01: /*
02: * Copyright 2006 Google Inc.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License. You may obtain a copy of
06: * the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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;
19:
20: /**
21: * Event listener interface for mouse events.
22: */
23: public interface MouseListener extends EventListener {
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: }
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