 Facebook. All rights reserved.
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//
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import UIKit
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import Social
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import MobileCoreServices
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import Photos
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class ShareViewController: SLComposeServiceViewController {
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let hostAppBundleIdentifier = "app.esteem.mobile.ios"
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let sharedKey = "ShareKey"
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var sharedMedia: [SharedMediaFile] = []
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var sharedText: [String] = []
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let imageContentType = kUTTypeImage as String
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let textContentType = kUTTypeText as String
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let urlContentType = kUTTypeURL as String
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override func isContentValid() -> Bool {
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// Do validation of contentText and/or NSExtensionContext attachments here
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return true
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}
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override func didSelectPost() {
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// This is called after the user selects Post. Do the upload of contentText and/or NSExtensionContext attachments.
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if let content = extensionContext!.inputItems[0] as? NSExtensionItem {
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if let contents = content.attachments {
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for (index, attachment) in (contents).enumerated() {
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if attachment.hasItemConformingToTypeIdentifier(imageContentType) {
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handleImages(content: content, attachment: attachment, index: index)
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} else if attachment.hasItemConformingToTypeIdentifier(textContentType) {
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handleText(content: content, attachment: attachment, index: index)
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} else if attachment.hasItemConformingToTypeIdentifier(urlContentType) {
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handleUrl(content: content, attachment: attachment, index: index)
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}
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}
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}
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}
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// Inform the host that we're done, so it un-blocks its UI. Note: Alternatively you could call super's -didSelectPost, which will similarly complete the extension context.
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// self.extensionContext!.completeRequest(returningItems: [], completionHandler: nil)
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}
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override func configurationItems() -> [Any]! {
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// To add configuration options via table cells at the bottom of the sheet, return an array of SLComposeSheetConfigurationItem here.
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return []
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}
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private func handleText (content: NSExtensionItem, attachment: NSItemProvider, index: Int) {
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attachment.loadItem(forTypeIdentifier: textContentType, options: nil) { [weak self] data, error in
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if error == nil, let item = data as? String, let this = self {
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this.sharedText.append(item)
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// If this is the last item, save imagesData in userDefaults and redirect to host app
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if index == (content.attachments?.count)! - 1 {
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let userDefaults = UserDefaults(suiteName: "group.com.ecency.eshare")
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userDefaults?.set(this.sharedText, forKey: this.sharedKey)
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userDefaults?.synchronize()
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this.redirectToHostApp(type: .text)
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}
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} else {
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self?.dismissWithError()
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}
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}
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}
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private func handleUrl (content: NSExtensionItem, attachment: NSItemProvider, index: Int) {
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attachment.loadItem(forTypeIdentifier: urlContentType, options: nil) { [weak self] data, error in
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if error == nil, let item = data as? URL, let this = self {
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this.sharedText.append(item.absoluteString)
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// If this is the last item, save imagesData in userDefaults and redirect to host app
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if index == (content.attachments?.count)! - 1 {
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let userDefaults = UserDefaults(suiteName: "group.com.ecency.eshare")
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userDefaults?.set(this.sharedText, forKey: this.sharedKey)
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userDefaults?.synchronize()
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this.redirectToHostApp(type: .text)
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}
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} else {
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self?.dismissWithError()
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}
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}
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}
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private func handleImages (content: NSExtensionItem, attachment: NSItemProvider, index: Int) {
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attachment.loadItem(forTypeIdentifier: imageContentType, options: nil) { [weak self] data, error in
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if error == nil, let url = data as? URL, let this = self {
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// this.redirectToHostApp(type: .media)
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// Always copy
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let fileExtension = this.getExtension(from: url, type: .image)
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let newName = UUID().uuidString
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let newPath = FileManager.default
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.containerURL(forSecurityApplicationGroupIdentifier: "group.com.ecency.eshare")!
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.appendingPathComponent("\(newName).\(fileExtension)")
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let copied = this.copyFile(at: url, to: newPath)
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if(copied) {
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this.sharedMedia.append(SharedMediaFile(path: newPath.absoluteString, thumbnail: nil, duration: nil, type: .image))
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}
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// If this is the last item, save imagesData in userDefaults and redirect to host app
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if index == (content.attachments?.count)! - 1 {
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let userDefaults = UserDefaults(suiteName: "group.com.ecency.eshare")
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userDefaults?.set(this.toData(data: this.sharedMedia), forKey: this.sharedKey)
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userDefaults?.synchronize()
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this.redirectToHostApp(type: .media)
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}
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} else {
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self?.dismissWithError()
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}
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}
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}
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private func dismissWithError() {
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print("[ERROR] Error loading data!")
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let alert = UIAlertController(title: "Error", message: "Error loading data", preferredStyle: .alert)
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let action = UIAlertAction(title: "Error", style: .cancel) { _ in
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self.dismiss(animated: true, completion: nil)
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}
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alert.addAction(action)
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present(alert, animated: true, completion: nil)
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extensionContext!.completeRequest(returningItems: [], completionHandler: nil)
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}
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private func redirectToHostApp(type: RedirectType) {
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let url = URL(string: "ShareMedia://dataUrl=\(sharedKey)#\(type)")
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var responder = self as UIResponder?
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let selectorOpenURL = sel_registerName("openURL:")
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while (responder != nil) {
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if (responder?.responds(to: selectorOpenURL))! {
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let _ = responder?.perform(selectorOpenURL, with: url)
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}
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responder = responder!.next
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}
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extensionContext!.completeRequest(returningItems: [], completionHandler: nil)
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}
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enum RedirectType {
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case media
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case text
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case file
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}
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func getExtension(from url: URL, type: SharedMediaType) -> String {
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let parts = url.lastPathComponent.components(separatedBy: ".")
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var ex: String? = nil
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if (parts.count > 1) {
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ex = parts.last
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}
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if (ex == nil) {
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switch type {
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case .image:
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ex = "PNG"
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case .file:
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ex = "TXT"
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}
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}
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return ex ?? "Unknown"
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}
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func getFileName(from url: URL) -> String {
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var name = url.lastPathComponent
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if (name == "") {
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name = UUID().uuidString + "." + getExtension(from: url, type: .file)
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}
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return name
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}
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func copyFile(at srcURL: URL, to dstURL: URL) -> Bool {
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do {
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if FileManager.default.fileExists(atPath: dstURL.path) {
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try FileManager.default.removeItem(at: dstURL)
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}
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try FileManager.default.copyItem(at: srcURL, to: dstURL)
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} catch (let error) {
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print("Cannot copy item at \(srcURL) to \(dstURL): \(error)")
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return false
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}
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return true
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}
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private func getThumbnailPath(for url: URL) -> URL {
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let fileName = Data(url.lastPathComponent.utf8).base64EncodedString().replacingOccurrences(of: "==", with: "")
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let path = FileManager.default
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.containerURL(forSecurityApplicationGroupIdentifier: "group.com.ecency.eshare")!
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.appendingPathComponent("\(fileName).jpg")
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return path
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}
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class SharedMediaFile: Codable {
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var path: String; // can be image, video or url path. It can also be text content
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var thumbnail: String?; // video thumbnail
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var duration: Double?; // video duration in milliseconds
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var type: SharedMediaType;
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init(path: String, thumbnail: String?, duration: Double?, type: SharedMediaType) {
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self.path = path
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self.thumbnail = thumbnail
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self.duration = duration
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self.type = type
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}
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// Debug method to print out SharedMediaFile details in the console
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func toString() {
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print("[SharedMediaFile] \n\tpath: \(self.path)\n\tthumbnail: \(self.thumbnail)\n\tduration: \(self.duration)\n\ttype: \(self.type)")
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}
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}
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enum SharedMediaType: Int, Codable {
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case image
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case file
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}
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func toData(data: [SharedMediaFile]) -> Data {
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let encodedData = try? JSONEncoder().encode(data)
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return encodedData!
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}
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}
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extension Array {
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subscript (safe index: UInt) -> Element? {
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return Int(index) < count ? self[Int(index)] : nil
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}
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}
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