goog.events.EventTarget
An implementation of goog.events.Listenable with full W3C
EventTarget-like support (capture/bubble mechanism, stopping event
propagation, preventing default actions).
You may subclass this class to turn your class into a Listenable.
Unless propagation is stopped, an event dispatched by an
EventTarget will bubble to the parent returned by
getParentEventTarget. To set the parent, call
setParentEventTarget. Subclasses that don't support
changing the parent can override the setter to throw an error.
Example usage:
var source = new goog.events.EventTarget();
function handleEvent(e) {
alert('Type: ' + e.type + '; Target: ' + e.target);
}
source.listen('foo', handleEvent);
// Or: goog.events.listen(source, 'foo', handleEvent);
...
source.dispatchEvent('foo'); // will call handleEvent
...
source.unlisten('foo', handleEvent);
// Or: goog.events.unlisten(source, 'foo', handleEvent);
new EventTarget()
| Parameters | None. |
|---|