blob: 6a3eba9c7f6b3156ef956071f35e2791c39cc8ef (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Lars Vogel <Lars.Vogel@vogella.com> - Bug 441116
*******************************************************************************/
package org.eclipse.swt.events;
import java.util.function.*;
import org.eclipse.swt.internal.*;
/**
* Classes which implement this interface provide methods
* that deal with the events that are generated when selection
* occurs in a control.
* <p>
* After creating an instance of a class that implements
* this interface it can be added to a control using the
* <code>addSelectionListener</code> method and removed using
* the <code>removeSelectionListener</code> method. When
* selection occurs in a control the appropriate method
* will be invoked.
* </p>
*
* @see SelectionAdapter
* @see SelectionEvent
*/
public interface SelectionListener extends SWTEventListener {
/**
* Sent when selection occurs in the control.
* <p>
* For example, selection occurs in a List when the user selects
* an item or items with the keyboard or mouse. On some platforms,
* the event occurs when a mouse button or key is pressed. On others,
* it happens when the mouse or key is released. The exact key or
* mouse gesture that causes this event is platform specific.
* </p>
*
* @param e an event containing information about the selection
*/
void widgetSelected(SelectionEvent e);
/**
* Sent when default selection occurs in the control.
* <p>
* For example, on some platforms default selection occurs in a List
* when the user double-clicks an item or types return in a Text.
* On some platforms, the event occurs when a mouse button or key is
* pressed. On others, it happens when the mouse or key is released.
* The exact key or mouse gesture that causes this event is platform
* specific.
* </p>
*
* @param e an event containing information about the default selection
*/
void widgetDefaultSelected(SelectionEvent e);
/**
* Static helper method to create a <code>SelectionListener</code> for the
* {@link #widgetSelected(SelectionEvent e)}) method, given a lambda expression
* or a method reference.
*
* @param c the consumer of the event
* @return SelectionListener
* @since 3.106
*/
static SelectionListener widgetSelectedAdapter(Consumer<SelectionEvent> c) {
return new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
c.accept(e);
}
};
}
/**
* Static helper method to create a <code>SelectionListener</code> for the
* {@link #widgetDefaultSelected(SelectionEvent e)}) method, given a lambda expression
* or a method reference.
*
* @param c the consumer of the event
* @return SelectionListener
* @since 3.106
*/
static SelectionListener widgetDefaultSelectedAdapter(Consumer<SelectionEvent> c) {
return new SelectionAdapter() {
@Override
public void widgetDefaultSelected(SelectionEvent e) {
c.accept(e);
}
};
}
}
|
