gistfile1.scala

class WiredUser {

  val userToWire = (Users.userForDisplay or userDetail.currentValue).get

  private object User {
    val entity = ValueCell(userToWire)
    val edit = ValueCell(false)
    val email = edit.lift(b => entity.lift(_.getEmail.asScala.headOption).get)
  }

  def edit = {
    WiringUI.toNode(User.edit, JqWiringSupport.fade)((mode: Boolean, ns:NodeSeq) => { Wired.editable(
      mode,
      mode,
      (b: Boolean) => ajaxButton(h("Done"), () => {User.edit.set(false); JsCmds.Noop}),
      (b: Boolean) => ajaxButton(h("Edit"),  () => {User.edit.set(true); JsCmds.Noop})
    )})
  }

  def email = WiringUI.toNode(User.email, JqWiringSupport.fade)((email: Option[String], ns: NodeSeq) => {
    Wired.editable(
      email.getOrElse(""),
      User.edit.get,
      (n: String) => ajaxText(n, s => {refresh(setEmail(_, s)); JsCmds.Noop}),
      (n: String) => h(n)
    )
  })
}

object Wired {

   def editable[T](o: T, mode: Boolean, t: (T)=> NodeSeq, f: (T) => NodeSeq) : NodeSeq = {
     mode match {
       case true => t(o)
       case false => f(o)
     }
   }
}