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package vfd.dashboard.ui.instruments
import rx._
import org.scalajs.dom.html
/** Common trait to all flight instruments. */
trait Instrument[A] {
/** Initial value. */
val initial: A
/** Current value that is displayed in the instrument. */
val value: Var[A] = Var(initial)
/** HTML element that contains the rendered instrument */
val element: html.Element
/** Performs the actual UI update of this instrument. */
protected def update(newValue: A): Unit
/** Call when instrument has finished setting up its UI. */
protected def ready() = {
Obs(value, skipInitial = true) {
update(value())
}
}
}
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