EventStreamProvider<T extends Event> class
Helper class used to create streams abstracting DOM events. This is a
piece of the helper layer directly derived from a similar feature in
dart:html
.
A few differences compared to dart:html
:
-
The helper layer doesn't have
ElementList
APIs, so this provider omits APIs related to them. -
Streams returned here behave slighly differently. The timing of when callbacks execute is sometimes different when using stream to future APIs like
.first
. In particular, when using synchronous browser APIs likedispatchEvent
, the Dart callbacks that would have executed synchronously indart:html
, may now execute asynchronously. This only breaks code that relied on specific timing details of the implementation, but at an API level, the change is non breaking.
Constructors
- EventStreamProvider(String _eventType)
-
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
forElement(
Element e, {bool useCapture = false}) → ElementStream< T> - Gets a Stream for this event type, on the specified element.
-
forTarget(
EventTarget? e, {bool useCapture = false}) → Stream< T> - Gets a Stream for this event type, on the specified target.
-
getEventType(
EventTarget target) → String - Gets the type of the event which this would listen for on the specified event target.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited