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Java > Open Source Codes > com > google > gwt > user > client > ui > FiresDisclosureEvents


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  * A widget that implements this interface fires the events defined by
20  * the {@link DisclosureHandler} interface.
21  */
22 public interface FiresDisclosureEvents {
23   
24   /**
25    * Adds a handler interface to receive open events.
26    *
27    * @param handler the handler to add
28    */
29   void addEventHandler(DisclosureHandler handler);
30   
31   /**
32    * Removes a previously added handler interface.
33    *
34    * @param handler the handler to remove.
35    */
36   void removeEventHandler(DisclosureHandler handler);
37 }
38
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