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
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2010 Bastien Nocera <hadess@hadess.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include "config.h"
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#include <sys/types.h>
#include <X11/Xatom.h>
#include "msd-input-helper.h"
gboolean
supports_xinput_devices (void)
{
gint op_code, event, error;
return XQueryExtension (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
"XInputExtension",
&op_code,
&event,
&error);
}
static gboolean
device_has_property (XDevice *device,
const char *property_name)
{
Atom realtype, prop;
int realformat;
unsigned long nitems, bytes_after;
unsigned char *data;
prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), property_name, True);
if (!prop)
return FALSE;
gdk_error_trap_push ();
if ((XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device, prop, 0, 1, False,
XA_INTEGER, &realtype, &realformat, &nitems,
&bytes_after, &data) == Success) && (realtype != None)) {
gdk_error_trap_pop_ignored ();
XFree (data);
return TRUE;
}
gdk_error_trap_pop_ignored ();
return FALSE;
}
XDevice*
device_is_touchpad (XDeviceInfo *deviceinfo)
{
XDevice *device;
if (deviceinfo->type != XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TOUCHPAD, True))
return NULL;
gdk_error_trap_push ();
device = XOpenDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), deviceinfo->id);
if (gdk_error_trap_pop () || (device == NULL))
return NULL;
if (device_has_property (device, "libinput Tapping Enabled") ||
device_has_property (device, "Synaptics Off")) {
return device;
}
XCloseDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device);
return NULL;
}
gboolean
touchpad_is_present (void)
{
XDeviceInfo *device_info;
gint n_devices;
guint i;
gboolean retval;
if (supports_xinput_devices () == FALSE)
return TRUE;
retval = FALSE;
device_info = XListInputDevices (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), &n_devices);
if (device_info == NULL)
return FALSE;
for (i = 0; i < n_devices; i++) {
XDevice *device;
device = device_is_touchpad (&device_info[i]);
if (device != NULL) {
retval = TRUE;
break;
}
}
if (device_info != NULL)
XFreeDeviceList (device_info);
return retval;
}
|
