HasAttachHandlers abstract class / dart_web_toolkit_event Library / API Reference / Dart Web Toolkit

HasAttachHandlers abstract class

abstract class HasAttachHandlers extends HasHandlers {
 /**
  * Adds an {@link AttachEvent} handler.
  *
  * @param handler the handler
  * @return the handler registration
  */
 HandlerRegistration addAttachHandler(AttachEventHandler handler);

 /**
  * Returns whether or not the receiver is attached to the
  * {@link com.google.gwt.dom.client.Document Document}'s
  * {@link com.google.gwt.dom.client.BodyElement BodyElement}.
  *
  * @return true if attached, false otherwise
  */
 bool isAttached();
}

Extends

HasHandlers > HasAttachHandlers

Subclasses

Widget

Methods

abstract HandlerRegistration addAttachHandler(AttachEventHandler handler) #

Adds an {@link AttachEvent} handler.

@param handler the handler @return the handler registration

abstract void fireEvent(DwtEvent event) #

inherited from HasHandlers

Fires the given event to the handlers listening to the event's type.

Any exceptions thrown by handlers will be bundled into a UmbrellaException and then re-thrown after all handlers have completed. An exception thrown by a handler will not prevent other handlers from executing.

@param event the event

abstract bool isAttached() #

Returns whether or not the receiver is attached to the {@link com.google.gwt.dom.client.Document Document}'s {@link com.google.gwt.dom.client.BodyElement BodyElement}.

@return true if attached, false otherwise