Allow scala seq/maps as callback function parameters

[ramnivas]

Currently, we transform Seq and Map parameters to case classes to js.Array and literal, but still require parameters to callback functions to be of js types (see onChange of TagsInput for example). It will be nice to allow callbacks to specify normal Scala types.

[ramnivas]

Here is an outline of how we might do it. Given a component with the following as one of its case class parameter:

onChange: js.UndefOr[Seq[String] => Unit] = js.undefined

The macro will create a js properties to be set for the underlying component:

onChangeJs : js.Array[String] => Unit = arr => {
  onChange(Seq(arr.map(e => elementReader.fromJs(e)): _*)
}

Essentially, we transform the argument with code that is a dual of

scalajs-react-bridge/src/main/scala/com/payalabs/scalajs/react/bridge/package.scala

Line 21 in 8bc3b80

js.Array(value.map(e => elementWriter.toJs(e)): _*)

.

[ms-ati]

Any progress on this?

[ramnivas]

Unfortunately, I haven't had a chance to work on this.