1 /* 2 * Copyright 2007 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy of 6 * the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations under 14 * the License. 15 */ 16 package com.google.gwt.user.client.ui; 17 18 /** 19 * Event handler interface for {@link DisclosureEvent}. 20 * 21 * @see DisclosurePanel 22 */ 23 public interface DisclosureHandler { 24 /** 25 * Fired when the panel is closed. 26 * 27 * @param event event representing this action. 28 */ 29 void onClose(DisclosureEvent event); 30 31 /** 32 * Fired when the panel is opened. 33 * 34 * @param event event representing this action. 35 */ 36 void onOpen(DisclosureEvent event); 37 }