new: allow user to seek a position in the record

core/audioplayer/src/androidMain/kotlin/fr/ajaury/gwenedeg/player/AndroidAudioPlayer.kt

@@ -49,6 +49,10 @@ class AndroidAudioPlayer(
             ?.milliseconds
             ?: 0.milliseconds
 
+    override fun seekTo(position: Duration) {
+        player.seekTo(position.inWholeMilliseconds)
+    }
+
     override fun load(uri: String) {
         val mediaItem = MediaItem.fromUri(uri)
         player.setMediaItem(mediaItem)

core/audioplayer/src/commonMain/kotlin/fr/ajaury/gwenedeg/player/AudioPlayer.kt

@@ -10,6 +10,8 @@ interface AudioPlayer {
 
     val duration: Duration
 
+    fun seekTo(position: Duration)
+
     fun play()
 
     fun pause()

core/audioplayer/src/iosMain/kotlin/fr/ajaury/gwenedeg/player/IosAudioPlayer.kt

@@ -13,7 +13,9 @@ import platform.AVFoundation.duration
 import platform.AVFoundation.pause
 import platform.AVFoundation.play
 import platform.AVFoundation.replaceCurrentItemWithPlayerItem
+import platform.AVFoundation.seekToTime
 import platform.CoreMedia.CMTimeGetSeconds
+import platform.CoreMedia.CMTimeMakeWithSeconds
 import platform.Foundation.NSNotificationCenter
 import platform.Foundation.NSOperationQueue
 import platform.Foundation.NSURL
@@ -45,6 +47,12 @@ class IosAudioPlayer : AudioPlayer {
             return seconds?.seconds ?: 0.milliseconds
         }
 
+    @OptIn(ExperimentalForeignApi::class)
+    override fun seekTo(position: Duration) {
+        val seconds = position.inWholeSeconds
+        player?.seekToTime(CMTimeMakeWithSeconds(seconds.toDouble(), preferredTimescale = 1000))
+    }
+
     @OptIn(ExperimentalForeignApi::class)
     override fun load(uri: String) {
         release()

core/audioplayer/src/jvmMain/kotlin/fr/ajaury/gwenedeg/player/JvmAudioPlayer.kt

@@ -33,6 +33,10 @@ class JvmAudioPlayer : AudioPlayer {
     override val duration: Duration
         get() = (clip?.microsecondLength ?: 0L).microseconds
 
+    override fun seekTo(position: Duration) {
+        clip?.microsecondPosition = position.inWholeMicroseconds
+    }
+
     override fun load(uri: String) {
         release()
 

core/audioplayer/src/webMain/kotlin/fr/ajaury/gwenedeg/player/WebAudioPlayer.kt

@@ -20,6 +20,10 @@ class WebAudioPlayer : AudioPlayer {
     override val duration: Duration
         get() = (audio?.duration?.takeIf { it.isFinite() } ?: 0.0).seconds
 
+    override fun seekTo(position: Duration) {
+        audio?.currentTime = position.inWholeMicroseconds.toDouble()
+    }
+
     override fun load(uri: String) {
         release()