Base class that supports listening for and dispatching browser events.
Normally events are accessed via the Stream getter:
element.onMouseOver.listen((e) => print('Mouse over!'));
To access bubbling events which are declared on one element, but may bubble up to another element type (common for MediaElement events):
MediaElement.pauseEvent.forTarget(document.body).listen(...);
To useCapture on events:
Element.keyDownEvent.forTarget(element, useCapture: true).listen(...);
Custom events can be declared as:
class DataGenerator {
static EventStreamProvider<Event> dataEvent =
new EventStreamProvider('data');
}
Then listeners should access the event with:
DataGenerator.dataEvent.forTarget(element).listen(...);
Custom events can also be accessed as:
element.on['some_event'].listen(...);
This approach is generally discouraged as it loses the event typing and some DOM events may have multiple platform-dependent event names under the covers. By using the standard Stream getters you will get the platform specific event name automatically.
- Implemented by
Constructors
- Events(EventTarget _ptr)
Properties
- hashCode → int
-
The hash code for this object.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator [](
String type) → Stream -
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited