added iOS source code

[wl-app.git] / iOS / WolneLektury / Screens / NewsDetails / NewsDetailsViewController.swift

diff --git a/iOS/WolneLektury/Screens/NewsDetails/NewsDetailsViewController.swift b/iOS/WolneLektury/Screens/NewsDetails/NewsDetailsViewController.swift
new file mode 100644 (file)
index 0000000..473a66b
--- /dev/null
+++ b/iOS/WolneLektury/Screens/NewsDetails/NewsDetailsViewController.swift
@@ -0,0 +1,155 @@
+//
+//  NewsDetailsViewController.swift
+//  WolneLektury
+//
+//  Created by Pawel Dabrowski on 15/09/2018.
+//  Copyright © 2018 Fundacja Nowoczesna Polska. All rights reserved.
+//
+
+import UIKit
+
+class NewsDetailsViewController: WLViewController {
+
+    @IBOutlet weak var scrollView: UIScrollView!
+    @IBOutlet weak var backButton: UIButton!
+    @IBOutlet weak var headerView: UIView!
+    @IBOutlet weak var titleLabel: UILabel!
+    
+    @IBOutlet weak var whenTitleLabel: UILabel!
+    @IBOutlet weak var whenDescLabel: UILabel!
+    @IBOutlet weak var whereTitleLabel: UILabel!
+    @IBOutlet weak var whereDescLabel: UILabel!
+    @IBOutlet weak var descLabel: UILabel!
+    
+    @IBOutlet weak var shareButton: UIButton!
+    @IBOutlet weak var galleryCollectionView: UICollectionView!
+    @IBOutlet weak var pageControl: UIPageControl!
+    @IBOutlet weak var headerViewHeightLayoutConstraint: NSLayoutConstraint!
+
+    private var flowLayout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
+    
+    var imageFullScreen = false
+    var countDidLayoutSubviews = 0
+    var collectionViewInitialized = false
+    var newsModel: NewsModel!
+    var smallHeaderHeight: CGFloat = 200
+    
+    open override var preferredStatusBarStyle : UIStatusBarStyle {
+        return .lightContent
+    }
+
+    static func instance(newsModel: NewsModel) -> NewsDetailsViewController {
+        let controller = NewsDetailsViewController.instance()
+        controller.newsModel = newsModel
+        return controller
+    }
+
+    public var currentPage: Int {
+        get {
+            return Int(galleryCollectionView.contentOffset.x / galleryCollectionView.frame.size.width)
+        }
+    }
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        title = newsModel.title
+        smallHeaderHeight = 44 + UIApplication.shared.statusBarFrame.size.height
+        updatePageControl()
+
+        DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
+            self.setupCollectionViewIfNeeded()
+        }
+        shareButton.layer.cornerRadius = 21
+        shareButton.addDropShadow()
+        
+        titleLabel.text = newsModel.title
+        whenTitleLabel.text = "news_when".localized
+        whenDescLabel.text = newsModel.time
+        whereTitleLabel.text = "news_where".localized
+        whereDescLabel.text = newsModel.place
+        
+        if let htmlString = try? NSAttributedString(html: newsModel.body){
+            descLabel.attributedText =  htmlString
+        }
+        else {
+            descLabel.text = newsModel.body
+        }
+    }
+    
+    func updatePageControl()  {
+        pageControl.currentPage = currentPage
+    }
+
+    private func setupCollectionViewIfNeeded(){
+        if collectionViewInitialized == false{
+            setupCollectionView()
+        }
+    }
+
+    private func setupCollectionView(){// -> UICollectionView {
+        // Set up flow layout
+        collectionViewInitialized = true
+        
+        flowLayout.scrollDirection = UICollectionViewScrollDirection.horizontal
+        flowLayout.minimumInteritemSpacing = 0
+        flowLayout.minimumLineSpacing = 0
+        
+        let size = galleryCollectionView.bounds.size
+        flowLayout.itemSize = size
+        
+        galleryCollectionView.collectionViewLayout = flowLayout
+        galleryCollectionView.register(UINib (nibName: "SimpleGalleryCollectionViewCell", bundle: nil), forCellWithReuseIdentifier: "SimpleGalleryCollectionViewCell")
+        galleryCollectionView.dataSource = self
+        galleryCollectionView.delegate = self
+        galleryCollectionView.backgroundColor = UIColor.black
+        galleryCollectionView.isPagingEnabled = true
+        
+        galleryCollectionView.contentSize = CGSize(width: 1000.0, height: 1.0)
+        
+        galleryCollectionView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(NewsDetailsViewController.collectionViewTapped)))
+    }
+
+    @objc func collectionViewTapped() {
+        guard newsModel.gallery_urls.count > 0 else{
+            return
+        }
+        
+        navigationController?.present(GalleryViewController.instance(photos: newsModel.gallery_urls,startIndex: currentPage), animated: true, completion: nil)
+    }
+    
+    @IBAction func shareButtonAction(_ sender: UIButton) {
+        if let url = newsModel?.url {
+
+            self.share(string: url, button: sender)
+
+        }
+    }
+}
+
+extension NewsDetailsViewController: UICollectionViewDataSource {
+    
+    public func numberOfSections(in collectionView: UICollectionView) -> Int {
+        return 1
+    }
+    
+    public func collectionView(_ imageCollectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
+        return newsModel.gallery_urls.count
+    }
+    
+    public func collectionView(_ imageCollectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
+        
+        let cell = imageCollectionView.dequeueReusableCell(withReuseIdentifier: "SimpleGalleryCollectionViewCell", for: indexPath) as! SimpleGalleryCollectionViewCell
+        cell.setup(imageUrlString: newsModel.gallery_urls[indexPath.row])
+        return cell
+    }
+}
+
+extension NewsDetailsViewController: UICollectionViewDelegate {
+    
+    public func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
+        
+        // If the scroll animation ended, update the page control to reflect the current page we are on
+        updatePageControl()
+    }
+}