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


1 /*
2  * Copyright 2006 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 import java.util.EventListener JavaDoc;
19
20 /**
21  * Event listener interface for mouse events.
22  */
23 public interface MouseListener extends EventListener JavaDoc {
24
25   /**
26    * Fired when the user depresses the mouse button over a widget.
27    *
28    * @param sender the widget sending the event
29    * @param x the x coordinate of the mouse
30    * @param y the y coordinate of the mouse
31    */
32   void onMouseDown(Widget sender, int x, int y);
33
34   /**
35    * Fired when the mouse enters a widget's area.
36    *
37    * @param sender the widget sending the event
38    */
39   void onMouseEnter(Widget sender);
40
41   /**
42    * Fired when the mouse leaves a widget's area.
43    *
44    * @param sender the widget sending the event
45    */
46   void onMouseLeave(Widget sender);
47
48   /**
49    * Fired when the user moves the mouse over a widget.
50    *
51    * @param sender the widget sending the event
52    * @param x the x coordinate of the mouse
53    * @param y the y coordinate of the mouse
54    */
55   void onMouseMove(Widget sender, int x, int y);
56
57   /**
58    * Fired when the user releases the mouse button over a widget.
59    *
60    * @param sender the widget sending the event
61    * @param x the x coordinate of the mouse
62    * @param y the y coordinate of the mouse
63    */
64   void onMouseUp(Widget sender, int x, int y);
65 }
66
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