blob: 4c236bf5998e97cddda4cc2c70d7e2f13662632f (
plain)
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
|
/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
/*
* Copyright (c) 2010-2012, Isode Limited, London, England.
* All rights reserved.
*/
package com.isode.stroke.eventloop;
/**
* An Event object represents an external event that requires processing.
* A concrete {@link EventLoop} implementation must ensure that Events are
* processed in the application's main event loop.
*
* <p>An application (and any concrete class of EventLoop) should treat Events
* as opaque objects to be passed to {@link EventLoop#handleEvent(Event)}.
*
* <p>Event processing is designed to happen in the main event loop, so for
* example a GUI application might handle Events in the following manner:
* <pre>
* EventLoop eventLoop = new EventLoop() {
* protected void post(final Event event) {
* // Invoke the callback in the AWT display thread
* SwingUtilities.invokeLater(new Runnable() {
* public void run() {
* handleEvent(event);
* }
* });
* }
* };
* .
* .
* .
* client.onConnected.connect(new Slot() {
* public void call() {
* // This will always be called inside the event dispatching thread
* updateSomeTextFieldInTheGUI("Connected");
* }
* });
* </pre>
*
*/
public class Event {
public interface Callback {
void run();
}
Event(EventOwner owner, Callback callback, int id) {
this.owner = owner;
this.callback = callback;
this.id = id;
}
@Override
public boolean equals(Object other) {
if (other instanceof Event) {
return id == ((Event) other).id;
}
return false;
}
@Override
public int hashCode() {
int hash = 7;
hash = 23 * hash + this.id;
return hash;
}
final int id;
final EventOwner owner;
public final Callback callback;
@Override
public String toString() {
return "Event with id=" + id +
" callback=" + callback +
(owner == null ? " (no owner information)" : " owner=" + owner);
}
}
|