ElementStream class - dart:html library (original) (raw)
ElementStream<T extends Event> class abstract
A specialized Stream available to Elements to enable event delegation.
Implemented types
- Stream<T>
Constructors
Properties
The first element of this stream.
no setterinherited
The hash code for this object.
no setterinherited
Whether this stream is a broadcast stream.
no setterinherited
Whether this stream contains any elements.
no setterinherited
The last element of this stream.
no setterinherited
The number of elements in this stream.
no setterinherited
A representation of the runtime type of the object.
no setterinherited
The single element of this stream.
no setterinherited
Methods
any(bool test(T element))→ Future<bool>
Checks whether test accepts any element provided by this stream.
inherited
asBroadcastStream({void onListen(StreamSubscription<T> subscription)?, void onCancel(StreamSubscription<T> subscription)?})→ Stream<T>
Returns a multi-subscription stream that produces the same events as this.
inherited
asyncExpand<E>(Stream<E>? convert(T event))→ Stream<E>
Transforms each element into a sequence of asynchronous events.
inherited
asyncMap<E>(FutureOr<E> convert(T event))→ Stream<E>
Creates a new stream with each data event of this stream asynchronously mapped to a new event.
inherited
capture(void onData(T event))→ StreamSubscription<T>
Adds a capturing subscription to this stream.
Adapt this stream to be a Stream<R>.
inherited
contains(Object? needle)→ Future<bool>
Returns whether needle occurs in the elements provided by this stream.
inherited
distinct([bool equals(T previous, T next)?])→ Stream<T>
Skips data events if they are equal to the previous data event.
inherited
drain<E>([E? futureValue])→ Future<E>
Discards all data on this stream, but signals when it is done or an error occurred.
inherited
elementAt(int index)→ Future<T>
Returns the value of the indexth data event of this stream.
inherited
every(bool test(T element))→ Future<bool>
Checks whether test accepts all elements provided by this stream.
inherited
expand<S>(Iterable<S> convert(T element))→ Stream<S>
Transforms each element of this stream into a sequence of elements.
inherited
firstWhere(bool test(T element), {T orElse()?})→ Future<T>
Finds the first element of this stream matching test.
inherited
fold<S>(S initialValue, S combine(S previous, T element))→ Future<S>
Combines a sequence of values by repeatedly applying combine.
inherited
forEach(void action(T element))→ Future<void>
Executes action on each element of this stream.
inherited
handleError(Function onError, {bool test(dynamic error)?})→ Stream<T>
Creates a wrapper Stream that intercepts some errors from this stream.
inherited
join([String separator = ""])→ Future<String>
Combines the string representation of elements into a single string.
inherited
lastWhere(bool test(T element), {T orElse()?})→ Future<T>
Finds the last element in this stream matching test.
inherited
listen(void onData(T event)?, {Function? onError, void onDone()?, bool? cancelOnError})→ StreamSubscription<T>
Adds a subscription to this stream.
inherited
map<S>(S convert(T event))→ Stream<S>
Transforms each element of this stream into a new stream event.
inherited
matches(String selector)→ Stream<T>
Return a stream that only fires when the particular event fires for elements matching the specified CSS selector.
noSuchMethod(Invocation invocation)→ dynamic
Invoked when a nonexistent method or property is accessed.
inherited
pipe(StreamConsumer<T> streamConsumer)→ Future
Pipes the events of this stream into streamConsumer.
inherited
reduce(T combine(T previous, T element))→ Future<T>
Combines a sequence of values by repeatedly applying combine.
inherited
singleWhere(bool test(T element), {T orElse()?})→ Future<T>
Finds the single element in this stream matching test.
inherited
Skips the first count data events from this stream.
inherited
skipWhile(bool test(T element))→ Stream<T>
Skip data events from this stream while they are matched by test.
inherited
Provides at most the first count data events of this stream.
inherited
takeWhile(bool test(T element))→ Stream<T>
Forwards data events while test is successful.
inherited
timeout(Duration timeLimit, {void onTimeout(EventSink<T> sink)?})→ Stream<T>
Creates a new stream with the same events as this stream.
inherited
Collects all elements of this stream in a List.
inherited
Collects the data of this stream in a Set.
inherited
A string representation of this object.
inherited
transform<S>(StreamTransformer<T, S> streamTransformer)→ Stream<S>
Applies streamTransformer to this stream.
inherited
where(bool test(T event))→ Stream<T>
Creates a new stream from this stream that discards some elements.
inherited
Operators
operator ==(Object other)→ bool
The equality operator.
inherited