core/dev.fritz2.core/Listener

Listener

class Listener<X : Event, out T : EventTarget>(events: Flow<X>) : Flow<X>

Encapsulates the Flow of the Event.

Constructors

Listener

fun <X : Event, out T : EventTarget> Listener(listener: Listener<X, T>)

Listener

fun <X : Event> Listener(events: Flow<X>)

Functions

collect

open suspend override fun collect(collector: FlowCollector<X>)

composedPath

fun composedPath(): Flow<Array<EventTarget>>

Calls Event.composedPath on the Event-flow.

preventDefault

fun preventDefault(): Listener<X, T>

Calls Event.preventDefault on the Event-flow.

stopImmediatePropagation

fun stopImmediatePropagation(): Listener<X, T>

Calls Event.stopImmediatePropagation on the Event-flow.

stopPropagation

fun stopPropagation(): Listener<X, T>

Calls Event.stopPropagation on the Event-flow.

Extensions

arrayBuffer

val Flow<MessageEvent>.arrayBuffer: Flow<ArrayBuffer>

gives the MessageEvent.data as Flow of ArrayBuffer

blob

val Flow<MessageEvent>.blob: Flow<Blob>

gives the MessageEvent.data as Flow of Blob

body

val Flow<MessageEvent>.body: Flow<String>

gives the MessageEvent.data as Flow of String

composedPath

fun <E : Event> Flow<E>.composedPath(): Flow<Array<EventTarget>>

Calls Event.composedPath on the Event-flow.

data

val Flow<MessageEvent>.data: Flow<Any?>

gives the MessageEvent.data as Flow of Any

files

fun Listener<*, HTMLInputElement>.files(): Flow<FileList?>

Extracts a FileList from the Event.target.

handledBy

infix fun <A> Flow<A>.handledBy(handler: Handler<A>)

Connects a Flow to a Handler.

infix fun <A> Flow<A>.handledBy(execute: suspend (A) -> Unit): Job

Connects a Flow to a suspendable execute function.

preventDefault

fun <E : Event> Flow<E>.preventDefault(): Flow<E>

Calls Event.preventDefault on the Event-flow.

selectedIndex

fun Listener<*, HTMLSelectElement>.selectedIndex(): Flow<Int>

Extracts the HTMLSelectElement.selectedIndex from the Event.target.

selectedText

fun Listener<*, HTMLSelectElement>.selectedText(): Flow<String>

Extracts the HTMLOptionElement.text from the selected HTMLOptionElement.

selectedValue

fun Listener<*, HTMLSelectElement>.selectedValue(): Flow<String>

Extracts the HTMLOptionElement.value from the selected HTMLOptionElement.

states

fun Listener<*, HTMLInputElement>.states(): Flow<Boolean>

Extracts the HTMLInputElement.checked state from the Event.target.

stopImmediatePropagation

fun <E : Event> Flow<E>.stopImmediatePropagation(): Flow<E>

Calls Event.stopImmediatePropagation on the Event-flow.

stopPropagation

fun <E : Event> Flow<E>.stopPropagation(): Flow<E>

Calls Event.stopPropagation on the Event-flow.

valid

val <M : ValidationMessage> Flow<List<M>>.valid: Flow<Boolean>

Checks if a Flow of a List of ValidationMessages is valid.

values

fun Listener<*, HTMLInputElement>.values(): Flow<String>

fun Listener<*, HTMLSelectElement>.values(): Flow<String>

fun Listener<*, HTMLFieldSetElement>.values(): Flow<String>

fun Listener<*, HTMLTextAreaElement>.values(): Flow<String>

Extracts the HTMLInputElement.value from the Event.target.