Hello friends, is it possible to implement a debou...

# tornadofx

[mariofelesdossantosjr]

Hello friends, is it possible to implement a debounce action on the button click?

[Samkeene]

Could be done easily with coroutines using an actor.

[melatonina]

Your question is stated imprecisely. If you want to implement debounce on the action event of a button, you could transform the events into a Kotlin Flow, with something like this:

fun Button.actions(): Flow<Unit> = callbackFlow {
    val handler =  EventHandler<ActionEvent> {
        offer(Unit)
    }
    addEventHandler(ActionEvent.ACTION, handler)

    awaitClose { removeEventHandler(ActionEvent.ACTION, handler) }
}

and then use the debounce() method: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/debounce.html

[melatonina]

Obviously, there are many other ways. This is just a modern idiomatic way to implement debounce with Kotlin.

[melatonina]

I didn't test the code.

[mariofelesdossantosjr]

I thought there was something ready from tornadoofx

[mariofelesdossantosjr]

I just want to prevent the user from being able to give several button clicks

[melatonina]

It's another thing from implementing debouncing. Anyway, you can disable the any control when you don't want people to interact with it.