Expose font settings - closes #33

Example/StoryboardExample/Base.lproj/Main.storyboard

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15G31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15G1004" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
     <dependencies>
         <deployment identifier="iOS"/>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
@@ -19,27 +19,35 @@
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
                             <containerView opaque="NO" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="76c-NV-rFk">
-                                <rect key="frame" x="100" y="100" width="500" height="400"/>
+                                <rect key="frame" x="50" y="0.0" width="500" height="400"/>
                                 <connections>
                                     <segue destination="ohM-0F-lQn" kind="embed" id="GwJ-h1-STP"/>
                                 </connections>
                             </containerView>
                         </subviews>
                         <color key="backgroundColor" white="0.0" alpha="1" colorSpace="calibratedWhite"/>
                         <constraints>
-                            <constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="76c-NV-rFk" secondAttribute="bottom" constant="100" id="8t2-cj-MBZ"/>
-                            <constraint firstItem="76c-NV-rFk" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" constant="100" id="NRZ-uj-OHl"/>
+                            <constraint firstItem="76c-NV-rFk" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" constant="80" id="0D6-Fj-fwv"/>
+                            <constraint firstItem="76c-NV-rFk" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" id="1FY-cA-fGb"/>
+                            <constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="76c-NV-rFk" secondAttribute="bottom" constant="200" id="8t2-cj-MBZ"/>
+                            <constraint firstItem="76c-NV-rFk" firstAttribute="top" secondItem="8bC-Xf-vdC" secondAttribute="top" id="N9R-fw-Ou2"/>
+                            <constraint firstItem="76c-NV-rFk" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" constant="50" id="NRZ-uj-OHl"/>
                             <constraint firstItem="76c-NV-rFk" firstAttribute="top" secondItem="8bC-Xf-vdC" secondAttribute="top" constant="100" id="Oo2-Kp-m9H"/>
                             <constraint firstItem="76c-NV-rFk" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" constant="100" id="QPp-IK-WD4"/>
-                            <constraint firstAttribute="trailing" secondItem="76c-NV-rFk" secondAttribute="trailing" id="ZS5-v1-RfB"/>
+                            <constraint firstAttribute="trailing" secondItem="76c-NV-rFk" secondAttribute="trailing" constant="50" id="ZS5-v1-RfB"/>
                             <constraint firstItem="76c-NV-rFk" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leadingMargin" constant="20" id="aFJ-E1-Z7h"/>
                             <constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="76c-NV-rFk" secondAttribute="bottom" constant="100" id="bTg-k8-90V"/>
+                            <constraint firstItem="76c-NV-rFk" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" id="hhc-EW-4bw"/>
                             <constraint firstAttribute="trailingMargin" secondItem="76c-NV-rFk" secondAttribute="trailing" constant="20" id="vz9-fJ-FdF"/>
                         </constraints>
                         <variation key="default">
                             <mask key="constraints">
+                                <exclude reference="0D6-Fj-fwv"/>
+                                <exclude reference="1FY-cA-fGb"/>
+                                <exclude reference="Oo2-Kp-m9H"/>
                                 <exclude reference="QPp-IK-WD4"/>
                                 <exclude reference="aFJ-E1-Z7h"/>
+                                <exclude reference="hhc-EW-4bw"/>
                                 <exclude reference="vz9-fJ-FdF"/>
                                 <exclude reference="bTg-k8-90V"/>
                             </mask>

Example/StoryboardExample/ExampleFolioReaderContainer.swift

@@ -16,7 +16,16 @@ class ExampleFolioReaderContainer: FolioReaderContainer {
 
         let config = FolioReaderConfig()
         config.scrollDirection = .horizontalWithVerticalContent
-
+		config.shouldHideNavigationOnTap = false
+
+		// Print the chapter ID if one was clicked
+		// A chapter in "The Silver Chair" looks like this "<section class="chapter" title="Chapter I" epub:type="chapter" id="id70364673704880">"
+		// To knwo if a user tapped on a chapter we can listen to events on the class "chapter" and receive the id value
+		let listener = ClassBasedOnClickListener(schemeName: "chaptertapped", querySelector: ".chapter", attributeName: "id", onClickAction: { (parameterContent: String?) in
+			print("chapter with id: " + (parameterContent ?? "-") + " clicked")
+		})
+		config.classBasedOnClickListeners.append(listener)
+
         guard let bookPath = NSBundle.mainBundle().pathForResource("The Silver Chair", ofType: "epub") else { return }
         setupConfig(config, epubPath: bookPath)
 	}

Source/FolioReaderAudioPlayer.swift

@@ -152,7 +152,7 @@ public class FolioReaderAudioPlayer: NSObject {
 
     func play() {
         if book.hasAudio() {
-            guard let currentPage = FolioReader.sharedInstance.readerCenter.currentPage else { return }
+            guard let currentPage = FolioReader.sharedInstance.readerCenter?.currentPage else { return }
             currentPage.webView.js("playAudio()")
         } else {
             readCurrentSentence()
@@ -212,7 +212,7 @@ public class FolioReaderAudioPlayer: NSObject {
     func playPrevChapter() {
         stopPlayerTimer()
         // Wait for "currentPage" to update, then request to play audio
-        FolioReader.sharedInstance.readerCenter.changePageToPrevious {
+        FolioReader.sharedInstance.readerCenter?.changePageToPrevious {
             if self.isPlaying() {
                 self.play()
             } else {
@@ -224,7 +224,7 @@ public class FolioReaderAudioPlayer: NSObject {
     func playNextChapter() {
         stopPlayerTimer()
         // Wait for "currentPage" to update, then request to play audio
-        FolioReader.sharedInstance.readerCenter.changePageToNext {
+        FolioReader.sharedInstance.readerCenter?.changePageToNext {
             if self.isPlaying() {
                 self.play()
             }
@@ -293,7 +293,7 @@ public class FolioReaderAudioPlayer: NSObject {
         // get the fragment ID so we can "mark" it in the webview
         let textParts = textFragment!.componentsSeparatedByString("#")
         let fragmentID = textParts[1];
-        FolioReader.sharedInstance.readerCenter.audioMark(href: currentHref, fragmentID: fragmentID)
+        FolioReader.sharedInstance.readerCenter?.audioMark(href: currentHref, fragmentID: fragmentID)
 
         return true
     }
@@ -353,18 +353,23 @@ public class FolioReaderAudioPlayer: NSObject {
     // MARK: TTS Sentence
 
     func speakSentence() {
-        guard let currentPage = FolioReader.sharedInstance.readerCenter.currentPage else { return }
+		guard let
+			readerCenter = FolioReader.sharedInstance.readerCenter,
+			currentPage = readerCenter.currentPage else {
+				return
+		}
+
         let sentence = currentPage.webView.js("getSentenceWithIndex('\(book.playbackActiveClass())')")
 
         if sentence != nil {
-            let chapter = FolioReader.sharedInstance.readerCenter.getCurrentChapter()
+            let chapter = readerCenter.getCurrentChapter()
             let href = chapter != nil ? chapter!.href : "";
             playText(href, text: sentence!)
         } else {
-            if FolioReader.sharedInstance.readerCenter.isLastPage() {
+            if readerCenter.isLastPage() {
                 stop()
             } else {
-                FolioReader.sharedInstance.readerCenter.changePageToNext()
+                readerCenter.changePageToNext()
             }
         }
     }
@@ -378,7 +383,7 @@ public class FolioReaderAudioPlayer: NSObject {
         } else {
             if synthesizer.speaking {
                 stopSynthesizer(immediate: false, completion: {
-                    if let currentPage = FolioReader.sharedInstance.readerCenter.currentPage {
+                    if let currentPage = FolioReader.sharedInstance.readerCenter?.currentPage {
                         currentPage.webView.js("resetCurrentSentenceIndex()")
                     }
                     self.speakSentence()
@@ -463,7 +468,7 @@ public class FolioReaderAudioPlayer: NSObject {
      the `currentPage` in ReaderCenter may not have updated just yet
      */
     func getCurrentChapterName() -> String? {
-        guard let chapter = FolioReader.sharedInstance.readerCenter.getCurrentChapter() else {
+        guard let chapter = FolioReader.sharedInstance.readerCenter?.getCurrentChapter() else {
             return nil
         }
 

Source/FolioReaderCenter.swift

@@ -358,25 +358,7 @@ public class FolioReaderCenter: UIViewController, UICollectionViewDelegate, UICo
         html = html?.stringByReplacingOccurrencesOfString("</head>", withString: toInject)
 
         // Font class name
-        var classes = ""
-        let currentFontName = FolioReader.currentFontName
-        switch currentFontName {
-        case 0:
-            classes = "andada"
-            break
-        case 1:
-            classes = "lato"
-            break
-        case 2:
-            classes = "lora"
-            break
-        case 3:
-            classes = "raleway"
-            break
-        default:
-            break
-        }
-
+        var classes = FolioReader.currentFont.cssIdentifier
         classes += " "+FolioReader.currentMediaOverlayStyle.className()
 
         // Night mode
@@ -385,26 +367,7 @@ public class FolioReaderCenter: UIViewController, UICollectionViewDelegate, UICo
         }
 
         // Font Size
-        let currentFontSize = FolioReader.currentFontSize
-        switch currentFontSize {
-        case 0:
-            classes += " textSizeOne"
-            break
-        case 1:
-            classes += " textSizeTwo"
-            break
-        case 2:
-            classes += " textSizeThree"
-            break
-        case 3:
-            classes += " textSizeFour"
-            break
-        case 4:
-            classes += " textSizeFive"
-            break
-        default:
-            break
-        }
+        classes += " \(FolioReader.currentFontSize.cssIdentifier)"
 
         html = html?.stringByReplacingOccurrencesOfString("<html ", withString: "<html class=\"\(classes)\"")
 

Source/FolioReaderConfig.swift

@@ -8,6 +8,8 @@
 
 import UIKit
 
+// MARK: - FolioReaderScrollDirection
+
 /**
  Defines the Reader scrolling direction
  */
@@ -37,12 +39,58 @@ public enum FolioReaderScrollDirection: Int {
     }
 }
 
+// MARK: - ClassBasedOnClickListener
+
+/**
+A `ClassBasedOnClickListener` takes a closure which is performed if a given html `class` is clicked. The closure will reveice the content of the specified parameter.
+
+Eg. A ClassBasedOnClickListener with the className "quote" and parameterName "id" with the given epub html content "<section class="quote" id="12345">" would call the given closure on a click on this section with the String "12345" as parameter.
+
+*/
+public struct ClassBasedOnClickListener {
+
+	/// The name of the URL scheme which should be used. Note: Make sure that the given `String` is a valid as scheme name.
+	public var schemeName			: String
+
+	/// The query selector for the elements which the listener should be added to. See https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector for further information about query selectors.
+	public var querySelector		: String
+
+	/// The name of the attribute whose content should be passed to the `onClickAction` action.
+	public var attributeName		: String
+
+	/// Whether the listener should be added to all found elements or only to the first one. See https://developer.mozilla.org/en-US/docs/Web/API/Element/querySelectorAll for further information. The default value is `true`.
+	public var selectAll			: Bool
+
+	/// The closure which will be called if the specified class was clicked.
+	public var onClickAction		: ((parameterContent: String?) -> Void)
+
+	/// Initializes a `ClassBasedOnClickListener` instance. Append it to the `classBasedOnClickListeners` property from the `FolioReaderConfig` to receive on click events. The default `selectAll` value is `true`.
+	public init(schemeName: String, querySelector: String, attributeName: String, selectAll: Bool = true, onClickAction: ((attributeContent: String?) -> Void)) {
+		self.schemeName = schemeName.lowercaseString
+		self.querySelector = querySelector
+		self.attributeName = attributeName
+		self.selectAll = selectAll
+		self.onClickAction = onClickAction
+	}
+}
+
+// MARK: - FolioReaderConfig
 
 /**
  Defines the Reader custom configuration
  */
 public class FolioReaderConfig: NSObject {
-
+
+	// MARK: ClassBasedOnClickListener
+
+	/**
+	Array of `ClassBasedOnClickListener` objects. A `ClassBasedOnClickListener` takes a closure which is performed if a given html `class` is clicked. The closure will reveice the content of the specified parameter.
+
+	Eg. A ClassBasedOnClickListener with the className "quote" and parameterName "id" with the given epub html content "<section class="quote" id="12345">" would call the given closure on a click on this section with the String "12345" as parameter.
+
+	*/
+	public var classBasedOnClickListeners = [ClassBasedOnClickListener]()
+
     // MARK: Colors
 
     /// Base header custom TintColor

Source/FolioReaderContainer.swift

@@ -59,10 +59,10 @@ public class FolioReaderContainer: UIViewController {
 
         // Register custom fonts
         FontBlaster.blast(NSBundle.frameworkBundle())
-        
+
         // Register initial defaults
         FolioReader.defaults.registerDefaults([
-            kCurrentFontFamily: 0,
+            kCurrentFontFamily: FolioReaderFont.Andada.rawValue,
             kNightMode: false,
             kCurrentFontSize: 2,
             kCurrentAudioRate: 1,