/*
* Copyright 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.event.logical.shared;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.event.shared.HasHandlers;
/**
* A widget that implements this interface is a public source of
* {@link AttachEvent} events.
*/
public interface HasAttachHandlers extends HasHandlers {
/**
* Adds an {@link AttachEvent} handler.
*
* @param handler the handler
* @return the handler registration
*/
HandlerRegistration addAttachHandler(AttachEvent.Handler 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
*/
boolean isAttached();
}