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125 | /* -*- 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 <cdk/cdk.h>
#include <cdk/cdkx.h>
#include <sys/types.h>
#include <X11/Xatom.h>
#include "csd_input-helper.h"
gboolean
supports_xinput_devices (void)
{
gint op_code, event, error;
return XQueryExtension (CDK_DISPLAY_XDISPLAY (cdk_display_get_default ()),
"XInputExtension",
&op_code,
&event,
&error);
}
static gboolean
device_has_property (XDevice *device,
const char *property_name)
{
CdkDisplay *display;
Atom realtype, prop;
int realformat;
unsigned long nitems, bytes_after;
unsigned char *data;
display = cdk_display_get_default ();
prop = XInternAtom (CDK_DISPLAY_XDISPLAY (display), property_name, True);
if (!prop)
return FALSE;
cdk_x11_display_error_trap_push (display);
if ((XGetDeviceProperty (CDK_DISPLAY_XDISPLAY (display), device, prop, 0, 1, False,
XA_INTEGER, &realtype, &realformat, &nitems,
&bytes_after, &data) == Success) && (realtype != None)) {
cdk_x11_display_error_trap_pop_ignored (display);
XFree (data);
return TRUE;
}
cdk_x11_display_error_trap_pop_ignored (display);
return FALSE;
}
XDevice*
device_is_touchpad (XDeviceInfo *deviceinfo)
{
CdkDisplay *display;
XDevice *device;
display = cdk_display_get_default ();
if (deviceinfo->type != XInternAtom (CDK_DISPLAY_XDISPLAY (display), XI_TOUCHPAD, True))
return NULL;
cdk_x11_display_error_trap_push (display);
device = XOpenDevice (CDK_DISPLAY_XDISPLAY (display), deviceinfo->id);
if (cdk_x11_display_error_trap_pop (display) || (device == NULL))
return NULL;
if (device_has_property (device, "libinput Tapping Enabled") ||
device_has_property (device, "Synaptics Off")) {
return device;
}
XCloseDevice (CDK_DISPLAY_XDISPLAY (display), 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 (CDK_DISPLAY_XDISPLAY (cdk_display_get_default ()), &n_devices);
if (device_info == NULL)
return FALSE;
for (i = 0; i < n_devices; i++) {
XDevice *device;<--- Variable 'device' can be declared as pointer to const
device = device_is_touchpad (&device_info[i]);
if (device != NULL) {
retval = TRUE;
break;
}
}
if (device_info != NULL)<--- Condition 'device_info!=NULL' is always true
XFreeDeviceList (device_info);
return retval;
}
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