Add source

OpenSourceController/Classes/Controller/OpenSourceController.swift

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+//
+//  OpenSourceController.swift
+//  Pods
+//
+//  Created by Florian Gabach on 05/02/2017.
+//
+//
+
+import UIKit
+
+public class OpenSourceController: NSObject {
+
+    // Contains list of licence object 
+    public var licences: [LicenceFile]?
+
+    /// Present OpenSourceViewController embbeded in navigation controller
+    ///
+    /// - Parameter from: the source controller 
+    public final func presentOpenSourceController(from: UIViewController) {
+        // Create open source controller
+        let licenceController = OpenSourceViewController()
+
+        // Init licence 
+        licenceController.licences = self.licences
+
+        // Embed in navigation controller
+        let navController = UINavigationController(rootViewController: licenceController)
+
+        // Present controller 
+        from.present(navController, animated: true)
+    }
+}

OpenSourceController/Classes/Controller/OpenSourceViewController.swift

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+//
+//  OpenSourceViewController.swift
+//  Pods
+//
+//  Created by Florian Gabach on 05/02/2017.
+//
+//
+
+import UIKit
+
+class OpenSourceViewController: UITableViewController {
+
+    // MARK: - Var
+
+    /// Loading indicator 
+    fileprivate var indicator = UIActivityIndicatorView()
+
+    /// TableViewCell identifier
+    private let reuseIdentifier = "openSourceCell"
+
+    /// Contains all licence object before downloaded 
+    var licences: [LicenceFile]?
+
+    /// Contains all licences object after downloaded
+    fileprivate var downloadedLicence: [LicenceFile]? {
+        didSet {
+            // Update UI 
+            DispatchQueue.main.async {
+                self.stopLoading()
+                self.tableView.reloadData()
+            }
+        }
+    }
+
+    // MARK: - Lifecyle
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        // Prepare tableview
+        self.prepareTableView()
+
+        // Download licences
+        self.prepareLicences()
+    }
+
+    override func didReceiveMemoryWarning() {
+        super.didReceiveMemoryWarning()
+    }
+
+    // MARK: - Prepare
+
+    /// Download licences 
+    fileprivate func prepareLicences() {
+        if let licences = self.licences {
+            self.startLoading()
+            LicenceDownloader.downloadLicences(licences: licences) { () in
+                // Update licences 
+                self.downloadedLicence = self.licences
+            }
+        }
+    }
+
+    /// Init tableView dataSource, delegate, bar button & title
+    fileprivate func prepareTableView() {
+        // Common init
+        self.tableView.tableFooterView = UIView()
+        self.title = NSLocalizedString("Tiers library", comment: "")
+        self.tableView.register(OpenSourceTableViewCell.self, forCellReuseIdentifier: self.reuseIdentifier)
+        self.tableView.dataSource = self
+        self.tableView.delegate = self
+        self.tableView.separatorStyle = .singleLine
+
+        // Close button (on the right corner of navigation bar)
+        let closeButton = UIBarButtonItem(barButtonSystemItem: .stop,
+                                          target: self,
+                                          action: #selector(self.closePicker))
+        self.navigationItem.rightBarButtonItem = closeButton
+
+        // Loading indicator
+        self.prepareActivityIndicator()
+    }
+
+    // MARK: - Loading indicator
+
+    /// Prepare UIActivityIndicatorView and display it at the center of the view
+    fileprivate func prepareActivityIndicator() {
+        self.indicator = UIActivityIndicatorView(frame:CGRect(x: 0, y: 0, width: 40, height: 40) )
+        self.indicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.gray
+        self.indicator.center = self.view.center
+        self.view.addSubview(indicator)
+    }
+
+    /// Start loading : start the loader animation 
+    fileprivate func startLoading() {
+        self.indicator.startAnimating()
+        self.indicator.backgroundColor = UIColor.clear
+        self.indicator.color = UIColor.black
+        self.indicator.isHidden = false
+    }
+
+    /// Stop loading : stop and hide the loader
+    fileprivate func stopLoading() {
+        self.indicator.hidesWhenStopped = true
+        self.indicator.stopAnimating()
+        self.indicator.isHidden = true
+    }
+
+    // MARK: - Table View Data Source
+
+    override func numberOfSections(in tableView: UITableView) -> Int {
+        return 1
+    }
+
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return self.downloadedLicence?.count ?? 0
+    }
+
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        var cell = tableView.dequeueReusableCell(withIdentifier: self.reuseIdentifier,
+                                                 for: indexPath) as? OpenSourceTableViewCell
+        if cell == nil {
+            cell = OpenSourceTableViewCell(style: UITableViewCellStyle.default,
+                                           reuseIdentifier: self.reuseIdentifier)
+        }
+
+        let libraryTitleAttribut = [NSFontAttributeName: UIFont.boldSystemFont(ofSize: UIFont.systemFontSize + 2)]
+        let libraryLicenceAttribut = [NSFontAttributeName: UIFont.systemFont(ofSize: UIFont.systemFontSize)]
+        let libraryTitle = NSMutableAttributedString(string: self.downloadedLicence?[indexPath.row].title ?? "",
+                                                     attributes: libraryTitleAttribut)
+        libraryTitle.append(NSAttributedString(string: "\n\n"))
+        libraryTitle.append(NSAttributedString(string: self.downloadedLicence?[indexPath.row].detail ?? "",
+                                               attributes: libraryLicenceAttribut))
+        cell?.textLabel?.attributedText = libraryTitle
+
+        return cell!
+    }
+
+    override func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
+        return UITableViewAutomaticDimension
+    }
+
+    // MARK: - Action
+
+    /// Handler for click on close button
+    @objc fileprivate func closePicker() {
+        self.dismissController()
+    }
+
+    // MARK: - Navigation
+
+    /// Dismiss the OpenSourceController
+    func dismissController() {
+        DispatchQueue.main.async {
+            self.dismiss(animated: true, completion: nil)
+        }
+    }
+}

OpenSourceController/Classes/Model/LicenceDownloader.swift

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+//
+//  LicenceDownloader.swift
+//  Pods
+//
+//  Created by Florian Gabach on 21/02/2017.
+//
+//
+
+import UIKit
+
+class LicenceDownloader: NSObject {
+
+    /// Download every licence 
+    ///
+    /// - Parameters:
+    ///   - licences: array which contains licence model model 
+    ///   - completion: end downloading completion
+    class func downloadLicences(licences: [LicenceFile],
+                                completion: @escaping () -> Void) {
+        // Number of licences 
+        let licenceCount = licences.count
+
+        // Already licence downloaded 
+        var alreadyDownloaded = 0
+
+        // Download licence's detail for every lience 
+        for licence in licences {
+            licence.downloadLicenceDetail(completion: { () in
+                alreadyDownloaded += 1
+
+                // If this is the last licence, perfom completion
+                if licenceCount == alreadyDownloaded {
+                    completion()
+                }
+            })
+        }
+    }
+}

OpenSourceController/Classes/Model/LicenceFile.swift

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+//
+//  LicenceFile.swift
+//  Pods
+//
+//  Created by Florian Gabach on 05/02/2017.
+//
+//
+
+import UIKit
+
+public class LicenceFile: NSObject {
+
+    // MARK- Var 
+
+    /// Name of the library 
+    var title: String?
+
+    /// Url of the library's licence 
+    var url: String
+
+    /// Library's licence
+    var detail: String?
+
+    // MARK- Init
+
+    /// Licence initializer 
+    ///
+    /// - Parameters:
+    ///   - title: name of the library
+    ///   - url: url of the licence content 
+    public init(title: String, url: String) {
+        self.title = title
+        self.url = url
+    }
+
+    /// Download licence detail
+    ///
+    /// - Parameter completion: end of download handler
+    func downloadLicenceDetail(completion: @escaping (Void) -> Void) {
+        if let url = URL(string: self.url) {
+            let task = URLSession.shared.dataTask(with: url) { (data, _, _) in
+                if let data = data,
+                    let html = String(data: data, encoding: String.Encoding.utf8) {
+
+                    // Update licence model 
+                    self.detail = html
+
+                    // Log 
+                    print("Licence for \(self.title ?? "") downloaded with success.")
+                }
+                completion()
+            }
+            task.resume()
+        }
+    }
+}

OpenSourceController/Classes/View/OpenSourceTableViewCell.swift

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+//
+//  OpenSourceTableViewCell.swift
+//  Pods
+//
+//  Created by Florian Gabach on 05/02/2017.
+//
+//
+
+import UIKit
+
+class OpenSourceTableViewCell: UITableViewCell {
+
+    // MARK: IBOutlet
+
+    @IBOutlet var licenceTitle: UILabel!
+    @IBOutlet var licenceDesc: UILabel!
+
+    // MARK: - Lifecycle
+
+    override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
+        super.init(style: .default,
+                   reuseIdentifier: reuseIdentifier)
+
+        self.prepareCellComponent()
+    }
+
+    required init?(coder aDecoder: NSCoder) {
+        super.init(coder: aDecoder)
+    }
+
+    override func setSelected(_ selected: Bool, animated: Bool) {
+        super.setSelected(selected, animated: animated)
+    }
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+    }
+
+    // MARK: - Prepare
+
+    func prepareCellComponent() {
+        // Text
+        self.textLabel?.numberOfLines = 0
+
+        // Common init
+        self.accessoryType = .none
+        self.selectionStyle = .none
+    }
+
+    // MARK: - Configure
+
+    /// Initialize the cell content with Licence model 
+    ///
+    /// - Parameter licence: the licence model 
+    func configure(licence: LicenceFile) {
+
+        // Library's name
+        self.licenceTitle.text = licence.title
+
+        // Library licence's detail
+        self.licenceDesc.text = licence.detail
+    }
+}