Midi access in scala.js

midi.scala

import dom.raw.Navigator

@native
trait MidiNavigator extends Navigator {
  
  def requestMIDIAccess(): MidiAccess = js.native
}

object MidiNavigator {
  implicit def midinavigator(mn: Navigator): MidiNavigator =
    mn.asInstanceOf[MidiNavigator]
}

@native
trait MidiAccess extends js.Object {

 // whatever is in the MIDIAccess object

}

import MidiNavigator._

object Midi {
  import scala.scalajs.js.DynamicImplicits.truthValue
  
  def apply(): Option[MidiAccess] =
    if (js.Dynamic.global.window.navigator.requestMIDIAccess)
      Some(dom.window.navigator.requestMIDIAccess())
    else
      None
}


object ScalaJSExample extends js.JSApp  {

  def main(): Unit = {
    if(Midi().isDefined){
      println("Yeah")
    }else{
      println("arf")

    }
  }
}