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/* -*- 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"
static gboolean
supports_xinput_devices (void)
{
gint op_code, event, error;
return XQueryExtension (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
"XInputExtension",
&op_code,
&event,
&error);
}
XDevice*
device_is_touchpad (XDeviceInfo deviceinfo)
{
XDevice *device;
Atom realtype, prop;
int realformat;
unsigned long nitems, bytes_after;
unsigned char *data;
if (deviceinfo.type != XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TOUCHPAD, False))
return NULL;
prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Synaptics Off", False);
if (!prop)
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;
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 ();
XFree (data);
return device;
}
gdk_error_trap_pop ();
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;
}
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