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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
// See LICENSE file for copyright and license details.
use x11::xlib::{
XEvent,
XKeyEvent,
XButtonEvent,
XMotionEvent,
XCrossingEvent,
XCreateWindowEvent,
XDestroyWindowEvent,
XUnmapEvent,
XMapEvent,
XConfigureEvent,
XExposeEvent,
XPending,
};
use x11::xlib;
use x11::xlib::Display;
use unix_socket::UnixStream;
use unix_socket::UnixListener;
use libc::c_int;
use libc::{
FD_SET,
FD_ZERO,
FD_ISSET,
select,
fd_set,
};
use std::fmt;
use std::ptr;
use std::mem::uninitialized;
use std::cmp::max;
use std::os::unix::io::AsRawFd;
use safe_x11::next_xevent;
pub enum Event {
Key(XKeyEvent, bool),
Button(XButtonEvent, bool),
Drag(XMotionEvent),
Enter(XCrossingEvent),
Leave(XCrossingEvent),
Generic(XEvent),
Create(XCreateWindowEvent),
Destroy(XDestroyWindowEvent),
Unmap(XUnmapEvent),
Map(XMapEvent),
Configure(XConfigureEvent),
Expose(XExposeEvent),
Socket(UnixStream),
NoEvent
}
impl fmt::Debug for Event {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let s = match *self {
Event::Key(ev, pressed) => format!("Key({}, {})", XEvent::from(ev).get_type(), pressed),
Event::Button(ev, pressed) => format!("Button({}, {})", XEvent::from(ev).get_type(), pressed),
Event::Drag(ev) => format!("Drag({})", XEvent::from(ev).get_type()),
Event::Generic(ev) => format!("Generic({})", XEvent::from(ev).get_type()),
Event::Enter(ev) => format!("Enter({})", XEvent::from(ev).get_type()),
Event::Leave(ev) => format!("Leave({})", XEvent::from(ev).get_type()),
Event::Create(ev) => format!("Create({})", XEvent::from(ev).get_type()),
Event::Destroy(ev) => format!("Destroy({})", XEvent::from(ev).get_type()),
Event::Unmap(ev) => format!("Unmap({})", XEvent::from(ev).get_type()),
Event::Map(ev) => format!("Map({})", XEvent::from(ev).get_type()),
Event::Configure(ev) => format!("Configure({})", XEvent::from(ev).get_type()),
Event::Expose(ev) => format!("Expose({})", XEvent::from(ev).get_type()),
Event::Socket(_) => String::from("Socket()"),
Event::NoEvent => String::from("NoEvent"),
};
write!(f, "{}", s)
}
}
pub unsafe fn select_event(display: *mut Display, x11fd: c_int, listener: &UnixListener) -> Event {
// Return right now if there're some XEvent on the queue
if XPending(display) > 0 {
return next_event(display);
}
let socket_fd = listener.as_raw_fd();
let mut read_fdset: fd_set = uninitialized();
FD_ZERO(&mut read_fdset);
FD_SET(x11fd, &mut read_fdset);
FD_SET(socket_fd, &mut read_fdset);
select(max(x11fd, socket_fd) + 1,
&mut read_fdset, ptr::null_mut(), ptr::null_mut(),
ptr::null_mut());
if FD_ISSET(x11fd, &mut read_fdset) {
next_event(display)
} else if FD_ISSET(socket_fd, &mut read_fdset) {
let mut listener_iter = listener.incoming();
if let Some(Ok(stream)) = listener_iter.nth(0) {
return Event::Socket(stream)
} else {
Event::NoEvent
}
} else {
Event::NoEvent
}
}
pub fn next_event(display: *mut Display) -> Event {
let ev = next_xevent(display);
match ev.get_type() {
2 => Event::Key(xlib::XKeyEvent::from(ev), true),
3 => Event::Key(xlib::XKeyEvent::from(ev), false),
4 => Event::Button(xlib::XButtonEvent::from(ev), true),
5 => Event::Button(xlib::XButtonEvent::from(ev), false),
6 => Event::Drag(XMotionEvent::from(ev)),
7 => Event::Enter(XCrossingEvent::from(ev)),
8 => Event::Leave(XCrossingEvent::from(ev)),
12 => Event::Expose(XExposeEvent::from(ev)),
16 => Event::Create(XCreateWindowEvent::from(ev)),
17 => Event::Destroy(XDestroyWindowEvent::from(ev)),
18 => Event::Unmap(XUnmapEvent::from(ev)),
19 => Event::Map(XMapEvent::from(ev)),
22 => Event::Configure(XConfigureEvent::from(ev)),
e => {
println!("Unknown event {}", e);
Event::NoEvent
},
}
}
|
