feat: Support for Audiobooks

.gitignore

@@ -90,3 +90,4 @@ lib/**/*.freezed.dart
 **/.build/
 **/*.freezed.dart
 **/*.g.dart
+flutter_readium/example/devtools_options.yaml

.vscode/settings.json

@@ -50,6 +50,7 @@
     "kotlinx",
     "podfile",
     "podspec",
+    "prefs",
     "Prefs",
     "readium"
   ]

bin/forAll

@@ -9,9 +9,8 @@ then
 fi
 
 dir=(
-  "./flutter_readium"
+	"./flutter_readium"
 	"./flutter_readium_platform_interface"
-	"./flutter_readium_web"
 )
 for i in "${dir[@]}"; do
 	echo -e "\033[35;1m=== $@ $i ===\033[0m"

flutter_readium/android/build.gradle

@@ -68,8 +68,8 @@ dependencies {
   implementation "org.readium.kotlin-toolkit:readium-navigator-media-tts:$readium_version"
   // implementation "androidx.compose.ui:ui:1.8.2" // UI
   // implementation "androidx.activity:activity-compose:1.10.1" // Activity Compose integration
-  // implementation "org.readium.kotlin-toolkit:readium-navigator-media-audio:$readium_version"
-  // implementation "org.readium.kotlin-toolkit:readium-adapter-exoplayer-audio:$readium_version"
+  implementation "org.readium.kotlin-toolkit:readium-navigator-media-audio:$readium_version"
+  implementation "org.readium.kotlin-toolkit:readium-adapter-exoplayer-audio:$readium_version"
   // implementation "org.readium.kotlin-toolkit:readium-adapter-pspdfkit-document:$readium_version"
   // implementation "org.readium.kotlin-toolkit:readium-adapter-pspdfkit-navigator:$readium_version"
   //implementation "org.readium.kotlin-toolkit:readium-lcp:$readium_version"

flutter_readium/android/src/main/kotlin/dk/nota/flutter_readium/FlutterReadiumPlugin.kt

@@ -44,10 +44,11 @@ class FlutterReadiumPlugin : FlutterPlugin, ActivityAware, MethodCallHandler {
         }
 
         // Setup publication channel
-        publicationMethodCallHandler =
-            PublicationMethodCallHandler(flutterPluginBinding.applicationContext)
+        publicationMethodCallHandler = PublicationMethodCallHandler()
         publicationChannel = MethodChannel(messenger, publicationChannelName)
         publicationChannel.setMethodCallHandler(publicationMethodCallHandler)
+
+        ReadiumReader.init(flutterPluginBinding.applicationContext)
     }
 
     override fun onMethodCall(call: MethodCall, result: Result) {
@@ -58,6 +59,7 @@ class FlutterReadiumPlugin : FlutterPlugin, ActivityAware, MethodCallHandler {
     override fun onDetachedFromEngine(binding: FlutterPluginBinding) {
         Log.d(TAG, "onDetachedFromEngine")
         publicationChannel.setMethodCallHandler(null)
+        ReadiumReader.close()
     }
 
     private fun listAssetFiles(c: Context, rootPath: String): List<String> {

flutter_readium/android/src/main/kotlin/dk/nota/flutter_readium/PublicationError.kt

@@ -28,6 +28,9 @@ sealed class PublicationError(
     class InvalidPublication(cause: Error) :
         PublicationError(cause.message, cause.cause)
 
+    class InvalidPublicationUrl(msg: String) :
+        PublicationError(msg)
+
     class Unexpected(cause: Error) :
         PublicationError(cause.message, cause.cause)
 

flutter_readium/android/src/main/kotlin/dk/nota/flutter_readium/ReadiumExtensions.kt

@@ -1,10 +1,11 @@
-@file:OptIn(ExperimentalReadiumApi::class)
+@file:OptIn(ExperimentalReadiumApi::class, ExperimentalReadiumApi::class)
 
 package dk.nota.flutter_readium
 
 import android.graphics.Color
 import android.util.Log
 import org.json.JSONObject
+import org.readium.adapter.exoplayer.audio.ExoPlayerPreferences
 import org.readium.navigator.media.tts.android.AndroidTtsEngine.Voice.Id
 import org.readium.navigator.media.tts.android.AndroidTtsPreferences
 import org.readium.r2.navigator.Decoration
@@ -14,14 +15,20 @@ import org.readium.r2.navigator.preferences.FontFamily
 import org.readium.r2.shared.ExperimentalReadiumApi
 import org.readium.r2.shared.publication.Locator
 import org.readium.r2.shared.util.Language
+import androidx.core.graphics.toColorInt
+import org.readium.r2.navigator.preferences.Configurable
 
 private fun readiumColorFromCSS(cssColor: String): ReadiumColor {
-    val color = Color.parseColor(cssColor)
+    val color = cssColor.toColorInt()
     return ReadiumColor(color)
 }
 
-fun androidTtsPreferencesFromMap(ttsPrefsMap: Map<String, Any>): AndroidTtsPreferences {
+fun androidTtsPreferencesFromMap(ttsPrefsMap: Map<String, Any>?): AndroidTtsPreferences {
     try {
+        if (ttsPrefsMap == null) {
+            return AndroidTtsPreferences()
+        }
+
         val speed = ttsPrefsMap["speed"] as Double?
         val pitch = ttsPrefsMap["pitch"] as Double?
         val voiceId = ttsPrefsMap["voiceIdentifier"] as String?
@@ -50,8 +57,10 @@ fun decorationFromMap(decoMap: Map<String, Any>): Decoration? {
     }
 }
 
-fun decorationStyleFromMap(decoMap: Map<String, String>): Decoration.Style? {
+fun decorationStyleFromMap(decoMap: Map<String, String>?): Decoration.Style? {
     try {
+        if (decoMap == null) return null
+
         val styleStr = decoMap["style"]
         val tintColorStr = decoMap["tint"]!!
         val style = when (styleStr) {
@@ -72,17 +81,67 @@ fun epubPreferencesFromMap(
 ): EpubPreferences? {
     try {
       val newPreferences = EpubPreferences(
-        fontFamily = prefMap["fontFamily"]?.let { FontFamily(it) } ?: defaults?.fontFamily,
-        fontSize = prefMap["fontSize"]?.toDoubleOrNull() ?: defaults?.fontSize,
-        fontWeight = prefMap["fontWeight"]?.toDoubleOrNull() ?: defaults?.fontWeight,
-        scroll = prefMap["verticalScroll"]?.toBoolean() ?: defaults?.scroll,
-        backgroundColor = prefMap["backgroundColor"]?.let { readiumColorFromCSS(it) } ?: defaults?.backgroundColor,
-        textColor = prefMap["textColor"]?.let { readiumColorFromCSS(it) } ?: defaults?.textColor,
-        pageMargins = prefMap["pageMargins"]?.toDoubleOrNull() ?: defaults?.pageMargins,
+            fontFamily = prefMap["fontFamily"]?.let { FontFamily(it) } ?: defaults?.fontFamily,
+            fontSize = prefMap["fontSize"]?.toDoubleOrNull() ?: defaults?.fontSize,
+            fontWeight = prefMap["fontWeight"]?.toDoubleOrNull() ?: defaults?.fontWeight,
+            scroll = prefMap["verticalScroll"]?.toBoolean() ?: defaults?.scroll,
+            backgroundColor = prefMap["backgroundColor"]?.let { readiumColorFromCSS(it) } ?: defaults?.backgroundColor,
+            textColor = prefMap["textColor"]?.let { readiumColorFromCSS(it) } ?: defaults?.textColor,
+            pageMargins = prefMap["pageMargins"]?.toDoubleOrNull() ?: defaults?.pageMargins,
       )
       return newPreferences
     } catch (ex: Exception) {
       Log.e("ReadiumExtensions", "Error mapping JSONObject to EpubPreferences: $ex")
       return null
     }
 }
+
+@kotlinx.serialization.Serializable
+public data class FlutterAudioPreferences(
+    val volume: Double? = null,
+    val pitch: Double? = null,
+    val speed: Double? = null,
+    val seekInterval: Double? = 30.0,
+) : Configurable.Preferences<FlutterAudioPreferences> {
+
+    override fun plus(other: FlutterAudioPreferences): FlutterAudioPreferences =
+        FlutterAudioPreferences(
+            volume = other.volume ?: volume,
+            pitch = other.pitch ?: pitch,
+            speed = other.speed ?: speed,
+            seekInterval = other.seekInterval ?: seekInterval
+        )
+
+    fun toExoPlayerPreferences(): ExoPlayerPreferences {
+        return ExoPlayerPreferences(
+            pitch = this.pitch,
+            speed = this.speed
+        );
+    }
+
+    companion object {
+        fun fromJSON(jsonObject: JSONObject): FlutterAudioPreferences {
+            return FlutterAudioPreferences(
+                volume = jsonObject.getDouble("volume"),
+                pitch = jsonObject.getDouble("pitch"),
+                speed = jsonObject.getDouble("speed"),
+                seekInterval = jsonObject.getDouble("seekInterval"),
+            )
+        }
+    }
+}
+
+fun ExoPlayerPreferencesFromMap(
+    prefMap: Map<String, String>,
+    defaults: ExoPlayerPreferences?
+): ExoPlayerPreferences? {
+    try {
+        return ExoPlayerPreferences(
+            pitch = prefMap["pitch"]?.toDoubleOrNull() ?: defaults?.pitch,
+            speed = prefMap["speed"]?.toDoubleOrNull() ?: defaults?.speed
+        )
+    } catch (ex: Exception) {
+        Log.e("ReadiumExtensions", "Error mapping JSONObject to ExoPlayerPreferences: $ex")
+    }
+    return null
+}