iOS/Pods/FolioReaderKit/Source/FolioReaderPageIndicator.swift

   1 //
   2 //  FolioReaderPageIndicator.swift
   3 //  FolioReaderKit
   4 //
   5 //  Created by Heberti Almeida on 10/09/15.
   6 //  Copyright (c) 2015 Folio Reader. All rights reserved.
   7 //
   8
   9 import UIKit
  10
  11 class FolioReaderPageIndicator: UIView {
  12     var pagesLabel: UILabel!
  13     var minutesLabel: UILabel!
  14     var totalMinutes: Int!
  15     var totalPages: Int!
  16     var currentPage: Int = 1 {
  17         didSet { self.reloadViewWithPage(self.currentPage) }
  18     }
  19
  20     fileprivate var readerConfig: FolioReaderConfig
  21     fileprivate var folioReader: FolioReader
  22
  23     init(frame: CGRect, readerConfig: FolioReaderConfig, folioReader: FolioReader) {
  24         self.readerConfig = readerConfig
  25         self.folioReader = folioReader
  26
  27         super.init(frame: frame)
  28
  29         let color = self.folioReader.isNight(self.readerConfig.nightModeBackground, UIColor.white)
  30         backgroundColor = color
  31         layer.shadowColor = color.cgColor
  32         layer.shadowOffset = CGSize(width: 0, height: -6)
  33         layer.shadowOpacity = 1
  34         layer.shadowRadius = 4
  35         layer.shadowPath = UIBezierPath(rect: bounds).cgPath
  36         layer.rasterizationScale = UIScreen.main.scale
  37         layer.shouldRasterize = true
  38
  39         pagesLabel = UILabel(frame: CGRect.zero)
  40         pagesLabel.font = UIFont(name: "Avenir-Light", size: 10)!
  41         pagesLabel.textAlignment = NSTextAlignment.right
  42         addSubview(pagesLabel)
  43
  44         minutesLabel = UILabel(frame: CGRect.zero)
  45         minutesLabel.font = UIFont(name: "Avenir-Light", size: 10)!
  46         minutesLabel.textAlignment = NSTextAlignment.right
  47         //        minutesLabel.alpha = 0
  48         addSubview(minutesLabel)
  49     }
  50
  51     required init?(coder aDecoder: NSCoder) {
  52         fatalError("storyboards are incompatible with truth and beauty")
  53     }
  54
  55     func reloadView(updateShadow: Bool) {
  56         minutesLabel.sizeToFit()
  57         pagesLabel.sizeToFit()
  58
  59         let fullW = pagesLabel.frame.width + minutesLabel.frame.width
  60         minutesLabel.frame.origin = CGPoint(x: frame.width/2-fullW/2, y: 2)
  61         pagesLabel.frame.origin = CGPoint(x: minutesLabel.frame.origin.x+minutesLabel.frame.width, y: 2)
  62
  63         if updateShadow {
  64             layer.shadowPath = UIBezierPath(rect: bounds).cgPath
  65             self.reloadColors()
  66         }
  67     }
  68
  69     func reloadColors() {
  70         let color = self.folioReader.isNight(self.readerConfig.nightModeBackground, UIColor.white)
  71         backgroundColor = color
  72
  73         // Animate the shadow color change
  74         let animation = CABasicAnimation(keyPath: "shadowColor")
  75         let currentColor = UIColor(cgColor: layer.shadowColor!)
  76         animation.fromValue = currentColor.cgColor
  77         animation.toValue = color.cgColor
  78         animation.fillMode = kCAFillModeForwards
  79         animation.isRemovedOnCompletion = false
  80         animation.duration = 0.6
  81         animation.delegate = self
  82         animation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
  83         layer.add(animation, forKey: "shadowColor")
  84
  85         minutesLabel.textColor = self.folioReader.isNight(UIColor(white: 1, alpha: 0.3), UIColor(white: 0, alpha: 0.6))
  86         pagesLabel.textColor = self.folioReader.isNight(UIColor(white: 1, alpha: 0.6), UIColor(white: 0, alpha: 0.9))
  87     }
  88
  89     fileprivate func reloadViewWithPage(_ page: Int) {
  90         let pagesRemaining = self.folioReader.needsRTLChange ? totalPages-(totalPages-page+1) : totalPages-page
  91
  92         if pagesRemaining == 1 {
  93             pagesLabel.text = " " + self.readerConfig.localizedReaderOnePageLeft
  94         }
  95 //        else {
  96 //            pagesLabel.text = " \(pagesRemaining) " + self.readerConfig.localizedReaderManyPagesLeft
  97 //        }
  98         else if pagesRemaining == 0 {
  99             pagesLabel.text = "0 stron do końca"
 100         }
 101         else if pagesRemaining < 5 {
 102             pagesLabel.text = " \(pagesRemaining) " + self.readerConfig.localizedReaderManyPagesLeft
 103         }
 104         else {
 105             pagesLabel.text = " \(pagesRemaining) " + "stron do końca"
 106         }
 107
 108         // PD: Changed
 109
 110         minutesLabel.text = ""
 111 //        let minutesRemaining = Int(ceil(CGFloat((pagesRemaining * totalMinutes)/totalPages)))
 112 //        if minutesRemaining > 1 {
 113 //            minutesLabel.text = "\(minutesRemaining) " + self.readerConfig.localizedReaderManyMinutes+" ·"
 114 //        } else if minutesRemaining == 1 {
 115 //            minutesLabel.text = self.readerConfig.localizedReaderOneMinute+" ·"
 116 //        } else {
 117 //            minutesLabel.text = self.readerConfig.localizedReaderLessThanOneMinute+" ·"
 118 //        }
 119
 120         reloadView(updateShadow: false)
 121     }
 122 }
 123
 124 extension FolioReaderPageIndicator: CAAnimationDelegate {
 125     func animationDidStop(_ anim: CAAnimation, finished flag: Bool) {
 126         // Set the shadow color to the final value of the animation is done
 127         if let keyPath = anim.value(forKeyPath: "keyPath") as? String , keyPath == "shadowColor" {
 128             let color = self.folioReader.isNight(self.readerConfig.nightModeBackground, UIColor.white)
 129             layer.shadowColor = color.cgColor
 130         }
 131     }
 132 }